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LED Lens Selection Techniques
- Aug 13, 2018 -

1. Angle is a relative value. Generally, the angle of the beam is defined by the trigonometric function between the diameter of the visible spot and the irradiation distance.

2. To see what your customers want for light intensity, some spots are bright in the middle and then fade around, and some things go dark at the edge of the spot. There is no definite demarcation line for the area around the spot. It depends on whether your client's requirement for light intensity is fifty percent or twenty-five percent, or other criteria.

3. This also depends on how your light source is. Imagine if your LED can be like the sun, then its angle is very large. It should be enough to use a little bit of excess light for other things. This is easy to understand the connection between the attenuation of the spot at point 2.

4, then the lens of the module will be a little larger than a single one, and the distance from the LED will also affect the angle.

5, the angle is a relative value, not absolute. The lens of LED depends on the measured results and is constantly adjusted, so we can not simply request the lens angle.

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