Portable type unified glare measuring apparatus

Abstract

The invention mainly relates to measurement on unified glare indexes, belonging to the field of photoelectric detection and instrument design, applicable to detecting the unified glare rating of architectural lighting. A portable type unified glare measuring apparatus disclosed by the invention is composed of an optical imaging system, an image transmission interface, an image processing module, a correction module, a calculating and transmitting system, a CPU, a display system and a power module. The optical imaging system provided with an ultra wide angle lens is in charge of acquiring an image of an object which causes unified glare at a predicted position and transmitting the image to the image processing module by virtue of the image transmission interface, and the image processing module carries out filtering and enhancing and the like on the image. The correction module corrects the brightness of the processed image according to predetermined correction parameters, thus the apparent brightness of the object in the image is equivalent to the apparent brightness of a real object. The calculating and transmitting system calculates the unified glare indexes of the corrected image, then the unified glare indexes are transmitted to the CPU, and the CPU controls a liquid crystal display screen to display related information. The portable type unified glare measuring apparatus has high detection speed and small error and is portable.

Description

technical field [0001] The invention mainly measures the uniform glare index of architectural lighting, and belongs to the field of photoelectric detection and instrument design. Background technique [0002] There are many factors that affect the quality of architectural lighting, the most important of which is glare. Glare evaluation is an important and complicated part of architectural lighting quality evaluation. At present, there is no unified standard for the measurement of the unified glare index, and basically every country has its own measurement method. Japan, Canada and other countries use the visual comfort rate method, while the UK uses the glare index method, and Germany uses the luminance curve method (LC) method. China used the brightness curve method in the early years. However, this method is too complicated for the unified glare evaluation of architectural lighting with large areas and multiple lamps, and a large number of brightness curves are needed f...

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Problems solved by technology

However, this method is too complicated for the unified glare evaluation of architectural lighting with large areas and multiple lamps, and requires a large number of brightness curves to determine

Regarding the unified glare index measurement instrument, there is no report in China. A company in the United States has developed a glare index measurement device, but it uses integrating sphere technology, and the device is bulky and not portable.

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