| 摘要 |
PROBLEM TO BE SOLVED: To restrain measurement variation in the respective measuring points due to passage of time by making uniform the light quantity distribution of light emitted from a light source. SOLUTION: This multi-point optical measuring apparatus is provided with a light emitting means for inputting light emitted from the light source 1 from an incident end 2a of an optical fiber 2 and diverging and outputting the same to plural outgoing ends, a selecting device 3 for selecting the light diverged by the light emitting means between plural light transmitted at each of multi- point of a functional film F and light passed as it is without passing through the functional film F depending on the time, a detector 4 for converting light in order output from the selecting device 3 to an electric signal, and a control part 5 for performing designated operation according to the electric signal converted by the detector 4. A diffusion filter 13 for smoothing the light quantity distribution of the light source 1 is provided between the light source 1 in the light emitting means and the incident end 2a of the optical fiber 2.
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