| 摘要 |
PROBLEM TO BE SOLVED: To obtain a face pressure detector having an inexpensive pressure detecting section which can be maintained easily while prolonging the service life. SOLUTION: A pressure detecting section 1 comprises a plurality of elastic balls of identical diameter made of the same material or a plate having ball-like protrusions of identical diameter made of an elastic material. When an object to be measured, e.g. a foot 7, is placed on the pressure detecting section 1 through a light shielding sheet 3, a compressed surface appears at the part touching a glass 2 because of the elasticity of the ball. Difference in the size of the compressed surface between respective balls is picked up as an image of an illuminator 4 having different reflectance by means of an image pick-up unit 5.
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