Collimated relief display device
US4810056A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 1988 |
| Grant date | Mar 7, 1989 |
| Priority date | — |
| Expiry date | Mar 1, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0118
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The device provided makes it possible to see a collimated light image in relief. It is formed from a conventional collimator assembly comprising a convergent lens at the focal point of which the light representation to be collimated is placed. This light representation may be formed on the screen of a cathode ray tube. The screen is equipped with a micro-lens lattice. Each micro-lens is coupled to at least two adjacent pixels corresponding to the display of the same image point. A divergent optic is placed between the micro-lens lattice and the collimation optic so as to form with a convergent optic an assembly of the teleobjective type and to provide spatial separation of the collimated images and allow separate observation of a first image with the right eye and of second image with the left eye in the eye box.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.