Invention Application
- Patent Title: LIGHT-EMITTING DEVICE
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Application No.: US18659522Application Date: 2024-05-09
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Publication No.: US20240395982A1Publication Date: 2024-11-28
- Inventor: Yusuke HAYASHI , Satoshi SHICHIJO , Hiroki FUKUTA
- Applicant: Nichia Corporation
- Applicant Address: JP Anan-shi
- Assignee: Nichia Corporation
- Current Assignee: Nichia Corporation
- Current Assignee Address: JP Anan-shi
- Priority: JP2023-086221 20230525
- Main IPC: H01L33/50
- IPC: H01L33/50 ; C09K11/77

Abstract:
A light-emitting device includes a light-emitting element configured to emit a first light, a wavelength conversion member disposed on an upper surface of the light-emitting element and configured to emit, by excitation by the first light, a second light having a peak wavelength longer than a peak wavelength of the first light, and a covering member disposed around the light-emitting element and the wavelength conversion member and containing a light-reflective material and a phosphor. The phosphor is configured to emit, by excitation by the first light, a third light having a peak wavelength longer than the peak wavelength of the second light. The content of the phosphor above the upper surface of the light-emitting element is less than the content of the phosphor below the upper surface of the light-emitting element.
Information query
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