Lightweight solid state light source with common light emitting and heat dissipating surface
US10121950B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2013 |
| Grant date | Nov 6, 2018 |
| Priority date | — |
| Expiry date | Nov 4, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/8583
Abstract
Lightweight solid state light sources with common light emitting and heat dissipating surfaces consisting of light emitting diodes (LED) in thermal contact to light transmitting thermally conductive elements and combined with a reflector element to form a light recycling cavity, provide both convective and radiative cooling from their light emitting surfaces, eliminating the need for appended heatsinks. The lightweight self-cooling solid state light sources integrate the electrical interconnect of the LEDs and other semiconductor devices to a single substrate that is both the heatsink and the light emitting element. The elimination of heavy appended heatsinks enables these sources to be easily moved, attached and mounted on suspended ceilings without requiring separate supporting means. The low profile and nonflammable properties of the light sources allow their use on fire barrier surfaces or partitions. The light sources can easily be integrated into ceilings, ceiling grids or ceiling tiles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.