Mark Nicholson
Mark is Vice President, Operations at ZEMAX Development Corporation. Prior to this, he was Technical Director of Optima Research. Prior to that is just too far back in time ;-)
Mark earned a B.Sc. in Physics and a Ph.D. in Optical Physics at Imperial College, London.
Mark earned a B.Sc. in Physics and a Ph.D. in Optical Physics at Imperial College, London.
Articles by this Author
How to Create a New Glass Catalog
- By Mark Nicholson
- Published 6 May 2008
- Glass and Refractive Index
- Unrated
This article describes how to create a glass catalog to contain your own glass data.
How to Include Detector Resolution in MTF Calculations
- By Mark Nicholson
- Published 2 May 2008
- Analysis Features
- Unrated
MTF is a commonly used to describe the performance of an imaging system, but the finite resolution of the detection system is often ignored. This article describes how to account for detector pixel sizes and position shifts to give a full-system MTF measurement.
How to Use the Find Best Asphere Tool
- By Mark Nicholson
- Published 2 May 2008
- Tips & Tricks , System Modeling
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This article describes a fast method to identify which surfaces in a design will best benefit from aspherization.
How Accurate is NURBS?
- By Mark Nicholson
- Published 7 April 2008
- CAD Exchange
- Unrated
This article explains the range of ZEMAX surfaces and objects than can be exactly defined using NURBS, and gives an example of exporting high-order aspheres.
How to Test the Network Key Prior to Purchase
- By Mark Nicholson
- Published 21 February 2008
- Installation and Troubleshooting
- Unrated
Many corporate customers want to convert from multiple single-user keys to network keys,but want to make sure that their networks are properly configured before changing something that's worked for years. ZEMAX has a built-in diagnostic that lets you set up a network key server without actually having a network key attached, and that then tests the connection to the server so you're sure the network key won't be blocked by firewalls, security software etc.
How Do I Monitor Usage of the Network Key?
- By Mark Nicholson
- Published 11 January 2008
- Hardware Key
- Unrated
Question: With the network key I can see what is using a ZEMAX license at any one time. Can I write this data to a log file for subsequent analysis?
What Computer Should I Buy to Run ZEMAX?
- By Mark Nicholson
- Published 13 December 2007
- Frequently Asked Questions
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Updated December 2007. This article explains how to choose a workstation for running ZEMAX on. It concentrates on:
- Choice of Processors
- Amount of Memory
- Graphics Card
- Some other Frequently Asked Questions about computers
How To Submit Vendor Data To Be Distributed With ZEMAX
- By Mark Nicholson
- Published 27 November 2007
- Glass and Refractive Index , Frequently Asked Questions
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This article explains how to submit test plate, lens and glass catalog data for distribution with ZEMAX.
What to do when ZEMAX will not run
- By Mark Nicholson
- Published 31 October 2007
- Installation and Troubleshooting
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This article explains:
- What to do if ZEMAX asks you for a license code when you run the program
- What to do if ZEMAX cannot find your hardware key when you run the program
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.
