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2. Automotive night vision - Wikipedia

   en.wikipedia.org/wiki/Automotive_night_vision

   2011: Night View Assist Plus with Spotlight Function premiere: the Mercedes-Benz CL-Class (C216) became the first series production car with night vision-guided pedestrian spotlighting (HID version) [11] can flash at any pedestrians it detects in order to warn both the driver and the pedestrians. The flashing light is directed in such a way ...

3. Daytime running lamp - Wikipedia

   en.wikipedia.org/wiki/Daytime_running_lamp

   Full-voltage vs. parking light headlamp on European-market Volkswagen, 2007. Depending on prevailing regulations and equipment, vehicles may implement the daytime-running light function by functionally turning on specific lamps, by operating low-beam headlamps or fog lamps at full or reduced intensity, by operating high-beam headlamps at reduced intensity, or by steady-burning operation of the ...

4. Planetarium projector - Wikipedia

   en.wikipedia.org/wiki/Planetarium_projector

   A planetarium projector, also known as a star projector, is a device used to project images of celestial objects onto the dome in a planetarium. Modern planetarium projectors were first designed and built by the Carl Zeiss Jena company in Germany between 1923 and 1925, and have since grown more complex.

5. Halo headlights - Wikipedia

   en.wikipedia.org/wiki/Halo_headlights

   With an increasing use of less cumbersome projector lenses in the 2000s, automakers could implement innovative headlamp designs, including halo rings. BMW 5 Series. Halo headlights were originally designed and first used by BMW on the 2001 BMW 5 Series (E39), a luxury sports sedan which soon entered Car and Driver's "10Best list".

6. Skyglow - Wikipedia

   en.wikipedia.org/wiki/Skyglow

   Skyglow (or sky glow) is the diffuse luminance of the night sky, apart from discrete light sources such as the Moon and visible individual stars. It is a commonly noticed aspect of light pollution . While usually referring to luminance arising from artificial lighting , skyglow may also involve any scattered light seen at night, including ...

7. High-intensity discharge lamp - Wikipedia

   en.wikipedia.org/wiki/High-intensity_discharge_lamp

   Diagram of a high-pressure sodium lamp A high-pressure sodium lamp, Philips Master SDW-T 100W. Various types of chemistry are used in the arc tubes of HID lamps, depending on the desired characteristics of light intensity, correlated color temperature, color rendering index (CRI), energy efficiency, and lifespan.