Hard Coating Transition 1.56 Photochromic Semi Finished Lens Blanks For Anti-UV Rays
I. Technical Data:
| Refractive Index(25ºC): n(d)=1.56; n(e)=1.558 Abbe Value: 36.8 Specific Gravity(25ºC): 1.27 Color: Brown, Grey | Nominal Base Curve | True Curve | C.T(mm) | E.T(mm) | Front Side | Back Side | Dia(mm) | | Curve | Radius | Curve | Radius | 70 | | 0.00 | | | | | | | | | 0.50 | | | | | | | | | 2.00 | 2.25 | 12.00 | 12.00 | 2.25 | 229.30 | 3.00 | 229.30 | | 4.00 | 4.25 | 10.00 | 10.00 | 4.25 | 131.40 | 4.00 | 131.40 | | 6.00 | 6.00 | 10.00 | 10.00 | 6.00 | 88.81 | 6.00 | 88.81 | | 8.00 | 8.00 | 10.00 | 10.00 | 8.00 | 63.88 | 8.00 | 63.88 | Refractive Index(25ºC): n(d)=1.56; n(e)=1.558 Abbe Value: 36.8 Specific Gravity(25ºC): 1.27 Color: Grey | Nominal Base Curve | True Curve | C.T(mm) | E.T(mm) | Front Side | Back Side | Dia(mm) | | Curve | Radius | Curve | Radius | 75 | | 0.50 | 0.46 | 11.70 | 17.84 | 0.46 | 1194.38 | 5.33 | 103.08 | | 1.50 | 1.44 | 10.70 | 15.57 | 1.44 | 381.54 | 5.33 | 103.08 | | 2.50 | 2.47 | 11.50 | 15.11 | 2.47 | 222.44 | 5.33 | 103.08 | | 3.50 | 3.51 | 9.50 | 11.79 | 3.51 | 156.53 | 5.33 | 103.08 | | 4.50 | 4.50 | 10.80 | 11.79 | 4.50 | 122.09 | 5.33 | 103.08 | | 5.50 | 5.51 | 9.50 | 9.12 | 5.51 | 99.71 | 5.33 | 103.08 | | 6.50 | 6.49 | 9.70 | 9.39 | 6.49 | 84.66 | 6.37 | 86.25 | | 7.50 | 7.40 | 9.50 | 7.73 | 7.40 | 74.25 | 6.37 | 86.25
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II. Semi finished lens:
Minus and plus semi-finished lenses
| Lenses with different dioptric powers can be made from one semi-finished lens. The curvature of the front and back surfaces indicates whether the lens will have a plus or minus power. Semi-finished lens is the raw blank used to produce the most individualized RX lens according to the patient's prescription. Different prescription powers request for different semi-finished lens types or base curves. Rather than just the cosmetic quality, semi-finished lenses are more about the inner quality, such as precise and stable parameters, especially for the prevailing freeform lens. |  |
III. Photochromic lens:
1) What is the photochromic lens?
When photochromic lenses are exposed to UV light, trillions of photochromic molecules in the lens begin to change structure. This reaction is what causes the lenses to darken.
All lenses that adapt to light use photochromic molecules; the superiority of brand technology lies in our exclusive, patented formulas. Each formula is integrated into the surface of the lens. These molecules constantly and smoothly recalibrate so the optimal amount of light reaches your eyes whether you’re in bright sunlight, under cloud cover or indoors.
Photochromic lenses, often called or reactolights, darken to a sunglasses tint when exposed to sunlight, or U/V ultraviolet, and return to a clear state when indoors, away from U/V light.
2) How do photochromic lens work?
| Tiny molecules of silver halide and chloride are embedded within a photochromic lens which is invisible and clear until exposed to sunlight/UV rays. A chemical process takes place when exposed to sunlight/UV and the molecules effectively move, change shape and absorb the light. This process changes the molecules and they darken to a sunglasses shade/tint. |  |
IV. Hard coating:
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| Hard Coating (HC): To enhance the hardness of the lens to prevent the substrate scratch |
V. Packing & Shipping:
| Envelope | Carton | Lenses Pair | Size | Weight | Lead Time |
| Choice 1 | White Envelope | Stand Export Carton | Finished optical lens: 1 pcs/envelope, 500 pairs/carton | 38*48*35 cm | 21 KG | Depend on the order quantity |
| Choice 2 | Your design with your logo | Semi-finished optical lens: 1 pcs/envelope, 100 pairs/carton | 15 KG |
| Carrier | We can choose for you or you offer us your cooperative company |
| Payment terms | 30% T/T in advance, the balance before shipment |
| All the numbers provided above are estimated number, the actual number need to be measured according to the order you make. |
VI. Why choose us:
| 1. Q: Are your company a manufacturer or a trade company?
A: We are a manufacturer with many years exporting experience. Our factory is located in Jiangsu province. 2. Q: How can I get sample from you ?
A: Just send us your requirements , then we will send samples accordingly .
3. Q: Can your products be customized?
A: 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. Q: How many days will samples be finished? How about mass products?
A: Generally, we need 5-7 days to finish the sample production.
As for the mass products, it depends on your order quantity.
5. Q: Do you have stock products to sell?
A: Yes.We have a lot of inventory . |  |
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1.56 Semi Finished Photochromic Lenses Blanks Anti UV Ray Hard Coating Images
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