| 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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| 07/18/1989 | US4849626 Fiber optic bore inspection probe |
| 07/18/1989 | US4848903 Method and apparatus for measuring the optical axis of a guide beam projector |
| 07/18/1989 | US4848887 Fixed focus binoculars |
| 07/18/1989 | US4848817 Hook forceps apparatus for industrial endoscopes |
| 07/18/1989 | CA1257490A1 Fiber scope |
| 07/11/1989 | US4846573 Shape memory effect alloy pull wire articulator for borescopes |
| 07/11/1989 | US4846155 Video endoscope apparatus with automatic focusing control |
| 07/11/1989 | US4846154 Dual view endoscope |
| 07/05/1989 | CN1033697A Primary reflector for a reflector telescope |
| 07/04/1989 | US4845554 Automatic light adjusting system for an endoscope using an externally fitter camera |
| 07/04/1989 | US4844595 Viewing device for flotation body |
| 07/04/1989 | US4844071 Endoscope coupler device |
| 07/04/1989 | US4844052 Apparatus for transmitting liquid and gas in an endoscope |
| 07/04/1989 | CA1256724A1 Infrared afocal refractor telescope |
| 06/29/1989 | WO1989005990A1 Telemicroscopic apparatus for sighting and bi-level viewing |
| 06/28/1989 | CN1004652B Viewing apparatus with adjustable alignment marker support |
| 06/27/1989 | US4842395 Finder of variable magnification |
| 06/27/1989 | US4842252 Rapidly extendable jack |
| 06/27/1989 | US4841952 Endoscope with an optical system |
| 06/27/1989 | US4841950 Bending device for an endoscope |
| 06/20/1989 | US4840474 Furnace viewing system |
| 06/20/1989 | US4840458 Fixed shutter construction for a split-sphere observatory dome |
| 06/20/1989 | US4839926 Cap with binoculars |
| 06/13/1989 | US4838672 Function-conversion device for ground monocular telescope |
| 06/13/1989 | US4838247 Dual-view arthroscope |
| 06/13/1989 | US4838246 Application part for an endoscope |
| 06/08/1989 | DE3740417A1 Endoscope optics with a distal window held by a bonding compound |
| 06/08/1989 | DE3740416A1 Endoscope optics with a distal window |
| 06/06/1989 | US4837769 Phase conjugated slab laser designator |
| 06/06/1989 | US4837451 Ring array imaging system |
| 06/06/1989 | US4836666 Compensation for primary reflector wavefront error |
| 06/06/1989 | US4836188 Instrument for illuminated sterescopic viewing of body cavities |
| 06/06/1989 | CA1255137A1 Infrared optical system x6/x2 periscope telescope |
| 06/01/1989 | WO1989004980A1 Main mirror for a reflecting telescope |
| 06/01/1989 | WO1989004629A1 Television camera system for use in sterile areas |
| 05/31/1989 | EP0233214B1 Image intensifier binocular |
| 05/30/1989 | US4834518 Instrument for visual observation utilizing fiber optics |
| 05/30/1989 | US4834513 Albada type zoom finder |
| 05/24/1989 | EP0317493A1 Primary mirror for a mirror telescope |
| 05/24/1989 | EP0316794A2 Housing for an auxiliary device |
| 05/24/1989 | EP0316554A1 Connecting device for endoscopes |
| 05/24/1989 | DE3838168A1 Optical picture transmission system |
| 05/24/1989 | DE3739005A1 Fernsehkamerasystem zur verwendung im sterilbereich Television camera system for use in the sterile area |
| 05/23/1989 | US4832470 Inverted galilean telescope type viewfinder system capable of changing over the magnification |
| 05/18/1989 | DE3837770A1 Device for positioning the auxiliary mirror of a telescope |
| 05/17/1989 | EP0316244A1 Video equipped endoscope with needle probe |
| 05/17/1989 | EP0315853A1 Telescopic rifle sight with extended range of adjustment |
| 05/16/1989 | US4831456 Imaging apparatus using a solid-state imaging element having a substrate |
| 05/16/1989 | US4830491 Cavity scope |
| 05/16/1989 | US4830458 Apparatus for connecting an endoscope or technoscope comprising light-guiding fiber-optic bundles to a light guiding cable and a method for the manufacture thereof |
| 05/11/1989 | DE3735898A1 Reflexvisier zur zieleinrichtung von waffen Reflex sight for target device of weapons |
| 05/10/1989 | EP0315379A2 Optical gun sight |
| 05/10/1989 | EP0094964B1 A catheter assembly |
| 05/09/1989 | US4828378 Night vision viewing systems |
| 05/09/1989 | US4828377 Telescope aiming device |
| 05/09/1989 | US4828374 Albada type inverted Galileo finder |
| 05/09/1989 | US4828348 Fiber optic telescope |
| 05/09/1989 | US4827908 Endoscopic apparatus |
| 05/05/1989 | WO1989004008A1 Compact see-through night vision goggles |
| 05/02/1989 | US4827130 Selectable field infrared imager and lens set |
| 05/02/1989 | US4826317 Split-image optical system for the observation of surface structures |
| 05/02/1989 | US4826304 Adjustable optical mounting assembly |
| 05/02/1989 | US4826302 Image intensifier binocular |
| 05/02/1989 | US4826281 Optical cable with bending mechanism |
| 05/02/1989 | US4825850 Contamination protection system for endoscope control handles |
| 05/02/1989 | CA1253381A1 Telescopic sight with erector lens focus adjustment |
| 04/26/1989 | CN2036675U Endoscope for enclosed type electric apparatus |
| 04/26/1989 | CN1032528A Night vision goggle compatible alarm |
| 04/25/1989 | US4825259 Adapter tip for remote measuring device |
| 04/25/1989 | US4824235 Optical occluder |
| 04/25/1989 | US4824225 Illumination optical system for an endoscope |
| 04/25/1989 | US4824205 Apparatus for improving image formed by imaging optical system |
| 04/18/1989 | US4822994 Small arms sight for use during daylight and nighttime conditions |
| 04/18/1989 | US4822156 Reflecting telescope |
| 04/18/1989 | US4822154 Improvements in or relating to borescopes |
| 04/12/1989 | EP0311000A1 Low reflection optical reticle and method of making same |
| 04/12/1989 | EP0310640A1 Relay lens system. |
| 04/11/1989 | US4820043 Technoscope for determining the extent of damage to an object |
| 04/11/1989 | US4820031 Binocular periscope viewing device including triple prism for image splitting and elongate head column |
| 04/04/1989 | US4819065 Electronic endoscope apparatus |
| 04/04/1989 | US4818086 Focus lock for binoculars |
| 04/04/1989 | US4818065 Optical device particularly useful as as night vision goggles |
| 04/04/1989 | CA1251964A1 Image fibers |
| 03/29/1989 | EP0309395A1 Telescope |
| 03/28/1989 | US4815833 Objective for endoscopes and process for its production |
| 03/22/1989 | CN2034699U Light blocking device for the unused eye in single-eye observation |
| 03/15/1989 | CN2034236U Water-level remote-monitoring peeping glass for industrial boiler |
| 03/14/1989 | US4812864 Camera and two-element viewfinder |
| 03/14/1989 | US4812023 Zoom finder |
| 03/08/1989 | EP0305369A1 Reflector telescope. |
| 03/07/1989 | US4811061 Polychromatic mutual alignment device for an aiming apparatus |
| 03/07/1989 | US4809680 Endoscope tip |
| 02/28/1989 | US4807598 Endoscope having fixing and expanding members |
| 02/28/1989 | US4807597 Fiberscope |
| 02/28/1989 | US4807594 Adapter assembly for endoscopic video camera |
| 02/23/1989 | DE3826694A1 Verfahren und vorrichtung zur bestimmung der ziellinie und des massstabsfaktors eines optischen systems Method and device for determination of the finish line and to scale factor of an optical system |
| 02/22/1989 | EP0304380A2 Borescope or endoscope with fluid dynamic muscle |
| 02/22/1989 | CN2033127U Tube included angle-changable periscopic sight |
| 02/21/1989 | US4807026 Electronic image pickup device for endoscopes |
| 02/21/1989 | US4806007 Optical gun sight |