CCD performance parameter testing device and testing method

Abstract

The invention relates to the field of light sensation device performance testing, in particular to a CCD performance parameter testing device and a testing method. The CCD performance parameter testing device comprises a PC control module, a main integrating sphere, an opaque chamber, a first illuminometer, a three-dimensional loading platform, stabilized power supply and auxiliary integrating spheres which are arranged on an hemisphere, at the side of a light output port, of the main integrating sphere; light sources of the CCD performance parameter testing device are provided by the multiple auxiliary integrating spheres arranged on the main integrating sphere and the light sources have a double-light-mixing effect so that light output by the main integrating sphere can be better in the homogeneity, light output ports of the auxiliary integrating spheres are provided with adjustable light bars so that a testing light source with continuously variable illuminance and a more stable color temperature can be provided; and meanwhile, illuminometers and the method from a CCD to be tested to the light output ports are automatically switched over in an alternating mode so that a measuring result can be more accurate.

Description

technical field [0001] The invention relates to the technical field of photosensitive device performance testing, in particular to a CCD performance parameter testing device and testing method. Background technique [0002] Charge Coupled Device (CCD for short, also known as CCD image sensor, image controller), is a light energy conversion device, which is made of high-sensitivity semiconductor material, which can convert light into electric charge and store it. . CCD has been widely used in camera, image acquisition, scanner and industrial measurement and other fields. The performance parameters of the CCD include noise, responsivity (SiTF), saturation illuminance, threshold illuminance, dynamic range, and uniformity. These performance parameters must be tested before the CCD leaves the factory to ensure that the factory CCD has good performance. [0003] At present, most of the ways to detect the performance parameters of CCD are based on optical and photoelectric test e...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the ways to detect the performance parameters of CCD are based on optical and photoelectric test equipment through visual measurement, manual interpretation and manual data processing, and most integrating spheres only provide one-time mixed light, and the mixed light effect is not good. Illumination uniformity is not strong, can not meet the actual needs

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