Optical head
US4993801A · kind A · utility
22Cited by
4References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 27, 1989 |
| Grant date | Feb 19, 1991 |
| Priority date | — |
| Expiry date | Dec 27, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4204
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical head is disclosed which comprises a light source such as a diode laser and an optical element, for example, a collimating lens. The collimating lens and the diode laser are mounted along a common optical axis. A thermoelectric cooling element is provided in the head to control the temperature of the diode laser. In order to precisely locate the collimating lens relative to the diode laser, the housing of the collimating lens is mounted directly onto the barrel of the diode laser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.