I can see the wire across the arc tube acts like striking aid antenna

Nice lamp

Good lamps these, have a few myself. Have a power ball to.

Yes, interesting starting aid. Just a bit of twisted wired wrapped across the discharge tube. I like how the arc tube is fixed into the outer housing. It does seem a lot sturdier than the normal design of RX7s lamps.

Test it and see how shorter it takes for it to hot re-strike when compared to the older versions. http://www.youtube.com/watch?v=4w_mH0zjNDw

I have a 70w version and I am fascinated to see how the arc tube is actually fused to the outer bulb at the extremities of the seals. The assembly technique for these is vastly different from the standard type of HQI-TS. The 70w has no starting aids, least the one I have does not.
I know that you were one of the first members to post a picture of this new design Ahmet.

Looking at it, it seems that the arc tube is made first with very long (dual) seals then a larger piece of silica tubing is placed over it and the ends heat softened and "turned down" (like on a potter's wheel) to come into contact with the centre part of the long arc tube seal and fuse to it. The only flaw in this assumption is how is the vacuum created in the outer?

I know that high powered carbon dioxide lasers (down in the middle infra red at about 8000nm) produce radiation which will not pass through fused silica. (i.e fused silica is opaque to 8000nm I.R. radiation) so these lasers can be used to soften the fused silica rather than the traditional acetylene torch flame. So this whole "shrink turning" process for the outer bulb could be done in a vacuum chamber, (by shining the CO2 laser in there) thus there is no need for an exhaust tip in the outer bulb.

Does the arc tube have an exhaust tip? I recall my 70w one has no arc tube exhaust tip either. This raises interesting questions as to just how the arc tube was dosed with mercury, argon and the halides. I recko it is an extension of the outer bulb process still using a CO2 laser but in some sort of hotbox rather than a vacuum chamber.

Mine also has a "floating" ZrAl getter, on a wire simply embedded in the seal. Not sure how they did that!

This is a very, very clever design and a lot of thought has gone into it. It shows that the team at Osram's Spandau plant are definitely leaders, not followers!

That's interesting, Andrew. I never noticed that until you mentioned how the sealing process done