Title: Method of measuring ultraviolet radiation and ultraviolet measuring device
Application Number: 200510001601 Application Date: 2005.01.24
Publication Number: 1690727 Publication Date: 2005.11.02
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01T1/16
Applicant(s) Name: Fuji Xerox Co., Ltd. Address:
Inventor(s) Name: Shigeru Yagi
Attorney & Agent: li hui
Abstract:
    An ultraviolet measuring method using an ultraviolet sensitive element, comprising: measuring an ultraviolet intensity with the ultraviolet sensitive element at a sun altitude; and determining an integrated ultraviolet intensity within a specific ultraviolet wavelength range or a response index by converting the measured intensity to the integrated ultraviolet intensity within the specific ultraviolet range or the response index by using a conversion factor corresponding to the sun altitude, wherein the conversion factor is a function of at least sun altitude. An ultraviolet measuring method, using an ultraviolet sensitive element with spectral sensitivity to a specific wavelength range, comprising: measuring an ultraviolet intensity with the ultraviolet sensitive element; and correcting the measured ultraviolet intensity according to sun altitude information for an arbitrary point in time so as to predict an ultraviolet intensity at the point in time.
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