segment height

segment height 

The vertically measured distance from the lowest point on the lens to the top of the segment of a bifocal (or trifocal) ophthalmic lens. Syn. seg height.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann
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The exclusive blade has nearly a full inch of segment height and includes the highest amount of diamond concentration available.
The other topic of interest is segment height in progressive ground glasses.
User-selected product dimensions are monitored and displayed, including segment height, width, distance, angles, arc radii and diameters.
wheel (STIHL INC., Virginia Beach, Virginia) has a segment height of about 0.30 in.
The second discounted item, Green Giant diamond blade, on the other hand, comes with a 15mm jumbo segment height and is apt for slashing blocks, bricks, and concrete.
The segment heights needed to be positioned higher than an adult's bifocal to ensure the child made use of the reading area.
Segmented edge wheels have different segment heights and widths depending on the wheel's diameter.
The recommended viewing angle for a VDU screen is 1520[degrees] downwards from the horizontal and this will dictate the position of the segment heights in bifocal lenses.