|
|
|
Code Number: 6A70.28
Demo Title: Binoculars
Condition: Good
Principle: Lens Systems and Focal Lengths
Area of Study: Optics
Equipment:
Binoculars and Optic Wonder.
Procedure:
The specifications on the binoculars are these, 10 Power, 50mm objective lenses, Field of View: 288 ft. at 1000 yds., and Bar Fast Focus. One of the binoculars has been taken apart so that you can see the prisms and their arrangement inside the binoculars.
The optics wonder is just a tubeless binocular that can be folded down for carrying.
References:
- Richard Didsburry, "Binocular Vision - A Simple Demonstration", TPT Vol. 18, #8, Nov. 1980, p. 595, also A Potpourri of Physics Teaching Ideas - Optics and Waves, p. 214.
- Howard N. Maxwell, "A Demonstration Monocular", AJP, Vol. 20, #5, May 1952, p. 310.
- Kevin Dupzyk and Tom McLellan, "Binoculars", Popular Mechanics, Vol. 196, #5, July/August 2019, p. 16 - 17.
- T. D. Rossing and C. J. Chiaverina, "4.10, Telescopes and Microscopes", Light Science, Physics and Visual Arts, p. 95.
- The Queen Catalogues Vol. I, Catalogue of Meteorological Instruments, p. 4.