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  2. Camera trap - Wikipedia

    en.wikipedia.org/wiki/Camera_trap

    The major alternative light source is infrared, which is usually not detectable by mammals or birds. [2] Camera traps are also helpful in quantifying the number of different species in an area; this is a more effective method than attempting to count by hand every individual organism in a field.

  3. Day and night camera - Wikipedia

    en.wikipedia.org/wiki/Day_and_night_camera

    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 ...

  4. Optical wireless communications - Wikipedia

    en.wikipedia.org/wiki/Optical_Wireless...

    On the other hand, terrestrial point-to-point OWC systems, also known as the free space optical (FSO) systems, [2] operate at the near IR frequencies (750–1600 nm). These systems typically use laser transmitters and offer a cost-effective protocol-transparent link with high data rates , i.e., 10 Gbit/s per wavelength, and provide a potential ...

  5. Multi-spectral camouflage - Wikipedia

    en.wikipedia.org/wiki/Multi-spectral_camouflage

    The caterpillar of the eyed hawk-moth Smerinthus ocellatus is camouflaged to match a leafy background in both visible and infra-red light.. The English zoologist Hugh Cott, in his 1940 book Adaptive Coloration in Animals, wrote that some caterpillars such as the eyed hawk-moth Smerinthus ocellatus, and tree frogs such as the red-snouted treefrog Hyla coerulea, are coloured so as to blend with ...

  6. Infrared lamp - Wikipedia

    en.wikipedia.org/wiki/Infrared_lamp

    Solid-state light emitting diodes can be produced to be efficient sources of near-monochromatic infrared energy. Such sources can be rapidly modulated for communication systems and control signals. A light emitting diode can be closely coupled to an optical fiber, allowing infrared signals to be sent up to scores of kilometres without ...

  7. Zoo in Colorado Springs Shares Update After Welcoming ...

    www.aol.com/lifestyle/zoo-colorado-springs...

    The Cheyenne Mountain Zoo in Colorado Springs shares an update after welcoming a "surprise" Red River Hog baby. On September 4, 2024, the Cheyenne Mountain Zoo shared the news that their 8-year ...