16. Lens calculator

Calculate screen

Start by selecting a projector and the a lens. Enter the distance between the proje ctor and the screen.
The minimum and maximum screen width is given in red at the bottom line of the calculation panel.
16.4 Calculate a lens

How to calculate a lens

1. Click on the drop down box below Choose projector and sel ect the desired projector. (image 16-2)
The aspect ratio is automatically filled out.
2. Click in the inputfield o f screen width and enter the correct value
Or,
click on the slider and hold down the mouse button and drag the slider until the co rrect screen width is
reached.
3. Click in the input field of projector distance and enter the correct distance
Or,
click on the slider and hold down the mouse button and drag the slider until the correct dista nce is
reached.
4. Click on Calculate.
An overview is given of the lenses for that type of projector. The highlighted line in dicatesthe best lens
for the given circumstances.
Image 16-2
R5976924 PROJECTOR TOOLSET 16/04/2009 225