Fixture
US-11936488-B2 · Mar 19, 2024 · US
Illumination optical system and image projection device
US9104093B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9104093-B2 |
| Application number | US-201314037578-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 26, 2013 |
| Priority date | Oct 25, 2012 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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- Title
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Abstract
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An illumination optical system includes a lens unit that is arranged on a path of an emitted light to an image forming element for forming an image; a holding unit that holds the lens unit; and an elastic body that is attached to the holding unit, and has integrally-formed first and second parts, the first part being biased in a direction of an optical axis of the light to press the lens unit, and the second part being biased in a direction perpendicular to the direction of the optical axis to press the lens unit.
First claim
Opening claim text (preview).
What is claimed is: 1. An illumination optical system comprising: a lens unit that is arranged on a path of an emitted light to an image forming element for forming an image; a holding unit that holds the lens unit; and an elastic body that is attached to the holding unit, and has integrally-formed first and second parts, the first part being biased in a direction of an optical axis of the light to press the lens unit, and the second part being biased in a direction perpendicu…
Assignees
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Classifications
Physics · mapped topic
Electricity · mapped topic
- G03B21/145Primary
Physics · mapped topic
- G03B21/142Primary
Physics · mapped topic
Physics · mapped topic
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- What does patent US9104093B2 cover?
- An illumination optical system includes a lens unit that is arranged on a path of an emitted light to an image forming element for forming an image; a holding unit that holds the lens unit; and an elastic body that is attached to the holding unit, and has integrally-formed first and second parts, the first part being biased in a direction of an optical axis of the light to press the lens unit, …
- Who is the assignee on this patent?
- Fujioka Tetsuya, Yamada Masamichi, Mikutsu Yasunari, and 5 more
- What technology area does this patent fall under?
- Primary CPC classification G03B21/145. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Aug 11 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).