The update to version 15.87 incorporates the following changes:
- Glass boundaries for GLM variables are now restored to the default when you change directories.
- A new system parameter is available. ILINE in the RLE or CHG file causes glass model variables to utilize a new set of index interpolation coefficients that are more accurate in the ultraviolet than are the standard GLM models. To use this feature, at least three wavelengths must be declared in the lens and all must be less than or equal to 0.45 um. Some of the glass-table analysis features are then disabled, since they need the index at the C line (0.6563), which is outside the accurate range of the new coefficients.
- The ARGLASS command (to replace glass models with real materials) now accepts an optional ANNEAL directive.
- The MRG dialog now has an option to create a MACro of the input instead of just running it. This lets you examine the tasks to be performed and to add the new ANNEAL if you wish to.
- The glass-table display MGT could fail if thermal shadowing was in effect and two surfaces had the same glass type.
- The default weighting on GSHEAR aberrations returned by the ready-made dialog box were not appropriate for AFOCAL systems.
- If you saved a BTOL budget for a lens with zooming elements, and then read that budget back in, the tolerances on the zooms were not returned.
- The default clear apertures returned on a lens with VFIELD data could be incorrect.
The update to version 15.88 incorporates the following changes:
- The Image Tools feature to plot the image profile as either raw or smoothed data now displays a list in the requested format. Before, it only showed the raw data.
- ZSEARCH now has a USE CURRENT option, which adds the requested zoom lens behind an existing front end. This makes it possible to zoom over a wider field than is otherwise available.
- The TRAY command (targetted raytrace) now puts the values of Xen and Yen into the AI buffer along with the other ray data.
- The thermal shadow program ATS left any existing ACON … PICKUP in effect, which overrode the thermal changes.
- The CAO values derived from VFIELD data were not correct if the lens had a real pupil.
- The Shape Options dialog did not show the correct value of the lines/mm parameter for surfaces using the native GRATING feature.
- The combination of BACK … SET and COVER … did not work in DSEARCH. The back focus was set to zero in that case.
The update to version 15.89 incorporates the following changes:
- Many new features have been added to deal with hyperhemispherical surfaces. The program senses if a ray intercept occurs past the hemisphere point of a spherical surface, and all the drawing programs (except SOLID) render the shape correctly. And RSOLID can fill in for SOLID. The edge control monitor AEC now finds the separation based on real ray intercepts, rather than sag differences, for this shape. Edges are drawn according to the SEDGE protocol, since none of the other edge-definition options make sense with this kind of surface. And a new ray aberration, RSLOPE, can be used to steer a design away from a hyper surface, in cases when they are better avoided.
- The CFREE directive, which frees all hard clear aperture data, now leaves alone any CAO assigned to the stop surface if the lens has been assigned the wide-angle pupils WAP 2 or 3. Those options require a real stop.
- The color weights were not written to the ZMTF plot correctly.
- If you ran DSEARCH while the WorkSheet was open, the program failed to load the MACro DSEARCH_OPT.MAC when it was finished.
- The utilities menu MUT showed incorrect input parameters for the WGT command.
The update to version 15.90 incorporates the following changes:
- The narcissus program NAR has been improved. Now it can evaluate the ratio of the narcissus at the marginal and chief rays, which is a useful target for minimizing the effect where there is a large cold stop. And the new command FNAR can create a bitmap picture showing what you would see on a display in the presence of the narcissus.
- A new operand, RNAR can control the above ratio, thereby improving the narcissus.
- .If MTF or ZMTF encounter a problem with the lowest spatial frequencies, where there are insufficient pupil samples, it prints a warning message.
- The environment package ENM now warns you if you try to implement an index perturbation where an index pickup is involved.
- A very long radius of curvature turns on the hyperhemisphere flag.
- The CAP calculation did not work properly for object type OBD.
- If switch 84 is on and the pupil is noncircular, the MTF calculation was incorrect.
- There was a problem with the BGI plot.
- The dialog for editing GRIN data required changing.
- The tabulated data for OFPSPRD did not match what was plotted.