<![CDATA[ZEMAX Users' Knowledge Base - Articles - 3D Geometries]]> http://www.zemax.com/kb en-us N/A support@zemax.com Sat, 11 Oct 2008 16:26:15 PDT 20 <![CDATA[How to Work in Global Coordinates in a Sequential Optical System]]> http://www.zemax.com/kb/articles/194/1/How-to-Work-in-Global-Coordinates-in-a-Sequential-Optical-System/Page1.html When working with a sequential optical system, it is usually most convenient to work in local coordinates. However, there are cases when working in global coordinates is easier: typically when working with perturbation data produced by FEA in systems with complex 3-D tilts and decenters. This article describes how to switch between sequential and global data entry methods.

]]> no@spam.com (Mark Nicholson) http://www.zemax.com/kb/articles/194/1/How-to-Work-in-Global-Coordinates-in-a-Sequential-Optical-System/Page1.html <![CDATA[How Do I Change The Size and Shape of An Optical Component?]]> http://www.zemax.com/kb/articles/161/1/How-Do-I-Change-The-Size-and-Shape-of-An-Optical-Component/Page1.html Question: ZEMAX draws all my optical surfaces as if they has circular apertures. How do I make it draw a rectangular cross-section, or some general cross-section?]]> no@spam.com (Mark Nicholson) http://www.zemax.com/kb/articles/161/1/How-Do-I-Change-The-Size-and-Shape-of-An-Optical-Component/Page1.html <![CDATA[Why Do Rays Trace Behind a Fold Mirror Surface?]]> http://www.zemax.com/kb/articles/146/1/Why-Do-Rays-Trace-Behind-a-Fold-Mirror-Surface/Page1.html This article explains:

  • Why rays sometimes appear to trace behind fold mirror surfaces
  • How to fix this problem
  • The benefits of the “Add Fold Mirror” tool
]]> no@spam.com (Andrew Locke) http://www.zemax.com/kb/articles/146/1/Why-Do-Rays-Trace-Behind-a-Fold-Mirror-Surface/Page1.html <![CDATA[Demystifying the Off-Axis Parabola Mirror]]> http://www.zemax.com/kb/articles/113/1/Demystifying-the-Off-Axis-Parabola--Mirror/Page1.html
This article describes a real-life assignment that required an OAP to be used with an existing optical system]]> no@spam.com (Mike Tocci) http://www.zemax.com/kb/articles/113/1/Demystifying-the-Off-Axis-Parabola--Mirror/Page1.html <![CDATA[How To Restore Coordinate Systems using the Coordinate Return]]> http://www.zemax.com/kb/articles/96/1/How-To-Restore-Coordinate-Systems-using-the-Coordinate-Return/Page1.html no@spam.com (Dan Hill) http://www.zemax.com/kb/articles/96/1/How-To-Restore-Coordinate-Systems-using-the-Coordinate-Return/Page1.html <![CDATA[How to Model an Ellipse Using the Conjugate Surface]]> http://www.zemax.com/kb/articles/70/1/How-to-Model-an-Ellipse-Using-the-Conjugate-Surface/Page1.html This article explains how to use a conjugate surface in sequential ZEMAX to create an elliptical surface by specifying the foci of the ellipse as its parameters.

The sample files discussed can be downloaded from the last page of this article.

]]> no@spam.com (Nam-Hyong Kim) http://www.zemax.com/kb/articles/70/1/How-to-Model-an-Ellipse-Using-the-Conjugate-Surface/Page1.html <![CDATA[How to model an Off-Axis Parabolic Mirror]]> http://www.zemax.com/kb/articles/63/1/How-to-model-an-Off-Axis-Parabolic-Mirror/Page1.html 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 can be downloaded from the final page of the article.

]]> no@spam.com (Nam-Hyong Kim) http://www.zemax.com/kb/articles/63/1/How-to-model-an-Off-Axis-Parabolic-Mirror/Page1.html <![CDATA[How to Model a Beam Splitter in Sequential ZEMAX]]> http://www.zemax.com/kb/articles/46/1/How-to-Model--a-Beam-Splitter-in-Sequential-ZEMAX/Page1.html This article explains:

  • How to create a Beam Splitter Cube in sequential ZEMAX using mutiple configurations
  • How to simulaneously trace transmitted and reflected rays in the layout and analysis/calculation windows
  • How to calculate the total power in both transmitted and reflected beams, accounting for polarization effects and thin-film coatings

The article is accompanied by a ZIP archive containing the sample file. This can be downloaded from the final page of the article.

]]> no@spam.com (Nam-Hyong Kim) http://www.zemax.com/kb/articles/46/1/How-to-Model--a-Beam-Splitter-in-Sequential-ZEMAX/Page1.html <![CDATA[How To Model a Scanning Mirror]]> http://www.zemax.com/kb/articles/25/1/How-To-Model-a-Scanning-Mirror/Page1.html
  • How to set up the coordinate breaks needed to make a scanning mirror
  • How to use the Multiple Configuration Editor to sample multiple scan angles
  • How to set up a galvanometer-style scanning mirror, where the mirror tilts about its vertex
  • How to set up a polygon scanning mirror, where the mirror tilts about an offset point

    • 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.

    ]]>     no@spam.com (Mark Nicholson) http://www.zemax.com/kb/articles/25/1/How-To-Model-a-Scanning-Mirror/Page1.html     <![CDATA[How to Tilt and Decenter a Sequential Optical Component]]> http://www.zemax.com/kb/articles/24/1/How-to-Tilt-and-Decenter-a-Sequential-Optical-Component/Page1.html
  • What coordinate break surfaces are, and how they work
  • How to use the Global Vertex report to check your work
  • Why coordinate break surfaces usually come in pairs
  • Why coordinate break surfaces have to be co-located
  • How to do all this the easy, simple, fun way

    • 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.

    ]]>     no@spam.com (Mark Nicholson) http://www.zemax.com/kb/articles/24/1/How-to-Tilt-and-Decenter-a-Sequential-Optical-Component/Page1.html