Patents
Patents for G02B 13 - Optical objectives specially designed for the purposes specified below (20,651)
05/1993
05/18/1993US5212597 Projection lens system for projectors
05/18/1993US5212593 Broad band optical reduction system using matched multiple refractive element materials
05/18/1993US5212589 Lens system for focussing light of plural wavelength
05/18/1993US5212588 Reflective optical imaging system for extreme ultraviolet wavelengths
05/11/1993US5210646 Color-corrected optical systems and method of selecting optical materials therefor
05/06/1993DE4236601A1 Projection lens system - has lens dispersing indices determined by formula taking indices of refraction into account
05/05/1993EP0540241A1 A 180-degree wide angle strip imaging optical system
05/05/1993EP0539914A1 Afocal zoom lens system with achromatic and athermal behaviour in the infrared wavelength region
05/02/1993CA2081802A1 Wide field strip-imaging optical system
04/1993
04/27/1993US5206675 Real image mode finder optical system
04/22/1993DE4234721A1 Three lens arrangement - has front, central and rear lens of material of different dispersions set spacedly and having spherical and aspherical surfaces
04/21/1993EP0537469A1 Photographic objective of the triplet type
04/20/1993US5204782 Color-corrected optical systems
04/20/1993US5204780 Lens system for a copying machine
04/20/1993US5204774 Night vision goggle with improved optical system
04/15/1993WO1993007524A1 Image rotation device
04/13/1993US5202869 Optical head device including diffraction grating
04/13/1993US5202795 Eyepieces
04/13/1993US5202792 Systems of objectives with optical athermalization
04/08/1993DE4134924C1 Reversible lens attachment increasing or reducing field of view - has coupling piece at either end and produces anamorphic effect for image taking or projecting
04/07/1993EP0535564A1 Fourier transform lens assembly and optical information processor employing same
04/06/1993US5200861 Lens systems
04/06/1993US5200850 Anamorphic optical system
04/06/1993US5200814 Video projector with optical color balance
04/01/1993DE4232662A1 Picture projection equipment - enlarges and projects colour pictures from small picture surfaces on to large picture screen with three single colour cathode ray tubes
03/1993
03/31/1993EP0534711A1 Biocular eyepiece optical system employing refractive and diffractive optical elements
03/31/1993EP0534439A1 Multiple field of view sensor lens assembly
03/31/1993CN1070488A 1:1 refractive type optical system with aberrational correction
03/30/1993US5198931 Objective optical system for endoscopes
03/24/1993EP0533077A1 Zoom lens
03/17/1993EP0532267A1 Re-imaging optical system employing refractive and diffractive optical elements
03/17/1993EP0531925A1 Zoom lens
03/16/1993US5194991 Zoom lens system
03/16/1993US5194986 Objective lens assembly for a portable missile launcher
03/16/1993US5194959 Image forming apparatus for forming image corresponding to subject, by dividing optical image corresponding to the subject into plural adjacent optical image parts
03/09/1993US5193028 Optical system for eliminating ghost image in wide wavelength band
03/04/1993WO1993004391A1 High aperture lens system and printer using the lens system
03/03/1993EP0528969A1 Unit magnification optical system with improved reflective reticle
03/02/1993US5191474 Anamorphic illuminating optical system
03/02/1993US5191463 Scanning optical system in which a ghost image is elminated
03/02/1993US5191203 Stereo video endoscope objective lens system
02/1993
02/24/1993EP0528338A1 Anamorphotic front lens attachment for a projection objective
02/23/1993US5189556 Color photography optical system
02/23/1993US5189546 Scanning optical system with offset lens component
02/18/1993WO1993003407A1 Variable-lateral amplification objective lens with fixed object-image distance and integral rotating prism
02/17/1993EP0527384A1 Lens with variable focus distance and integrated rotation prism
02/09/1993US5184880 Anamorphic attachment for purpose of filming and reproduction to be used together with a basic lens
02/03/1993EP0526283A1 Optical projection apparatus with adjustable focus
02/03/1993EP0525948A2 Apparatus and method for illuminating a sample
02/02/1993US5184252 Finder optical system
02/02/1993US5184223 Electronic imaging apparatus
01/1993
01/26/1993US5182781 Optical device for the observation of an elongated object
01/20/1993EP0523988A1 Image projector
01/12/1993US5179620 Structure of needle-type lens
01/12/1993US5179473 Zoom lens
01/12/1993US5179465 Optical system for light beam scanning
01/12/1993US5179398 Projector and image adjustment method
01/12/1993US5179277 Methods for optically scanning a scanned face with an equi-angular scan velocity
01/07/1993EP0528969A4 Unit magnification optical system with improved reflective reticle.
01/05/1993USRE34156 Scanning optical system for use in a laser beam printer
12/1992
12/30/1992EP0520513A1 Objective
12/23/1992EP0519007A1 Multisensor high-resolution camera
12/22/1992US5173890 Optical pickup device including diffraction grating
12/22/1992US5173809 Objective lens system of optical information recording/reproducing apparatus
12/22/1992US5173806 Keplerian variable magnification viewfinder
12/22/1992US5173798 Beam scanning apparatus with sensor for detecting beam position
12/15/1992US5172275 Apochromatic relay lens systems suitable for use in a high definition telecine apparatus
12/15/1992US5172274 Large aperture, medium telephoto lens system
12/15/1992US5172273 Zoom lens system
12/15/1992US5172272 Imaging lens system
12/10/1992WO1992022073A1 Solid state imaging apparatus with fiber optic bundle
12/09/1992EP0517451A1 Laser astigmatism compensation
12/09/1992EP0517409A1 Optical systems employing refractive and diffractive optical elements to correct for chromatic aberration
12/08/1992US5170292 Wide-angle zoom lens system
12/08/1992US5170207 Projection lens system
12/03/1992DE4216137A1 Vorrichtung zum einstellen der dioptrien-einstellung eines sucheraufbaus Apparatus for Adjusting the diopter-adjustment of a visitor structure
12/01/1992US5168403 Zoom lens system
12/01/1992US5168386 Flat field telecentric scanner
11/1992
11/26/1992WO1992021055A1 Real image viewfinder requiring no field lens
11/24/1992US5166830 Aspherical lens system for a bar code sensor
11/24/1992US5166828 Zoom lens system
11/24/1992US5166716 Zoom lens camera having converter lens incorporated therein
11/10/1992US5162949 Lens for an optical disc recording and/or reproducing apparatus
11/04/1992EP0511329A1 Radiation source for a printer.
11/03/1992US5161065 Behind stop wide angle lens system
11/03/1992US5161064 Radiation source for a printer
11/03/1992US5161063 Objectives for an optical data storage head
11/03/1992US5161062 Optical projection system including a refractive lens assembly having a gap between constituent lenses
11/03/1992US5161060 Camera lens
11/03/1992US5161051 Simultaneous dual field of view sensor
11/03/1992US5161040 Optical system with aberration suppression and optical head utilizing the same
10/1992
10/29/1992WO1992019008A1 Stereo video endoscope objective lens system
10/29/1992WO1992018850A1 Confocal imaging system for visible and ultraviolet light
10/27/1992US5159496 Lens system with four meniscus lenses made of anomalous dispersion glass
10/27/1992US5159494 Zoom lens system
10/27/1992US5159493 Retrofocus type wide angle lens comprising a fixed group and movable corrective and rear groups
10/27/1992US5159492 Four lenses; measuring thickness of sample
10/27/1992US5159491 Combination collimating lens and correcting prism
10/27/1992US5159455 Multisensor high-resolution camera
10/22/1992DE4208622A1 Light section microscope forming image corresp. to cross=section enabling surface to be examined - has distortion correction system on optical axis of each projection and observation systems