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A day and night camera is a security camera that can see the picture during the day hours, when there is enough sunlight, and during the night in total darkness or minimum illumination. A day and night camera has special lenses that allow infrared emission produced by infrared LEDs and reflected from objects to go through and reach a CCD or ...
Infrared light from the LED of a remote control as recorded by a digital camera A hyperspectral image is a "picture" containing continuous spectrum through a wide spectral range at each pixel. Hyperspectral imaging is gaining importance in the field of applied spectroscopy particularly with NIR, SWIR, MWIR, and LWIR spectral regions.
The result is a very sensitive digital IR camera. [28]: 32 While it is common to use a filter that blocks almost all visible light, the wavelength sensitivity of a digital camera without internal infrared blocking is such that a variety of artistic results can be obtained with more conventional filtration.
LEDs are used for infrared illumination in night vision uses including security cameras. A ring of LEDs around a video camera, aimed forward into a retroreflective background, allows chroma keying in video productions. LED for miners, to increase visibility inside mines Los Angeles Vincent Thomas Bridge illuminated with blue LEDs
Infrared light from the LED of a remote control as seen by a digital camera. IR data transmission is also employed in short-range communication among computer peripherals and personal digital assistants. These devices usually conform to standards published by IrDA, the Infrared Data Association.
Far infrared has a wavelength of 15 micrometers (µm) to 1 mm. During night-time operations, police officers with range gated near infrared cameras can read license plates at a distance of up to 1.2 km. [7] Near Infrared (NIR) cameras are available to see 50 km through fog, haze, smoke, rain. [8]