CCD Camera Sensor Size

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vscid Commentator Join Date: Nov 2007 Posts: 67	CCD Camera Sensor Size 02/24/2010 2:39 PM
	When they say that the CCD sensor size is 1/2 inch, what does the 1/2 inch realy mean?
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Doorman Guru Join Date: Apr 2009 Location: Yellowstone Valley, in Big Sky Country Posts: 7425 Good Answers: 295	#1 Re: camera CCD sensor size 02/24/2010 3:07 PM
	This explaination compliments of Wikipedia, the Free Encyclopedia: "Sensors (CCD / CMOS) are often referred to with an imperial fraction designation such as 1/1.8" or 2/3", this measurement actually originates back in the 1950s and the time of Vidicon tubes. Compact digital cameras and Digicams typically have much smaller sensors than a Digital SLR and are thus less sensitive to light and inherently more prone to noise." For more information, and a complete answer to your question, follow this link: http://en.wikipedia.org/wiki/CCD_camera __________________ Semper Ubi Sub Ubi
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g srikanth Associate Join Date: Jul 2007 Location: Indore, India Posts: 53 Good Answers: 5	#2 Re: CCD Camera Sensor Size 02/24/2010 11:20 PM
	1/2" means the diagonal of the CCD sensor measures 8mm.1" corresponds 16mm. With fractions, it is usually rouded off to nearest integer. eg., 2/3" corresponds to the diagonal of 11mm, instead of 16*2/3~10.66mm ( see, for example,application note of Edmund Optics).However, this size of sensor alone can not tell vertical and horizontal dimensions of sensor.To know vertical and horizontal dimensions, one needs to know aspect ratio too, which generally is 4:3 (horizontal:vertical) for CCD cameras used industrial/scientific imaging.
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You might be interested in: Camera Control Units, CCD Image Sensors, CCD Cameras

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