Patent ID: 9664624
Date: 2017-05-30
CPC Classifications: G01N,G06T

Claim:
1. A device for testing an application state of a plurality of strips of fiber reinforced plastic tape affixed in rows on a surface of a structure, the device comprising: an illumination component including a plurality of irradiation units configured to emit observation-use illuminating light beams toward a test region of the fiber reinforced plastic tape; an observation component configured to observe reflected light from the test region; a testing component configured to test the application state of the fiber reinforced plastic tape based on images observed by the observation component; a continuous observation controller configured to change an illumination direction and observe the images continuously while relatively moving an observation site of the observation component with respect to the structure; and a grouping test function configured to group and test the images that are continuously observed having the same illumination direction of the observation-use illuminating light, the plurality of irradiation units that light simultaneously and are disposed such that a pair of the observation-use illuminating light beams are emitted from directions that are mutually symmetrical with respect to a normal line of the test region, and so as to emit the observation-use illuminating light beams in at least two directions toward the test region, the illumination component including an illumination direction change component that changes the directions of the pair of observation-use illuminating light beams emitted from the illumination component about the normal line.