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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 7916290 | Coaxially arranged, off-axis optical system for a sighting device or aiming device The invention is directed to a coaxially arranged, off-axis optical system for a sighting device or aiming device. It is the object of the invention to provide a possibility for constructing an optical system in such a way that the typical disadvantage with respect ... | 03/29/2011 |
| 7872747 | Reflex sight A reflex sight (10) comprises a housing (20) fitted with a proximal aperture (21) and a distal aperture (22) along an optics axis (A). It further includes a projection unit (40) reproducing the light generated by a light source ( | 01/18/2011 |
| 7355790 | Optical sight having a reticle illuminated through a non-lambertian light diffuser An optical sight includes an optical train having an optical path therethrough. The optical train typically includes an objective, a prism that receives the optical path from the objective, and an eyepiece that receives the optical path from the prism. A reticle is ... | 04/08/2008 |
| 7319557 | Fused thermal and direct view aiming sight A fused thermal and a direct view aiming sight includes an optical gun sight, a thermal sight, and a beam combiner. The optical sight generates a direct view image of an aiming point or reticle superimposed on a target scene. The thermal sight generates a monochromi... | 01/15/2008 |
| 7313871 | Archery sight An improved laser sight apparatus that is capable of identifying and impinging several different targets at varying ranges from the shooter. In the preferred embodiment, the laser sight according to the present invention includes three lasers, each of which is pre-c... | 01/01/2008 |
| 7310072 | Portable communication display device A head-mounted display system displays information via a matrix display element mounted within a housing that is positioned relative to at least eye of a user. The display is connected to a video or information source such that the user can view information or image... | 12/18/2007 |
| 7225578 | Aiming sight having fixed light emitting diode (LED) array and rotatable collimator An aiming sight includes a controller, a power supply, an LED array, and a collimator. The power supply powers the LEDs to turn-on and turn-off, and powers the collimator to rotate. The collimator rotates to different rotational positions while the controller, the p... | 06/05/2007 |
| 7224822 | System for capturing an image of the retina for identification A system for capturing an image of the retina includes an alignment system that aligns the eye along a predetermined axis of the system and at a predetermined distance from the system to illuminate a predetermined area of the retina and to capture an image thereof. ... | 05/29/2007 |
| 7175923 | Optical instrument An optical instrument which has an optical system that includes an ocular lens and a reticle located in the optical system, wherein a phosphorescence pigment is applied to a surface of the reticle facing toward the ocular lens, and light irradiated from outside thro... | 02/13/2007 |
| 7155857 | Assault rifle hand and forearm guard and method of use An assault rifle with a hand and forearm guard for protection of the user's hand and forearm. The assault rifle may be aimed from the side or on top of a barrier using an optical sensing system. ... | 01/02/2007 |
| 7158096 | Compact, head-mountable display device with suspended eyepiece assembly A compact, lightweight, head-mountable display device is provided for transmitting an image to a user's eye. The device includes a projection system including a display attached at one end to a head-mountable support fixture. An eyepiece assembly is attached to a se... | 01/02/2007 |
| 7100319 | Prismatic boresighter An optical collimator device, for use in aligning a riflescope with the bore of the rifle, is formed using a small aperture lens for viewing a reticule through a prismatic assembly. The collimator is magnetically attached to the muzzle of the rifle, and when a targe... | 09/05/2006 |
| 7089698 | Method and apparatus for charging efflorescent material utilizing ultra violet light This invention provides method of rapidly charging a glow-in-the-dark material utilizing an ultra violet emitting LED in portable form to produce a long lasting illuminating effect. The method includes providing a structure having a glow-in-the-dark material incorpo... | 08/15/2006 |
| 7058093 | Q-switched, cavity dumped laser systems for material processing This disclosure discusses techniques for obtaining wavelength selected simultaneously super pulsed Q-switched and cavity dumped laser pulses utilizing high optical damage threshold electro-optic modulators, maintaining a zero DC voltage bias on the CdTe electro-opti... | 06/06/2006 |
| 7039079 | Pulsed COlaser including an optical damage resistant electro-optical switching arrangement A laser includes a gain medium located in a laser resonator. The gain medium generates plane polarized radiation plane polarized in a first polarization orientation. An electro-optical switch is located in the resonator. When the switch is activated the polarization... | 05/02/2006 |
| 7001030 | System, method, and apparatus for improving the stealth capability of an optical instrument A tube-mounted inclined optical flat for improving the stealth capability of an optical aperture is disclosed. The optical flat has a light-absorbing finish on its rear surface, and is mounted in front of existing instrument optics. The light from the scene being vi... | 02/21/2006 |
| 6978569 | Tilt indicator for firearms A tilt indicator for use on a firearm includes a signal to indicate if the firearm is level or out of level. The signal is located to be viewed by a user via the user's peripheral vision and his secondary concentration so the user can maintain his primary concentrat... | 12/27/2005 |
| 6967775 | Zoom dot sighting system The present invention relates to an improved off-axis optical sighting system for a weapon or the like to provide a means to infinitely vary the size of the dot image seen by the user's eye. ... | 11/22/2005 |
| 6965483 | Imaging system comprising a concave mirror The invention concerns a system for achieving an optical image of an object (136), and/or for achieving optical collimation (137) of light from a light source (130), comprising a concave mirror (131: 134), the surface normal of which form... | 11/15/2005 |
| 6937819 | Optical viewing system and adaptor therefor An optical viewing system includes first, second and third image modifying devices together with an adaptor assembly for connecting the image modifying devices together. The adaptor assembly has first and second clamping portions. The first clamping portion is conne... | 08/30/2005 |
| 6927907 | Viewing device A reference plate is situated on an optical axis of an eyepiece. The reference plate includes a first glass plate and a second glass plate. One surface of the first glass plate and one surface of the second glass plate are bonded. Cross hairs are formed on the bonde... | 08/09/2005 |
| 6519889 | Bright point sight A reflection sight with at least one lens arranged on the object side and bearing a partially reflecting layer, wherein the lens bearing the partially reflecting layer is arranged perpendicular to the mid-axis of the reflection sight.... | 02/18/2003 |
| 6516551 | Optical sight with switchable reticle An optical sight for a photocamera viewfinder or for an aiming device of a firearm comprises a combination of a light emitting diode (LED) with a plurality of reticle patterns applied onto the surface of the LED and selectively illuminated by connecting v... | 02/11/2003 |
| 5594584 | Dot sighting device A dot sighting device comprises a lens-shaped transparent objective element with convex and concave surfaces, the convex surface extending outwardly toward a target and the concave surface extending toward a user's eye. The concave surface has a first cen... | 01/14/1997 |
| 5577326 | Optical sight arrangement for a firearm A red dot optical sight apparatus for a firearm having an optical element and a light emitting diode disposed at the focal point of the optical element, in which at least the optical element is pivotal between a lowered, inoperative position and a raised,... | 11/26/1996 |
| 5493450 | Sighting instrument An electronic light dot reticle sight (10) for a firearm has a concave surface lens (22) in a tubular lens housing (11) and an external LED (25) connected via a fiber optic (26) to generate a light point image viewable ahead of the concave surface. A tubu... | 02/20/1996 |
| 5452131 | Sighting device for small arms, comprising a variable aperature In a sighting device for small arms comprising a holder (1) which near its one end carries a light transmitting mirror (7) and at its other end--in the focus of said mirror--a first light source (14) will according to the invention be provided with a seco... | 09/19/1995 |
| 5440387 | Optical element of a parallax free sight A parallax free sight has an optical element, preferably arranged at one end of an elongated light channel. A concave side thereof is parabolically shaped and provided with a partially reflecting layer, in the focal point of which is arranged a light emit... | 08/08/1995 |
| 5373644 | Reflex luminous dot sighting instrument with undesired dot light blocking In a reflex luminous dot firearm sighting instrument that includes a housing having an objective end and an ocular end defining an optical axis, an LED and a battery and control circuit for the LED and a tilted reflecting window or lens in the housing hav... | 12/20/1994 |
| 5315368 | Optical sight enhancing blade arrangement An optical sight typically used in cooperation with a weapon is provided to include a light tube, that in turn further is provided with a blade member mounted to the light tube that includes a concave surface of mirror image reflective qualities directing... | 05/24/1994 |
| 5272514 | Modular day/night weapon aiming system The improved day/night weapon sight comprises a red dot aiming portion having a light emitting diode, a combining mirror, and an apparatus for mounting the LED and the mirror on a weapon to produce a virtual image of the LED at an infinite distance in ali... | 12/21/1993 |
| 5264913 | Reduced combiner helicopter sight system A helicopter sight system including an illuminated reticle for controllably providing reticle imaging illumination and an active display for controllably providing active display illumination that contains alignment information provided by an electronic a... | 11/23/1993 |
| 5189555 | Parallax free optical sighting device A parallax free sight which utilizes a concave-convex lens with a parabolic shaped optical surface attached to one end of a light channel, the concave side of the lens faces into the light channel, the perimeter dimensions of the lens is adapted to the re... | 02/23/1993 |
| 5141313 | Apparatus for producing a collimating mark An apparatus for producing a collimating mark within an optical sighting device includes a light source to generate a beam of light for the mark, imaging optics, and a beam splitter. The beam splitter reflects one portion of the light from the light sourc... | 08/25/1992 |
| 5090805 | Bow sight with projected reticle aiming spot A bow sight apparatus is described with at least one lighted reticle aiming spot which is projected onto a partially reflecting mirror through which the target is viewed to superimpose the aiming spot on the target image. A light guide of fluorescent plas... | 02/25/1992 |
| 5054917 | Automatic boresighting device for an optronic system This system enables the boresighting of the optical axes of a system comprising, for example: an infrared distance measuring device, a television camera, sensitive in the visible band, and a laser telemeter which does not emit radiation in the ranges of s... | 10/08/1991 |
| 5052801 | Compact laser-assisted weapon sight A weapon sight assembly comprising a combined telescope 2 and laser unit 1 through which the user can view both a target and a laser light spot generated by the laser unit 1 on a target at the same time. A rhomb assembly housing 6 to direct the laser ligh... | 10/01/1991 |
| 5044748 | Collimator gun sight The sight is of the type in which a virtual image of a graticule pattern (3) is made to overlie the view of a target through the sight along a viewing axis of the sight. The sight has an optical arrangement with a single composite graticule pattern having... | 09/03/1991 |
| 4991959 | Opto-electronic sight In an opto-electronic sight, including several optical devices, the separate optical axes are combined by means of mirrors and beam splitters so that all the beam paths amay be directed exactly at the same sight point, either directly or via a directing a... | 02/12/1991 |
| 4988166 | Sighting arrangements A sight for aiming a spotlight on a particular target, such as a performer on stage, has a partially reflective panel supported on the spotlight in an inclined position through which the operator can see the target, and sight also includes a light source ... | 01/29/1991 |
