In this article we introduced non-sequential optimization and the different features available to expedite the process. In addition to the algorithm used and scope of search for optimization, ZEMAX has several features that make non-sequential optimization more efficient. In summary:

• Non-sequential solution space is inherently discontinuous due to computation of criteria on pixelated detectors
• OD is generally superior to DLS for optimizing non-sequential systems
• Pixel interpolation is used to smooth detector data and provide a more continuous solution space for optimization
• The NSDD operand supports efficient optimization of numerous flux, irradiance and intensity criterion
• Optimization targeting the second moment of illumination (RMS angular radius) is vastly superior to targeting central pixel brightness when the goal is beam collimation
• Optimizing a free-form mirror we were able to achieve a 13x improvement in on-axis brightness