Optical apparatus and optical system
US6122105A · kind A · utility
5Cited by
5References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1997 |
| Grant date | Sep 19, 2000 |
| Priority date | — |
| Expiry date | Jul 29, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/03179
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In an image reading device in which an original is illuminated by a light source, and a reflected beam from the original is imaged on a sensor through a rod lens array, a light-shielding member is arranged between the beam exit surface of the light source and the incident surface of the rod lens array to prevent the beam from the light source from being directly incident on the rod lens array to cause a flare. An image reading device and information processing apparatus in which the image quality is rarely degraded by the flare beam are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.