[AntoSlein]

I'm looking to buy a projector that can project an image onto a non-flat surface without distortion i.e. wall with pictures or indentations. Is there any projector that can do this without having to manually adjust it and if so what is the name and model? Thanks for your help

[LincolnSpector]

AntoSlein, on 02 September 2012 - 06:48 AM, said:

I'm looking to buy a projector that can project an image onto a non-flat surface without distortion i.e. wall with pictures or indentations. Is there any projector that can do this without having to manually adjust it and if so what is the name and model? Thanks for your help

No. All a projector does is shoot light to be reflected off of an object. The nature of the object will inevitably effect how the light bounces off.

You need something flat, reflective, and white. A screen. A white wall will also work, but not as well.

I suppose an extremely bright bulb in the projector would remove some of the issues of a non-reflective, non-white wall, but not by much. And it would be cheaper to just buy a regular projector and a roll-up screen.

Lincoln

[AntoSlein]

LincolnSpector, on 02 September 2012 - 10:36 AM, said:

AntoSlein, on 02 September 2012 - 06:48 AM, said:

I'm looking to buy a projector that can project an image onto a non-flat surface without distortion i.e. wall with pictures or indentations. Is there any projector that can do this without having to manually adjust it and if so what is the name and model? Thanks for your help

No. All a projector does is shoot light to be reflected off of an object. The nature of the object will inevitably effect how the light bounces off.

You need something flat, reflective, and white. A screen. A white wall will also work, but not as well.

I suppose an extremely bright bulb in the projector would remove some of the issues of a non-reflective, non-white wall, but not by much. And it would be cheaper to just buy a regular projector and a roll-up screen.

Lincoln

Thanks very much for your help!

[mjd420nova]

I once installed a projectionsystem that used a wall painted with the glass bead coating from a theather screen. It was very a very sharp display. Changes in focus with objects in the way creates a sometimes dizzying effect. Persons moving through the projection field can alter focus. Auto focus is suggested to display the sharpest image on the largest, unobstructed field and leave it or lock it.

[waldojim]

LincolnSpector, on 02 September 2012 - 10:36 AM, said:

AntoSlein, on 02 September 2012 - 06:48 AM, said:

I'm looking to buy a projector that can project an image onto a non-flat surface without distortion i.e. wall with pictures or indentations. Is there any projector that can do this without having to manually adjust it and if so what is the name and model? Thanks for your help

No. All a projector does is shoot light to be reflected off of an object. The nature of the object will inevitably effect how the light bounces off.

You need something flat, reflective, and white. A screen. A white wall will also work, but not as well.

I suppose an extremely bright bulb in the projector would remove some of the issues of a non-reflective, non-white wall, but not by much. And it would be cheaper to just buy a regular projector and a roll-up screen.

Lincoln

For what it is worth, most high end projection screens many shades of... well, not white. They also sell a silver paint so you can use your wall as a decent projection screen.

This post has been edited by waldojim: 02 September 2012 - 05:30 PM

[AntoSlein]

mjd420nova, on 02 September 2012 - 03:05 PM, said:

I once installed a projectionsystem that used a wall painted with the glass bead coating from a theather screen. It was very a very sharp display. Changes in focus with objects in the way creates a sometimes dizzying effect. Persons moving through the projection field can alter focus. Auto focus is suggested to display the sharpest image on the largest, unobstructed field and leave it or lock it.

So are you saying there are projectors that do have an auto focus function?

[smax013]

You can project to a non-screen like (aka white) surface and still kind of watch stuff, but it is still highly dependent on the surface.

If I put my screen, I have orangish brick (part of a fireplace wall) behind the screen. When the room is dark (i.e. at night), the picture is still reasonably good enough to basically see what is going on, but I would not want to sit there any watch a movie like that.

[smax013]

AntoSlein, on 03 September 2012 - 04:36 AM, said:

So are you saying there are projectors that do have an auto focus function?

There might be (I really don't know...I have not ever encounter one), but it would not really help in situation described in your first post. Auto focus would mainly help with a "moving target" so to speak. For a "distorted" wall like you describe, you are still going to get a distorted image with auto-focus. As Lincoln mentioned, it just the nature of light.

[smax013]

LincolnSpector, on 02 September 2012 - 10:36 AM, said:

You need something flat, reflective, and white. A screen. A white wall will also work, but not as well.

I believe that there are paints that you can get that would give a wall a "screen like" surface.