Hi english is not my prime language.

I has a collection of old Episkop and Epidiaskop mainly german vintage, optics raging from 800 mm to 320 mm. Plenty of mirrors and HQI for 250 and 1000 Watt. Plus I know what to beware of.

I took apart a small digital picture frame and now has the display panel avaible, secured the cable with silicon rubber, and is planning to try out a configuration where I use an Episkop but with a HQI lamp under and not over the projected item, in this case the display panel.

I recon the Episkop in this way will work as a slide projector, -- but my worry are heat from the 1000 Watt philips Mercury lamp -- I boought a second hand one, taken from a more modern high performance Episkop, a shame to take such apart but now I got it cheap, ---- I plan to replace the bottom glass in the Episkop, with a double glass one same size, that will be water filled, ---- Please oppinion about that is welcome.


The Green one is the one I plan to use.



The HQI lamp with ballast.



The digital picture frame taken apart and cable secured.

Now the danger is the heat, but if I build a 15 mm. high glass box with entry and outlet tubes for running water and replace the bottom glass in the Episkop with that, then I think I got the best heat filter possible, --- oppinion please.....

Sorry forgot to mention the optic in that one is a 420 mm, proberly the best of the 400 mm. range ever made. It is class over the tradisional Zeiss 400 mm projector lens.
Meyer-Gorlitz Epidon 1:3,6, 420 mm. Tube 12 Cm some light collector.

Does your digital photo frame take video inputs? I haven't seen ones that do, but you never know.

Water cooling is interesting. Might be more than is needed, but ought to be very efficient, so long as you can keep bubbles out of the system.