200mm & 250mm Fresnel Lens

 

Fresnel Lens ψ200mm & 250mm Simulation



Light source:CREE CXA2590
Flux:10,000 lm



Fig. 1 CREE CXA2590

Table 1:Simulation results

Lens
diameter
Lens focal
length
Light
collection
angle
Efficiency Beam Angle
(Full)
7m Maximum luminance
(theoretical)
250mm 160mm 38 63.07% 9.69 3551.9631229977840000Lux
200mm 128mm 38 63.32% 12.09 2282.1793524316722000Lux

Simulation:

The results of 200mm Fresnel Lens are similar to that of 250mm one,the difference is larger beam angle, larger light pattern and lower luminance value.



Fig. 2 250mm Fresnel Lens section dimensions





Fig. 3 250mm Fresnel Lens ray-tracing



(a)



(b)



(c)



(d)



(e)



(f)

Fig. 4 (a)~(f) 250mm Fresnel Lens Light pattern and illuminance analysis in 7 meters distance



(a)



(b)



(c)



(d)

Fig. 5 (a)~(d) 250mmFar field light angle distribution