Image Engineering
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3.5 Flicker
Camera systems are often part of safety systems, such as in the automotive or security industries.
Often, they must handle different illumination scenarios, such as traffic lights, LED street illumination,
LED stop lights, etc. Different light sources use different frequencies and duty cycles, which can affect
the image quality and cause the loss of image information.
The LG3 simulates different light sources with its capability to vary the duty cycle and frequency of the
illumination. The adjustable duty cycle settings of the 32 kHz frequency can change the illumination,
and the flicker frequency is modulated on the 32 kHz frequency.
Modulated flicker frequencies
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Time [ms]
Flicker (simplified representation)
32kHz Signal / DutyCycle_Main = 50%
Resulting Flicker Signal 500Hz /DutyCycle_Flicker = 50%
