Hi,
According to the ISO-8980-1/2 standard (Ophthalmic optics — Uncut finished spectacle lenses), both principal power meridians must be controlled at the primary reference point. Because the DCS is used worldwide in the ophalimic industry, I would like to propose to add the tags S1 and S2 in the DCS document.
As there are measurable values, it makes sens to create these tags with the LD*, TOLV*, INS*, TOL* and CK* tags.
So, for the lower principal power meridian, we have:
S1 => prescribed value
LDS1 =>designed value
TOLVS1 =>tolerance values
INSS1 =>inspected value
TOLS1 => result of the tolerance test
CKS1=>activation of the control
And fo the highest principal power meridian, we have
S2 => prescribed value
LDS2 =>designed value
TOLVS2 =>tolerance values
INSS2 =>inspected value
TOLS2 => result of the tolerance test
CKS2=>activation of the control
note : This topics was discussed shortly during the last DCS meeting in september 2023.
Gauthier Collienne - Automation & Robotics
