G02B 27/42
Diffraction optics , i.e. systems including a diffractive element being designed for
Official title: Diffraction optics {, i.e. systems including a diffractive element being designed for providing a diffractive effect}(G02B27/60 takes precedence)
G02B27/42 (Diffraction optics , i.e. systems including a diffractive element being designed for) appears on 3,459 US grants and 3,627 published applications in this corpus.
Search patents in G02B- Granted patents
- 3,459
- Published applications
- 3,627
- Assignees
- 1,150
- Inventors
- 5,653
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 12 | 0 |
| 1978 | 19 | 0 |
| 1979 | 8 | 0 |
| 1980 | 7 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 5 | 0 |
| 1984 | 8 | 0 |
| 1985 | 9 | 0 |
| 1986 | 7 | 0 |
| 1987 | 10 | 0 |
| 1988 | 11 | 0 |
| 1989 | 15 | 0 |
| 1990 | 20 | 0 |
| 1991 | 22 | 0 |
| 1992 | 20 | 0 |
| 1993 | 18 | 0 |
| 1994 | 27 | 0 |
| 1995 | 32 | 0 |
| 1996 | 25 | 0 |
| 1997 | 33 | 0 |
| 1998 | 49 | 0 |
| 1999 | 43 | 0 |
| 2000 | 52 | 0 |
| 2001 | 34 | 17 |
| 2002 | 53 | 68 |
| 2003 | 47 | 55 |
| 2004 | 55 | 64 |
| 2005 | 51 | 63 |
| 2006 | 52 | 88 |
| 2007 | 42 | 84 |
| 2008 | 52 | 78 |
| 2009 | 67 | 86 |
| 2010 | 74 | 91 |
| 2011 | 64 | 86 |
| 2012 | 73 | 84 |
| 2013 | 73 | 73 |
| 2014 | 69 | 81 |
| 2015 | 69 | 218 |
| 2016 | 104 | 170 |
| 2017 | 136 | 205 |
| 2018 | 167 | 196 |
| 2019 | 220 | 268 |
| 2020 | 255 | 333 |
| 2021 | 235 | 304 |
| 2022 | 252 | 270 |
| 2023 | 235 | 236 |
| 2024 | 217 | 188 |
| 2025 | 194 | 145 |
| 2026 | 99 | 76 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G02B 27/4205Having a diffractive optical element [doe] contributing to image formation1,415
- G02B 27/4233Having a diffractive element [doe] contributing to a non-imaging application933
- G02B 27/4272Having plural diffractive elements positioned sequentially along the optical path761
- G02B 27/46Systems using spatial filters589
- G02B 27/4261Having a diffractive element with major polarization dependent properties166
- G02B 27/44Grating systems125
- G02B 27/4283Having a diffractive element with major temperature dependent properties76
- G02B 27/4294In multispectral systems71
Recent patents
- Imaging optical system and image pickup apparatus having the same6 Oct 2026US 12,754,399 B2Canon Kabushiki Kaisha
- Field of view expansion by image light redirection6 Oct 2026US 12,754,430 B2Meta Platforms Technologies, LLC
- Optical device and method of manufacture thereof22 Sep 2026US 12,741,478 B2De La Rue International Limited
- Image projection22 Sep 2026US 12,742,977 B2Dualitas Ltd
- Optical 4f system performing extended convolution operation and operating method thereof22 Sep 2026US 12,743,880 B2Electronics and Telecommunications Research Institute
- Display structure8 Oct 2026US 2026/0309989 A1Dispelix Oy
- Compact display with extended pixel resolution1 Oct 2026US 2026/0299182 A1Texas Instruments Incorporated
- Waveguides having integrated spacers, waveguides having edge absorbers, and methods for making the same1 Oct 2026US 2026/0299187 A1Magic Leap, Inc.
- Optical waveguide device and ar display apparatus1 Oct 2026US 2026/0299292 A1Beijing BOE Technology Development Co., Ltd.
- Generating and projecting a pseudo-random optical pattern of dots24 Sep 2026US 2026/0287335 A1NIL Technology ApS
Most cited
By later US patents
- Methods and apparatus for forward-directed optical scanning instruments1,184US 6,485,413 B1The General Hospital Corporation · 2002
- Plastic lens system for vehicle imaging system729US 6,757,109 B2Donnelly Corporation · 2004
- Virtual and augmented reality systems and methods701US 9,791,700 B2Magic Leap, Inc. · 2017
- Grating based phase control optical delay line535US 6,111,645 AMassachusetts Institute of Technology · 2000
- Compact head-up display521US 4,711,512 AEnvironmental Research Institute of Michigan · 1987