NanoSeam dome

The scaffolding is almost completed, and Dave, Joe and PJ are working on the insulation behind the dome. The dome-alition begins Monday! Matthew and I gutted the upper booth today, and placed the rack where the new amps will go.

I promised that I would talk about the new dome, so here is a rendering I did of the dome from the CAD files. Spitz, Inc constructed the original dome 35 years ago, at the same time they built and installed the original star projector.
Unlike the old dome, the new dome will not be a geodesic design, but will instead have horizontal and vertical struts; but of course they will all be tilted at 25 degrees!

Render of the new Nano seam dome

Render of the new Nano seam dome

The skin of the dome will be the most noticeable feature – no seams will be visible. The craftsmen that install the dome will not overlap the sections, they will butt them against each other. Also they will be lining up the hole patterns to minimize the seams’ visibility. In the picture below, the rivet holes are slightly larger than the other holes, but to my eyes that is the only visible artifact.  There is a slight Moire pattern because of the difference between the resolution of the thumbnail image and the actual size. Click the image for a truer idea of what we are getting. Also, this picture was taken from about 12 inches away. From a few feet the seams vanish!

Exteme close up of Nano seam dome

Extreme close up of Nano seam dome

The color will be different also. Instead of that old off-white/yellow color, the new skin will be a very light grey.
It’s reflectivity will be different also, slightly less than the old dome. This will reduce cross reflections, and allow us to run the IMAX lamp brighter than before. This also means there won’t be a bright spot on the screen if you are sitting on the side.

Old dome skin technology on the left - nano seam on the right

Old dome skin technology on the left - nano seam on the right

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