Title:
LIGHT STABILITY TESTINTG DEVICE
Document Type and Number:
WIPO Patent Application WO/2003/002983
Kind Code:
A1
Abstract:
A light stability testing device for conducting an accurate light stability test that permits an accurate ultraviolet irradiation and an accurate visible light irradiation, the device comprising an optical sensor having a visible light measuring sensor (5) for measuring the dose of visible light, and a ultraviolet measuring sensor (6) for measuring the dose of ultraviolet ray, an optical system having a total light regulating means (331) for regulating the absolute quantity of light emitted from a light source and a ultraviolet ray regulating means (335) for regulating the dose of ultraviolet ray in light regulated by the total light regulating means, and a control unit for controlling a total light control unit that controls the total light regulating means (331) by a signal from a visible light measuring sensor (5), and the ultraviolet ray regulating means (335) by a signal from the ultraviolet measuring sensor (6).
Inventors:
TSUKUDA HIROSHI (JP)
Application Number:
PCT/JP2002/004841
Publication Date:
January 09, 2003
Filing Date:
May 20, 2002
Export Citation:
Assignee:
NAGANO SCIENCE EQUIPMENT MFG C (JP)
TSUKUDA HIROSHI (JP)
TSUKUDA HIROSHI (JP)
International Classes:
G01N17/00; (IPC1-7): G01N17/00
Foreign References:
| JPH0572116A | 1993-03-23 | |||
| JPH11132938A | 1999-05-21 | |||
| JPS59218407A | 1984-12-08 | |||
| JPS63157647U | 1988-10-17 | |||
| JPS57204424A | 1982-12-15 |
Other References:
See also references of EP 1400799A4
Attorney, Agent or Firm:
Ueda, Ikuhiro (Yushima Bunkyo-ku, Tokyo, JP)
Download PDF: