Vision enhancement illuminators
US9680276B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 21, 2014 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Jun 15, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An illuminator includes a short wave infrared (SWIR) laser, a lens collimator, a first beam shaping diffuser, a second beam shaping diffuser, and a bandpass filter. The lens collimator is optically coupled to the laser for diverging a beam emitted by the laser. The first beam shaping diffuser is optically coupled to the lens collimator to diffuse a diverged beam produced by the lens collimator. The second beam shaping diffuser is optically coupled to the first beam shaping diffuser to further diffuse a diffused beam produced by the first beam shaping diffuser. The bandpass filter is optically connected to the second beam shaping diffuser configured to filter the emissions of a further diffused beam produced by the second beam shaping diffuser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.