Abstract
In order to provide data on drive-in theater operation, the Screen Brightness Committee has sponsored a preliminary field survey. Measurements were made in 26 theaters among the eastern and central states, with screen widths about equally divided between the 40–60-ft and 60–120-ft range. Average screen brightness was 3.0 ft-L; no theater reached the indoor standard of 9–14 ft-L. Performance characteristics are summarized.
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