1.59 PC Bifocal Invisible Blue Cut HMC Optical lenses

Short Description:

Bifocal lenses or bifocal lenses are lenses that contain two correction areas at the same time and are mainly used to correct presbyopia. The far area corrected by the bifocal lens is called the far area, and the near area is called the near area and the reading area. Usually, the distal region is large, so it is also called the main film, and the proximal region is small, so it is called the sub-film.

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Product Detail

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Production Details

Place of Origin:	Jiangsu	Brand Name:	BORIS
Model Number:	High Index Lens	Lenses Material:	PC
Vision Effect:	Bifocal Lens	Coating Film:	HC/HMC/SHMC
Lenses Color:	White(indoor)	Coating Color:	Green/Blue
Index:	1.59	Specific Gravity:	1.22
Certification:	CE/ISO9001	Abbe Value:	32
Diameter:	75/70/65mm	Design:	Aspherical

Bifocal lens refers to the same lens with two different diopters, two diopters

It is distributed in different areas of the lens. The area for seeing far is called the telophotomic area, which is located in the upper part of the lens. The area used to look close is called the nearsighted area and is located in the lower half of the lens.

Advantages of bifocals: YOU can see distant objects clearly through the far area of a pair of lenses, and you can see close objects clearly through the near area of the same pair of lenses. No need to carry around two pairs of glasses, no need to switch between distant and near glasses frequently.

Production Introduction

PC space lenses are made of polycarbonate lenses, and ordinary resin (CR-39) lenses have essential differences! PC is commonly known as bulletproof glass, so PC lenses adhering to the excellent characteristics of raw materials super impact resistance, and due to high refractive index and light weight, greatly reduce the weight of the lens, there are more advantages such as: 100% UV protection, 3-5 years will not yellowing. If there is no problem in the process, the weight is 37% lighter than the ordinary resin sheet, and the impact resistance is up to 12 times of the ordinary resin!