Patent ID: 7388473

Claim:
A smart entry system for a vehicle comprising: communication means for radio communication with a portable device carried by a user of a vehicle; first validation means for validating the portable device by comparing identification information of the portable device received by the communication means with pre-stored first registration information indicative of a specified portable device; biometric information detection means having a light inlet opening for detecting biometric information of the user based on light including the biometric information and passing through the light inlet opening; second validation means for validating the user by comparing the biometric information detected by the detection means with pre-stored second registration information indicative of a specified user; vehicle control means for executing a predetermined vehicle control when both the portable device and the user are validated by the first validation means and the second validation means, respectively; and exposure control means for exposing the light inlet opening to the light thereby to render the detection means operable, only when the portable device is validated by the first validation means, wherein: the exposure control means includes a shutter provided slidably along a surface of the light inlet opening; the shutter is moved to slide only after the portable device is validated by the first validation means; and the shutter includes a cleaning member for cleaning the surface of the light inlet opening when the shutter slides.