CCT MODULATING METHOD, LED LIGHT SOURCE MODULE, AND PACKAGE STRUCTURE THEREOF
First Claim
1. A correlated color temperature (CCT) modulating method, comprising:
- modulating a white light emitting diode (LED) light source to emit a first white light;
modulating at least one LED light source to emit at least one broad-spectrum monochromatic light; and
mixing the first white light and the broad-spectrum monochromatic light to produce a second white light, wherein a color rendering index (CRI) of the second white light is greater than a CRI of the first white light, and a color coordinate of the first white light are different from a color coordinate of the second white light.
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Abstract
A correlated color temperature (CCT) modulating method including following steps is provided. A white LED light source is modulated to emit a first white light. At least one LED light source is modulated to emit a second white light, wherein the second white light includes at least one broad-spectrum monochromatic light. The first white light and the second white light are mixed to produce a third white light. The color rendering index (CRI) of the third white light is greater than those of the first white light and the second white light, and the color coordinates of the first white light, the second white light, and the third white light are different from each other. Furthermore, an LED light source module and a package structure thereof are also provided.
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Citations
44 Claims
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1. A correlated color temperature (CCT) modulating method, comprising:
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modulating a white light emitting diode (LED) light source to emit a first white light; modulating at least one LED light source to emit at least one broad-spectrum monochromatic light; and mixing the first white light and the broad-spectrum monochromatic light to produce a second white light, wherein a color rendering index (CRI) of the second white light is greater than a CRI of the first white light, and a color coordinate of the first white light are different from a color coordinate of the second white light. - View Dependent Claims (2, 3, 4, 5)
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6. A CCT modulating method, comprising:
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modulating a white LED light source to emit a first white light; modulating at least one LED light source to emit a second white light, wherein the second white light comprises at least one broad-spectrum monochromatic light; and mixing the first white light and the second white light to produce a third white light. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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14. A variable-CCT LED light source module, comprising:
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a white LED light source emitting a first white light; at least one LED light source emitting at least one broad-spectrum monochromatic light; and a control unit exciting the white LED light source and the LED light source to emit the first white light and the broad-spectrum monochromatic light, wherein the first white light and the broad-spectrum monochromatic light form a second white light, a CRI of the second white light is greater than a CRI of the first white light, and a color coordinate of the first white light are different from a color coordinate of the second white light. - View Dependent Claims (15, 16, 17, 18)
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19. A variable-CCT LED light source module, comprising:
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a white LED light source emitting a first white light; at least one LED light source emitting a second white light, wherein the second white light comprises at least one broad-spectrum monochromatic light; and a control unit exciting the white LED light source and the LED light source to emit the first white light and the second white light, wherein the first white light and the second white light form a third white light. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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26. An LED package structure, comprising:
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a substrate comprising a plurality of recesses, wherein the recesses comprise a plurality of recess depths, and at least part of the recess depths are different from each other; and a plurality of LED chips, disposed in the recesses, wherein each of the LED chips emits a corresponding light beam, wherein at least one first white light and at least one second white light are produced after the light beams pass through the recesses; wherein color coordinates of the second white light and the first white light are different from each other. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34)
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35. An LED package structure, comprising:
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a substrate, comprising a plurality of recesses, wherein the recesses comprise a plurality of recess depths, and at least part of the recess depths are different from each other; and a plurality of LED chips, disposed in the recesses, wherein each of the LED chips emits a corresponding light beam, wherein at least one first white light and at least one broad-spectrum monochromatic light are produced after the light beams pass through the recesses. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42)
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43. An LED package structure, comprising:
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a substrate comprising at least two recesses, wherein the recesses have different depths; and a plurality of LED chips respectively disposed in the recesses, wherein the LED chips emit at least one first light beam and at least one second light beam, wherein the first light beam and the second light beam have different peak wavelengths. - View Dependent Claims (44)
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Specification