Sealed Optical Housing - Ideas?

[andy_con]

at the first uk laser meet mark (fluff) had a unit with sealed optics. said it worked very well

near the top

http://www.laser-man.co.uk/2006/inde...d=51&Itemid=71

[mixedgas]

hepa filters work good and are cheap from home heating uses and from car passenger compartment air filters these days.

Steve

[platinum]

hepa filters work good and are cheap from home heating uses and from car passenger compartment air filters these days.

Steve

What about vacuum cleaners? (the HEPA ones) Just a thought..

-Jonathan

[frank_1257]

adhesives they use suspended silver must be mixed prior to use, but you will get no lower thermal resistance figures anywhere this from a sworn user its the Xhit! Diematt has sent me samples they recommend (weird premix in a hotdog roller or keeping on dry ice from purchase to usage.

On sealed projectors I use a 2 inch or higher fined heatsink and mount laser galvo amps on it the fins are most efficient upward if you can but I have my optical table offset from case bottom and then forced air if possible get supplies in 3 rd space top and again open to convection cooling. In otherwards get a largeheatsink and use as optical table, fins down, if not flat since extruded I have taken to cnc machine shop or auto and have sand or machine milled flat. I hit junkyards big heatsinks are not always easy to find.

artic silver is good this stuff is leading edge if you are working with lots of heat producing equipment and need the best conductivity offered anywhere, check out Diematt.

Drill and Tap aluminum board....so you don't have to plug anything.
Optics and lasers goes on one side PSes and Drivers on other. Fans are cooling lower compartment. Thats basically all to it.
But lasers have to be solidly attached to the board with aluminum spacers and thermo paste. (Arctic Silver for ex.).

[Displaser]

Thanks - a lot of good suggestions here. I like the positive pressure w/filter idea...

Jonathan,

Thought the same - vacuum cleaner HEPA filters should be plentiful, readily available (cheap?) and in a variety of sizes.

Greg

[platinum]

. . .Thought the same - vacuum cleaner HEPA filters should be plentiful, readily available (cheap?) and in a variety of sizes.

Greg

They come in little square sizes too, although mounting up a cylindrical one could be kind of neat too.

I think I originally got this idea from Lasernerd here on PL.

-Jonathan

[Dr Laser]

artic silver is good this stuff is leading edge if you are working with lots of heat producing equipment and need the best conductivity offered anywhere, check out Diemat.

[White-Light]

artic silver is good this stuff is leading edge if you are working with lots of heat producing equipment and need the best conductivity offered anywhere, check out Diemat.

I always use this on my PC processors and its the dogs.

Keeps your processor a couple of degrees cooler than most other compounds. I'd certainly recommend it also.

[mixedgas]

Or just hook a 480$ dyson sweeper to your projector. No replacing the filter.

Sorry, couldnt resist.
I still can't belive people will pay700$ for a sweeper at the home depot.

Steve

[buffo]

Or just hook a 480$ dyson sweeper to your projector. No replacing the filter.
Sorry, couldnt resist.
I still can't belive people will pay700$ for a sweeper at the home depot.

Not to pull this thread too far off topic, but if you think $700 is expensive for a vacuum cleaner, then you've obviously never heard of the "Rainbow" vacuum cleaner. They were $700 back in 1990!!! (Don't know what they'd sell for these days; probably $1500 or more...)

Of course, they were also sold exclusively through multi-level marketing (think Amway), so now you know why they were so expensive...

People bought them though. Probably are *still* buying them...

Adam