Abstract: Pacing goggles are provided which include a pacing device that conveys a rhythmic or periodic visual signal to the swimmer. The intermittent signal provides a metronome-like reference for use in pacing the swimmer's strokes. The frequency of the intermittent signal can be adjusted to correspond with the swimmer's preferred pace. In a preferred embodiment, the pacing device is contained in a waterproof hydrodynamic housing that is mounted to the corner contour of the eye shield of swim goggles.

Abstract: A vehicular distance measuring system includes a distance measuring device for detecting a distance to an object and, in response, supplying a distance signal. An ultrasonic transducer mounted in a vehicle taillight or running light assembly is used to ultrasonically detect and range objects in back of, and along side a vehicle in which the system is installed. A display includes (i) a vehicular mirror having an image reflecting surface with a transparent window portion located therein, and (ii) a digital display mounted on the vehicular mirror and viewable through the window portion. The digital display is responsive to the distance signal for displaying the detected distance to the object. The distance measuring device includes a comparator for comparing the distance to the object with a predetermined threshold distance and, in response, supplying a display unblank signal.