Community Discussions
Thin lens
Syed Viqar Jun 11, 2018 07:32 ![]() | Where very large 4 mt dia and above, very light, very cheap refractive lens of acrylic can be used. Lens generating 2000-3000 degree Celsius at focal point. |
Jim Moss Feb 28, 2019 12:44 ![]() | Many thanks for this post, this is what I need, I will definitely try. |