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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2019/163769
Kind Code:
The purpose of the present disclosure is to provide a load control device which is capable of reducing brightness unevenness in the surface of a light receiving cover. A load control device (1) according to the present disclosure is provided with: a main body part (2) which has a control unit that controls a load; and a transmitter (3) which is able to be attached to and detached from the main body part (2). The main body part (2) is provided with a light receiving part (62), a light receiving cover (54), and a stage part (53). The light receiving part (62) receives an optical signal that is transmitted from the transmitter (3). The light receiving cover (54) covers the light receiving part (62). The light receiving cover (54) is placed on the stage part (53). The light receiving cover (54) has a lens in a stage part (53)-side portion. The stage part (53) has a light-blocking part (531) in a part of a facing portion (530) that faces the lens. The light-blocking part (531) has a lower light transmittance in comparison to the other parts of the facing portion (530) that faces the lens, said other parts being not provided with the light-blocking part (531).

WU, Shangju
LIU, Wentsai
MIYAKE, Tomohiro
Application Number:
Publication Date:
August 29, 2019
Filing Date:
February 19, 2019
Export Citation:
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PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. (1-61, Shiromi 2-chome Chuo-ku, Osaka-sh, Osaka 07, 〒5406207, JP)
International Classes:
H01H9/02; F21V23/04; H01H21/00; H05B37/02
Foreign References:
Attorney, Agent or Firm:
HOKUTO PATENT ATTORNEYS OFFICE (Umeda Square Bldg, 12-17 Umeda 1-chome, Kita-ku, Osaka-sh, Osaka 01, 〒5300001, JP)
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