NK55 1.56 Progressive Multifocal Prescription AR Coating Eyeglass Lenses With Japan Monomer
I. Specifications:
| Index | 1.56 | Diameter | 75mm |
| Monomer | NK55, imported from Japan | Abbe Value | 37.5 |
| Corridor | 12&14mm | Specific Gravity | 1.28 |
| Transmission | 97% | Guarantee | 3~5 years |
| SPH | 0.00~+-3.00 | ADD | +1.00~+3.50 |
II. Progressive Lens:
- The Definition Of Progressive Lens
Progressive spectacle lenses, also called progressive addition lenses (PAL), progressive power lenses, graduated prescription lenses, and varifocal or multifocal lenses, are corrective lenses used in eyeglasses to correct presbyopia and other disorders of accommodation. They are characterised by a gradient of increasing lens power, added to the wearer's correction for the other refractive errors. |  |
The gradient starts at the wearer's distance prescription, at the top of the lens and reaches a maximum addition power, or the full reading addition, at the bottom of the lens. The length of the progressive power gradient on the lens surface depends on the design of the lens, with a final addition power between 1.00 and 3.50 dioptres. The addition value prescribed depends on the level of presbyopia of the patient. In general the older the patient, the higher the addition.
- Natural Vision With No "Image Jump"
The visible lines in bifocals and trifocals are points where there's an abrupt change in lens power. When a bifocal or trifocal wearer's line of sight moves across these lines, images suddenly move, or "jump." The discomfort caused by this "image jump" can range from being mildly annoying to creating nausea.
Progressive lenses are line-free and have a smooth transition in lens power for clear vision at all distances.
 | - Progressive Lenses For All Frames And Lifestyles
1. Wider zones of clear vision. In today's progressive lenses, the size of the zones for computer use and reading has been increased. And for computer users, special occupational designs greatly expand the intermediate zone for enhanced comfort at the computer. 2. More comfort for active wear. With early progressive lens designs, first-time wearers frequently noticed soft blur and other peripheral aberrations that could give the sensation of movement or "swim" during quick head turns. |
3. Compatibility with smaller frames.
In early progressive lens designs, the power changes within lenses required them to be relatively large. This limited frame selection to larger styles.
III. Progressive Products Catalog:
| INDEX | TYPE/COAT | DIA/COR
(MM) | POWER RANGE |
| SPH | ADD |
| 1.499 | PROG UC | 75/14&17 | 0.00~+3.00 0.00~-3.00 | +1.00~+3.50 |
| PROG HMC | 75/14&17 |
| 1.56 | PROG HMC | 75/12&14 |
| PG/BX PROG HMC | 75/12&14 |
| 1.59 PC | PROG HC | 75/28 | 0.00~+2.00 0.00~-2.00 |
| PROG HMC | 75/28 |
V. Our factory:
VI. Packing&Shipping:
| Packing |
| 1. Envelope | 2. Outer Box |
| standard white envelope | a) standard export paper carton (Size: 38*48*35cm, 0.064CBMS) |
| color envelope with customer design (Weight: 157g, Size: 9*9*9cm) | Include about 500 pairs of finished lens (Weight: about 21kg) | Include about 100 pairs of 100 semi finished lens (Weight: about 15kg) |
| Shipping |
| 1. Samples: | 2. Batch Goods: |
| Delivery time: 3-7 days (by Fedex, DHL, UPS, TNT etc.) | Delivery time: 10-30 days (depend on your quantity, by air, sea or express) |
| Sample is free, but according to our company rule, the shipping cost need to be assumed by customers. | Carrier: We can choose for you or offer us your cooperative company |
VII. Purchase Process:
1. If you need the samples, we will check the samples fee and the shipping cost, and we will delivery the samples to you in three days after we receive the payment.
If you do not need the samples, we can send the price list to you.
2. If you are satisfied with our samples or the price list, you can show us your order list.
3. We will do a proforma invoice which show you the total cost including the goods fee, shipping cost, the size of the lenses and some other important information.
4. We will start the order when we receive your despoit, the 30% of the total cost.
5. We need about 15~40 days to produce the order which up to your quantity, and keep update the producing process to you in time.
6. When we finish the producing, we will inform you to pay for the rest of the money. And we will delivery to you asap when we receive the balance.
7. We will offer the tracking number and the documents for you to clearance at customs.
Product Tags:
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Multifocal NK55 1.56 Progressive Spectacle Lenses , AR Coating Progressive Vision Lenses Images
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