A PROJECTION TIMER FOR VISUAL RESEARCH.
JOHNS HOPKINS UNIV BALTIMORE MD PSYCHOLOGICAL LAB
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A device is described for providing visual images for research dealing with visual display methods. The apparatus will produce images variable in diameter from three inches to five feet, with exposure times adjustable from 0.15 to 0.8 seconds with build-up and decay time not exceeding four milliseconds. Author
- Anatomy and Physiology
- Test Facilities, Equipment and Methods