Cr39 1.499 Bifocal Flat Top UC Uncoated Bifocal Semi Finished Optical Lens Blanks

• Function: for Presbyopic, for Astigmia, UV Protection, for Myopia
• Material: Cr 39
• Abbe Value: 58
• Specific Gravity: 1.32
• Coating Choice: Hc, Hmc, Green
• Power Range: Sph:0.00~+3.00 0.00~-2.00 Add:+1.00~+3.00
• Model NO.: 1.499 FT-28 UC
• Diameter: 70/28mm
• Transmission: > 97%
• Guarantee: 3~5 Years
• Key Word: 1.499 Flat Top Bifocal Uncoated Lens

Product Description

Product Name	1.499 Flat Top Bifocal Uncoated Lens
Diameter	70/28mm
Monomer	CR39
Abbe value	58
Specific Gravity	1.32
Power Range	Sph:0.00~+3.00 0.00~-2.00 Add:+1.00~+3.00

Bifocal lenses are perfect for people suffering from presbyopia- a condition in which a person experiences blurred or distorted near vision while reading a book. To correct this problem of distant and near vision, bifocal lenses are used. They feature two distinct areas of vision correction, differentiated by a line across the lenses. The top area of the lens is used for seeing distant objects while the bottom part corrects the near-vision.

Products Description:
 

INDEX	SINGLE VISION	BIFOCAL	PROGRESSIVE
1.499	UC/HC/HMC	FT-28 RT-28 BLENDED-28	PROGRESSIVE
1.56	UC/HC/HMC/SHMC UV400 UV420 BLUE CUT PHOTOGREY/BROWN BLUE CUT PHOTOGREY	UC/HC/HMC/SHMC FT/RT/BLENDED UV420 BLUE CUT FT/RT/BLENDED PHOTOGREY/BROWN FT/RT/BLENDED BLUE CUT PHOTOGREY FT/RT/BLENDED	UC/HC/HMC/SHMC PROGRESSIVE UV420 BLUE CUT PROGRESSIVE PHOTOGREY/BROWN PROGRESSIVE BLUE CUT PHOTOGREY PROGRESSIVE
1.61	UV400 UV420 BLUE CUT PHOTOGREY/BROWN BLUE CUT PHOTOGREY	RX	RX
1.67	UV400 UV420 BLUE CUT PHOTOGREY/BROWN BLUE CUT PHOTOGREY	RX	RX
1.74	UV400	RX	RX
1.59	HC/HMC/SHMC UV420 BLUE CUT PHOTOGREY/BROWN BLUE CUT PHOTOGREY	HC/HMC/SHMC FT/RT UV420 BLUE CUT FT/RT PHOTOGREY/BROWN FT/RT BLUE CUT PHOTOGREY FT/RT	HC/HMC/SHMC PROGRESSIVE UV420 BLUE CUT PROGRESSIVE PHOTOGREY/BROWN PROGRESSIVE BLUE CUT PHOTOGREY PROGRESSIVE

RX: We can produce in the lab.

1. Are your company a manufacturer or a trade company?
We are a manufacturer with many years exporting experience. Our factory is located in Jiangsu province.

2. Can your products be customized?
We accept OEM &ODM orders. Actually most of our products are customized. We will try our best to fulfill your requirements about the material, the size, the printing.

3. How can I get sample from you?
Just send us your requirements, then we will send samples accordingly.

4. How many days will samples be finished? How about mass products?
Generally, we need 5-7 days to finish the sample production.As for the mass products, it depends on your order quantity.

5. How do you control lens quality?
Producing process is in vacuum dust-free shop, like prepare material, mixed material and take out .Four times quality checking during production process.