Multi-laser package using shared optics
US-9774172-B1 · Sep 26, 2017 · US
Light emitting apparatus and projector
US10833484B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10833484-B2 |
| Application number | US-201916521651-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 25, 2019 |
| Priority date | Jul 26, 2018 |
| Publication date | Nov 10, 2020 |
| Grant date | Nov 10, 2020 |
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Abstract
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A light emitting apparatus including a plurality of first light emitters and a plurality of second light emitters that differ from the first light emitters in terms of resonance wavelength, in which the second light emitters are each disposed between each adjacent pair of the first light emitters, first light that resonates in the plurality of first light emitters is in phase, and second light that resonates in the plurality of second light emitters is in phase.
First claim
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What is claimed is: 1. A light emitting apparatus comprising: a plurality of first light emitters; and a plurality of second light emitters that differ from the first light emitters in terms of resonance wavelength, wherein the second light emitters are each disposed between each adjacent pair of the first light emitters, first light that resonates in the plurality of first light emitters is in phase, and second light that resonates in the plurality of second light emitters is in phase. 2. The light emitting apparatus according to claim 1 , wherein the plurality of first light emitters are arranged in directions in which the first light resonates, and the plurality of second light emitters are arranged in directions in which the second light resonates. 3. The light emitting apparatus according to claim 1 , wherein the first light emitters and the second light emitters each include a light emission layer. 4. The light emitting apparatus according to claim 1 , wherein the first light emitter includes a plurality of first structures, the plurality of first structures are periodically arranged, the second light emitter includes a plurality of second structures, the plurality of second structures are periodically arranged, the first structures are each a columnar portion, and the second structures are each a columnar portion. 5. The light emitting apparatus according to claim 1 , wherein the first light emitter includes a plurality of first structures, the plurality of first structures are periodically arranged, the second light emitter includes a plurality of second structures, the plurality of second structures are periodically arranged, the first structures are each an opening, and the second structures are each an opening. 6. The light emitting apparatus according to claim 4 , wherein the plurality of first structures are arranged in a regular triangular lattice and the plurality of second structures are arranged in a regular triangular lattice, and the plurality of first light emitters are arranged in a regular triangular lattice and the plurality of second light emitters are arranged in a regular triangular lattice. 7. The light emitting apparatus according to claim 4 , wherein the plurality of first structures are arranged in a square lattice and the plurality of second structures are arranged in a square lattice, and the plurality of first light emitters are arranged in a square lattice and the plurality of second light emitters are arranged in a square lattice. 8. The light emitting apparatus according to claim 1 , wherein a distance between adjacent pair of the first light emitters is a distance that allows the first light that resonates in one of adjacent first light emitters to couple with the first light that resonates in another of adjacent first light emitters, and a distance between adjacent pair of the second light emitters is a distance that allows the second light that resonates in one of adjacent second light emitters to couple with the second light that resonates in another of adjacent second light emitters. 9. A projector comprising the light emitting apparatus according to claim 1 .
Assignees
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Classifications
Comprising a photonic bandgap structure · CPC title
in AIIIBV compounds, e.g. AlGaAs-laser, {InP-based laser} · CPC title
comprising nanoparticles · CPC title
using laser light sources (using laser beams scanning the display screen H04N9/3129) · CPC title
Structures having reduced dimensionality, e.g. quantum wires · CPC title
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- What does patent US10833484B2 cover?
- A light emitting apparatus including a plurality of first light emitters and a plurality of second light emitters that differ from the first light emitters in terms of resonance wavelength, in which the second light emitters are each disposed between each adjacent pair of the first light emitters, first light that resonates in the plurality of first light emitters is in phase, and second light …
- Who is the assignee on this patent?
- Seiko Epson Corp, Sophia School Corp
- What technology area does this patent fall under?
- Primary CPC classification H01S5/423. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 10 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).