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How to Use the ZEMAX Black Box Surface
- By Mark Nicholson
- Published 3 February 2010
- System Modeling
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The ZEMAX Black Box surface solves the problem of how to share optical design data without revealing design secrets. This article explains how to export part or all of an optical design as a ZEMAX Black Box surface, and how to use that surface in subsequent optical design, optimization and analysis.
How To Model a 'Black-Box' Optical System Using Zernike Coefficients
- By Mark Nicholson
- Published 9 August 2007
- System Modeling
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It is often required to represent an optical system in a design even though you do not have detailed prescription data like radii of curvature, glasses etc. This article shows how to use Zernike coefficients to describe the wavefront aberrations of a system and produce a simple but accurate representation of an optical system if a ZEMAX Black Box Surface file cannot be used. This is typically the case if you are relying on experimental data measured using the optical system, but its prescription data is not available to you.
How to Model an Off-Axis Parabolic Mirror at Finite Conjugates
- By Sanjay Gangadhara
- Published 26 August 2009
- Frequently Asked Questions , System Modeling
- Unrated
This article explains how to model an off-axis parabolic mirror when the source is a finite distance away from the mirror.
How to Debug a Double-Pass Lens File
- By Mark Nicholson
- Published 29 July 2009
- System Modeling , Tips & Tricks
- Unrated
This article describes an easy way to test whether a double-pass lens file is correctly set up, or not, and to identify where any errors are.
How to Simulate High Resolution Images
- By Mark Nicholson
- Published 31 October 2008
- System Modeling
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This article describes how to use the Image Simulation analysis tool to produce photorealistic images of object scenes including the effects of diffraction, aberrations, distortion, relative illumination, image orientation and polarization.
How to Use the Zernike Sag Surface to Model an All-Reflective System
- By Mark Nicholson
- Published 14 August 2007
- System Modeling
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This is a companion article to How To Model a 'Black-Box' Optical System Using Zernike Coefficients, and discusses the special case of an all-reflective design. This uses a Zernike Sag surface, instead of a Zernike Phase surface. The benefit is that the resulting system models the original all-reflective system at all wavelengths for a given field point.
How To Model Corner-Cube Retroreflectors
- By Mark Nicholson
- Published 18 July 2007
- Polarization and Thin Film Coatings , System Modeling
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Corner Cube retroreflectors are commonly used in a wide range of optical systems. This article describes various different ways in which these components can be modeled in ZEMAX. The treatment can be as detailed as the user needs, with effects due to face misalignment, roofline straddling, thin-film coatings, diffraction etc included as required.
ZEMAX Models of the Human Eye
- By Rod Watkins
- Published 18 June 2007
- User Articles , System Modeling
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There have been literally dozens of eye models published over more than 150 years, from very simple “reduced” eyes consisting of a single refracting surface to very complex models with more than 4,000 refracting surfaces. This article presents several sequential and non-sequential models of the human eye in ZEMAX format, with glass catalog data.
How to Model the Human Eye in ZEMAX
- By Mike Tocci
- Published 26 April 2007
- User Articles , System Modeling
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In this article, we will create model of a human eye in ZEMAX using the Liou & Brennan 1997 eye model. After successfully generating this eye model in ZEMAX, we will use it to design a free-form progressive eyeglass lens.
How to Design a Gaussian to Top-Hat Beam Shaper
- By Nam-Hyong Kim
- Published 4 October 2006
- System Modeling
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This article demonstrates how to design a simple refractive beam shaper that converts a Gaussian intensity profile into a top-hat profile. Sample files are provided, which can be downloaded from the last page of this article.
System Modeling