Wavelength converting system
First Claim
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1. A wavelength converting system comprising:
- a wavelength converter, responsive to an illumination by a first electromagnetic radiation having a first wavelength, and providing a second electromagnetic radiation having a second dominant wavelength, wherein the first electromagnetic radiation has a higher energy level than the second electromagnetic radiation, and the first wavelength and the second dominant wavelength have a positive correlation.
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Abstract
An embodiment of the invention discloses a wavelength converting system capable of emitting a second electromagnetic radiation having a second wavelength in response to a first electromagnetic radiation having a first wavelength, wherein an energy level of the first electromagnetic radiation is higher than that of the second electromagnetic level, and a positive correlation is between the first wavelength and the second wavelength.
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Citations
21 Claims
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1. A wavelength converting system comprising:
a wavelength converter, responsive to an illumination by a first electromagnetic radiation having a first wavelength, and providing a second electromagnetic radiation having a second dominant wavelength, wherein the first electromagnetic radiation has a higher energy level than the second electromagnetic radiation, and the first wavelength and the second dominant wavelength have a positive correlation. - View Dependent Claims (2, 3)
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4. A wavelength converting system comprising:
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a first excitation wavelength emitted from a first light emitter; a first emission wavelength greater than the first excitation wavelength; a second excitation wavelength emitted from a second light emitter; and a second emission wavelength greater than the second excitation wavelength; wherein each of the first excitation wavelength, the first emission wavelength, the second excitation wavelength, and the second emission wavelength has chromaticity coordinates locating on a perimeter of a CIE chromaticity diagram, and a first line connects the first excitation wavelength and the first emission wavelength, a second line connects the second excitation wavelength and the second emission wavelength wherein the first line and the second line intersects in a region of the CIE chromaticity diagram. - View Dependent Claims (5, 6, 7, 8, 9)
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10. A wavelength converting system comprising:
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a radiation source; a first fluorescent material capable of being excited by the radiation source in a wavelength spectrum having a short wavelength and a long wavelength; and a second fluorescent material capable of being excited by the radiation source in the wavelength spectrum; wherein the first fluorescent material has a higher excitation efficiency than the second fluorescent material when being excited by the short wavelength, and a lower excitation efficiency than the second fluorescent material when being excited by the long wavelength. - View Dependent Claims (11, 12, 13)
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14. A wavelength converting system comprising:
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at least two light sources having a wavelength difference not less than 1 nm and not greater than 20 nm; and a wavelength converter on light paths of the at least two light sources and capable of being excited by one of the at least two light sources to provide a first mixed light having a first color temperature and by another one to provide a second mixed light having a second color temperature, wherein a difference between the first and second color temperatures is not greater than 100K. - View Dependent Claims (15, 16)
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17. A wavelength converting system comprising:
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a light-emitting semiconductor structure comprising an electron provider, a hole provider, a light-emitting layer between the electron provider and the hole provider, and a light extraction interface; and a wavelength converter on the light extraction interface and providing an output light in response to an excitation of an input light; wherein the input light has an input light wavelength, the output light has an output light dominant wavelength, and the input light wavelength and the output light dominant wavelength have a positive correlation. - View Dependent Claims (18)
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19. A wavelength converting system comprising:
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a light-emitting source selected from any one of applicable light-emitting diode units from a wafer, wherein the light emitting source comprises a light extraction interface, the applicable light-emitting diode units have a wavelength distribution ranged in few nanometers or tens of nanometer; and a wavelength converter on the light extraction interface and providing an output light in response to an input light from the light-emitting source; wherein a mixed color light is generated by the presence of the input light and the output light. - View Dependent Claims (20, 21)
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Specification