H04N 9/315
Modulator illumination systems
Official title: {Modulator illumination systems (general applications of lighting devices F21V; general optical systems G02B; lamp houses for projectors not peculiar to the presence of an electronic spatial light modulator G03B21/20)}
H04N9/315 (Modulator illumination systems) appears on 4,801 US grants and 5,460 published applications in this corpus.
Search patents in H04N- Granted patents
- 4,801
- Published applications
- 5,460
- Assignees
- 886
- Inventors
- 5,926
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 10 | 0 |
| 1991 | 13 | 0 |
| 1992 | 21 | 0 |
| 1993 | 21 | 0 |
| 1994 | 21 | 0 |
| 1995 | 27 | 0 |
| 1996 | 26 | 0 |
| 1997 | 37 | 0 |
| 1998 | 38 | 0 |
| 1999 | 35 | 0 |
| 2000 | 42 | 0 |
| 2001 | 60 | 24 |
| 2002 | 66 | 95 |
| 2003 | 77 | 107 |
| 2004 | 87 | 164 |
| 2005 | 96 | 244 |
| 2006 | 161 | 278 |
| 2007 | 159 | 253 |
| 2008 | 163 | 244 |
| 2009 | 138 | 241 |
| 2010 | 157 | 236 |
| 2011 | 180 | 205 |
| 2012 | 180 | 233 |
| 2013 | 170 | 239 |
| 2014 | 194 | 208 |
| 2015 | 212 | 192 |
| 2016 | 214 | 272 |
| 2017 | 247 | 324 |
| 2018 | 312 | 318 |
| 2019 | 321 | 317 |
| 2020 | 294 | 302 |
| 2021 | 256 | 260 |
| 2022 | 213 | 196 |
| 2023 | 173 | 168 |
| 2024 | 159 | 132 |
| 2025 | 112 | 123 |
| 2026 | 87 | 85 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Illumination system and projection device6 Oct 2026US 12,754,469 B2Qisda Corporation
- Display system, non-transitory computer-readable storage medium storing program, and control device6 Oct 2026US 12,756,801 B2Seiko Epson Corporation
- Projector6 Oct 2026US 12,756,802 B2Seiko Epson Corporation
- Projection system and method for etendue utilization15 Sep 2026US 12,736,859 B2Dolby Laboratories Licensing Corporation
- Illumination device8 Sep 2026US 12,732,598 B2Sony Group Corporation
- Pixel shifting methods in projection systems8 Oct 2026US 2026/0313079 A1Dolby Laboratories Licensing Corporation
- Ultrahigh bandgap algan channel hemts with low contact resistance1 Oct 2026US 2026/0303761 A1
- Portable device for displaying graphical information on a remote object1 Oct 2026US 2026/0303764 A1EXTEND3D GmbH
- Electronic instrument24 Sep 2026US 2026/0292110 A1Seiko Epson Corporation
- Projector24 Sep 2026US 2026/0292111 A1Seiko Epson Corporation
Most cited
By later US patents
- Variable intensity high contrast passive display504US 5,717,422 A1998
- Laser projection display system492US 6,594,090 B2Eastman Kodak Company · 2003
- Uniform illumination system488US 7,072,096 B2Digital Optics International Corporation · 2006
- High-density illumination system467US 6,871,982 B2Digital Optics International Corporation · 2005
- Digitized color video display system344US 5,192,946 ATexas Instruments Incorporated · 1993