Design Intricate Light Pipes Optimized for Utility, Efficiency, Color, and Uniformity Light pipes (or light guides) are widely used in automotive instrument panels, avionics, consumer electronics, and many other applications. Design engineers integrating light pipes into their product design...
Question What options are available in TracePro for importing CAD files, and which option is best? Synopsis Comparison of CAD Import options for TracePro Solution The import options to TracePro can be obtained by selecting File/Open, then looking at the list of File Types that can be opened. The...
Question "What does "vignetting" mean as it applies to optical design?" Synopsis Definition: vignetting Solution "An optical ray is vignetted when it passes through (or would have passed through) the limiting aperture of an optical system (the system Aperture Stop), but instead gets blocked by some...
Question I would like to change the colors of the rays that are drawn in the standard lens drawings. By default, green, blue, red,...etc. is chosen. How do I assign rays specific colors? Synopsis Changing the ray colors in a lens drawing Solution Note that fans of rays in lens drawings are drawn...
Question I want to temporarily turn the graphics scale bar off in some of my graphics drawings. When I set the OSLO preference "graphics_labels" to be "off" using either: set_preference graphics_labels off; or, stp glab off; the graphics scale disappears from the shaded solid drawings, but it...
Petzval is a starting design for a large aperture narrow-field photographic lens. The Petzval design has been around for more than one hundred years, and is still widely used. The Petzval lens is a very old design form ( > 150 years!) that is still a mainstay in lens libraries. The original Petzval...
