TIR lens manufacturing process During TIR lens manufacturing, often the designers do not pay attention to color uniformity, which also limits their application. You can however address this problem through effective color mixing, and use a phosphor-converted white LED module integrated with a compact modified free form to get compact size and high angular color uniformity (ACU).
Manufacturers design total internal reflection lens with an optimization method to combine and transfer most of the light emitted from LED optics into a rectangular target plane or RTP representing SLM. Typically, TIR lens has six surfaces controlled by seventeen dimensional parameters.
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