H04N 1/02865
Using an array of light sources or a combination of such arrays
Official title: {using an array of light sources or a combination of such arrays, e.g. an LED bar}
H04N1/02865 (Using an array of light sources or a combination of such arrays) appears on 321 US grants and 303 published applications in this corpus.
Search patents in H04N- Granted patents
- 321
- Published applications
- 303
- Assignees
- 104
- Inventors
- 520
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 7 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 8 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 4 |
| 2002 | 3 | 8 |
| 2003 | 5 | 3 |
| 2004 | 7 | 16 |
| 2005 | 8 | 14 |
| 2006 | 7 | 9 |
| 2007 | 3 | 13 |
| 2008 | 5 | 16 |
| 2009 | 14 | 28 |
| 2010 | 18 | 26 |
| 2011 | 10 | 30 |
| 2012 | 23 | 18 |
| 2013 | 34 | 25 |
| 2014 | 35 | 12 |
| 2015 | 20 | 10 |
| 2016 | 7 | 7 |
| 2017 | 8 | 12 |
| 2018 | 10 | 17 |
| 2019 | 14 | 6 |
| 2020 | 5 | 2 |
| 2021 | 6 | 5 |
| 2022 | 3 | 3 |
| 2023 | 2 | 9 |
| 2024 | 7 | 3 |
| 2025 | 3 | 4 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical line sensor3 Feb 2026US 12,541,096 B2Vienex Corporation
- Fixed retail scanner with multi-port network switch and related methods19 Aug 2025US 12,393,801 B2Datalogic IP Tech S.R.L.
- Fixed retail scanners with illumination assemblies having different sub-groups of LEDs and related method12 Aug 2025US 12,387,070 B2Datalogic IP Tech S.R.L.
- Document reader having an optical filter with variable light transmission5 Aug 2025US 12,381,990 B2E-Seek, Inc.
- Image reading apparatus and image forming apparatus24 Dec 2024US 12,177,402 B2Canon Kabushiki Kaisha
- Image reading device and image forming apparatus23 Jul 2026US 2026/0214175 A1
- Image forming apparatus18 Jun 2026US 2026/0169409 A1KYOCERA Document Solutions Inc.
- Illumination device, image reading device, image forming apparatus, inspection device, and illumination method8 Jan 2026US 2026/0012549 A1Ricoh Company, Ltd.
- Image reading device, image forming apparatus, and image reading method20 Nov 2025US 2025/0358380 A1Ricoh Company, Ltd.
- Reading Device, Reading Method, And Non-Transitory Recording Medium31 Jul 2025US 2025/0247490 A1Ricoh Company, Ltd.
Most cited
By later US patents
- Linear light source240US 5,607,227 ASanyo Electric Co., Ltd. · 1997
- Linear light source202US 4,941,072 ASanyo Electric Co., Ltd. · 1990
- Low cost color-programmable focusing ring light191US 6,273,338 B12001
- Colored light source providing intensification of initial source illumination139US 5,255,171 A1993
- LED array and partitive driving method therefor using overlapping activation periods138US 5,063,462 ACanon Kabushiki Kaisha · 1991