Pupil Diameter and the Depth-of-field of the Human Eye as Measured by Laser Speckle
- 1 December 1977
- journal article
- research article
- Published by Taylor & Francis in Optica Acta: International Journal of Optics
- Vol. 24 (12) , 1211-1216
- https://doi.org/10.1080/713819479
Abstract
Results are given for the variation in the depth-of-field with entrance pupil diameter for six subjects. The method was based on observation of a laser speckle pattern at 633 nm on the surface of a slowly rotating drum. Depth-of-field falls with pupil diameters up to ∼ 5 mm and then remains at an approximately constant value. The roles of diffraction, aberration, the Stiles-Crawford effect and of non-optical aspects of the visual system are discussed.Keywords
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