This paper shows the value of detailed computer simulation in investigating collection geometries. We feel it is an excellent application of the new LightTools Illumination Module, as well as a demonstration of the capabilities of ORA's versatile engineering group. Copies of this paper are available from ORA on request. It defines a new chief ray for the specified field which hits the specified surface at the desired coordinates. In this special case, this user-defined point is used as the chief ray image location and as the center of the OPD reference sphere for all options, including diffraction analysis options.
Some optical systems have square or rectangular entrance pupils.
Although there is no single command to accomplish this in CODE V, there are several useful features for simulating this situation. However, the reference rays which define ray bundles for drawing, optimization, and default aperture setting will NOT be consistent with the rectangular apertures without help from you. This will introduce axial vignetting, which CODE V will occasionally warn you about, though in this case it is intentional. It is also good to use CA APE , which tells CODE V to honor only the user-defined apertures, thus ignoring the default circular apertures. Tips Setting up NSS systems can be complicated, and tracking down setup errors can seem even more complicated.