Image reading apparatus capable of controlling light emission amount
US5696608A · kind A · utility
4Cited by
9References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 19, 1993 |
| Grant date | Dec 9, 1997 |
| Priority date | — |
| Expiry date | Apr 19, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/40056
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image reading apparatus has a projecting light source and a photo-sensitive device for receiving the projected light. In addition, a device is provided for measuring characteristics of the image reading apparatus while changing a light emission amount from the light source on the basis of an instruction by the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.