Imaging optical system
US6801370B2 · kind B2 · utility
16Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2002 |
| Grant date | Oct 5, 2004 |
| Priority date | — |
| Expiry date | Sep 25, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/646
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An imaging optical system includes, in order from the object side, a negative lens, a first deformable mirror, an aperture stop, a positive lens unit, and a second deformable mirror. When a horizontal half angle of view of a ray of light incident on the optical system is represented by &ohgr;, the first and second deformable mirrors satisfying a condition, 50°<2&ohgr;<175°, are used to perform focusing. Whereby, the imaging optical system which allows focusing to be performed, irrespective of its small diameter and size, can be provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.