Light-emitting device
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.
1. 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.
2. The light-emitting device according to claim 1 , further comprising a second optical structure on and directly connected to the light-emitting unit.
3. The light-emitting device according to claim 2 , wherein the first optical structure has a refractive index different from that of the second optical structure.
4. The light-emitting device according to claim 1 , wherein the first optical structure is directly connected to the side surface.
5. The light-emitting device according to claim 1 , wherein the first optical structure comprises a protruded surface.
6. The light-emitting device according to claim 1 , further comprising an electrode on the bottom surface.
7. The light-emitting device according to claim 1 , further comprising an angle smaller than 90° formed between the first optical structure and the mirror reflection surface.
8. The light-emitting device according to claim 1 , wherein the first optical structure is formed on the carrier symmetrically.
9. The light-emitting device according to claim 1 , further comprising a virtual center line passing through the light-emitting device, and a light intensity of the light-emitting device having a distribution being substantially symmetrical with the virtual center line.
10. The light-emitting device according to claim 9 , 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.
11. 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.
12. The light-emitting device according to claim 11 , further comprising a second optical structure on and directly connected to the light-emitting unit.
13. The light-emitting device according to claim 12 , wherein the first optical structure has a refractive index different from that of the second optical structure.
14. The light-emitting device according to claim 11 , wherein the first optical structure is directly connected to the side surface.
15. The light-emitting device according to claim 11 , wherein the first optical structure comprises a protruded surface.
16. The light-emitting device according to claim 11 , further comprising an electrode on the bottom surface.
17. The light-emitting device according to claim 11 , further comprising an angle smaller than 90° formed between the first optical structure and the mirror reflection surface.
18. The light-emitting device according to claim 11 , wherein the first optical structure is formed on the carrier symmetrically.