Abstract: Glasses (e.g., goggles) for tactical use comprise a single lens. The single lens has a substrate, a quarter-wave retarder, and a linear polarizer. The substrate provides impact protection. The quarter-wave retarder and the linear polarizer provide glare reduction without causing blackout of screens having linear polarization.

Abstract: An optical filter includes a first film having an upper surface, a lower surface, a first side, and a second side. A second film is included that has an upper surface, a lower surface, a first side, and a second side. A third film is included that has an upper surface, a lower surface, a first side, and a second side. The first side of the first film is connected to the second side of the second film. The first side of the second film is connected to the second side of the third film. The lower surface of the first film is optically adjacent to the upper surface of the second film. The lower surface of the second film is optically adjacent to the upper surface of the third film. Methods of manufacture and use are also described.

Abstract: A face and eye covering device includes a face cover configured for covering the nose and mouth of a wearer. The face cover is air permeable to allow the passage of air therethrough to facilitate breathing when worn over the wearer's nose or mouth. An eye shield is coupled to the face cover. The eye shield includes a lens and a lens protector releasably coupled to the lens. At least a portion of the lens and lens protector are transparent to allow visual perception therethrough.

Abstract: There is provided a goggle assembly (1) comprising: a frame; an inner lens retained by the frame (5); an outer lens (3) having a first relaxed configuration and a second pre-tensioned configuration; and attachment elements (7) releasably retaining the outer lens in its second configuration in spaced relation in front of the inner lens.

Abstract: A face and eye covering device includes a face cover configured for covering the nose and mouth of a wearer. The face cover is air permeable to allow the passage of air therethrough to facilitate breathing when worn over the wearer's nose or mouth. An eye shield is coupled to the face cover. The eye shield includes a lens and a lens protector releasably coupled to the lens. At least a portion of the lens and lens protector are transparent to allow visual perception therethrough.

Abstract: External ocular shields for protecting a patient's eyes from medical treatment radiation energy such as a laser during a medical procedure. Each shield has an external surface that absorbs energy that hits the shield. The shields are connected to each other by a nose piece, and the nose piece is connected to each shield by a mounting means. The mounting means are positioned perpendicular to the shields and parallel to each other so that the nose piece can pivot upward towards the user's forehead and downward towards the user's chin without altering the fit of the shields over the user's eyes.

Abstract: A pair of swimming goggles includes left and right frames made of hard material, a head strap and a connection frame connecting the left and right frames and made of soft material. Supporters respectively extend from the inner ends of the peripheral surfaces of the frames opposite to the fastener base. A fill zone is defined in each of the inner surfaces of the frames opposite the supporters. A head strap is connected to the fastener base of each of the left and right frames. The connection frame includes a nose bridge and left and right pads connecting with opposite ends of the nose bridge. Receiving recesses are respectively defined in the junctions between the nose bridge and the pads for respectively receiving the supporters therein. Junction portions are respectively formed at the left and right pads corresponding to the fill zone of each of the left and right frames for being filled in the fill zone.

Abstract: Antiglare system for a crash helmet with an outer and an inner helmet shell that has an eyeport that can be closed by a visor and that can be partially covered by a sunshade, wherein the sunshade has at least one first antiglare module and covers the eyeport in a upper region such a way that the sunshade is located above a horizontal line of sight and outside of a vertical field of vision when the wearer's head is in a relaxed, fairly upright position, and wherein the sunshade extends into the vertical field of vision when the helmet wearer's head is tilted forward.

Abstract: A helmet is particularly well suited for cold-weather use. The helmet includes a jaw shield that is detachable from a head portion. A breathing mask connects to the jaw shield via a mask adjustment mechanism that selectively axially moves the breathing mask toward and away from an inner surface of the jaw shield to precisely and accurately position the breathing mask against the nose and mouth of the helmet's wearer. A spring-loaded quick-release tinted shield is controlled by a lever that selectively raises and lowers the tinted shield. An eye shield pivotally connects to the helmet and is disposed in front of the tinted shield. An eye shield heating system on the eye shield electrically connects to the head portion of the helmet to provide electric power to the heating system.

Abstract: The glare protection device for welding applications contains an active electro-optical filter element (2) with an electronic control circuit (3). The active filter element (2) absorbs the UV-radiation up to 380 nm. An IR-plastic filter (10) is completely joined with the active electro-optical filter element by a compact adhesive layer (11) and together with it forms a single optical and mechanical unit (1) having a high transmittance in the visual region of the spectrum. The IR-plastic filter (10) contains a dye that absorbs the infrared radiation in a wavelength range of 780-1400 nm. With this, a robust, cheap and safe in operation glare protection device for various applications is created.

Abstract: A helmet is particularly well suited for cold-weather use. The helmet includes a jaw shield that is detachable from a head portion. A breathing mask connects to the jaw shield via a mask adjustment mechanism that selectively axially moves the breathing mask toward and away from an inner surface of the jaw shield to precisely and accurately position the breathing mask against the nose and mouth of the helmet's wearer. A spring-loaded quick-release tinted shield is controlled by a lever that selectively raises and lowers the tinted shield. An eye shield pivotally connects to the helmet and is disposed in front of the tinted shield. An eye shield heating system on the eye shield electrically connects to the head portion of the helmet to provide electric power to the heating system.

Abstract: A helmet is particularly well suited for cold-weather use. The helmet includes a jaw shield that is detachable from a head portion. A breathing mask connects to the jaw shield via a mask adjustment mechanism that selectively axially moves the breathing mask toward and away from an inner surface of the jaw shield to precisely and accurately position the breathing mask against the nose and mouth of the helmet's wearer. A spring-loaded quick-release tinted shield is controlled by a lever that selectively raises and lowers the tinted shield. An eye shield pivotally connects to the helmet and is disposed in front of the tinted shield. An eye shield heating system on the eye shield electrically connects to the head portion of the helmet to provide electric power to the heating system.

Abstract: An anti-glare protection device, for example a pair of welding goggles, a welding mask or a welding helmet, comprises a supporting part with a sight opening (3), an optical filter element arranged in the sight opening, and a protective plate (1), which is mounted or can be mounted on the supporting part such covering the optical filter element. For the protection of the filter element against contamination with dirt and in order to protect the wearer of the anti-glare protection device against undesirable gases, smoke and dirt, a seal (4) made out of an elastically compressible material is arranged between the supporting part and the protective plate (1) or between the filter element and the protective plate (1), which seal extends substantially around the sight opening. The seal (4) is advantageously affixed either to the supporting part, to the protective plate (1) or to the filter element.

Abstract: Antiglare system for a crash helmet with an outer and an inner helmet shell that has an eyeport that can be closed by a visor and that can be partially covered by a sunshade, wherein the sunshade has at least one first antiglare module and covers the eyeport in an upper region in such a way that the sunshade is located above a horizontal line of sight and outside of a vertical field of vision when the wearer's head is in a relaxed, fairly upright position, and wherein the sunshade extends into the vertical field of vision when the helmet wearer's head is tilted forward.

Abstract: A helmet is particularly well suited for cold-weather use. The helmet includes a jaw shield that is detachable from a head portion. A breathing mask connects to the jaw shield via a mask adjustment mechanism that selectively axially moves the breathing mask toward and away from an inner surface of the jaw shield to precisely and accurately position the breathing mask against the nose and mouth of the helmet's wearer. A spring-loaded quick-release tinted shield is controlled by a lever that selectively raises and lowers the tinted shield. An eye shield pivotally connects to the helmet and is disposed in front of the tinted shield. An eye shield heating system on the eye shield electrically connects to the head portion of the helmet to provide electric power to the heating system.

Abstract: A goggle has a replaceable plastic lens mounted in a flexible frame containing several air vents for passing external air through the goggle interior. The lens is formed of thermoplastic materials to provide spherical and cylindrical versions of the lens. The thermoplastic resins incorporate dyes which tint the lens to create a transmission curve with a broad flattened peak above a 50% transmission level and steep slopes to couple with the response characteristics of the rods of the human eye retina so as to improve contrast in very low light conditions such as night skiing under artificial light. Inlet and outlet air vents are covered by porous foam to reduce fogging in an outdoor environment.

Abstract: Face Protector with a one piece molded plastic assembly, the assembly comprised of a single plane vertically disposed and radially curved member, the radially curved member shaped to fit around a person's face, the radially curved member terminating in a reinforcing rib about its bottom and side perimeter, the radially curved member terminating at its top edge in an integral, horizontally disposed pocket shaped to fit onto the front portion of a standard baseball cap, said one piece molded assembly molded from a clear, impact resistant material such as polycarbonate, and said molded clear material being treated with an ultraviolet resisting chemical. A preferred embodiment includes wherein said clear material is tinted to reduce eyestrain.

Abstract: The present invention relates to a visor for intercepting laser light for medical treatment, which is worn by a surgical operator or an assistant in conducting a surgical operation or diagnosis using the laser light. The visor has a frame which is provided with a shield in such a manner that the shield covers at least both eyes, and the shield is a thin plastic molded article having a reflective film on its surface for reflecting the laser light. Said shield may be detachable from a visor main body. Said reflective film comprises a multi-layered vacuum deposited film made of silicon dioxide, for example.

Abstract: A protective face mask with a concavo-convex shield of methyl methacrylate that covers the wearer's entire face. A nose piece at the concave face of the shield presents laterally spaced fingers to engage the wearer's nose on opposite sides for spacing the shield from the face. Temple sidepieces hinged to the shield on opposite sides are engageable over the wearer's ears to hold the nose piece against the wearer's nose, thus securely positioning the mask on the wearer's head.

Abstract: X-ray protective eyewear is disclosed having dual lenses disposed within channels in each lens receipt area of the eyewear, the foremost lenses being transparent radiation-blocking lenses and the rearmost lenses being made of a plastic corrective or non-corrective lenses, as desired.

Abstract: A surgical mask adapted to cover the nose, mouth and eyes of the wearer is disclosed. A transparent lens component is positioned to cover the eyes of the user. A light-transmitting filter element being hingably connected to the upper edge of the transparent lens. The filter may be positioned selectively into overlapping relation of the lens to provide a filtering function or folded 180° to remove the filter from overlapping relation of the lens panel. The filter and lens panel are connected such that a degree of relative lateral movement between the components is provided whereby the filter may be moved between overlapping and non-overlapping conditions of the lens without removing the mask from the wearer.

Abstract: An improved pair of goggles capable of allowing one eye at a time to view things peripherally, which comprises: an opaque, translucent or tinted transparent front part of the goggles which fits in front of and covers the eyes of a wearer of the goggles, said front part having at least one window through which the wearer can view things by the outer periphery of the wearer's field of vision, a cover for the window which is capable of selectively covering the window or allowing the wearer to view things and a part that allows the wearer to wear the goggles.

Abstract: Eye protection is disclosed comprising a generally domed eye protector having a base and being shaped to fit over a single eye, and an attachment structure, comprising a double-sided adhesive portion of a shape corresponding to the base, an upper, releasable cover sheet and a layer release layer. The upper and lower releasable layers are removed from the adhesive layer, which is used to affix the eye protector over a user's eye.The invention is of particular use for eye protection during the use of a tanning bed, sunbed or other tanning apparatus.

Abstract: A facial sun block mask having a lens that is resistant to ultraviolet radiation. The lens is formed to protect most, if not all, of the face of the wearer. The lens is attached to a main body or visor that seat firmly against the upper forehead region of the wearer. The main body may also have vents.

Abstract: A method and a safety device for the protection of a user's eye, or other radiation sensitive system, from a pulsed radiation emitted by a radiation source by means of an electro-optical shutter used in conjunction with the radiation source. The electro-optical sutter defines the field of view of the user or of the system and is capable of being switched by an electrical voltage signal from a transparent state to an opaque state within a response time .DELTA.t.sub.r. The method comprises applying to the electro-optical shutter the electrical voltage signal at an operational time interval .DELTA.t.sub.o, prior to the emission of each radiation pulse and keeping the electro-optical shutter in its opaque state until the radiation pulse is emitted. The operational time interval .DELTA.t.sub.o is at least slightly longer than the response time .DELTA.t.sub.r so that, by the time of emission of each radiation pulse, the electro-optical shutter is in its opaque state.

Abstract: Multilayer lens particularly usable for sunglasses, having a main layer made of polycarbonate, cellulose acetate, or similar materials. A mirror reflecting layer is possibly coupled to the main layer or deposited thereon in vacuum by sublimation of appropriate substances, with the optional interposition of a layer of paint. The multilayer lens furthermore includes an outer layer that partially affects the outer surface of the lens. The lens may also include an inner antifogging layer that does not absorb moisture. This multilayer lens allows optimum vision to the user, eliminating or attenuating spurious incident rays at the lateral ends of the lens.

Abstract: A photochromatic visor for use with a crash helmet including a generally transparent plastic curved visor having an outer surface, an inner surface, and a photochromatic reagent added directly into the plastic to create a photochromatic piece, the visor further having an elongated central viewing portion and a tab integral with and extended outwards from each end thereof, the viewing portion bounded at an upper extent thereof by an upper edge and at lower extent thereof by a lower edge and with the upper edge having a radius of curvature less than that of the lower edge, and with each tab additionally including a through hole thereon and with the through holes of the tabs removably mated with visor connector sockets of a crash helmet.

Abstract: A head-mounted visor with variable transmission has at least two zones with different values of absorption of light. Should the visor be mounted on a pilot's helmet, an upper zone designed for looking at the exterior of the aircraft absorbs more light than a lower zone designed for looking at the dashboard instruments. The application is directed to helmet equipment for tasks comprising swift passages from a very bright space to a darkened space.

Abstract: Protective eyewear is provided with a visor component integrally sweeping arcuately over the bridge of the nose and over both eyes between opposed extremities that are positioned rearwardly of the outer corners of both eyes, a lens component having portions sweeping arcuately across both eyes between opposed extremities that are positioned rearwardly of the outward corners of both eyes the visor component defining an arcuate groove in which the upper profile of the lens component is seated and bonded, and a pair of temple components hinged to opposite extremities of the visor component, each of the temple components including a forward part that is hinged to the visor component, and a rearward part that telescopically engages the forward part and that presents an ear engaging portion. The configuration adjustably accommodates a wide range of wearers and adaptably serves under a wide range of conditions.

Abstract: A clear plastic visor (16) is secured to a mask (12) which is removably attachable to the face of a wearer. The visor (16) is secured to the mask (12) at bond areas (48, 50) on opposite ends of the mask (12). The visor (16) is provided with a notched keyhole (20) to allow the visor (16) to conform to contours of the face of the wearer and to prevent creasing thereof. The visor (16) is generally positioned on the mask (12) so that approximately 1/3 of the visor's depth (D) covers the mask (12). A darkened strip (22) may be added to the top edge of the mask (12) to further reduce the likelihood of glare and reflections.

Abstract: An article of protective eye wear, specifically, sunglasses which are self-buoyant is disclosed. The self-buoyant sunglasses include an elongated flexible strap having two free ends provided with fasteners joinable together to form a band which encircles the head. The strap has a cutout section in its lower longitudinal edge wall for receiving an eye shield having the shape of a thin cylindrical plate. A flap formed in the upper edge of the strap folds down behind the strap to sandwich the upper margin of the eye shield, which is fastened to the strap and flap, preferably by strips coated on both sides with a pressure sensitive adhesive. In the preferred embodiment, the strap is made buoyant by fabricating it from a low-density polyethylene foam core, the outer surface of which core has adhered thereto by flame, heat and pressure, a nylon spandex cover.

Abstract: In order to protect the eyes or other sensor, from light produced, e.g., by odern laser weapons which have extremely fast onset times and high power per pulse, a protective shutter device is provided which is based on the integrative property of such sensors. The sensor is shielded for a large proportion of the time and only exposed after a light detector associated with the protective device has assured a safe environment. The normal exposure provided is a series of rapid image-views that integrate over time within the sensor. In an eye goggles embodiment, clear vision is maintained and a fast-response variable-density "sunglass" is perceived by the wearer. Only one eye is exposed and thus at risk at any one time, and that eye only about 10% of the total time. A high-speed mechanical shutter controls the exposure experienced by the sensor.

Abstract: A removable protective cover and blackout for a lens of a face and breathing mask. The device includes a flexible fabric sheet similar in size and shape to that of a transparent viewing lens of the mask and having an elastic band sewn to the perimeter of the sheet forming a gathered elastic hem sized to fit around the lens frame of the mask. When so positioned, the main central portion of the fabric sheet is against or immediately adjacent the outer surface of the viewing lens. The fabric material for the sheet may be either totally or partially light occlusive and may also include a central aperture in alignment with a connector in the viewing lens for connection to an air intake modulator.

Abstract: A safety spectacles against laser radiation has a first frame part which is of integral construction and in which shields are integrated, which cover the area between the frame and the spectacle-wearer's face. This frame part is also drawn over the spectacle-wearer's temple area and forms temple plates. Fitted pivotably to these temple plates are side arms which are each integrated in a further plate which forms the continuation of the associated temple plate.

Abstract: An eye shield having two layers of X-radiation protective material is disclosed. X-radiation initially encounters a metalized thin layer that permits the substantial transmission of accompanying visible light yet partially diffracts, reflects, and refracts the X-radiation to decrease the amount of X-radiation passing through this metalized layer. Beneath the metalized thin layer is a lead layer that allows the passage of limited amounts of visible light yet functions to absorb effectively X-radiation. In combination, these two layers protect the eyes of a wearer from harmful X-radiation while permitting the wearer limited forward vision.

Abstract: A goggle including a unitary lens mountable about the head of a user is shown. A lens of the goggle is mounted in a frame. The lens has no nose opening and projects from near the forehead to the tip of the nose of the user. The frame of the goggle has a lower half which projects forwardly and has a nose opening in a horizontal plane to fit about the nose. Second or bottom lenses positioned in the lower half of the frame allow downward vision of the user.

Abstract: An auxiliary shielding device has a visor and an apparatus for mounting the visor to a shield of a safety helmet. The visor is approximately one-half the longitudinal height of the shield and is tinted to provide eye protection from the sun. The apparatus for mounting includes a pair of shield mounts fixed to distal ends of the shield and a pair of visor mounts fixed to distal ends of the visor. Each shield mount has a track formed therein, and each visor mount has a mechanism which links the visor mount with a corresponding shield mount, rendering the visor longitudinally slidable and anchorable across the shield.

Abstract: A transparent face shield suitable for exposure to high temperatures, which shield is composed of a pane of polycarbonate having an exterior surface and an interior surface and a layer of gold deposited as a coating in the exterior surface by vapor deposition, together with a plastic inner pane and a PTFE foil interposed between the plastic inner pane and the interior surface of the primary pane such that the inner pane lies flat relative to said the interior surface of the primary pane.

Abstract: A clear plastic visor (16) is secured to a mask (12) which is removably attachable to the face of a wearer. The visor (16) is secured to the mask (12) at bond areas (48, 50) on opposite ends of the mask (12). The visor (16) is provided with a notched keyhole (20) to allow the visor (16) to conform to contours of the face of the wearer and to prevent creasing thereof. The visor (16) is generally positioned on the mask (12) so that approximately 1/3 of the visor's depth (D) covers the mask (12). A darkened strip (22) may be added to the top edge of the mask (12) to further reduce the likelihood of glare and reflections.

Abstract: The present invention is a laser protection visor. This visor has an ellipsoidal shape. The major axis of the ellipsoid falls on the line connecting the user's eyes. The foci least as far apart as the expected interpupillary distance of the user. The visor has a modulated index of refraction reflection filter disposed thereon having a rejection bandwidth including the wavelength of the expected laser threat. The ellipsoidal shape minimizes the maximum rejection angle needed to prevent laser radiation from reaching either eye. This in turn minimizes the needed rejection bandwidth and thus increases the visual see through at other wavelengths. In the preferred embodiment the modulated index or refraction layer forming the reflection filter is formed of a holographic optical element constructed by capturing an interference pattern in a photosensitive medium.

Abstract: A spatial light modulator includes a photosensor diode and a photoemitting diode array, each having two semiconductive layers of opposite electrical polarities, and which are sandwiched together with layers of the same polarity (P or N) in electrical contact with each other. Transparent electrode layers are formed on the opposite surfaces of the photosensor diode and photoemitting diode array respectively, in electrical contact with the layers of the opposite polarity. The individual photoemitting diodes are electrically and optically isolated from each other. With a voltage applied across the electrodes which causes the photosensor diode to be reverse biased and the photoemitting diodes to be forward biased, the photoemitting diode array generates a visual display which is a reproduction of a light image incident on the photosensor diode. The photosensor diode may be replaced by a single layer of a photoconductive material.

Abstract: Protective eyewear is disclosed which comprises a sheet of transparent synthetic plastics material with means for attaching to the wearer's head with a viewing area of said sheet extending across the wearer's eyes. A protrusion extends along the top edge of the sheet, contacts the wearer's forehead in use and holds the viewing area away from the wearer's eyes. Slits are provided in the sheet to improve ventilation and the plastics material is coated with anti-fogging material to prevent misting-up. The slits also make it possible to use the protective eyewear over spectacles.

Abstract: A dual visor system enables the wearer to use the device as a conventional visor, or to lower a secondary visor to a position below the eyes to provide an aperture to reduce both direct and reflected light entering the wearer's eyes. By providing a roughened upper surface on the lower visor, reflection and glare is further reduced. Both primary and secondary visors may be formed of either opaque or translucent materials in order to either block or reduce light passage to the eyes as desired.

Abstract: An adjustable, disposable eye protector is formed from an adhesive-backed ovoid to circular shaped film segment. The conical shaped eye protectors are easy to use for reducing exposure of the eyes to incident light or other potential eye irritants. When formed from polymeric film segments having low ultraviolet (UV) transmittance, the present eye protectors are used effectively to protect eyes from harmful UV radiation.

Abstract: A visor assembly utilizes a movable eye screen which passes through a slot in a forwardly extending shade element. The light-transmissive eyescreen is adjustable to a shielding and non-shielding position, where it may be locked in position.

Abstract: Laser safety eyeglasses include two protective filters for protecting the eyes against radiation from a laser. The eyeglasses include a frame having a main body defining two rims for accommodating the respective protective filters therein. Metal shielding plates are attached on the upper side of the frame as well as at the hinge ends of both mounting arms. The shielding plates stretch across the respective free regions between the frame and the face of the user. The mounting rims in which the protective filters are received as well as their connecting bridge are at least partially made of the same metal as the shielding plates.

Abstract: An eyecup (24) for interfacing a night vision goggle (10) with the eyes of the user (12). A flexible curved eyepiece (28) including a wing (38) provides a tight seal of the periphery of the eyepiece (28) to the occular eye area of the user (12). The seal prevents light (22) emitted from the goggle (10) from escaping out of the confines of the eyecup (24). A fastening sleeve (26) is provided to secure the eyecup (24) about a flange on the goggle (10). An intermediate accordion section (40) allows compression and expansion and maintains the seal between the eyepiece (28) and the ocular eye area. An air vent hole (52) is formed in the accordion section (40) to prevent suction from occurring within the eyecup (24).

Abstract: A welding helmet is fitted with two lenses, one tinted and one relatively clear. The tinted lens is mounted forward of the eyes of the viewer and the clear lens extends obliquely away from the tinted lens towards the face of the wearer. To view the workpiece through the clear lens a wearer need only tilt the helmet without the necessity of raising his hands.

Abstract: An irreversible phototropic material consists of a plasticized matrix in which is suspended a phototropic transition metal salt and an additive which inhibits the production of haze in the phototropic material. Generally the additive is a substance which inhibits the reduction of the transition metal in the transition metal salt from a higher to a lower oxidation level. Suitable substances include chelating agents such as oxalic acid, ethylenediamine and EDTA, and oxidizing agents, such as chromium trioxide. The transition metal salt is preferably copper (II) chloride or a mixture of copper (II) chloride and bromide, while the matrix is preferably polyvinyl chloride or polyvinyl chloride/polyvinylidene chloride copolymer.These phototropic materials may be used in protective devices, such as goggles and windows, to protect objects or subjects against intense radiation.

Abstract: A frame for surrounding and holding the lens of goggles for sports comprises an upper frame member, opposite side frame members and a lower frame member which are formed integrally. A protector is provided along the front portion at least of the upper frame member of the frame.