G03B 21/208
Homogenising, shaping of the illumination light
Official title: {Homogenising, shaping of the illumination light}
G03B21/208 (Homogenising, shaping of the illumination light) appears on 1,697 US grants and 2,206 published applications in this corpus.
Search patents in G03B- Granted patents
- 1,697
- Published applications
- 2,206
- Assignees
- 427
- Inventors
- 2,391
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 5 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 7 | 0 |
| 2001 | 15 | 6 |
| 2002 | 16 | 15 |
| 2003 | 13 | 7 |
| 2004 | 13 | 40 |
| 2005 | 16 | 50 |
| 2006 | 36 | 95 |
| 2007 | 50 | 98 |
| 2008 | 47 | 66 |
| 2009 | 37 | 84 |
| 2010 | 47 | 72 |
| 2011 | 66 | 69 |
| 2012 | 46 | 66 |
| 2013 | 50 | 79 |
| 2014 | 62 | 89 |
| 2015 | 72 | 88 |
| 2016 | 94 | 113 |
| 2017 | 106 | 96 |
| 2018 | 120 | 125 |
| 2019 | 106 | 138 |
| 2020 | 132 | 132 |
| 2021 | 105 | 128 |
| 2022 | 120 | 125 |
| 2023 | 109 | 102 |
| 2024 | 71 | 115 |
| 2025 | 52 | 127 |
| 2026 | 62 | 81 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Illumination system having multiple light source modules and projection device6 Oct 2026US 12,754,468 B2Coretronic Corporation
- Illumination system and projection device6 Oct 2026US 12,754,469 B2Qisda Corporation
- Phosphor unit, light source device, and projector29 Sep 2026US 12,748,302 B2Seiko Epson Corporation
- Projection apparatus29 Sep 2026US 12,748,346 B1Guangzhou Lihe Electronic Technology Co., Ltd.
- Light source device and image display device8 Oct 2026US 2026/0310058 A1Sony Semiconductor Solutions Corporation
- Light source system and projection device8 Oct 2026US 2026/0310059 A1XGIMI Technology CO., LTD
- Multicolor light mixing module1 Oct 2026US 2026/0299385 A1Qisda Corporation
- Optical module and projector1 Oct 2026US 2026/0299389 A1Seiko Epson Corporation
- Projection device and electronic device comprising same1 Oct 2026US 2026/0299391 A1LG Innotek Co., Ltd.
Most cited
By later US patents
- Efficient light engine systems, components and methods of manufacture199US 6,356,700 B12002
- Image projection system138US 6,520,643 B1Digital Optics International Corporation · 2003
- Light source device, optical device, and liquid-crystal display device134US 6,547,400 B1Seiko Epson Corporation · 2003
- Light emitting diode projection system123US 7,832,878 B2Innovations In Optics, Inc. · 2010
- Luminaire121US 6,478,453 B2Koninklijke Philips Electronics N. V. · 2002