Traditional Culture Encyclopedia - Photography major - The laboratory lighting standard is how bright.
The laboratory lighting standard is how bright.
For standard light, brightness refers to the brightness of the light beam projected by the projector bulb on the screen.
According to the wattage marked by the fluorescent lamp, directly look at the lighting level.
grade
The standard values of illuminance should be 0.5, 1, 3, 5, 10, 15, 20, 30, 50, 75, 100, 150, 200, 300, and 200. Lx (lux) is the unit of illumination.
The standard value of illuminance is classified as the smallest change of illuminance obviously felt in subjective effect, and the difference of illuminance is about 1.5 times, which is basically consistent with the standard classification of indoor workplace lighting of CIE International Luminous Committee S008/E-200 1.
Refer to the above content: Baidu Encyclopedia-illuminance standard value
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