Support
THE WALKER LENSES
You need the book "Optical Engineering Fundamentals" by Bruce Walker to pursue these references. The Walker Lenses The Walker lenses are 11 designs that are described in the book "Optical Engineering Fundamentals, Second Edition", by Bruce H. Walker, McGraw-Hill 2009. They are included to simplify...
10. OSLO Tip: Compiling ccl files
XMT Plots transmission as a function of field (CCL)
Question This record is outdated. It has been superceded by record #445 XMT Plots the fall in transmission as a function of relative object height arising from vignetting. It illustrates how a custom error handler prevents reference ray failures terminating execution of a CCL command. Synopsis XMT...
Information about data exchange formats for OSLO
Question I am interested in exchanging data between OSLO and other programs. How do I accomplish this? Synopsis Information about data exchange formats for OSLO Symptoms There are two main ways to exchange data between OSLO and other programs:
Defective Object Warning Message
Question I have created a large elliptical reflector with focal length 1 = 100,000 mm, focal length 2 = 10,000 mm, and z position = 55,000 mm. The reflector has approximately 200 surfaces. When I perform a ray-trace, the Audit gives a Defective Object warning message, but the ray-trace appears to...
36. OSLO Tip: Opening spreadsheets quickly
11. Radiometry and Photometry
Grid Raytrace - calculation of actual Beam Width
Question I have set up a Grid Raytrace with a rectangular grid boundary, with half-height x and y set = 10. I also selected a Rectangular Grid Pattern with 10 x-points and 10 y-points. I expected to get a 20x20 beam, but the Irradiance Map shows the beam to be 18x18. What is wrong? Synopsis Grid...