Optical measurement device of unified glare rating of LED lamp

Abstract

An optical measurement device of the unified glare rating of an LED lamp comprises a laser range finder (1), an angle gauge (2), an imaging lens (3), a high-resolution CCD (charge coupled device), a microprocessor (5) and a display (6), wherein the laser range finder (1) projects laser to a target LED lamp (7), and at the same time, the observation distance between the laser range finder (1) and the target LED lamp (7) is measured; the angle gauge (2) outputs a view angle value of deviation of a laser direction of the laser range finder (1) relative to a horizontal direction to the microprocessor (5); and the imaging lens (3) images the target LED lamp (7) and surrounding scenes of the lamp to the high-resolution CCD, and the microprocessor (5) calculates the unified glare rating of discomfort glare of the lamp according to images shot on the high-resolution CCD, the observation distance and a view angle. According to the method, the unified glare rating of discomfort glare of indoor and outdoor lamps of an actual service environment is measured accurately, and the safety use of the lamps is standardized further.

Description

【Technical field】 [0001] The invention relates to an optical measuring device for the uniform glare value of a lamp, in particular to an optical measuring device for the uniform glare value of an LED lamp. 【Background technique】 [0002] Due to the energy saving and environmental protection of LED, the use of LED lamps is increasing. However, there is also a defect in the use of LED lamps, that is, the luminous energy of LEDs is concentrated at one point, and the use of LED lamps is easy to bring discomfort to people in the lighting environment. Good lighting facilities in the workplace are not limited to providing good job visibility, but more importantly, providing a comfortable light environment. Glare is caused by too high brightness or too strong contrast in the field of vision, which will affect people's visual imaging of objects. In the standards for the use of lamps, there are clear requirements for the level of uncomfortable glare. [0003] According to the requi...

AI Technical Summary

Problems solved by technology

However, the patent does not give the measurement and calculation method of the Goose position index and the solid angle of the lamp, and only relies on image analysis to obtain the Goose position index and the corresponding solid angle of the target lamp, and the accuracy is not high

In addition, there are no data reports and physical products available on the market to improve the above deficiencies.

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