Light beam scanning apparatus and image forming apparatus
US7045771B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 16, 2004 |
| Grant date | May 16, 2006 |
| Priority date | — |
| Expiry date | Jun 1, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/24
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
According to an aspect of the present invention, a light beam scanning apparatus comprises light emitting unit for emitting a light beam, scanning control unit for controlling scanning of the light beam, light quantity detecting unit for detecting the quantity of light in the light beam, light quantity control signal output unit for outputting a light quantity control signal that performs control such that the quantity of light in the light beam is kept fixed on the basis of a result of detection of the quantity of light in the light beam, and light emission control unit for controlling a light emission timing for the light beam on the basis of image data and controlling the quantity of light in the light beam on the basis of the light quantity control signal while the light emission timing is being controlled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.