Optical scanning device
US5748352A · kind A · utility
130Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 22, 1996 |
| Grant date | May 5, 1998 |
| Priority date | — |
| Expiry date | May 22, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/124
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Light beam from a light source is changed by a diaphragm so that the center of the light beam is removed. The changed light beam is deflectedly scanned by a deflection device and passed through a condenser lens so as to expose the surface of a photosensitive object. A small spot of light beam of stable intensity is therefore obtained to be irradiated on the photosensitive object. Thus, the optical scanning device has a simple structure and attains high resolution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.