Reflection optical system
US4701035A · kind A · utility
59Cited by
3References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 9, 1985 |
| Grant date | Oct 20, 1987 |
| Priority date | — |
| Expiry date | Aug 9, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/70233
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A reflection optical system includes at least one component mirror system effective to form an image at an enlarged magnification, at least one component mirror system effective to form an image at a reduced magnification, and an optical system for sequentially and repeatedly forming an image of an object at a reduced overall magnification, the optical system containing the enlarging power component mirror system and the reducing power component mirror system. In one form of the invention, the component mirror systems and an additional component system, if any, are arranged tandem to constitute a tandem compound optical system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.