Weapon Sight Light Emission System
A light emission assembly for weapon sights which provides a viewable illuminated aiming indicia of substantially fixed area and uniform brightness regardless of the ambient light conditions.
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This United States Non-provisional patent application claims the benefit of U.S. Provisional Patent Application No. 61/459,749, filed Dec. 17, 2010, incorporated by reference herein.
I. BACKGROUNDA light emission assembly for weapon sights which provides a viewable illuminated aiming indicia of substantially fixed area and uniform brightness regardless of the ambient light conditions.
Certain conventional weapon sights use light gathering elements such as optical fiber(s), fluorescent fibers, or the like, to transmit ambient light to one or both ends to provide an aiming indicia useful in aiming a weapon. Improvements have been made over time to locate an artificial light source (such as tritium gas-filled, thin glass capsules whose inner surfaces are coated with a phosphor, light emitting diodes, or like) adjacent the external surfaces of the light gathering fibers to provide an aiming indicia useful in aiming the weapon even in low ambient light or darkness. For example, U.S. Pat. Nos. 6,216,352 and 6,122,833 each describe a sight for weapons which includes an elongated optical fiber of light gathering plastic having a first end at which light is emitted to provide an aiming indicia and location of an elongated, phosphorescent, light-emitting element disposed adjacent the outer surface of the elongated optical fiber, or as to certain embodiments, at the transverse end wall defining the second end of the elongated optical fiber.
However, there are certain disadvantages with these types of conventional weapon sights in that the installation of the light gathering element and the light emitting element in proper dimensional relation to achieve sufficient brightness of the aiming indicia can be difficult. In some cases, the light gathering element or the light emitting element can migrate due to a failure in whole or in part of the means for attaching these components to the weapon sight, such as a failure of adhesive.
Additionally, because the light emitting material often used is tritium capsule, the assembly of the tritium capsule adjacent the outer surface of the light gathering fiber may require an additional casing to enclose the assembly to obviate damage to the tritium capsule and to address safety concerns of using an uncontained a radio-isotope.
Moreover, conventional light gathering elements can have an overall length which acts to reduce the field of illumination of the aiming indicia which in turn can reduce accuracy in aiming the weapon. The longer the fiber the greater the attenuation losses, due to transmissivity, refraction, and reflection of light. As to particular conventional weapon sights which locate a tritium capsule adjacent the transverse end wall defining the second end of the elongated optical fiber, the overall length of the light gathering element becomes the sum of the light gathering element and the light emitting element which acts to further increase the overall length and acts to further exacerbate attenuation losses which reduce brightness of the field of illumination of the aiming indicia.
Additionally, the longer length of conventional light gathering elements along with the light emitting element, the shorter the sight radius (the distance between the visible part of the front sight and the visible part of the back sight). The shortened sight radius can have a detrimental effect on accuracy of aiming the weapon.
Moreover, the longer length of conventional light gathering elements can mechanically interfere with holstering the weapon or use of the weapon with other weapon paraphernalia.
The instant invention provides a weapon sight light emission assembly which overcomes in whole or in part certain of the forgoing disadvantages of conventional illuminated weapon sights.
II. SUMMARY OF THE INVENTIONAccordingly, a broad object of the invention can be to provide various embodiments of a light emission assembly useful in weapon sights to provide an illuminated sight regardless of the ambient light conditions. The light emission assembly can include a light conductive member produced from light conductive material which receives light on the external surface and transmits the light to a viewable end. The light conductive member can further include a chamber in which a light emitting element can be located to emit light toward the viewable end of the light emission assembly. The light emission assembly can further provide a lens configured to define one illumination field over which the light transmitted by the light conductive material and the emitted light of the light emitting element can spread to provide a viewable aiming indicia having substantially uniform area regardless of the ambient light conditions.
Another substantial object of the invention can be to provide a numerous and wide variety of embodiments of the inventive light emission assembly each of which have a configuration that locates the light emitting element inside of the light emission assembly as opposed to locating the light emitting element adjacent the external surface whether above, below, or at an end wall.
Another substantial object of the invention can be to provide emitted light from a light emitting element which produces a first illumination pattern proximate the viewable end of a light emission assembly and transmitted light from a light conductive material which produces a second illumination pattern proximate the viewable end of the light emission assembly each of the first and second illumination patterns having areas independent of the other with the first surrounding the second which are combined and spread over one illumination field of fixed area by a lens to provide a viewable aiming indicia having substantially uniform area regardless of the ambient light conditions.
Another substantial object of the invention can be to provide a lens which convergently reflects an amount of light conducted through a light conductive member to spread over one illumination field of fixed area and divergently refracts an amount of light emitted by a light emitting element located inside of a light emission assembly to spread over the one illumination field of fixed area with the combined light spread over the one illumination field of fixed area to provide a viewable aiming indicia having substantially uniform area regardless of the ambient light conditions
Another substantial object of the invention can be to provide a lens which convergently reflects an amount of light conducted through a light conductive member to spread over one illumination field of fixed area and divergently refracts an amount of light emitted by a light emitting element located inside of a light emission assembly to spread over the one illumination field of fixed area both the amount of light convergently reflected onto the illumination field and the amount of light divergently reflected onto the illumination field affording substantially the same viewing angle.
Naturally, further objects of the invention are disclosed throughout other areas of the specification, drawings, photographs, and claims.
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Various light conductive materials can be utilized to produce the light conductive member (7), including, without limitation, extruded, molded, cast, or fabricated plastic (such as polystyrene, polycarbonate, polyvinylchloride, TEFLON, nylon, polystyrene, polyurethane, acrylic, polyethylene teraphthalate, polyethersulfone, polymethylmethacrylate, or the like, separately or in various combinations thereof). Particular embodiments of the light conductive member (7), as a consequence of the type of light conductive material or the constructional form of the light conductive member (7) (or as a consequence of both), can achieve total internal reflection, substantial internal reflection, or the desired level of internal reflection of the amount of light (9) incident on the external surface (8) of the light conductive member (7) to allow transmission of all, substantially all, or the desired amount of light (9) to the ends (11) (12) of the light conductive member (7). Light conductive materials suitable for use in embodiments of the invention can be obtained from ACI Plastics, St. Louis, Mo., USA.
As to other particular embodiments, the light conduct member (7) can be further surrounded by a plastic cladding material (such as polystyrene, polymethylmethacrylate, or fluoropolymer) which reflects the amount of light (9) within the light conductive material for transmission of the amount of light (9) to the ends (11) (12) of the light conductive member (7). The length, cross sectional configuration (such as circular, square, rectangular, oval, triangular, or the like), external surface area, thickness, width, or the amount of one or more dopants (13) within the light conductive material can be adjusted depending on the desired brightness, color, or amount of light (9) to be transmitted in the light conductive member (7) and to be emitted from the member ends (11) (12).
The light conductive materials of embodiments of the light conductive members (7) or light emission assembly (29) can further include or contain one or more dopants (13). The term dopant (13) as used herein means one or a plurality of similar or dissimilar trace impurity element(s) included separately or in various permutations and combinations in the light conductive material at concentrations such that the amount of light (9) in the spectrum received by the external surface (8) and transmitted within the light conducting member (7), whether in whole or in part, activates the one or more dopant(s) (13) which in turn fluoresce in a corresponding one or more wavelengths delivered to the member ends (11) (12) of the light conductive member (7) as a color perceivable to the eye (14).
The light conductive materials of embodiment of the light conductive members (17) or light emission assembly (29) can further include or contain one or more colorants (94). The colorant can be combined in various permutations and combinations with the light conductive material and one or more dopants (13) to achieve a desired color and fluorescence of the light conductive member (7). Combinations of colorant(s) (94) with dopant(s) (13) suitable for use with embodiments of the invention can be obtained from ColorChem International Corporation, 8601 Dunwoody Place, Atlanta, Ga.; Keystone Aniline Corporation, 2501 West Fulton Street, Chicago, Ill.; or Sun Chemical Corporation, 25 Waterview Boulevard, Persippany, N.J.
The term “light source (10) external to the light conductive member (7)” as used herein includes any source of light external to the light conductive member (7) which emits an amount of light in any one or more of the ultraviolet, infrared, or visible spectrum and without limitation to the forgoing general definition includes: celestial sources such as the sun, moon, stars; atmospheric sources such as aurorae, lightning, cerenkov radiation; living organisms which emit light or bioluminescence; direct chemical sources in the form of chemoluminescence, fluorescence, phosphorescence; combustion sources such as gas, candles, kerosene, oil; electric powered sources such as incandescent lamps, electroluminescent lamps, gas discharge lamps, fluorescent lamps, lamps which emit ultraviolet or infrared light in whole or in part, or the like, and combinations thereof.
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The light emitting element (15) can take a variety of forms including, without limitation: light emitting diodes, luminescent paint, chemoluminescent elements, electroluminescent conductors, or radioluminescent elements (for example, a radionuclide which emits beta radiation, such as a tritium (91) gas-filled capsules having capsule inner surfaces (92) coated with a dopant (93) or phosphor activated by beta radiation emitted by the tritium (91)) (such as those available from MB Microtec in CH-3172 lower panels in different colors), or the like.
The amount of emitted light (16) delivered to the eye (14) from the light emitting element (15) in accordance with embodiments of the invention can be sufficient even in the absence or reduction in the amount of light (9) received and transmitted by the light conductive member (7) (or light emission assembly (29)) to allow the weapon (2) to be aimed.
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Snell's law allows determination of the angle of refraction as light changes conducting mediums (for example air to water, water to glass, air to the material of the light conductive member (7), or the like). When the value for
sin θ1 exceeds one the equation has no solution since the sine function is only defined between zero and one. The physical behavior for this condition is total internal reflection (“TIR”) (40). The angle of incidence (41) at which this occurs is referred to as θcritical or θC. When this occurs there will be no refraction of the amount of light (9) received by the external surface (8) of the light conductive member (7) and all or substantially all of amount of light (9) can be reflected (40) within the light conductive member (7). TIR (40) is desirable because this condition reduces the amount of light lost from the light conductive member (7) due to refraction. θC is a function of the indexes of refraction of the materials, η1,η2 and the angle of incidence (41) of the amount of light (9) upon the external surface (8) of the light conductive member (7). TIR can be achieved in certain embodiments of the light conductive member (7) and light emission assemblies (29) having configurations which direct rays of transmitted light (65) (as shown for example in
Concomitantly, as embodiments approach TIR (40), the amount of light (9) directed towards the eye (14) by the configuration of the lens (18) can be have angle of incidence less than θC to increase the amount of light (9) leaving embodiments of the light emission assembly (29). As further described below the configuration of the lens (18) can further direct that amount of light (9) leaving the light emission assembly (29) at an angle of egress (67) which can match or be similar to the angle of the rays of emitted light (66) leaving the light emission assembly (29) generated by the light emitting element (15), as further described below. The angle of egress (67) of the rays of transmitted light (65) or rays of emitted light (66) from the lens (18) can be a function of the internal angle of reflection (40), refraction and conduction across the internal surface (68) of the light conductive member (7) including the first portion (32) and second portion (33) if so configured, the emitted light (16) from the light emitting element (15), the subsequent reflection inside the lens (18), the configuration of the transmitted light reflecting surface (52), and the configuration of the of emitted light refraction surface (51) of the lens (18).
The front sight (5) can be configured in accordance with the Fresnel equations to achieve greater light gathering abilities of the light emission assembly (25). The Fresnel equations allow determination of the magnitude of the reflected and refracted light rays upon the external surface (8) and internal surface (68) of embodiments of the light conductive member (7) or the light emission assembly (29).
The Fresnel Equations:
One advantage of the application of the Fresnel Equations can be determination of the range of angles of incidence (41) (or specific or selected angles of incidence (41) within the range) which can enter the light conductive member (7) or light emission assembly (29) rather than reflect back into the environment.
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One advantage of providing the transitional portion (34) can be to achieve a greater cross sectional diameter of the second portion (33) of the light conductive member (7) to correspondingly provide an increased area of the illumination field (49) of the aiming indicia (48) at the viewing end (30) of the light emission assembly (29).
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The chamber (42) and the light emitting element (15) can be configured to direct emitted light (16) toward the viewing end (30) of the light conductive member (7). As to certain embodiments in which the light emitting element (15) comprises a tritium capsule (44) the emitted light (16) can be transmitted from the tritium capsule end (45) (the other surfaces can be but are not necessarily shielded to prevent light emission in other directions). As to certain embodiments, the emitted light (16) of the light emitting element (15) can in part or in whole be directed into the light conductive member (7). One or more dopants (13) contained in the light conductive member (7) can fluoresce in response to the emitted light (16) directed into the light conductive member (7) by the light emitting element (15). The fluorescent light emitted by the one or more dopants (13) can be transmitted by the light conductive member (7) to the viewing end (30) of the light conductive member (7) or the light emission assembly (29).
As to certain embodiments, the tritium capsule (44) can be received within the chamber (42) with a light emitting end (45) directed toward the viewing end (30) of the light conductive member (7). As to those embodiments in which the second portion (33) of the light conductive member (7) has a circular cross section as shown in the Figures, the chamber (42) can also have a circular cross section with the central longitudinal axis (38) of the light conducting member (7) passing generally through the center of the chamber (42) or the chamber (42) can be coaxially disposed inside of a light emission assembly (29) having the light conductive member (7) and the lens (18) also coupled in coaxial relation.
As one non-limiting example of operable dimensional relations of the embodiment the light conductive member (7) shown in
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As one non limiting example, the lens (18) can be coupled to the light conductive member (7) after the light emitting element (15) has been received within the chamber (42). The lens (18) can define the boundary of the illumination field (49) proximate the viewing end (30) (see for example
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However the invention is not so limited and each of the viewing angles (67) (73) can be selected within a range consisting of: about 15 degrees to about 17 degrees, about 16 degrees to about 18 degrees, about 17 degrees to about 19 degrees, about 18 degrees to about 20 degrees, about 19 degrees to about 21 degrees, about 20 degrees to about 22 degrees, about 21 degrees to about 23 degrees, about 22 degrees to about 24 degrees, and about 23 degrees to about 25 degrees.
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The base (17) can further define a light receiving aperture (23), as above described. The perimeter (24) of the light receiving aperture (23) can be configured to allow a portion of the external surface (8) of the light conductive member (7) when located within the internal hollow space (21) of the base (17) to receive an amount of light (9) from a light source (10) (for example as shown in
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The light emission assembly (29) can be longitudinally axially secured in the hollow inside space (21) of a base (17), as above described. In the example of
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A method of producing embodiments of the light emission assembly (29) for a weapon sight (1) can include providing a light conductive member (7) having a length disposed between a member first end (11) and a member second end (12) and an external surface (8) configured to receive a first amount of light (9) from a light source (10) external to the light conductive member (7), disposing a chamber (42) inside or entirely inside of the light conductive member (7), and disposing a light emitting element (15) inside or entirely inside of the chamber (42) which emits a second amount of light (16) received by the light conductive member (7). The light conductive member (7) conducting the first and second amount of light (9) (16) to the member first end (11) of said light conductive member (7), thereby providing a viewable aiming indicia (43). The method can further include directly connecting a lens (18) to the member first end (11) of said light conductive member (7). As to particular embodiments, the lens (18) can be produced as a piece discrete from the light conductive member (7); however, the tem′ “directly connected” is also intended to encompass the lens (18) and light conductive member (7) having the chamber (42) disposed therein as a one-piece structure. The method can further include configuring the lens (18) to convergently refract the first amount of light (9) conducted within the light conductive member (7) to pre-selected boundary (101) of an illuminated field (49) at the member first end (11) of the light conductive member (7) to provide the viewable aiming indicia (48). The method can further include configuring the closed end (95) of the chamber (42) as an emitted light refraction surface (51) to divergently refract the second amount of light (16) emitted from the light emitting element (15) toward the pre-selected boundary (101) of the illumination field (49) at the member first end (11) of the light conductive member (7) to provide the viewable aiming indicia (48). The method can further include configuring the lens (18) and the emitted light refraction surface (51) to spread each of the first amount of light (9) and the second amount of light (16) emitted by said light emitting element (15) transmitted within said light conductive member (7) toward or to the pre-selected boundary (101) of the illumination field (49) at the first end (11) of the light conductive member (7) to provide the viewable aiming indicia (48). The method can further include coaxially coupling one or more of the lens (18), the chamber (42), the emitted light refraction surface (51), and the light conductive member (7) in coaxial relation. The term “coaxial or coaxially” for the purposes of this invention means that two or more three dimensional forms, such as the lens (18), the light conductive member (7), the chamber (42), and the emitted light refraction surface (51), share a common axis or are concentric to the extent necessary to spread the first amount of light (9) and the second amount of light (16) toward or to the pre-selected boundary (101) of an illumination field (49) at the member first end (11). The method can further include configuring the chamber (42) as a cylindrical bore (71), and configuring the emitted light refraction surface (51) a cone (72). The term “cone” means for the purposes of this invention a hollow object that tapers from a circular or substantial circular base toward a point including as to particular embodiments truncate cones. The method can also include locating the closed end (95) of the chamber (42) between the member first end (11) and the member second end (12) of the light conductive member (7) and configuring the chamber (42) with an open end (96) communicating with the second end (12) of the light conductive member (7), the open end (96) allowing access to the chamber (42) from the member second end (12). The method can further include sealably engaging an end seal (97) to the open end (96) of the chamber (42). The method can further include doping the light conductive member (7) with one or more dopants (13) which fluoresce in response to said first amount of light (9) conducted within the light conductive member (7). The method can further include doping the light conductive member (7) with one or more dopants (13) which fluoresce in response to the second amount of light (16) emitted by the light emitting element (15).
A method of providing or generating an aiming indicia (48) the light emission assembly (29) can include receiving a first amount of light (9) on the external surface (8) of a light conducting member (7) having a length disposed between a member first end (11) and a member second end (12), conducting the first amount of light (9) within the light conductive member (7) to the member first end (11), emitting a second amount of light (16) from a light emitting element (15) located inside of a chamber (42) disposed inside of the light conducting member (7), conducting the second amount of light (16) within the light conductive member (7) to the member first end (11), spreading both of said first amount of light (9) and said second amount of light (16) transmitted within the light conductive member (7) toward or to the pre-selected boundary (101) of an illumination field (49) to provide the aiming indicia (48) for the light emission assembly (29). The method can further include convergently refracting said first amount of light (9) conducted through the light conductive member (7) to define the boundary (101) of the illumination field (48) and divergently refracting said second amount of light (16) emitted by the light emitting element (15) toward or to the boundary (101) of the illumination field (48), thereby uniformly spreading the first amount of light (9) and the second amount of light (16) toward the boundary (101) of the illumination field (48). The method can further include conducting an amount of fluorescent light (105) emitted by one or more dopants (13) contained in the light conductive member (7) to the member first end (11) of the light conductive member (7). The method can further include activating the one or more dopants (13) contained in the light conductive member (7) with the first amount of light (9) received by the external surface (8) of the light conductive member (7) or activating the one or more dopants (13) contained in the light conductive member (7) with said second amount of light (16) emitted by the light emitting element (15).
As can be easily understood from the foregoing, the basic concepts of the present invention may be embodied in a variety of ways. The invention involves numerous and varied embodiments of a weapon sight light emission system which can be incorporated into a wide variety of sights for weapons.
As such, the particular embodiments or elements of the invention disclosed by the description or shown in the figures or tables accompanying this application are not intended to be limiting, but rather exemplary of the numerous and varied embodiments generically encompassed by the invention or equivalents encompassed with respect to any particular element thereof. In addition, the specific description of a single embodiment or element of the invention may not explicitly describe all embodiments or elements possible; many alternatives are implicitly disclosed by the description and figures.
It should be understood that each element of an apparatus or each step of a method may be described by an apparatus term or method term. Such terms can be substituted where desired to make explicit the implicitly broad coverage to which this invention is entitled. As but one example, it should be understood that all steps of a method may be disclosed as an action, a means for taking that action, or as an element which causes that action. Similarly, each element of an apparatus may be disclosed as the physical element or the action which that physical element facilitates. As but one example, the disclosure of “a sight” should be understood to encompass disclosure of the act of “sighting”—whether explicitly discussed or not—and, conversely, were there effectively disclosure of the act of “sighting”, such a disclosure should be understood to encompass disclosure of “sighting” and even a “means for sighting.” Such alternative terms for each element or step are to be understood to be explicitly included in the description.
In addition, as to each term used it should be understood that unless its utilization in this application is inconsistent with such interpretation, common dictionary definitions should be understood to be included in the description for each term as contained in the Random House Webster's Unabridged Dictionary, second edition, each definition hereby incorporated by reference.
Moreover, for the purposes of the present invention, the term “a” or “an” entity refers to one or more of that entity; for example, “a light source” refers to one or more of those light sources. As such, the terms “a” or “an”, “one or more” and “at least one” can be used interchangeably herein.
All numeric values herein are assumed to be modified by the term “about”, whether or not explicitly indicated. For the purposes of the present invention, ranges may be expressed as from “about” one particular value to “about” another particular value. When such a range is expressed, another embodiment includes from the one particular value to the other particular value. The recitation of numerical ranges by endpoints includes all the numeric values subsumed within that range. A numerical range of one to five includes for example the numeric values 1, 1.5, 2, 2.75, 3, 3.80, 4, 5, and so forth. It will be further understood that the endpoints of each of the ranges are significant both in relation to the other endpoint, and independently of the other endpoint. When a value is expressed as an approximation by use of the antecedent “about,” it will be understood that the particular value forms another embodiment. The term “about” generally refers to a range of numeric values that one of skill in the art would consider equivalent to the recited numeric value or having the same function or result. Similarly, the antecedent “substantially” means largely, but not wholly, the same form, manner or degree and the particular element will have a range of configurations as a person of ordinary skill in the art would consider as having the same function or result. When a particular element is expressed as an approximation by use of the antecedent “substantially,” it will be understood that the particular element forms another embodiment.
Thus, the applicant(s) should be understood to claim at least: i) each of the weapon sight light emission devices herein disclosed and described, ii) the related methods disclosed and described, iii) similar, equivalent, and even implicit variations of each of these devices and methods, iv) those alternative embodiments which accomplish each of the functions shown, disclosed, or described, v) those alternative designs and methods which accomplish each of the functions shown as are implicit to accomplish that which is disclosed and described, vi) each feature, component, and step shown as separate and independent inventions, vii) the applications enhanced by the various systems or components disclosed, viii) the resulting products produced by such systems or components, ix) methods and apparatuses substantially as described hereinbefore and with reference to any of the accompanying examples, x) the various combinations and permutations of each of the previous elements disclosed.
The background section of this patent application provides a statement of the field of endeavor to which the invention pertains. This section may also incorporate or contain paraphrasing of certain United States patents, patent applications, publications, or subject matter of the claimed invention useful in relating information, problems, or concerns about the state of technology to which the invention is drawn toward. It is not intended that any United States patent, patent application, publication, statement or other information cited or incorporated herein be interpreted, construed or deemed to be admitted as prior art with respect to the invention.
The claims set forth in this specification are hereby incorporated by reference as part of this description of the invention, and the applicant expressly reserves the right to use all of or a portion of such incorporated content of such claims as additional description to support any of or all of the claims or any element or component thereof, and the applicant further expressly reserves the right to move any portion of or all of the incorporated content of such claims or any element or component thereof from the description into the claims or vice-versa as necessary to define the matter for which protection is sought by this application or by any subsequent application or continuation, division, or continuation-in-part application thereof, or to obtain any benefit of, reduction in fees pursuant to, or to comply with the patent laws, rules, or regulations of any country or treaty, and such content incorporated by reference shall survive during the entire pendency of this application including any subsequent continuation, division, or continuation-in-part application thereof or any reissue or extension thereon.
The claims set forth in this specification are further intended to describe the metes and bounds of a limited number of the preferred embodiments of the invention and are not to be construed as the broadest embodiment of the invention or a complete listing of embodiments of the invention that may be claimed. The applicant does not waive any right to develop further claims based upon the description set forth above as a part of any continuation, division, or continuation-in-part, or similar application.
Claims
1. A method of providing an aiming indica for a sighting device, comprising the steps of:
- a) transmitting an amount of light within a light conductive member;
- b) emitting an amount of light from a light emitting element; and
- c) spreading said amount of light transmitted within said light conductive member and said amount of light emitted by said light emitting element to substantially fill an illumination field to provide said aiming indicia for said sighting device.
2. The method of providing an aiming indica for a sighting device of claim 1, further comprising the step of convergently reflecting said amount of light conducted through said light conductive member to fill an illumination field.
3. The method of providing an aiming indica for a sighting device of claim 2, further comprising the step of divergently refracting said amount of light emitted by said light emitting element to fill said illumination field.
4. The method of providing an aiming indica for a sighting device of claim 3, wherein said steps of claims 2 and 3 uniformly spread said amount of light transmitted within said light conductive member and said amount of light emitted by said light emitting element to substantially fill an illumination field.
5. The method of providing an aiming indica for a sighting device of any one of claim 1, 2, 3, or 4, further comprising the step of generating a viewing angle for each of said amount of light transmitted within said light conductive member convergently reflected to substantially fill said illumination field and said amount of light emitted by said light emitting element divergently refracted to substantially fill said illumination field in the range of about 15 degrees and about 25 degrees.
6. The method of providing an aiming indica for a sighting device of claim 5, further comprising the step of generating viewing angles of said amount of light transmitted within said light conductive member convergently reflected to substantially fill said illumination field and said amount of light emitted by said light emitting element divergently refracted to substantially fill said illumination field which differ by 5 degrees or less.
7. The method of providing an aiming indica for a sighting device of claim 1, further comprising the step of transmitting an amount of fluorescent light within said light conductive member, said fluorescent light emitted by one or more dopants contained in said light conductive member.
8. The method of providing an aiming indica for a sighting device of claim 7, further comprising the step of activating said one or more dopants contained in said light conductive member with said amount of light incident upon an external surface of said light conductive member.
9. The method of providing an aiming indica for a sighting device of claim 8, further comprising the step of activating said one or more dopants contained in said light conductive member with said amount of light emitted by said light emitting element.
10. A sighting device, comprising:
- a) a light conductive member;
- b) a lens coupled to said light conductive member; and
- c) a light emitting element disposed inside of the assembly of said lens coupled to said light conductive member, said lens adapted to spread each of an amount of light transmitted within said light conductive member and an amount of light emitted by said light emitting element over an illumination field to provide an aiming indicia.
11. The sighting device of claim 10, where said lens spreads each of said amount of light transmitted within said light conductive member and said amount of light emitted by said light emitting element to substantially fill said illumination field to provide said aiming indicia.
12. The sighting device of claim 10, wherein said lens substantially uniformly spreads each of said amount of light transmitted within said light conductive member and said amount of light emitted by said light emitting element to substantially fill the said illumination field to provide an aiming indicia.
13. The sighting device of claim 10, further comprising one or more dopants contained in said light conductive member which fluoresce in response to said light transmitted within said light conductive member.
14. The sighting device of claim 13, wherein said amount of light transmitted within said light conductive member falls within a spectrum selected from the group consisting of: a visible spectrum, an ultraviolet spectrum, and an infrared spectrum, or combinations thereof.
15. The sighting device of claim 10, wherein said one or more dopants contained in said light conductive member fluoresce in response to said amount of light emitted by said light emitting element.
16. The sighting device of claim 15, wherein said amount of light emitted by said light emitting element is selected from the group consisting of: light emitting diodes, luminescent paint, chemoluminescent elements, electroluminescent conductors, or radioluminescent elements, or combinations thereof.
17. The sighting device of claim 16, wherein said light emitting element comprises a radioluminescent element.
18. The sighting device of claim 17, wherein said radioluminescent element comprises a radionuclide which emits beta radiation and a dopant which fluoresces in response to said beta radiation.
19. The sighting device of claim 18, wherein said radionuclide comprises an amount of tritium.
20. The sighting device of claim 10, wherein said lens couples in coaxial relation to said light conductive member.
21. The sighting device of claim 20, further comprising a chamber coaxially disposed inside of said assembly of said lens coupled to said light conductive member.
22. The sighting device of claim 21, wherein said light emitting element disposed inside of said chamber coaxially aligns with the assembly of said lens coaxially coupled to light conductive member.
23. The sighting device of claim 22, wherein said chamber terminates in an emitted light refraction surface adapted to divergently refract said amount of light emitted by said light emitting element to substantially fill said illumination field.
24. The sighting device of claim 23, wherein said chamber comprises a cylindrical bore which terminates in said emitted light refraction surface having the form of a cone.
25. The sighting device of claim 24, wherein said lens has an external surface adapted to convergently reflect said amount of light transmitted within said light conductive member to substantially fill said illumination field.
26. The sighting device of claim 25, wherein said lens spreads said amount of light transmitted within said light conductive member and said amount of light emitted by said light emitting element substantially uniformly over said illumination field regardless of ambient light conditions.
27. The sighting device of claim 24, wherein said cylindrical bore extends coaxially substantially the length of the assembly, said light emitting element disposed in said cylindrical bore distal from said lens.
28. The sighting device of claim 22, wherein said chamber has location inside the assembly entirely inside said lens.
29. The sighting device of claim 22, wherein said chamber has a location in the assembly entirely inside said light conductive member.
30. The sighting device of claim 22, wherein said chamber has a location in the assembly in part inside said lens and in part inside said light conductive member.
31. The sighting device of claim 30, wherein said lens and said light emitting member each provide matable parts which couple in fixed mated engagement to produce the assembly.
32. The sighting device of claim 22, wherein the assembly of said lens and said light emitting member has a first portion and a second portion, said first portion and said second portion having substantially similar cross sectional area, said chamber having a location inside of said second portion.
33. The sighting device of claim 22, wherein the assembly of said lens and said light emitting member has a first portion and a second portion, said first portion having a lesser cross sectional area than said second portion, said chamber having a location inside of said second portion.
34. The sighting device of claim 10, wherein said lens has an external surface adapted to convergently reflect said amount of light transmitted within said light conductive member to substantially fill said illumination field, and wherein said lens has an emitted light refraction surface adapted to divergently refract said amount of light emitted by said light emitting element to substantially fill said illumination field.
35. The sighting device of claim 34, wherein said emitted light divergently refracted and said amount of light convergently reflected each have substantially the same viewing angle in relation to the longitudinal axis of the assembly of said lens and said light conductive member.
36. The sighting device of claim 35, wherein said viewing angle of said emitted light divergently refracted and said viewing angle of said amount of light convergently reflected differ by five degrees or less.
37. The sighting device of claim 36, wherein each said viewing angle falls within a range of about 15 degrees and about 25 degrees.
38. The sighting device of claim 37, wherein each said viewing angle is selected from the range consisting of: about 15 degrees and about 25 degrees is selected from the group consisting of: about 15 degrees to about 17 degrees, about 16 degrees to about 18 degrees, about 17 degrees to about 19 degrees, about 18 degrees to about 20 degrees, about 19 degrees to about 21 degrees, about 20 degrees to about 22 degrees, about 21 degrees to about 23 degrees, about 22 degrees to about 24 degrees, and about 23 degrees to about 25 degrees.
39. The sighting device of claim 10, further comprising an opaque layer coupled to the external surface of said light emitting element which allows emitted light egress only from each of a pair of opposed ends of said light emitting element.
40. The sighting device of claim 39, further comprising a reflector element disposed in relation to a first of said pair of opposed ends of said light emitting element to reflect emitted light toward a second of said pair of opposed ends.
41. A method of producing a sighting device, comprising the steps of:
- a) providing a light conductive member;
- b) coupling a lens to said light conductive member; and
- c) disposing a light emitting element inside of the assembly of said lens coupled to said light conductive member, said lens adapted to spread each of an amount of light transmitted within said light conductive member and an amount of light emitted by said light emitting element over an illumination field to provide an aiming indicia.
42. The method of producing a sighting device of claim 41, further comprising the step of configuring said lens to spread each of said amount of light transmitted within said light conductive member and said amount of light emitted by said light emitting element to substantially fill said illumination field to provide said aiming indicia.
43. The method of producing a sighting device of claim 42, further comprising the step of configuring said lens to substantially uniformly spread each of said amount of light transmitted within said light conductive member and said amount of light emitted by said light emitting element to substantially fill the said illumination field to provide an aiming indicia.
44. The method of producing a sighting device of claim 42, further comprising the step of configuring said lens to convergently reflect said amount of light transmitted within said light conductive member to substantially fill said illumination field and to divergently reflect said amount of light emitted by said light emitting element to substantially fill said illumination field.
45. The method of producing a sighting device of any one of claim 41, 42, 43 or 44, further comprising the step of configuring said lens to provide a viewing angle of said amount of light transmitted within said light conductive member convergently reflected to substantially fill said illumination field and said amount of light emitted by said light emitting element divergently refracted to substantially fill said illumination field in the range of about 15 degrees and about 25 degrees.
46. The method of producing a sighting device of claim 45, further comprising the step of configuring said lens to provide viewing angles of said amount of light transmitted within said light conductive member convergently reflected to substantially fill said illumination field and said amount of light emitted by said light emitting element divergently refracted to substantially fill said illumination field which differ by 5 degrees or less.
47. The method of producing a sighting device of claim 41, further comprising the step of disposing said lens in coaxial relation to said light conductive member in the assembly.
48. The method of producing a sighting device of claim 47, further comprising the step of disposing said light emitting element inside of the assembly in coaxial relation to said lens and to said light conductive member.
49. The method of producing a sighting device of claim 48, further comprising the step of coaxially disposing a chamber inside of the assembly of said lens coupled to said light conductive member.
50. The method of producing a sighting device of claim 49, further comprising the step of disposing said light emitting element inside of said chamber to coaxially align said light emitting element in the assembly of said lens coupled to light conductive member.
51. The method of producing a sighting device of claim 50, further comprising the step of configuring said chamber to terminate in a emitted light refraction surface adapted to divergently refract said amount of light emitted by said light emitting element to substantially fill said illumination field.
52. The method of producing a sighting device of claim 51, further comprising the step of configuring said chamber as a cylindrical bore in the assembly and configuring said emitted light refraction surface as a cone which tapers at an angle which acts to divergently refract said amount of emitted light to fill said illumination field.
53. The method of producing a sighting device of claim 52, further comprising the step of coaxially extending said cylindrical bore substantially the length of the assembly and disposing said light emitting element inside said cylindrical bore distal from said lens.
54. The method of producing a sighting device of claim 50, further comprising the step of locating said chamber inside the assembly entirely inside of said light conductive member.
55. The method of producing a sighting device of claim 50, further comprising the step of locating said chamber inside the assembly entirely inside of said lens.
56. The method of producing a sighting device of claim 50, further comprising the step of locating said chamber inside the assembly in part inside of said light conductive member and in part inside lens.
57. The method of producing a sighting device of claim 56, further comprising the step of configuring each of said lens and said light conductive member to mate upon forcible urging in fixed coaxial relation.
58. The method of producing a sighting device of claim 50, further comprising the step of configuring the assembly of said lens and said light emitting member to provide a first portion and a second portion, said first portion and said second portion having substantially similar cross sectional area, said chamber having disposed inside of said second portion.
59. The method of producing a sighting device of claim 50, further comprising the step of configuring the assembly of said lens and said light emitting member to provide a first portion and a second portion, said first portion having a lesser cross sectional area than said second portion, said chamber disposed inside of said second portion.
60. The method of producing a sighting device of claim 41, further comprising the step of covering said light emitting element with an opaque layer which allows emitted light egress only from each of a pair of opposed ends of said light emitting element.
61. The method of producing a sighting device of claim 42, further comprising the step of disposing a reflector in relation to a first of said pair of opposed ends to reflect emitted light toward a second of said pair of opposed ends.
62. The method of producing a sighting device of claim 41, further comprising the step of containing one or more dopants in said light conductive member which fluoresce in response to said light transmitted within said light conductive member.
63. The method of producing a sighting device of claim 62, further comprising the step of containing one or more dopants in light conductive member which fluoresce in response to said amount of light emitted by said light emitting element.
64. The method of producing a sighting device of claim 63, further comprising the step of providing said light emitting element as a radioluminescent element in the form of a radionuclide which emits beta radiation and a dopant which fluoresces in response to said beta radiation.
65. The method of producing a sighting device of claim 64, further comprising the step of encapsulating an amount of tritium to provide said radionuclide and disposing said dopant which fluoresces in response to said beta radiation of said amount of tritium proximate a capsule wall.
66. An illuminated sighting device, comprising:
- a) a light emission assembly including: i) an light conductive member having a length disposed between a first end and second end which receives an amount of light on an external surface and transmits a portion of said amount of light to said first end and second end; ii) a light emitting element having a location inside of said light conductive member and which emits an amount of light toward said first end and said second end of light conductive member; iii) a lens configured to define an illuminated field having a fixed area and substantially uniformly spread said amount of light transmitted within said light conductive member and said amount of light emitted by said light emitting element over said illuminated field to provide an aiming indicia.
Type: Application
Filed: Dec 16, 2022
Publication Date: Apr 27, 2023
Applicant: HiViz, LLC (Laramie, WY)
Inventors: Phillip D. Howe (Laramie, WY), Richard A. Moore (Fort Collins, CO), Richard K. Herndon (Fort Collins, CO)
Application Number: 18/083,318