Patents
Sitemap › G02 - Optics › G02B - Optical elements, systems, or apparatus › G02B 13 - Optical objectives specially designed for the purposes specified below
Patents for G02B 13 - Optical objectives specially designed for the purposes specified below (20,651)
08/1989
08/24/1989WO1989007784A1 A reprographic lens system and a reprographic camera comprising such a system
08/24/1989WO1989007780A1 Simplified high speed corrected projection lens system for curved image surfaces
08/23/1989EP0328929A2 Camera and two-element viewfinder
08/23/1989EP0328915A2 A tilt and scan bow error correction system for an electrophotographic printer
08/22/1989US4859044 Large aperture lens system for use in a copier
08/22/1989US4859040 Optical system having gradient-index lens and method for correcting aberrations
08/22/1989US4859011 Light scanning device
08/15/1989US4857724 Picture pick-up and display system and picture pick-up device suitable for said system
08/15/1989US4856880 Photo-taking lens for an underwater camera
08/08/1989US4855761 Light beam recorder with an afocal anamorphic optical amplifier
08/08/1989US4854686 Apochromat type objective lenses
08/02/1989EP0326201A1 Anamorphotic optics and anamorphotic-desanamorphotic device
08/01/1989US4853535 Light beam scanning device generating a stable synchronizing signal
08/01/1989US4852984 Telephoto lens of large aperture ratio
08/01/1989US4852983 Distance simulator
08/01/1989US4852980 Optical system
07/1989
07/25/1989US4851698 Telecentric image forming system with a row camera
07/25/1989US4850663 Light scanning system
07/20/1989DE3726355A1 Bifocal optical infra-red system
07/18/1989USRE32988 Single collimator lens having one aspherical surface
07/13/1989DE3833633A1 Wide-angle eyepiece
07/11/1989US4847693 Composite process video and motion picture photography system and method
07/11/1989US4846539 Fθ lens system for use in light scanning device
07/11/1989CA1257124A1 Projection lens system
07/04/1989US4844601 Three-dimensional reflex lens systems
07/04/1989US4844599 Compact and high-speed wide-angle zoom lens system
07/04/1989CA1256724A1 Infrared afocal refractor telescope
06/1989
06/27/1989US4842394 Simplified high speed corrected projection lens system for curved image surfaces
06/27/1989US4842388 Single optical lense with diffraction limit converging capability and wide field angle
06/20/1989US4840471 X-ray shielded projection lens
06/20/1989US4840465 Device for correcting distortion
06/14/1989EP0320021A2 Zoom lens
06/13/1989US4838680 Optical system for retinal camera
06/13/1989US4838670 Projection lens for a projector
06/13/1989US4838667 Zoom lens system for use in microfilm projection apparatus
06/13/1989US4838665 Temperature-compensated lens system
06/13/1989CA1255527A1 Single lens having one aspherical surface
06/06/1989US4836664 Lens system for a copier
06/06/1989US4836660 Zoom lens system for compact camera
06/06/1989US4836630 Optical scanning system having a surface inclination correction function
06/06/1989CA1255137A1 Infrared optical system x6/x2 periscope telescope
05/1989
05/30/1989US4834513 Albada type zoom finder
05/30/1989US4834472 Optical beam expanders with materials chosen to effect athermalization
05/24/1989EP0317363A2 Wide band color correcting infra-red lens system
05/24/1989DE3838168A1 Optical picture transmission system
05/23/1989US4832472 Mapping lens
05/23/1989CA1254422A1 High speed infrared wide angle lens system
05/16/1989US4830478 Video projector lens system
05/16/1989US4830473 Rear conversion lens system
05/09/1989US4828375 Lens for scanning devices
05/09/1989US4828374 Albada type inverted Galileo finder
05/09/1989US4828373 Aspherical single lens
05/09/1989US4828371 Anamorphic laser beam correction optics
05/03/1989EP0314243A1 Device for compensating the total distortion caused by the shape of a transparent wall
05/02/1989US4827130 Selectable field infrared imager and lens set
05/02/1989US4826301 Photographic system having soft focus function
05/02/1989US4826287 Display system having coma-control plate in relay lens
04/1989
04/27/1989DE3825435A1 Large apochromatic lens unit - has six lenses in four groups to provide simultaneous correction of aperture and gauge errors
04/25/1989US4825235 Camera having soft focus filter
04/25/1989US4824236 Zoom lens system for use in microfilm projection apparatus
04/25/1989US4824225 Illumination optical system for an endoscope
04/25/1989US4824224 Lens system for a cathode ray tube projection system
04/12/1989EP0310817A1 Single lens reading glass
04/12/1989EP0310640A1 Relay lens system.
04/11/1989US4820029 Objective lens for optical pickup
04/04/1989US4818046 Light beam scanning device
03/1989
03/29/1989EP0309075A2 Lens system usable in the IR
03/28/1989US4815831 Projection lens with color correction
03/23/1989WO1989002611A1 Automotive instrument virtual image display
03/23/1989DE3822274A1 Objective having telecentric beam path
03/16/1989DE3729411A1 Optical system for a radiation sensor
03/15/1989EP0307185A2 Scanning optical apparatus
03/14/1989US4812957 Optical system for uniform illumination of a plane surface
03/14/1989US4812864 Camera and two-element viewfinder
03/14/1989US4812026 Telephoto lens system
03/14/1989US4812023 Zoom finder
03/14/1989US4812022 Zoom lens
03/14/1989US4812021 Wide angle zoom lens
03/14/1989US4812016 Chalcogenide glass and potassium chloride or lead fluoride
03/08/1989EP0305423A1 Device for deflecting a beam of rays
03/07/1989US4810075 Projection system with a cathode ray tube and a lens
03/07/1989US4810074 Photographic lens system
03/07/1989US4810071 Variable focal length lens system
03/07/1989US4810069 Collimator optical system for effecting elliptical-to-circular conversion
03/02/1989DE3728104A1 Arrangement for optical beam guidance by means of prisms
03/01/1989EP0305141A1 Optical system
02/1989
02/28/1989US4809042 Light beam scanning device and electronic photographic recording device using the same
02/28/1989US4808823 Thermal imagers
02/21/1989US4806003 Inverted-telephoto type wide angle lens system
02/21/1989US4806001 Objective for an endoscope
02/21/1989US4805999 Variable magnification lens system with constant object-image distance
02/21/1989US4805998 Variable anamorphic lens system
02/21/1989US4805997 Gradient refractive index type anamorphic planar microlens and method of producing the same
02/21/1989US4805971 Periscopic viewfinder
02/15/1989EP0302882A1 Scanning apparatus
02/14/1989US4804981 Aspheric lens for polygon mirror tilt error correction and scan bow correction in an electrophotographic printer
02/08/1989EP0302178A2 Position sensor
02/08/1989EP0302081A1 Lenses for photographic printers.
02/07/1989US4802721 Scanning optical system
02/07/1989US4802717 Infrared afocal zoom telescope
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