Patents
Sitemap › G02 - Optics › G02B - Optical elements, systems, or apparatus › G02B 9 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or
Patents for G02B 9 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or (5,791)
12/1981
12/01/1981US4303314 Compact telephoto lens
12/01/1981US4303313 Photographic lens system
11/1981
11/24/1981CA1112924A1 Refractor optical system
11/17/1981US4300817 Projection lens
11/03/1981US4298252 Rear stop type lens system
10/1981
10/13/1981US4294511 Connecting optical system for light guides
10/06/1981US4293197 Telephoto lens with small telephoto ratio
09/1981
09/29/1981US4291952 Gauss type lens system
09/15/1981US4289385 Photographic lens with rear stop diaphragm
09/15/1981US4289377 Projecting apparatus
08/1981
08/25/1981US4285579 Copying lens system
08/25/1981US4285578 Photo eyepiece for endoscopes
08/04/1981US4281908 Tesser type objective lens system having a rear aperture stop
07/1981
07/07/1981US4277149 Modified gauss type lens system
06/1981
06/23/1981US4274711 Bright photographic lens system with rear stop diaphragm
06/16/1981US4273415 Optical objective
06/03/1981EP0029755A1 Stigmatic optical device for transmission/reception of coherent radiation and an optical read/write head including such a device
06/02/1981US4270858 Scanning and projecting device
06/02/1981US4270842 Optical system for forming an image of the retina
05/1981
05/26/1981US4269485 Method for focusing an objective lens of endoscope
05/26/1981US4269478 Constant-speed scanning lens system
05/26/1981US4269477 Symmetrical objective
05/19/1981CA1101252A1 Optical transmission system and a coupling element for the optical transmission system, and a lens suitable for the coupling element
05/12/1981US4266848 Optical system for night-vision glasses
04/1981
04/28/1981US4264139 Lens system for facsimile
04/28/1981US4264138 Photographic lens system
04/07/1981US4260223 Lens system for photographing objects from infinity to a very short distance
03/1981
03/24/1981US4257679 Reproducing objective for video disks
03/24/1981US4257678 Wide angle photographic lens
03/17/1981US4256374 Write and read objective lens for high density storage
01/1981
01/27/1981US4247171 Compact photographic lens with large aperture
12/1980
12/23/1980US4240705 Five element photographic objective
12/23/1980US4240703 Telephoto lens
12/16/1980US4239340 Conversion lens system
12/10/1980EP0020006A1 Four-component lens and display apparatus including this lens
12/02/1980US4236789 Projection optical system
11/1980
11/25/1980US4235521 Photographic lens system
11/18/1980US4234243 Reducing lens system
11/18/1980US4234242 Gauss type photographic lens
11/11/1980US4232945 Photographic camera lens system having a short total length
11/11/1980US4232944 Standard photographic lens
11/11/1980US4232943 Modified Petzval lens
11/04/1980US4231636 Variable field curvature lens system
10/1980
10/15/1980EP0017466A1 A write and read objective lens
09/1980
09/23/1980US4223982 Semi-wide angle photographic lens having short overall length
09/16/1980US4222634 Wide angle objective for examination of the eye
08/1980
08/05/1980US4215919 Refractor optical system
08/05/1980US4215914 Optical system having a radial difference in refractive index
07/1980
07/29/1980US4214816 High speed telephoto lens system
07/29/1980US4214815 Semi-wide angle objective lens
07/29/1980US4214814 Variable soft focus lens system
07/22/1980US4213674 Tessar form photographic lens
07/15/1980US4212517 Photographic lens system
07/08/1980US4211472 Wide angle objective lens system
06/1980
06/17/1980US4208088 Multi-axial optical objective for an optical read head in a facsimile system
06/10/1980US4206976 Compact telephoto lens
06/10/1980US4206975 Retrofocus type wide-angle lens system
06/10/1980US4206974 High resolution objective lens system
06/10/1980US4206973 Retrofocus type wide-angle objective
06/10/1980US4206972 High resolving objective covering a wide spectral r nge
06/10/1980US4206971 Rear conversion lens
06/10/1980US4206970 Chromatically corrected virtual image visual display
05/1980
05/27/1980US4204747 Method of focussing in a photographic lens system
04/1980
04/29/1980US4200357 Photo eyepiece for microscopes
03/1980
03/11/1980US4192579 Behind-stop type lens system for photographic cameras
03/04/1980US4191462 Fixed focus exposure control apparatus with reverse spherical aberration corrective characteristic
02/1980
02/26/1980US4190324 Achromatic objective lens
02/19/1980US4189214 Fourier transform lens system
02/19/1980US4189211 Wide angle telecentric projection lens assembly
02/12/1980US4188092 Retrofocus type wide-angle objective lens
01/1980
01/29/1980US4185893 Zoom lenses
01/15/1980US4183636 Projection system
01/08/1980US4182550 Modified gauss type lens system
01/08/1980US4182549 Compact wide angle lens
12/1979
12/11/1979CA1067736A1 Microscope condenser
12/04/1979US4176920 Ophthalmoscopic system with a wide angle objective lens
12/04/1979US4176915 Wide angle lens
12/04/1979US4176914 Compact retrofocus wide angle objective
12/04/1979US4176913 Telephoto lens with large relative aperture
11/1979
11/06/1979US4173396 Copying lens
08/1979
08/28/1979US4165917 Objective for endoscopes
08/28/1979US4165916 Objective lens system with close object focusing aberration correction
07/1979
07/31/1979US4162827 Wide angle objective for ophthalmoscopic instrument
07/17/1979US4161350 Telescopic photographing lens system
07/17/1979CA1058436A1 Elongated rod lens optical system
06/1979
06/26/1979US4159166 Beam splitting lens assembly
05/1979
05/15/1979US4154509 Miniaturized semi-wide-angle photographic lens
05/15/1979US4154508 Rear conversion lens
05/01/1979US4152050 Shift lens system
03/1979
03/20/1979US4145116 Large aperture ultra wide angle photographic lens system
03/20/1979US4145108 Photo eyepiece for microscopes
03/13/1979US4143945 Small retro-focus wide angle photographic lens system
03/13/1979US4143944 Large aperture wide-angle photographic lens
03/13/1979CA1050314A1 Projection lens system
02/1979
02/13/1979US4139267 Lens having high resolving power
02/13/1979US4139266 Medium magnification objective for video disks
02/13/1979US4139265 Modified gauss type photographic lens
12/1978
12/26/1978US4131335 Photographic lens system
12/12/1978US4129359 Extending attachment lens
12/05/1978USRE29856 Projection lens for mask pattern printing
1 ... 47 48 49 50 51 52 53 54 55 56 57 58