Light radiating device
US11340577B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 26, 2019 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | Jul 2, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B23/2423
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light radiating device includes an optical element held at a desired position by a holder and configured to exhibit desired optical performance based on incoming light entered at the desired position, a detector configured to detect an amount of positional deviation of the optical element relative to the desired position, and a discrimination unit configured to discriminate whether the light radiating device is in a normal state or an abnormal state based on the detected amount of positional deviation. The normal state is a state where the optical element exhibits the desired optical performance by being disposed at the desired position. The abnormal state is a state where the optical element is disposed at a position deviating from the desired position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.