LIGHT EMITTING DEVICE, MANUFACTURING METHOD, AND WAVEGUIDE STRUCTURE

Japanese Patent JP2023010387

A

To provide a light emitting device capable of improving the light utilization efficiency and the wavelength conversion efficiency, a manufacturing method, and a waveguide structure.SOLUTION: A light emitting device 1 includes a light source 2 and a waveguide structure 5. The light source 2 emits light 6 which has directivity. The waveguide structure 5 includes an optical waveguide 3 and an exterior part 4. The optical waveguide 3 has an incident end face 7 and an outgoing end face 8, the wavelength of the light 6 incident from the incident end face 7 is converted ad output from the outgoing end face 8. The exterior part 4 has light transparency and covers the optical waveguide 3 so that the incident end face 7 and the output end face 8 are exposed. The lengthwise direction A of the optical waveguide 3 is inclined at a predetermined angle with respect to the optical axis 11 of light 6 in a predetermined plane including the lengthwise direction A of the optical waveguide 3 and the optical axis 11 of the light 6. The predetermined angle is preset so that the light 6 propagates through the optical waveguide 3 while being totally reflected at the boundary surface B between the optical waveguide 3 and the exterior part 4.SELECTED DRAWING: Figure 1

ASAHI TAKEHIRO
RYOKI NAOYA
NISHIKAWA YUKIO
OKAYAMA YOSHIHISA

JP2021114488A

January 20, 2023

July 09, 2021

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PANASONIC IP MAN CORP

G02F1/377; G02B6/12; G02B6/42

Michiko Matsutani
Hiroshi Okabe
Hidetaka Okabe
Hidetoshi Kitade

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