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IR detector
(redirected from IR sensor)

   Also found in: Wikipedia 0.01 sec.
IR detector
(InfraRed detector) A sensing device that picks up radiation in the infrared band. Used extensively for still and video night vision cameras, cooled IR detectors can sense the makeup of nebulae light years in the distance. The IR industry is maturing rapidly and is expected to make devices that detect a myriad of conditions, including irregularities in machinery, ice on aircraft wings and faults in circuit boards.

Infrared detection works because most everything in our known world gives off heat, which emits radiation in the infrared band. The first IR detector actually dates back to 1800 when prisms were used to detect this band. By 1900, objects could be detected as far as a quarter mile in the distance. See infrared, IR remote control and IrDA.

IR Sensing in a Digital Camera
In 2001, Sony introduced the F707, its first digital camera with infrared sensing. The viewfinder at top uses the light in the room, while the bottom image shows the view with "Night Framing" turned on.


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Use a micro fibre cloth with a little bit of moisture on them; most of them are IR sensors, and dust can make them read false positives.
The passive IR sensor motion activates at distances up to 45 feet.
264 compression of high-definition video (for reduced bandwidth usage compared to the Motion JPEG or MPEG4 streams used until now), Wi-Fi connectivity (for securing perimeters), 2-way audio through integrated microphone/speaker functionality, LEDs (for lighting when requested by the user), and IR sensors (for detecting movement in the dark).
 
 
 
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