Posted by benao ptics
Aspherical lenses do not have a simple spherical surface; instead, they have a rotationally symmetric, smooth, Read More...
Posted by benao ptics
The dome at the upper end of a all sky camera include protecting the lens, collecting light, and preventing st Read More...
Posted by benao ptics
The optical alignment cube is an important tool used for the precise measurement and calibration of optic Read More...
Posted by feifanpatch com
Our focus vitamin patch use transdermal absorption technology to allow vitamins to reach the base of the Read More...
Posted by feifanpatch com
Disposable self-heating warm insoles provide instant warmth. With 6-8 hours of long-lasting heat, the breathab Read More...