Invention Grant
- Patent Title: Light emitting device
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Application No.: US15831392Application Date: 2017-12-05
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Publication No.: US10243124B2Publication Date: 2019-03-26
- Inventor: Taiki Yuasa , Takeshi Kususe
- Applicant: NICHIA CORPORATION
- Applicant Address: JP Anan-shi
- Assignee: NICHIA CORPORATION
- Current Assignee: NICHIA CORPORATION
- Current Assignee Address: JP Anan-shi
- Agency: Mori & Ward, LLP
- Priority: JP2016-250611 20161226; JP2017-094746 20170511
- Main IPC: H01L33/60
- IPC: H01L33/60 ; H01L33/46 ; H01L33/50 ; H01L33/62 ; H01L33/56 ; H01L33/48

Abstract:
A light emitting device includes a light emitting element having a light emitting surface from which the light emitting element is configured to emit a first light having a first peak emission wavelength in a wavelength range of 380 nm or longer and 430 nm or shorter. A light transform layer is disposed on the light emitting surface of the light emitting element to transform the first light to a second light having a second peak wavelength longer than the first peak wavelength. A reflecting film is provided on the light transform layer to reflect the first light and to transmit the second light. The reflecting film has a reflectivity of 40% or more in a reflection spectrum of the reflecting film with respect to a light having a wavelength of 380 nm or longer and 430 nm or shorter and an angle of incidence from 0° to 85°.
Public/Granted literature
- US20180182941A1 LIGHT EMITTING DEVICE Public/Granted day:2018-06-28
Information query
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