The Hartl Optical Disk is designed to demonstrate laws of reflection and refraction in optics.
The set consists of an 11" rotatable disk with a 360° graduated scale, a light shield and a heavy tripod stand. It includes an accessory kit consisting of a plane mirror, a convex
lens, a concave lens, a prism, a trapezoid and a semicircular lens, all made of optical glass.
Requires a light source (not included).
Forensics Lab Supply Number 3330101.
Formerly Grau-Hall Corporation dba Grau-Hall Scientific.
Purchase orders may be sent by email to Staff @ grauhall.com or by FAX to 916 379 9639 or by mail to P. O. Box 279592, Sacramento, CA 95827-9592.