ADAPTER DEVICE, PORTABLE TERMINAL DEVICE, PATTERN MATCHING LOCK SYSTEM, AND LOCK CONTROL METHOD OF PATTERN MATCHING LOCK SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide an adapter device for using a portable terminal device with a camera for truth or falsehood determination of a random pattern on the surface of an object. SOLUTION: The adapter device 2 has: an aperture part 200 to be mounted on the camera; a shield member 202 for shielding circumferential light; and a light source 204 provided in the inside of the shield member and irradiating the object photographed through the opening part with light. The adapter device 2 can arrange an optical condition suitable for photographing of the random pattern by only being mounted on the portable device by the composition. A user mounts the adapter device 2 on the terminal device 4, and photographs a PFP registering part 8 of a pattern matching key 6. An acquired image of the PFP registering part 8 is photographed in the same optical condition by a shade of irregularity of the random pattern of the PFP registering part 8. COPYRIGHT: (C)2008,JPO&INPIT