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post #1 of 14 Old 07-03-2019, 02:57 AM - Thread Starter
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Recommendations please...

Hi, I'm in the process of doing some research on projectors and how much I need to spend to achieve what I want.
I'm hoping someone on here can give me some advice or suggestions.

I need to project a 4k animated presentation from 3m distance (preferably ceiling-mounted) onto a wall which is 8m wide 3m high approx.
The space will have subdued lighting (slightly darker than you see in the attached image).
The projector will be running for 8hrs a day, 7 days a week.
It does not need to be interactive or have 3D capability.

Thanks in advance.
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post #2 of 14 Old 07-03-2019, 03:21 AM
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For something like this, a business class laser projector sounds like the right move. I'd look at a benq LK970 which you can still find on benqdirect.com often enough. If not an LK990 is its replacement. You need a lot of lumens. These are 5000-6000 lumens and I'm sure calibration is a non issue for you.

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post #3 of 14 Old 07-03-2019, 04:13 AM - Thread Starter
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Sorry, forgot to mention; I need it to fill the wall as much as possible. So if I need extra lenses, etc. then that's fine...
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post #4 of 14 Old 07-03-2019, 04:19 AM
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Quote:
Originally Posted by COOKHAUS View Post
Sorry, forgot to mention; I need it to fill the wall as much as possible. So if I need extra lenses, etc. then that's fine...
The 20,000+ section *may* be the wrong place for this thread, as I think you can get ideal machines for *much* less than that that may fit your needs.

On the other hand, it entirely depends on what you want to spend too!

Do you have over 20k to spend on this project?
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post #5 of 14 Old 07-03-2019, 04:34 AM - Thread Starter
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Hi, yes I have over 20k to spend if I really need to. But because I have no idea what I need to spend to achieve what I want, I posted this on the other forum too. thanks
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post #6 of 14 Old 07-03-2019, 04:15 PM
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If you need a bright image you need to shoot for something in the 10,000 lumens range with that screen size using a unity gain screen (1.0). Less lumens with a higher gain screen however a higher gain screen could “sparkle” or have “hot sots” especially at 10 feet viewing distance.
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post #7 of 14 Old 07-04-2019, 12:37 AM - Thread Starter
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Thanks for the info guys.
Can anyone here suggest any projectors that I should take a look at? and whether it'll need extra lenses or not.

I need to get the image as large as poss in that 3m height. Preferably in 4k 16:9 ratio from 3m distance.
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post #8 of 14 Old 07-12-2019, 12:41 PM
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Quote:
Originally Posted by COOKHAUS View Post
Thanks for the info guys.
Can anyone here suggest any projectors that I should take a look at? and whether it'll need extra lenses or not.

I need to get the image as large as poss in that 3m height. Preferably in 4k 16:9 ratio from 3m distance.
Hi CookieHaus:

Yes, I can suggest and source a number of new business laser projectors for you with 20,000+ hour life and the appropriate lens for your installation. Are you in the USA? Please send me a PM (private message) and we can discuss the details of your situation. Thanks!

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post #9 of 14 Old 07-12-2019, 02:56 PM
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I’m sure others would be interested your suggestions.

Post your thoughts!
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post #10 of 14 Old 07-14-2019, 08:29 PM
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Is that the actual space in the picture? Looks like a hallway of sorts. Will people standing and blocking the projected image be an issue?
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post #11 of 14 Old 07-18-2019, 01:24 PM
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What is behind the image wall? Is a rear projection situation possible? That could solve the problem of people walking in front of the image. Also, if there is more than 3m behind that wall, it will make it much easier to find a projector with a workable lens....

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post #12 of 14 Old 07-20-2019, 02:46 AM
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Quote:
Originally Posted by COOKHAUS View Post
Sorry, forgot to mention; I need it to fill the wall as much as possible. So if I need extra lenses, etc. then that's fine...
You best use multiple (ultra) short throw projectors side by side, blending the individual images.

Edit: Ah you only need 5.33 meters out of the 8 meters wide. Still a blend would be the obvious choice, but it might be doable with an elbow lens equiped projector. These come in 3000-30000 lumens. Given the amount of ambient light demonstrated, you'll need a lot of light to get any visable image.

Last edited by donaldk; 07-20-2019 at 02:53 AM.
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post #13 of 14 Old 07-26-2019, 08:31 AM
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Originally Posted by donaldk View Post
You best use multiple (ultra) short throw projectors side by side, blending the individual images.

Edit: Ah you only need 5.33 meters out of the 8 meters wide. Still a blend would be the obvious choice, but it might be doable with an elbow lens equiped projector. These come in 3000-30000 lumens. Given the amount of ambient light demonstrated, you'll need a lot of light to get any visable image.
I thought of this also, but it still doesn't solve the problem of people walking in front of the image. Also it doubles the price of the project (or more if you have to add a processor to do the edge blending)... In any case, this is a more difficult / expensive project than I think the OP realized, especially if he HAS to have it in 4K resolution...

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post #14 of 14 Old 07-26-2019, 12:27 PM
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That's where the UST projectors on the ceiling come in. Many the laser phosphor business have blending built in. Not sure if you still need a procesor to split the video, you probably do. Didn't ask Coretronic how it did this with its D40? platform, a few years ago, that were small units.



Coretronic used one of them ...static sceens for the touch.
https://www.coretronic.com/en/news/oZYzDy/detail

Last edited by donaldk; 07-26-2019 at 12:33 PM.
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