DETECTION APPARATUS FOR COATING FACE

• Main Author: FUKUI TAKAHIRO
• Format: Patent
• Language: English
• Published: 21.04.2000
• Edition: 7
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

PROBLEM TO BE SOLVED: To obtain a detection apparatus which prevents a visual field from being changed due to the distance between a face to be detected and a camera and which evaluates the finished state, especially the expulsion and surface flash feeling, of a coating face. SOLUTION: In a photographing part 30, a light source 36 by which a face 14, to be inspected, on a vehicle is irradiated with striped-pattern light with repeating light and shade is installed, and a semitransparent mirror 38 which reflects projected light 40 from the light source 38 so as to be projected on the face 14 to be inspected and which transmits reflected light 42 from the face 14 to be inspected is installed. In addition, an optical means which is installed between a camera 18 and the face 14 to be inspected and by which only beams of light 42' parallel to the optical axis 44 of the camera 18 out of beams of reflected light 42 are image-formed is provided. The optical means is provided with a telecentric lens by which the beams of light parallel to the optical axis 44 out of the beams of reflected light from the face 14 to be inspected are image-formed. Thereby, even when the distance between the camera 18 and the face 14 to be inspected is changed a little, an expulsion and surface flash feeling can be measured stably.