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How to Simulate Atmospheric Scattering using a Mie model
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. Authored By: Sanjay Gangadhara...
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How to Work with Strings in ZPL Macros
This article describes how to use strings and the string related capabilities of ZPL including: String Variables String Operations String Logical Operators String Functions Authored By: Andrew Locke Introduction The Zemax...
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How to model an Off-Axis Parabolic Mirror
This article demonstrates: How to model an off-axis parabolic mirror according to the manufacturer''s specifications. How to center the image surface on the chief ray using the chief-ray solve. The ZIP archive containing the sample file...
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How to Produce Photo-Realistic 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...
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How To Locate Geometry Errors Part II - Design Examples
This article serves as part II of the articles on Geometry Errors (Error 10561). This article is accompanied by a ZIP archive containing sample files which demonstrate some of the more common geometry errors. The ZIP file may be downloaded from the...
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How to Perform Freeform Optical Design
This article describes how to undertake ''freeform'' optical design using the Freeform-z object. This can be used for a complete design, or to generate starting points for subsequent work. An LED collimator lightpipe is used as an example....
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How to Use Programmers Editors With ZPL
One of the many benefits of ZPL macros is that they can be written in any text editor, such as Windows'' own Notepad. However, macros are often a lot easier to read, understand and debug when the macro commands are highlighted, and programmer''s text...
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Take Care With "Exact Equivalent" Glasses
A few years ago the manufacturers of optical glasses started the process of reformulating their glasses to remove arsenic and lead. At first glance, most of these glasses appear to be the exact equivalents of the original glasses. However, examining the...
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