Image sensor apparatus with small convex portions
US5926286A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 5, 1997 |
| Grant date | Jul 20, 1999 |
| Priority date | — |
| Expiry date | May 5, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/02885
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In an image sensor apparatus, a light emitting section is composed of a plurality of light emitting elements provided in a longitudinal direction of said image sensor apparatus. An optical section has an uneven structure, and changes the direction of light such that the light emerges from the optical section in a substantially parallel manner and converges to a linear region along the longitudinal direction. Here, the uneven structure includes a plurality of convex or concave portions, and a length of each of the plurality of convex or concave portions of the uneven structure in the longitudinal direction is smaller than a separation between adjacent two of the plurality of light emitting elements. An image sensor section transmits the converged light to a manuscript and for sensing a light reflected from the manuscript.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.