| 摘要 |
PROBLEM TO BE SOLVED: To expand a light application range of a probe for a photoacoustic measuring instrument.SOLUTION: A probe for a photoacoustic measuring instrument comprises a light sending part for applying light L to a test object, and a photoacoustic wave detection part 52 for detecting a photoacoustic wave emitted from a portion, which has received the application of the light L, of the test object. In this configuration, the light sending part is provided with light propagation means 51 such as an optical fiber for propagating light from a light source, and a light transmission member 55. The light transmission member 55 is formed to have an inner peripheral surface 55a shaped to be a curved concave surface, and an outer peripheral surface 55b shaped to be a curved convex surface with a larger curvature radius than the curvature radius of the inner peripheral surface 55a, the light transmission member 55 being disposed such that the light L emitted from the light propagation means 51 enters the inner peripheral surface 55a. |
