Seg Height Measurement Tool

Segment height does not apply to single vision lenses.

Seg height measurement tool.

Optometric lab lenses. 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. Ruler circumference measure. 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 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. First for measuring the proper height of a progressive lens. 35215d t shaped pd ruler segment height gauge pack of 12.

Align 0 scale to bottom of lens to identify seg height. Ecps of all skill levels can now get the seg height right y stick is made in germany. Each sticker is reusable up to. Put the glasses on your face and adjust them so that they sit comfortably.

How to measure your segment height. Measuring devices seg height instruments seg hi measuring gauge seg hi measuring gauge please sign in to order this item. You can also use a ruler with centimeter measurements and simply times the result by 10 to get your millimeter measurement. Use a ruler that has millimeter measurements.

Segment height measurement gauge bifocal trifocal lens measuring vigor ga216 pack of 2. The determined segment height is specific to each. Lab lenses lab supplies measuring devices height measuring sticker. In short y stick removes the intimidation and subjectivity from seg height measuring said fischer.