Geometric Constructions for Image Formation by A Converging Lens

Ulrich Zürcher; Ulrich Zurcher

doi:10.1088/0143-0807/33/5/1125

Geometric Constructions for Image Formation by A Converging Lens

Ulrich Zürcher
, Ulrich Zurcher

Cleveland State University

Cleveland State University

Research output: Contribution to journal › Article › peer-review

Abstract

Light rays emerge from an object in all directions. In introductory texts, three 'special' rays are selected to draw the image produced by lenses and mirrors. This presentation may suggest to students that these three rays are necessary for the formation of an image. We discuss that the three rays attain their 'special status' from the geometric solution of the equation of a hyperbola x−1 + y−1 = c−1 (mirror/lens equation). The material is suitable for use in introductory courses for science majors.

Original language	American English
Journal	European Journal of Physics
Volume	33
DOIs	https://doi.org/10.1088/0143-0807/33/5/1125
State	Published - Jul 2 2012

Disciplines

Physics

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10.1088/0143-0807/33/5/1125License: CC BY

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AB - Light rays emerge from an object in all directions. In introductory texts, three 'special' rays are selected to draw the image produced by lenses and mirrors. This presentation may suggest to students that these three rays are necessary for the formation of an image. We discuss that the three rays attain their 'special status' from the geometric solution of the equation of a hyperbola x−1 + y−1 = c−1 (mirror/lens equation). The material is suitable for use in introductory courses for science majors.

UR - https://engagedscholarship.csuohio.edu/sciphysics_facpub/273

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M3 - Article

VL - 33

JO - European Journal of Physics

JF - European Journal of Physics

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Geometric Constructions for Image Formation by A Converging Lens

Abstract

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