Optical device, image reading device, and imaging forming apparatus
US11044378B2 · kind B2 · utility
1Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2020 |
| Grant date | Jun 22, 2021 |
| Priority date | — |
| Expiry date | Mar 4, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/00801
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical device includes: a lens body having multiple lenses arranged such that optical axes thereof are parallel to one another; a light-shielding wall that is disposed for the lens body and blocks, in an optical axis direction, portion of light directed to the multiple lenses; and a sheet member that covers a surface of the light-shielding wall, the surface being perpendicular to the optical axes, and allows light to pass therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.