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Bi-convex Lenses
 
 Select a material for a component
 
 
Barium Fluoride (BaF2)
Parameters Usual grade High precise grade
Surface Quality, Scratch/Dig 60/40 20/10
Surface Accuracy,Power/Irreg. 2/0.5 wave @ 633 nm 0.5/0.2 wave @ 633 nm
TIR, mm 0.05 0.02
Tolerance for diameter, mm 0.1 0.02
Tolerance for thickness, mm 0.1 0.02
Focal Length tolerance, mm 2% 0.5%

Top
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
LBX-BF-10-12.7
10
 0.394
12.7
4.0
10.666
1.5
LBX-BF-10-25.4
10
 0.394
25.4
2.6
22.39
1.5
LBX-BF-10-38.1
10
 0.394
38.1
2.2
34.36
1.5
LBX-BF-10-50.8
10
0.394
50.8
2.0
45.6
1.5
LBX-BF-10-63.5
10
0.394
63.5
1.9
57.02
1.5
LBX-BF-10-76.2
10
0.394
76.2
1.9
68.71
1.5
LBX-BF-10-100
10
0.394
100
1.8
89.95
1.5
LBX-BF-12.7-12.7
12.7
0.5
12.7
5.8
10.52
1.5
LBX-BF-12.7-25.4
12.7
0.5
25.4
3.3
22.39
1.5
LBX-BF-12.7-38.1
12.7
0.5
38.1
2.7
34.36
1.5
LBX-BF-12.7-50.8
12.7
0.5
50.8
2.4
45.6
1.5
LBX-BF-12.7-63.5
12.7
0.5
63.5
2.2
57.02
1.5
LBX-BF-12.7-76.2
12.7
0.5
76.2
2.1
68.71
1.5
LBX-BF-12.7-100
12.7
0.5
100
1.9
89.95
1.5
LBX-BF-25.4-25.4
25.4
1
25.4
10.5
21.18
2
LBX-BF-25.4-38.1
25.4
1
38.1
7.0
33.34
2
LBX-BF-25.4-50.8
25.4
1
50.8
5.7
45.08
2
LBX-BF-25.4-63.5
25.4
1
63.5
4.9
57.02
2
LBX-BF-25.4-76.2
25.4
1
76.2
4.4
67.92
2
LBX-BF-25.4-100
25.4
1
100
3.8
89.95
2
LBX-BF-25.4-150
25.4
1
150
3.2
136.46
2
LBX-BF-25.4-200
25.4
1
200
2.9
180.3
2
LBX-BF-25.4-250
25.4
1
250
2.7
226.5
2
LBX-BF-25.4-500
25.4
1
500
2.4
449.8
2
LBX-BF-38.1-38.1
38.1
1.5
38.1
15.2
31.7
2.5
LBX-BF-38.1-50.8
38.1
1.5
50.8
11.2
44.06
2.5
LBX-BF-38.1-63.5
38.1
1.5
63.5
9.2
55.85
2.5
LBX-BF-38.1-76.2
38.1
1.5
76.2
8.0
67.92
2.5
LBX-BF-38.1-100
38.1
1.5
100
6.6
89.95
2.5
LBX-BF-38.1-150
38.1
1.5
150
5.2
136.46
2.5
LBX-BF-38.1-200
38.1
1.5
200
4.5
180.3
2.5
LBX-BF-38.1-250
38.1
1.5
250
4.1
226.5
2.5
LBX-BF-38.1-500
38.1
1.5
500
3.3
449.8
2.5
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
LBX-BF-40-38.1
40
1.575
38.1
16.7
31.7
2.5
LBX-BF-40-50.8
40
1.575
50.8
12.1
44.06
2.5
LBX-BF-40-63.5
40
1.575
63.5
9.9
55.85
2.5
LBX-BF-40-76.2
40
1.575
76.2
8.5
67.92
2.5
LBX-BF-40-100
40
1.575
100
7.0
89.95
2.5
LBX-BF-40-150
40
1.575
150
5.4
136.46
2.5
LBX-BF-40-200
40
1.575
200
4.7
180.3
2.5
LBX-BF-40-250
40
1.575
250
4.3
226.5
2.5
LBX-BF-40-500
40
1.575
500
3.4
449.8
2.5
LBX-BF-50.8-50.8
50.8
2
50.8
19.8
42.66
3
LBX-BF-50.8-63.5
50.8
2
63.5
15.5
54.7
3
LBX-BF-50.8-76.2
50.8
2
76.2
13.1
66.68
3
LBX-BF-50.8-100
50.8
2
100
10.4
89.13
3
LBX-BF-50.8-150
50.8
2
150
7.9
132.43
3
LBX-BF-50.8-200
50.8
2
200
6.6
180.3
3
LBX-BF-50.8-250
50.8
2
250
5.9
226.5
3
LBX-BF-50.8-500
50.8
2
500
4.4
449.8
3
LBX-BF-63.5-76.2
63.5
2.5
76.2
19.1
66.68
3
LBX-BF-63.5-100
63.5
2.5
100
15.0
86.7
3
LBX-BF-63.5-150
63.5
2.5
150
10.7
132.43
3
LBX-BF-63.5-200
63.5
2.5
200
8.6
180.3
3
LBX-BF-63.5-250
63.5
2.5
250
7.5
226.5
3
LBX-BF-63.5-500
63.5
2.5
500
5.2
449.8
3
LBX-BF-76.2-100
76.2
3
100
21.1
86.7
3.5
LBX-BF-76.2-150
76.2
3
150
14.7
132.43
3.5
LBX-BF-76.2-200
76.2
3
200
11.6
180.3
3.5
LBX-BF-76.2-250
76.2
3
250
10.0
226.5
3.5
LBX-BF-76.2-500
76.2
3
500
6.7
449.8
3.5
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
Calcium Fluoride (CaF2)
Parameters Usual grade High precise grade
Surface Quality, Scratch/Dig 60/40 20/10
Surface Accuracy,Power/Irreg. 2/0.5 wave @ 633 nm 0.5/0.2 wave @ 633 nm
TIR, mm 0.05 0.02
Tolerance for diameter, mm 0.1 0.02
Tolerance for thickness, mm 0.1 0.02
Focal Length tolerance, mm 2% 0.5%

Top
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
LBX-CF-10-12.7
10
 0.394
12.7
4.4
9.462
1.5
LBX-CF-10-25.4
10
 0.394
25.4
2.8
19.77
1.5
LBX-CF-10-38.1
10
 0.394
38.1
2.3
30.34
1.5
LBX-CF-10-50.8
10
0.394
50.8
2.1
39.9
1.5
LBX-CF-10-63.5
10
0.394
63.5
2.0
50.82
1.5
LBX-CF-10-76.2
10
0.394
76.2
1.9
60.12
1.5
LBX-CF-10-100
10
0.394
100
1.8
79.8
1.5
LBX-CF-12.7-12.7
12.7
0.5
12.7
6.7
9.078
1.5
LBX-CF-12.7-25.4
12.7
0.5
25.4
3.6
19.77
1.5
LBX-CF-12.7-38.1
12.7
0.5
38.1
2.8
30.34
1.5
LBX-CF-12.7-50.8
12.7
0.5
50.8
2.5
39.9
1.5
LBX-CF-12.7-63.5
12.7
0.5
63.5
2.3
50.82
1.5
LBX-CF-12.7-76.2
12.7
0.5
76.2
2.2
60.12
1.5
LBX-CF-12.7-100
12.7
0.5
100
2.0
79.8
1.5
LBX-CF-25.4-25.4
25.4
1
25.4
12.1
18.45
2
LBX-CF-25.4-38.1
25.4
1
38.1
7.8
29.11
2
LBX-CF-25.4-50.8
25.4
1
50.8
6.1
39.9
2
LBX-CF-25.4-63.5
25.4
1
63.5
5.3
49.89
2
LBX-CF-25.4-76.2
25.4
1
76.2
4.7
60.12
2
LBX-CF-25.4-100
25.4
1
100
4.0
79.8
2
LBX-CF-25.4-150
25.4
1
150
3.4
119.4
2
LBX-CF-25.4-200
25.4
1
200
3.0
159.22
2
LBX-CF-25.4-250
25.4
1
250
2.8
199.99
2
LBX-CF-25.4-500
25.4
1
500
2.4
398.1
2
LBX-CF-38.1-38.1
38.1
1.5
38.1
17.7
27.61
2.5
LBX-CF-38.1-50.8
38.1
1.5
50.8
12.5
38.64
2.5
LBX-CF-38.1-63.5
38.1
1.5
63.5
10.2
49.09
2.5
LBX-CF-38.1-76.2
38.1
1.5
76.2
8.8
59.43
2.5
LBX-CF-38.1-100
38.1
1.5
100
7.2
78.89
2.5
LBX-CF-38.1-150
38.1
1.5
150
5.6
119.4
2.5
LBX-CF-38.1-200
38.1
1.5
200
4.8
159.22
2.5
LBX-CF-38.1-250
38.1
1.5
250
4.3
199.99
2.5
LBX-CF-38.1-500
38.1
1.5
500
3.4
398.1
2.5
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
LBX-CF-40-38.1
40
1.575
38.1
19.6
27.61
2.5
LBX-CF-40-50.8
40
1.575
50.8
13.7
38.64
2.5
LBX-CF-40-63.5
40
1.575
63.5
11.0
49.09
2.5
LBX-CF-40-76.2
40
1.575
76.2
9.4
59.43
2.5
LBX-CF-40-100
40
1.575
100
7.7
78.89
2.5
LBX-CF-40-150
40
1.575
150
5.9
119.4
2.5
LBX-CF-40-200
40
1.575
200
5.0
159.22
2.5
LBX-CF-40-250
40
1.575
250
4.5
199.99
2.5
LBX-CF-40-500
40
1.575
500
3.5
398.1
2.5
LBX-CF-50.8-50.8
50.8
2
50.8
23.2
36.98
3
LBX-CF-50.8-63.5
50.8
2
63.5
17.7
47.64
3
LBX-CF-50.8-76.2
50.8
2
76.2
14.4
59.43
3
LBX-CF-50.8-100
50.8
2
100
11.6
77.45
3
LBX-CF-50.8-150
50.8
2
150
8.5
119.4
3
LBX-CF-50.8-200
50.8
2
200
7.1
159.22
3
LBX-CF-50.8-250
50.8
2
250
6.2
199.99
3
LBX-CF-50.8-500
50.8
2
500
4.6
398.1
3
LBX-CF-63.5-100
63.5
2.5
100
16.6
77.45
3
LBX-CF-63.5-150
63.5
2.5
150
11.8
117.22
3
LBX-CF-63.5-200
63.5
2.5
200
9.4
159.22
3
LBX-CF-63.5-250
63.5
2.5
250
8.1
199.07
3
LBX-CF-63.5-500
63.5
2.5
500
5.5
398.1
3
LBX-CF-76.2-150
76.2
3
150
16.2
117.22
3.5
LBX-CF-76.2-200
76.2
3
200
12.8
159.22
3.5
LBX-CF-76.2-250
76.2
3
250
10.9
199.07
3.5
LBX-CF-76.2-500
76.2
3
500
7.2
398.1
3.5
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
Potassium Bromide ( KBr )
Parameters
Surface Quality, Scratch/Dig 60/40
Surface Accuracy,Power/Irreg. 2/0.5 wave @ 633 nm
TIR, mm 0.05
Tolerance for diameter, mm 0.1
Tolerance for thickness, mm 0.1
Focal Length tolerance, mm 2%

Top
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
LBX- KBR -10-12.7
10
 0.394
12.7
3.5
12.706
1.5
LBX- KBR -10-25.4
10
 0.394
25.4
2.5
26.12
1.5
LBX- KBR -10-38.1
10
 0.394
38.1
2.1
39.63
1.5
LBX- KBR -10-50.8
10
0.394
50.8
2.0
52.48
1.5
LBX- KBR -10-63.5
10
0.394
63.5
1.9
66.22
1.5
LBX- KBR -10-76.2
10
0.394
76.2
1.8
79.8
1.5
LBX- KBR -10-100
10
0.394
100
1.7
105.44
1.5
LBX- KBR -12.7-12.7
12.7
0.5
12.7
5.0
12.417
1.5
LBX- KBR -12.7-25.4
12.7
0.5
25.4
3.1
26.12
1.5
LBX- KBR -12.7-38.1
12.7
0.5
38.1
2.5
39.63
1.5
LBX- KBR -12.7-50.8
12.7
0.5
50.8
2.3
52.48
1.5
LBX- KBR -12.7-63.5
12.7
0.5
63.5
2.1
66.22
1.5
LBX- KBR -12.7-76.2
12.7
0.5
76.2
2.0
79.8
1.5
LBX- KBR -12.7-100
12.7
0.5
100
1.9
105.44
1.5
LBX- KBR -25.4-25.4
25.4
1
25.4
8.8
25.35
2
LBX- KBR -25.4-38.1
25.4
1
38.1
6.3
38.64
2
LBX- KBR -25.4-50.8
25.4
1
50.8
5.1
52.48
2
LBX- KBR -25.4-63.5
25.4
1
63.5
4.5
66.22
2
LBX- KBR -25.4-76.2
25.4
1
76.2
4.0
79.8
2
LBX- KBR -25.4-100
25.4
1
100
3.5
105.44
2
LBX- KBR -25.4-150
25.4
1
150
3.0
155.6
2
LBX- KBR -25.4-200
25.4
1
200
2.8
210.4
2
LBX- KBR -38.1-38.1
38.1
1.5
38.1
12.9
37.5
2.5
LBX- KBR -38.1-50.8
38.1
1.5
50.8
9.8
51.64
2.5
LBX- KBR -38.1-63.5
38.1
1.5
63.5
8.2
65.31
2.5
LBX- KBR -38.1-76.2
38.1
1.5
76.2
7.2
78.89
2.5
LBX- KBR -38.1-100
38.1
1.5
100
6.0
104.23
2.5
LBX- KBR -38.1-150
38.1
1.5
150
4.8
155.6
2.5
LBX- KBR -38.1-200
38.1
1.5
200
4.2
210.4
2.5
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
LBX- KBR -40-38.1
40
1.575
38.1
14.1
37.5
2.5
LBX- KBR -40-50.8
40
1.575
50.8
10.6
51.64
2.5
LBX- KBR -40-63.5
40
1.575
63.5
8.8
65.31
2.5
LBX- KBR -40-76.2
40
1.575
76.2
7.7
78.89
2.5
LBX- KBR -40-100
40
1.575
100
6.4
104.23
2.5
LBX- KBR -40-150
40
1.575
150
5.1
155.6
2.5
LBX- KBR -40-200
40
1.575
200
4.4
210.4
2.5
LBX- KBR -40-250
40
1.575
250
4.0
262.4
2.5
LBX- KBR -50.8-50.8
50.8
2
50.8
16.6
50.82
3
LBX- KBR -50.8-63.5
50.8
2
63.5
13.4
64.57
3
LBX- KBR -50.8-76.2
50.8
2
76.2
11.6
77.45
3
LBX- KBR -50.8-100
50.8
2
100
9.3
104.23
3
LBX- KBR -50.8-150
50.8
2
150
7.2
155.6
3
LBX- KBR -50.8-200
50.8
2
200
6.1
210.4
3
LBX- KBR -50.8-250
50.8
2
250
5.5
262.4
3
LBX- KBR -50.8-500
50.8
2
500
4.2
521.2
3
LBX- KBR -63.5-63.5
63.5
2.5
63.5
20.0
63.39
3
LBX- KBR -63.5-76.2
63.5
2.5
76.2
16.6
77.45
3
LBX- KBR -63.5-100
63.5
2.5
100
13.2
101.62
3
LBX- KBR -63.5-150
63.5
2.5
150
9.5
155.6
3
LBX- KBR -63.5-200
63.5
2.5
200
7.8
210.4
3
LBX- KBR -63.5-250
63.5
2.5
250
6.9
262.4
3
LBX- KBR -63.5-500
63.5
2.5
500
4.9
521.2
3
LBX- KBR -76.2-100
76.2
3
100
18.3
101.62
3.5
LBX- KBR -76.2-150
76.2
3
150
13.0
155.6
3.5
LBX- KBR -76.2-200
76.2
3
200
10.5
210.4
3.5
LBX- KBR -76.2-250
76.2
3
250
9.1
262.4
3.5
LBX- KBR -76.2-500
76.2
3
500
6.3
521.2
3.5
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
Potassium Chloride (KCl)
Parameters
Surface Quality, Scratch/Dig 60/40
Surface Accuracy,Power/Irreg. 2/0.5 wave @ 633 nm
TIR, mm 0.05
Tolerance for diameter, mm 0.1
Tolerance for thickness, mm 0.1
Focal Length tolerance, mm 2%

Top
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
LBX- KCL -10-12.7
10
 0.394
12.7
3.9
10.914
1.5
LBX- KCL -10-25.4
10
 0.394
25.4
2.6
22.91
1.5
LBX- KCL -10-38.1
10
 0.394
38.1
2.2
34.36
1.5
LBX- KCL -10-50.8
10
0.394
50.8
2.0
45.6
1.5
LBX- KCL -10-63.5
10
0.394
63.5
1.9
57.02
1.5
LBX- KCL -10-76.2
10
0.394
76.2
1.9
68.71
1.5
LBX- KCL -12.7-12.7
12.7
0.5
12.7
5.7
10.666
1.5
LBX- KCL -12.7-25.4
12.7
0.5
25.4
3.3
22.39
1.5
LBX- KCL -12.7-38.1
12.7
0.5
38.1
2.7
34.36
1.5
LBX- KCL -12.7-50.8
12.7
0.5
50.8
2.4
45.6
1.5
LBX- KCL -12.7-63.5
12.7
0.5
63.5
2.2
57.02
1.5
LBX- KCL -12.7-76.2
12.7
0.5
76.2
2.1
68.71
1.5
LBX- KCL -12.7-100
12.7
0.5
100
1.9
89.95
1.5
LBX- KCL -25.4-25.4
25.4
1
25.4
10.3
21.48
2
LBX- KCL -25.4-38.1
25.4
1
38.1
7.0
33.34
2
LBX- KCL -25.4-50.8
25.4
1
50.8
5.6
45.6
2
LBX- KCL -25.4-63.5
25.4
1
63.5
4.9
57.02
2
LBX- KCL -25.4-76.2
25.4
1
76.2
4.4
68.71
2
LBX- KCL -25.4-100
25.4
1
100
3.8
89.95
2
LBX- KCL -25.4-150
25.4
1
150
3.2
136.46
2
LBX- KCL -25.4-200
25.4
1
200
2.9
180.3
2
LBX- KCL -38.1-38.1
38.1
1.5
38.1
15.2
31.7
2.5
LBX- KCL -38.1-50.8
38.1
1.5
50.8
11.2
44.06
2.5
LBX- KCL -38.1-63.5
38.1
1.5
63.5
9.2
55.85
2.5
LBX- KCL -38.1-76.2
38.1
1.5
76.2
8.0
67.92
2.5
LBX- KCL -38.1-100
38.1
1.5
100
6.6
89.95
2.5
LBX- KCL -38.1-150
38.1
1.5
150
5.2
136.46
2.5
LBX- KCL -38.1-200
38.1
1.5
200
4.5
180.3
2.5
LBX- KCL -38.1-250
38.1
1.5
250
4.1
226.5
2.5
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
LBX- KCL -40-38.1
40
1.575
38.1
16.7
31.7
2.5
LBX- KCL -40-50.8
40
1.575
50.8
12.1
44.06
2.5
LBX- KCL -40-63.5
40
1.575
63.5
9.9
55.85
2.5
LBX- KCL -40-76.2
40
1.575
76.2
8.5
67.92
2.5
LBX- KCL -40-100
40
1.575
100
7.0
89.95
2.5
LBX- KCL -40-150
40
1.575
150
5.4
136.46
2.5
LBX- KCL -40-200
40
1.575
200
4.7
180.3
2.5
LBX- KCL -40-250
40
1.575
250
4.3
226.5
2.5
LBX- KCL -50.8-50.8
50.8
2
50.8
19.8
42.66
3
LBX- KCL -50.8-63.5
50.8
2
63.5
15.2
55.85
3
LBX- KCL -50.8-76.2
50.8
2
76.2
13.1
66.68
3
LBX- KCL -50.8-100
50.8
2
100
10.3
89.95
3
LBX- KCL -50.8-150
50.8
2
150
7.8
136.46
3
LBX- KCL -50.8-200
50.8
2
200
6.6
180.3
3
LBX- KCL -50.8-250
50.8
2
250
5.9
226.5
3
LBX- KCL -50.8-500
50.8
2
500
4.4
456
3
LBX- KCL -63.5-76.2
63.5
2.5
76.2
19.1
66.68
3
LBX- KCL -63.5-100
63.5
2.5
100
14.7
89.13
3
LBX- KCL -63.5-150
63.5
2.5
150
10.5
136.46
3
LBX- KCL -63.5-200
63.5
2.5
200
8.6
180.3
3
LBX- KCL -63.5-250
63.5
2.5
250
7.5
226.5
3
LBX- KCL -63.5-500
63.5
2.5
500
5.2
456
3
LBX- KCL -76.2-100
76.2
3
100
21.1
86.7
3.5
LBX- KCL -76.2-150
76.2
3
150
14.3
136.46
3.5
LBX- KCL -76.2-200
76.2
3
200
11.6
180.3
3.5
LBX- KCL -76.2-250
76.2
3
250
10.0
226.5
3.5
LBX- KCL -76.2-500
76.2
3
500
6.7
456
3.5
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
Lithium Fluoride (LiF)
Parameters
Surface Quality, Scratch/Dig 60/40
Surface Accuracy,Power/Irreg. 2/0.5 wave @ 633 nm
TIR, mm 0.05
Tolerance for diameter, mm 0.1
Tolerance for thickness, mm 0.1
Focal Length tolerance, mm 2%

Top
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
LBX- LIF -10-12.7
10
 0.394
12.7
4.0
10.52
1.5
LBX- LIF -10-25.4
10
 0.394
25.4
2.7
21.63
1.5
LBX- LIF -10-38.1
10
 0.394
38.1
2.3
33.34
1.5
LBX- LIF -10-50.8
10
0.394
50.8
2.1
44.06
1.5
LBX- LIF -10-63.5
10
0.394
63.5
1.9
55.85
1.5
LBX- LIF -10-76.2
10
0.394
76.2
1.9
66.68
1.5
LBX- LIF -12.7-12.7
12.7
0.5
12.7
6.0
10.139
1.5
LBX- LIF -12.7-25.4
12.7
0.5
25.4
3.4
21.63
1.5
LBX- LIF -12.7-38.1
12.7
0.5
38.1
2.7
33.34
1.5
LBX- LIF -12.7-50.8
12.7
0.5
50.8
2.4
44.06
1.5
LBX- LIF -12.7-63.5
12.7
0.5
63.5
2.2
55.85
1.5
LBX- LIF -12.7-76.2
12.7
0.5
76.2
2.1
66.68
1.5
LBX- LIF -25.4-25.4
25.4
1
25.4
10.9
20.28
2
LBX- LIF -25.4-38.1
25.4
1
38.1
7.2
32.28
2
LBX- LIF -25.4-50.8
25.4
1
50.8
5.7
44.06
2
LBX- LIF -25.4-63.5
25.4
1
63.5
5.0
54.7
2
LBX- LIF -25.4-76.2
25.4
1
76.2
4.4
66.68
2
LBX- LIF -25.4-100
25.4
1
100
3.9
86.7
2
LBX- LIF -25.4-150
25.4
1
150
3.2
131.22
2
LBX- LIF -25.4-200
25.4
1
200
2.9
174.58
2
LBX- LIF -38.1-38.1
38.1
1.5
38.1
15.7
30.83
2.5
LBX- LIF -38.1-50.8
38.1
1.5
50.8
11.5
42.66
2.5
LBX- LIF -38.1-63.5
38.1
1.5
63.5
9.3
54.7
2.5
LBX- LIF -38.1-76.2
38.1
1.5
76.2
8.1
66.22
2.5
LBX- LIF -38.1-100
38.1
1.5
100
6.7
86.7
2.5
LBX- LIF -38.1-150
38.1
1.5
150
5.3
131.22
2.5
LBX- LIF -38.1-200
38.1
1.5
200
4.6
174.58
2.5
LBX- LIF -38.1-250
38.1
1.5
250
4.2
218.3
2.5
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
LBX- LIF -40-38.1
40
1.575
38.1
17.2
30.83
2.5
LBX- LIF -40-50.8
40
1.575
50.8
12.5
42.66
2.5
LBX- LIF -40-63.5
40
1.575
63.5
10.1
54.7
2.5
LBX- LIF -40-76.2
40
1.575
76.2
8.7
66.22
2.5
LBX- LIF -40-100
40
1.575
100
7.2
86.7
2.5
LBX- LIF -40-150
40
1.575
150
5.6
131.22
2.5
LBX- LIF -40-200
40
1.575
200
4.8
174.58
2.5
LBX- LIF -40-250
40
1.575
250
4.3
218.3
2.5
LBX- LIF -50.8-50.8
50.8
2
50.8
20.5
41.3
3
LBX- LIF -50.8-63.5
50.8
2
63.5
15.8
53.58
3
LBX- LIF -50.8-76.2
50.8
2
76.2
13.4
64.86
3
LBX- LIF -50.8-100
50.8
2
100
10.6
86.7
3
LBX- LIF -50.8-150
50.8
2
150
8.0
131.22
3
LBX- LIF -50.8-200
50.8
2
200
6.7
174.58
3
LBX- LIF -50.8-250
50.8
2
250
6.0
218.3
3
LBX- LIF -50.8-500
50.8
2
500
4.5
438.5
3
LBX- LIF -63.5-76.2
63.5
2.5
76.2
20.0
63.39
3
LBX- LIF -63.5-100
63.5
2.5
100
15.2
85.7
3
LBX- LIF -63.5-150
63.5
2.5
150
10.9
129.42
3
LBX- LIF -63.5-200
63.5
2.5
200
8.8
174.58
3
LBX- LIF -63.5-250
63.5
2.5
250
8.1
218.3
3
LBX- LIF -63.5-500
63.5
2.5
500
5.3
438.5
3
LBX- LIF -76.2-150
76.2
3
150
15.0
129.42
3.5
LBX- LIF -76.2-200
76.2
3
200
11.9
174.58
3.5
LBX- LIF -76.2-250
76.2
3
250
10.2
218.3
3.5
LBX- LIF -76.2-500
76.2
3
500
6.8
438.5
3.5
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
Magnesium Fluoride (MgF2)
Parameters Usual grade High precise grade
Surface Quality, Scratch/Dig 60/40 20/10
Surface Accuracy,Power/Irreg. 2/0.5 wave @ 633 nm 0.5/0.2 wave @ 633 nm
TIR, mm 0.05 0.01
Tolerance for diameter, mm 0.1 0.01
Tolerance for thickness, mm 0.1 0.01
Focal Length tolerance, mm 2% 0.5%

Top
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
LBX-MF-10-12.7
10
 0.394
12.7
4.4
9.462
1.5
LBX-MF-10-25.4
10
 0.394
25.4
2.8
19.999
1.5
LBX-MF-10-38.1
10
 0.394
38.1
2.3
30.34
1.5
LBX-MF-10-50.8
10
0.394
50.8
2.1
40.74
1.5
LBX-MF-10-63.5
10
0.394
63.5
2.0
50.82
1.5
LBX-MF-10-76.2
10
0.394
76.2
1.9
61.66
1.5
LBX-MF-12.7-12.7
12.7
0.5
12.7
6.7
9.078
1.5
LBX-MF-12.7-25.4
12.7
0.5
25.4
3.6
19.999
1.5
LBX-MF-12.7-38.1
12.7
0.5
38.1
2.8
30.34
1.5
LBX-MF-12.7-50.8
12.7
0.5
50.8
2.5
40.74
1.5
LBX-MF-12.7-63.5
12.7
0.5
63.5
2.3
50.82
1.5
LBX-MF-12.7-76.2
12.7
0.5
76.2
2.2
61.66
1.5
LBX-MF-12.7-100
12.7
0.5
100
2.0
79.8
1.5
LBX-MF-25.4-25.4
25.4
1
25.4
12.1
18.45
2
LBX-MF-25.4-38.1
25.4
1
38.1
7.7
29.58
2
LBX-MF-25.4-50.8
25.4
1
50.8
6.1
39.9
2
LBX-MF-25.4-63.5
25.4
1
63.5
5.2
50.82
2
LBX-MF-25.4-76.2
25.4
1
76.2
4.7
60.12
2
LBX-MF-25.4-100
25.4
1
100
4.0
79.8
2
LBX-MF-25.4-150
25.4
1
150
3.4
119.4
2
LBX-MF-25.4-200
25.4
1
200
3.0
159.22
2
LBX-MF-25.4-250
25.4
1
250
2.8
199.99
2
LBX-MF-38.1-38.1
38.1
1.5
38.1
17.7
27.61
2.5
LBX-MF-38.1-50.8
38.1
1.5
50.8
12.5
38.64
2.5
LBX-MF-38.1-63.5
38.1
1.5
63.5
10.1
49.89
2.5
LBX-MF-38.1-76.2
38.1
1.5
76.2
8.7
60.12
2.5
LBX-MF-38.1-100
38.1
1.5
100
7.1
79.8
2.5
LBX-MF-38.1-150
38.1
1.5
150
5.6
119.4
2.5
LBX-MF-38.1-200
38.1
1.5
200
4.8
159.22
2.5
LBX-MF-38.1-250
38.1
1.5
250
4.3
199.99
2.5
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
LBX-MF-40-38.1
40
1.575
38.1
19.7
27.61
2.5
LBX-MF-40-50.8
40
1.575
50.8
13.7
38.64
2.5
LBX-MF-40-63.5
40
1.575
63.5
10.9
49.89
2.5
LBX-MF-40-76.2
40
1.575
76.2
9.3
60.12
2.5
LBX-MF-40-100
40
1.575
100
7.6
79.8
2.5
LBX-MF-40-150
40
1.575
150
5.9
119.4
2.5
LBX-MF-40-200
40
1.575
200
5.0
159.22
2.5
LBX-MF-40-250
40
1.575
250
4.5
199.99
2.5
LBX-MF-50.8-63.5
50.8
2
63.5
17.2
49.09
3
LBX-MF-50.8-76.2
50.8
2
76.2
14.4
59.43
3
LBX-MF-50.8-100
50.8
2
100
11.3
79.8
3
LBX-MF-50.8-150
50.8
2
150
8.5
119.4
3
LBX-MF-50.8-200
50.8
2
200
7.1
159.22
3
LBX-MF-50.8-250
50.8
2
250
6.2
199.99
3
LBX-MF-50.8-500
50.8
2
500
4.6
400.9
3
LBX-MF-63.5-100
63.5
2.5
100
16.6
77.45
3
LBX-MF-63.5-150
63.5
2.5
150
11.6
119.4
3
LBX-MF-63.5-200
63.5
2.5
200
9.4
159.22
3
LBX-MF-63.5-250
63.5
2.5
250
8.1
199.99
3
LBX-MF-63.5-500
63.5
2.5
500
5.5
400.9
3
LBX-MF-76.2-150
76.2
3
150
16.0
119.4
3.5
LBX-MF-76.2-200
76.2
3
200
12.8
159.22
3.5
LBX-MF-76.2-250
76.2
3
250
10.8
199.99
3.5
LBX-MF-76.2-500
76.2
3
500
7.1
400.9
3.5
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
Sodium Chloride (NaCl)
Parameters
Surface Quality, Scratch/Dig 60/40
Surface Accuracy,Power/Irreg. 2/0.5 wave @ 633 nm
TIR, mm 0.05
Tolerance for diameter, mm 0.1
Tolerance for thickness, mm 0.1
Focal Length tolerance, mm 2%

Top
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
LBX-NC-10-12.7
10
 0.394
12.7
3.4
13.335
1.5
LBX-NC-10-25.4
10
 0.394
25.4
2.4
27.23
1.5
LBX-NC-10-38.1
10
 0.394
38.1
2.1
40.74
1.5
LBX-NC-10-50.8
10
0.394
50.8
2.0
54.7
1.5
LBX-NC-10-63.5
10
0.394
63.5
1.9
68.71
1.5
LBX-NC-10-76.2
10
0.394
76.2
1.8
82.41
1.5
LBX-NC-12.7-12.7
12.7
0.5
12.7
4.8
12.912
1.5
LBX-NC-12.7-25.4
12.7
0.5
25.4
3.0
27.23
1.5
LBX-NC-12.7-38.1
12.7
0.5
38.1
2.5
40.74
1.5
LBX-NC-12.7-50.8
12.7
0.5
50.8
2.2
54.7
1.5
LBX-NC-12.7-63.5
12.7
0.5
63.5
2.1
68.71
1.5
LBX-NC-12.7-76.2
12.7
0.5
76.2
2.0
82.41
1.5
LBX-NC-25.4-25.4
25.4
1
25.4
8.6
26.12
2
LBX-NC-25.4-38.1
25.4
1
38.1
6.1
40.74
2
LBX-NC-25.4-50.8
25.4
1
50.8
5.0
54.7
2
LBX-NC-25.4-63.5
25.4
1
63.5
4.4
68.71
2
LBX-NC-25.4-76.2
25.4
1
76.2
4.0
82.41
2
LBX-NC-25.4-100
25.4
1
100
3.5
107.65
2
LBX-NC-25.4-150
25.4
1
150
3.0
162.93
2
LBX-NC-38.1-38.1
38.1
1.5
38.1
12.3
39.63
2.5
LBX-NC-38.1-50.8
38.1
1.5
50.8
9.5
53.58
2.5
LBX-NC-38.1-63.5
38.1
1.5
63.5
8.0
67.61
2.5
LBX-NC-38.1-76.2
38.1
1.5
76.2
7.0
82.41
2.5
LBX-NC-38.1-100
38.1
1.5
100
5.9
107.65
2.5
LBX-NC-38.1-150
38.1
1.5
150
4.7
162.93
2.5
LBX-NC-38.1-200
38.1
1.5
200
4.2
218.3
2.5
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
LBX-NC-40-38.1
40
1.575
38.1
13.7
38.64
2.5
LBX-NC-40-50.8
40
1.575
50.8
10.2
53.58
2.5
LBX-NC-40-63.5
40
1.575
63.5
8.6
67.61
2.5
LBX-NC-40-76.2
40
1.575
76.2
7.4
82.41
2.5
LBX-NC-40-100
40
1.575
100
6.2
107.65
2.5
LBX-NC-40-150
40
1.575
150
5.0
162.93
2.5
LBX-NC-40-200
40
1.575
200
4.3
218.3
2.5
LBX-NC-40-250
40
1.575
250
4.0
271.6
2.5
LBX-NC-50.8-50.8
50.8
2
50.8
16.1
52.48
3
LBX-NC-50.8-63.5
50.8
2
63.5
13.1
66.68
3
LBX-NC-50.8-76.2
50.8
2
76.2
11.3
79.8
3
LBX-NC-50.8-100
50.8
2
100
9.1
107.65
3
LBX-NC-50.8-150
50.8
2
150
7.0
162.93
3
LBX-NC-50.8-200
50.8
2
200
6.0
218.3
3
LBX-NC-50.8-250
50.8
2
250
5.4
271.6
3
LBX-NC-50.8-500
50.8
2
500
4.2
539.5
3
LBX-NC-63.5-76.2
63.5
2.5
76.2
16.2
79.8
3
LBX-NC-63.5-100
63.5
2.5
100
12.6
107.65
3
LBX-NC-63.5-150
63.5
2.5
150
9.2
162.93
3
LBX-NC-63.5-200
63.5
2.5
200
8.1
218.3
3
LBX-NC-63.5-250
63.5
2.5
250
6.7
271.6
3
LBX-NC-63.5-500
63.5
2.5
500
4.9
539.5
3
LBX-NC-76.2-150
76.2
3
150
12.5
162.93
3.5
LBX-NC-76.2-200
76.2
3
200
10.2
218.3
3.5
LBX-NC-76.2-250
76.2
3
250
8.9
271.6
3.5
LBX-NC-76.2-500
76.2
3
500
6.2
539.5
3.5
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
 
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