Optical scanner and image forming apparatus
US-2018239130-A1 · Aug 23, 2018 · US
Optical scanning device and image forming apparatus including the same
US8988751B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8988751-B2 |
| Application number | US-95853610-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 2, 2010 |
| Priority date | Dec 4, 2009 |
| Publication date | Mar 24, 2015 |
| Grant date | Mar 24, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
An optical scanning device is disclosed. The optical scanning device comprises an overfilled optical system in which an incoming light beam, formed wider than a width in a rotation direction of a rotating multifaceted mirror's reflective surface, is caused to be incident on the reflective surface and a scanning object's scanning surface is scanned by an outgoing beam reflected by the reflective surface. The incoming beam is incident on the rotating multifaceted mirror's reflective surface, having an angle with respect to a virtual vertical surface that is vertical to the scanning surface and the outgoing beam's scanning direction. A light amount distribution for positions on the scanning surface in the scanning direction is corrected based on a slope of a straight line that expresses a ratio of light amount changes for positions on the scanning surface in the scanning direction when scanning the scanning surface using the outgoing beam.
First claim
Opening claim text (preview).
What is claimed is: 1. An optical scanning device comprising an overfilled optical system in which an incoming beam of a light beam incident on a reflective surface of a rotating multifaceted mirror from a light source is incident such that the width of the incident light beam is wider on the reflective surface than a width in a rotation direction of the reflective surface of the rotating multifaceted mirror, and is reflected on the reflective surface; and a scanning surface of a s…
Assignees
Inventors
Classifications
Physics · mapped topic
Electricity · mapped topic
Physics · mapped topic
Physics · mapped topic
Electricity · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US8988751B2 cover?
- An optical scanning device is disclosed. The optical scanning device comprises an overfilled optical system in which an incoming light beam, formed wider than a width in a rotation direction of a rotating multifaceted mirror's reflective surface, is caused to be incident on the reflective surface and a scanning object's scanning surface is scanned by an outgoing beam reflected by the reflective…
- Who is the assignee on this patent?
- Motoyama Takaharu, Shirai Nobuhiro, Sharp Kk
- What technology area does this patent fall under?
- Primary CPC classification G03G15/326. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 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).