<title>Retinal scanning display (RSD) technology and the task of measuring contrast</title>

Abstract

Retinal Scanning Display (RSD) technology is a comparatively new technology. What RSD technology is and how it differs from other display technologies is discussed below. This paper also discusses how to measure contrast of a RSD in a manner that allows comparison of contrast to other types of displays. At first sight, it seems to be a straightforward task involving a simple measurement. However the choice of contrast test procedure and equipment setup determines this number. A contrast ratio test is suggested as a method that allows for fair comparisons between different types of displays.

Image Quality Analysis and Optical Performance Requirement for Micromirror-Based Lissajous Scanning Displays

“…The system contrast ratio was also tested based on a light meter [ 23 ]. Figure 8 is the projection result of the contrast test with five black and white squares per line [ 24 ]. The photometer is set to different positions on the image in order to obtain the light intensity, and then the contrast ratio distribution is obtained.…”