Multi-wavelength white light emitting diode
First Claim
1. A multi-wavelength white light emitting diode, comprising:
- a UV light emitting diode chip, emitting a light having a wavelength between 350˜
430 nm;
a red phosphor, excited by the UV light emitting diode chip to emit red light;
a blue light emitting diode chip, emitting a blue light having a wavelength between 400˜
500 nm; and
a green phosphor, excited by the blue light emitting diode chip to emit green light;
wherein, mixing the red light, the blue light and the green light forms a white light emitting diode.
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Accused Products
Abstract
A multi-wavelength white light emitting diode uses a UV light emitting diode chip and a blue light emitting diode chip to excite a red phosphor and a green phosphor and generates a white light emitting diode having good color rendering. The multi-wavelength white light emitting diode uses a UV light emitting diode chip that emits light having a wavelength of between 350˜430 nm to excite a red phosphor to emit red light having a wavelength of between 600˜700 nm. The present invention then uses a blue light emitting diode chip that emits light having a wavelength between of 400˜500 nm to emit blue light and uses the blue light emitting diode chip to excite a green phosphor to emit green light having a wavelength of between 490˜560 nm. Mixing the red light, the blue light and the green light forms a white light.
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Citations
36 Claims
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1. A multi-wavelength white light emitting diode, comprising:
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a UV light emitting diode chip, emitting a light having a wavelength between 350˜
430 nm;
a red phosphor, excited by the UV light emitting diode chip to emit red light;
a blue light emitting diode chip, emitting a blue light having a wavelength between 400˜
500 nm; and
a green phosphor, excited by the blue light emitting diode chip to emit green light;
wherein, mixing the red light, the blue light and the green light forms a white light emitting diode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A multi-wavelength white light emitting diode, comprising:
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a UV light emitting diode chip, emitting a light having a wavelength between 350˜
430 nm;
a red phosphor, excited by the UV light emitting diode chip to emit a red light;
a blue light emitting diode chip, emitting a blue light having a wavelength between 400˜
500 nm; and
a green phosphor, excited by the blue light-emitting diode chip to emit a green light;
a yellow phosphor, excited by the blue light-emitting diode chip to emit a yellow light;
wherein, mixing the red light, the blue light, the green light and the yellow light forms a white light. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A multi-wavelength white light emitting diode, comprising:
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a UV light emitting diode chip, emitting a light having a wavelength between 350˜
430 nm;
a red phosphor, excited by the UV light emitting diode chip to emit a red light;
a green phosphor, excited by the UV light emitting diode chip to emit a green light; and
a blue light emitting diode chip, emitting a blue light having a wavelength between 400˜
500 nm;
wherein, mixing the red light, the blue light and the green light forms a white light. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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27. A multi-wavelength white light emitting diode, comprising:
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a UV light emitting diode chip, emitting a light having a wavelength between 350˜
430 nm;
a red phosphor, excited by the UV light emitting diode chip to emit a red light;
a green phosphor, excited by the UV light emitting diode chip to emit a green light;
a blue light emitting diode chip, emitting a blue light having a wavelength between 400˜
500 nm; and
a yellow phosphor, excited by the blue light emitting diode chip to emit a yellow light;
wherein, mixing the red light, the blue light, the green light and the yellow light forms a white light. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification