Light scanning apparatus
US9772577B2 · kind B2 · utility
16Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2016 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Jan 19, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light scanning apparatus, including: a light source configured to emit a light beam; and a rotary polygon mirror configured to deflect the light beam emitted from the light source so that the light beam scans a surface of a photosensitive member, wherein the rotary polygon mirror is formed in a four-sided polygon, and wherein a difference between a pair of diametrically opposed interior angles of the rotary polygon mirror is larger than 0.03°, and a difference between another pair of diametrically opposed interior angles of the rotary polygon mirror is 0.03° or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.