Radio age research, manufacturing, communications, broadcasting, television (1941)

Record Details:

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Night Driving Made Safer Electronic ''Eye'' J_/YE-BLINDING headlight glare, bane of night drivers and one of the hazards of after-dark travel, has suc- cumbed to the wizardry of a small tube developed by RCA. The tube—a multiplier phototube—is the essen- tial component in the "Autronic Eye", an automatic headlight beam control developed by the Guide Lamp Division of General Motors Corporation. Mounted behind the windshield of an automobile, the "Eye" sees what the driver sees and electronically selects the safest headlight beam to suit approaching road conditions. The "Eye" relieves the driver from the responsibility of constantly operating the conventional foot-switch to dim when approaching other cars or entering well-lighted or dark streets and highways. The phototube is extremely sensitive to light. When it picks up light from approaching traffic, it triggers a control circuit which dims the headlights of the car on which it is installed, and keeps them dim until the other vehicle or vehicles have passed. Similarly, it dims the headlights when the car enters well-lighted streets, and brightens them when the car enters darkened avenues. Autronic Eye, containing small light-sensitive tube (in- sert), electronic relay and control circuits, automatically depresses bright beam when one or more cars approach and raises beam when traffic has passed. The device is available on several 1952 model auto- mobiles and in due time may become standard equip- ment on all vehicles because of the greater highway safety and drivins; comfort it affords. HOW THE AUTRONIC-EYE WORKS 1, Autronic-Eye keeps headlights bright as long as approaching headlights are beyond the glaring range. 2. Eye automatically shifts headlights from upper to lower beam when oncoming car approaches. 3. Maintains lower beam—even though oncoming lights ore depressed—un- til nearest car and others behind it have passed. Automatically returns headlights to upper beam when all oncoming cars have passed. 20 rad;o age