As shown in the figure above, what we see is the most intuitive LED floodlight light distribution curve. Through the light distribution curve, we can roughly know the light intensity, beam angle and other information of the lamp.
AIKO LED flood light light distribution curve IES file:
The above file is the light distribution curve file of AFL09–1800W-NB-P55 high-power outdoor LED flood light 1800W, and the luminous angle is NB-P55°,You can download it by clicking. This IES file can be used to develop lighting designs such as DIALUX/AGI32. Realistic lighting effects can be simulated in the software.
When simulating the lighting effects of a stadium, wall, or building, we can find out how many lamps and lanterns are used, how much illumination we can arrange, etc., by using the lamps IES file. These are the early stages of illumination, but they are necessary.
Introduction of light distribution curve of led flood light
Definition: The light distribution curve represents the distribution factor of the light emitted by a luminaire or light source in the space, the size of the luminaire, and the efficiency of the luminaire, including the manufacturer and model of the luminaire. Of course, the most important thing is to record the light sources of the lamps in all directions.
How to get the light distribution curve: The light distribution curve is obtained by the lamp manufacturer, after assembling the lamp light source and electrical appliances, and obtaining various actual parameter reports and light distribution curve IES files of the lamp through the light distribution curve test instrument;
Representation of light distribution curve:
1, Based on its symmetry properties, the light distribution curve can usually be divided into: axial symmetry, symmetry, and asymmetry
Axial symmetry: which is also known as rotational symmetry, which states that the light distribution curves in all directions are all symmetrical, and these are represented in general lighting and in industrial and mining lamps as well;
Symmetrical light distribution curves can be described when the lamp C0°’s light distribution is symmetrical with the C180° profile, as well as the C90° and C270° profiles.
Asymmetry: the presence of an asymmetric light distribution in any of the C0°, C180°, C90°, and C270° sections.
2,Classification of LED floodlight light distribution curve beam angle:
Light distribution curves can usually be divided into narrow beams, wide beams, medium beams, etc.
①Narrow beam: beam angle <20° ②Medium beam: beam angle 20°~40° ③Wide beam: beam angle >40°
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