6A65.67 - Dragonfly Lens

See paragraph one in the procedure section.
Code Number:
6A65.67
Demo Title:
Dragonfly Lens
Condition:
Good
Principle:
Multifaceted Lenses.
Area of Study:
Optics
Equipment:
Dragonfly glasses, dragonfly lens tubes.
Procedure:

Look through the lenses at any object to see a simulation of images that some insects see.  Also notice that when looking at the person wearing the glasses their eyeball is highly distorted.

References:
  • George M. Hopkins, "Light", Experimental Science, p. 203.
  • Jodi and Roy McCullough, "Introduction to Lenses with a Multiviewer", The Role of Toys in Teaching Physics", p. 3.26.
  • Jearl Walker, "6.117, Protuberances on Insect Eyes and Stealth Aircraft", The Flying Circus of Physics Ed. 2, p. 291.
  • #70, "Bug-Eyed", Janice VanCleave's 203 Icy, Freezing, Frosty, Cool, and Wild Experiments.

Disclaimer: These demonstrations are provided only for illustrative use by persons affiliated with The University of Iowa and only under the direction of a trained instructor or physicist.  The University of Iowa is not responsible for demonstrations performed by those using their own equipment or who choose to use this reference material for their own purpose.  The demonstrations included here are within the public domain and can be found in materials contained in libraries, bookstores, and through electronic sources.  Performing all or any portion of any of these demonstrations, with or without revisions not depicted here entails inherent risks.  These risks include, without limitation, bodily injury (and possibly death), including risks to health that may be temporary or permanent and that may exacerbate a pre-existing medical condition; and property loss or damage.  Anyone performing any part of these demonstrations, even with revisions, knowingly and voluntarily assumes all risks associated with them.