Optical device having positionally changeable optical surfaces and a method of varying an image forming position
US4781445A · kind A · utility
16Cited by
7References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 1984 |
| Grant date | Nov 1, 1988 |
| Priority date | — |
| Expiry date | May 31, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/0875
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical device having an elastic body sandwiched between typically two optical surfaces, which are capable of changing relative positions through deformation of the elastic body. The two optical surfaces may be given by, for example, parallel flat plate glasses or lenses. By changing the distnace or relative positions between the two optical surfaces, focusing or correction of chromatic aberration of photographic lenses, etc. can be effected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.