Image display apparatus
US6922267B2 · kind B2 · utility
111Cited by
2References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2002 |
| Grant date | Jul 26, 2005 |
| Priority date | — |
| Expiry date | Dec 23, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0178
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image display apparatus has an image display device for displaying an image, an eyepiece optical system, including a holographic magnifying optical element, for magnifying and projecting the image, and a holographic filter, disposed either as part of the image display device or in the optical path between the image display device and the eyepiece optical system, for restricting the wavelength range of the image light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.