G02B 27/28
Optical systems or apparatus not provided for by any of the groups
Official title: for polarising (used in stereoscopes G02B30/25)
G02B27/28 (Optical systems or apparatus not provided for by any of the groups) appears on 5,468 US grants and 6,125 published applications in this corpus.
Search patents in G02B- Granted patents
- 5,468
- Published applications
- 6,125
- Assignees
- 1,845
- Inventors
- 9,360
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 5 | 0 |
| 1978 | 6 | 0 |
| 1979 | 4 | 0 |
| 1980 | 5 | 0 |
| 1981 | 6 | 0 |
| 1982 | 5 | 0 |
| 1983 | 5 | 0 |
| 1984 | 8 | 0 |
| 1985 | 10 | 0 |
| 1986 | 8 | 0 |
| 1987 | 15 | 0 |
| 1988 | 16 | 0 |
| 1989 | 16 | 0 |
| 1990 | 13 | 0 |
| 1991 | 22 | 0 |
| 1992 | 21 | 0 |
| 1993 | 36 | 0 |
| 1994 | 32 | 0 |
| 1995 | 35 | 0 |
| 1996 | 28 | 0 |
| 1997 | 39 | 0 |
| 1998 | 68 | 0 |
| 1999 | 65 | 0 |
| 2000 | 76 | 0 |
| 2001 | 91 | 34 |
| 2002 | 104 | 139 |
| 2003 | 101 | 137 |
| 2004 | 121 | 149 |
| 2005 | 104 | 146 |
| 2006 | 131 | 193 |
| 2007 | 100 | 141 |
| 2008 | 101 | 150 |
| 2009 | 84 | 165 |
| 2010 | 98 | 132 |
| 2011 | 104 | 129 |
| 2012 | 95 | 122 |
| 2013 | 100 | 156 |
| 2014 | 118 | 153 |
| 2015 | 154 | 226 |
| 2016 | 179 | 289 |
| 2017 | 243 | 318 |
| 2018 | 280 | 340 |
| 2019 | 334 | 393 |
| 2020 | 355 | 406 |
| 2021 | 319 | 463 |
| 2022 | 366 | 409 |
| 2023 | 358 | 419 |
| 2024 | 361 | 360 |
| 2025 | 323 | 330 |
| 2026 | 189 | 226 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Light source unit and image display device6 Oct 2026US 12,754,420 B2Nichia Corporation
- Near-eye display device6 Oct 2026US 12,754,427 B2Guangzhou Luxvisions Innovation Technology Limited
- Field of view expansion by image light redirection6 Oct 2026US 12,754,430 B2Meta Platforms Technologies, LLC
- Selective visualization of an image using second pass-through of polarized light6 Oct 2026US 12,754,439 B2Disney Enterprises, Inc.
- Illumination sources for multicore fiber endoscopes29 Sep 2026US 12,745,900 B2Zsquare Ltd.
- Ophthalmic lens8 Oct 2026US 2026/0309962 A1Young Optics Inc.
- Camera module8 Oct 2026US 2026/0309963 A1Samsung Electro-Mechanics Co., Ltd.
- Techniques for Combining Optical Beams into Shared Spatial Mode1 Oct 2026US 2026/0299102 A1Aeva, Inc.
- Laser radar1 Oct 2026US 2026/0299133 A1Nikon Corporation
- Polarized light conversion device and manufacturing method therefor1 Oct 2026US 2026/0299181 A1FOCtek Photonics, Inc.
Most cited
By later US patents
- Optical film968US 5,882,774 AMinnesota Mining and Manufacturing Company · 1999
- Apparatus for optical see-through head mounted display with mutual occlusion and opaqueness control capability688US 9,547,174 B2Magic Leap, Inc. · 2017
- Ergonomic head mounted display device and optical system641US 9,348,143 B2Magic Leap, Inc. · 2016
- Wide-field of view (FOV) imaging devices with active foveation capability563US 9,851,563 B2Magic Leap, Inc. · 2017
- Light guide optical device506US 7,457,040 B2Lumus Ltd. · 2008