An official website of the United States government
Here's how you know
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.
Two-point image formation. (a) General imaging system (adapted from [28]), (b) Finite corrected microscope system (adapted from [43]), (c) Infinite corrected microscope system.