Optical receiving device including first lens and second lens and optical receiving system including first lens and second lens
US9904022B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2016 |
| Grant date | Feb 27, 2018 |
| Priority date | — |
| Expiry date | Nov 9, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4214
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical receiving device includes: a lens portion configured to refract incident light with a first wavelength and refract incident light with a second wavelength; a first beam splitter configured to let refracted light with the first wavelength transmit and reflect refracted light with the second wavelength; a second beam splitter configured to reflect transmitted light with the first wavelength; and a light receiver configured to receive reflected light with the first wavelength and reflected light with the second wavelength, wherein the first beam splitter and the second beam splitter are disposed so as to be separated by a difference in optical path length between the light with the first wavelength and the light with the second wavelength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.