Topic: Best room lighting for projector use.
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Soundman50member
Joined: May 11,
Posts: 3
I work on the technical department of my church. I is said by a member of the team that projecting immages through a space lit by halogen lights is not advisable because halogen light rays negitivly
affect the light emitting from the projegtor. It is his feeling that for best projection quality the room should be lit with fluoresctnt lights. Is there any truth in this?
member
Joined: Jun 11,
Posts: 1,740
I work on the technical department of my church. I is said by a member of the team that projecting immages through a space lit by halogen lights is not advisable because halogen light rays negitivly
affect the light emitting from the projegtor. It is his feeling that for best projection quality the room should be lit with fluoresctnt lights. Is there any truth in this?
ANY light hitting the screen is going to have a negative impact on the image. The source does not matter. If you can't (or won't) control the ambient light, you'll never be happy with the image.How many movies have you gone to see where they left the lights on in the theater? Have you stayed long enough after a movie, when the credits are rolling and the lights come on, to see the affect the lights have in the image?At your church, look at the screen or area where the screen will go, in the lighting conditions you expect during projection. That is as DARK as the image will get. Projectors cannot create darkness.As for your associate's claims, I've never heard that.
Soundman50member
Joined: May 11,
Posts: 3
Thanks for your comments. We all know that if light falls on the screen the picture will quality will be compromised. What I need to know is what effect does different types of lighting in the space through which the light from the projector travels will have on the picture. To put it another way. If you have halogen down lights that do not hit the screen but light the area between the projector and the screen,will the light from the projector have trouble passing through the halogen lit area?
I hope I am not making things more complicated.
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AV_Integratedmoderator
Joined: Mar 28,
Posts: 13,311
Light does not interact in that manner. Lights you have on in the room DO fall on the screen unless the room is painted flat black and it is a light soaking material (velvet). You will be dealing with reflections from rims of lights and you will be dealing with the light bouncing off the surfaces in the room.That said, directional light, away from the projection screen is the preferred way to have lights on in any room that needs some lighting.I have an example of the effects of ambient light within a space right here:Now, it's important to understand that in any board room, you should be specifying a projector which will work decently under 'normal' flourescent lighting conditions. This means, the minimum spec for the projector should be 80 lumens per square foot of screen space.
AV Integrated - Theater, whole house audio, and technology consultation during the build and installation process in the Washington, DC metropolitan area.Soundman50member
Joined: May 11,
Posts: 3
Thanks AV_Integrated
The information you posted is clear.I past the information to my
associate. This puts an end to issue.
THANKS AGAIN.
Soundman50
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