Optical scanning device, method for manufacturing the optical scanning device, and image forming apparatus
US-9223132-B2 · Dec 29, 2015 · US
Light source unit, optical scanning device, and image forming apparatus
US8976216B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8976216-B2 |
| Application number | US-201113090654-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 20, 2011 |
| Priority date | Apr 28, 2010 |
| Publication date | Mar 10, 2015 |
| Grant date | Mar 10, 2015 |
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Abstract
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A light source unit includes a surface-emitting laser array including light emitting units; and an apertured member provided on a light path of light beams emitted from the surface-emitting laser array, the apertured member including an aperture. In at least one direction, an intensity distribution of interference patterns caused by the light beams passing through the aperture includes an equal number of crests and troughs.
First claim
Opening claim text (preview).
What is claimed is: 1. A light source unit comprising: a surface-emitting laser array including light emitting units; and an apertured member provided on a light path of light beams emitted from the surface-emitting laser array, the apertured member including an aperture, wherein an orthogonal projection of the aperture on a plane including a light emitting area of the surface-emitting laser array has a length in one direction that is substantially an integral multiple of λL/d…
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Operations & Transport · mapped topic
Physics · mapped topic
Physics · mapped topic
- B41J2/473Primary
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US8976216B2 cover?
- A light source unit includes a surface-emitting laser array including light emitting units; and an apertured member provided on a light path of light beams emitted from the surface-emitting laser array, the apertured member including an aperture. In at least one direction, an intensity distribution of interference patterns caused by the light beams passing through the aperture includes an equal…
- Who is the assignee on this patent?
- Ohba Yoshihiro, Sugawara Satoru, Ishii Toshihiro, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification B41J2/473. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 10 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).