APPARATUS FOR MEASURING REFLECTING CHARACTERISTICS

PROBLEM TO BE SOLVED: To shorten a measuring time by switching a measuring mode. SOLUTION: When a mounting detecting switch 74 is closed, a CPU 55 judges that a spectrocolorimeter 1 is mounted at a scanner 10. A continuously measuring mode is set. Before a light source 11 is lit, a photodetection signal from a detector 40 at a put-out time is stored in a ROM 58 as an offset value. Thus, while the source 11 remains lighting as it is, measurements of a sample to be measured at a plurality of measuring positions are continuously conducted. Meanwhile, when the switch 74 is opened, the CPU 55 judges that the spectrocolorimeter 1 stands alone. And, an intermittently measuring mode in which lighting and putting-out of the source 11 are repeated at respective measurements is set.