Characterization and use of a digital light projector for vision research

Vision Res. 2001 Feb;41(4):427-39. doi: 10.1016/s0042-6989(00)00271-6.

Abstract

For creating stimuli in the laboratory, digital light projection (DLP) technology has the potential to overcome the low output luminance, lack of pixel independence, and limited chromaticity gamut of the cathode ray tube (CRT). We built a DLP-based stimulator for projecting patterns on the in vitro primate retina. The DLP produces high light levels and has good contrast. Spatial performance was similar to that of a CRT. Temporal performance was limited by the refresh rate (63 Hz). The chromatic gamut was modestly larger than that of a CRT although the primary spectra varied to a small degree with light output and numerical aperture.

Publication types

  • Evaluation Study
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Analog-Digital Conversion
  • Animals
  • Equipment Design
  • Macaca mulatta
  • Photic Stimulation / instrumentation*