Light selective transmission filter
US8014071B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2007 |
| Grant date | Sep 6, 2011 |
| Priority date | — |
| Expiry date | Oct 15, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/283
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides a light selective transmission filter which selectively shields light and has a high transmittance of light at a specific wavelength such as visible rays, and which has a sufficiently reduced thickness and excellent heat resistance. The present invention further provides a lens unit including such a light selective transmission filter. The light selective transmission filter selectively reducing a transmittance of light has a thickness of less than 200 μm and includes a base material containing a functional film with reflow resistance. The lens unit includes such a light selective transmission filter and a lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.