Scanning apparatus using a rotary polygon mirror
US4796963A · kind A · utility
21Cited by
5References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 18, 1987 |
| Grant date | Jan 10, 1989 |
| Priority date | — |
| Expiry date | Aug 18, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A scanning apparatus using a rotary polygon mirror comprises a rotary polygon mirror, a motor for driving the rotary polygon mirror, an optical lens system positioned in front of the rotary polygon mirror for projecting a laser beam onto the rotary polygon mirror and outputting the laser beam reflected thereby toward a photosensitive drum, and a housing for enclosing the rotary polygon mirror in a closed space formed therein and accommodating the optical lens system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.