Allow me to repost here for depth/frequency setting 05Go*Qv V
The main fresnel lens types are: M- += t8
i5^U1K\M
* Constant groove depth. 8 ORr
* Contant groove pitch types. 2w? 5 vSv
n"c3C)
So if your depth is fixed you will define +ve value in the cell and to specify the "height" or "depth" of each groove feature. If the frequency of the groove is fixed then you use -ve value. Say putting down - 5 this implies that there are 5 grooves with a unit length.
-z$&lP]
:*{\oqFn~$
For radius, this is the curvature of the base surface. If you define one such lens and chaneg the radius and you shall see what it means. A graphic tells lounder than words. u9R:2ah&K
b9@VD)J0E
For conic: check conic section using Wikipedia and you should see what conic constant means. GLIP;)h1
$y&1.caMa
-$m?ShDd
