High spatial resolution schlieren photography
Abstract
Some geometrical optical considerations for attaining spatial resolution of about 100 microns in a photographic schlieren experiment are presented. The topics of astigmatism, coma, and spherical aberration are considered briefly. Special emphasis is directed to diffraction effects in a single-mirror schlieren instrument. A method for estimating the size of limiting apertures in the knife-edge plane to allow a particular spatial resolution, compromised vs photographic sensitivity, is reported. A sample application for photographing the schlieren effects in a small spark discharge is included.
- Publication:
-
Applied Optics
- Pub Date:
- February 1977
- DOI:
- Bibcode:
- 1977ApOpt..16..473H
- Keywords:
-
- High Resolution;
- Optical Properties;
- Schlieren Photography;
- Aberration;
- Apertures;
- Astigmatism;
- Diffraction Patterns;
- Electric Sparks;
- Instrumentation and Photography;
- PHOTOGRAPHY;
- SCHLIEREN TECHNIQUE;
- LASERS: NITROGEN