Thin profile laser pointer assembly
US5882106A · kind A · utility
Inventor
Key dates
| Filing date | Dec 10, 1997 |
| Grant date | Mar 16, 1999 |
| Priority date | — |
| Expiry date | Dec 10, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A thin profile laser pointer assembly includes a thin profile laser head, a constant voltage laser diode driver circuit, and a coin cell power source all packaged within a thin-profile rectangular housing having a thickness between about 2.0 mm and about 6.0 mm. The laser head includes a thin, rectangular heat sink and a laser diode mounted on a recessed shelf on a front edge of the heat sink. The laser head is slidably received in a mounting channel in a front portion of the housing. The arrangement of the laser head and mounting channel rigidly fixes the laser diode in the X and Z axes while permitting sliding linear movement of the laser diode along a "Y" axis, which defines the optical axis of the laser diode. A lens is mounted in the mounting channel along the optical axis, and a projecting aperture is formed in the front edge of the housing in front of the lens for allowing the laser beam to exit through the front of the housing. The laser beam is focused by sliding the laser head within the channel. The laser diode driver circuit and a contact switch are mounted on a circuit board received and secured over the housing. Contact pads on the circuit board engage corresponding c…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.