CCD performance parameter testing device and testing method

A parameter testing and performance technology, which is applied in TV, electrical components, image communication, etc., can solve the problems that cannot meet the actual needs, poor light mixing effect, poor uniformity of illumination, etc., and achieve stable color temperature and continuously variable illuminance , good light uniformity

Inactive Publication Date: 2015-04-29
中测测试科技有限公司
View PDF6 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • CCD performance parameter testing device and testing method
  • CCD performance parameter testing device and testing method
  • CCD performance parameter testing device and testing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: as figure 1 As shown, the purpose of this embodiment is to overcome the above-mentioned deficiencies existing in the prior art, to provide a test system of CCD performance parameters with better light mixing effect, the test system of CCD performance parameters, which includes PC control module 1, Main integrating sphere 2, camera obscura (not shown in the figure), first illuminance meter 4, three-dimensional bearing platform 5, stable power supply 6; described PC control module 1 includes video capture card (not shown in the figure); The video acquisition card is connected with the CCD to be tested; the first illuminance meter 4 is fixed on the three-dimensional carrying platform 5, and the three-dimensional carrying platform 5 is located in the dark box, the first illuminometer 4, the three-dimensional carrying platform 5 They are respectively connected with the PC control module through control lines.

[0032] Such as, Figure 2a , Figure 2bAs shown...

Embodiment 2

[0036] Embodiment 2: as Figure 4 , Figure 5 As shown, when present embodiment provides a kind of real-time control by the tester, adjusts illuminance, and automatically measures the test system CDD performance parameter test method of the CCD performance parameter to be tested, adopts the following steps to complete:

[0037] Step S01: Set the output current value of the stabilized power supply according to the parameters of the light source in the auxiliary integrating sphere.

[0038] Step S02: close the adjustable light bar, measure the illuminance of the light output port of the main integrating sphere when the adjustable light bar is closed; adjust the light output port of the main integrating sphere to the entrance of the dark box, close the adjustable light bar, and place the The first illuminance meter moves to the center of the light output port of the main integrating sphere to measure the current illuminance of the light output port of the main integrating sphere...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H04N17/00
Inventor 张宪亮刘若凡苏红雨刘夏茹曾道全
Owner 中测测试科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap