Invention Grant
- Patent Title: Light emitting device and production method therefor
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Application No.: US16534620Application Date: 2019-08-07
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Publication No.: US10555396B1Publication Date: 2020-02-04
- Inventor: Yasutsugu Sugiura , Taro Isogai , Kazuki Yabashi
- Applicant: TOYODA GOSEI CO., LTD.
- Applicant Address: JP Kiyosu-Shi, Aichi-Ken
- Assignee: TOYODA GOSEI CO., LTD.
- Current Assignee: TOYODA GOSEI CO., LTD.
- Current Assignee Address: JP Kiyosu-Shi, Aichi-Ken
- Agency: McGinn IP Law Group, PLLC
- Priority: JP2018-180263 20180926; JP2018-181805 20180927
- Main IPC: H05B33/08
- IPC: H05B33/08 ; B60Q3/16 ; B60Q3/80 ; B60Q3/217

Abstract:
A light emitting device, which includes a plurality of light emitting elements each having a different chromaticity of emission light, to emit mixed light produced by mixing the respective emission light of the plurality of light emitting elements together, includes a receiving section to obtain command information on the mixed light, a driving section to perform a PWM drive on the plurality of light emitting elements on the basis of the command information, and a storing section to store correction information to be set on the basis of measurement results on the respective emission light of the plurality of light emitting elements. The driving section is being configured in such a manner as to, on the basis of the correction information, correct a duty ratio in the PWM drive to be set in accordance with the command information, and perform the PWM drive on the plurality of light emitting elements.
Information query