G02B 27/288
Filters employing polarising elements
Official title: {Filters employing polarising elements, e.g. Lyot or Solc filters (G02B5/3016 takes precedence)}
G02B27/288 (Filters employing polarising elements) appears on 361 US grants and 420 published applications in this corpus.
Search patents in G02B- Granted patents
- 361
- Published applications
- 420
- Assignees
- 287
- Inventors
- 887
- Latest grant
- 22 Sep 2026
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|---|---|---|
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| 1981 | 3 | 0 |
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| 2023 | 23 | 42 |
| 2024 | 26 | 28 |
| 2025 | 26 | 29 |
| 2026 | 12 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Retarder stack for preconditioning light for a modulator having modulation and isotropic states of polarization269US 5,929,946 AColorLink, Inc. · 1999
- Polarizing wavelength separator191US 5,221,982 A1993
- Method for producing high efficiency polarizing filters151US 5,096,520 A1992
- Devices based on an array of light-filtering channels with surface plasmon interference filters104US 6,992,826 B2California Institute of Technology · 2006
- Color polarizers for polarizing an additive color spectrum along a first axis and it's compliment along a second axis87US 5,751,384 ABoard of Regents of the University of Colorado · 1998