METHOD FOR DETECTING FLAW AND DENT ON SURFACE OF METALLIC O-RING SEAL USING CURVED SURFACE DETECTING ILLUMINATION

PROBLEM TO BE SOLVED: To enable a specular reflection image of an O-ring outer wall seal portion (ring-like outer-inclining portion) to be applied to a high-speed inspection for flaws, dents, and cracks by obtaining the image. SOLUTION: The O-ring 7 is irradiated directly with the illumination lumin...

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Bibliographische Detailangaben
1. Verfasser:	NAKAI KOSHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LIGHTING MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS MECHANICAL ENGINEERING OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR TESTING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To enable a specular reflection image of an O-ring outer wall seal portion (ring-like outer-inclining portion) to be applied to a high-speed inspection for flaws, dents, and cracks by obtaining the image. SOLUTION: The O-ring 7 is irradiated directly with the illumination luminous flux from LED light sources 1 at a position arc-like lined with respect to the O-ring 7 and also via a cylindrical mirror 5 on the O-ring 7, and the specularly reflected light from the outer wall seal of the O-ring 7 irradiated with the illumination luminous flux forms a specularly reflected image via the cylindrical mirror 5. COPYRIGHT: (C)2011,JPO&INPIT