aperture len造句怎么写

This paper focuses on four main types of axial-symmetrical electrostatic lens: film aperture lens, double-cylinder immersion lens, convex lens and immersion object lens.

This paper deals with an investigation of intensity distribution of the partially coherent Bessel beams focused by an aperture lens.

It has a wide-aperture lens to capture as much light as possible, and the technology requires no clunky auto-focus mechanism. It adjusts exposure time automatically.