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SYNOPSYS™15.60 版本发布

The update to version 15.60incorporates the following changes:

Features:

1.A new aberration is available.CSLOPE will return the slope of the requested surface at the current CAO rather than along a given ray.This is useful for zoom lenses, where the CAO is taken at the largest aperture required for all zooms.

2.Some new monitors are now available. ACS will monitor the steepness of all surfaces whose curvature is varying, at the current CAO of that surface. This is similar to ASC, which only checks along the current upper and lower rim rays.This is intended for zoom lenses, where the CAO is set to the maximum aperture needed for all zooms.

3.Another new monitor is ATC, which checks the incidence angle of all rays in all colors at all zooms. This is to prevent critical-angle ray failures in zoom lenses.It is similar to ACA, which only checks a few rays at the current zoom.

4.The Automatic Asphere Assignment feature (AAA) now varies only aspheric term G 3 on a target surface.Before, it varied the conic constant -- but that did not work very well if the surface was nearly flat.This version should work with those surfaces too.

5.The program no longer scissors plots before they are displayed.This was a leftover from the batch-mode days, when the Calcomp plotter drivers did not deal gracefully with data that extended off the page.Since modern graphics drivers are much better, we now allow the picture to extend beyond the page boundaries, so you can see what is out there.(If you print the plot, you still only get the data that fit on the page.)

6.The GDIS command now lets you specify a size factor that can reduce the plot scale in the event that eliminating the scissoring makes the paraxial grid overfill the page.

Bugs Fixed:

1.The optimization program could go into a loop if rays failed on the initial pass and you did not request the FIX option.

2.The combination of WAP 1 and a real pupil did not work very well.

3.SCALE did not work correctly if aspheric term G 16 was nonzero.

4.The combination of object OBD (extreme wide angle) and WAP 2 did not work well.