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Distance gauge for medical image projection screen measurement uses light spot intersection
Distance gauge for medical image projection screen measurement uses light spot intersection
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机译:用于医学图像投影屏幕测量的测距仪使用光斑交点
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摘要
A distance gauge (100) measures the distance (D) between screen at the focal plane (B) and a transmission measurement system (10) lens (12) using switched (16) laser diode light sources (22, 24) to project spots intersecting at the focal distance.
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