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Kaleidoscopes

In 1816, the was invented by Scottish scientist, Sir , and patented by him in 1817 (GB 4136).

David Brewster named his invention after the Greek words, kalos or beautiful, eidos or form, and scopos or watcher. So kaleidoscope means the beautiful form watcher.

Brewster’s kaleidoscope was a tube containing loose pieces of colored glass and other pretty objects, reflected by mirrors or glass lenses set at angles, that created patterns when viewed through the end of the tube.

How to Make a Kaleidoscope

Later in the early 1870’s, an American called improved upon the kaleidoscope and started the kaleidoscope fad. was granted patents in 1873 amd 1874 related to improvements in kaleidoscopes, kaleidoscope boxes, objects for kaleidoscopes (US 143,271), and kaleidoscope stands. was the first person to mass manufacturer his “parlor” kaleidoscope in America.

How They Work
The kaleidoscope creates reflections of reflections of a direct view of the objects at the end. The image will be symmetrical if the angle is an even divider of 360 degrees. A set at 60 degrees will generate a pattern of six regular sectors. A angle at 45 degrees will make eight equal sectors, and an angle of 30 degrees will make twelve. The lines and colors of simple shapes are multiplied by the mirrors into a visually stimulating vortex.

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