Zemax User Manual May 2026

The Ansys OpticStudio (formerly Zemax) user manual serves as the primary guide for optical, illumination, and laser system design, covering sequential, non-sequential, and mixed-mode modeling. Key sections detail lens data editing, analysis tools, and the Zemax Programming Language (ZPL) for task automation. For a foundational overview, review the University of Arizona’s ZEMAX Guide. Zemax Programming Language – 3.12 Display

For Legacy ZEMAX (2009–2013 EE/SE)

• Third-party archives: The old ZEMAX Knowledgebase (archived by enthusiasts) still hosts PDFs for versions 2009, 2010, and 2012.
• Critical note: Legacy manuals are not available legally without an old license key. Many universities keep local copies on internal servers.

F1 Key: Pressing F1 while any dialog box or window is active will open the manual to the specific page related to that feature. zemax user manual

• Truth: The core engine (raytracing algorithms, optimization damping) has not changed drastically since ZEMAX 2012. The manual remains accurate for fundamental tasks.

• Ray trace types: Paraxial, Real, Physical Optics Propagation (POP).
• Define number of rays, ray fan, and accuracy settings in the Ray Trace toolbar.
• Use higher sample counts for stray light and non-sequential analysis; balance speed vs accuracy.

While the manual is extensive, these core areas are the most critical for starting a design: The Ansys OpticStudio (formerly Zemax) user manual serves

• Tolerance types: surface radii, thickness, decenter, tilt, refractive index, alignment, mounting errors.
• Tolerance setup: Tolerance Data Editor — specify manufacturing/assembly tolerances and distributions.
• Monte Carlo: run many trials to estimate yield; identify critical tolerances with sensitivity analysis.
• Compensation: enable compensators (adjustable elements during assembly testing) to improve yield.

Scenario C: Modeling a Laser Diode into a Fiber

• Manual section: "Source Diode" object in NSC. The manual gives the exact parametric model for elliptical divergence (Theta parallel/perpendicular).
• Key formula from manual: How to convert FWHM divergence to 1/e² Gaussian waist for proper coupling efficiency.