G02B 15 - Optical objectives with means for varying the magnification

Patents for G02B 15 - Optical objectives with means for varying the magnification (11,929)
05/1994
05/10/1994	US5311355 Afocal zooming optical system
05/04/1994	EP0595153A1 Wide angle converter for a zoom lens
05/03/1994	US5309286 Zoom finder
05/03/1994	US5309285 Zoom lens system for use with a compact camera
05/03/1994	US5309284 Great relative aperture telephoto zoom lens
05/03/1994	US5309278 Real-image variable magnification finder including a light shield between two moving lens groups
04/1994
04/20/1994	EP0592916A1 Zoom lens incorporating vibration-proofing function
04/19/1994	US5305148 Image forming system
04/12/1994	US5303086 Zoom lens with close-up lens
04/05/1994	US5301065 Compact zoom lens system
04/05/1994	US5301064 Rear focusing type zoom lens system
04/05/1994	US5300977 Zoom viewfinder with fixed size moving window
03/1994
03/29/1994	US5299064 Zoom lens of rear focus type
03/22/1994	US5296969 Zoom lens system having a short total length
03/22/1994	US5296968 Zoom lens system
03/16/1994	EP0587167A1 Zoom lens with image stabilisation
03/09/1994	EP0585651A2 Zoom projection lens systems
02/1994
02/22/1994	US5289317 Compact zoom lens
02/15/1994	US5287220 Zoom lens having an illumination system incorporated therein
02/08/1994	US5285317 Zoom lens system
02/08/1994	US5285316 Zoom lens
02/01/1994	US5283693 Compact zoom lens system
01/1994
01/27/1994	DE4324347A1 Mass produced monolithic ceramic filter - has honeycomb structure with partition wall section, useful for micro and ultra filtration and reverse osmosis
01/25/1994	US5282089 Zoom lens system
01/25/1994	US5282087 Multiple field of view sensor lens assembly
01/18/1994	US5280390 Zoom lens system
01/11/1994	US5278699 Zoom lens system
01/11/1994	US5278697 Zoom lens system for use in copying apparatus
01/04/1994	US5276760 Optical device for photographing images formed from optical fiber bundles
01/04/1994	US5276553 Ultra wide angle zoom lens
12/1993
12/28/1993	US5274504 Zoom lens
12/21/1993	US5272566 Varifocal lens system
12/21/1993	US5272565 Compact zoom lens system
12/21/1993	US5272564 Zoom lens of internal focusing system
12/14/1993	US5270868 Zoom lens barrel and camera incorporating such barrel
12/14/1993	US5270867 Compact zoom lens having a weak front lens group
12/14/1993	US5270866 Compact zoom lens
12/14/1993	US5270865 Compact zoom lens
12/14/1993	US5270864 Zoom lens system for use in copying apparatus
12/14/1993	US5270863 Zoom lens system
12/14/1993	US5270861 Zoom lens system for use in a compact camera
12/08/1993	EP0572806A2 Image pickup apparatus having lens holding unit and adjustment mechanism
12/07/1993	US5268793 Zoom lens system
12/07/1993	US5268792 Zoom lens
12/07/1993	US5268790 Zoom lens employing refractive and diffractive optical elements
12/01/1993	EP0571608A1 Zoom lens system for use in a compact camera.
11/1993
11/30/1993	US5267085 Zoom lens apparatus of two-lens group structure
11/30/1993	US5267084 Compact, fast zoom lens system
11/30/1993	US5267083 Lens system for optical reader
11/30/1993	US5267082 Zoom lens
11/23/1993	US5264965 Zoom lens
11/16/1993	US5262897 Zoom lens system
11/09/1993	US5260834 Small zoom lens system
11/09/1993	US5260833 Zoom lens system
10/1993
10/26/1993	US5257135 Compact zoom lens system
10/26/1993	US5257134 Zoom lens
10/26/1993	US5257129 Real image type variable magnification viewfinder optical system
10/20/1993	EP0566073A1 Zoom lens assembly
10/19/1993	US5255123 Microfilm reader/printer zoom lens system
10/13/1993	EP0564634A1 Zoom viewfinder.
10/12/1993	US5253114 Zoom lens system
10/12/1993	US5253113 Wide-angle zoom lens having five lens units
10/12/1993	US5253112 Rear conversion lens
10/07/1993	DE4311232A1 Lens system with variable objective for cameras - consists of groups of divergent and convergent lenses, varying of objective focal length is achieved by varying distances between groups
10/06/1993	EP0563615A1 Wide-angle zoom lens
10/05/1993	US5251073 High-aperture wide angle lens
10/05/1993	US5251069 Imaging lens system
10/05/1993	US5250966 Ophthalmic photographing apparatus having a displacement measurement unit
09/1993
09/29/1993	EP0562964A1 Zoom lens utilizing inner focus system
09/28/1993	US5249079 Lens system
09/23/1993	DE4307416A1 Zoom taking lens for photographic or video camera - has two lens groups with positive and negative focal lengths movable relative to one another
09/21/1993	US5247394 Reading zoom lens system
09/21/1993	US5247393 Zoom lens
09/21/1993	US5247324 Real image zoom viewfinder
09/15/1993	EP0560597A1 Zoom lens with aspheric surface
09/15/1993	EP0560124A1 Three field of view refractive afocal telescope
09/14/1993	US5245475 Imaging optical system for endoscopes
09/07/1993	US5243466 Zoom lens
08/1993
08/31/1993	US5241421 Zoom lens
08/31/1993	US5241420 Zoom lens system
08/31/1993	US5241337 Real image viewfinder requiring no field lens
08/31/1993	CA1321725C Zoom lens
08/24/1993	US5239416 Variable power zoom stand magnifier
08/18/1993	EP0555670A1 Telecentric imaging optical system
08/10/1993	US5235466 Zoom lens
08/03/1993	US5233471 Zoom lens
07/1993
07/27/1993	US5231540 Compact zoom lens system
07/27/1993	US5231534 Real image mode variable magnification finder optical system
07/27/1993	US5231444 Camera system including rear conversion lens
07/20/1993	US5229887 Compact zoom lens
07/20/1993	US5229886 Zoom lens
07/20/1993	US5229880 Three field of view refractive afocal telescope
07/13/1993	US5227920 Zoom lens
07/13/1993	US5227919 Zoom lens
07/06/1993	US5225937 Zoom lens
07/06/1993	US5225936 Photo-taking lens having a filter
07/06/1993	US5225927 Real image type finder having cemented lens with at least one resin lens element
06/1993
06/30/1993	EP0549146A1 Zoom lens employing refractive and diffractive optical elements
06/30/1993	EP0548898A1 Zoom lens
06/29/1993	US5223979 Zoom lens system

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