Total internal reflection lens to improve color mixing of an led light source
US-2024126055-A1 · Apr 18, 2024 · US
Illumination unit, projection display unit, and direct-view display unit
US9212802B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9212802-B2 |
| Application number | US-201214005490-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 15, 2012 |
| Priority date | Mar 28, 2011 |
| Publication date | Dec 15, 2015 |
| Grant date | Dec 15, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
An illumination system including one or more light sources each including a solid-state light-emitting device; and an optical member configured to allow light incident from the solid-state light-emitting device to pass therethrough and exit therefrom, and at least one of the chips in the one or more light sources is configured of a laser diode. The optical member includes an integrator including a first fly-eye lens on which light from the solid-state light-emitting device is incident and a second fly-eye lens on which light from the first fly-eye lens is incident, and uniformizing a luminance distribution of light in a predetermined illumination region illuminated with light incident from the solid-state light-emitting device. A major-axis direction of a luminance distribution shape of light incident on an incident plane of the first fly-eye lens is different from arrangement directions of the cells in the first fly-eye lens.
First claim
Opening claim text (preview).
What is claimed is: 1. An illumination unit comprising: one or more light sources each including a solid-state light-emitting device, the solid-state light-emitting device configured to emit light from a light emission region thereof, the light emission region including one or more dot-shaped or non-dot-shaped light-emitting spots; and an optical member configured to allow light incident from the solid-state light-emitting device to pass therethrough and exit therefrom, where…
Assignees
Inventors
Classifications
Electricity · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9212802B2 cover?
- An illumination system including one or more light sources each including a solid-state light-emitting device; and an optical member configured to allow light incident from the solid-state light-emitting device to pass therethrough and exit therefrom, and at least one of the chips in the one or more light sources is configured of a laser diode. The optical member includes an integrator includin…
- Who is the assignee on this patent?
- Miura Koji, Sony Corp
- What technology area does this patent fall under?
- Primary CPC classification F21V5/007. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Dec 15 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).