Light-emitting device

The described light emitting device achieves miniaturization by arranging light emitting elements with angled optical axes and a light-transmitting incident surface, maintaining efficient laser beam coupling.

JP7807677B2Active Publication Date: 2026-01-28NICHIA CORP
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Patent Information

Application Number
JP2023531847
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-06-29
Filing Date
2022-06-21
Publication Date
2026-01-28
Estimated Expiration
2042-06-21

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Abstract

This light emission device is provided with a package having three or more light emission elements, a base section having a mounting surface on which the light emission elements are disposed, and side wall sections which are disposed around the light emission elements and include a translucent incidence surface. The three or more light emission elements have: a first light emission element for emitting, along a first optical axis, a first light having an emission peak at a first wavelength; a second light emission element for emitting, along a second optical axis, a second light having an emission peak at a second wavelength; and, a third light emission element for emitting, along a third optical axis, a third light having an emission peak at a third wavelength. The angle between the first optical axis and the second optical axis in a top view is 3° to 45°, inclusive. The distance between the first optical axis and the second optical axis increases as the first light and the second light respectively travel along the first optical axis and the second optical axis. The first light, the second light, and the third light are incident on the incidence surface.
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Citation Information

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