05-17-2022, 04:12 AM
(05-16-2022, 07:30 PM)Brightcolours Wrote:
Except that Wim does not understand the principle if the DO/PF. They are not Fresnel lenses with refractive optical properties like "normal" lenses, but instead diffractive optical elements...
Ok ....... well there's a lot more to it than finally "meets our eye in the form of an image" that's for sure !! .........
thanks for that BC !!