| Patents for G02B 13 - Optical objectives specially designed for the purposes specified below (20,651) |
|---|
| 01/24/1991 | DE3923183A1 Objective lens for optical scanner - has radii or curvature and spacing of lenses defined by formulae |
| 01/22/1991 | US4987483 Projection television set |
| 01/22/1991 | US4987304 Stimulating radiation |
| 01/22/1991 | US4986641 Retrofocus objective lens and optical scanning device provided with such a lens |
| 01/17/1991 | DE4013798A1 Lens system for eye-piece of terrestrial telescope - consists of negative lens, positive and positive lens group |
| 01/16/1991 | EP0408445A1 Optical device for image magnification |
| 01/15/1991 | US4984878 Ojective lens for endoscope |
| 01/14/1991 | CA2036377A1 Double axial gradient lens and process for fabrication thereof |
| 01/13/1991 | CA2020819A1 Optical system for enlarging images |
| 01/08/1991 | US4983026 Focal length changeable lens system |
| 01/02/1991 | EP0405532A2 Zoom lens |
| 01/01/1991 | US4982216 Focusing device of a camera |
| 01/01/1991 | US4981344 Wide angle lens system for use in copying machine |
| 12/25/1990 | US4979808 Endoscope objective lens system |
| 12/25/1990 | US4979807 Biaspherical single lens for an optical information recording-reproducing apparatus |
| 12/25/1990 | US4979806 Zoom lens system |
| 12/19/1990 | EP0248823B1 Optical sensing system |
| 12/12/1990 | EP0401264A1 A reprographic lens system and a reprographic camera comprising such a system |
| 12/11/1990 | US4976526 Performance correcting optical assembly for photographic lens for television |
| 12/11/1990 | US4976525 Projection lens system for projectors |
| 12/11/1990 | US4976524 Optical system for endoscopes to be used for observing the interior of pipes |
| 12/09/1990 | WO1990015356A1 Stereoscopic viewing apparatus and method and related stereoscopic recording |
| 12/09/1990 | CA2058445A1 Stereoscopic viewing apparatus and method and related stereoscopic recording |
| 12/05/1990 | EP0400954A2 Raster scanning system utilizing overfilled polygon facet design |
| 12/04/1990 | US4974948 Optical device for varying magification |
| 11/29/1990 | DE4016587A1 Switchable day-and-night vision appts. - has optical compensating system with front lens elements offsetting image and with rear elements for chromatic correction |
| 11/29/1990 | DE3917158A1 Lens system for objective of optical instrument - has four lenses with surfaces having defined of curvatures |
| 11/28/1990 | CN1047395A Retrofocus objective lens and optical scanning device provided with such lens |
| 11/27/1990 | US4973143 Zoom lens system |
| 11/22/1990 | EP0398431A1 Retrofocus objective lens and optical scanning device provided with such a lens |
| 11/20/1990 | US4971411 Optical scanning system |
| 11/15/1990 | WO1990013832A1 Method for fabricating a transparent polymer lens with modulated refraction index |
| 11/13/1990 | WO1990013981A1 High definition, three-dimensional television |
| 11/13/1990 | CA2055457A1 High definition, three-dimensional television |
| 11/07/1990 | EP0396128A2 Catadioptric projector, catadioptric projection system and process |
| 11/06/1990 | US4968126 All-optical device and method for remapping images |
| 11/06/1990 | US4968123 Helmet mounted display configured for simulator use |
| 11/01/1990 | WO1990013054A1 Optical system for imaging the light from light sources |
| 10/31/1990 | EP0395570A2 Helmet mounted display configured for simulator use |
| 10/30/1990 | US4966449 Telephoto lens system |
| 10/25/1990 | DE3916658A1 Optics imaging light from sources e.g. LEDs in different planes - has member with two lens element having astigmatic effect |
| 10/24/1990 | CA2015166A1 Helmet mounted display configured for simulator use |
| 10/23/1990 | US4964705 Unit magnification optical system |
| 10/23/1990 | US4964704 Optical system for use of a laser processing machine |
| 10/23/1990 | US4964703 Image-forming lens |
| 10/23/1990 | US4964686 Finder optical device |
| 10/18/1990 | DE3919484A1 Optical system for altering form of laser beam cross section - has follow-on lenses with offset axial angles and max. focus of 300 mm |
| 10/16/1990 | US4963007 Color corrected projection lens |
| 10/16/1990 | US4963005 Zoom lens having built-in diaphragm |
| 10/16/1990 | US4962982 Light beam scanning device and light beam scanning lens |
| 10/09/1990 | US4961626 Direct incorporation of night vision in a helmet mounted display |
| 10/09/1990 | US4961622 Optical coupler and refractive lamp |
| 10/04/1990 | DE4003421A1 High resolution wide angle lens with low distortion - is for aerial camera, contains 11 lenses, 14 lens-air boundaries in groups |
| 09/26/1990 | EP0388704A2 Anamorphotic attachment in front of a base objective for view-taking and projection use |
| 09/21/1990 | CA2012593A1 Anamorphic attachment for purposes of filming and reproduction to be used together with a basic lens |
| 09/19/1990 | EP0387900A2 Scanning optical system |
| 09/18/1990 | US4957355 Retrofocus type lens system |
| 09/13/1990 | DE4006275A1 Objektivlinsensystem einer aufzeichnungs/wiedergabe-vorrichtung fuer optische information Objective lens system of a recording / reproducing apparatus for an optical information |
| 09/11/1990 | US4955701 Apochromat optical system |
| 09/11/1990 | US4955700 Small-size zoom lens system |
| 09/11/1990 | US4955682 Scanning optical system |
| 09/05/1990 | EP0385698A2 Projection lens and projection television system using the same |
| 09/04/1990 | US4953959 Objective lens for optical disks |
| 09/04/1990 | US4953958 Variable magnification duplicator lens system |
| 09/04/1990 | US4953937 Illumination optical system |
| 08/29/1990 | EP0384880A2 Direct incorporation of night vision in a helmet mounted display |
| 08/28/1990 | US4953171 Semiconductor laser source unit |
| 08/28/1990 | US4952040 Illumination optical system for an endoscope |
| 08/23/1990 | WO1990009607A1 Optical lenses and related devices |
| 08/21/1990 | US4950062 Projection lens |
| 08/21/1990 | US4950055 Retrofocus type wide angle lens |
| 08/21/1990 | CA2010439A1 Helmet mounted display having dual interchangeable optical eyepieces |
| 08/21/1990 | CA2010434A1 Direct incorporation of night vision in a helmet mounted display |
| 08/14/1990 | US4948238 Optical projection system |
| 08/14/1990 | US4948237 Projection lens system |
| 08/14/1990 | US4948236 Soft-focus lens system |
| 08/14/1990 | US4948233 Beam shaping optical system |
| 08/07/1990 | US4946267 Endoscope relay optics |
| 07/31/1990 | US4945407 High definition, three-dimensional television |
| 07/24/1990 | US4943146 Reading lens system |
| 07/17/1990 | US4941721 Raster scanning system utilizing overfilled polygon facet design |
| 07/12/1990 | DE4000448A1 Optical system with view finder - and penta-mirror has two plastic lenses of specified parameters |
| 07/10/1990 | US4941012 Finder optical system for cameras |
| 07/04/1990 | CN2058997U Anamorphotic lens |
| 07/03/1990 | US4938573 Objective lens system |
| 07/03/1990 | US4938572 Zoom lens system for use in microfilm projection apparatus |
| 06/27/1990 | EP0375492A1 Optical device for observing an elongate object |
| 06/26/1990 | US4937609 Camera having soft focus filter |
| 06/26/1990 | CA1270686A1 Projection-lens system |
| 06/20/1990 | EP0373677A2 Lens system for optical beam scanner |
| 06/19/1990 | US4934797 Wide-angle lens system of a retrofocus type |
| 06/19/1990 | US4934796 Zoom lens |
| 06/19/1990 | US4934795 Zoom lens |
| 06/19/1990 | US4934794 Zoom lens system for use in microfilm projection apparatus |
| 06/19/1990 | US4934772 Light beam scanning lens and light beam scanning device |
| 06/19/1990 | CA1270398A1 Projection-lens system |
| 06/12/1990 | US4933599 Projection system with a cathode ray tube and a lens |
| 06/12/1990 | US4932764 Optical system for use in photographic devices |
| 06/12/1990 | US4932763 Aspherical single lens system for use with optical cards |
| 06/12/1990 | US4932734 Optical scanning system using a laser diode array |