Two-piece LCD projection device with light filter function and projection method thereof
US-12140854-B1 · Nov 12, 2024 · US
Illumination control
US9268157B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9268157-B2 |
| Application number | US-201213824276-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 26, 2012 |
| Priority date | Oct 26, 2012 |
| Publication date | Feb 23, 2016 |
| Grant date | Feb 23, 2016 |
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Abstract
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The methods, devices, and/or compositions described herein can be used to reduce variations, such as spatial and temporal variations, in luminance intensity. Luminance variation is reduced by varying some aspect of transmittance with respect to the intensity of light.
First claim
Opening claim text (preview).
What is claimed is: 1. A diffusion lens for a light source, the lens comprising an adjustable light diffusing layer, wherein the adjustable light diffusing layer is configured so that transmittance properties of the adjustable light diffusing layer can be variably adjusted during operation of a viewable device, such that transmittance through the adjustable light diffusing layer varies inversely with respect to an intensity of light impacting the adjustable light diffusing layer…
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Mechanical Engineering · mapped topic
- G02F1/133611Primary
Physics · mapped topic
- G02F1/0105Primary
Physics · mapped topic
Physics · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US9268157B2 cover?
- The methods, devices, and/or compositions described herein can be used to reduce variations, such as spatial and temporal variations, in luminance intensity. Luminance variation is reduced by varying some aspect of transmittance with respect to the intensity of light.
- Who is the assignee on this patent?
- Empire Technology Dev Llc
- What technology area does this patent fall under?
- Primary CPC classification G02F1/133611. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Feb 23 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).