Wavelength conversion component and light source module
AssigneeDelta Electronics, Inc.
InventorsHung-Ying Lin, Yen-I Chou
Life of this patent
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Abstract
A wavelength conversion component includes a substrate, a reflection layer, and a phosphor layer. The reflection layer is disposed on the substrate and extends along a first direction. The reflection layer has a top surface that is away from the substrate. The top surface has a height variation on a second direction that is perpendicular to the first direction along the first direction. The phosphor layer is disposed on the reflection layer. The phosphor layer has a thickness variation on the second direction along the first direction. A ratio of the height of the top surface and the thickness of the phosphor layer increases and decreases reciprocally along the first direction.
Claims14
A wavelength conversion component, comprising:
- a substrate;
- a reflection layer disposed on the substrate and extending along a first direction, the reflection layer having a top surface away from the substrate, the top surface having a height variation in a second direction perpendicular to the first direction along the first direction;
- and
- a phosphor layer disposed on the reflection layer, the phosphor layer having a thickness variation in the second direction along the first direction,
- wherein a ratio of a height of the top surface and a thickness of the phosphor layer increases and decreases reciprocally along the first direction,
- wherein the reflection layer further comprises a plurality of reflection units each having a recessed structure, at least one of the reflection units is formed by a plurality of planes that are spliced, and an angle between a sidewall of at least one of the reflection units and the second direction is greater than 45 degrees.
A light source module, comprising:
- a wavelength conversion component comprising:
- a substrate;
- a reflection layer disposed on the substrate and extending along a first direction, the reflection layer having a top surface away from the substrate, the top surface having a height variation in a second direction perpendicular to the first direction along the first direction;
- and
- a phosphor layer disposed on the reflection layer, the phosphor layer having a thickness variation in the second direction along the first direction, wherein a ratio of a height of the top surface and a thickness of the phosphor layer increases and decreases reciprocally along the first direction;
- and
- a light source configured to emit light to the wavelength conversion component, the light forming a light spot on the phosphor layer,
- wherein the reflection layer of the wavelength conversion component further comprises a plurality of reflection units, and a ratio of a width of at least one of the reflection units to a width of the light spot is in a range from 1/2 to 1/20.
Dependencies are inferred from the claim text.