- Day and Night Camera
A Day and Night Camera is a term used to describe a security camera that has ability to 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 kind of lenses that allows infrared emission produced by infrared LEDs and reflected from objects to go through and reach CCD or CMOS chip inside the camera. As the result, end user can see picture in total darkness at the distance of infrared emission, that produced by LEDs. Day and Night Camera can have infrared LEDs mounted on its housing or can accept the emission, produced by infrared turret. Often Day and Night Camera has modification in digital signal processor (DSP) that compensates the difference in illumination between day and night modes. Also HDR technology used in more expensive models to compensate the difference in illumination between shaded and lighted areas of surveillance.
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