Method and apparatus for evaluating ultraviolet radiation protection effect, and recording medium

摘要

An evaluation method for evaluating an ultraviolet radiation protection effect in a measurement sample applied on an application member includes the first step of switching to a first filter for measuring a spectral transmittance before photodeterioration by emission of light from a light source, and measuring the spectral transmittance, the second step of switching to a second filter for ultraviolet irradiation and causing the photodeterioration by the emission of the light after the measurement by the first step, and thereafter, switching to the first filter and measuring the spectral transmittance, and the third step of evaluating the ultraviolet radiation protection effect based on a change over time in the spectral transmittance obtained by the second step. Each of the first and second filters includes multiple light source filters. The first filter includes ND filters switchable in accordance with the light amount of the light source in the light source filters.

主权项

1. An evaluation method for evaluating an ultraviolet radiation protection effect in a measurement sample applied on an application object member, comprising:
a first step of switching to a first filter for measuring a spectral transmittance before photodeterioration in a predetermined wavelength range by emission of light including ultraviolet radiation from a light source according to a preset light emission condition, and measuring the spectral transmittance; a second step of switching to a second filter for ultraviolet irradiation and causing the photodeterioration of the application object member for a predetermined time by the emission of the light from the light source after the measurement by the first step, and thereafter, switching to the first filter and measuring the spectral transmittance; and a third step of evaluating the ultraviolet radiation protection effect based on a change over time in the spectral transmittance obtained by repeating the second step over a predetermined time or a predetermined number of times, wherein each of the first filter and the second filter includes a plurality of light source filters corresponding thereto, and the first filter includes ND filters switchable in accordance with an amount of light of the light source in said plurality of light source filters.