Laminated pane for a head-up display system with p-polarized radiation
US-2024399718-A1 · Dec 5, 2024 · US
used for attenuating light intensity, e.g. comprising rotatable polarising elements
used for attenuating light intensity, e.g. comprising rotatable polarising elements · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G02B27/281 |
| Official title | {used for attenuating light intensity, e.g. comprising rotatable polarising elements} |
| Display label | used for attenuating light intensity, e.g. comprising rotatable polarising elements |
| Total patents | 521 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 25 |
| 2016 | 40 |
| 2017 | 42 |
| 2018 | 42 |
| 2019 | 52 |
| 2020 | 49 |
| 2021 | 53 |
| 2022 | 53 |
| 2023 | 53 |
| 2024 | 53 |
| 2025 | 50 |
| 2026 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
See-through computer display systems
US-9529199-B2 · Dec 27, 2016 · US
Polarization acquisition apparatus, image capturing apparatus and image capturing system
US-2016370688-A1 · Dec 22, 2016 · US
See-through computer display systems
US-9523856-B2 · Dec 20, 2016 · US
Apparatus and method for controlling the intensity of an image generated by a head- up display device
US-2016363765-A1 · Dec 15, 2016 · US
Light control device, light control window, and optical laminated body for light control device
US-2016334633-A1 · Nov 17, 2016 · US
Switchable rearview mirror
US-9493121-B2 · Nov 15, 2016 · US
Variable optical attenuator
US-9488847-B2 · Nov 8, 2016 · US
Head-up display device
US-2016306169-A1 · Oct 20, 2016 · US
Lighting device, lighting system and wearable device having image processor
US-9474131-B2 · Oct 18, 2016 · US
Patterned retarder and optical engine for laser projection apparatus
US-9466941-B2 · Oct 11, 2016 · US
Semiconductor Inspection And Metrology System Using Laser Pulse Multiplier
US-2016285223-A1 · Sep 29, 2016 · US
Optical laminated body and light control window
US-2016273267-A1 · Sep 22, 2016 · US
Polarization-influencing optical arrangement, in particular in a microlithographic projection exposure apparatus
US-9411245-B2 · Aug 9, 2016 · US
Image display mirror for a vehicle
US-2016221509-A1 · Aug 4, 2016 · US
Image display mirror for a vehicle
US-2016221508-A1 · Aug 4, 2016 · US
Vehicle including mirror with image display apparatus
US-2016221506-A1 · Aug 4, 2016 · US
Switchable rearview mirror
US-2016214538-A1 · Jul 28, 2016 · US
See-through computer display systems
US-2016187658-A1 · Jun 30, 2016 · US
Beam processing device, beam attenuation and switching device, and optical wavelength selective switch system
US-2016154247-A1 · Jun 2, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G02B27/281?
- CPC G02B27/281 is the Cooperative Patent Classification code for “used for attenuating light intensity, e.g. comprising rotatable polarising elements.”
- How many patents are filed under CPC G02B27/281 (used for attenuating light intensity, e.g. comprising rotatable polarising elements)?
- Our database includes 521 publications tagged with this CPC code.
- Is patent activity under CPC G02B27/281 growing?
- Publication counts under this code: 53 in 2024 vs 50 in 2025 (latest complete years).