6Q10.85 - Holograph with Magnifier

See paragraph one in the procedure section.
See paragraph two in the procedure section.
See paragraph three in the procedure section.
Code Number:
Demo Title:
Holograph with Magnifier
Images Produced by Wave Interference
Area of Study:
Cole-Parmer Hologram, Holographic telephone pictures in frame, magnifier and pocket watch hologram.

The Cole-Parmer hologram shows a circuit board with a magnifier over the board.  As you move your head over the board the magnifier moves with you. 

The telephone hologram needs to be illuminated by a diffuse laser beam.  Again, you will see a magnifier looking at the keys of a telephone. The magnifier will move as you move. 

The magnifier over the pocket watch is just another good version of these holograms.

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.