| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical scanning probe device suited for obtaining the image information of a desired part to be inspected, while reducing the influence of light reflected by a light transmitting member. SOLUTION: At the leading end of a probe, a condensing lens 26 held against the leading end of a retaining member 25 inside an optical frame 18 causes illuminating light emitted from the leading end of an optical fiber to be transmitted through a light-transmitting leading end cover 20 positioned in front of it, the light is focused in the form of a spot at the position of a focus 34 inside and near the surface of a living tissue 35, against which the front surface 20a of the leading end cover 20 is pressed. When the light reflected from the living tissue 35 near the focus 34 is received via a reverse optical path, the distance L37 between the front surface 20a and the focus 34 is held within a predetermined range whereby the amount of the reflected light received by the cover 20 is made greater than the amount of the light received from near the focus 34 on the living tissue 35 to provide image information with good S/N.
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