SEMICONDUCTOR LIGHT EMITTING DEVICE HAVING REFLECTION PLATE WITH HEAT DISSIPATION FUNCTION

摘要

PROBLEM TO BE SOLVED: To provide a semiconductor light emitting device having a reflection plate with heat dissipation function for dissipating heat produced from an LED chip to an outside by constituting the reflection plate enclosing a light emitting element of a substance which is excellent not only in reflectance but also in thermal conductivity.

SOLUTION: The device is constituted of at least one or more semiconductor light emitting element for radiating blue light and a reflection plate which rises from the bottom of a base substrate by a fixed height and encloses the semiconductor light emitting element. The reflection plate consists of a material with high light reflectance of a surface and high thermal conductivity, reflects light radiated from a light emitting element and forms uniform plane light, dissipates heat radiated from the light emitting element to an outside, absorbs at least a part of the blue light radiated from the light emitting element and projects white light to an outside of the device with a combination of the blue light radiated from the light emitting element and light of other wavelength comprising a light transmitting cover layer wherein a color conversion substance for radiating the light of other wavelength is contained.

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