What causes more washout? Light hitting the screen, or light rays crossing projector's light beam path? - AVS Forum | Home Theater Discussions And Reviews
Forum Jump: 
Thread Tools
post #1 of 3 Old 01-05-2013, 03:57 PM - Thread Starter
Senior Member
Singh007's Avatar
Join Date: Dec 2008
Posts: 231
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 12
Kind of a strangely worded question. If I mount a pj at the back of a room, and there are a few potlights beside it, does the light that the pot light spreads in to the room effect washout, even though the lights near the screen are all turned off? In other words: if the projected light from a PJ is 'cutting' through ambient light through the room, does that effect picture quality? Or is it just about what light hits the screen?
Singh007 is offline  
Sponsored Links
post #2 of 3 Old 01-05-2013, 06:38 PM
AVS Forum Special Member
Jim McC's Avatar
Join Date: Feb 2004
Location: Oconomowoc, WI.
Posts: 6,031
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 157 Post(s)
Liked: 64
ANY light in the room will affect the image. The worst kind of light is where it shines right on the screen. Make sure to use dimmers on all the switches.
Jim McC is online now  
post #3 of 3 Old 01-05-2013, 09:00 PM
AVS Forum Special Member
airscapes's Avatar
Join Date: Dec 2008
Location: Philadelphia
Posts: 5,580
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 371 Post(s)
Liked: 297
Here's the issue.
Screen is white.
What makes the parts of the image that need to be black, black?
The absence of light is the only thing that makes black things black.
Now with whatever light you have on in the room were ever it is, look at the screen without the projector on. What you see is the blackest black you will have in any image.
The other problem is that when the projector is on and the screen is all lit up, if the walls are not a very dark color, all the light from the screen image reflects back off the white walls, ceiling and floor just like having lights on in the room..
Hope that helps!

Planar PD8150 with DC4 DMD paired with a Dalite HP 2.8 110"

airscapes is online now  
Sponsored Links
Reply General Home Theater & Media/Game Rooms

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off