Light emitting apparatus and light radiator including the same
A light emitting apparatus includes a substrate, a plurality of light emitting structures, a window, and a reflector. The substrate has a luminous region and a non-luminous region. The plurality of light emitting structures is disposed on the luminous region of the substrate. The window has a dome shape and is disposed to cover the luminous region. The window is configured to control a traveling path of light emitted from the a plurality of light emitting structures. The reflector is configured to support the window and reflect the light emitted from the plurality of light emitting structures. The reflector has an opening that exposes the plurality of light emitting structures mounted on the substrate. A distance between two adjacent light emitting structures of the plurality of light emitting structures is 500 micrometers or less.
1. A light emitting device comprising:
a substrate including a luminous region and a non-luminous region; and
a light emitter disposed on the luminous region of the substrate and configured to emit light with a first range of a beam angle, the light emitter including a first electrode and a second electrode;
a window disposed on the substrate and configured to cover the luminous region, the window further configured to control a traveling path of light emitted from the light emitter to have a second range of the beam angle that is different from the first range of the beam angle;
a first pad disposed on the substrate and electrically coupled to the first electrode of the light emitter;
a second pad disposed on the substrate and electrically coupled to the second electrode of the light emitter;
a first insulator disposed on the luminous region of the substrate and configured to insulate the first pad from the second pad, the first insulator covering at least a region of an upper surface of the substrate; and
a second insulator disposed on the non-luminous region of the substrate and configured to cover a region of the upper surface of the substrate except for the luminous region,
wherein the first insulator is disposed between the first pad and the second pad,
wherein the second insulator is configured to cover a region of the second pad and wherein the second insulator, the region of the second pad, and a region of the first insulator are disposed along a direction, and
wherein the light emitter is disposed on the first pad where the second insulator is absent and electrically connected to the second pad where the second insulator is absent.
2. The light emitting device of claim 1 , wherein the non-luminous region is provided with conductive patterns electrically connected to the light emitter.
3. The light emitting device of claim 1 , wherein the second pad comprises a region extended from the luminous region of the substrate.
4. The light emitting device of claim 3 , wherein the region of the second pad overlaps a region of the non-luminous region of the substrate.
5. The light emitting device of claim 1 , further comprising a conductive adhesive layer disposed on the first pad.
6. The light emitting device of claim 5 , wherein the conductive adhesive layer is disposed between the first pad and the first electrode of the light emitter.
7. The light emitting device of claim 1 , wherein the second pad is spaced apart from the light emitter and the luminous region of the substrate.
8. The light emitting device of claim 1 , further comprising a terminal source disposed on the non-luminous region of the substrate and electrically connected to at least one of the first pad or the second pad.
9. The light emitting device of claim 1 , further comprising at least one wavelength converter disposed above the luminous region.
10. A light emitting device comprising:
a substrate having a first region and a second region;
a light emitter disposed on the first region of the substrate, the light emitter including a first electrode and a second electrode;
a window disposed on the substrate and configured to cover the first region, the window further configured to control a traveling path of light emitted from the light emitter; and
a first pad and a second pad that are disposed on the first region to overlap at least a region to the light emitter, the first pad electrically coupled to first electrode of the light emitter and the second pad electrically coupled to the second electrode of the light emitter;
a first insulator disposed on the substrate and configured to cover a region of an upper surface of the substrate; and
a second insulator disposed on the second region of the substrate and configured to cover a region of the substrate except for the first region and cover a region of the second pad, wherein the second insulator, the region of the second pad, and a region of the first insulator are disposed along a direction,
wherein the first insulator is disposed between the first pad and the second pad,
wherein the second insulator covers a region of an upper surface of the second pad, and
the light emitter is disposed on the first pad where the second insulator is absent and electrically connected to the second pad where the second insulator is absent.
11. The light emitting device of claim 10 , wherein a first light emitted from the first light has a first light pattern and a second light emitted from the light emitting device has a second light pattern.
12. The light emitting device of claim 11 , wherein the first light pattern is different from the second light pattern.
13. The light emitting device of claim 10 , further comprising a conductive adhesive layer disposed between the first pad and the first electrode of the light emitter.
14. The light emitting device of claim 10 , further comprising a terminal source disposed on the second region of the substrate and electrically connected to at least one of the first pad or second pad.
15. A light emitting device comprising:
a substrate including a luminous region and a non-luminous region;
a light emitter disposed on the luminous region of the substrate and including a first electrode and a second electrode;
a window disposed on the substrate and configured to cover the luminous region, the window configured to control a traveling path of light emitted from the light emitter;
a first pad and a second pad that are disposed on the substrate, the first pad electrically coupled to the first electrode of the light emitter and the second pad electrically coupled to the second electrode of the light emitter;
a first insulator disposed between the first pad and the second pad; and
a second insulator disposed on the substrate and configured to cover a region of the substrate except for the luminous region and cover a region of the second pad, wherein the second insulator, the region of the second pad, and a region of the first insulator are disposed along a direction,
wherein the light emitter is disposed on the first pad to which the second insulator is not provided and electrically connected to the second pad to which the second insulator is not provided.
16. The light emitting device of claim 15 , wherein the non-luminous region is provided with a conductive pattern electrically connected to the light emitter.
17. The light emitting device of claim 15 , further comprising at least one wavelength converter disposed above the luminous region.
18. The light emitting device of claim 15 , wherein a first light emitted from the light emitter has a first light pattern and a second light emitted from the light emitting device has a second light pattern.
19. The light emitting device of claim 18 , wherein the first light pattern is different from the second light pattern.
20. The light emitting device of claim 15 , further comprising a terminal source disposed on the non-luminous region.