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1.56 HMC UV420 Blue Block Photochromic Lens Optical Lenses
Home » Products » Blue Cut Lens/Blue Cut Spin Photochromic Lens » 1.56 HMC UV420 Blue Block Photochromic Lens Optical Lenses
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1.56 HMC UV420 Blue Block Photochromic Lens Optical Lenses

  • 1.56 UV420 Blue Block Photogrey HMC AR
  • Aogang
  • 1.56 UV420 Blue Block Photogrey HMC AR
  • 1.56
  • 65/70/75MM
  • NK55,imported from Japan
  • 42
  • 1.15
  • 97%
  • HMC/AR/Anti-Reflective
  • SPH: -20.00~ +20.00, CYL:0.00~ -6.00
Quantity:

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Product Description


Refractive index1.56
Diameter65/72mm
Monomer

NK55, imported from Japan

Abbe value42
Specific Gravity1.15
Transmission

> 97%

Power range

SPH: 0~ -20.00, 0~ +20.00

      CYL: 0~ -6.00

Hard and AR coating for both lens surface

 Function: Blue block, protect eyes from the damage of ultraviolet and blue light.

Suitable for people who spend a lot working with computer, mobile phone, laptop. Tablet PC.






Features

Blue Block Lens: 

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Photochromic: 
 

1. The definition of photochromic lens

 

Photochromic lenses, often called transitions 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.

 

Photochromic lenses are made of many lens materials including plastic, glass or polycarbonate. They are typically used as sunglasses that conveniently switch from a clear lens indoors, to a sunglasses depth tint when outdoors, and vice versa.

 

Brown / Photo Grey Photochromic Lens For Outdoor Activities 1.56 Hard Multi Coated

2. Outstanding Color Performance

 

1) Fast speed of changing, from white to dark and vice versa.

2) Perfectly clear indoors and at night, adapting spontaneously to varying light conditions.

3) Very deep color after change, the deepest color can be up to 75~85%.

4) Excellent color consistency before and after change.

 

3. UV Protection


Perfect blockage of harmful solar rays and 100% UVA & UVB.
 

4. Durability of Color Change


Photochromic molecules are equally bedded in lens material, and are activated year by year, which ensure durable and consistent color change.

 

You might think all of this would take quite a bit of time, but photochromic lenses respond remarkably quickly. About half the darkening happens within the first minute and they're cutting out about 80% of sunlight within 15 minutes.

 

Imagine lots of molecules suddenly darkening inside a clear lens. It's a bit like closing the blinds in front of your window on a sunny day: as the slats turn, they progressively block out more and more light.


Coating

Hard Coating : can protect the uncoated lenses from scratch resistance .
 
AR Coating : also called hard multi coated , can protect the lens effectively from reflection, enhance functional and charity of your vision .
 
Super Hydrophobic Coating : also called crizal coating , can make the lenses waterproof, antistatic, anti slip and oil resistance. Generally speaking , super hydrophobic coating can exist 6~12 months.

1.56 HMC Blue Cut Prescription Eyeglass Lenses For Anti-Blue Ray Green Coating


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