Image sensor unit and method for manufacturing image sensor unit
US-2015381848-A1 · Dec 31, 2015 · US
Image sensor unit, and image reading apparatus and image forming apparatus using the same
US8964262B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8964262-B2 |
| Application number | US-201314139947-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 24, 2013 |
| Priority date | May 11, 2011 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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Abstract
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An image sensor unit includes: a light guide reflecting light rays entering through a first light entering surface and a second light entering surface provided at both ends thereof, by a reflection surface to make the light rays exit through a light exiting surface and illuminates an original; a first light source provided near the first light entering surface; a second light source provided near the second light entering surface and different in wavelength from the first light source; and a first reflection part and a second reflection part provided on the reflection surface and composed of dot patterns constituted of two kinds of dots different in spectral reflectance.
First claim
Opening claim text (preview).
What is claimed is: 1. An illumination device, comprising: a first light source composed of one or a plurality of light emitting elements; a second light source different in emission wavelength from said first light source and composed of one or a plurality of light emitting elements; and a light guide having a reflection surface, a first light entering surface at one end in a longitudinal direction thereof, and a second light entering surface at the other end, the light guide…
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Physics · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H04N1/02835Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8964262B2 cover?
- An image sensor unit includes: a light guide reflecting light rays entering through a first light entering surface and a second light entering surface provided at both ends thereof, by a reflection surface to make the light rays exit through a light exiting surface and illuminates an original; a first light source provided near the first light entering surface; a second light source provided ne…
- Who is the assignee on this patent?
- Canon Components Kk
- What technology area does this patent fall under?
- Primary CPC classification H04N1/02835. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).