Home > Watches >

1.56 Round Top Semi Finished Lens Blanks , Blocking Blue Light Eyeglass Lens Blanks

Categories Blue Cut Lenses
Brand Name: Aogang Optics
Model Number: Blue Cut Lens
Certification: CE/FDA/ISO9001
Place of Origin: China
MOQ: 500 pairs
Price: negotiation
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram. Paypal
Supply Ability: 40,000 pieces per day
Delivery Time: 10~30 days, depend on the order quantity
Packaging Details: 1) Standard white envelope 2) Color envelop with customer design
Index: 1.56
Diameter: 70 MM
Monomer: NK55 (imported from Japan)
Round top segment: 28
Abbe Value: 42
Specific Gravity: 1.15
Transmission: > 97.8%
Power Range: ADD: +100~+300
  • Product Details
  • Company Profile

1.56 Round Top Semi Finished Lens Blanks , Blocking Blue Light Eyeglass Lens Blanks

High Transmission​ 1.56 Round Top Semi Finished Lens Blanks With Hard Multi Coating For Blocking Blue Light

I. Techinical Data:

1.56 Semi Finished Round Top Bifocal Lens Blanks

Material: 1.56 Index NK55 Resin

(Ne=1.549, Abbe=38, Specific Gravity=1.28)

Segment Placement: 5mm down -5mm in

Add Power: +1.00 to +3.50 in 0.25D steps

Segment Size: 28mm

CT/ETFrong sag
Ring 50mm
RX Range

II. Specification

MonomerNK55 (imported from Japan)
Diameter70 MM
Round top segment28
Abbe Value42
Specific Gravity1.15
Transmission> 97.8%
Power RangeADD: +100~+300

III. Features

1. Round Top Bifocal Lens

Bifocal means two focuses literally. Multifocals are eyeglass lenses that enable you to see clearly at two different distinct distances while only using one lens. Modern day bifocal lenses are still made up of two parts. The top of the lens is made for seeing things at a distance, while the bottom part of the lens is made for viewing things close up, making focusing on books or menus much simpler. The two sections of the lens are usually separated by a visible line. The segment of the lens devoted to correcting near-vision can be in several shapes including a half-moon, a round segment, a narrow rectangular area, or the full bottom half of the bifocal lens.

2. Blue Cut Lenses

♦What is the blue light?

Blue light is not light which looks blue, it is a light which wavelength from 400-500,it create more damage to people's than another light.

♦ The harm of blue light:

The latest medical research has found that blue light (not ultraviolet) will cause Macular degeneration of retina and blindness if eye cells was exposed in the blue light for long time, the pigment moleculesin cells would spur photo toxicity and make damages to cell, which is the main cause of blindness.Blue light occupies most part of the visible light, whose short wave and high Energy stimulates eyes and causes photo and eyestrain, meanwhile the blue light bled into red blossoms and green leaves too much will also reduce the sharpness of color contrast.

♦ Blue Cut Lenses

Blue Cut Lenses is to block and protect your eyes from high energy blue light exposure. Blue cut lens effectively blocks 100% UV and 40% of the blue light, reduces the incidence of retinopathy and provides improved visual performance and eye protection, allowing wearers to enjoy the added benefit of clearer and sharper vision, without altering or distorting color perception.

IV. Coating Choice:

Hard Coating: Also known as HC coating, is to make the uncoated lenses are easily subjicted andexposed to scratches

AR Coating: Also known as HMC or Hard Multi Coating, is to protect the lens effectively from reflection, enhance functional and charity of your vision

Hydrophobic Coating: Also known as SHMC or Crizal Coating, is to make the lenswaterproof, antistatic, anti slip and oil resistance

V. Packing & Shipping

♦ Packing:

1. Envelope:

a) standard white envelope

b) color envelope with customer design (Weight: 157g, Size: 9*9*9cm)

2. Outer Box

a) standard export paper carton (Size: 38*48*35cm, 0.064CBMS)

b) Include about 500 pairs of finished lens (Weight: about 21kg) or include about 100 pairs of 100 semi finished lens (Weight: about 15kg)

♦ Shipping

1. Samples:

a) Delivery time: 3-7 days (by Fedex, DHL, UPS, TNT etc.)

b) Sample is free, but according to our company rule, the shipping cost need to be assumed by customers.

2. Batch Goods:

a) Delivery time: 10-30 days (depend on your quantity, by air, sea or express)

b) Carrier: We can choose for you or offer us your cooperative company

VI. Why Choose Us

Jiangsu Aogang Optical Glasses Co.,Ltd is a professional optical lens manufacturer for more than 10 years in China. All lenses are exported to European countries, Japan, Korea, North and South America, Middle East, Southeast Asia and Africa market. We guarantee the quality to all buyers all over the world, and got a high reputation about quality from buyers in the past 8 years exporting time. In Aogang Optical, you can find high quality lenses with the most competitive prices.

♦. Customer service begins tracking the processing status of products daily until you receive the product and confirm the quality.

♦. You could contact us by SKYPE, Whatsapp, e-mail, voice phone, message at any time!

♦. We provide free samples. Just send us your requirements, then we will send samples accordingly. However, according to our company rule, our customers need to assume the shipping cost.

♦. Our payment term: 30% T/T in advance, the balance before shippment

♦. We guarantee the quality to all buyers all over the world, and got high reputation about quality from buyers in the past 8 years exporting time.

Quality 1.56 Round Top Semi Finished Lens Blanks , Blocking Blue Light Eyeglass Lens Blanks for sale
Send your message to this supplier
Enter your email please.
To: Jiangsu Aogang Optical Glasses Co., Ltd.
Characters Remaining: (0/3000)
Inquiry Cart 0
  • Haven't found right suppliers
  • Our buyer assistants can help you find the most suitable, 100% reliable suppliers from China.
  • And this service is free of charge.
  • we have buyer assistants who speak English, French, Spanish......and we are ready to help you anytime!
  • Submit Buying Request
    Contact Us Quickly