| 摘要 |
PROBLEM TO BE SOLVED: To make a scanning area of measuring light controllable in an imager irradiating a plurality of measuring beams of light on a subject to be examined.SOLUTION: The imager has a changing section (position adjuster 115 of fiber ends and a scanning section 103 to be scanned with a plurality of measuring beams of light) changing the center-to-center distance of the scanning area or the size of the scanning area in accordance with the size of an overlapping area as an area in which the scanning areas of a plurality of measuring bemas of light overlap each other. |
