Charged coupled device (CCD) is a device which is designed for the transfer of electrical charge from within the device to a designated area where the charge can be converted into a digital value. This is done by moving the signals between different stages within the device. CCD is a major technology widely used in digital imaging. The pixels are then dedicated to light capture and the output’s uniformity, which is a key factor for the quality of the image, is high. CCD image sensors are capable of resolutions falling in the range of 10.2 megapixels or higher. The pixels in a CCD image sensor are presented by p-doped MOS capacitors
For capturing images through a CCD based image sensors, a photoactive region and a transmission region which is manufactured from a shift register. The image is then projected through a lens on to the capacitor array, causing them to collect a substantial amount of electric charge which is directly proportional to the intensity of the light at that particular location In a CCD image sensor, the pixel charge is transmitted through a restricted number of output nodes, which is then converted into voltage, buffered and sent-off chip as an analog signal. . One dimensional array which are in scan cameras, capturing a single portion of the image and two dimensional array are used in still and video cameras captures multidimensional picture that corresponds to the scene which is projected on to the focal plane of the sensor. Post exposure of the array to the image, a control circuit enables each of the capacitor to transfer its contents to its neighbor which operates as a shift register.
Low price of CCD base image sensors is pushing the demand for the market at present. Additionally, CCD based image sensors perform well in low light. Owing to this factor, CCD based image sensors are still being preferred by a fair amount of consumers. During the forecast period, low cost advantage of charge-coupled device (CCD) image sensor is estimated to exhaust due to obsolesce of this technology.
However, CCD based image sensors have become obsolete and have been taken over by CMOS based image sensors, which is highly restraining the market for CCD based image sensors. Further, CCD based image sensors tend to consume more power, produce more heat and are larger compared to CMOS based image sensors. In few cases CCD image sensors are require additional support IC’s for operation.
The global CCD image sensors market has been segmented on the basis of application into aerospace, automotive, consumer electronics (mobile phone, camera, and tablets among others), healthcare, industrial, entertainment, and security and surveillance among others. CCD based image sensors find wide application in healthcare sector due the wide application of high-quality image data. Over the years, the application of CCD image sensors have reduced in application sectors such consumer electronics such as smart phones, and digital cameras, where the manufacturers are increasing the application of CMOS based image sensors, instead of CCD image sensors.
On the basis of region, Asia Pacific dominated the global CCD image sensors market. The high growth of the market is mainly attributed to the rising purchasing power of the consumers and increasing exposure to technological advancements. North America is the second largest market for CCD based image sensors.
The global CCD based image sensors market dynamics is determined by multitude of factors including mergers and acquisitions, competitive rivalry, business streamlining, joint ventures and partnerships and product development through extensive research and development activities among others. Some of the major companies operating in this market are DALSA Corporation, Fairchild Imaging, Scientific Imaging Technologies, Hamamatsu Photonics and Narragansett Imaging.
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