| Patents for G02B 23 - Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices (16,751) |
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| 05/30/1990 | EP0370191A2 Biconvex rodlens |
| 05/30/1990 | CN1042612A Camera view finder |
| 05/29/1990 | US4929070 Illumination optical system for endoscopes |
| 05/29/1990 | US4929052 Flexible guides for infra-red energy |
| 05/23/1990 | EP0369937A1 Endoscope, in particular an arthroscope |
| 05/22/1990 | US4927257 Receiving a focused image |
| 05/22/1990 | US4927256 Multispectral optical device comprising mirrors |
| 05/22/1990 | US4927252 Newtonian telescope assembly with rotary flat mirror |
| 05/22/1990 | US4927251 Single pass phase conjugate aberration correcting imaging telescope |
| 05/22/1990 | US4927237 Universal night vision goggle adapter |
| 05/22/1990 | US4927222 Dual optical fiber device |
| 05/22/1990 | US4926560 Shade for telescopic sight |
| 05/16/1990 | EP0203158B1 Peripheral vision guidance display |
| 05/15/1990 | US4926257 Stereoscopic electronic endoscope device |
| 05/15/1990 | US4926201 Finder optical system |
| 05/15/1990 | US4924856 Endoscope light source apparatus |
| 05/15/1990 | US4924854 Detection devices |
| 05/15/1990 | US4924853 Stereoscopic medical viewing device |
| 05/09/1990 | EP0367197A2 Dual band/dual FOV infrared telescope |
| 05/08/1990 | US4923293 Optical system for masking out a component region of an image |
| 05/08/1990 | US4923276 Tapered optical fiber telescope, tracking system apparatus and method incorporating tapered optical fiber telescopes |
| 05/03/1990 | WO1990004350A1 Endoscope |
| 05/02/1990 | EP0365948A1 Thermal imager with detector alignment |
| 05/01/1990 | US4921339 Dual mirror viewing system |
| 05/01/1990 | US4921326 Fiber optic probe |
| 04/30/1990 | CA2001919A1 Optical system |
| 04/25/1990 | EP0364951A2 Continuous zoom all-reflective optical system |
| 04/25/1990 | EP0364578A1 Inspection apparatus for hot furnace |
| 04/24/1990 | US4919621 Plug and socket type connector for connecting an endoscope to supply units |
| 04/24/1990 | US4919523 Telescope motorized drive attachment |
| 04/24/1990 | US4919114 Endoscope provided with flexible signal wires |
| 04/24/1990 | US4919113 Method of cleaning scope end of endoscope and endoscope with scope end cleaning mechanism |
| 04/24/1990 | US4919112 Low-cost semi-disposable endoscope |
| 04/24/1990 | US4918881 Observation dome for buildings |
| 04/24/1990 | US4918775 Portable safety device combination for outdoor use |
| 04/24/1990 | CA2001070A1 Telescope operating system |
| 04/19/1990 | WO1990004199A1 Camera view finder |
| 04/19/1990 | DE3933159A1 Introductory endoscopic section - with optical fibre bunches for image with lens and for light |
| 04/18/1990 | EP0363851A1 Camera view finder |
| 04/18/1990 | EP0363376A1 Procedure and device for facilitating audiovisual observation of a distant object |
| 04/18/1990 | CN1007661B Combined night/day viewing apparatus having large field |
| 04/17/1990 | US4917934 Telescope mirror blank and method of production |
| 04/17/1990 | US4917609 Arrangement for firing simulation and battle simulation |
| 04/17/1990 | US4917457 In an optical attachment |
| 04/11/1990 | EP0363118A2 Dual-view arthroscope |
| 04/10/1990 | US4916534 Endoscope |
| 04/10/1990 | US4916533 Endoscope insertion direction detecting method |
| 04/10/1990 | US4915487 Heads up display for night vision goggle |
| 04/05/1990 | WO1990003588A1 Optical device |
| 04/04/1990 | CN1007459B Combinde night/day viewing apparatus |
| 04/03/1990 | US4913541 Folding binoculars |
| 04/03/1990 | US4913538 Folding binoculars |
| 04/03/1990 | US4913369 Reel for borescope insertion tube |
| 03/28/1990 | EP0360251A2 Endoscope having illuminance ratio adjusting device between moving and still picture images |
| 03/27/1990 | US4911147 Endoscope with a shock absorber |
| 03/21/1990 | EP0359634A1 Driving episcope with night and day observation for armoured vehicles |
| 03/21/1990 | CN2054781U Submersible glasses for directly observing underwater situation |
| 03/20/1990 | US4910590 Endoscope insertion direction detection method |
| 03/20/1990 | US4910401 LWIR sensor system with improved clutter rejection |
| 03/20/1990 | US4909614 Variable magnification finder |
| 03/20/1990 | US4909600 For use in a video system |
| 03/20/1990 | CA1266771A1 Sighting device |
| 03/15/1990 | DE3922301A1 Flexible laser energy transmission system for medical endoscope - uses optical-fibre coupling with distal clamp and length compensation system |
| 03/14/1990 | EP0358060A2 Binoculars |
| 03/14/1990 | EP0357845A1 Solid state reticle projector for a weapon sight |
| 03/13/1990 | US4908567 Power supply system for an optical inspection apparatus |
| 03/08/1990 | WO1990002353A1 Light-guiding device for medical treatment |
| 03/07/1990 | EP0356891A2 Turning angle mirror for periscopes |
| 03/06/1990 | US4906078 Variable magnification viewfinder |
| 03/06/1990 | US4905936 Airborne optical sighting device moving at high speed |
| 02/27/1990 | US4905082 Rigid video endoscope having a detachable imaging unit |
| 02/27/1990 | US4904073 Fractal tiling for multiple mirror optical devices |
| 02/27/1990 | US4904071 Equatorial mounting system and drive therefor |
| 02/27/1990 | CA1266304A1 Catheter system for controlled removal by radiant energy of biological obstructions |
| 02/22/1990 | DE3828413A1 Optical system of a refractor having short focal length |
| 02/20/1990 | US4903133 Ocular attachment for an endoscope |
| 02/20/1990 | US4902129 Orientation indicator for a flexible fiberscope or endoscope including method of manufacture |
| 02/20/1990 | US4902115 Optical system for endoscopes |
| 02/15/1990 | DE3827829A1 Viewing optics for armoured vehicles, such as surveillance periscope or telescopic sight |
| 02/14/1990 | CN2052909U Periscope with changeable angle |
| 02/13/1990 | US4901144 Video endoscope aperture wheel drive system |
| 02/13/1990 | US4901142 Video scope system |
| 02/13/1990 | US4900122 Device for a fiber-optic guide |
| 02/13/1990 | US4899731 Endoscope |
| 02/01/1990 | DE3914099C1 Endoscope guide and retainer - has releasable adaptor fitting inspection aperture allowing fixing for inspection of places in appts. difficult of access |
| 01/31/1990 | EP0353138A1 Multispectral mirror device |
| 01/31/1990 | EP0352952A2 Optical apparatus |
| 01/30/1990 | US4896986 Endoscope connecting apparatus |
| 01/23/1990 | US4895433 Visual field converting optical system |
| 01/23/1990 | US4895431 Method of processing endoscopic images |
| 01/23/1990 | US4895138 Endoscope with a detachable observation unit at its distal end |
| 01/18/1990 | DE3824268A1 Telescopic sight having cross-lines grid |
| 01/17/1990 | EP0350603A2 Endoscope having a device for measuring crack depths mounted thereon |
| 01/16/1990 | US4894715 Electronic endoscope |
| 01/16/1990 | US4894495 Watertight electrical contact units |
| 01/16/1990 | US4893913 Steromicroscope having stabilizer for preventing tipping of eyepiece assemblies |
| 01/16/1990 | US4893912 Device for observing a hot reaction space in the interior of a reactor operating at increased pressure |
| 01/16/1990 | US4893412 Weapon sighting structure |
| 01/03/1990 | EP0349511A2 Method for cooling an optical system |
| 01/03/1990 | EP0348566A1 Spotting system for binoculars and telescopes |