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US 7,318,651 B2Granted
Flash module with quantum dot light conversion
AssigneeAvago Technologies ECBU IP (Singapore) Pte. Ltd.
InventorsJanet Bee Yin Chua, Klan Shin Lee, Kee Yean Ng
Life of this patent
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Abstract
A flash module includes a first light source emitting a first primary light has a first wavelength-converting overlay disposed on the first light source to provide a first color of light. The first wavelength-converting overlay includes a first plurality of quantum dots dispersed in a matrix material. The flash module also includes a second light source providing a second color of light.
Claims25
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;
- and
- a second light source providing a second color of light;
- wherein the second light source emits a second primary light being a third color of light;
- and wherein the first color of light, the second color of light and at least one of the first primary color of light and the second primary color of light are mixed in the flash module to produce essentially white light having a color temperature of between 3,500 degrees Kelvin and 8,500 degrees Kelvin.
4 more elements
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;
- and
- a second light source providing a second color of light;
- wherein the second light source emits a second primary light being a third color of light;
- the first color of light, the second color of light, and the third color of light being mixed in the flash module to produce essentially white light having a color temperature of 6,500 degrees Kelvin and a color rendering index of at least 95.
4 more elements
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;
- and
- a second light source providing a second color of light;
- wherein the second light source further comprises a second wavelength-converting overlay.
3 more elements
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.
3 more elements
Dependencies are inferred from the claim text.