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Calculation of the projection distance for each projection lens (for PT-D9610U)
If there is no reference made to the require picture size, calculate the projection distance using an expression
below after obtaining the diagonal measurement (inch) of the screen you will use.
Model No. of projection lens
Aspect ratio
4:3
16:9
16:9
4:3
4:3
16:9
ET-D95LE5
(1.5 – 2.0 : 1)
ET-D95LE6
(2.0 – 2.5 : 1)
ET-D95LE7
(2.5 – 4.0 : 1)
ET-D95LE9
(0.8 : 1)
Z o o m l e n s
Fixed
focal
lens
Methods of calculation of Projection distance (L) Unit : inches
L = 0.636 x diagonal of screen(inches) + 9.921
L = 0.659 x diagonal of screen(inches) + 9.921
ET-D95LE8
(4.0 – 7.0 : 1)
L = 0.736 x diagonal of screen(inches) + 9.921
4:3
4:3
16:9
16:9
5:4
5:4
5:4
5:4
5:4
Min. : L = [(diagonal of screen(inches) x 3.488 + 5.079
Max. : L = [(diagonal of screen(inches) x 6.11
Min. : L = [(diagonal of screen(inches) x 3.125 + 5.079
Max. : L = [(diagonal of screen(inches) x 5.474
Min. : L = [(diagonal of screen(inches) x 3.2 + 5.079
Max. : L = [(diagonal of screen(inches) x 5.606
Min. : L = [(diagonal of screen(inches) x 2.178 + 2.992
Max. : L = [(diagonal of screen(inches) x 3.484 - 0.039
Min. : L = [(diagonal of screen(inches) x 1.952 + 2.992
Max. : L = [(diagonal of screen(inches) x 3.121 - 0.039
Min. : L = [(diagonal of screen(inches) x 1.999 + 2.992
Max. : L = [(diagonal of screen(inches) x 3.196 - 0.039
Min. : L = [(diagonal of screen(inches) x 1.787+ 7.874
Max. : L = [(diagonal of screen(inches) x 2.183 + 8.031
Min. : L = [(diagonal of screen(inches) x 1.601 + 7.874
Max. : L = [(diagonal of screen(inches) x 1.956 + 8.031
Min. : L = [(diagonal of screen(inches) x 1.639 + 7.874
Max. : L = [(diagonal of screen(inches) x 2.003 + 8.031
Min. : L = [(diagonal of screen(inches) x 1.344 + 5.67
Max. : L = [(diagonal of screen(inches) x 1.785 + 5.157
Min. : L = [(diagonal of screen(inches) x 1.204 + 5.67
Max. : L = [(diagonal of screen(inches) x 1.6 + 5.157
Min. : L = [(diagonal of screen(inches) x 1.233 + 5.67
Max. : L = [(diagonal of screen(inches) x 1.638 + 5.157
Model No. of projection lens
Aspect ratio
4:3
16:9
16:9
4:3
4:3
16:9
ET-D95LE5
(1.5 — 2.0 : 1)
ET-D95LE6
(2.0 — 2.5 : 1)
ET-D95LE7
(2.5 — 4.0 : 1)
ET-D95LE9
(0.8 : 1)
Z o o m l e n s
Fixed
focal
lens
Methods of calculation of Projection distance (L) Unit : mm
L = 16.153 x diagonal of screen(inches) + 252
L = 16.751 x diagonal of screen(inches) + 252
ET-D95LE8
(4.0 — 7.0 : 1)
L = 18.684 x diagonal of screen(inches) + 252
4:3
4:3
16:9
16:9
5:4
5:4
5:4
5:4
5:4
Min. : L = [(diagonal of screen(inches) x 88.587 + 129
Max. : L = [(diagonal of screen(inches) x 155.19
Min. : L = [(diagonal of screen(inches) x 79.374 + 129
Max. : L = [(diagonal of screen(inches) x 139.05
Min. : L = [(diagonal of screen(inches) x 81.279 + 129
Max. : L = [(diagonal of screen(inches) x 142.387
Min. : L = [(diagonal of screen(inches) x 55.328 + 76
Max. : L = [(diagonal of screen(inches) x 88.484 - 1
Min. : L = [(diagonal of screen(inches) x 49.574 + 76
Max. : L = [(diagonal of screen(inches) x 79.282 - 1
Min. : L = [(diagonal of screen(inches) x 50.764 + 76
Max. : L = [(diagonal of screen(inches) x 81.185 - 1
Min. : L = [(diagonal of screen(inches) x 45.378 + 200
Max. : L = [(diagonal of screen(inches) x 55.442 + 204
Min. : L = [(diagonal of screen(inches) x 40.659 + 200
Max. : L = [(diagonal of screen(inches) x 49.676 + 204
Min. : L = [(diagonal of screen(inches) x 41.635 + 200
Max. : L = [(diagonal of screen(inches) x 50.868 + 204
Min. : L = [(diagonal of screen(inches) x 34.137 + 144
Max. : L = [(diagonal of screen(inches) x 45.346 + 131
Min. : L = [(diagonal of screen(inches) x 30.587 + 144
Max. : L = [(diagonal of screen(inches) x 40.63 + 131
Min. : L = [(diagonal of screen(inches) x 31.321 + 144
Max. : L = [(diagonal of screen(inches) x 41.605 + 131