| 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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| 08/14/1991 | CN1053742A Laser catheter having diffraction grating for beam shaping |
| 08/13/1991 | US5039215 Optical device including an optical lens and reflectors with reflections in series |
| 08/13/1991 | US5039198 Stereoscopic microsurgery system |
| 08/13/1991 | CA1287541C Optical catheter |
| 08/10/1991 | WO1991012491A2 Electro optical apparatus |
| 08/09/1991 | CA2009711A1 Electro optical apparatus |
| 08/08/1991 | WO1991011743A1 Light source receptacle for fiberoptic illumination |
| 08/07/1991 | EP0439931A1 Method of producing a bending device, in particular for an endoscope or surgical catheter |
| 08/06/1991 | US5036834 Illuminating light introducing device for endoscope |
| 08/01/1991 | DE4102211A1 Endoscope bending guide - has coaxial cylindrical components joined by pair of metal spirals |
| 07/31/1991 | EP0438664A2 Segmented mirror and method of controlling the same |
| 07/31/1991 | CA2035154A1 Laser catheter having diffraction grating for beam shaping |
| 07/30/1991 | US5036517 Target illuminators and systems employing same |
| 07/30/1991 | US5036464 Methods of detecting endoscope insertion direction |
| 07/30/1991 | US5035497 Mirror supporting device |
| 07/30/1991 | US5035472 Integrated multispectral man portable weapon sight |
| 07/30/1991 | US5035060 Method of mapping underground mines |
| 07/25/1991 | WO1991010474A1 A submersible lens fiberoptic assembly |
| 07/24/1991 | EP0438353A1 Dental instrument including laser device and electronic video dental camera |
| 07/24/1991 | CA2029373A1 Segmented mirror and method of controlling the same |
| 07/23/1991 | US5034888 Electronic endoscope apparatus having different image processing characteristics for a moving image and a still image |
| 07/23/1991 | US5034764 Combined eye- and waist-level real image mode finder |
| 07/23/1991 | US5034763 Viewfinder optical system |
| 07/23/1991 | CA2031923A1 Comfortable binocular |
| 07/18/1991 | DE4001010A1 X=ray subject simulator achieving similar intensity distribution - uses image converter output screen mask for artifact-free X=ray photography |
| 07/16/1991 | US5031980 Flexible guides for light energy |
| 07/09/1991 | US5029995 Telescope having image field stabilization by cardanically journalled inverting systems |
| 07/09/1991 | US5029963 Replacement device for a driver's viewer |
| 07/09/1991 | CA1285719C Device and kit for cleaning lenses of telescopes, cameras and the like |
| 07/03/1991 | EP0434793A1 Endoscope with a video device arranged at its distal end. |
| 07/02/1991 | US5028125 Zoom finder of real image type |
| 07/02/1991 | US5028123 Focal-length adjusting assembly for binoculars |
| 07/02/1991 | US5028117 Device for guiding and affixing an endoscope |
| 06/27/1991 | WO1991009334A1 Optical system for multidirectional observation authorizing the selection of a direction |
| 06/27/1991 | WO1991008797A1 Laser laparoscope assembly and method therefor |
| 06/26/1991 | EP0433907A1 Binoculars |
| 06/25/1991 | US5026158 Apparatus and method for displaying and storing impact points of firearm projectiles on a sight field of view |
| 06/25/1991 | US5025804 Endoscope angling mechanism |
| 06/19/1991 | EP0433181A1 Mushroom hook cap for borescope |
| 06/19/1991 | EP0432618A2 Mirror telescope |
| 06/19/1991 | EP0432228A1 Divergence and marking device for target sighting device |
| 06/19/1991 | CN2079304U Hand holding periscope |
| 06/19/1991 | CN2079303U Wearing extensible telescope |
| 06/18/1991 | US5025149 Integrated multi-spectral boresight target generator |
| 06/18/1991 | US5024530 Multichannel telecentric filtered imager |
| 06/11/1991 | US5022723 Panoramic periscope for two spectrum ranges |
| 06/11/1991 | US5022383 Winding type endoscope apparatus |
| 06/11/1991 | US5022382 Endoscope |
| 06/05/1991 | EP0429906A1 Direct vision / side vision exchangeable endoscope |
| 06/05/1991 | CN2078450U Stereoscopic magnifying glass |
| 06/04/1991 | US5020894 Eyepiece and lens cap for a sighting telescope |
| 06/04/1991 | US5020893 Optics assembly of an endoscope |
| 05/29/1991 | EP0428955A2 Device for all-round surveillance of objects, especially military vehicles |
| 05/29/1991 | CN2078008U Superthin self-focusing endoscope |
| 05/28/1991 | US5018506 Fluid controlled biased bending neck |
| 05/22/1991 | EP0428446A1 Simplified observation and laser-treatment endoscope for use in a cavity of a human body |
| 05/22/1991 | EP0427891A1 Aiming device for light weapons |
| 05/21/1991 | US5016995 Radiation gathering and focusing apparatus and devices |
| 05/15/1991 | WO1991007675A1 Flying spot endoscope |
| 05/15/1991 | CA2068729A1 Flying spot endoscope |
| 05/14/1991 | US5016032 Lens shutter camera including zoom lens |
| 05/14/1991 | US5014685 Brake for bending control device of endoscope |
| 05/08/1991 | EP0425649A1 Process for the manufacture of objects with small complex cross-sections |
| 05/08/1991 | CN2076684U Popularization type multipurpose astronomical telescope |
| 05/08/1991 | CN1012599B Alarm compatible with night vision goggles |
| 05/07/1991 | US5014078 Pseudo focal length camera |
| 05/02/1991 | WO1991006026A1 Optical system which allows coincident viewing, illuminating and photographing |
| 05/02/1991 | WO1991006019A1 Gradient index optical systems |
| 05/02/1991 | DE4033979A1 Sound image viewfinder for camera - uses multiple lenses of plastics materials to compensate for optical aberrations |
| 05/02/1991 | DE3933255A1 Direction-stabilised binocular telescope - has prism pairs between each ocular and lens with rotation drives controlled by acceleration sensors detecting body movements |
| 04/30/1991 | US5012273 Lens shutter type of camera including zoom lens |
| 04/30/1991 | US5010875 Intravascular endoscope apparatus |
| 04/23/1991 | US5009655 Hot tip device with optical diagnostic capability |
| 04/23/1991 | US5009494 Wide field all-reflective multiple field of view telescope |
| 04/18/1991 | DE3934546A1 Multi-segment mirror - assembled with specified bonded intermediate strips of same coefficient of expansion |
| 04/17/1991 | EP0422842A2 Bending device |
| 04/17/1991 | EP0422285A2 Telescope |
| 04/17/1991 | CN2075347U Telescope head holder |
| 04/16/1991 | USRE33572 Invisible light beam projector and night vision system |
| 04/16/1991 | US5008527 Optical system employing a transmitting solid corner cube |
| 04/16/1991 | US5007408 Endoscope light source apparatus |
| 04/16/1991 | US5007407 Endoscope having picture image freeze device |
| 04/11/1991 | CA2024483A1 Field-glass |
| 04/10/1991 | EP0421893A2 Portable colour imager borescope |
| 04/09/1991 | US5007091 Procedure and device for facilitating audiovisual observation of a distant object |
| 04/09/1991 | US5005960 For endoscopes |
| 04/09/1991 | US5005957 Objective lens system for endoscopes |
| 04/09/1991 | US5005955 Keplerian zoom finder optical system |
| 04/09/1991 | US5005943 Rigid video-endoscope having a rotatable device for adjusting the orientation of an image relative to an image receiving device |
| 04/03/1991 | EP0420057A1 Focusing of objects of endoscopes |
| 04/02/1991 | US5003964 Endoscope and jig for processing signal conductors of endoscope |
| 03/27/1991 | EP0419343A1 Catheter for viewing in a duct, particularly of the human body |
| 03/27/1991 | EP0418390A1 Optical device |
| 03/27/1991 | CN2074021U Box type folding telescope |
| 03/26/1991 | US5002372 Optical system for amphibious camera and a moving device using the same |
| 03/26/1991 | US5002042 Endoscope apparatus provided with a tip attachment loosening confirming function |
| 03/21/1991 | WO1991003201A1 Endoscope with tv camera |
| 03/20/1991 | EP0418019A1 Wearable binoculars |
| 03/19/1991 | US5000556 Binocular telescope with auxiliary lens system |
| 03/19/1991 | US5000533 Protective sleeves for scope probes for use in high pressure or vacuum environments |