H04N 1/02815
Means for illuminating the original, not specific to a particular type of
Official title: {Means for illuminating the original, not specific to a particular type of pick-up head}
H04N1/02815 (Means for illuminating the original, not specific to a particular type of) appears on 1,556 US grants and 1,381 published applications in this corpus.
Search patents in H04N- Granted patents
- 1,556
- Published applications
- 1,381
- Assignees
- 336
- Inventors
- 2,243
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 5 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 6 | 0 |
| 1985 | 7 | 0 |
| 1986 | 1 | 0 |
| 1987 | 8 | 0 |
| 1988 | 10 | 0 |
| 1989 | 15 | 0 |
| 1990 | 17 | 0 |
| 1991 | 14 | 0 |
| 1992 | 21 | 0 |
| 1993 | 21 | 0 |
| 1994 | 17 | 0 |
| 1995 | 21 | 0 |
| 1996 | 20 | 0 |
| 1997 | 29 | 0 |
| 1998 | 28 | 0 |
| 1999 | 30 | 0 |
| 2000 | 30 | 0 |
| 2001 | 30 | 15 |
| 2002 | 31 | 35 |
| 2003 | 37 | 37 |
| 2004 | 34 | 59 |
| 2005 | 24 | 41 |
| 2006 | 33 | 38 |
| 2007 | 16 | 42 |
| 2008 | 27 | 52 |
| 2009 | 35 | 92 |
| 2010 | 47 | 55 |
| 2011 | 43 | 78 |
| 2012 | 61 | 47 |
| 2013 | 80 | 72 |
| 2014 | 94 | 80 |
| 2015 | 102 | 83 |
| 2016 | 80 | 59 |
| 2017 | 65 | 109 |
| 2018 | 88 | 99 |
| 2019 | 91 | 56 |
| 2020 | 59 | 41 |
| 2021 | 36 | 38 |
| 2022 | 35 | 38 |
| 2023 | 35 | 42 |
| 2024 | 32 | 30 |
| 2025 | 13 | 29 |
| 2026 | 14 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04N 1/02845Using an elongated light source683
- H04N 1/0282Using a single or a few point light sources612
- H04N 1/02885Means for compensating spatially uneven illumination330
- H04N 1/02895Additional elements in the illumination means or cooperating with the illumination means182
- H04N 1/0288Using a two-dimensional light source58
Recent patents
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Most cited
By later US patents
- Linear light source240US 5,607,227 ASanyo Electric Co., Ltd. · 1997
- Digitizing scanner232US 6,606,171 B1Howtek, Inc. · 2003
- Linear light source202US 4,941,072 ASanyo Electric Co., Ltd. · 1990
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