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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.
Since it was the top-line Oldsmobile, the series had the most technologically advanced items available, such as the Hydramatic automatic transmission, the Autronic Eye, an automatic headlight dimmer, and Twilight Sentinel (a feature that automatically turned the headlights on and off via a light sensor and a delay timer, as controlled by the ...
A thyristor dimmer rack An electrical schematic for a typical SCR-based light dimmer Solid-state , or semiconductor , dimmers were introduced to solve some of these problems. Semiconductor dimmers switch on at an adjustable time (phase angle) after the start of each alternating-current half-cycle, thereby altering the voltage waveform applied ...
General Motors introduced the first automatic headlight dimmer called the "Autronic Eye" in 1952 on their Cadillac, Buick, and Oldsmobile models; the feature was offered in other GM vehicles starting in 1953. [148] [149] The system's phototube and associated circuitry were housed in a gunsight-like tube atop the dashboard. An amplifier module ...
For Calais – automatic light-sensing headlights, personalised key system (recognising two driver's transmission, climate, audio, trip computer and overspeed setting), dual zone climate control and eight way powered front seats with lumbar; For Calais, S and SS a leather wrapped steering wheel optional on all other models
In the paper "Energy savings due to occupancy sensors and personal controls: a pilot field study", Galasiu, A.D. and Newsham, G.R have confirmed that automatic lighting systems including occupancy sensors and individual (personal) controls are suitable for open-plan office environments and can save a significant amount of energy (about 32% ...
3rd flasher indicator light K3, K4 L indicator lights left HL, L54, VL R indicator lights right HR, R54, VR L54 lights out, left SBL R54 lights out, right SBR AC generator; 51 DC at rectifiers: 51e as 51, with choke coil 59 AC out, rectifier in, light switch 51, 51-, 51a 59a charge, rotor out 59 64 generator control light Generator, voltage ...
Gentex Corporation is an American electronics and technology company that develops, designs and manufactures automatic-dimming rear-view mirrors, camera-based driver assistance systems, and other equipment for the global automotive industry. [3] They produce dimmable aircraft windows for the commercial, business and general aviation markets.