Visual field converting optical system
US4895433A · kind A · utility
11Cited by
9References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1989 |
| Grant date | Jan 23, 1990 |
| Priority date | — |
| Expiry date | Jan 31, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B23/2423
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A visual field converting optical system comprising an inhomogeneous medium lens or a prism in which refractive index is linearly changed in a direction different from that of travel of light, in order to be able to perform a visual field conversion with a simple and compact configuration, without generating aberration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.