Epson PowerLite 9100i User Manual - Page 108

Short Throw Zoom Lens ELPLW01, Fixed Short Throw Lens ELPLR01

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Short Throw Zoom Lens (ELPLW01) To determine the diagonal size of an image when you know the projection distance: I Inches: Maximum diagonal size = (0.876 × projection distance) + 3.8 Minimum diagonal size = (0.730 × projection distance) + 3.0 I Centimeters: Maximum diagonal size = (0.876 × projection distance) + 9.6 Minimum diagonal size = (0.730 × projection distance) + 7.7 To determine the projection distance when you know the diagonal size of the screen image: I Inches: Maximum projection distance = (1.369 × diagonal size) - 4.1 Minimum projection distance = (1.142 × diagonal size) - 4.3 I Centimeters: Maximum projection distance = (1.369 × diagonal size) - 10.5 Minimum projection distance = (1.142 × diagonal size) - 11.0 Fixed Short Throw Lens (ELPLR01) To determine the diagonal size of an image when you know the projection distance: I Inches: Diagonal size = (1.239 × projection distance) + 3.4 I Centimeters: Diagonal size = (1.239 × projection distance) + 8.7 To determine the projection distance when you know the diagonal size of the screen image: I Inches: Projection distance = (0.807 × diagonal size) - 2.8 I Centimeters: Projection distance = (0.807 × diagonal size) - 7.0 102 Technical Specifications

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102
Technical Specifications
Short Throw Zoom Lens (ELPLW01)
To determine the diagonal size of an image when you know the
projection distance:
■
Inches:
Maximum diagonal size = (0.876
×
projection distance) + 3.8
Minimum diagonal size = (0.730
×
projection distance) + 3.0
■
Centimeters:
Maximum diagonal size = (0.876
×
projection distance) + 9.6
Minimum diagonal size = (0.730
×
projection distance) + 7.7
To determine the projection distance when you know the diagonal
size of the screen image:
■
Inches:
Maximum projection distance = (1.369
×
diagonal size) – 4.1
Minimum projection distance = (1.142
×
diagonal size) – 4.3
■
Centimeters:
M
aximum projection distance = (
1.369
×
diagonal size)
–
10.5
M
inimum projection distance = (
1.142
×
diagonal size)
–
11.0
Fixed Short Throw Lens (ELPLR01)
To determine the diagonal size of an image when you know the
projection distance:
■
Inches:
Diagonal size = (1.239
×
projection distance) + 3.4
■
Centimeters:
Diagonal size = (1.239
×
projection distance) + 8.7
To determine the projection distance when you know the diagonal
size of the screen image:
■
Inches:
Projection distance = (0.807
×
diagonal size) – 2.8
■
Centimeters:
Projection distance = (
0.807
×
diagonal size)
–
7.0