Fresnel Profile

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2-2-135

Fresnel Profile (of a lens or fixed lens)

A stepped profile of both dioptric and catadioptric elements, the dioptric part of which presents one straight side towards the focus.

(Figs. 10, 14 and 16)

File:Ch2 Fig16.jpg

Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)

[[Category:2.2 Optical Apparatus]

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