[Calculation formula for large rear projection screen display space] Engineering projection screen technology introduction

The formula for calculating the display space of the rear-projection large screen is as follows:

1: The distance of direct projection and rear projection u003d the length of the bottom of the screen x the multiple of the projector lens. The bottom of the 120-inch screen is 2489 (mm) x the current lens multiple of ordinary projectors is 2.0 u003d the distance of direct projection and rear projection is 4972 (mm) ) 2: Secondary reflection rear projection distance u003d the length of the bottom of the screen x the multiple of the projector lens x 0.6 The bottom of the 120-inch screen is 2489 (mm) x the current multiple of the ordinary projector lens 2.0 x 0.6 u003d direct projection rear projection distance 2983.2 (mm)

The above formula is for reference only, and the actual distance depends on factors such as environment and equipment.

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