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2. Nightlight - Wikipedia

   en.wikipedia.org/wiki/Nightlight

   A nightlight is a small light fixture, usually electrical, placed for comfort or convenience in dark areas or areas that may become dark at certain times, such as at night or during an emergency. Small long-burning candles serving a similar function are referred to as "tealights".

3. Night-vision device - Wikipedia

   en.wikipedia.org/wiki/Night-vision_device

   A night-vision device (NVD), also known as a night optical/observation device (NOD) or night-vision goggle (NVG), is an optoelectronic device that allows visualization of images in low levels of light, improving the user's night vision.

4. Ambient light sensor - Wikipedia

   en.wikipedia.org/wiki/Ambient_light_sensor

   The ambient light sensor of a Google Pixel 4a smartphone under a microscope. An ambient light sensor is a component in smartphones, notebooks, other mobile devices, automotive displays and LCD TVs. It is a photodetector that is used to sense the amount of ambient light present, and appropriately dim the device's screen to match it.

5. Night vision - Wikipedia

   en.wikipedia.org/wiki/Night_vision

   Night vision is the ability to see in low-light conditions, either naturally with scotopic vision or through a night-vision device. Night vision requires both sufficient spectral range and sufficient intensity range .

6. Automotive night vision - Wikipedia

   en.wikipedia.org/wiki/Automotive_night_vision

   In 2009, Lexus introduced Night View on the LS, but only in Japan. In 2012 Lexus introduced Night View worldwide, on LS [19] and GS. The Night View system combines a windshield mounted near infra-red camera and near infra-red projectors within the headlamps with a Night View ECU to display an image of the road ahead on center console display ...

7. Security lighting - Wikipedia

   en.wikipedia.org/wiki/Security_lighting

   Security lighting to prevent intrusions may be counter-productive. Turning off lights halved the number of thefts and burglary in Övertorneå Sweden. [2] [3] A test in West Sussex UK showed that adding all-night lighting in some areas made people there feel safer, although crime rates increased 55% in those areas compared to control areas and to the county as a whole.