Light conversion substrate and light emitting package and automobile lamp including the same
AssigneeLG Innotek Co., Ltd.
InventorsJin Gyeong Park, Won Jin Kim, In Jae Lee
Life of this patent
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Abstract
Provided are a light conversion substrate intended for converting an excited beam into a conversion beam, and a light emitting package including the light conversion substrate, the light conversion substrate being implemented in a structure in which side parts of the light conversion substrate for converting a beam emitted from a light emitting element are formed to have different tapers so that uniform color distribution can be implemented all over the entire surface of the light conversion substrate upon packaging the light conversion substrate with the light emitting element.
Claims11
A light emitting package, comprising:
- a light emitting unit emitting an excited beam;
- and
- a light conversion substrate disposed on the light emitting unit,
- wherein the light conversion substrate comprises:
- a first side part having a first taper;
- and
- a second side part disposed on an edge portion of the light conversion substrate and having a second taper different from the first taper, wherein the second side part exposes a connection terminal of the light emitting unit,
- wherein the first taper has a straight line connecting to an upper end and a lower end of the first side part and the second taper has a curved line connecting to an upper end and a lower end of the second side part,
- wherein the first taper and second taper are inclined so that an area of the light conversion substrate decreases in the direction away from the light emitting unit,
- wherein an angle of the second taper is larger than an angle of the first taper,
- wherein the angle of first taper is an angle between the straight line and a vertical segment extending in a vertical direction from the lower end point of the first side part,
- wherein the angle of second taper is an angle between an virtual straight line and a vertical segment extending in a vertical direction from the lower end of the second side part, and
- wherein the virtual straight line connects the upper end and the lower end of the second side part.
An automobile lamp, comprising:
- a light emitting package;
- and
- a reflective module that reflects a conversion beam passing through a light conversion substrate for converting an excited beam emitted from a light emitting unit of the light emitting package into the conversion beam,
- wherein the light emitting package comprises:
- a light conversion substrate disposed on the light emitting unit,
- wherein the light conversion substrate comprises:
- a first side part having a first taper;
- and
- a second side part disposed on an edge portion of the light conversion substrate and having a second taper different from the first taper, wherein the second side part exposes a connection terminal of the light emitting unit,
- wherein the first taper has a straight line connecting to an upper end and a lower end of the first side part and the second taper has a curved line connecting to an upper end and a lower end of the second side part,
- wherein the first taper and second taper are inclined so that an area of the light conversion substrate decreases in the direction away from the light emitting unit,
- wherein an angle of the second taper is larger than an angle of the first taper,
- wherein the angle of first taper is an angle between the straight line and a vertical segment extending in a vertical direction from the lower end point of the first side part,
- wherein the angle of second taper is an angle between an virtual straight line and a vertical segment extending in a vertical direction of the lower end of the second side part, and
- wherein the virtual straight line connects the upper end and the lower end of the second side part.
Dependencies are inferred from the claim text.