G02B 7/343
Using light beam separating prisms
Official title: {using light beam separating prisms}
G02B7/343 (Using light beam separating prisms) appears on 62 US grants and 30 published applications in this corpus.
Search patents in G02B- Granted patents
- 62
- Published applications
- 30
- Assignees
- 26
- Inventors
- 87
- Latest grant
- 8 Oct 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 2 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 5 |
| 2007 | 0 | 0 |
| 2008 | 2 | 0 |
| 2009 | 2 | 1 |
| 2010 | 1 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 4 |
| 2013 | 1 | 2 |
| 2014 | 6 | 2 |
| 2015 | 0 | 4 |
| 2016 | 1 | 2 |
| 2017 | 4 | 0 |
| 2018 | 2 | 1 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Low-light autofocus technique8 Oct 2024US 12,114,078 B2Google Inc.
- Image acquisition device and image acquisition method5 Mar 2024US 11,921,277 B2Hamamatsu Photonics K.K.
- System and method for measuring the focus state of an optical instrument1 Feb 2022US 11,237,375 B2Consiglio Nazionale Delle Ricerche - Cnr
- Image capturing apparatus and focusing method thereof21 May 2019US 10,298,833 B2Hamamatsu Photonics K.K.
- Focus adjustment apparatus, control method of focus adjustment apparatus, and imaging apparatus30 Oct 2018US 10,116,857 B2Canon Kabushiki Kaisha
- Low-light autofocus technique26 Dec 2024US 2024/0430577 A1Google Inc.
- Low-light autofocus technique15 Sep 2022US 2022/0294964 A1Google Inc.
- Image acquisition device and image acquisition method18 Mar 2021US 2021/0080711 A1Hamamatsu Photonics K.K.
- System and method for measuring the focus state of an optical instrument7 Nov 2019US 2019/0339504 A1Consiglio Nazionale Delle Ricerche - Cnr
- Focus adjustment apparatus, control method of focus adjustment apparatus, and imaging apparatus15 Mar 2018US 2018/0077340 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Focus detecting device53US 4,849,782 ACanon Kabushiki Kaisha · 1989
- Focus detecting device for single-lens reflex cameras48US 4,083,056 AAsahi Kogaku Kogyo Kabushiki Kaisha · 1978
- Fast computational camera based on two arrays of lenses47US 7,956,924 B2Adobe Systems Incorporated · 2011
- Focus detecting device31US 4,560,863 ACanon Kabushiki Kaisha · 1985
- Focus detecting system detecting position of images formed from the center and periphery of the optical axis31US 4,563,576 ACanon Kabushiki Kaisha · 1986