From what I understand this can be done 2 ways....
Tilting the field fresnel in a split design...
or
Tilting the screen you are projecting onto...
What are the advantages/disadvantages of each method?
Tilting the field fresnel in a split design...
or
Tilting the screen you are projecting onto...
What are the advantages/disadvantages of each method?
Third method:
acentric fresnel: move up (or down, if your projector is hung up hing) the fresnel after the LCD ...
acentric fresnel: move up (or down, if your projector is hung up hing) the fresnel after the LCD ...
If I choose to tilt the screen I am projectiong onto will this correct for focus issue as well?
How much of a tilt are we talking about at say 9 foot throw with 15 inch diagnol lcd and 330mm standard triplet?
Does this mean I can have the projector low and tilting up say 25 degrees or is that too much? What what I want is to put the projector low enough as to not interfere with viewing. What height should the lens be at in this design?
How much of a tilt are we talking about at say 9 foot throw with 15 inch diagnol lcd and 330mm standard triplet?
Does this mean I can have the projector low and tilting up say 25 degrees or is that too much? What what I want is to put the projector low enough as to not interfere with viewing. What height should the lens be at in this design?
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