Projection device
US11274949B2 · kind B2 · utility
0Cited by
1References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2020 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | Jul 14, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/126
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Light emitted from laser light source is divided by prism into two light flux and light flux corresponding to light emitted from slope and slope. Light flux and light flux are diffused by diffusion plate and diffusion plate to become light flux and light flux. By overlapping light flux and light flux, a radiation distribution with a wide angle and high light intensity can be obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.