With the improvement of the social level, people's requirements for the light environment are getting higher and higher. They are no longer limited to "lights can be lit and visible" but pursue "lighting comfort and human nature". In recent years, with the rise of LD lamps, the elimination of incandescent lamps, high-pressure sodium lamps and energy-saving lamps has brought energy saving and environmental protection, but also brought problems such as light pollution, which is in line with our human pursuit of "lighting comfort" , human nature”, especially glare, so how to control and detect glare has become a new topic.
Glare refers to the visual conditions that cause visual discomfort and reduce the visibility of objects due to unsuitable brightness distribution or extreme brightness contrast in space or time. A feeling of light in the visual field that the human eye cannot adapt to, which may cause disgust, discomfort or even loss of vision. Excessive brightness in a certain part of the field of view or excessive brightness changes before and after. Glare is one of the important causes of visual fatigue.
The glare is mainly determined by the following parameters:
1. The brightness of the string light source:
2. Brightness of ambient light:
3. The solid angle formed by the light source to the illuminated area, solid angle:
4. The spatial position of the glare source:
In contrast, the existing products on the market all use the luminance meter to test the brightness of different points or areas, and then use the goniometer or other auxiliary instruments to test the position of the glare. For the position coefficient of the glare source, it is the query standard. In addition to the inherent error of conversion between different instruments, the self-estimation of the index is not scientific in data collection, and the obtained data is difficult to convince.
HOPOOCOLOR GLARE METER GMS-1000, uses the camera as the sampling subject to obtain 4 basic indicators of glare at one time, and then import it into the software for weighted calculation according to the standard, which is scientific and convenient, and effectively avoids the error of the instrument itself. other errors.
It can better serve urban road lighting and related light environment evaluation tests, can effectively solve or reduce the problem of light pollution in cities, make a contribution to energy conservation and environmental protection, and make a good contribution to human comfort and humanized pursuit of light. push.
Corresponding national standards: CJJ45-91, GB50034, GB50033, GBT5700, EN13201, etc.
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