Optical device
US5040873A · kind A · utility
7Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 2, 1991 |
| Grant date | Aug 20, 1991 |
| Priority date | — |
| Expiry date | Jan 2, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/027
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical device is fitted into a casing (2) in a state in which a pair of lenses (6, 8) have the same optic axis (Ra). The casing (2) includes two identically shaped casing halves (1A, 1B), with the pair of lenses (6, 8) being embraced and held by the two casing halves in a state in which a gap (S) is left between the surfaces of the two casing halves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.