Light emitting apparatus generating white light by mixing of light of a plurality of oscillation wavelengths
First Claim
1. A light emitting apparatus generating white light by mixing a plurality of light, comprising:
- a first light emitting device portion emitting first light having first and second oscillation peak wavelengths corresponding to a first driving current;
a second light emitting device portion emitting second light having a third oscillation peak wavelength and having a complementary color of a color of said first light corresponding to a second driving current different from said first driving current; and
a driving portion supplying said first and second driving currents to said first and second light emitting device portions, respectively.
1 Assignment
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Accused Products
Abstract
A first light emitting diode and a second light emitting diode are connected in parallel between a first node and a second node. The two light emitting diodes are connected to each other in such a manner that, an anode of each one light emitting diode is electrically connected to a cathode of the other light emitting diode. As a driving portion applies an AC voltage to each of the two light emitting diodes, a light emitting apparatus can alternately emit light of two colors (blue and green) and light of one color (red). Therefore, since white light can be generated with one driving circuit, size and cost reductions of a light emitting apparatus can be attained. As a result, a light emitting apparatus which is small and capable of easy adjustment of chromaticity can be provided.
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Citations
11 Claims
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1. A light emitting apparatus generating white light by mixing a plurality of light, comprising:
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a first light emitting device portion emitting first light having first and second oscillation peak wavelengths corresponding to a first driving current;
a second light emitting device portion emitting second light having a third oscillation peak wavelength and having a complementary color of a color of said first light corresponding to a second driving current different from said first driving current; and
a driving portion supplying said first and second driving currents to said first and second light emitting device portions, respectively. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification