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US 10,873,014 B2Granted
Light-emitting device
AssigneeEpistar Corporation
InventorsMin-Hsun Hsieh, Shih-An Liao
Life of this patent
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Abstract
A light-emitting device includes a carrier, a light-emitting unit disposed on the carrier, a reflective element arranged on the light-emitting unit, and an optical element arranged on the carrier and surrounding the light-emitting unit.
Claims18
A light-emitting device, comprising:
- a carrier comprising a mirror reflection surface and a bottom surface opposite to the mirror reflection surface;
- a light-emitting unit on the mirror reflection surface;
- a reflective layer on the light-emitting unit and having a top surface and a side surface;
- and
- a first optical structure surrounding the light-emitting unit and the reflective layer,
- wherein the first optical structure comprises a topmost end higher than the light-emitting unit and lower than the top surface.
3 more elements
A light-emitting device, comprising:
- a carrier comprising a mirror reflection surface and a bottom surface opposite to the mirror reflection surface;
- a light-emitting unit on the mirror reflection surface;
- a reflective layer on the light-emitting unit and having a top surface and a side surface;
- a first optical structure surrounding the light-emitting unit and the reflective layer;
- and
- a virtual center line passing through the light-emitting device,
- wherein a light intensity of the light-emitting device has a distribution being substantially symmetrical with the virtual center line, and
- wherein the light intensity of light-emitting device has a maximum value on two sides within an angle range between 40° and 60° with respect to the virtual center line.
5 more elements
Dependencies are inferred from the claim text.