crystaltechno : crystal optics manufacturer

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Lenses

Spherical Bi-Convex Lenses

CaF₂

BaF₂

MgF₂

LiF

BK-7

ZnS

ZnSe

	Material	BK-7 Optical Glass
	Surface figure	Lambda/2 at 633 nm per inch
	Scratch-Dig	60 - 40
	Diameter tolerance	± 0.1 mm
	Paraxial Focal Length Tolerance	± 2%
	Centration	less than 5 arc minutes
	Clear aperture	90%
	Bevels	(0.2+0.3)mm x 45°

D, mm	FL, mm	R1=R2, mm	t_c, mm	t_e, mm	Part Number
12.7	12.7	11.83	5.7	2.0	BCX9-01
12.7	19.0	18.56	4.2	2.0	BCX9-02
12.7	25.0	24.70	3.7	2.0	BCX9-03
12.7	50.0	50.19	2.8	2.0	BCX9-04
25.4	19.0	16.61	13.8	2.0	BCX9-05
25.4	25.0	23.64	9.4	2.0	BCX9-06
25.4	50.0	49.76	5.3	2.0	BCX9-07
25.4	100.0	100.73	3.6	2.0	BCX9-08
25.4	150.0	151.49	3.1	2.0	BCX9-09
25.4	200.0	202.20	2.8	2.0	BCX9-10
25.4	250.0	252.90	2.6	2.0	BCX9-11
25.4	500.0	506.30	2.3	2.0	BCX9-12
38.1	50.0	48.79	10.7	3.0	BCX9-13
38.1	75.0	74.64	7.9	3.0	BCX9-14
38.1	100.0	100.21	6.7	3.0	BCX9-15
38.1	125.0	125.67	5.9	3.0	BCX9-16
38.1	200.0	201.87	4.8	3.0	BCX9-17
38.1	375.0	379.35	4.0	3.0	BCX9-18
38.1	750.0	759.45	3.5	3.0	BCX9-19
50.8	50.0	47.49	17.7	3.0	BCX9-20
50.8	100.0	99.70	9.6	3.0	BCX9-21
50.8	150.0	150.77	7.3	3.0	BCX9-22
50.8	200.0	201.63	6.2	3.0	BCX9-23
50.8	250.0	252.41	5.6	3.0	BCX9-24
50.8	300.0	303.15	5.1	3.0	BCX9-25
50.8	400.0	404.58	4.6	3.0	BCX9-26
50.8	500.0	505.97	4.3	3.0	BCX9-27
50.8	750.0	759.39	3.8	3.0	BCX9-28
50.8	1000.0	1012.77	3.6	3.0	BCX9-29
76.2	150.0	149.82	12.9	3.0	BCX9-30
76.2	200.0	200.93	10.3	3.0	BCX9-31
76.2	250.0	251.86	8.8	3.0	BCX9-32
76.2	300.0	302.69	7.8	3.0	BCX9-33
76.2	400.0	404.24	6.6	3.0	BCX9-34
76.2	500.0	505.70	5.9	3.0	BCX9-35
76.2	600.0	607.12	5.4	3.0	BCX9-36
76.2	800.0	809.90	4.8	3.0	BCX9-37
76.2	1000.0	1012.63	4.4	3.0	BCX9-38
76.2	1500.0	1519.40	4.0	3.0	BCX9-39
D, mm	FL, mm	R1=R2, mm	t_c, mm	t_e, mm	Part Number
* Numerical parameters correspond to Lambda=1.06 µm (n=1.50669)