G02B 5/18
Diffraction gratings
Official title: Diffraction gratings {(holographic optical elements G02B5/32, G03H; integrally combined with optical fibres G02B6/02057; for coupling light guides G02B6/34; integrally combined with optical integrated light guides G02B6/12; grating systems G02B27/44)}
G02B5/18 (Diffraction gratings) appears on 5,524 US grants and 6,236 published applications in this corpus.
Search patents in G02B- Granted patents
- 5,524
- Published applications
- 6,236
- Assignees
- 1,692
- Inventors
- 9,222
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 10 | 0 |
| 1978 | 13 | 0 |
| 1979 | 4 | 0 |
| 1980 | 7 | 0 |
| 1981 | 4 | 0 |
| 1982 | 13 | 0 |
| 1983 | 10 | 0 |
| 1984 | 12 | 0 |
| 1985 | 9 | 0 |
| 1986 | 8 | 0 |
| 1987 | 16 | 0 |
| 1988 | 16 | 0 |
| 1989 | 30 | 0 |
| 1990 | 14 | 0 |
| 1991 | 45 | 0 |
| 1992 | 46 | 0 |
| 1993 | 39 | 0 |
| 1994 | 41 | 0 |
| 1995 | 52 | 0 |
| 1996 | 42 | 0 |
| 1997 | 57 | 0 |
| 1998 | 73 | 0 |
| 1999 | 65 | 0 |
| 2000 | 80 | 0 |
| 2001 | 77 | 41 |
| 2002 | 75 | 142 |
| 2003 | 102 | 121 |
| 2004 | 110 | 161 |
| 2005 | 95 | 143 |
| 2006 | 123 | 150 |
| 2007 | 96 | 141 |
| 2008 | 75 | 144 |
| 2009 | 81 | 172 |
| 2010 | 113 | 189 |
| 2011 | 110 | 161 |
| 2012 | 146 | 175 |
| 2013 | 127 | 170 |
| 2014 | 144 | 187 |
| 2015 | 137 | 293 |
| 2016 | 193 | 250 |
| 2017 | 209 | 292 |
| 2018 | 226 | 326 |
| 2019 | 344 | 365 |
| 2020 | 369 | 462 |
| 2021 | 338 | 424 |
| 2022 | 343 | 439 |
| 2023 | 323 | 432 |
| 2024 | 324 | 374 |
| 2025 | 338 | 281 |
| 2026 | 196 | 201 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G02B 5/1847Manufacturing methods1,291
- G02B 5/1814Structurally combined with one or more further optical elements1,216
- G02B 5/1876Diffractive fresnel lenses1,041
- G02B 5/1866Transmission gratings characterised by their structure858
- G02B 5/1861Reflection gratings characterised by their structure668
- G02B 5/1809With pitch less than or comparable to the wavelength655
- G02B 5/1842Gratings for image generation535
- G02B 5/1828Having means for producing variable diffraction447
Recent patents
- Optical computing device and method for manufacturing optical computing device6 Oct 2026US 12,754,354 B2Fujikura Ltd.
- Diffractive optical element and method of manufacturing diffractive optical element6 Oct 2026US 12,754,355 B2Canon Kabushiki Kaisha
- Imaging optical system and image pickup apparatus having the same6 Oct 2026US 12,754,399 B2Canon Kabushiki Kaisha
- Polychromatic light out-coupling apparatus, near-eye displays comprising the same, and method of out-coupling polychromatic light6 Oct 2026US 12,754,425 B2Magic Leap, Inc.
- Optical devices including metastructures and methods for fabricating the optical devices29 Sep 2026US 12,748,240 B2NIL Technology ApS
- Method and system for producing light manipulating pattern on a surface8 Oct 2026US 2026/0309903 A1Bar-Ilan University
- Optical device for augmented reality providing expanded eye box1 Oct 2026US 2026/0299290 A1Letinar Co., Ltd
- Optical waveguide device and ar display apparatus1 Oct 2026US 2026/0299292 A1Beijing BOE Technology Development Co., Ltd.
- Input/output coupling grating and display including the same1 Oct 2026US 2026/0299305 A1Magic Leap, Inc.
- System and Method for Enabling High Speed Optical Communication Inside and Between PC Boards, 3D Multi-Chip Modules and Other Electronic Systems1 Oct 2026US 2026/0303224 A1
Most cited
By later US patents
- Method and apparatus for optical imaging with means for controlling the longitudinal range of the sample1,199US 5,321,501 AMassachusetts Institute of Technology · 1994
- Methods and apparatus for forward-directed optical scanning instruments1,184US 6,485,413 B1The General Hospital Corporation · 2002
- Method and apparatus for performing optical measurements using a fiber optic imaging guidewire, catheter or endoscope1,079US 6,134,003 AMassachusetts Institute of Technology · 2000
- Formation of microstamped patterns on surfaces and derivative articles1,049US 5,512,131 APresident and Fellows of Harvard College · 1996
- Method and apparatus for performing optical measurements1,018US 5,459,570 AMassachusetts Institute of Technology · 1995