It is a sub-project of National science and technology support program “Research on Metrolo...

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Research in Metrological Standards and Traceability Method of Visual Threshold Equipments

 

It is a sub-project of National science and technology support program “Research on Metrological standards and traceability system of Visual and hearing diagnostic equipments”. Its goal is to study the subjective visual inspection method based on visual threshold to establish metrological standard device for visual thresholds including illumination, contrast and color difference. The standard established can not only achieve the measurement of the human visual threshold, but also solve the calibration and traceability of the subjective visual diagnostic equipments widely used in clinical such as  contrast sensitivity analyzer, contrast card and color vision tester, etc. Totally funding is 2.727 million Yuan and it is expected to be completed by the end of 2015.