Foci in ray pencils of general divergency
In generalized optical systems, that is, in systems which may contain thin refracting elements of asymmetric dioptric power, pencils of rays may exhibit phenomena that cannot occur in conventional optical systems. In conventional optical systems astigmatic pencils have two principal meridians that...
Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
AOSIS
2009-12-01
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Series: | African Vision and Eye Health |
Subjects: | |
Online Access: | https://avehjournal.org/index.php/aveh/article/view/161 |