IFNews quotes Chinese sites HQEW, EEPW, UDN, that refer to Taiwan Economic Times reporting that image sensors are in short supply now. This follows the shortages of capacitors, resistors, discrete MOSFETs, lenses, AF motors, and other components in the recent months. In case of image sensors, the main reason is said to be the growing adoption of dual- and triple-camera smartphones. Sony and Omnivision are increasing their image sensor prices. The smaller smartphone manufacturers, being unable to secure Sony, Omnivision, and Samsung sensors, are shifting their orders to Pixart and Silicon Optronics (SOI) as the cheaper alternatives.
IE 2008 publishes a paper " LED flicker: Root cause, impact and measurement for automotive imaging applications " by Brian Deegan, Valeo Vision Systems. " In recent years, the use of LED lighting has become widespread in the automotive environment, largely because of their high energy efficiency, reliability, and low maintenance costs. There has also been a concurrent increase in the use and complexity of automotive camera systems. To a large extent, LED lighting and automotive camera technology evolved separately and independently. As the use of both technologies has increased, it has become clear that LED lighting poses significant challenges for automotive imaging i.e. so-called "LED flicker". LED flicker is an artifact observed in digital imaging where an imaged light source appears to flicker, even though the light source appears constant to a human observer. This paper defines the root cause and manifestations of LED flicker. It defines the use cases wher...
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