COLOR CONTROL BY ALTERATION OF WAVELENGTH CONVERTING ELEMENT
4 Assignments
0 Petitions
Accused Products
Abstract
A light emitting device is produced by depositing a layer of wavelength converting material over the light emitting device, testing the device to determine the wavelength spectrum produced and correcting the wavelength converting member to produce the desired wavelength spectrum. The wavelength converting member may be corrected by reducing or increasing the amount of wavelength converting material. In one embodiment, the amount of wavelength converting material in the wavelength converting member is reduced, e.g., through laser ablation or etching, to produce the desired wavelength spectrum.
95 Citations
34 Claims
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1-20. -20. (canceled)
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21. A method comprising:
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providing a first bonding layer between a light emitting element and a wavelength converting member; providing a second bonding layer between the wavelength converting member and an optical element, such that the first and second bonding layers are on opposite sides of the wavelength converting member; bonding the light emitting element and the wavelength converting member together with the first bonding layer; and bonding the wavelength converting member and the optical element together with the second bonding layer. - View Dependent Claims (22, 23, 24, 25, 28, 29, 30, 31, 32, 33, 34)
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26. The method of claim 0, wherein the first bonding temperature and second bonding temperature are approximately the same.
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27. The method of claim 0, wherein the second bonding temperature is higher than the first bonding temperature.
Specification