MEASUREMENT DEVICE AND MEASUREMENT APPARATUS

摘要

PROBLEM TO BE SOLVED: To prevent the reproducibility of measurement from deteriorating.SOLUTION: A shielding unit (40) including a contact surface (41) at a front end thereof can be tilted with respect to an irradiating direction of excitation light from a bundle fiber 3. A contact switch (50) detects that the amount of displacement of the contact surface (41) with respect to a living body is greater than or equal to a predetermined value and that the inclination of the contact surface (41) to the irradiating direction in a normal direction is within a predetermined range.