What is Middle Index 1.56 Semi Finished Progressive Optical Lenses Spectacles Lenses
Price
Min. Order Reference FOB Price
1000 Pairs US$0.10-10.00 / Pair
Sepcifications
- Usage Lighting, Medical, Optical
- Type Convex Lens
- Transmittance >95%
- Shape Ball, Hemisphere
- Material Nk-55
- Lenses Color Clear
- Certification ISO9001, CE, FDA
- Customized Customized
- Coating HMC
- Transport Package White Envelopes or as Customers Requirement
- Specification 70/72/75mm
- Trademark BORIS
- Origin Danyang, Jiangsu, China
- Power Range Add +1.00~+3.00 Base 4b 6b
- Coating Color Green Blue
- Specific Gravity 1.28
- Abbe Value 35
Product Description
Progressive multifocal lenses are also called progressive lenses, which have multiple focal points on one lens as the name implies. If the lens is divided from the focus, it can be divided into single focus lens, double focus lens, multi focus lens. The most common type of lens is the ...
