G02B 5/284
Of etalon type comprising a resonant cavity other than a thin solid
Official title: {of etalon type comprising a resonant cavity other than a thin solid film, e.g. gas, air, solid plates (etalons for fibre optic multiplexing G02B6/29358; etalons for spectral measurement G01J3/26)}
G02B5/284 (Of etalon type comprising a resonant cavity other than a thin solid) appears on 312 US grants and 394 published applications in this corpus.
Search patents in G02B- Granted patents
- 312
- Published applications
- 394
- Assignees
- 219
- Inventors
- 712
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 0 |
| 2002 | 4 | 12 |
| 2003 | 5 | 9 |
| 2004 | 9 | 14 |
| 2005 | 12 | 13 |
| 2006 | 10 | 7 |
| 2007 | 7 | 11 |
| 2008 | 9 | 7 |
| 2009 | 6 | 12 |
| 2010 | 4 | 8 |
| 2011 | 9 | 15 |
| 2012 | 8 | 17 |
| 2013 | 7 | 16 |
| 2014 | 9 | 22 |
| 2015 | 8 | 15 |
| 2016 | 17 | 14 |
| 2017 | 7 | 7 |
| 2018 | 20 | 17 |
| 2019 | 9 | 19 |
| 2020 | 21 | 26 |
| 2021 | 17 | 37 |
| 2022 | 16 | 28 |
| 2023 | 20 | 23 |
| 2024 | 22 | 23 |
| 2025 | 21 | 11 |
| 2026 | 11 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pixel scale Fabry Perot filter array for chemical agent vapor detection23 Jun 2026US 12,663,312 B2Massachusetts Institute of Technology
- Light detection system and voltage determination method16 Jun 2026US 12,656,176 B2Hamamatsu Photonics K.K.
- Tunable interference filter2 Jun 2026US 12,645,127 B2Seiko Epson Corporation
- Spectral filter, image sensor including the spectral filter, and electronic device including the spectral filter21 Apr 2026US 12,607,788 B2Samsung Electronics Co., Ltd.
- Filter array and light detection system14 Apr 2026US 12,601,631 B2Panasonic Intellectual Property Management Co., Ltd.
- Device for measuring a physical quantity13 Aug 2026US 2026/0235421 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Filter unit16 Jul 2026US 2026/0202247 A1Hamamatsu Photonics K.K.
- Multiband multi-pass absorption spectroscopy gas sensing16 Jul 2026US 2026/0202324 A1
- Filter unit16 Jul 2026US 2026/0202659 A1Hamamatsu Photonics K.K.
- Solid state optical cavities with thin film lithium niobate layer for resonance tuning16 Jul 2026US 2026/0202695 A1NTT Research, Inc.
Most cited
By later US patents
- Electrocrystallochromic display and element376US 4,982,184 AGeneral Electric Company · 1991
- Structure of an optical interference display cell261US 6,882,458 B2Prime View International Co., Ltd. · 2005
- Graded index Fabry-Perot optical filter device251US 4,377,324 AHoneywell Inc. · 1983
- Fabry-perot with device mirrors including a dielectric coating outside the resonant cavity233US 5,381,232 AAkzo Nobel N. V. · 1995
- Variable wavelength light filter and sensor system158US 5,144,498 AHewlett-Packard Company · 1992