...
Most designs use the "Path" column; if the lens design is set up with the option "Use Alt DEO paths", then the file(s) will be created in the paths indicated in the "Alt Path" column. If the "Alt Path" entry is blank, then the entry in "Path" will be used.
This "Alt" path is used to re-direct the surface point and engraving files to a different folder, which makes them unavailable to devices that might request them.
The CLBS blocking equipment will then modify these files, and copy the modified files to the "actual" folders where they can be used by the equipment.
For example, for an LMS file containing several blocks of data, using the above naming conventions and paths:
Path of a Varilux S job
When a Varilux S job is received back from DEO, using the path configuration above, the HSC (surface point) files will be saved as:
DS\ESSILOR\CLBS_SDF\12345678_R,HSC and DS\ESSILOR\CLBS_SDF\12345678_L,HSC. The LDPATH on the job, however, will still point to DS\SDF\123456789_R.HSC and DS\SDF\12345678_L.HSC, even though those files do not, as yet, exist.
When the lenses are blocked and run through the CLBS equipment, the CLBS process will take the HSC files from the DS\ESSILOR\CLBS_SDF folder, modify them, and put the modified files into DS\SDF. The job can then be called up on equipment.