This article describes how to use the polar detector and import/export source IESNA and EULUMDAT data. It also contains a description of the NSDP optimization operand and ZPL numeric function. An encapusulated LED is used to illustrate these features.

This article is also available in Japanese.

Question: Where can I obtain optical performance data for the LEDs I want to use in my design?

This article explains:

• How to model an LED, or other complex source, in the non-sequential mode of ZEMAX
• How to use the source_radial to enter simple experimental data
• How to use the source_file to enter detailed experimental data
• How to build complex geometrical models of sources

The article contains sample files in a zip archive which can be downloaded from the last page of the article.

LED manufacturer Osram Opto Semiconductors now makes comprehensive ray-tracing data for its range of products available free of charge in ZEMAX format. This article explains how to access and use that data.

This article is also available in Japanese.

This article describes how to use Luca'Raymaker from Opsira to generate source files that ZEMAX can use for ray-tracing.