Optical module
US11054309B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2018 |
| Grant date | Jul 6, 2021 |
| Priority date | — |
| Expiry date | Jul 6, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2003/104
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical module 1A includes a mirror unit 2 including a movable mirror 22 and a fixed mirror 16, a beam splitter unit 3, a light incident unit 4, a first light detector 6, a second light source 7, a second light detector 8, a holding unit 130, a first mirror 51, a second mirror 52, and a third mirror 53. The holding unit 130 holds the first light detector 6, the second light detector 8, and the second light source 7 so as to face that same side, and to be aligned in this order. A length of an optical path between the unit 3 and the detector 6 is shorter than a length of an optical path between the unit 3 and the detector 8, and a length of an optical path between the unit 3 and the source 7.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.