Questions You Should Know about LED Projector Light Supplier

I’ve never done anything with projectors, but I have been tasked with researching this, and so far my research has mostly suggested it is not a possible solution in the situation. I figured I would ask the community before telling my boss it can’t be done, so if anyone is more familiar with projection systems than I, please let me know what you think.

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Here’s the situation:

Well lit showroom with lots of windows and daylight (no direct sunlight). The screen would be a section of wall, which sits just below some diffuse fluorescent lights. We’re looking at either 16:9 or 16:10 ratios, with a size of approximately 16 feet wide (192 inches) or slightly wider; height is the limiting factor at approximately 10 feet. The projector would mount to a drop ceiling, and throw distance is pretty flexible; in my research, I’ve read that a shorter throw is better for situations with high ambient light. This would most likely be projecting static images, so certain factors like resolution are less important than they would be with video, but management wants a crisp, clear image with good saturation.

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Additional reading:
LED Tube Lights Guide | What You Need to Know

Here’s the kicker: management seems to think they can get a workable projector for around $1500; I told them it would probably be more in the $5000 range to do it right, but that was mostly a guess; they responded that, if it was that expensive, they wouldn’t want to do it. After entering this info into this projection calculator , the only suggestion was the Titan Super Quad 1080p 3D, which looks like absolute overkill and wouldn’t work for a number of reasons (mainly price and the fact it weighs ~40kg, which would be a nightmare to mount).

Considering the price range (I doubt management would spend more than ~$3000) and tricky, well lit environment, does this seem remotely plausible? Should I even keep researching, or am I wasting my time?

If color quality is not a big concern, I suggest that you stay with an LED package with
- a single die per package
- About 5 watts capable each
- About 500ma - 1,000 ma capable each
- cool white
- Already mounted onto a "star" PCB mount ( sort of an industry standard, easy to use mount method)

This will make the mounting and installation easier.

One of the reasons to go with "multiple, lower powered LEDs" instead of "one big one" are the particular optics of that setup. The table acts like both a ground glass and fresnel lens, focusing the light down to the head. The design sort of assumes that the light is appearing to come from the underside evenly and from a long distance (infinite focus). At least I think this is the concept. Perhaps it would be good to "test" this assumption by placing a few MR16 size lamps in there and see what happens.

Here are a few examples:

The Lumileds K2 and K2 TFFC (web page)

The ledsupply.com web page

Cree's web page

You can spend a very large amount of time finding the "optimum" solution for power vs cost, etc, and then will find out you are experimenting just like all of us. That is 1/2 of the fun. I know more about the Lumileds products for historical reasons, and others know more about the Cree products or other brands. Frankly, any of them can be "made" to work.

The decision on the exact LED and LED brand itself gets into personal opinion. I think most people here would be comfortable to recommned either Cree or Lumileds as brands, and both make very good quality parts that will work. There are other good LED options out there as well.If color quality is not a big concern, I suggest that you stay with an LED package with- a single die per package- About 5 watts capable each- About 500ma - 1,000 ma capable each- cool white- Already mounted onto a "star" PCB mount ( sort of an industry standard, easy to use mount method)This will make the mounting and installation easier.One of the reasons to go with "multiple, lower powered LEDs" instead of "one big one" are the particular optics of that setup. The table acts like both a ground glass and fresnel lens, focusing the light down to the head. The design sort of assumes that the light is appearing to come from the underside evenly and from a long distance (infinite focus). At least I think this is the concept. Perhaps it would be good to "test" this assumption by placing a few MR16 size lamps in there and see what happens.Here are a few examples:The Lumileds K2 and K2 TFFC (web page) http://www.philipslumileds.com/products/luxeon/luxeonK2 The ledsupply.com web page http://ledsupply.com/ Cree's web page http://www.cree.com/products/xlamp7090_xre.asp You can spend a very large amount of time finding the "optimum" solution for power vs cost, etc, and then will find out you are experimenting just like all of us. That is 1/2 of the fun. I know more about the Lumileds products for historical reasons, and others know more about the Cree products or other brands. Frankly, any of them can be "made" to work.

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