Title:
照明器具
Document Type and Number:
Japanese Patent JP7124495
Kind Code:
B2
Abstract:
To provide a lighting fixture capable of making optical output constant or nearly constant by suppressing the effects of external light.SOLUTION: A lighting fixture includes: a lamp holder; a plurality of LEDs stored in the lamp holder; an illuminance sensor stored in the lamp holder for detecting illuminance in the lamp holder; and a lighting circuit which compares the detection result of the illuminance sensor and the target value of illuminance to be detected by the illumination sensor and supplies current to the LEDs such that the detection result of the illumination sensor approaches the target value.SELECTED DRAWING: Figure 2
Inventors:
Kentaro Eguchi
今▲吉▼ ちづる
Kengo Shinoda
今▲吉▼ ちづる
Kengo Shinoda
Application Number:
JP2018127319A
Publication Date:
August 24, 2022
Filing Date:
July 04, 2018
Export Citation:
Assignee:
Mitsubishi Electric Corporation
Mitsubishi Electric Lighting Co., Ltd.
Mitsubishi Electric Lighting Co., Ltd.
International Classes:
H05B47/11; F21S2/00; F21S9/02; F21V23/00
Domestic Patent References:
| JP2017157390A | ||||
| JP2015158997A | ||||
| JP2007214053A | ||||
| JP2015103336A | ||||
| JP2015041571A |
Attorney, Agent or Firm:
Takada Mamoru
Hideki Takahashi
Kuno Yoshimi
Hideki Takahashi
Kuno Yoshimi
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