- #1
rotor_hed80
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Hi all
Not sure if I posted in the right spot but my question is in regards to optics and projection. To make a little less confusing I will try to explain my dilemma.
I have a triplet lens out of an old crt projector where the rear focal point is about 10mm form the rear lens surface. So to use for an lcd projector i would have to use an LCD the same size or smaller than the lens diameter.
My questions are.
If I want to use a larger lcd panel what type of lens would I put between it and the existing triplet to essentially shrink the image size so that it would act like a smaller lcd at the focal point?
And would the triplet correct the chromatic aberration from the new lens inserted?
Thanks in advance
Christian
Not sure if I posted in the right spot but my question is in regards to optics and projection. To make a little less confusing I will try to explain my dilemma.
I have a triplet lens out of an old crt projector where the rear focal point is about 10mm form the rear lens surface. So to use for an lcd projector i would have to use an LCD the same size or smaller than the lens diameter.
My questions are.
If I want to use a larger lcd panel what type of lens would I put between it and the existing triplet to essentially shrink the image size so that it would act like a smaller lcd at the focal point?
And would the triplet correct the chromatic aberration from the new lens inserted?
Thanks in advance
Christian