Comments on: short throw projector: 80-inch pic from 3-inches away http://technabob.com/blog/2007/06/13/sanyo-lp-xl50-projector-80-inch-picture-from-3-inches-away/ cool gadgets, games, gizmos and weird science Mon, 01 Dec 2008 19:54:37 +0000 http://wordpress.org/?v=2.6.1 By: hamed abosabaah http://technabob.com/blog/2007/06/13/sanyo-lp-xl50-projector-80-inch-picture-from-3-inches-away/#comment-1738 hamed abosabaah Wed, 24 Oct 2007 11:53:06 +0000 http://technabob.com/blog/2007/06/13/sanyo-lp-xl50-projector-80-inch-picture-from-3-inches-away/#comment-1738 We need more information and the price We need more information and the price

]]> By: Joe Dunfee http://technabob.com/blog/2007/06/13/sanyo-lp-xl50-projector-80-inch-picture-from-3-inches-away/#comment-1735 Joe Dunfee Sun, 17 Jun 2007 20:56:55 +0000 http://technabob.com/blog/2007/06/13/sanyo-lp-xl50-projector-80-inch-picture-from-3-inches-away/#comment-1735 It might be possible that they've been able to adjust for even brightness with optics, or perhaps in the image. But, the illustration is NOT realistic. You can't project blackness... i.e. if you are front projecting an image onto a white surface, the darkest part of the image can't be darker than the white surface under the ambient lighting. I would also imagine they can't use many kinds of projection screens, because those are often designed to optimize the brightness of an image by bouncing the image back with less than a 180 deg spread. Finally, I saw some other pictures of the unit, and it shows the SPACE between the unit and the wall is 8cm. The actual clear space needed from the wall is much greater. It might be possible that they’ve been able to adjust for even brightness with optics, or perhaps in the image. But, the illustration is NOT realistic. You can’t project blackness… i.e. if you are front projecting an image onto a white surface, the darkest part of the image can’t be darker than the white surface under the ambient lighting.

I would also imagine they can’t use many kinds of projection screens, because those are often designed to optimize the brightness of an image by bouncing the image back with less than a 180 deg spread.

Finally, I saw some other pictures of the unit, and it shows the SPACE between the unit and the wall is 8cm. The actual clear space needed from the wall is much greater.

]]> By: technabob http://technabob.com/blog/2007/06/13/sanyo-lp-xl50-projector-80-inch-picture-from-3-inches-away/#comment-1737 technabob Wed, 13 Jun 2007 23:41:49 +0000 http://technabob.com/blog/2007/06/13/sanyo-lp-xl50-projector-80-inch-picture-from-3-inches-away/#comment-1737 Yeah, that's a really good point. You'd think that hotspotting would be a big issue with this design, unless they've worked out some sort of light source system that actually is brighter at the bottom than at the top to compensate for that. It'll be interesting to see one of these up close and personal to see how they deal with that. Yeah, that’s a really good point. You’d think that hotspotting would be a big issue with this design, unless they’ve worked out some sort of light source system that actually is brighter at the bottom than at the top to compensate for that.

It’ll be interesting to see one of these up close and personal to see how they deal with that.

]]> By: TylerSmyler http://technabob.com/blog/2007/06/13/sanyo-lp-xl50-projector-80-inch-picture-from-3-inches-away/#comment-1736 TylerSmyler Wed, 13 Jun 2007 17:33:02 +0000 http://technabob.com/blog/2007/06/13/sanyo-lp-xl50-projector-80-inch-picture-from-3-inches-away/#comment-1736 Hmm how would this affect the light distribution of the image? the image would almost certainly be bringter at the top than the bottom..with the bulb so close to the surface. any thoughts? Hmm how would this affect the light distribution of the image? the image would almost certainly be bringter at the top than the bottom..with the bulb so close to the surface. any thoughts?

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