VGI-150
2Pages

Catalog excerpts

> Camera tested with VGI-150 VGI-150 VEILING GLARE INDEX PRACTICAL TEST BENCH FOR THE VEILING GLARE INDEX MEASUREMENT The Veiling Glare Index measures the contrast reduction due to the dispersion of light entering an optical system. this phenomenon can arise from many sources, ranging from dirt on lenses, imperfections of optical materials, low quality anti-reflection coatings, or poor stray light rejection in the camera body. It may be a critical issues if the glare is obscuring the image of an automative back up camera, for example. HGH’s VGI-150 provides a practical tool and method of measuring and controlling the Veiling Glare Index in accordance with the ISO 9358 standard. As opposed to other testing tools available on the market, the VGI-150 is 8 times smaller: it can easily be deployed on a optical table or on a camera production line. Moreover, it creates repeatable measurements of Veiling Glare Index by presenting high contrast images thanks to its unique sphere in a sphere design. FEATURES • Equipment and software processes compatible with ISO 9358 standard • Footprint 8 times smaller than existing systems • Unique sphere in a sphere design providing high contrast image • Wide range and adjustable light outputs • Real time measurement of the contrast • Calibrated light output • X, Y and azimuth adjustment of the camera under test for incoming glancing angles < Veiling glare obscures the image of the tree

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VEILING GLARE INDEX > Highly contrasted target image > Wide FOV Image of Target TECHNICAL DATA VGI-150 Dimensions Maximum contrast ratio Available color temperature Maximum white level Luminance stability Number of lamp pairs Light level measurements by 2 detectors measuring the dark level and the white level independently Electronic unit size and weight Computer interface Power requirement > Image of a clean lens with VGI-150 > Image of a smudged lens with VGI-150 > Image of a clean lens with VGI-150 > Image of a smudged lens with VGI-150 Above information is subject to changes without...

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