Optical measurement device of unified glare rating of LED lamp

A technology for LED lamps and optical measurement, which is applied in the direction of testing optical performance, etc., can solve the problems of low accuracy, no Gus position index and lamp solid angle measurement and calculation methods, and no rediscovery, so as to achieve easy portability, Reliable test means and high measurement accuracy

CN103528801AInactive Publication Date: 2014-01-22ZHEJIANG FORESTRY UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2014-01-22
Estimated Expiration
Not applicable · inactive patent

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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.
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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...

Examples

Embodiment Construction

[0014] The present invention is described in further detail below in conjunction with embodiment and with reference to accompanying drawing: see figure 1 , an optical measurement device for uniform glare value of LED lamps, comprising a laser range finder 1, an angle meter 2, an imaging lens 3, a high-resolution CCD 4, a microprocessor 5, a display 6; an optical range finder 1, an angle meter 2, The high-resolution CCD 4 and the display 6 are connected to the microprocessor 5 respectively, and the laser range finder 1 projects a laser light 10 to reach the target LED lamp 7, and then the laser range finder 1 outputs the measured distance value to the microprocessor 5; The goniometer 2 outputs the deviation angle value of the laser rangefinder 1 relative to the horizontal direction to the microprocessor 5; the imaging lens 3 images the light 9 of the target LED lamp 7 and its surrounding scenery 8 onto the high-resolution CCD4 , the high-resolution CCD4 outputs the captured ima...