Radiant Zemax: to optimize the design of the LED optical near-field optical test plan

It is understood that currently in the process of LED device or design of lamps and lanterns, generally USES two models for simulating light source, and the 'light far-field model' and 'light source in near field model'. And more than the traditional method with LED light source, the far field test data for the design basis, the light source is regarded as an isotropic point light source, is only in view of the LED light source is relatively coarse measurement, and can not accurately describe the spatial light distribution of light source, is easy to cause the asymmetry of chromaticity and brightness LED products, light source, the overall efficiency is low, the LED light set access has become the bottleneck of the LED optical design problem. Get and, therefore, reasonable utilization of the LED light source of accurate and detailed information, especially the light source spatial light distribution information is the key point of LED optical design. Compared to the far field test, the light source near field model is a light source as a complex surface light source to study its luminous actual situation. Therefore, through the near field test was carried out on the LED light source, the point of view of quantity, the light can get contains light range, total flux, and the light set file detailed source information, such as the starting point of light. Near field test for application of the LED light source the light set can effectively improve the quality and efficiency of LED optical design. According to Evan Mattson, RSM ( 辐射源模型) Is light source near field efficiency score according to industrial standard model, it has a wealth of information, can provide brightness value and color coordinate parameters, and can also save all measurement, the influence of and the ability to use Radiant Zemax ProSource? Function to make it more accurate, can produce a more complete ray used to provide optical design in the prototype, reduce unnecessary in the optical design time. Radiant Zemax launched a SIG - at present 300400 series products, such as for acquisition and pooling around the light source multi-angle faces the brightness and color measurement, the light will collect the signals to the RSM to further analyze the efficiency of the light source, the data can be used to provide optical design.