Photochromic Lens - Optical Lenses from Gioever China

We Supply:

hard resin, polycarbonate or mineral glass lenses
index 1.499,1.523(mineral),1.59(PC),1.61,1.70(mineral)
single vision, bifocal or progressive
uncoated, hard coated, AR coated, EMI coated, etc.
regular stock or RX power range

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Photochromic Lens

Diameter: 65mm, 70mm
Index: Nd=1.542 Ne=1.545
Abbe Number: 38
Material: NC15R
Fading Speed: 30 seconds
Color: photobrown, photogrey, photogreen, photopink, photopurple, photoorange

Transmission Characteristics

Lens Type	Photo Grey		Photo Brown
Test State	Clear	Dark	Clear	Dark
Visible (380-780nm)	84%	20%	84.5%	21%
UV (280-380nm)	3%	1.5%	2.5%	1.5%

Finished Lens Power Range:

CYL(-ON-)								(-)	ø	(+)	CYL(+ON-)
CYL(-ON-)								SHP		SHP	CYL(+ON-)
2.00	1.75	1.50	1.25	1.00	0.75	0.50	0.25	0.00		0.00	0.25	0.50	0.75	1.00	1.25	1.50	1.75	2.00
									0.00
									0.25
									0.50
									0.75
									1.00
									1.25
									1.50
									1.75
				70mm					2.00			65mm
									2.25
									2.50
									2.75
									3.00
									3.25
									3.50
									3.75
									4.00
									4.25
									4.50
									4.75
									5.00
									5.25
									5.50
									5.75
									6.00
									6.25
									6.50
									6.75
									7.00
									7.25
									7.50
									7.75
									8.00

SemiFinished Lens

Type

Single Vision

Flat-Top Bifocal

Progressive

Available Color

Brown,Grey,Blue, Green, Pink, Purple, Orange

Brown / Grey

Brown / Grey

Diameter (mm)

70

28/70

72

Base Curve

0.5D, 1D, 2D, 4D, 6D, 8D

2D, 4D, 6D, 8D

2D, 4D, 6D, 8D

Add. Power

N/A

0.00-3.00 step 0.25

0.00-3.00 step 0.25

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