Optical lens assembly and optical devices thereof
US8969784B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2012 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | May 17, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B19/0028
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In one embodiment, an optical lens assembly comprising a primary lens and an optical structure located at an outer portion of the lens is disclosed. The primary lens is configured to direct a substantial amount of light to a predetermined first distance whereas the optical structure is configured to direct light towards a second distance that is relatively close to the optical lens assembly compared to the first distance. Other embodiments disclose light-emitting devices and proximity sensors having such an optical lens assembly. Alternative embodiments of the optical lens assembly are disclosed, including but not limited to an optical structure defining an optical surface located at a lens flange and optical structure defining a light guide located at a base portion of the optical lens assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.