Digital Projection Mercury Quad Series, Инструкция по установке и быстрому запуску

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Digital Projection Mercury Quad Series
Reference Guide
CHOOSING A LENS
Rev A March 2017
Calculating the throw ratio with TRC
1. For TRC > 1, amend the basic throw ratio formula as follows:
Throw distance
Screen width x TRC
Throw ratio =
2. Once a throw ratio is established, identify the matching lens from the table:
Throw ratio Throw distance range
0.67:1 fixed lens 1.1 m - 10 m (3.6 ft - 33 ft)
1.12:1 fixed lens 3 m - 15 m (9.8 ft - 49.2 ft)
1.16 - 1.49:1 zoom lens 3 m - 15 m (9.8 ft - 49.2 ft)
1.39 - 1.87:1 zoom lens 4 m - 24 m (13.1 ft - 78.7 ft)
1.87 - 2.56:1 zoom lens 4 m - 24 m (13.1 ft - 78.7 ft)
2.56 - 4.16:1 zoom lens 9.1 m - 45 m (29.9 ft - 147.6 ft)
4.16 - 6.96:1 zoom lens 12 m - 80 m (39.3 ft - 262.5 ft)
6.92 - 10.36:1 zoom lens 12 m - 80 m (39.3 ft - 262.5 ft)
3. Ensure the required throw distance is within the range of the matching lens.
Notes
TRC can only be applied if greater
than 1. If TRC is 1 or less, disregard
it and calculate the throw ratio using
the basic formula.