Optical system for semiconductor laser and optical information processing equipment utilizing the same
US4779943A · kind A · utility
21Cited by
4References
5Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Feb 8, 1984 |
| Grant date | Oct 25, 1988 |
| Priority date | — |
| Expiry date | Feb 8, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/0944
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical system and a optical information processing equipment utilizing the same are disclosed. The optical system comprises a laser diode and a hologram lens has an interference fringe prepared by the interference of a beam having substantially the same intensity distribution and/or phase characteristic as that of a laser beam emitted from the laser diode with a beam having a desired characteristic. The laser beam from the laser diode is irradiated on the hologram lens so that its characteristic is converted into the desired characteristic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.