G02B 27/12
Operating by refraction only
Official title: operating by refraction only
G02B27/12 (Operating by refraction only) appears on 989 US grants and 1,025 published applications in this corpus.
Search patents in G02B- Granted patents
- 989
- Published applications
- 1,025
- Assignees
- 565
- Inventors
- 2,151
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 6 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 10 | 0 |
| 1996 | 9 | 0 |
| 1997 | 9 | 0 |
| 1998 | 19 | 0 |
| 1999 | 14 | 0 |
| 2000 | 12 | 0 |
| 2001 | 20 | 6 |
| 2002 | 27 | 27 |
| 2003 | 24 | 21 |
| 2004 | 19 | 22 |
| 2005 | 17 | 37 |
| 2006 | 24 | 31 |
| 2007 | 20 | 23 |
| 2008 | 20 | 18 |
| 2009 | 18 | 17 |
| 2010 | 18 | 21 |
| 2011 | 11 | 16 |
| 2012 | 17 | 32 |
| 2013 | 21 | 34 |
| 2014 | 26 | 37 |
| 2015 | 41 | 48 |
| 2016 | 43 | 71 |
| 2017 | 45 | 57 |
| 2018 | 63 | 56 |
| 2019 | 61 | 75 |
| 2020 | 49 | 79 |
| 2021 | 42 | 55 |
| 2022 | 58 | 67 |
| 2023 | 51 | 65 |
| 2024 | 56 | 50 |
| 2025 | 41 | 29 |
| 2026 | 34 | 31 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Image sensor including color separating lens array and electronic apparatus including the image sensor15 Sep 2026US 12,736,826 B2Samsung Electronics Co., Ltd.
- Balanced heterodyne laser interferometer with optical axis shift1 Sep 2026US 12,723,864 B2Seiko Epson Corporation
- Image sensor including color separating lens array and electronic apparatus including the image sensor1 Sep 2026US 12,724,282 B2Samsung Electronics Co., Ltd.
- Optical coupling and mode-selective separation or superposition of optical fields25 Aug 2026US 12,717,086 B2Karlsruher Institut für Technologie
- Multi-aperture projector25 Aug 2026US 12,717,153 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Optical engine system, display method and display apparatus for display screen, device, medium, and product1 Oct 2026US 2026/0299311 A1Ningbo Top Micron Semiconductor Co. Ltd.
- Beam splitter and beam splitter manufacturing method17 Sep 2026US 2026/0277011 A1Hamamatsu Photonics K.K.
- Optical system, optical device, and method for manufacturing optical system17 Sep 2026US 2026/0277012 A1Nikon Corporation
- Image pickup module, method for manufacturing image pickup module, and imaging device27 Aug 2026US 2026/0255041 A1Canon Kabushiki Kaisha
- Semiconductor laser device and method for producing a semiconductor laser device13 Aug 2026US 2026/0237973 A1ams-OSRAM International GmbH
Most cited
By later US patents
- Image combining system for eyeglasses and face masks626US 5,886,822 AThe Microoptical Corporation · 1999
- Uniform illumination system488US 7,072,096 B2Digital Optics International Corporation · 2006
- Optics arrangements including light source arrangements for an active matrix liquid crystal image generator365US 5,808,800 ADisplaytech, Inc. · 1998
- Uniform illumination system254US 7,400,439 B2Digital Optics International Corporation · 2008
- Reflective LCD projection system using wide-angle Cartesian polarizing beam splitter249US 6,486,997 B13M Innovative Properties Company · 2002