Biocular display system using binary optics
US5764414A · kind A · utility
98Cited by
3References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1993 |
| Grant date | Jun 9, 1998 |
| Priority date | — |
| Expiry date | Aug 23, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/4205
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A biocular display system (19) for generating a virtual image (30) of a visible display (20). A diffractive binary optical element (22) is used to create the virtual image (30). The binary optical element (22) contains magnifying power to increase the size of the virtual image (30). Also, the binary optical element (22) contains prismatic power to displace the virtual image (30) away from the display (20). Multiple displays (40), (42) may be viewed by employing a binary optical element (34) having multiple diffractive orders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.