ANSI IT7.204-1991 标准详情
- 标准号:ANSI IT7.204-1991
- 中文标题:视听系统(摄影).高架投影机.测定和记录性能特征的方法
- 英文标题:Audiovisual Systems (Photography) - Overhead Projectors - Methods for Measuring and Reporting Performance Characteristics
- 标准类别:美国国家标准
- 发布日期:1991
This standard specifies methods of measurement for light output, uniformity of illumination, picture outline distortion, maximum available projection elevation and temperature rise on the projection stages of overhead projectors. It includes a form o
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