Seg Height Measurement Tool

There is a new twist on the old subject of measuring seg heights and progressive lens verification.

Seg height measurement tool. 35215 t shaped pd ruler segment height gauge vigor ga215. Second it reproduces the patient s eye height as an objective instrument so the optician can measure the seg height on the lens. Apply like a sticker to the front surface of lens. Segment height does not apply to single vision lenses.

Ruler circumference measure. Ecps of all skill levels can now get the seg height right y stick is made in germany. Use a ruler that has millimeter measurements. First for measuring the proper height of a progressive lens.

In short y stick removes the intimidation and subjectivity from seg height measuring said fischer. 35215d t shaped pd ruler segment height gauge pack of 12. Lab lenses lab supplies measuring devices height measuring sticker. Segment height measurement gauge bifocal trifocal lens measuring vigor ga216 pack of 2.

Using various measurement tools that are in any skilled optician s toolbox she still takes precise a b dbl pd seg height vertex distance pantoscopic tilt and frame wrap angle measurements needed for contemporary free form lenses. Measuring devices seg height instruments seg hi measuring gauge seg hi measuring gauge please sign in to order this item. The twist is the pupil marker sometimes known as the white pen here s how the pupil marker is used for these two processes we do everyday. Each sticker is reusable up to.

Segment height also known as seg height or sh is the vertical measurement in millimeters from the bottom of the lens in your frames to the beginning of the progressive addition on a progressive lens or the top line of a lined bifocal. How to measure your segment height. The determined segment height is specific to each. Align 0 scale to bottom of lens to identify seg height.