Projection system and projector
US-2024176221-A1 · May 30, 2024 · US
Image projection apparatus and image projection method
US9523908B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9523908-B2 |
| Application number | US-201414166270-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 28, 2014 |
| Priority date | Feb 6, 2013 |
| Publication date | Dec 20, 2016 |
| Grant date | Dec 20, 2016 |
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Abstract
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An image projection method includes: reflecting, by a concave mirror, light having transmitted through one or more lenses after forming an intermediate-focused image of the light; and projecting an image onto a projection plane through reflecting the light reflected by the concave mirror by a plane mirror that has an aspect ratio of 1.9 or more.
First claim
Opening claim text (preview).
The invention is claimed as follows: 1. An image projection apparatus, comprising: a projection optical system including one or more lenses, a concave mirror, and a plane mirror that are provided in order from a light incidence side on which incident light is incident, and configured to project an image using the incident light, wherein the one or more lenses are configured to form an intermediate-focused image on a near side of the concave mirror, and the plane mirror has an as…
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- G03B21/28Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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- What does patent US9523908B2 cover?
- An image projection method includes: reflecting, by a concave mirror, light having transmitted through one or more lenses after forming an intermediate-focused image of the light; and projecting an image onto a projection plane through reflecting the light reflected by the concave mirror by a plane mirror that has an aspect ratio of 1.9 or more.
- Who is the assignee on this patent?
- Sony Corp
- What technology area does this patent fall under?
- Primary CPC classification G03B21/28. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Dec 20 2016 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).