Light scanning device for scanning with a lasler beam and an image forming apparatus for forming an image with a laser beam
US4800401A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1986 |
| Grant date | Jan 24, 1989 |
| Priority date | — |
| Expiry date | Apr 11, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/1135
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A light scanning device has a light deflecting member such as a polygon mirror rotated to thereby scan with a light, a bearing member for rotatably supporting the light deflecting member, a supporting member for holding the bearing member, and a base member formed integrally as a one-piece construction with the supporting member. The light deflecting member is accurately held relative to the base member by the highly accurately provided supporting member. The light scanning device is characterized by the integral molding for improving the accuracy of an optical system member which has heretofore been made discretely and thereafter coupled to the base member, and is preferably characterized by the integral molding of a supporting portion (a positioning and containing portion) for supporting a plurality of optical system members relative to the base member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.