Patents
Sitemap › G02 - Optics › G02B - Optical elements, systems, or apparatus › G02B 27 - Other optical systems; Other optical apparatus
Patents for G02B 27 - Other optical systems; Other optical apparatus (75,835)
11/1981
11/18/1981EP0040033A1 Prism polarizer
11/10/1981US4300226 Compensation apparatus for a servo system with periodic command signals
11/10/1981US4300160 Thermal imaging device for detecting and identifying a thermal object
11/10/1981US4299451 Minimum resolvable contrast measurement device
11/10/1981US4299443 Apparatus for detecting the defects of a pattern with directional characteristics using a filter having arm sections of curved shape
11/03/1981US4298806 Apparatus for irradiating substances curable by radiation
11/03/1981CA1111691A2 Laser workpiece position and presence inspector and machine control governor
11/03/1981CA1111684A1 Device for viewing residual light in the visible and the near infrared spectrum
10/1981
10/28/1981EP0038557A2 Optical low-pass filter
10/28/1981EP0038525A1 Ocular refractometry apparatus
10/27/1981US4297572 Tracking solar energy collector assembly
10/21/1981EP0037833A1 Apparatus for displaying threedimensional images.
10/21/1981EP0037820A1 Method and apparatus for producing apparent three-dimensional images.
10/20/1981US4296066 Ultraviolet radiation purification
10/20/1981US4295735 Optical projection system having a photorepetition function
10/20/1981CA1110873A1 Instrument for determining the distinctness of image of a paint film
10/15/1981WO1981002931A1 Protective shield device
10/13/1981US4295153 Stereoscopic apparatus and method of using same
10/13/1981US4294538 Image forming optical system
10/13/1981US4294523 Three-dimensional display apparatus
10/13/1981US4294516 Moving picture apparatus
10/13/1981US4294515 Virtual image display apparatus
10/13/1981US4294509 Optical circulators
10/13/1981US4294506 Optical scanner with anamorphic optical system
10/07/1981EP0037006A1 Optical star coupler with planar mixer element
10/06/1981US4293190 Transparency viewers
10/06/1981CA1110059A1 Device for optic, preferably visual determination of a certain plane
10/01/1981WO1981002796A1 Wide angle color photography method and system
09/1981
09/29/1981US4291976 Digital fiber optic position sensor
09/29/1981US4291937 Optical panoramic survey
09/29/1981CA1109961A1 Optical system
09/23/1981EP0036099A1 A mirror and prism combination for the harmonisation of optical axes
09/22/1981US4291224 Light image space frequency component extracting device
09/22/1981US4290675 Anaglyph stereoscopy
09/22/1981US4290669 Optical display apparatus
09/22/1981US4290666 Joint for an observation device
09/22/1981CA1109559A1 Optical read unit for scanning a record carrier having a radiation-reflecting information structure
09/22/1981CA1109313A1 Information carrier with relief part-images
09/22/1981CA1109307A1 Method and device for mixing-demixing optical beams for transmission on optical fibres
09/22/1981CA1109304A1 Arrangement of screens intended to give rise to a moire pattern
09/16/1981EP0035885A1 Optical position sensor
09/15/1981US4289378 Apparatus for adjusting the focal point of an operating laser beam focused by an objective
09/15/1981US4289377 Projecting apparatus
09/08/1981US4288861 Three-dimensional systems
09/08/1981US4288148 Beam-splitting optical system
09/08/1981CA1108449A1 Image stabilization system for continuous film scanning apparatus
09/08/1981CA1108446A1 Viewing carrier for photographic sheets
09/01/1981US4286875 Diffractometer
09/01/1981US4286874 Diffractometer
08/1981
08/18/1981US4284994 Laser beam recorder
08/18/1981US4284324 Acousto-optical imagery system based on coherent holographic detection in real time
08/18/1981US4284323 Trichroic mirror
08/18/1981CA1107103A1 Viewer for photographic prints
08/18/1981CA1107102A1 Viewer for photographic prints
08/18/1981CA1107101A1 Stereoscopic image viewing apparatus
08/18/1981CA1107100A1 Three-dimensional image production
08/12/1981EP0033335A1 Refractively scanned interferometer.
08/11/1981US4283116 Beam combiner
08/11/1981US4283115 Beam splitters for endoscopes comprising a dual observation system
08/11/1981US4283110 Optical system for discussion-microscope
08/11/1981CA1106663A1 Frame assembly for supporting illuminated transparency viewers
08/11/1981CA1106662A1 Viewer for photographic prints
08/04/1981US4281904 TIR Electro-optic modulator with individually addressed electrodes
08/04/1981US4281896 Shared aperture separator for reciprocal path optical beams
08/04/1981US4281894 Very low absorption, low efficiency laser beamsampler
08/04/1981CA1106496A1 Recording device for optically recording information on a carrier with a light spot and a positional control of the spot
07/1981
07/29/1981EP0032499A1 Optical illumination and distortion compensator.
07/28/1981US4280752 Solid-medium coherent optical processor
07/28/1981CA1105751A1 Device for coupling at least three light guides
07/28/1981CA1105747A1 Diascope for television camera and camera including such a diascope
07/23/1981WO1981001952A1 Method of and device for coding and decoding an image of an object by means of penetrating radiation
07/21/1981US4279246 Device for preventing clouding of an observing window
07/14/1981US4278736 Contrast enhancement filter and method
07/14/1981US4278331 Photographic objective which prevents variation in angular field of view during focusing
07/14/1981US4278327 Liquid crystal matrices
07/14/1981CA1105078A1 Electrically isolated illumination control for dental drill
07/09/1981WO1981001935A1 Model and apparatus for producing optical displays
07/09/1981WO1981001887A1 Image recording device for manufacturing print negatives
07/08/1981EP0031781A1 Stabilized sighting devices for vehicles
07/08/1981EP0031680A2 Focusing apparatus
07/08/1981EP0022825A4 Method of treating a workpiece by directing a beam of radiation on to it.
07/07/1981US4277156 Focusing position detection apparatus
07/07/1981US4277138 Diffraction grating and system for the formation of color components
07/07/1981US4277128 Anamorphic Fθ lens system
07/07/1981CA1104716A1 Optical disc reader having diffraction minima at non- interrogated tracks
07/07/1981CA1104503A1 Method of and a system for color separation using scanning light beams
07/01/1981EP0031155A2 Arrangement for the dot-and-line recording of image information
06/1981
06/30/1981US4275960 System for enhanced light uniformity in a document scanning system
06/24/1981EP0030671A1 Method and apparatus for converting sequentially produced light into output light comprised of periodic high amplitude pulses
06/23/1981US4275302 Method and device for converting thermal images into secondary images, e. g. visible images
06/23/1981US4275288 Apparatus for machining material
06/23/1981US4275275 Recording device for optically recording information on a carrier with a light spot and a positional control of the spot
06/23/1981US4274710 Optical wave circulators
06/23/1981CA1103791A1 Multi-segment head-up display for aircraft
06/23/1981CA1103500A1 Optical comb filter
06/23/1981CA1103491A1 Supporting leg assembly for an illuminated transparency viewer
06/17/1981EP0030316A1 Non fogging oculars for optical observation and examination devices
06/16/1981US4274110 Projection television system
06/16/1981US4273424 Variable aberration lens system
06/16/1981US4273418 Mirror for producing optical illusions
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