Image magnifying/reducing optical device and manufacturing method thereof
US6480345B2 · kind B2 · utility
6Cited by
1References
46Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2001 |
| Grant date | Nov 12, 2002 |
| Priority date | — |
| Expiry date | Jun 29, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/02042
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image magnifying/reducing optical device includes a base member having first and second surfaces which are approximately parallel to one another; and a plurality of high-refractive-index regions formed in the base member. The plurality of high-refractive-index regions continuously extending from the first surface to the second surface of the base member; and a sectional area of each of said plurality of high-refractive-index regions around the second surface being larger than that around the first surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.