| 摘要 |
PROBLEM TO BE SOLVED: To provide an in-cylinder face photographing apparatus which can obtain photographic images of proper quality without seams. SOLUTION: An imaging unit 8, having an imaging element used as a one-dimensional line sensor, is disposed looking in the outward direction of a subject to be inspected, a narrow width reflecting mirror 12 for refractively projecting the longitudinal fine region of the inner surface of the subject to be inspected to the line sensor is disposed obliquely on a flat surface, including the central axis of the subject, in such a manner that corners of upper and lower ends of the subject approach to front and rear inner surfaces of the subject; and the mirror 12 for illuminating the fine region is disposed near, at equal distance to the inner surface of the subject. The mirror 12, for continuously inputting a subject image to the line sensor, and a narrow width illumination lamp 13 are mounted on a drive unit 5 for making the mirror 12 and the lamp 13 rotate the mirror 12 and the lamp 13 at 360°, to photograph the subject. COPYRIGHT: (C)2004,JPO
|
