Augmented reality device based on waveguide with holographic diffractive grating structure and apparatus for recording the holographic diffractive grating structure
US-11835922-B2 · Dec 5, 2023 · US
in optical contact
in optical contact · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G03H2001/261 |
| Official title | {in optical contact} |
| Display label | in optical contact |
| Total patents | 67 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 6 |
| 2019 | 10 |
| 2020 | 14 |
| 2021 | 10 |
| 2022 | 7 |
| 2023 | 4 |
| 2024 | 3 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Diffractive optical network for reconstruction of holograms
US-2023024787-A1 · Jan 26, 2023 · US
Floating image display device and electronic device including the same
US-2022397762-A1 · Dec 15, 2022 · US
Lightguide with a freeform incoupler and a holographic outcoupler
US-2022163804-A1 · May 26, 2022 · US
Method and apparatus for printing a periodic pattern with a varying duty cycle
US-2022155691-A1 · May 19, 2022 · US
Holographic display apparatus and holographic display method for providing enhanced image quality
US-11327439-B2 · May 10, 2022 · US
Image display device
US-11275251-B2 · Mar 15, 2022 · US
Diffractive Projection Apparatus
US-2022075196-A1 · Mar 10, 2022 · US
Augmented reality device based on waveguide with holographic diffractive grating structure and apparatus for recording the holographic diffractive grating structure
US-2022066389-A1 · Mar 3, 2022 · US
Optical Systems with Resolution-Enhancing Holographic Elements
US-2021405380-A1 · Dec 30, 2021 · US
Holographic optical element and method of forming thereof
US-2021364686-A1 · Nov 25, 2021 · US
Methods, systems, and computer readable media for improved digital holography and display incorporating same
US-11137719-B2 · Oct 5, 2021 · US
Head-mounted display apparatus
US-11067810-B2 · Jul 20, 2021 · US
Light guide plate, method for manufacturing light guide plate, and image display device using same
US-2021165224-A1 · Jun 3, 2021 · US
Rotational geometric phase hologram with application for fabricating geometric phase optical element
US-10983262-B2 · Apr 20, 2021 · US
Enhancing daytime detection of objects with the use of a system incorporating dual diffractive elements with corresponding diffraction efficiencies and bandwidths
US-10976478-B2 · Apr 13, 2021 · US
Holographic display apparatus and holographic display method for providing enhanced image quality
US-10969744-B2 · Apr 6, 2021 · US
Image display device
US-2021063753-A1 · Mar 4, 2021 · US
Image display apparatus and image display element
US-10930186-B2 · Feb 23, 2021 · US
Imageguide for head mounted display
US-10877275-B2 · Dec 29, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G03H2001/261?
- CPC G03H2001/261 is the Cooperative Patent Classification code for “in optical contact.”
- How many patents are filed under CPC G03H2001/261 (in optical contact)?
- Our database includes 67 publications tagged with this CPC code.
- Is patent activity under CPC G03H2001/261 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).