Ken Moore
Ken is the President of ZEMAX Development Corporation and is the author of ZEMAX. He holds a Ph.D in Optics from the Optical Sciences Center, AZ, USA.
Articles by this Author
Why is it called ZEMAX?
- By Ken Moore
- Published 21 April 2006
- Frequently Asked Questions
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Question: Where does the name ZEMAX come from?
Why is Polychromatic Wavefront Error Greater than Monochromatic?
- By Ken Moore
- Published 19 April 2006
- Frequently Asked Questions
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Question: I've noticed when looking at the RMS wavefront error vs field plot, that it is possible for the polychromatic wavefront error to be larger than all of its constituent wavelengths. Why is this?
What is a ray?
- By Ken Moore
- Published 25 July 2005
- Ray Tracing Theory
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This article explains:
- What a ray is
- Rays and wavefronts
- Coordinates, cosines, and propagation
- Refraction, reflection, and diffraction
- Amplitude. phase and optical path
This article is also available in Japanese.
What is a Point Spread Function?
- By Ken Moore
- Published 22 July 2005
- Ray Tracing Theory
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Rating:
This article explains:
- What is a Point Spread Function?
- The spot diagram
- The FFT PSF
- The Huygens PSF
- How to observe the Huygens integration using a Non-Sequential lens and detector
- How to choose between using the Huygens and FFT based PSF for a sequential lens
The article is accompanied by a ZIP archive containing the sample ZEMAX files used. This can be downloaded from the final page of the article.
This article is also available in Japanese.