Collimated beam channel with four lens optical surfaces
US8917997B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Oct 5, 2012 |
| Grant date | Dec 23, 2014 |
| Priority date | — |
| Expiry date | Jul 19, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/30
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical system and method disclosed include a first lens component and a second lens component within the receive path or the transmit path. The first lens component includes at least two aspheric surfaces that oppose one another and generate a collimated beam channel. The second lens component generates a converging beam and magnifies the converging beam with a magnification factor that is different from a magnification factor in the other path, either the receive path or the transmit path. The receive path and the transmit path include symmetrical lengths and asymmetrical magnification factors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.