G03B 27/72
Controlling or varying light intensity, spectral composition, or exposure time in photographic
Official title: Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
G03B27/72 (Controlling or varying light intensity, spectral composition, or exposure time in photographic) appears on 975 US grants and 231 published applications in this corpus.
Search patents in G03B- Granted patents
- 975
- Published applications
- 231
- Assignees
- 209
- Inventors
- 1,186
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 21 | 0 |
| 1977 | 22 | 0 |
| 1978 | 29 | 0 |
| 1979 | 31 | 0 |
| 1980 | 29 | 0 |
| 1981 | 29 | 0 |
| 1982 | 27 | 0 |
| 1983 | 19 | 0 |
| 1984 | 17 | 0 |
| 1985 | 26 | 0 |
| 1986 | 27 | 0 |
| 1987 | 42 | 0 |
| 1988 | 30 | 0 |
| 1989 | 41 | 0 |
| 1990 | 42 | 0 |
| 1991 | 56 | 0 |
| 1992 | 40 | 0 |
| 1993 | 25 | 0 |
| 1994 | 29 | 0 |
| 1995 | 27 | 0 |
| 1996 | 15 | 0 |
| 1997 | 37 | 0 |
| 1998 | 47 | 0 |
| 1999 | 31 | 0 |
| 2000 | 24 | 0 |
| 2001 | 20 | 5 |
| 2002 | 12 | 13 |
| 2003 | 11 | 12 |
| 2004 | 17 | 15 |
| 2005 | 12 | 32 |
| 2006 | 13 | 32 |
| 2007 | 16 | 15 |
| 2008 | 15 | 20 |
| 2009 | 16 | 25 |
| 2010 | 9 | 17 |
| 2011 | 14 | 15 |
| 2012 | 15 | 3 |
| 2013 | 11 | 5 |
| 2014 | 8 | 1 |
| 2015 | 4 | 1 |
| 2016 | 2 | 1 |
| 2017 | 1 | 3 |
| 2018 | 4 | 6 |
| 2019 | 2 | 3 |
| 2020 | 5 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 2 |
| 2023 | 0 | 2 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G03B 27/73Controlling exposure by variation of spectral composition530
- G03B 27/80In dependence upon automatic analysis of the original115
- G03B 27/725Optical projection devices wherein the contrast is controlled electrically70
- G03B 27/727Optical projection devices wherein the contrast is controlled optically36
- G03B 27/722When the reproduction scale is changed17
- G03B 27/74Positioning exposure meters in the apparatus15
Recent patents
- Laser pulse selection and energy level control29 Sep 2026US 12,749,863 B2Alcon Inc.
- Image exposure device, image exposure method, and program4 Aug 2026US 12,699,312 B2FUJIFILM Corporation
- Image exposure device, image exposure method, and program14 Jan 2025US 12,197,116 B2FUJIFILM Corporation
- Image exposure device, image exposure method, and program23 Jul 2024US 12,047,684 B2FUJIFILM Corporation
- Apparatus for optically capturing a screen10 Aug 2021US 11,086,029 B2Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e. V.
- Mask absorber layers for extreme ultraviolet lithography19 Sep 2024US 2024/0312783 A1The Regents of the University of California
- Image exposure device, image exposure method, and program15 Jun 2023US 2023/0185179 A1FUJIFILM Corporation
- Laser pulse selection and energy level control8 Jun 2023US 2023/0178953 A1Alcon Inc.
- Image exposure device, image exposure method, and program17 Nov 2022US 2022/0368821 A1FUJIFILM Corporation
- Image exposure device, image exposure method, and program2 Jun 2022US 2022/0171274 A1FUJIFILM Corporation
Most cited
By later US patents
- Methods of collecting photometric image data and determining light exposure by extracting feature image data from an original image158US 5,463,470 AFuji Photo Film Co., Ltd. · 1995
- Auto resoration of a print146US 6,304,345 B1Eastman Kodak Company · 2001
- Photograph printing method121US 5,227,837 AFuji Photo Film Co., Ltd. · 1993
- Method of determining an exposure amount using optical recognition of facial features118US 5,629,752 AFuji Photo Film Co., Ltd. · 1997
- Standardized color calibration of electronic imagery117US 5,148,288 ASavitar, Inc. · 1992