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Topic: Projector Instant on using simple hard wire switch controls
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Joined: Apr 20, 2015
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Need some advice on a projector.
The project: Video projection into a crystal ball used in a Fortune Teller booth. Total time is 2 minutes, Fortune Teller animatronic talking for 1.5 minutes, and 30 second of crystal ball video at the end.

My problem: Choosing a 300-600 lumen Projector I can hard wire control Desired is a projector I can hard wire to an external control system (just simple switch closures).

I also have RS232 and DMX control, but would like to avoid the additional programming needed to make that work.

I just need a projector I can fully externally control and not have a cool down delay that may screw up the show. My video source is a short and simple composite video from a media player.

Any suggestions on a projector to use in this coin-operated kiosk?
I expect I will have to go with the RS232 control in the end.
[Edited by Danimal on Apr 21, 2015 at 4:34 PM]
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You have some extremely large issues from what I am gathering with your desires.

Most notably is that projectors don't have instant-on lamps. They take 45 seconds or more to power on, and typically have two minute cool down cycles. They aren't designed to be powered on/off like a light bulb, and doing so will seriously damage the lamp and perhaps the internal electronics very quickly.

The better solution would be to 'blank' the image, then unblank it when you want it on. The lamp would never power off, so it would be instantly available.

But, the lamp would be on as long as the system was in use, no matter how long that was.

What led you to the decision to know you needed a 3,000 lumen projector? Did you test different projectors with your setup or are you just guessing or what?

I'm not sure if that's accurate or if it to little or to much.

What size image are you trying to project?
What distance does the projector need to be (you mentioned a .9 throw)

I have ZERO doubt that you will use RS232 to control this no matter what. Projectors are designed with RS232 to handle these types of unique situations. It's exactly why it is there. A hard switch can be used to the control system through an I/O to blank/unblank the projector, but there is no projector on the market that I am aware of which can be set to power on/off or blank/unblank directly from a switch and do so 'instantly'.

Oh, and if you really can get by with a lot less light, then you may want to look at the LG PF1500 which is about a 1,000 lumen LED projector. It can turn on/off relatively quickly but may require Ethernet control.
AV Integrated - Theater, whole house audio, and technology consultation during the build and installation process in the Washington, DC metropolitan area.
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I need to correct my initial post to 300 Lumens. I've tested with a 10, 100, and a 600 lumen. The 600 gives me the desired brightness, 100 was marginal. 300 lumen is my guess.

My current projectors sits 36" from the frosted 8" globe they project into. The bottom opening of the globe 4.5". My video image size is trimmed down using video editing software to just frame in a small circle of 3 to 4" when it finally hits the screen, from the circle out is black.

I plan to have external constant cooling fans running on the projector this would be 24/7 since it is always plugged in.

My 600 Lumen Sharp RS232 controls are quite extensive in terms of configuration but I'm have trouble with exact projection control while avoiding various onscreen messages.

In my attached picture My first attempt was to rebuild the projector into the neck of a small table, then project the image straight up using a mirror inside the globe to place the image at a better viewed angle from inside the globe. In my darkened shop all was ok. Not for a public lit area, the 100 lumen was poor to marginal. So now I'm not using the small table but still using the pictured globe sitting flat a table with a 4" hold in the bottom. My 600 lumen Sharp sits 36" below the table and projects at a ~45 deg angle through the hole into the globe and seems more than bright enough. Hoping a cooler 300 lumen may work.

My Teller will have 10 different 2 minute routines, 5 of which use the projector. So I can have some controlled cooling time. But during busy times it will get played over and over non-stop.

The external iris blank will be an option I will need to consider. I will look at the LG PF1500.

I really have to do a trial by error with my testing and setup. I'm using an Arduino controller with 1 comm port using RS232 control to communicate to my servo controller(you can see the head in the picture background). I need to upgrade the Arduino so I can add an additional comm port if I do pursue the RS232 projector option.

Thanks for the suggestion. Not sure but hopeful that a 300-600 lumen projector may have a better control features.
[Edited by Danimal on Apr 21, 2015 at 6:20 PM]

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The 1st version of the Crystal ball

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What about this option. With any projector.
Place the projector into an "On" state at power up
I provide additional cooling with external fans, filter and ducting
I take over light control externally (light power controlled by my independent system)

I can then avoid internally controlled cool down time sequences (Typically 90 seconds)

Since I'm providing constant cooling I shouldn't harm the projector, By controlling the light, I'm removing the primary heat source.

My projector delay is now reduced to the time it takes to power up the LCD side of the unit. Can just leave the LCD side on and control when the video input is started.

I'm looking at FAVI RioHD-LED-3T Projector on Amazon it's listed as a 1000 lumen with a built in media player the price is cheap enough for me to not cringe to bad when I tear it apart and rebuild it to fit what I need.

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Fortune Teller Animatronic

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The FAVI projectors err to the lower end of quality. You should not expect acceptable performance from them.

Quality brands, Sharp, LG, Panasonic, Optoma, BenQ, etc. are the way to go if you want acceptable performance.

LG delivering a quality HD product is nice, but they actually have several products, as does Optoma and some other major brands in the LED arena which make a lot of sense.

Avoid the cheapest.

ANY company which doesn't have a decent website, or standard distribution.

About the only exception to this may be AAXA which has worked hard to deliver quality product over and over. They aren't as solid as some of other bigger brands, but have some decent models.

But, a model like this may work well if you don't need the higher 1080p resolution...

http://www.projectorcentral.com/LG-PA77U.htm

Rated at 30,000 hours, you could leave it on (potentially) for almost four years (24/7) before it would be dead.

I am looking at this list...
http://www.projectorcentral.com/projectors.cfm?g=1&hide=0&st=1&mfg=&p=359&p=1200&w=&r=&br=500&br=5000&ll=<g=2&t=&db=&dt=&c=&ar=&dvi=&wr=&pjl=&pjw=&pjh=&td=&is=&i=d&tr=&oop=1&sort=%24&sz=15

The Acer near the top would be an acceptable manufacturer, but always remember... advertised lumens rarely match up to real world lumens.
AV Integrated - Theater, whole house audio, and technology consultation during the build and installation process in the Washington, DC metropolitan area.