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Full Version: Fresnel size with respect to LCD
Lumenlab > LLAVS: Lumenlab AVS > Projector Builder > DIY Video Projector Design
gep
My pro lens kit has been shipped yesterday, so I am preparing my box to be ready for them when they arrive. I am going to be using a 15" LCD, but may upgrade the size later. I plan to keep the fresnels their original size (16 x 17 inches). Is there a problem with keeping them that much larger than the LCD? Or should I design some sort of mask for the outer edges of the fresnels?
Also, I'm assuming I need to mount my LCD so it is centered to the center of each fresnel, correct?
If I opt to cut these down, would it take 4 cuts to do it (taking an equal amount off each edge to preserve the center of the lens)?
pagercam
QUOTE (gep @ Jan 19 2006, 07:41 PM) *
My pro lens kit has been shipped yesterday, so I am preparing my box to be ready for them when they arrive. I am going to be using a 15" LCD, but may upgrade the size later. I plan to keep the fresnels their original size (16 x 17 inches). Is there a problem with keeping them that much larger than the LCD? Or should I design some sort of mask for the outer edges of the fresnels?
Also, I'm assuming I need to mount my LCD so it is centered to the center of each fresnel, correct?
If I opt to cut these down, would it take 4 cuts to do it (taking an equal amount off each edge to preserve the center of the lens)?

No, need to block light somehow, yes, yes
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