How to Ensure MATLAB Will Read Your Text File

This article explains what to do if MATLAB will not read your text file.

Authored By: Liz Gerrish and Alissa Wersal

Published On: August 26, 2015

Is My Key Under Current Support?

The article explains how to tell if your key is currently eligible for technical support and upgrades to OpticStudio software. 

It also explains how to update the support expiration, and what to do if it fails. 

Checking Your Support Expiry Date
Identify your license type before updating
If The Check For Updates Process Fails
Get Help Updating Your Support Expiration

Authored By: Mark Nicholson

Published On: December 12, 2016

How to Specify Fields for Non-Rotationally Symmetric Systems

This article explains how to assign appropriate weight for the on-axis field when specifying fields for non-rotationally symmetric systems.  


Authored By: Name-Hyong Kim

Published On: September 18, 2015

Fitting Index Data in Zemax

This article explains:
  • What to do if the material you wish to design with is not built in to Zemax
  • How to use the Glass Fitting Tool in Zemax
  • How to define Transmission Data


Authored By: Sanjay Gangadhara

Published On: May 2, 2008

How to Produce Photorealistic Output Images

This article describes how to take high-resolution .BMP or .JPG images and ray-trace them through a sequential optical system. The resulting high resolution, photo-realistic images provide compelling evidence of final system performance, and can help to communicate that performance to non-optics specialists.

Authored By: Mark Nicholson

Published On: July 31, 2006

What is The Birefringent Mode Flag For?

Question: Zemax OpticStudio supports four birefringent mode flags on the Birefringent_In surface. What are they for, and when do I use them?

Authored By: Mark Nicholson

Published On: August 26, 2015

Can Zemax OpticStudio Be Used to Model Any Portion of the Electro-Magnetic Spectrum?

Question: Zemax OpticStudio is well known for modeling visible, infrared, andultraviolet applications, but is it accurate when using radio, x-ray, orother "non-optical" wavelengths?

Authored By: Akash Arora

Published On: August 19, 2015

How Do I Account for Energy Losses When Performing a Sequential Ghost Analysis?

This article explains how to account for energy losses when performing a sequential ghost analysis.

Authored By: Akash Arora

Published On: August 19, 2015

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

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 Vision Systems, is provided.

Authored By: Sanjay Gangadhara (2008); Updated by Alissa Wersal

Published On: August 10, 2015

The Mars Rover Camera Lenses

This article is an excerpt from Gregory Hallock Smith's book, Camera Lenses: From Box Camera to Digital.  The excerpt is Chapter 31 in its entirety.  Chapter 31 of Smith's book discusses the cameras aboard the Mars Exploration Rovers, the lenses of which were designed using Zemax by the author.  This article also includes links to several fascinating pictures taken aboard these "robotic geologists."

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