G02B 26/04
By periodically varying the intensity of light
Official title: by periodically varying the intensity of light, e.g. using choppers (shutters, diaphragms for cameras G03B9/00; devices for eliminating or reducing the effect of flicker in projection systems G03B21/40)
G02B26/04 (By periodically varying the intensity of light) appears on 289 US grants and 238 published applications in this corpus.
Search patents in G02B- Granted patents
- 289
- Published applications
- 238
- Assignees
- 204
- Inventors
- 584
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 7 | 0 |
| 1988 | 7 | 0 |
| 1989 | 9 | 0 |
| 1990 | 7 | 0 |
| 1991 | 8 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 7 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 6 | 0 |
| 2001 | 5 | 3 |
| 2002 | 4 | 5 |
| 2003 | 3 | 3 |
| 2004 | 3 | 6 |
| 2005 | 4 | 2 |
| 2006 | 5 | 10 |
| 2007 | 1 | 4 |
| 2008 | 6 | 8 |
| 2009 | 4 | 9 |
| 2010 | 10 | 3 |
| 2011 | 6 | 9 |
| 2012 | 0 | 8 |
| 2013 | 3 | 8 |
| 2014 | 6 | 11 |
| 2015 | 12 | 22 |
| 2016 | 18 | 22 |
| 2017 | 19 | 26 |
| 2018 | 19 | 19 |
| 2019 | 19 | 6 |
| 2020 | 12 | 11 |
| 2021 | 8 | 7 |
| 2022 | 6 | 11 |
| 2023 | 6 | 8 |
| 2024 | 13 | 8 |
| 2025 | 4 | 8 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Micro assembled LED displays and lighting elements254US 9,520,537 B2X-Celeprint Limited · 2016
- Micro-mechanical optical shutter230US 5,459,602 ATexas Instruments Incorporated · 1995
- Micro assembled LED displays and lighting elements109US 9,437,782 B2X-Celeprint Limited · 2016
- Micro assembled LED displays and lighting elements104US 9,444,015 B2X-Celeprint Limited · 2016
- Miniature display device91US 4,383,255 ACentre Electronique Horloger S. A. · 1983