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DIY LCD PROJECTOR
This link below goes to diy lcd projector diagram & calculation by Gunawan W.
This calculation using Microsoft-Excel.
The main purpose is to find correct lenses for certain condition based on my experiment I did.
After complete upload, save it first and you're ready to make calculation.
PROJECTOR DIAGRAM & CALCULATION using 1 lens and 2 fresnel panel (split).
MULTI LENSES FOCAL LENGTH CALCULATION
This is my IDEAS with reflector:
ALTERNATIVE TYPE OF REFLECTOR
This is my thinking about fresnel panel & reflector:
This is my thinking about lamp array: