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We want to diffract sunlight, or theater/stage white lights, into a nice rainbow pattern on the floor, from about 10-15' height above.

Does anybody know good supply sources for large prisms, or does a special diffraction gradient sheet work as well?

Thanks in advance for any feedback.

--Jeff--

Jeff Rosenblatt
Director, Science City & Gottlieb Planetarium
Kansas City's Science Center

Union Station Kansas City, Inc.
30 W. Pershing Rd.  Suite 400
Kansas City, MO  64108
Office:  816-460-2218
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