Distance calculation formula between projector and screen
With a projector, you can project it by simply making a file on your computer. When you purchase a projector, you need to pay attention to the brightness and contrast of the projector, as well as the focal length of the projection and the size of the LCD. It is convenient to calculate the projection distance and screen size. So how should the distance between the projector and the screen be calculated?
The distance calculation formula between the projector and the screen:
Minimum projection distance (m) = minimum focal length (m) x screen size (inches) 液晶 LCD size (inches)
Maximum projection distance (m) = maximum focal length (m) x screen size (inches) 液晶 LCD size (inches)
Screen size projection distance known to give
Maximum projection screen (m) = projection distance (m) x LCD size (inches) æœ€å° minimum focal length (m)
Minimum projection screen (m) = projection distance (m) x LCD size (inches) ÷ maximum focal length (m)
E.g:
1. The focal length of the Toshiba TLP-S71 is 26.5mm~31.5mm. The size of the LCD is 0.7-inch LCD panel, which requires an 85-inch screen.
Minimum projection distance (m) = 0.0265 m x 85 inches ÷ 0.7 inches = 3.217 m
The maximum projection distance (m) = 0.0315 m x 85 inches ÷ 0.7 inches = 3.825 m
2. Known: The focal length of EPSON EMP-6000 is 24.0 - 38.2 mm, the size of the LCD is 0.8 inch LCD panel, and the projection distance is 4 meters.
Seeking: The largest projected picture and the smallest projected picture.
Maximum projection screen (inches) = 4 m x 0.8 inches ÷ 0.024 m = 133.3 inches
Minimum projection screen (inches) = 4 m x 0.8 inches ÷ 0.0382 m = 83 inches
The distance between the projector and the screen is introduced for everyone. The projector has penetrated into people's daily life. There are many advantages to knowing more about related knowledge.
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