Intellectual Property Law

US Patent 7318651 - Multicolor quantum dot flash module

By blaisemouttet

Depending on the type of light source used for the flash from various cameras a different color tint may appear in the captured image. This patent from Avago Technologies teaches the use of quantum dots to produce red, green, and blue LEDs for a flash module to control the color temperature of the flash. Claim 14 reads:

14. A flash module comprising: a first light source emitting a first primary light and having a first wavelength-converting overlay disposed on the first light source providing a first color of light, the first wavelength-converting overlay including matrix material, and a first plurality of quantum dots dispersed in the matrix material; a second light source providing a second color of light; and a third light source providing a third color of light wherein the flash module mixes light from the first light source, the second light source, and the third light source to provide essentially white light.

Full post as published by TinytechIP on January 15, 2008 (boomark / email).