Recent content by MattLi

1. In the LED illumination, both collector and condenser lenses are used. These are moded glass asphric lenses with 25 focal length. The condenser is very close to the sample. 2. In the fiber illumination, a multi-mode fiber is used. A single precision-polished asphric lens is used to focus...

Excellent, Andy. I saw these posts while searching answers and solutions for my custom-built miscroscope. The microscope I built is 20X, and I am using it to inspect some micro-structure samples. I tried two different illumination system. The first illumination system focuses a single...