| Patents for G02B 25 - Eyepieces; Magnifying glasses (3,063) |
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| 02/21/1991 | WO1991002193A1 Lamp for magnifying glasses |
| 02/12/1991 | US4991935 Magnifying device for hand-held video display apparatus and the like |
| 01/30/1991 | CN2070457U Adjustable multi-purpose magnifying glass with lighting |
| 01/30/1991 | CN2070155U Endoscope forceps magnifier for ear-hose-throat department |
| 01/29/1991 | US4988175 Optical magnifying system |
| 01/23/1991 | EP0409719A1 Ophthalmic glass intended for binocular spectacles for protection of the eyes against harmful solar rays |
| 01/17/1991 | DE4013798A1 Lens system for eye-piece of terrestrial telescope - consists of negative lens, positive and positive lens group |
| 01/16/1991 | EP0408445A1 Optical device for image magnification |
| 01/13/1991 | CA2020819A1 Optical system for enlarging images |
| 01/10/1991 | DE3920389A1 Imaging system for detecting position of optical fibre ends - has optical lens system between illuminated fibre=optic ends and viewing point |
| 11/14/1990 | EP0396946A2 Magnifying lens device |
| 11/06/1990 | US4968139 Illuminating system for the visual inspection of objects |
| 11/06/1990 | US4968125 Hand-held magnifier device |
| 10/30/1990 | US4966429 Optical scale reading apparatus |
| 10/23/1990 | US4964711 Viewing device |
| 10/03/1990 | CN2063221U Multifunction ruler |
| 09/25/1990 | US4958913 Magnifier lens assembly |
| 09/25/1990 | US4958907 Computer screen magnifier |
| 09/19/1990 | CN2062460U Multi-functional manifier |
| 09/05/1990 | EP0385262A2 Observation apparatus with reflecting object illumination appliance |
| 08/21/1990 | US4949978 Magnifying device |
| 08/08/1990 | CN2060233U Stamp magnifying glass |
| 07/31/1990 | US4944574 Stand magnifier and lens |
| 07/11/1990 | CN2059247U Folding telescope |
| 07/10/1990 | US4940311 Adjustable magnifying device |
| 07/03/1990 | US4938579 Side-viewing mirror device |
| 06/26/1990 | US4936667 Binocular microscope attachment for correction of ametropia |
| 06/19/1990 | US4934773 Miniature video display system |
| 06/12/1990 | US4932765 Optical device providing supplemental wide angle peripheral vision |
| 06/05/1990 | US4930871 Needle threader |
| 05/15/1990 | US4926201 Finder optical system |
| 05/08/1990 | US4923282 Magnifying apparatus and method |
| 05/01/1990 | US4920672 Pendant for viewing medical or physical information |
| 04/19/1990 | DE3903175C1 Device for observation of nystagmus |
| 04/17/1990 | US4917459 Jewelry display device |
| 04/12/1990 | DE3925246A1 Three-section microscope eyepiece - has negative meniscus lens following stop at end towards subject |
| 04/04/1990 | CN2055605U Eye-piece apparatus for relieving watching fatigue |
| 03/07/1990 | EP0357277A2 Optical scale-reading apparatus |
| 03/06/1990 | US4906076 Hand-held collapsible magnifying lens |
| 02/08/1990 | DE3835307A1 Optisches system zum einbau in eine tuer Optical system for installation in a tuer |
| 01/09/1990 | US4892399 Door viewer |
| 01/09/1990 | US4892384 Binocular magnifier |
| 12/20/1989 | CN1038172A Wide vision field portable binoculars |
| 12/13/1989 | EP0345312A1 Portable monocular with high magnification |
| 12/05/1989 | US4884870 Lens structure for a vehicle radio or the like |
| 11/15/1989 | CN2047798U Adjustable magnifying glasses |
| 11/01/1989 | CN2047032U High-polymer two magnifying lens |
| 10/11/1989 | CN2045857U Extracting plastics thread enlarging callipers |
| 09/26/1989 | US4869021 Through-door viewing device |
| 09/26/1989 | CA1259832A1 Viewer for reading and/or displaying information recorded on written or printed tape |
| 09/21/1989 | DE3839928A1 Binocular tube (body) for measuring microscopes |
| 09/12/1989 | US4865438 Spectacles provided with a magnifier having an automatic focusing function |
| 09/06/1989 | CN2044077U Multi-purpose magnifying glass with illumination function |
| 09/05/1989 | US4863241 Printer's loupe |
| 08/22/1989 | US4859032 Hand-held magnifier apparatus |
| 08/16/1989 | CN2042970U Visiting card type magnifying glass |
| 08/08/1989 | US4854680 Zoom view finder |
| 07/13/1989 | DE3833633A1 Wide-angle eyepiece |
| 06/28/1989 | EP0195083B1 Security viewer |
| 06/27/1989 | US4842395 Finder of variable magnification |
| 05/30/1989 | US4834513 Albada type zoom finder |
| 05/23/1989 | US4832470 Inverted galilean telescope type viewfinder system capable of changing over the magnification |
| 05/18/1989 | WO1989004503A1 Portable monocular with high magnification |
| 05/09/1989 | US4828374 Albada type inverted Galileo finder |
| 04/19/1989 | CN2036280U Multipurpose reading magnifier |
| 04/12/1989 | EP0310817A1 Single lens reading glass |
| 03/22/1989 | CN2034700U Magnifying glass with light illumination |
| 03/14/1989 | US4812023 Zoom finder |
| 03/07/1989 | US4810083 Binocular indirect ophthalmoscope |
| 03/02/1989 | DE3824692A1 Simplified microscope |
| 03/01/1989 | CN1031430A 简化式显微镜 Simplify the microscope |
| 02/01/1989 | EP0301801A2 Miniature video display system |
| 01/12/1989 | DE3813992A1 Eyepiece of variable focal length |
| 01/05/1989 | DE3810325A1 Inspection lamp for the illumination of hollow spaces |
| 01/03/1989 | US4795237 Optical inspection method with side-viewing mirror |
| 12/20/1988 | US4792214 Optical magnifying system: 10 x loupe |
| 12/14/1988 | CN88203438U Eye gauge with light source |
| 11/30/1988 | CN88203932U 图象放大器 Image intensifier |
| 11/09/1988 | EP0215118A4 Compact see-through night vision goggles. |
| 10/27/1988 | DE3712616A1 Hand-held reading device (reader) for microfilms |
| 10/26/1988 | CN87210860U Slice type holographic magnifier |
| 10/25/1988 | US4779969 Finding device of variable magnification |
| 10/11/1988 | US4776668 Image focusing ocular piece for a viewing scope including mechanism for accommodating differential expansion |
| 10/05/1988 | EP0285547A2 Illumination device for visually checking objects |
| 09/06/1988 | US4768866 Optical magnifying system: 4× loupe |
| 08/24/1988 | CN87216154U Thin amplifying glass piece |
| 08/16/1988 | US4763997 Viewfinder optical system of inverted Galilean type with great magnification |
| 08/16/1988 | US4763986 Illuminated jeweler's loupe |
| 08/03/1988 | EP0277024A1 Stand magnifier |
| 08/02/1988 | US4761065 To permit viewing through a structure |
| 07/14/1988 | DE3700096A1 Card reading device |
| 07/14/1988 | DE3636623A1 Hand-held reading device for microfilms |
| 07/12/1988 | US4757336 View finder of variable magnification |
| 07/07/1988 | DE3644563A1 Magnifier luminaire |
| 05/31/1988 | US4747675 Ultra wide-angle eyepiece |
| 05/11/1988 | CN87211126U Line magnifying glass |
| 05/10/1988 | US4742818 Soakable eyepiece for endoscopes |
| 05/05/1988 | DE3735771A1 Endoscope with adjustable eyepiece |
| 05/04/1988 | CN87203172U Solar ecilipse observing card |
| 03/15/1988 | US4731625 Finder optical system for a single-lens reflex camera |