Light guide with narrow angle light output and methods
US-9223080-B2 · Dec 29, 2015 · US
Lighting device and liquid crystal display device provided with same
US9013652B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9013652-B2 |
| Application number | US-201113991374-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 29, 2011 |
| Priority date | Dec 6, 2010 |
| Publication date | Apr 21, 2015 |
| Grant date | Apr 21, 2015 |
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Abstract
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Provided is an illumination device capable of housing and fixing a plurality of light guide plates inside a chassis. The illumination device has a rectangular box-shaped chassis, a plurality of horizontally long rectangular light guide plates that are housed inside the chassis while arranged side by side on the bottom surface, light sources that emit light to the shorter side end faces of the respective light guide plates such that the light enters the respective light guide plates, and a plurality of support members that clamp the respective light guide plates on the bottom surface of the chassis. Each support member has a holding part that makes contact with upper surfaces of respective light guide plates at the long-side edges, a shank extending from the holding part, and a pair of locking pieces elastically deformable toward and away from each other, the pair of locking pieces being provided at an end of the shank and being inserted and engaged in an attachment hole in the bottom plate.
First claim
Opening claim text (preview).
The invention claimed is: 1. An illumination device, comprising: a chassis that is in a rectangular box shape; a plurality of light guide plates having a rectangular shape that is longer in a horizontal direction, the plurality of light guide plates being stored in the chassis and being arranged side by side on an inner bottom surface of the chassis; light sources that illuminate light to shorter side end faces of the respective light guide plates such that said light enters t…
Assignees
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Classifications
- G02B6/0078Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
- G02B6/0091Primary
Physics · mapped topic
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Frequently asked questions
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- What does patent US9013652B2 cover?
- Provided is an illumination device capable of housing and fixing a plurality of light guide plates inside a chassis. The illumination device has a rectangular box-shaped chassis, a plurality of horizontally long rectangular light guide plates that are housed inside the chassis while arranged side by side on the bottom surface, light sources that emit light to the shorter side end faces of the r…
- Who is the assignee on this patent?
- Tomomasa Masatoshi, Sharp Kk
- What technology area does this patent fall under?
- Primary CPC classification G02B6/0078. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Apr 21 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).