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Optical Engineering

Putting the Knife Edge to the Eye
Author(s): R. C. Mohrman; H. A. Knoll
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Paper Abstract

The optical systems of an electro-optical instrument which measures the refractive error of human eyes are described. The analog printout enables one to read off the refractive correction as sphere, cylinder, and cylinder axis. The principle involved is a variation of the Foucault knife-edge test. Validation studies are summarized and various applications are briefly mentioned.

Paper Details

Date Published: 1 August 1976
PDF: 4 pages
Opt. Eng. 15(4) doi: 10.1117/12.7971978
Published in: Optical Engineering Volume 15, Issue 4
Show Author Affiliations
R. C. Mohrman, Bausch & Lomb, Incorporated (United States)
H. A. Knoll, Bausch & Lomb, Incorporated (United States)


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