Cyanine glass

Violet glass charactersstics
Type	Thickness	A[2856k]			D65			Chemical stability		ND	a×10-7	Tg	Ts	S
	(mm)	x	y	Y	x	y	Y	DA	DW		(/?)	(?)	(?)
ZB1	2	0.519	0.018	0.2	0.16	0.016	0.6	1	3	1.524	89	519	589	2.53
ZB2	2	0.158	0.02	0.2	0.16	0.017	0.7	1	2	1.495	58	551	655	2.4
ZB3	2	0.165	0.011	0.1	0.166	0.01	0.2	1	3	1.495	57	538	636	2.4
Technical specifications of Violet glass											Grading of Violet glass  by air bubble, strip and stress
Type	Thickness	300	360	400 (nm)	480 (nm)	700 (nm)	710 (nm)	720 (nm)	800 (nm)		Type	Air bubble	Stripe	Stress
	(mm)	(nm)	(nm)
ZB1	2			=70.0	=6.0	=4.0					ZB1	C-B	4	3
ZB2	2	=31.0	=78.2		=3.7		=9.2		=80.4		ZB2	C-B	4	3
ZB3	2	=18.0	=78.2		=0.2			=10.0	=80.4		ZB3	C-B	4	3