Patents
Patents for G02B 13 - Optical objectives specially designed for the purposes specified below (20,651)
07/1988
07/12/1988US4756583 Scanning optical system for use in a laser beam printer
07/06/1988EP0273568A1 Gas zoom lens assembly
07/06/1988EP0273476A1 Image projection system
07/05/1988US4755030 Lens for facsimile or laser printer
07/05/1988US4755028 For a cathode ray tube display from the image end
06/1988
06/30/1988DE3643276A1 Imaging sensor system
06/29/1988EP0272719A1 Projection lens system
06/28/1988US4753524 Lens for use with an optical disk
06/28/1988US4753523 Low magnification projection objective lens
06/28/1988US4753522 Plastic lens assembly for use in copying machines
06/28/1988US4753521 Lens system for focussing a divergent laser beam
06/28/1988US4753519 Optical system for projection television apparatus
06/15/1988CN87211292U Simple camera wide-angle lens
06/14/1988US4750819 Anamorphic prism
06/08/1988EP0270166A1 Distortion compensation device
06/08/1988EP0269926A2 Lens usable in the ultraviolet
06/08/1988EP0269868A1 Lens with improved flat field characteristics
06/07/1988US4750022 Optical projection system
06/07/1988US4749267 Large aperture ratio zoom lens system
05/1988
05/31/1988US4747677 Lens system having aberrations corrected at near distance focusing
05/31/1988US4747676 Wide-angle seven-element lens system
05/19/1988WO1988003658A1 Lens for receiving and/or transmitting infrared radiation
05/17/1988US4744641 Telephoto lens assembly for overhead projector
05/10/1988US4743103 Lenses for photographic printers
05/10/1988US4743101 Rear-attachment lens system
05/03/1988US4742222 Selective optical detector apparatus utilizing longitudinal chromatic aberration
05/03/1988US4741606 Objective lens system for optical recording and reading device
05/03/1988US4741605 Multifocal objective
04/1988
04/26/1988US4740067 Projection lens system
04/19/1988US4738521 Lens for indirect ophthalmoscopy
04/19/1988US4738518 Three dimensional reflex lens systems
04/19/1988US4738517 Copying lens with a wide angle of view
04/19/1988US4738497 Antireflection film
04/19/1988US4738496 High speed infrared wide angle lens system
04/13/1988EP0263139A1 Lens
04/12/1988US4737006 Optical fiber termination including pure silica lens and method of making same
04/07/1988DE3629438A1 Anamorphotic attachment for a photographic basic lens
04/06/1988EP0262407A1 Compact wide angle lens
04/05/1988US4735496 Five-element copying zoom lens system
04/05/1988US4735493 Wipe-angle zoom lens system
03/1988
03/29/1988US4733953 Color corrected projection lens
03/22/1988US4732459 Fast telephoto lens
03/15/1988US4730910 Wide angle lens system having flare rejection properties
03/15/1988US4730906 Bright wide-angle zoom lens
03/08/1988US4730199 Photographic apparatus
03/08/1988US4729645 Non-spherical single lens
02/1988
02/24/1988EP0256826A2 Thermal imagers
02/24/1988EP0256051A1 Image processing device for controlling the transfer function of an optical system.
02/23/1988US4726669 High relative aperture objective lens system with compound focusing
02/23/1988US4726668 Zoom lens of short total length
02/23/1988US4726665 Compact wide-angle zoom lens
02/09/1988US4723864 Endoscope and photographing apparatus
02/03/1988EP0254762A1 Method for scanning thermographic pictures and device for carrying out said method
01/1988
01/27/1988EP0254265A2 Variable-focus lens for I.R.
01/26/1988US4721373 Lens system for use with an optical disk
01/26/1988US4721369 Gradient index single lens
01/19/1988US4720637 Electro-optical imaging system and lens therefor
01/19/1988US4720179 Zoom lens system for use with a compact camera
01/13/1988EP0252614A2 Single aspherical lens
01/12/1988US4719488 Copying machine
01/05/1988US4717245 High relative aperture Gauss type lens
12/1987
12/23/1987EP0250147A2 Electro-optical imaging apparatus
12/22/1987US4714307 Catadioptric infrared lenses
12/16/1987EP0248823A1 Optical sensing system.
12/15/1987US4712886 Lens doublet color-corrected for visible and near-infrared wavelengths
12/15/1987US4712884 Lens system for deflected light beam
12/15/1987CA1230248A1 Projection lens system
12/08/1987US4711536 Color separating lens composed of three lens units
12/08/1987US4711533 Standard zoom lens system having a large aperture ratio
12/03/1987WO1987007391A1 Lenses for photographic printers
12/01/1987US4710820 Single layer optical coupler for projection TV CRT
12/01/1987US4709998 Telephoto lens system
11/1987
11/24/1987US4708445 Large aperture ratio photographic lens system
11/17/1987US4707098 Albada finder
11/17/1987US4707085 Fθ lens for use in light beam scanner
11/17/1987US4707084 Projection lens
11/17/1987US4707082 Variable magnification copying lens system
11/17/1987US4707073 Fiber optic beam delivery system for high-power laser
11/17/1987US4707055 Scanning apparatus
11/11/1987CN86108696A Object lens of telescope for romotely measuring light radiation
11/10/1987US4705367 Variable focal length optical system having a constant diameter focal spot
11/10/1987US4705364 Wide angle lens
11/10/1987US4705343 Imaging a scene from an aircraft
11/05/1987WO1987006717A1 Infrared afocal zoom telescope
11/05/1987WO1987005709A3 Lens
11/03/1987US4704018 Eye fundus observing and photographing apparatus
11/03/1987US4704011 Three-glass photographic objective color-corrected at four wavelengths
11/03/1987US4704009 Projection lens
11/03/1987US4704008 Color-corrected prism systems
10/1987
10/27/1987US4702569 Color-corrected Petzval lens systems
10/21/1987EP0242120A1 Light scanning system
10/21/1987EP0241558A1 Method of manufacturing gradient index lens
10/13/1987US4699477 Projection lens system
10/13/1987US4699476 Projection lens system
10/08/1987WO1987006016A1 Scanning apparatus
10/08/1987WO1987006015A1 Scanning apparatus
10/07/1987EP0240194A1 Improvements in or relating to optical beam expanders
10/06/1987US4697892 Projection lens
10/06/1987US4697866 Apparatus and method for fabricating a sandwich lens
09/1987
09/30/1987EP0238662A1 Optical device