Two-piece LCD projection device with light filter function and projection method thereof
US-12140854-B1 · Nov 12, 2024 · US
Image projection apparatus
US9004697B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9004697-B2 |
| Application number | US-201414454431-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 7, 2014 |
| Priority date | Nov 4, 2011 |
| Publication date | Apr 14, 2015 |
| Grant date | Apr 14, 2015 |
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Abstract
Official abstract text for this publication.
An image projection apparatus for projecting an image using light includes a light source configured to emit the light; and an operating unit configured to allow a user to operate the image projection apparatus, the operating unit being disposed above the light source when viewed from a placement surface on which a main body of the image projection apparatus is placed. The image projection apparatus also includes a first flow path in which air flows through the light source; and a second flow path different from the first flow path, the second flow path being formed between the light source and the operating unit.
First claim
Opening claim text (preview).
What is claimed is: 1. An image projector, comprising: a user interface to input information from a user; a light source to emit light, the light source being disposed below at least part of the user interface and in vertical alignment with the user interface, when the image projector is in an orientation in which the image projector projects onto a vertical surface; a flow path in which air flow towards an exhaust port of the image projector flows, at least a portion of the f…
Assignees
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- G03B21/16Primary
Physics · mapped topic
Physics · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9004697B2 cover?
- An image projection apparatus for projecting an image using light includes a light source configured to emit the light; and an operating unit configured to allow a user to operate the image projection apparatus, the operating unit being disposed above the light source when viewed from a placement surface on which a main body of the image projection apparatus is placed. The image projection appa…
- Who is the assignee on this patent?
- Ricoh Co Ltd, Ricoh Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification G03B21/16. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Apr 14 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).