Hello,
I looked thru alot of the older information about retrofit of commercial LCD projectors. The light engines seem to be very efficient in these units, therefore might be a good choice for building a high output projector.
I'm thinking about looking into ripping apart one, ditching the ballast, circumventing the "light on" signals (maybe there are test modes?), and then trying to use a OSRAM MSR-1200 or *maybe* HMI 2500 watt bulb. I wan't crazy output, outdoor projectable.
I would use squirrel cage blowers to move hundreds of CFM over the lamp and optical assembly, but have to be careful because you don't want to load the optics path / components with dust.
Maybe move the entire thing into a bigger box, I have to make sure the light source isn't visible because it is a hazard as the arc is so bright.
Has anyone successfully replaced the illumination source of a projector?
The lens assembly might also be an issue I'm looking to go 15' to 20' wide, the stock lenses probably won't focus to that.
The short arc of the MSR-1200 ($140 or so) and the HMI 2500 ($300 each or so) should allow crazy levels of output, assuming I can actually find ballasts. Then of course, trying to get the point light source close enough to where the other bulb's was...
Any thoughts? Has anyone tried this? I'm not looking to go halogen, looking to up the output. 20' wide display.
I looked thru alot of the older information about retrofit of commercial LCD projectors. The light engines seem to be very efficient in these units, therefore might be a good choice for building a high output projector.
I'm thinking about looking into ripping apart one, ditching the ballast, circumventing the "light on" signals (maybe there are test modes?), and then trying to use a OSRAM MSR-1200 or *maybe* HMI 2500 watt bulb. I wan't crazy output, outdoor projectable.
I would use squirrel cage blowers to move hundreds of CFM over the lamp and optical assembly, but have to be careful because you don't want to load the optics path / components with dust.
Maybe move the entire thing into a bigger box, I have to make sure the light source isn't visible because it is a hazard as the arc is so bright.
Has anyone successfully replaced the illumination source of a projector?
The lens assembly might also be an issue I'm looking to go 15' to 20' wide, the stock lenses probably won't focus to that.
The short arc of the MSR-1200 ($140 or so) and the HMI 2500 ($300 each or so) should allow crazy levels of output, assuming I can actually find ballasts. Then of course, trying to get the point light source close enough to where the other bulb's was...
Any thoughts? Has anyone tried this? I'm not looking to go halogen, looking to up the output. 20' wide display.
I have a 640x480 Polaroid 105 projector. I think the lamp is dead. The only thing it takes to get the unit to come up without the lamp is simply closing a switch that the lamp cartdrige triggers when it's crammed in there.
This weekend I'm going to try backing the projector up to a MSR-400 lamp being driven by Intellabeam electronics. I will post pictures of my findings.
This weekend I'm going to try backing the projector up to a MSR-400 lamp being driven by Intellabeam electronics. I will post pictures of my findings.
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