ULTRAVIOLET IRRADIATION APPARATUS AND ULTRAVIOLET IRRADIATION METHOD

Title:

ULTRAVIOLET IRRADIATION APPARATUS AND ULTRAVIOLET IRRADIATION METHOD

Document Type and Number:

WIPO Patent Application WO/2022/009897

Kind Code:

A1

Abstract:

Provided is an ultraviolet irradiation apparatus, wherein exposure to ultraviolet rays is more reliably prevented. The present invention comprises: a UVC-LED (12a) that irradiates ultraviolet rays; a biological sensor (11) disposed in the periphery of the UVC-LED (12a) such that the irradiation area of the UVC-LED (12a) and the sensing area overlap with each other to detect the presence of a person; a control circuit (1a) for controlling the UVC-LED (12a) on the basis of output signals of the biological sensor (11); and a light-shielding cover (3b) that blocks a part of the ultraviolet ray emitted from the UVC-LED (12a). The control circuit (1a) controls the driving of the UVC-LED (12a) by causing the same to stop the ultraviolet ray emission when the biological sensor (11) detects the presence of a person, and to resume the ultraviolet ray emission when the biological sensor (11) switches from the state in which the presence of a person is being detected to the state in which the presence of a person is not being detected.

Inventors:

KODAMA ATSUSHI (JP)
YABUKI NAOTO (JP)
OTSUKI SHUNYA (JP)

Application Number:

PCT/JP2021/025506

Publication Date:

January 13, 2022

Filing Date:

July 06, 2021

Export Citation:

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Assignee:

ASAHI CHEMICAL IND (JP)

International Classes:

A61L2/10; A61L2/24; H01L33/00

Foreign References:

JP2017094090A	2017-06-01
US20170296686A1	2017-10-19
CN110585457A	2019-12-20

Other References: