Optical element, optical element monitoring system and method, active light emitting module, and terminal
US12362535B2 · kind B2 · utility
0Cited by
16References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2019 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Oct 12, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/02253
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical element, an optical element monitoring system, and a method, monitor in real time whether an optical element such as a diffractive optical element or a diffuser in an active light emitting module is damaged or falls off, and turn off a laser when the optical element is damaged or falls off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.