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It also made aiming the headlight beams simpler and eliminated non-standard bulbs and lamps. [17] The Tucker 48 included a defining "cyclops-eye" feature: a third center-mounted headlight connected to the car's steering mechanism. [18] It only illuminated if the steering was moved more than ten degrees off center and the high beams were turned ...
The development of automatic headlight systems at General Motors can be traced back to the early 1950s. In 1952, GM introduced the Autronic Eye, an automatic headlight dimming system, for Oldsmobile and Cadillac models. [2] Twilight Sentinel, which expanded on the concept of automatic lighting control, was introduced in the mid-1960s.
This small device allowed the dimmer to be installed in a standard electrical wall box while saving energy. [2] [3] In 1966, Eugene Alessio patented a light bulb socket adapter for adjusting a light level on a single light bulb using a triac. To house this device, he decided on a 2-inch round device with one end capable of being screwed into a ...
In electrical wiring, a light switch is a switch most commonly used to operate electric lights, permanently connected equipment, or electrical outlets. Portable lamps such as table lamps may have a light switch mounted on the socket, base, or in-line with the cord.
Headlight flashing is the act of either briefly switching on the headlights of a car, or of momentarily switching between a headlight's high beams and low beams, in an effort to communicate with another driver or drivers. The signal is sometimes referred to in car manufacturers' manuals as an optical horn, since it draws the attention of other ...
Compared to a rheostat-based circuit, the use of a thyristor greatly increases efficiency, as far less waste heat is generated. Dimming lights with a solid state dimmer also reduces total power draw, unlike rheostat dimmers. Spira's design (and most modern dimmers) rely on the use of AC power, and on the characteristics of incandescent lights.