Figure 3:
Z-positioning mechanisms for focusing. (a) 2 mm pitch screw used for Z-positioning between the target lens and the plate. (b) 2 mm pitch screw used for Z-positioning between the eyepiece lens and the Smartphone.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.