1.499 Semi-Finished Round Top Bifocal Lens

A bifocal lens can be called a multi purpose lens. It has 2 different fields of vision in one visible lens. The larger of the lens usually has the prescription necessary for you to see for distance. However, this can also be your prescription for computer use or intermediate range, as you would normally be looking straight when you view through this particular part of the lens. The lower part, also called the window, typically has your reading prescription. Since you generally look down to read, this is the logical place to put this range of vision assistance.

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1.499 round-top semi-finished optical lens
Model:	1.499 optical lens
Place of Origin:	Jiangsu, China
Brand:	SETO
Lenses Material:	Resin
Bending	200B/400B/600B/800B
Function	round-top
Lenses Color	Clear
Refractive Index:	1.499
Diameter:	70/65
Abbe Value:	58
Specific Gravity:	1.32
Transmittance:	>97%
Coating Choice:	UC/HC/HMC
Coating color	Green

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