There was another reply to this post with which I concur. I have worked glass for just about 30 years. Being a Brit I grew up with old church glass.
Stained glass windows as in old churches were worked with three applications. 1. Black tracing and brown matte: fired at 750C were designed to block out light, enhancinh what was left. This was common from the 13th century on. This was fired on the inside side of glass when in a window. 2. The gorgeous golden yellow was a silver nitrate stain, fired at about 1250F, and on the outside of glass for two reasons. One being its durability, the other being a rather smudgy color when light was reflected from it. This was used from the 14th century on. 3. The third application was the colors other than golden yellow, common in the 18th century on, and were the glass enamels. Fired at about 1050 plus or minus a bunch. The best one to throw a color on an inside surface is the golden yellow stain, Colored glass tends to absorb too much light, but can throw a color. I have some notes on my web site on the use of transparent glass versus opaque and thus reflecting glass. Also in the pictures section of my web site I have a lot of non dial stained glass work, and three dials of stained glass, and the three ones that spring out at you are of the transparent type. The sun is on one side, the glass in the middle, with you on the other side. And in the case studies section I have some cube dials on 8x8x17 block columns where the dial plates, 4 on one, 3 on the other, use a reflective opaque irridescant glass. Feel free to download those case studies. And if you have any questions on techniques I used and why, please email me. Simon --- Jack Aubert <[EMAIL PROTECTED]> wrote: > John, > > In your work with stained glass, have you found it > possible to do > anything useful or interesting using colored glass > to project tinted > shadows? I know that sunlight coming into a church > through a stained > glass window can project colored images on the > floor. But from > what I have been able to do with a couple of pieces > of colored glass, > it seems to me that a piece of colored glass in full > sunlight just > makes a shadow and the color is not noticeable. I > don't have a lot > of different colors and shades of glass to > experiment with, though. > > Jack > --------------------------------------------------- > https://lists.uni-koeln.de/mailman/listinfo/sundial > > --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
