Abstract: A vehicle exterior imaging apparatus includes a photo-receiving element, a transparent member that is disposed on a front face of the photo-receiving element and introduces light into it, and a movable body movable between a covering position for covering part or all of a front face of the transparent member with the movable body being spaced apart from the transparent member, and an evacuated position evacuating from the front face of the transparent member with respect to the covering position. The movable body has a higher surface wettability in a portion opposing to the transparent member at the covering position than the one of the front face of the transparent member. The movable body evacuates water adhered to the surface of the transparent member in a moving direction of the movable body during the movement of the movable body from the covering position to the evacuated position.

Abstract: A vehicle exterior imaging apparatus includes a photo-receiving element, a transparent member that is disposed on a front face of the photo-receiving element and introduces light into it, and a movable body movable between a covering position for covering part or all of a front face of the transparent member with the movable body being spaced apart from the transparent member, and an evacuated position evacuating from the front face of the transparent member with respect to the covering position. The movable body has a higher surface wettability in a portion opposing to the transparent member at the covering position than the one of the front face of the transparent member. The movable body evacuates water adhered to the surface of the transparent member in a moving direction of the movable body during the movement of the movable body from the covering position to the evacuated position.

Abstract: A dither clock generating section 1 generates a dither clock. A transmission pulse generating section 2a generates a transmission pulse emitted to the outside from a transmitting antenna 2c on the basis of the dither clock. A sample hold section 6 samples a reception pulse, received by a receiving antenna 3a, on the basis of a sample pulse obtained by time sweeping of the changing timing of the dither clock, so as to produce a long-period reception pulse that is obtained by expanding the reception pulse on a time axis.

Abstract: A dither clock generating section 1 generates a dither clock. A transmission pulse generating section 2a generates a transmission pulse emitted to the outside from a transmitting antenna 2c on the basis of the dither clock. A sample hold section 6 samples a reception pulse, received by a receiving antenna 3a, on the basis of a sample pulse obtained by time sweeping of the changing timing of the dither clock, so as to produce a long-period reception pulse that is obtained by expanding the reception pulse on a time axis.

Abstract: A transmission side is provided with a power control signal generation section 2 for generating a power control signal whose amplitude is variable in order to equalize a signal intensity of a received signal, and an amplification section 4 for controlling transmission power of a transmission signal of a pulse train, by controlling a gain according to the amplitude of the power control signal.