product

1.50 1.49 progressive short corridor hmc optical lens

Short Description:

Specification

Progressive Regular Short Corridor(1.49)

-Add Power:-8.00 to +3.00 in 0.25D steps.

1.499 S/F PROGRESSIVE(ADD+1.00~+3.00)
DIA(mm) NOMINAL CURVE TRUE CURVE BACK CURVE CT(mm) ET(mm) SAG(40mm) RX RANGE
71-14/17mm 1.00 1.62 5.60 6 10 0.64 -8.00~-4.25
71-14/17mm 3.00 3.00 3.60 6 6 1.20 -4.00~-0.75
71-14/17mm 5.00 5.00 3.60 8 6 2.02 -0.50~+2.50


Product Detail

Product Tags

Quick Details

Place of Origin:CN;JIA Brand Name:Hongchen
Model Number:CR 39 1.499 Lenses Material:Resin
Vision Effect:Progressive Coating:HMC
Lenses Color:Clear lens:cr lenses
corridor:short Coating Color:Green
Index:1.49 Diameter:CR39
Specific Gravity:1.32 Function:progressive
ABBE Value:58 Delivery Time:Within 20 Days

CR-39 Lens Property

HONGCHEN CR-39 lenses use the true value of imported CR-39 monomer, the longest history of organic material and the most widely sold lens globally. This determines that HONGCHEN CR-39 lenses have the most 
outstanding optical features:

Hardness
The best among other organic lenses in hardness and toughness, high impact resistance.
Transmittance
The highest transmittance as compared with other organic lenses.
ABBE
The highest ABBE value providing the most comfortable visual experience.
Consistency
The most reliable and consistent lens product physically and optically.

CR39 (Plastic) Advantage

 -Lightweight organic material

 -Very good optical performance even for high prescriptions

 -Suitable for working with chemicals and paints / varnishes

 -Mechanical strength class "S" (falling ball test)

 -Good scratch resistance due to hard layer (optional)

 -The middle of the lens should always be thicker in order to meet the requirements for tensile strength

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Regular

1.5 index

Our regular 1.5 index CR39 lenses are plastic and suitable for general purpose. These lenses offer outstanding optical quality and durability.

CR39 is most basic lens type. It’s ideal for normal prescriptions. 

This lens is made of CR-39 plastic, which is a polymer (a large molecule composed of many repeated subunits, known as monomers). HEre’s a fun fact, CR-39 gets its name because it was the 39th formula of a plastic developed by the Columbia Resins (hence “CR”) project in 1940.

Packaging & Delivery

Delivery & Packing

Envelops(For choice):

1) standard white envelops

2) Our brand "Hongchen" envelops

3) OEM envelops with customer's Logo

Cartons: standard cartons:50CM*45CM*33CM(Every carton can include aroud 500 pairs ~600 pairs finished lens, 220pairs semi-finished lens.  22KG/CARTON,0.074CBM)

Nearest shipping Port  : Shanghai port

Delivery Time :

Quantity(Pairs)

1 - 1000

>5000

>20000

Est. Time(days)

1~7 days

10~20days

20~40 days

If you have any special requirements, can contact with our sales people, we can do all series service similar as our Domestic brand.

 

Shipping&Package

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Video Description

Product Details

1.49 Progressive HMC
Refractive Index 1.49
Monomer CR39 
Abbe Value  58
Specific Gravity  1.32
Transmission 98-99% 
Coating  Hard and AR coating for both lens surface ,high anti-scratch
Coating colour choice Green/Blue
Guarantee 1-Year
Corridor Lenght 12mm&14mm
 Power range:SPH:0.00~+3.00  0.00~-3.00  ADD:+1.00~+3.00

Technical Date

Progressive Lens Technical Data Sheet
SPH ADD Φ72mm SPH ADD Φ72mm
(+) (+) F.C. B.C. E.T. (-) (+) F.C. B.C. C.T.
0.00 1.00-3.00 3.00 3.00 2.2 0.25 1.00-3.00 3.00 3.25 2.2
0.25 1.00-3.00 3.00 2.75 2.2 0.50 1.00-3.00 3.00 3.50 2.0
0.50 1.00-3.00 3.00 2.50 2.2 0.75 1.00-3.00 3.00 3.75 2.0
0.75 1.00-3.00 3.00 2.25 1.8 1.00 1.00-3.00 3.00 4.00 2.0
1.00 1.00-3.00 3.00 2.00 1.8 1.25 1.00-3.00 3.00 4.25 1.7
1.25 1.00-3.00 3.00 1.75 1.6 1.50 1.00-3.00 3.00 4.50 1.7
1.50 1.00-3.00 3.00 1.50 1.6 1.75 1.00-3.00 3.00 4.75 1.7
1.75 1.00-3.00 3.00 1.25 1.6 2.00 1.00-3.00 3.00 5.00 1.7
2.00 1.00-3.00 3.00 1.00 1.6 2.25 1.00-3.00 3.00 5.25 1.5
2.25 1.00-3.00 3.00 0.75 1.6 2.50 1.00-3.00 3.00 5.50 1.5
2.50 1.00-3.00 3.00 0.50 1.6 2.75 1.00-3.00 3.00 5.75 1.5
2.75 1.00-3.00 3.00 0.25 1.6 3.00 1.00-3.00 3.00 6.00 1.5
3.00 1.00-3.00 3.00 0.00 1.6          
 TOLERANCE OF FRONT/BACK CURVE: ±0.25
 E.T.TOLERANCE:  ±0.3
 POWER TOLERANCE: S 0.00/ ADD+1.00~ +3.00  ±0.08D
S -0.25~ -3.00/ ADD+1.00~ +3.00  ±0.09D
S +0.25~ +3.00/ ADD+1.00~ +3.00  ±0.09D

 

Product Feature

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.

 

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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.

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 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:

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  • 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.)

Coating Choice

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Hard Coating/

Anti-scratch Coating

Anti-reflective Coating/

Hard Multi Coated

Crazil Coating/

Super Hydrophobic Coating

 Avoid ruining your lenses quickly protect them from getting scratched easily Reduce glare by eliminating the reflection from the surface of the lens not to be confused with palarized Make the surface of the lenses super   hydrophobic, smudge resistance,  anti static, anti scratch, reflection and   oil
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Productive Process

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Production Flow Chart

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Company Profile

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Company Exhibition

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Certification

Packing&Shipping

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