Cloud native EDA tools & pre-optimized hardware platforms
Occasionally, you might need to take measured sag data and fit a surface in CODE V to this data. The data could be profilometer data from a fabricated part to look for fab errors, or data from a cockpit or automotive windshield that does not have a typical surface profile. Recently a set of macros has been improved to aid you in using CODE V for this task.
The process is pretty simple and utilizes the flexibility of the CODE V optimizer. An indicator system is set up as shown below for the purpose of measuring the optical path between a reference surface and a fitting surface. A custom user defined error function is created that defines the distance (using OP) between the surfaces at many different heights as aberrations. The target values for these aberrations are set to match the sag values from a data file, so that when optimized, the fitted surface should match the sag data (given sufficient degrees of freedom).
It is up to the user to decide what type of surface to fit, and which parameters can be varied. Below is a typical example where an asphere has some residual surface ripple due to the manufacturing process, which can be seen by fitting the data to a QBF surface type, using the desired aspheric orders.
More information can be found on our Customer Portal. If you have any other questions, please contact us at ora_support@synopsys.com.
In June, Synopsys' Optical Solutions Group hosted a CODE V user group meeting featuring presentation topics ranging from CODE V case studies and usage tips to what’s new in the software.
If you weren't able to attend the meeting, we've uploaded the presentations to the Customer Portal so you can benefit from this year's topics. When you log in, you'll find the following presentations:
Updates to the CODE V glass catalog, including the CDGM, Hikari, Hoya, and Ohara manufacturers' catalogs, are now available for download from http://www.synopsys.com/optical-solutions/support/support-glass-catalog.html. In addition to download links, we have included details about the glasses affected by this update and installation instructions