ADJUSTABLE COVER FOR USE WITH FIBER OPTIC BAND MOUNTED ATOP AN ADVANCED COMBAT OPTICAL GUNSIGHT IN ORDER TO ADJUST INTENSITY OF ILLUMINATED RETICLE
An attachable and length adjustable cover for use with a fiber optic light receptor band associated with an optical gunsight for varying an amount of light which is permitted to enter the fiber optic of the rifle scope and be communicated to the associated reticle display. A body overlays the fiber optic band and includes a plurality of telescopically adjustable sections which overlays at least a corresponding portion of the optic band and which is movable in at least one direction to vary an exposed portion of the band which is available for collecting ambient light.
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The present application claims the priority of U.S. Ser. No. 61/530,453 filed Sep. 2, 2011.
BACKGROUND OF THE INVENTION1. Field of the Invention
The present invention teaches an attachable and length adjustable cover for use with a fiber optic light receptor band associated with an advanced combat optical (ACOG) gunsight and which modulates an amount of light which is permitted to enter the fiber optic of the rifle scope and be communicated to the associated reticle display.
2. Background of the Relevant Art
The prior art is well documented with weapon mounted optical accessories such as including what is known as an advanced combat optical gunsight (ACOG) which exhibits an overhead exposed optical fiber light collecting band. One known type of fiber optic band is produced by Trijicon as part of its ACOG gunsight and operates to adjust the brightness level and contrast of the internal reticle corresponding to available light conditions. This is described in fair detail below with reference to
Given further the exceptional light gathering characteristics of such optical fiber collecting bands, they have a tendency of providing too much light to the interior reticle display (this defined as the visible crosshairs of fine lines or fibers in the eyepiece of the sight), in particular during instances of brighter nighttime conditions, including such as a full moon, the result being whiteout conditions being created within the reticle display. One attempt to address this problem has been to place a piece of tape, such as a black electrical tape, over the optical band and in order to reveal only a portion which is guessed to correspond to that necessary for providing adequate light gathering functionality. Shortcomings associated with this include both the inconvenience of having to carry an additional item around, the necessity of trial and error in determining how much tape to use and where to place it, as well as the tendency of the tape to fall off after any prolonged use.
SUMMARY OF THE PRESENT INVENTIONThe present invention discloses a number of variations of attachable and length adjustable covers for use with a fiber optic light receptor band associated with an optical gunsight, for varying an amount of light which is permitted to enter the fiber optic of the rifle scope and be communicated to the associated reticle display. The cover includes a body overlaying the fiber optic band.
In one variant, the body includes any plurality of telescoping sections which overlays a corresponding portion of the optic band and which is movable in at least one direction to vary an exposed portion of the band which is available for collecting ambient light. The telescoping sections can include any of opaque or selectively light transmitting composition. As is further depicted, each of the telescoping portions exhibits, in cross section, an arcuate configuration closely dimensioned to overlay the fiber optic band.
A grasping tab can extend from an outermost end of an end-extendable shade portion and facilitates a desired degree of shade covering over the fiber optic band. Other features include an elongated and one piece clip on design containing the plurality of telescoping shade portions, the body including at least one of side and end positioned tabs for facilitating engagement to corresponding locations on the gunsight. The clip further exhibits inner engagement tabs biasing against outer corresponding edges of upper ears of the gunsight and between which is seated the fiber optic band.
In a further variant, a thin filament skirt integrally extends from the body and is adapted to being sandwiched underneath an adjustor knob cap associated with the optical gunsight. In another variant, an arcuate contoured covering shield exhibits an end rotatable thumb screw supported within the body and being selectively actuated to reveal varying amounts of the underside located fiber optic band.
Additional variants include an LED element built into a location associated with the body for assisting in illuminating the fiber optic band, with a power component being in communication with the LED element. The power component is adapted to securing to a side location of the optical gunsight, a cable or line communicating the power component to the LED element.
In a further variant associated with a reverse situation of not enough available ambient light for communicating to the interior reticle, a portable power supply can further be provided and which includes a battery activated by the user triggering an on/off button, this in order to illuminate the LED for providing any desired degree of artificial light input to the fiber optic band. The power supplying component can be integrally formed with an extending side location of the body such that it optionally may, but need not, be separately secured to the proximate side surface of the optical gunsight.
Reference will now be made to the attached drawings, when read in combination with the following detailed description, wherein like reference numerals refer to like parts throughout the several views, and in which:
As previously described, the present invention discloses a variety of attachable and length adjustable cover designs for use with a fiber optic light receptor band associated with an advanced combat optical (ACOG) gunsight, such replacing the prior art technique of applying an adhesive (black) tape such as an electrical tape over part or all of the fiber optic band and in order to modulate an amount of light which is permitted to enter the fiber optic of the rifle scope and be communicated to the associated reticle display. Such use of prior art tape has been found to be unworkable in most environments as the performance of the tape degrades, requiring constant replacement. Conversely, leaving the tape in place for an extended period of time will result in unwanted adhesive residue remaining over the fiber optic band following eventual removal of the tape.
With reference now to each of
Without providing an overly detailed explanation of the existing technology and features associated with the ACOG gunsight, such as are known in the art, these include exterior windage and elevation adjustments for a fixed magnified scope (such as on the order of 4×-6× magnification) and which utilizes the fiber optical band for collecting ambient light. The fluorescent fiber optical gathering system causes an internally located reticle to glow (such as brightly during the day and less brightly in the evening or nighttime). A glow in the dark element such as tritium is also incorporated into the gunsight 2 such as in order to illuminate the aiming triangle, dot, or crosshairs in low or no ambient light conditions and in order to provide more effective sighting in such conditions.
As is further known, the optical fiber band 4 are well known for use as fiberscopes for imaging applications and typically exhibit a generally parabolic shape collector for tracking and concentrating ambient (sun) light to its inner core for transmission to the sight reticle. The reticle is further defined as a net of fine lines or fibers located within the eyepiece of the sighting device and which are illuminated to a degree corresponding to the amount of light collected and transmitted from the fiber optic band 4.
The prior art tape previously referenced above is a conditional response to such as daylight conditions in which a light gathering capability of a fiber optic band overly stimulates the sight reticle to glow to a blinding (whiteout) degree in which effective sighting is compromised as a result of the light bleeding beyond the reticles. In such conditions, the desire to partially cover some or all of the fiber optic band 4 is desirable in order to reduce the amount of light delivered to the reticle display and so that it glows within an acceptable and optimal range for comfortable sight visualization by the user.
Given the above, and proceeding to
While not limited to any specific material, one non-limiting variant envisions each of the shade sections 14-18 exhibiting a generally opaque composition, this enabling a degree of ambient light reaching the fiber band 4 to be effectively modulated dependent upon the various positions established by the overlapping sections. Beyond the volume of light being interrupted by the individual shade sections when extended over the fiber optic band 4, it is further appreciated that a given degree of overlapping coverage established between specified subsections, this further given their individual opaque (partially translucent) consistency and which may further allow any subset volume of ambient light to be collected. As a result, fine tuning or modulation of the light collected and directed to the interior sight reticle is established by a degree of overlapping contact between the shade sections, and as a potentially independent or interdependent variable to a portion of the fiber optic band either covered or uncovered by the extension/retraction of the shade sections.
Additional features incorporated into the FLA adjustable shade include any suitable interconnecting relationship (not shown) established between the respective sections 14-18, these facilitating extension/retraction without the incidence of separation. Further, the construction of the shade can be such that a largest base component, e.g. that depicted at 14, can be anchored, clipped or otherwise affixed to the top surface of the sight (including its spaced ears 10 and 12) proximate an end location of the fiber optic band 4 and so that the remaining telescoping sections 16 and 18 can be extensible therefrom in order to cover any portion of the band 4.
Alternatively, an outer fixed and elongated frame (not illustrated in this variant) can be provided in perimeter surrounding fashion around the fiber optic band 4 and which guides or seats the individual shade components 14-18 in their various incrementally adjustable positions. It is also understood that additional features, such as a grasping tab 20 extending from an outermost end of an end-extendable shade portion 18 can facilitate a desired degree of shade covering over the fiber optic band 4, and that maintaining a desired incremental adjusted position can be further enhanced by the incorporation of any suitable ratchet or frictionally enhanced engagement between the opposing surfaces of the individual portions 14-18.
Referring further to
The downward looking view of
As further shown, selected shade portion 28 can function as a base component anchored (see pin 40) at an end of the interior frame defined opening of the clip body 22, and relative to which the remaining shade components 30-36 are selectively expanded/retracted in order to define a range of overlapping optic band coverage. Finally,
Referring now to
As described in earlier variants, any combination of flex tabs (see as exemplary shown at 58 and 60) can be defined along (or integrally extend from) the undersides and forward end of the covering housing in order to snap-engage in place over the existing ACOG gunsight 2 in a fashion such that it secures to the upper extending ears 10 and 12. Additional retaining features include depiction of an integrally extending skirt, such as shown by a thin filament material 62. As again shown in
Proceeding to
As understood, the shield 72 is rotationally supported around the band and relative to the supporting structure of the outer ACOG housing (see as further shown at 76 in
Finally,
Having described my invention, other and additional preferred embodiments will become apparent to those skilled in the art to which it pertains, and without deviating from the scope of the appended claims.
Claims
1. An attachable and length adjustable cover for use with a fiber optic light receptor band associated with an optical gunsight for varying an amount of light which is permitted to enter the fiber optic of the rifle scope and be communicated to the associated reticle display, comprising:
- said cover comprising a body overlaying the fiber optic band, said body having at least one section which overlays the optic band and which is movable in at least one direction to vary an exposed portion of the band which is available for collecting ambient light.
2. The cover as described in claim 1, further comprising a plurality of individual and telescoping shade portions.
3. The cover as described in claim 2, said telescoping portions each further comprising at least one of an opaque or selectively light transmitting composition.
4. The cover as described in 2, each of said telescoping portions exhibiting, in cross section, an arcuate configuration closely dimensioned to overlay the fiber optic band.
5. The cover as described in claim 2, further comprising a grasping tab extending from an outermost end of an end-extendable shade portion and facilitating a desired degree of shade covering over the fiber optic band.
6. The cover as described in claim 2, further comprising an elongated and one piece clip on design containing said plurality of telescoping shade portions, said body including at least one of side and end positioned tabs for facilitating engagement to corresponding locations on the gunsight.
7. The cover as described in claim 6, said clip further comprising inner engagement tabs biasing against outer corresponding edges of upper ears of the gunsight and between which is seated the fiber optic band.
8. The cover as described in claim 1, further comprising a thin filament skirt integrally extending from said body and which is adapted to being sandwiched underneath an adjustor knob cap associated with the optical gunsight.
9. The cover as described in claim 1, further comprising an arcuate contoured covering shield with end rotatable thumb screw supported within said body and being selectively actuated to reveal varying amounts of the underside located fiber optic band.
10. The cover as described in claim 1, further comprising an LED element built into a location associated with said body for assisting in illuminating the fiber optic band, a power component in communication with the LED element.
11. The cover as described in claim 10, said power component adapted to securing to a side location of the optical gunsight, a cable or line communicating the power component to the LED element.
12. The cover as described in claim 10, further comprising a power supply including a battery activated upon a user triggering an on/off button in order to illuminate the LED for providing any desired degree of artificial light input to the fiber optic band.
13. The cover as described in claim 10, said power supplying component being integrally formed with an extending side location of the body such that it optionally may, but need not, be separately secured to the proximate side surface of the optical gunsight.
14. An attachable and length adjustable cover for use with a fiber optic light receptor band associated with an optical gunsight for varying an amount of light which is permitted to enter the fiber optic of the rifle scope and be communicated to the associated reticle display, comprising:
- said cover comprising a body overlaying the fiber optic band, said body having a plurality of individual and telescoping shade portions which overlay the optic band and which are inter-movable in at least one direction to vary an exposed portion of the band available for collecting ambient light; and
- an elongated and one piece clip on design containing said plurality of telescoping shade portions, said body including at least one of side and end positioned tabs for facilitating engagement to corresponding locations on the gunsight.
15. The cover as described in claim 14, said telescoping portions each further comprising at least one of an opaque or selectively light transmitting composition.
16. The cover as described in 14, each of said telescoping portions exhibiting, in cross section, an arcuate configuration closely dimensioned to overlay the fiber optic band.
17. The cover as described in claim 14, further comprising a grasping tab extending from an outermost end of an end-extendable shade portion and facilitating a desired degree of shade covering over the fiber optic band.
18. An attachable and length adjustable cover for use with a fiber optic light receptor band associated with an optical gunsight for varying an amount of light which is permitted to enter the fiber optic of the rifle scope and be communicated to the associated reticle display, comprising:
- said cover comprising a body overlaying the fiber optic band, said body having at least one section which overlays the optic band and which is movable in at least one direction to vary an exposed portion of the band which is available for collecting ambient light; and
- a thin filament skirt integrally extending from said body and which is adapted to being sandwiched underneath an adjustor knob cap associated with the optical gunsight
19. The cover as described in claim 18, further comprising an arcuate contoured covering shield with end rotatable thumb screw supported within said body and being selectively actuated to reveal varying amounts of the underside located fiber optic band.
20. The cover as described in claim 18, further comprising an LED element built into a location associated with said body for assisting in illuminating the fiber optic band, a power component in communication with the LED element.
Type: Application
Filed: Sep 4, 2012
Publication Date: Mar 7, 2013
Applicant: ELITE ARMS INC. (Dexter, MI)
Inventor: Scott Eric Watkins (Portage, MI)
Application Number: 13/602,948
International Classification: F41G 1/38 (20060101);