The essential heart of any kaleidoscope is the mirror assembly. In an earlier post we discussed the desirability of using front surface mirrors. In this post, the focus will be on mirror configuration.
Probably the most common mirror assembly is a three-mirror assembly, where the mirrors are equal-sized and arranged to form a triangle with sides of equal length and internal angles that are all 60 degrees. From there, the configuration is almost limitless and dependent on the artistic design of the artist/craftsman who is fashioning the 'scope. Mirror width and angle can be varied to meet most any design.
From this most common arrangement, one can find kaleidoscopes with two-mirror assemblies, four-mirror assemblies, twin-two mirror assemblies, and, probably, other arrangements, although I am not aware of these. The different arrangements, sizes, angles produce vastly different images to delight the viewer.
Probably the best description of mirror configuration with some excellent diagrams and pictures of the resulting "views" is the Kaleidoscope Collector web site at:
As you look at various kaleidoscopes be sure an inquire as to the number and arrangement of the mirrors. Most of my scopes use the common three-mirror assembly with the mirrors at 60 degree angles, but occasionally I do use other techniques -- primarily the two-mirror assembly.
To see all of my work go to http://www.wrightmade.com
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