Line scan reader/writer by holographic collection
US4488042A · kind A · utility
11Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 1982 |
| Grant date | Dec 11, 1984 |
| Priority date | — |
| Expiry date | Apr 15, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/0461
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electro-optical scanner which can write and read with common optics by using a phase hologram near the focal plane of the scanned surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.