ZEMAX Users' Knowledge Base - Articles - Sources, Splitting and Scattering

What Scattering Models are Available in ZEMAX?

no@spam.com (Sanjay Gangadhara) — Wed, 26 May 2010 11:00:00 PDT

This article provides�a summary of the surface and bulk scattering models available in ZEMAX.

How to Simulate Atmospheric Scattering using a Mie model

no@spam.com (Sanjay Gangadhara) — Fri, 09 Oct 2009 10:00:00 PDT

This article describes the implementation of the Mie scattering model in ZEMAX. An example of using this model to simulate scattering in the atmosphere is provided.

This article is also available in Japanese.

How to Simulate the Sparkle of a Diamond

no@spam.com (Shinichi NAGATA) — Tue, 08 Sep 2009 13:00:00 PDT

This article describes how to simulate the optical appearance a diamond using the powerful, non-sequential capabilities of ZEMAX. It uses a white light source and the true-color capabilities of ZEMAX to show the visual appearance of the diamond. It also contains a useful trick to maximize the light grasp of the receiving optics, and the macro used to generate the polygon object file for a diamond.

How to Use the Polar Detector and IESNA/EULUMDAT Source Data

no@spam.com (Akash Arora) — Fri, 01 May 2009 13:00:00 PDT

This article describes how to use the polar detector and import/export source IESNA and EULUMDAT data. It also contains a description of the NSDP optimization operand and ZPL numeric function. An encapusulated LED is used to illustrate these features.

How to Create an Array of Sources

no@spam.com (Tawnya Martin) — Fri, 01 May 2009 10:30:00 PDT

ZEMAX allows all sources to be replicated as arrays. Arrays of sources are more efficient than multiple instances of the same source, especially when the source is defined using a datafile. The array types include rectangular grid, hexapolar array and more. This article gives some examples of the use of this capability

How to Model Colored and Tristimulus Sources

no@spam.com (Sanjay Gangadhara) — Tue, 21 Apr 2009 11:30:00 PDT

This article describes the various models available in non-sequential mode for�defining broadband sources. These models fall into two categories: (1) source definitions based on measured spectra and�(2) source definitions based on Tristimulus values.

How to Model Fluorescence using Bulk Scattering

no@spam.com (Sanjay Gangadhara) — Fri, 31 Oct 2008 09:30:00 PST

This article explains how fluorescence can�be modeled in the non-sequential mode of ZEMAX using the Bulk Scattering Wavelength Shift capability.

How to Model Surface Scattering via the K-Correlation Distribution

no@spam.com (Sanjay Gangadhara) — Fri, 31 Oct 2008 09:30:00 PST

Updated March 2010. This article describes the K-correlation surface scattering model and its implementation in ZEMAX. An example comparing and contrasting the model to the Harvey-Shack (ABg) scattering distribution is provided.

How to Use Tabular BSDF Data to Define the Surface Scattering Distribution

no@spam.com (Sanjay Gangadhara) — Fri, 02 May 2008 11:00:00 PDT

This article explains how�measured BSDF data may be used to define the scattering properties of a surface. An example�using BSDF data measured by the Imaging Sphere for Scatter and Appearance, which has been developed by Radiant Imaging, is provided.

BSDF Data Interchange File Format Specification

no@spam.com (Ron Rykowski) — Fri, 02 May 2008 11:00:00 PDT

This article describes the BSDF Data Interchange file format, as developed by Radiant Imaging, Inc. This file format is required for the user-defined�scattering function�RI_BSDF.DLL, which�is used to apply a scattering distribution as provided by tabular BSDF data on a non-sequential surface.