Photo Chromatic Grey & Brown Blanks. Colour Fashion Blanks. Plano Fashion Colour Lenses. Lens Material Specifications Material Index Abbe Value Specific Gravity 1.556 36.60 1.19

 All transmission values for Plano lenses 2.3 mm thick.
 UV transmission averaged in the range 200 to 380 nm
 Visible transmission of activated lens was measured after 2 minutes of sun light activation.

	Indoors Transmission %	Activated Transmission %	Delta %	Transmission after 2 Minutes	% fade back after 3 Minutes	UV Transmission %
Blue	67.0	15.0	52.0	44.0	55.8	0.26
Brown	87.0	28.0	59.0	65.0	62.7	0.58
Grey	87.0	23.0	64.0	65.0	65.6	0.46
Green	75.0	18.0	57.0	52.0	59.6	0.22
Magenta	80.0	20.0	60.0	48.0	46.7	0.36
Orange	85.0	56.0	29.0	72.5	56.9	0.54
Purple	80.0	18.0	62.0	65.0	75.8	0.53
Red	67.5	40.0	27.5	60.0	72.7	0.14
Yellow	92.5	87.5	5.0	92.5	100.0	1.14

  All colours available as Plano non coated or hard coated dia 70 mm.
  All colours available in Base Curves 4.25 and 5.25, non coated or hard coated.

 Single Vision Blank Dimensions All Colours.

Nominal Base	CX-radius	Actual Curve (1.53)	Curve Ref 1.556	40mm Sag	50mm Sag	Center Thick	Edge Thick	Back Radius	Back Curve	Diameter
4.25	127.06	4.17	4.38	1.58	2.48	8.6	9.0	117.40	4.51	75.00
5.25	100.79	5.26	5.52	2.00	3.15	6.6	6.6	100.01	5.30	73.00

  available in Base Curves 4.25 and 5.25 non coated or hard coated.

 Single Vision Blank Dimensions Grey and Brown.

Nominal Base	CX-radius	Actual Curve (1.53)	Curve Ref 1.556	40mm Sag	50mm Sag	Center Thick	Edge Thick	Back Radius	Back Curve	Diameter
2.00	263.68	2.01	2.11	0.76	1.19	8.8	15.0	81.48	6.50	75.00
4.25	127.06	4.17	4.38	1.58	2.48	8.6	9.0	117.40	4.51	75.00
5.25	100.79	5.26	5.52	2.00	3.15	6.6	6.6	100.01	5.30	73.00
6.25	85.48	6.20	6.50	2.37	3.74	6.6	6.7	81.48	6.50	73.00
8.25	65.03	8.15	8.55	3.15	5.00	9.6	6.7	81.48	6.50	73.00

  available in Base Curves 2.00, 4.25, 5.25, 6.25, 8.25, non coated or hard coated.

 Progressive Concord Blank Dimensions Grey and Brown.

Nominal Base	Actual Front Curve *	Front Curve (1.498)	Front Curve (1.556)	Radius in mm	Back Radius	Back Curve *	Add Power	Edge Thick	Center Thick	Diameter **
1.50	1.60	1.50	1.68	331.45	81.79	6.48	0.75-3.50	14.0	7.90	75.00
3.00	3.21	3.02	3.37	164.95	81.79	6.48	0.75-3.50	12.0	8.20	75.00
5.25	5.31	4.99	5.57	99.87	81.79	6.48	0.75-3.50	8.0	6.20	75.00
7.00	6.86	6.45	7.20	77.25	81.79	6.48	0.75-3.50	8.0	8.90	75.00

 * Actual Front Curve and Back Curve in reference to Index 1.53
 ** 2.5 mm decentration allows for bigger frames