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| Number | Title | Issue Date |
| 5257118 | Method for holographically combining laser beams A holographic recording of the interference between an object laser beam and a reference laser beam is used to combine the amplitudes of multiple laser beams which are conjugates of the reference beam into a single laser beam which is conjugate of the obj... | 10/26/1993 |
| 5257132 | Broadband diffractive lens or imaging element A broadband diffractive lens or imaging element produces a sharp focus and/or a high resolution image with broad bandwidth illuminating radiation. The diffractive lens is sectored or segmented into regions, each of which focuses or images a distinct narro... | 10/26/1993 |
| 5247395 | Thin film mirror A thin plastic sheet having a reflective material on one surface. Sandwiching the reflective layer is an environmental protective coating of plastic resin. In the preferred embodiment, this protective coating also functions as an adhesive for face bonding... | 09/21/1993 |
| 5245468 | Anti-reflective transparent coating An anti-reflective coating employing Si1-x Hx as a high refractive index material in a film pair together with SiO2 as a low refractive index material is found to be substantially transparent to visible light and to provid... | 09/14/1993 |
| 5245454 | LCD display with microtextured back reflector and method for making same Applicant has discovered a method for microembossing reflector surfaces with controlled reflecting patterns too small to be resolved by the unaided eye but capable of providing controlled reflection characteristics superior to uncontrolled random deformat... | 09/14/1993 |
| 5235461 | Optical encoding and correlation system An optical correlator system for encoding a complex optical image onto a erent beam of light such as a laser and comparing it with a reference complex image. One embodiment of the invention encodes phase only information of the complex image onto the coh... | 08/10/1993 |
| 5235468 | Trailer hitch viewing device with a readily detachable fixed alignment, storable mirror This invention is a trailer hitch viewing device which attaches to the front of a trailer and assists the driver of the tow vehicle to connect a trailer to a tow vehicle. The device is designed so that, after initial installation and alignment of the mirr... | 08/10/1993 |
| 5235442 | Method for the recording and for the visual restitution of a tridimensional scene The invention relates to a method for the photographic recording and the visual restitution of a tridimensional scene by means of a coherent light source (1). According to the invention, in view of the photographic recording, a coherent light beam is proj... | 08/10/1993 |
| 5235470 | Orthogonal parabolic reflector systems A reflecting surface which is open at least at one axial end and in an axial section conforms to an axial section through a geometric surface generated by rotating a parabolic curve about an axis normal to the parabola axes. An elongated source/sink exten... | 08/10/1993 |
| 5235439 | Volume-holographic inner product processor A pattern recognition apparatus and a method for operating same. The apparatus includes a volume holographic medium (4) having a plurality of Fourier-space volume holograms representing pattern templates stored within. The apparatus further includes a spa... | 08/10/1993 |
| 5233373 | System and method for projecting an image (such as an ERG pattern) significantly anterior to the posterior retina A pattern ERG (PERG) projector (FIG. 2a) includes a coherent light source (32) for generating a projection beam, modulation optics (34) for modulating the projection beam with an alternating ERG interference pattern (with a selected spatial and alternatio... | 08/03/1993 |
| 5229883 | Hybrid binary optics collimation fill optics A cylindrical lens and a binary optical element for collimating with low optical aberrations an asymmetrically diverging input wavefront. The binary optical element is formed on a planar substrate on which a binary optical diffraction pattern is etched on... | 07/20/1993 |
| 5229889 | Simple adaptive optical system A system for correcting wavefront distortion includes an eight channel deformable mirror 11 attached to a two-axis, tip/tilt mount 12. The deformable mirror 11 reflects an incoming telescopic wavefront 10 onto a beamsplitter 14. The beamsplitter 14 divide... | 07/20/1993 |
| 5227897 | Reproduction of holograms A multidimensional, visually readable, diffractive surface grating such as a hologram is reproduced by providing a master grating, generating a negative image plate from the master grating for insertion into a forming device, and replicating the master gr... | 07/13/1993 |
| 5227924 | Horizontally adjustable rearview mirror The invention relates to an outside rear viewing mirror of the type wherein a mirror head assembly is supported upon and rotated relative to the support arm to permit normal adjustment of the rear viewing field of vision and further which includes a mecha... | 07/13/1993 |
| 5227921 | Light-weighted optical assembly A light-weighted optical assembly is provided. The light-weighted optical assembly of the invention is comprised of two members. Each member is constructed of a section and a plurality of ribs extending from the section and comprises one-half of the total... | 07/13/1993 |
| 5227898 | Near real-time holographic display for remote operations A near-real-time holographic display for operations at a remote work site where a three dimensional database is collected with a laser range scanner. The database is then divided into discrete two dimensional segments or depth planes. A holographic record... | 07/13/1993 |
| 5223984 | Hair grooming mirror apparatus The hair grooming mirror apparatus comprised of a mounting assembly for securement of the mirror apparatus to a ceiling or other overhead structure. A mirror frame is suspended from and carried by the mirror assembly such that it can be raised and lowered... | 06/29/1993 |
| 5216529 | Holographic code division multiple access A technique for all-optical Code Division Multiple Access (CDMA) system based on optical holography is disclosed. In this technique the energy of an incoming information light signal is spread over a spatial domain by a two-dimensional spatial encoder whi... | 06/01/1993 |
| 5214539 | Concave mirror with convex acrylic cover The invention is a reflective sign of polymeric material. The base of the sign consists of a spherical mirror. The cover for the sign consists of a transparent spherical section suitable for mating to the spherical mirror. A first opaque visible emblem is... | 05/25/1993 |
| 5214529 | Assembly for static and dynamic positional control of an optical element An assembly suitable for statically and dynamically controlling an optical element, for example, a secondary mirror. The assembly realizes a novel design technique which treats the problems of static and dynamic control of the optical element, as subsumed... | 05/25/1993 |
| 5212572 | Optical data storage system with compact holographic polarization-sensing or reflectivity-sensing optical storage head An optical data storage system having a highly integrated optical storage head that (1) integrates the read, write and servo paths, (2) comprises a monolithic laser-detector storage array that is integrated on a single chip an, wherein laser-detector alig... | 05/18/1993 |
| 5210656 | Light reflecting device A light-reflecting device incorporates a central light-reflecting frame (10) of polygonal shape fitted with a cross bar (17) carrying at the centre a universal joint assembly (24) one element (21) of which is fixed to the cross bar (17) and the other rela... | 05/11/1993 |
| 5210655 | Multi-vision mirror for a rearview mirror in a motor vehicle A multi-vision mirror is provided for a rearview mirror having an image reflector in a motor vehicle which consists of a housing, a second image reflector mounted within the housing and a mechanism for connecting the housing with the second image reflecto... | 05/11/1993 |
| 5210654 | Rapid defocusing system for electromagnetic radiation reflective concentrator A system for rapidly defocusing a solar concentrator has a plurality of variably curved reflectors carried on a frame for concentrating energy toward a target. The reflectors have an elastic reflective membrane secured to a hollow housing and are focused ... | 05/11/1993 |
| 5208700 | Lens cover assembly for binary diffractive optic lenses A plurality of binary diffractive optic lenses are formed within a corresponding plurality of recesses in the surface of one substrate. The substrate with the binary diffractive optic lenses in the recess are bonded to another flat substrate. A plurality ... | 05/04/1993 |
| 5208701 | Wobble correction lens with binary diffractive optic surface and refractive cylindrical surface A wobble correction lens for a raster output scanner combines a positive cross-scan plano-cylindrical lens, which provides most of the optical power for focusing the light beam to a scan line, with a diffractive surface, which corrects the cross-scan fiel... | 05/04/1993 |
| 5208685 | Compact optical processor This invention is a compact optical processor including a coherent light source, plural optical elements that together form a Fourier transform interferometer, and a two dimensional detector array. The light source generates a two dimensional input optica... | 05/04/1993 |
| 5206764 | Reflectant non-glare sliding plastic extension combined with sun visor's mirror A rectangular mirror assembly for attachment to the sun visor of any vehicle which includes an extendible sun shield or anti-glare protection screen encased within the mirror's structure.... | 04/27/1993 |
| 5204784 | Deformable mirror with pneumatic actuator pre-load In a deformable mirror having a mirror face plate and a plurality of axially movable piezoelectric actuators for controlling the contour thereof, an improvement is provided by which a pneumatic pre-load assembly is inserted between the face plate and the ... | 04/20/1993 |
| 5204773 | Ultraviolet light filter and filter system An ultraviolet light filter is provided by implanting an ultraviolet light absorbing chemical species into an ultraviolet light transmissive substrate. Two such filters having gradient distributions may be overlapped and shifted relative to each other to ... | 04/20/1993 |
| 5202711 | Apparatus for examining the field of vision Disclosed is an apparatus for examining the field of vision, having a scanning device, which is provided with beam deflecting and beam imaging elements, via which the illumination light beam from an illumination light source is guided onto the region of t... | 04/13/1993 |
| 5202794 | Attenuator for a laser beam In order to improve an attenuator for a laser beam of a high-power laser comprising a diffraction element which in an attenuating position extends in a section oriented transversely to a beam direction of the laser beam and is irradiated by the laser beam... | 04/13/1993 |
| 5202775 | Radically symmetric hologram and method of fabricating the same A radially symmetric iterative discrete on-axis hologram has a high diffraction efficiency for a correspondingly small f-number. The radially symmetric hologram has a plurality of concentric constant radial phase fringes. Each fringe has a predetermined p... | 04/13/1993 |
| 5198913 | Apparatus for displaying three-dimensional image by using Pockels readout optical modulator An apparatus for displaying a three-dimensional image of a plurality of tomographic images by storing pictorial information of a tomographic image in an image convering element, forming interference fringes between a reading light beam which is transmitte... | 03/30/1993 |
| 5198914 | Automatic constant wavelength holographic exposure system A hologram exposure system that includes a spherically curved mirror surface positioned adjacent a substrate/hologram assembly that includes a spherically curved hologram recording layer supported by a spherically curved substrate surface, wherein the sph... | 03/30/1993 |
| 5196965 | Rear-view unit for motor-vehicles A rear-view unit for motor-vehicles, in particular commercial vehicles, has at least one external rear-view mirror with a housing and at least one mirror glass pivotably arranged in the housing. Electric servomotors are provided to pivot the mirror glasse... | 03/23/1993 |
| 5194990 | Low color purity, anti-reflection coatings for transparent glazings oriented at high angles of incidence Three-layer, low color purity, anti-reflection coatings reduce the reflection of visible light rays and display a low color purity when glazings carrying such coatings are oriented at high angles of incidence with respect to a source of visible light. The... | 03/16/1993 |
| 5193014 | Metal vessel having hologram of diffraction grating formed thereon The metal vessel of the present invention is characterized in that a relief type hologram or relief type diffraction grating is formed on at least a part of the vessel by coining. By forming this hologram or diffraction grating by coining, the dimensional... | 03/09/1993 |
| 5191468 | Welder's helmet A welder's helmet (1) provided with a fast filter (3) which is controlled by welding light and through which the wearer of the helmet can see clearly in the absence of welding light. In accordance with the invention, the helmet is complemented with side w... | 03/02/1993 |
