Line sensor, image reading device, and image forming apparatus
US10412253B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2018 |
| Grant date | Sep 10, 2019 |
| Priority date | — |
| Expiry date | Jul 16, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F99/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a line sensor including color filters periodically disposed in a light-receiving-element row, a “mixture of colors” problem occurs when light that has been transmitted through a color filter differing from a color filter corresponding to a light receiving element is incident upon the light receiving element. To prevent the “mixture of colors” from occurring, in a CMOS sensor 107 including a light-receiving-element row in which a plurality of photodiodes 1204 are disposed side by side in a main scanning direction and a plurality of color filters 1202 that are disposed in correspondence with the plurality of photodiodes 1204, the center of each color filter 1202, other than the center color filter that corresponds to the center photodiode of the light-receiving-element row, is displaced in a direction toward the center of the light-receiving-element row from the center of the photodiode 1204 corresponding to the color filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.