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Far / Near Vision 1.5 Progressive Lens Blank , CR39 Progressive Eyeglass Lenses

Jiangsu Aogang Optical Glasses Co., Ltd.

Far / Near Vision 1.5 Progressive Lens Blank , CR39 Progressive Eyeglass Lenses

Brand Name : Aogang Optics

Model Number : Semi Finished Lens Blanks

Certification : CE/FDA/ISO9001

Place of Origin : China

MOQ : 100 pairs

Price : negotiation

Payment Terms : T/T, Western Union, L/C, D/A, D/P, MoneyGram,Paypal

Supply Ability : 40,000 pieces per day

Delivery Time : 10~30 days, depend on your quantity

Packaging Details : 1) Standard white envelope 2) color envelop with customer's design

Refractive index : 1.499

Diameter : 75mm

Abbe value : 58

Specific Gravity : 1.32

Corrdior : 14&17mm

Coating : AR coated

Power range : Base: 2/4/6/8 ADD: +1.00~+3.50

Garantee : 3~5 years

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SF CR-39 1.499 Progressive AR Coating Semi Finished Lens Blanks For Far And Near Vision

I. Technical Data:

CR-39 Semi Finished Progressive(14mm) Lens

Material: CR-39 Index Resin(Ne=1.499, Abbe=58, Specific Gravity=1.32)

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

Corridor Lenghth=14mm

CONVEX SURFACE CONCAVE SURFACE
Mominal Curve Actual Curve

Sag

(sagitta: 40mm)

Sag

(sagitta:50mm)

Radius Radius CT(mm) ET(mm) Dia(mm)
2.00 2.68 1.07 1.67 185.95 126.50 10.5 12.5 75
4.00 4.04 1.61 2.52 123.53 83.00 9.8 13.2
6.00 6.01 2.40 3.78 83.03 83.00 10.7 11.0
8.00 7.34 2.94 4.65 68.00 83.00 12.4

10.0

Add Prism(Down):

ADD 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.25 3.50
Prism 0.66 0.83 0.99 1.16 1.32 1.49 1.65 1.82 1.98 2.15 2.31

Prescription Range:

Nominal Base Curve Recommended Diopter in Base Cylinder
2.00 -10.00 to -4.25 0~-6.00
4.00 -4.00 to +2.00 0~-6.00
6.00 +2.25 to +4.50 0~-6.00
8.00 +4.75 to +7.00 0~-6.00

II. Semi finished lens:

Far / Near Vision 1.5 Progressive Lens Blank , CR39 Progressive Eyeglass Lenses

◆ The definition of a semi-finished lens

Semi-finished lenses is the most primitive state of the lens, the customer can buy finished semi-finished lenses according to the required degree of finished lenses to polish, so only semi-finished lenses camber, there is no degree. Different prescription powers request for different semi-finished lens types or base curves.

◆The process of semi finished lens

The starting point for freeform production is a semi-finished lens, also known as a puck due to its resemblance to an ice hockey puck. These are produced in a casting process that is also used to manufacture stock lenses.

III. Progressive lens:

A progressive lens gives you three vision powers in one seamless lens for a more natural and flattering way to see your world. If you need more than one lens strength to read, do computer work or drive, progressives let you can see clearly at any distance with one pair of glasses. You simply adjust your head position to see three ranges of distance. Bring your head up to see far away; look straight ahead for mid-range vision, and point your nose down to read or do close-up work, like texting.

Far / Near Vision 1.5 Progressive Lens Blank , CR39 Progressive Eyeglass Lenses

IV. Tips of the progressive lens:

Like anything new, adjusting to progressives can be frustrating, but don’t worry. Here are a few tips that’ll have you seeing clearly all the time, at every distance, with one pair of glasses.

Far / Near Vision 1.5 Progressive Lens Blank , CR39 Progressive Eyeglass Lenses

• Resist the temptation to switch back and forth to your old glasses—this slows down the process of retraining your brain to focus through new lenses.

• Wear your glasses high on your nose, and close to your eyes to maximize the range of visibility through each lens.

• Move your head, not your eyes. Point your nose directly at what you’d like to see and bring it into focus by moving your chin up or down.

• Practice! Grab a magazine to read while watching TV. Going back and forth between the two is a great way to practice and to speed up your transition.

V. HMC(AR) coating:

Far / Near Vision 1.5 Progressive Lens Blank , CR39 Progressive Eyeglass Lenses

The most important benefits of anti-reflective (AR) coating may be the unseen advantage–relief from fatigue and eyestrain caused by glare. AR does have a big cosmetic advantage, but removing the distracting reflections and ghost images that contribute to eyestrain clearly is a bigger benefit. Being more comfortable in anything we do is a benefit, especially when wearing glasses.

IV. Packing&Shipping:

Envelop Choice 1 Choice 2
White envelop

color envelop with customer design

weight: 157g size: 9*9*9cm

Outer box standard export paper carton 38cm*48cm*35cm(0.064 CBMS)
about 500 pairs of finished lenses per carton, 21kgs about 100 pairs of semi-finished lensesper carton, 15kgs
Lead time Depend on the quantity
Carrier We can choose for you or offer us your cooperative company
Payment terms 30% T/T in advance, the balance before shippment

VI. Why choose us?

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. How can I get sample from you?

Just send us your requirements, then we will send samples accordingly.

3. 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.

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. Do you have stock products to sell?

Yes.We have a lot of inventory.

Far / Near Vision 1.5 Progressive Lens Blank , CR39 Progressive Eyeglass Lenses


Product Tags:

optical lens blanks

      

anti glare transition lenses

      
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