Energy augmentation structures, energy emitters or energy collectors containing the same, and their use in solar cells and other energy conversion devices
US-2024115878-A1 · Apr 11, 2024 · US
Rectangular light duct extraction
US9476554B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9476554-B2 |
| Application number | US-201314434450-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 21, 2013 |
| Priority date | Oct 30, 2012 |
| Publication date | Oct 25, 2016 |
| Grant date | Oct 25, 2016 |
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.
The present disclosure describes light delivery and distribution components of a ducted lighting system having a cross-section that includes planar duct portions, and a light source. The delivery and distribution system (that is, light duct and light duct extractor) can function effectively with any light source that is capable of delivering light which is substantially collimated about the longitudinal axis of the light duct, and which is also preferably substantially uniform over the inlet of the light duct.
First claim
Opening claim text (preview).
What is claimed is: 1. A lighting element, comprising: a light duct having a longitudinal axis, a light duct cross-section perpendicular to the longitudinal axis, a reflective interior surface defining a cavity, and an exterior surface; a plurality of voids disposed in the reflective interior surface defining a light output surface, whereby light can exit the cavity; a turning film disposed adjacent to the light output surface and exterior to the cavity, the turning film compr…
Assignees
Inventors
Classifications
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
- F21S11/007Primary
Mechanical Engineering · mapped topic
- F21S19/005Primary
Mechanical Engineering · 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 US9476554B2 cover?
- The present disclosure describes light delivery and distribution components of a ducted lighting system having a cross-section that includes planar duct portions, and a light source. The delivery and distribution system (that is, light duct and light duct extractor) can function effectively with any light source that is capable of delivering light which is substantially collimated about the lon…
- Who is the assignee on this patent?
- 3M Innovative Properties Co
- What technology area does this patent fall under?
- Primary CPC classification F21S11/007. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Oct 25 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).