Title:
ULTRAVIOLET LED IRRADIATION DEVICE
Document Type and Number:
Japanese Patent JP2023093165
Kind Code:
A
Abstract:
To make ultraviolet irradiation from an ultraviolet irradiation device uniform, the device being made of a plurality of ultraviolet LEDs.SOLUTION: A plurality of ultraviolet LEDs 3 is each provided with an optical sensor 4, a temperature sensor 5, and a light adjusting circuit, and optical amounts of the ultraviolet LEDs 3 are individually adjusted. An ultraviolet LED irradiation device 1 further includes a visible light cut-filter 6. The optical sensor 4 is out of a directivity angle near its corresponding ultraviolet LED 3 and has sufficient sensitivity for visual light. The temperature sensor 5 adjusts the optical sensor 4 by correcting a temperature.SELECTED DRAWING: Figure 3
Inventors:
MATSUMOTO KENJI
Application Number:
JP2021208628A
Publication Date:
July 04, 2023
Filing Date:
December 22, 2021
Export Citation:
Assignee:
MARKTEC CORP
International Classes:
G01N21/91; G01J1/00; H01L33/00
Attorney, Agent or Firm:
Satoshi Watanabe