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Binocular Optics and Mechanics

Part of the Patrick Moore’s Practical Astronomy Series book series (PATRICKMOORE)

Abstract

There are three main parts to a binocular’s optical system:
  1. Objective lens assembly. Its function is to gather light from the object and form an image at the image plane.

     
  2. Eyepiece lens assembly. Its function is to examine the image at the image plane, rendering it visible to the observer’s eyes.

     
  3. Image orientation correction. In modern binoculars this is usually a prism assembly. In large binoculars this may also require the eyepieces to be at 45- or 90- degree angles to the main optical tube. Binoculars are usually classified by the type of prism assembly they use (e.g., “Porro prism binocular” or “roof prism binocular”) (Figure 2.1).

     

Keywords

Spherical Aberration Chromatic Aberration Aperture Stop Exit Pupil Uncoated Glass 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Bibliography

  1. Fischer, R.E., and Tadic-Galeb, B. Optical System Design. New York: McGraw-Hill, 2000.Google Scholar
  2. Kunming Optical Instrument Co. Ltd. http://www.binocularschina.com/.Google Scholar
  3. Lombry, T. http://www.astrosurf.com/lombry/reports-coating.htm.Google Scholar
  4. The Naval Education and Training Program Development Centre. Basic Optics and Optical Instruments. New York: Dover, 1997.Google Scholar
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  6. Tonkin, Stephen F. AstroFAQs. London: Springer-Verlag, 2000.Google Scholar

Copyright information

© Springer-Verlag London Limited 2007

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