: One of the first decisions a designer makes is choosing between Sequential Mode , primarily for imaging systems where light passes through surfaces in a fixed order, and Non-Sequential Mode , used for stray light analysis and illumination where light can take any path.
The LDE is the primary workspace where the physical "prescription" of the system is defined. Zemax ray tracing model for plasma waveguides Zemax Opticstudio User Manual--------
This chapter is dense.