LIGHT EMITTING DEVICE HAVING VARIOUS COLOR TEMPERATURE
First Claim
1. A light emitting device, comprising:
- a first light emitting part comprising a first LED chip and a first phosphor, and emitting a daylight color having a color temperature of 6000 K or more;
a second light emitting part comprising a second LED chip and a second phosphor, and emitting white light having a color temperature less than 6000 K;
a third light emitting part comprising a third LED chip and emitting light in a visible range of 580 nm or more,wherein the second and third light emitting parts are operable independently of the first light emitting part, and realize a warm white color having a color temperature of 3000 K or less with the white light emitted from the second light emitting part and the light emitted from the third light emitting part.
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Accused Products
Abstract
A light emitting device capable of emitting light having various color temperatures is disclosed. The light emitting device includes a first light emitting part emitting a daylight color having a color temperature of 6000 K or more, a second light emitting part emitting white light having a color temperature less than 6000 K, and a third light emitting part emitting light in a visible range of 580 nm or more. The second and third light emitting parts are operable independently of the first light emitting part, and realize a warm white color having a color temperature of 3000 K or less with the white light emitted from the second light emitting part and the light emitted from the third light emitting part. The light emitting device realizes white light of various spectra and color temperatures corresponding to desired mood and utility. The light emitting device is controlled to emit light having a suitable wavelength or a suitable color temperature depending on the circadian rhythm of human, thereby enabling improvement of the user'"'"'s health.
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Citations
18 Claims
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1. A light emitting device, comprising:
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a first light emitting part comprising a first LED chip and a first phosphor, and emitting a daylight color having a color temperature of 6000 K or more; a second light emitting part comprising a second LED chip and a second phosphor, and emitting white light having a color temperature less than 6000 K; a third light emitting part comprising a third LED chip and emitting light in a visible range of 580 nm or more, wherein the second and third light emitting parts are operable independently of the first light emitting part, and realize a warm white color having a color temperature of 3000 K or less with the white light emitted from the second light emitting part and the light emitted from the third light emitting part. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A light emitting device, comprising:
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a first light emitting part comprising a first LED chip and a first phosphor, and emitting white light having a higher color temperature; a second light emitting part comprising a second LED chip and a second phosphor, and emitting white light having a lower color temperature; and a third light emitting part including a third LED chip emitting light in a visible range of 580 nm or more, wherein the second and third light emitting parts are operable independently of the first light emitting part, and realize a warm white color having a color temperature of 3000 K or less with the white light emitted from the second light emitting part and the light emitted from the third light emitting part.
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Specification