IES file is the light source (light) with light curve file electronic format, because it is the extension "*." ", So we usually call it directly as IES file. The meaning of the IES file is a file format that is customarily implemented by the North American Lighting Association and is the default light source distribution for many regions.
For the lighting industry practitioners, the concept of IES file will not be unfamiliar. First introduce IES. IES (North American Lighting Engineering Society) is the English Illuminating Engineering Society of North America short, I.E.S was founded in 1906, is a technical society. The Institute's standardization work is the responsibility of over 80 technical committees and subcommittees. The technical commissions are engaged in the development of various lighting equipment research and standards to investigate the problems of lighting in various fields and report to the directors. Such as airports, airplanes, farms, factories, research institutes, offices, public transport, homes, schools, service spaces, streets and highways, theaters and television stations. Other topics include light sources, lighting and air conditioning. IES also has partnerships with other professional organizations, such as the International Commission on Illumination (ICI).
IES file is the light source (light) with the light curve file electronic format, because it is the extension "ies*." ", So we usually call it directly as IES file. The meaning of the IES file is a file format that is customarily implemented by the North American Lighting Association and is the default light source distribution for many regions.
IES If you look at it with thumbnails, you see the meridian curve of the meridian, which is the polar coordinate curve, as follows Lisun's IES file diagram. However, if it is to use ASCII text files (that is, usually used in the notebook, the extension "*. Txt") format to open, there is a fixed format to record a certain amount of information.
Li Shan Electronics LSG series of distributed photometer completely controlled by the software, including the instrument rotation, data collection outlet, real-time screen display, test report printing, etc., can be realized by the software operation, the use of operation is very convenient. The system can export the following format:
These format files can be called directly by the relevant lighting design software, such as DIALUX. The application software can also achieve the necessary calculation of lighting design requirements as a work plane and other illumination distribution curve, brightness limit curve, lamp efficiency, effective beam angle, upward luminous flux ratio, downward luminous flux ratio, effective luminous flux, using coefficient curve and other necessary calculations The
Distributed photometer has been widely used in lighting design.