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Lens-on-lens microstructures

Optics Letters, 2015
Microlenses with multiple focal lengths play an important role in three-dimensional imaging and the real-time detection of unconfined or fluctuating targets. In this Letter, we present a novel method of fabricating lens-on-lens microstructures (LLMs) using a two-step femtosecond laser wet etching process. A 3×3 LLM array was made with a diameter of 129.
Qing, Yang   +7 more
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Replacing a thin lens by a thick lens

Applied Optics, 2020
This paper deals with the problem of replacing a thin lens by a thick lens with approximately the same properties as the thin lens. Equations enabling the calculation of the parameters of a thick lens that has the same focal length and the same value for one of the Seidel aberration coefficients (either the Seidel aberration coefficient of spherical ...
Antonín, Mikš, Pavel, Novák
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The Lens

Archives of Ophthalmology, 1975
The subjects to be reviewed are as follows: (1) Anatomy, histology, and pathology. (2) Genetic and congenital anomalies. (3) Cataract. (Under cataract we shall consider the following: incidence and prevention of blindness from cataract; formation of an experimental production of cataract; cataract related to ocular and systemic disease; cataract ...
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