Semi-Finished 1.56 Progressive Photogrey Blue Cut Blue Coating Hmc Optical Lens

• Function: UV420, Blue Block, Blue Cut, Photogrey
• Age Group: Children, Adults
• Gender: Unisex, Man, Woman, Men, Women
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Suitable for Face: Oval Face, Long Face, Square Face, Round Face
• Material: Cr39, Regin, Plasitc, Sr56, Koc, Nk55
• Type: Anti Reflective, Photogray, Photobrow
• Coating: Hmc, Hc, UC, Shmc, EMI, Spin Coating Photogray
• Lenses Color: Clear, White, Grey
• Index: 1.56
• Specific Gravity: 1.28
• Design: Spherical
• Abrasion Resistance: 6~8h
• Diameter: 65/70mm
• Abbe Value: 40.5
• Transmission: 86%
• Coating Color: Green, Blue, Gold
• Power Range: +3.00/Add1.00~+3.00;-2.00/Add1.00~+3.00
• Ophtalmic Instrument: Available
• Eyeglass Frame: Available
• Polarized Lens: Available
• Glasses Lens: Available
• Polycarbonate Lens: Available
• Transport Package: Carton
• Specification: 75mm
• Trademark: Dingxin
• Origin: China
• HS Code: 9001509100
• Production Capacity: 50000/PCS/Day
• Package Size: 50.00cm * 33.00cm * 41.00cm
• Package Gross Weight: 20.000kg

Product Description

Semi-finished 1.56 Progressive Photogrey Blue Cut  optical lens
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Features :

★Extreme clear in doors,85% darkness out outside.

★Darkening to 85% within 30 seconds, fading to clear  within 60 seconds.

★Harmful UV rays 100% eliminated.

★Durable using life, consistent colour changing for 2 years.

 

WDO Product Description

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What is blue light?

   Sunlight contains red, orange, yellow, green and blue light rays and many shades of each of these colors, depending on the energy and wavelength of the individual rays (also called electromagnetic radiation). Combined, this spectrum of colored light rays creates what we call "white light" or sunlight.

   Generally, scientists say the visible light spectrum comprises electromagnetic radiation with wavelengths ranging from 380 nanometers (nm) on the blue end of the spectrum to about 700 nm on the red end. (By the way, a nanometer is one billionth of a meter - that's 0.000000001 meter!)

   Blue light generally is defined as visible light ranging from 380 to 500 nm. Blue light sometimes is further broken down into blue-violet light (roughly 380 to 450 nm) and blue-turquoise light (roughly 450 to 500 nm).

Blue Cut Lenses

Blue cut lenses feature a special coating that reflects harmful blue light and restricts it from passing through the lenses of your eyeglasses. Blue light is emitted from computer and mobile screens and long term exposure to this type of light increases the chances of retinal damage. Hence, wearing eyeglasses having blue cut lenses while working on digital devices is a must as it may help in reducing the risk of developing eye related problems.

 

  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.

What Semi Finished Lens Blanks Can do?

Spectacle lenses production units that transform semi-finished lenses into finished lenses according the precise characteristics of a prescription.
The customization work of laboratories enables us to provide a wide variation of optical combinations for wearer needs, especially as regards the correction of presbyopia. Laboratories are responsible for surfacing (grinding and polishing) and coating (coloring, anti-scratch, anti-reflective, anti-smudge etc.) the lenses.

Progressive Short Corridor                                                                             
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Technical Data:      • Fitting Cross:+2.0mm up from center      • Short corridor (14mm to full addition power)      • Distance Circle:+8.0mm up from center      • Near Area Circle:12.0mm down the center      • Minimum fitting height of 15mm      • Low distortion soft, aspheric design      • Individual designs for left and right eyes      Availability :      • Finished Lenses and Semi-Finished(S/F) Lenses      • Base Curves : 1.50, 3.50,5.75, 7.75      • Addition Powers : 1.00 to 3.00 in 0.25D steps      • Finished Power Availability:-2.00 to +3.00,Add +1.00 to +3.00.

 

1.56 PHOTOCHROMIC S/F PROGRESSIVE SHORT CORRIDOR LENS
 

Diameter	Nominal	True Curve	Radius	Back	Radius	Center	Edge	MRP	Seg	Fitting Cross	Sag at	RX Range
	Curve	(n=1.56)		Curve		mm	mm	Dec.	Inset	above MRP	50mm
75mm	150	1.50	374.10	5.60	99.89	7.5	10.0	0	2.25	2	0.83	-3.25D/-7.50D
75mm	350	3.63	154.20	6.92	80.95	6.0	10.0	0	2.25	2	2.02	-1.00D/-3.00D
75mm	575	6.08	92.10	6.92	80.95	6.5	7.0	0	2.25	2	3.42	-0.75D/+2.25D
75mm	775	8.25	67.87	5.60	99.89	11.5	5.0	0	2.25	2	4.73	+2.50D/+5.50D

About the Coating                                                                                             
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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

The Lens Details                                                                                             
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• Reduced Costs   

    Photochromic lenses can provide vision for both indoors when clear and providing sunglasses protection outside

• UV Protection  

   Photochromic lenses provide full protection against the harmful UV rays of the sun

• Eye Health   

   Photochromic lenses can reduce your exposure to the suns harmful UV rays lower the risk of cataracts or other eye relateds problems

Our Factory


WDO (WEIHAI DINGXIN OPTICAL) is one of the most Potential Finished and Semi-Finished Optical Lenses factory located in Weihai City, China.

Our Key & Advantage Products:
Single Vision Lens:CR-39;1.56;1.60;1.67;1,74
Bifocal Lens: CR-39; 1.56;1.60
Progressive Lens: CR-39; 1.56; 1.60
Functional Lens: Blue Cut, Photochromic; Photomagic +UV420cut, Polarized; Polycarbonate
RX Service: Free Form; Special Coating; Special Power Range
Optical Equipment;
Frames
 

 

Quality Assurance                                                                                           
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Packing and shipping