What are progressive lenses?
Progressive lenses are no-line multifocal eyeglass lenses that look exactly the same as single vision lenses. In other words,
progressive lenses will help you see clearly at all distances without those annoying (and age-defining) "bifocal lines" that are
visible in regular bifocals and trifocals.
- Product Details
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Quick Details
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Model Number:
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1.49 Semi Finished Single Vision
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Product Name:
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1.499 semi finished single vision
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Other name:
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1.49 semi finished
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Design:
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spherical
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Multi color:
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white
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Material:
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CR39
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Abbe Value:
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58
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Specific Gravity:
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1.32
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Transmittance:
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98~99%
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Abrasion Resistance:
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6~8H
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Diameter:
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55mm
Quick Details
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Size:
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/
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Place of Origin:
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Jiangsu, China
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Brand Name:
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CONVOX
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Model Number:
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1.49 Semi Finished Single Vision
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Product Name:
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1.499 semi finished single vision
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Other name:
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1.49 semi finished
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Design:
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spherical
-
Multi color:
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white
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Material:
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CR39
-
Abbe Value:
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58
-
Specific Gravity:
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1.32
-
Transmittance:
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98~99%
-
Abrasion Resistance:
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6~8H
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Diameter:
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55mm
Product Description
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Place of Origin:
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Jiangsu, China
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Brand Name:
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CONVOX
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Model Number:
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1.56
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Lenses Material:
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Resin
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Vision Effect:
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Progressive
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Coating:
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HMC, HMC EMI
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Lenses Color:
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Clear
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Refractive Index:
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1.56
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Diameter:
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70mm
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Monomer:
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NK55
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Abbe Value:
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38
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Specific Gravity:
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1.28
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Coating Choice:
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HC/HMC/SHMC
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Corridor Length:
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12mm&14mm
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Progressive lenses are line-free multifocals that have a seamless progression of added magnifying power for intermediate and near vision.
Progressive lenses sometimes are called "no-line bifocals" because they don't have this visible bifocal line. But progressive
lenses have a significantly more advanced multifocal design than bifocals or trifocals.
Premium progressive lenses (such as Varilux lenses) usually provide the best comfort and performance, but there are many other brands as well. Your eye care professional can discuss with you the features and benefits of the latest progressive lenses and help you find the best lenses for your specific needs.
Progressive lenses sometimes are called "no-line bifocals" because they don't have this visible bifocal line. But progressive
lenses have a significantly more advanced multifocal design than bifocals or trifocals.
Premium progressive lenses (such as Varilux lenses) usually provide the best comfort and performance, but there are many other brands as well. Your eye care professional can discuss with you the features and benefits of the latest progressive lenses and help you find the best lenses for your specific needs.
The power of progressive lenses changes gradually from point to point on the lens surface, providing the correct lens power for
seeing objects clearly at virtually any distance.
Bifocals, on the other hand, have only two lens powers — one for seeing distant objects clearly and a second power in the lower
half of the lens for seeing clearly at a specified reading distance. The junction between these distinctly different power zones
is defined by a visible "bifocal line" that cuts across the center of the lens.
seeing objects clearly at virtually any distance.
Bifocals, on the other hand, have only two lens powers — one for seeing distant objects clearly and a second power in the lower
half of the lens for seeing clearly at a specified reading distance. The junction between these distinctly different power zones
is defined by a visible "bifocal line" that cuts across the center of the lens.
Product Feature
Where is Blue Light in life?
As laptops, tablets and smartphones have become more and more integrated into our daily lives, it makes sense to be aware of any
potential negative effects they might have on our health. You’ve likely heard the term ‘blue light’ being bandied about, with suggestions it contributes to all kinds of nasties: from headaches and eye strain to straight-up insomnia.
potential negative effects they might have on our health. You’ve likely heard the term ‘blue light’ being bandied about, with suggestions it contributes to all kinds of nasties: from headaches and eye strain to straight-up insomnia.
Why we need blue block lens？
UV420 Blue Block Lens is a new generation of lens that takes a sophisticated approach to filtering the high-energy blue light
emitted by artificial lighting and digital devices without distorting color vision.
The aim of UV420 Blue Block Lens is to improve visual performance and eye protection with an advanced anti-reflection technology,
allowing you to enjoy much benefits.
emitted by artificial lighting and digital devices without distorting color vision.
The aim of UV420 Blue Block Lens is to improve visual performance and eye protection with an advanced anti-reflection technology,
allowing you to enjoy much benefits.
Progressive Lens Benefits
Progressive lenses, on the other hand, have many more lens powers than bifocals or trifocals, and there's a gradual change in power from point to point across the surface of the lens.
The multifocal design of progressive lenses offers these important benefits:
* It provides clear vision at all distances (rather than at just two or three distinct viewing distances).
* It eliminates bothersome "image jump" caused by bifocals and trifocals. This is where objects abruptly change in clarity and apparent position when your eyes move across the visible lines in these lenses.
* Because there are no visible "bifocal lines" in progressive lenses, they give you a more youthful appearance than bifocals or trifocals. (This reason alone may be why more people today wear progressive lenses than the number who wear bifocal and trifocals combined.)
The multifocal design of progressive lenses offers these important benefits:
* It provides clear vision at all distances (rather than at just two or three distinct viewing distances).
* It eliminates bothersome "image jump" caused by bifocals and trifocals. This is where objects abruptly change in clarity and apparent position when your eyes move across the visible lines in these lenses.
* Because there are no visible "bifocal lines" in progressive lenses, they give you a more youthful appearance than bifocals or trifocals. (This reason alone may be why more people today wear progressive lenses than the number who wear bifocal and trifocals combined.)
Products Show
Product Packaging
Packaging Details
1.56 progressive hmc lens packing:
envelops packing (For choice):
1)standard white envelops
2)OEM with customer's LOGO, have MOQ requirement
cartons: standard cartons:50CM*45CM*33CM(Every carton can include around 500 pairs lens,21KG/CARTON)
Port：SHANGHAI
1.56 progressive hmc lens packing:
envelops packing (For choice):
1)standard white envelops
2)OEM with customer's LOGO, have MOQ requirement
cartons: standard cartons:50CM*45CM*33CM(Every carton can include around 500 pairs lens,21KG/CARTON)
Port：SHANGHAI
Shipping & Package
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