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THROW RATIO
Appendix D
Throw Ratio
About the Throw Ratio
Throw ratio refers to the ratio between the projector’s distance from the screen (or
throw distance) and the diagonal of the image projected on the screen. The following
pages provide throw ratio tables and graphics.
Desktop Installation
The following illustration and tables explain how to calculate the throw ratio for a
desktop configuration. The tables provide values for screen ratios of 16:9 and 4:3.
Desktop Installation
SCREEN
z1
z2
(Ground level)
y1, y2