Direct determination of f-number by using Ronchi test
نویسندگان
چکیده
منابع مشابه
Null Ronchi-Hartmann test for a lens.
A method to design Ronchi-Hartmann screens for improved alignment in the testing of fast plano-convex spherical lenses is presented. We design null screens that produce aligned straight fringes for observed patterns. The designs of these null screens are based on knowledge of the caustic by refraction. A qualitative test for a lens is presented.
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15 صفحه اولValidation of quantitative Ronchi test through numerical propagation.
We validate the quantitative analysis of Ronchigrams for wavefront sensing through detailed numerical simulations. Analysis of the experimental Ronchigrams provides the wavefront aberrations, the F/# of the beam and the distance of the Ronchi ruling from the paraxial focus. These retrieved parameters are used to numerically simulate the Ronchigrams with excellent agreement. This favorable compa...
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development of different optical methods for determination of glucose using cadmium telluride quantum dots and silver nanoparticles
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ژورنال
عنوان ژورنال: Optics Express
سال: 2009
ISSN: 1094-4087
DOI: 10.1364/oe.17.005107