Patents
Patents for G02B 13 - Optical objectives specially designed for the purposes specified below (20,651)
01/1989
01/31/1989US4801196 Wide angle projection lens
01/31/1989US4801183 Infra-red optical systems
01/26/1989WO1989000710A1 Spectacle lens with astigmatic effect
01/25/1989EP0300415A1 Spectacle lens having an astigmatic effect
01/25/1989EP0299964A1 Scanning apparatus.
01/25/1989CN2031534U Camera special attached lens for taking cartoon
01/24/1989US4799747 Tilt error corrective scanning optical system
01/18/1989EP0299475A2 Optical system for effecting increased irradiance in peripheral area of object
01/18/1989EP0299474A2 Telecentric image-forming optical system for large image size
01/18/1989CN1030483A Composite process video and motion picture photography system and method
01/11/1989EP0298119A1 Coma-control plate in relay lens.
01/10/1989US4796963 Scanning apparatus using a rotary polygon mirror
01/04/1989EP0297361A2 Telecentric image-forming system having variable magnifications
01/03/1989CA1247906A1 Color-corrected optical systems
01/03/1989CA1247898A1 Scanner optics with no cross scan field curvature
12/1988
12/27/1988US4793698 Telephoto lens system
12/21/1988EP0295728A1 Picture pick-up and display system and picture pick-up device suitable for said system
12/20/1988US4792695 Contact-free measuring apparatus having an F-theta-corrected, catadioptric objective and method for using the same
12/20/1988US4792219 Large aperture long focus macro lens system
12/20/1988US4792218 Projection lens for high definition TV
12/20/1988US4792217 Projection lens system
12/20/1988US4792216 Photographic lens system
12/20/1988US4792215 Zoom lens
12/13/1988US4790642 Integrated metrology for microlithographic objective reducing lens
12/13/1988US4790638 Lens system for projecting images of microfilm
12/13/1988US4790637 Color-corrected catadioptric systems
12/07/1988EP0294005A1 Varifocal optical system and associated electromechanical control means
12/06/1988US4789230 f-θ Lens for use in a light beam scanning device
12/06/1988CA1245892A1 Holographic scanning system utilizing a scan linearization lens
11/1988
11/30/1988EP0292764A2 Wide angle sight glass
11/30/1988CN88201908U Picture display device
11/29/1988US4787724 Triplet type objective with a diaphragm arranged behind the lens system
11/29/1988US4787723 Ultra-wide angle F-θ lens system
11/29/1988US4787721 Photographic lens system
11/23/1988EP0292111A1 Optical device for panoramic viewing
11/22/1988US4786152 Telephoto lens system
11/22/1988US4786151 Scanning lens system for a light beam scanning device
11/22/1988US4786150 Zoom lens with beam splitter
11/03/1988WO1988008549A1 Composite process video and motion picture photography system and method
11/02/1988EP0288970A2 Optical system for flyingspot scanning system
11/01/1988US4781449 Wide angle reading lens system
11/01/1988US4781445 Optical device having positionally changeable optical surfaces and a method of varying an image forming position
10/1988
10/18/1988US4778264 Refraction-type projection lens
10/12/1988EP0286066A2 Optical scanning apparatus
10/11/1988US4776682 Projection lens system with variable air space
10/11/1988US4776681 Projection lens
10/05/1988EP0285097A2 Apparatus for recording information with light beam
10/04/1988US4775228 Zoom lens
10/04/1988US4775217 Night vision viewing system
09/1988
09/28/1988EP0284414A2 Exposure apparatus
09/28/1988EP0140923B1 Multifocal objective
09/27/1988US4773746 Reading lens system
09/27/1988US4773745 Compact wide-angle objective
09/27/1988CA1242342A1 In-line optical anamorphic beam expander/contractor
09/22/1988WO1988007218A1 Relay lens system
09/20/1988US4772108 Macro lens system
09/20/1988US4772107 Wide angle lens with improved flat field characteristics
09/20/1988US4772106 Compact zoom lens system
09/20/1988US4772105 Graded refractive index lens system
09/14/1988EP0281750A2 Optical scanning device with telecentric line camera
09/13/1988US4770517 Two-lens fθ lens
09/13/1988US4770516 Telephoto lens system capable of closeup shooting
09/13/1988US4770513 Projection lens
09/13/1988US4770512 Large aperture ratio wide-angle photographic lens system
09/13/1988US4770508 Conversion lens releasably attached behind master lens
09/13/1988US4770477 Lens usable in the ultraviolet
09/07/1988WO1988006744A1 Device for deflecting a beam of rays
09/06/1988US4768875 Arrangement for making contactless section-like measurements of the form of curved optically effective surfaces
09/06/1988US4768874 Scanning optical apparatus and method
09/06/1988US4768867 Aspherical single lens
08/1988
08/30/1988US4767202 Objective lens system for optical recording type disks
08/30/1988US4767201 Wide angle lens
08/30/1988US4767199 Projection lens
08/30/1988CA1241375A1 Weighted random pattern testing apparatus and method
08/30/1988CA1241221A1 Projection lens system
08/23/1988US4766498 Image projection system
08/23/1988US4765727 Color-corrected lens systems
08/23/1988US4765725 Imaging single lens
08/23/1988US4765723 Objective lens system for optical reading device
08/17/1988EP0278777A2 Dual magnification infra-red telescope
08/16/1988US4764001 Retrofocus-type objective for an endoscope
08/16/1988US4764000 Telephoto lens system with three relatively shiftable lens groups
08/16/1988US4763997 Viewfinder optical system of inverted Galilean type with great magnification
08/09/1988US4762404 Color-corrected lens systems
08/09/1988US4762403 Imaging optical system having a distributed index lens
08/04/1988DE3249662C2 Scanning lens
08/03/1988EP0276896A2 Optical information recording/reproducing apparatus
08/03/1988EP0276865A2 Lens system for a copier
08/02/1988US4761064 Color-corrected lens systems
08/02/1988US4761063 Projection lens system
07/1988
07/28/1988WO1988005553A1 Coma-control plate in relay lens
07/27/1988EP0275673A1 Optical communication systems
07/26/1988US4759619 Inverted telephoto type wide angle lens system with a rear focusing unit
07/26/1988US4759616 Method and apparatus for anamorphically shaping and deflecting electromagnetic beams
07/19/1988US4758074 Video projector lens system
07/19/1988US4758073 Zoom lens
07/19/1988US4758072 Gas zoom lens assembly
07/19/1988US4758059 Post-objective type optical deflector
07/12/1988US4756972 Support with radiation cured lacquer comprising aromatic diacrylate compound
07/12/1988US4756584 Scanning optical system with irregular deflecting surface correction