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Visualization of chromatic correction of fish lenses by multiple focal lengths

In English

Författare

Summary, in English

Many fish and some terrestrial animals have multifocal lenses that compensate for chromatic aberration by a mechanism unique to biological optical systems. We describe four optical methods for the study of such lenses. Significantly improved methods (focal-area imaging, schlieren photography, and laser scanning) are explained in full detail. One method (photorefractometry) was only slightly modified over earlier versions and is illustrated in brief. Portable equipment is available for photorefractometry, schlieren photography, and laser scanning. With our methods we could for the first time directly illustrate chromatic correction by multifocal lenses and detect a number of previously unknown optical features of fish lenses.

Publiceringsår

2005

Språk

Engelska

Sidor

691-700

Publikation/Tidskrift/Serie

Journal of Optics. A, Pure and Applied Optics

Volym

7

Issue

11

Dokumenttyp

Artikel i tidskrift

Förlag

IOP Publishing

Ämne

  • Zoology

Nyckelord

  • crystalline lens
  • physiological optics
  • fish
  • schlieren photography
  • photorefractometry
  • laser scanning

Status

Published

Forskningsgrupp

  • Lund Vision Group

ISBN/ISSN/Övrigt

  • ISSN: 1741-3567