Light pipe heat sink element
US-2015362167-A1 · Dec 17, 2015 · US
LED lamp with omnidirectional light distribution
US9303857B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9303857-B2 |
| Application number | US-201313793325-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 11, 2013 |
| Priority date | Feb 4, 2013 |
| Publication date | Apr 5, 2016 |
| Grant date | Apr 5, 2016 |
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- Title
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Abstract
Official abstract text for this publication.
An LED based lamp has an optically transmissive enclosure connected to a base. The base may include a heat sink. A substrate is positioned in the enclosure and supports a plurality of LEDs where the periphery of the substrate has alternating recessed portions and protruding portions that define a plurality of laterally extending projections. One LED is located on each of the projections to increase the amount of down light generated by the lamp.
First claim
Opening claim text (preview).
The invention claimed is: 1. A lamp comprising: an optically transmissive enclosure; a base connected to the enclosure defining a longitudinal axis of the lamp extending from the base to a distal end of the enclosure; a substrate comprising a surface disposed substantially perpendicularly to the longitudinal axis supporting a plurality of LEDs in the enclosure positioned to direct light primarily away from base wherein the periphery of the substrate comprises alternating first…
Assignees
Inventors
Classifications
Mechanical Engineering · mapped topic
- F21V29/22Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
- F21V29/773Primary
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US9303857B2 cover?
- An LED based lamp has an optically transmissive enclosure connected to a base. The base may include a heat sink. A substrate is positioned in the enclosure and supports a plurality of LEDs where the periphery of the substrate has alternating recessed portions and protruding portions that define a plurality of laterally extending projections. One LED is located on each of the projections to incr…
- Who is the assignee on this patent?
- Cree Inc
- What technology area does this patent fall under?
- Primary CPC classification F21V29/22. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Apr 05 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).