A Simple Method for Finding the Valid Ray-Surface Intersection

David E L Freeman

doi:10.1364/ILD.1990.LTuB2

International Lens Design
Technical Digest Series (Optica Publishing Group, 1990),
paper LTuB2
•https://doi.org/10.1364/ILD.1990.LTuB2

A Simple Method for Finding the Valid Ray-Surface Intersection

David E L Freeman

International Lens Design 1990

Monterey, California United States
11–14 June 1990
ISBN:

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Ray Tracing (LTuB)

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D. E. L. Freeman, "A Simple Method for Finding the Valid Ray-Surface Intersection," in International Lens Design, Technical Digest Series (Optica Publishing Group, 1990), paper LTuB2.

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Abstract

In general, there are two or more mathematical solutions to the intersection of a ray with a surface. In fact, only one of these can represent the real physical situation, - the valid ray-surface intersection.

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