Illuminative module for emitting white light via mixing the primary colors with fourth color

• US 20100157586A1
• Filed: 12/24/2008
• Published: 06/24/2010
• Est. Priority Date: 12/24/2008
• Status: Abandoned Application

• Current Assignee: Joe Yang
• Original Assignee: Joe Yang
• Inventors: Yang, Joe
• Application Number:
  US12/317,516
• Publication Number:
  US 20100157586A1
• Time in Patent Office: Days
• US Class Current: 362/230
• CPC Class Codes: F21K 9/00 Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
• CPC Class Codes: F21Y 2105/10 comprising a two-dimensional array of point-like light-generating elements
• CPC Class Codes: F21Y 2105/12 characterised by the geometrical disposition of the light-generating elements, e.g. arranging light-generating elements in differing patterns or densities
• CPC Class Codes: F21Y 2113/13 comprising an assembly of point-like light sources
• CPC Class Codes: F21Y 2113/17 forming a single encapsulated light source
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

Disclosed is an illuminative module for enhancing the white balance while reducing thermal drift and color spots. The illuminative module includes a substrate and light-emitting elements provided on the substrate to emitting light of the primary colors and a fourth color, respectively, so that the light of the primary colors is mixed with the light of the fourth color to provide white light.

Claims

1. An illuminative module for enhancing the white balance while reducing thermal drift and color spots, the illuminative module comprising a substrate and light-emitting elements provided on the substrate to emitting light of the primary colors and a fourth color, respectively, so that the light of the primary colors is mixed with the light of the fourth color to provide white light.

2. The illuminative module according to claim 1, wherein the substrate is a printed circuit board, each of the light-emitting elements is a light-emitting diode.

3. The illuminative module according to claim 2, wherein the light-emitting diode comprises a package substrate and at least one chip provided on the package substrate.

4. The illuminative module according to claim 1, wherein the wavelength of the fourth color is 560 to 610 nanometers.

5. The illuminative module according to claim 1, wherein the wavelength of the fourth color is 470 to 500 nanometers.

6. An illuminative module for enhancing the white balance while reducing thermal drift and color spots, the illuminative module comprising a substrate and light-emitting elements provided on the substrate, wherein each of the light-emitting elements comprises three chips for emitting light of the primary colors and another chip for emitting light of a fourth color.

7. The illuminative module according to claim 6, wherein the wavelength of the fourth color is 560 to 610 nanometers.

8. The illuminative module according to claim 6, wherein the wavelength of the fourth color is 470 to 500 nanometers.

9. An illuminative module for enhancing the white balance while reducing thermal drift and color spots, the illuminative module comprises a substrate and pairs of light-emitting elements provided on the substrate, wherein each of the pairs comprises first and second light-emitting elements for emitting light of the primary colors and a fourth color together.

10. The illuminative module according to claim 9 wherein the first light-emitting element emits light of two of the colors while the second light-emitting element emits light of the other colors.

11. The illuminative module according to claim 9 wherein the first light-emitting element emits light of the primary colors while the second light-emitting element emits light of the fourth color.

12. The illuminative module according to claim 9, wherein the wavelength of the fourth color is 560 to 610 nanometers.

13. The illuminative module according to claim 9, wherein the wavelength of the fourth color is 470 to 500 nanometers.