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Fused Silica IR Grade (SiO2)
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
LPX-QI-10-12.7
10
 0.394
12.7
5.0
5.702
2
LPX-QI-10-25.4
10
 0.394
25.4
3.1
11.641
2
LPX-QI-10-38.1
10
 0.394
38.1
2.7
17.458
2
LPX-QI-10-50.8
10
0.394
50.8
2.6
22.86
2
LPX-QI-10-63.5
10
 0.394
63.5
2.4
29.11
2
LPX-QI-10-76.2
10
 0.394
76.2
2.4
34.28
2
LPX-QI-10-100
10
 0.394
100
2.3
45.08
2
LPX-QI-10-150
10
 0.394
150
2.2
67.45
2
LPX-QI-10-200
10
 0.394
200
2.1
89.95
2
LPX-QI-10-250
10
 0.394
250
2.1
112.46
2
LPX-QI-10-500
10
 0.394
500
2.1
226.5
2
LPX-QI-12.7-25.4
12.7
0.5
25.4
3.9
11.641
2
LPX-QI-12.7-38.1
12.7
0.5
38.1
3.2
17.458
2
LPX-QI-12.7-50.8
12.7
0.5
50.8
2.9
22.86
2
LPX-QI-12.7-63.5
12.7
0.5
63.5
2.7
29.11
2
LPX-QI-12.7-76.2
12.7
0.5
76.2
2.6
34.28
2
LPX-QI-12.7-100
12.7
0.5
100
2.4
45.08
2
LPX-QI-12.7-150
12.7
0.5
150
2.3
67.45
2
LPX-QI-12.7-200
12.7
0.5
200
2.2
89.95
2
LPX-QI-12.7-250
12.7
0.5
250
2.2
112.46
2
LPX-QI-12.7-500
12.7
0.5
500
2.1
226.5
2
LPX-QI-25.4-38.1
25.4
1
38.1
7.5
17.458
2
LPX-QI-25.4-50.8
25.4
1
50.8
5.9
22.86
2
LPX-QI-25.4-63.5
25.4
1
63.5
4.9
29.11
2
LPX-QI-25.4-76.2
25.4
1
76.2
4.4
34.28
2
LPX-QI-25.4-100
25.4
1
100
3.8
45.08
2
LPX-QI-25.4-150
25.4
1
150
3.2
67.45
2
LPX-QI-25.4-200
25.4
1
200
2.9
89.95
2
LPX-QI-25.4-250
25.4
1
250
2.7
112.46
2
LPX-QI-25.4-500
25.4
1
500
2.4
226.5
2
LPX-QI-25.4-1000
25.4
1
1000
2.2
449.8
2
LPX-QI-25.4-2000
25.4
1
2000
2.1
895.4
2
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
LPX-QI-38.1-50.8
38.1
1.5
50.8
12.2
22.86
2
LPX-QI-38.1-63.5
38.1
1.5
63.5
9.1
29.11
2
LPX-QI-38.1-76.2
38.1
1.5
76.2
7.8
34.28
2
LPX-QI-38.1-100
38.1
1.5
100
6.2
45.08
2
LPX-QI-38.1-150
38.1
1.5
150
4.7
67.45
2
LPX-QI-38.1-200
38.1
1.5
200
4.0
89.95
2
LPX-QI-38.1-250
38.1
1.5
250
3.6
112.46
2
LPX-QI-38.1-500
38.1
1.5
500
2.8
226.5
2
LPX-QI-38.1-1000
38.1
1.5
1000
2.4
449.8
2
LPX-QI-38.1-2000
38.1
1.5
2000
2.2
895.4
2
LPX-QI-40-50.8
40
1.575
50.8
13.8
22.86
2
LPX-QI-40-63.5
40
1.575
63.5
10.0
29.11
2
LPX-QI-40-76.2
40
1.575
76.2
8.4
34.28
2
LPX-QI-40-100
40
1.575
100
6.7
45.08
2
LPX-QI-40-150
40
1.575
150
5.0
67.45
2
LPX-QI-40-200
40
1.575
200
4.3
89.95
2
LPX-QI-40-250
40
1.575
250
3.8
112.46
2
LPX-QI-40-500
40
1.575
500
2.9
226.5
2
LPX-QI-40-1000
40
1.575
1000
2.4
449.8
2
LPX-QI-40-2000
40
1.575
2000
2.2
895.4
2
LPX-QI-50.8-76.2
50.8
2
76.2
13.8
34.28
2.5
LPX-QI-50.8-100
50.8
2
100
10.3
45.08
2.5
LPX-QI-50.8-150
50.8
2
150
7.5
67.45
2.5
LPX-QI-50.8-200
50.8
2
200
6.2
89.95
2.5
LPX-QI-50.8-250
50.8
2
250
5.4
112.46
2.5
LPX-QI-50.8-500
50.8
2
500
3.9
226.5
2.5
LPX-QI-50.8-1000
50.8
2
1000
3.2
449.8
2.5
LPX-QI-50.8-2000
50.8
2
2000
2.9
895.4
2.5
LPX-QI-63.5-100
63.5
2.5
100
15.6
45.08
2.5
LPX-QI-63.5-150
63.5
2.5
150
10.4
67.45
2.5
LPX-QI-63.5-200
63.5
2.5
200
8.3
89.95
2.5
LPX-QI-63.5-250
63.5
2.5
250
7.1
112.46
2.5
LPX-QI-63.5-500
63.5
2.5
500
4.7
226.5
2.5
LPX-QI-63.5-1000
63.5
2.5
1000
3.6
449.8
2.5
LPX-QI-63.5-2000
63.5
2.5
2000
3.1
895.4
2.5
LPX-QI-76.2-150
76.2
3
150
14.8
67.45
3
LPX-QI-76.2-200
76.2
3
200
11.5
89.95
3
LPX-QI-76.2-250
76.2
3
250
9.7
112.46
3
LPX-QI-76.2-500
76.2
3
500
6.2
226.5
3
LPX-QI-76.2-1000
76.2
3
1000
4.6
449.8
3
LPX-QI-76.2-2000
76.2
3
2000
3.8
895.4
3
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
Sapphire (Al2O3)
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
LPX-AL-10-12.7
10
 0.394
12.7
3.8
7.907
2
LPX-AL-10-25.4
10
 0.394
25.4
2.8
15.849
2
LPX-AL-10-38.1
10
 0.394
38.1
2.5
23.77
2
LPX-AL-10-50.8
10
0.394
50.8
2.4
31.7
2
LPX-AL-10-63.5
10
 0.394
63.5
2.3
39.63
2
LPX-AL-10-76.2
10
 0.394
76.2
2.3
47.64
2
LPX-AL-10-100
10
 0.394
100
2.2
62.23
2
LPX-AL-10-150
10
 0.394
150
2.1
93.76
2
LPX-AL-10-200
10
 0.394
200
2.1
124.45
2
LPX-AL-10-250
10
 0.394
250
2.1
155.6
2
LPX-AL-12.7-25.4
12.7
0.5
25.4
3.3
15.849
2
LPX-AL-12.7-38.1
12.7
0.5
38.1
2.9
23.77
2
LPX-AL-12.7-50.8
12.7
0.5
50.8
2.6
31.7
2
LPX-AL-12.7-63.5
12.7
0.5
63.5
2.5
39.63
2
LPX-AL-12.7-76.2
12.7
0.5
76.2
2.4
47.64
2
LPX-AL-12.7-100
12.7
0.5
100
2.3
62.23
2
LPX-AL-12.7-150
12.7
0.5
150
2.2
93.76
2
LPX-AL-12.7-200
12.7
0.5
200
2.2
124.45
2
LPX-AL-12.7-250
12.7
0.5
250
2.1
155.6
2
LPX-AL-12.7-500
12.7
0.5
500
2.1
311.9
2
LPX-AL-25.4-25.4
25.4
1
25.4
8.4
15.849
2
LPX-AL-25.4-38.1
25.4
1
38.1
5.7
23.77
2
LPX-AL-25.4-50.8
25.4
1
50.8
4.7
31.7
2
LPX-AL-25.4-63.5
25.4
1
63.5
4.1
39.63
2
LPX-AL-25.4-76.2
25.4
1
76.2
3.7
47.64
2
LPX-AL-25.4-100
25.4
1
100
3.3
62.23
2
LPX-AL-25.4-150
25.4
1
150
2.9
93.76
2
LPX-AL-25.4-200
25.4
1
200
2.6
124.45
2
LPX-AL-25.4-250
25.4
1
250
2.5
155.6
2
LPX-AL-25.4-500
25.4
1
500
2.3
311.9
2
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
LPX-AL-38.1-50.8
38.1
1.5
50.8
8.9
31.7
2.5
LPX-AL-38.1-63.5
38.1
1.5
63.5
7.4
39.63
2.5
LPX-AL-38.1-76.2
38.1
1.5
76.2
6.5
47.64
2.5
LPX-AL-38.1-100
38.1
1.5
100
5.5
62.23
2.5
LPX-AL-38.1-150
38.1
1.5
150
4.5
93.76
2.5
LPX-AL-38.1-200
38.1
1.5
200
4.0
124.45
2.5
LPX-AL-38.1-250
38.1
1.5
250
3.7
155.6
2.5
LPX-AL-38.1-500
38.1
1.5
500
3.1
311.9
2.5
LPX-AL-40-50.8
40
1.575
50.8
9.6
31.7
2.5
LPX-AL-40-63.5
40
1.575
63.5
7.9
39.63
2.5
LPX-AL-40-76.2
40
1.575
76.2
6.9
47.64
2.5
LPX-AL-40-100
40
1.575
100
5.8
62.23
2.5
LPX-AL-40-150
40
1.575
150
4.7
93.76
2.5
LPX-AL-40-200
40
1.575
200
4.1
124.45
2.5
LPX-AL-40-250
40
1.575
250
3.8
155.6
2.5
LPX-AL-50.8-76.2
50.8
2
76.2
9.8
47.64
2.5
LPX-AL-50.8-100
50.8
2
100
7.9
62.23
2.5
LPX-AL-50.8-150
50.8
2
150
6.0
93.76
2.5
LPX-AL-50.8-200
50.8
2
200
5.1
124.45
2.5
LPX-AL-50.8-250
50.8
2
250
4.6
155.6
2.5
LPX-AL-50.8-500
50.8
2
500
3.5
311.9
2.5
LPX-AL-63.5-150
63.5
2.5
150
8.0
93.76
2.5
LPX-AL-63.5-200
63.5
2.5
200
6.6
124.45
2.5
LPX-AL-63.5-250
63.5
2.5
250
5.8
155.6
2.5
LPX-AL-63.5-500
63.5
2.5
500
4.1
311.9
2.5
LPX-AL-76.2-200
76.2
3
200
9.0
124.45
3
LPX-AL-76.2-250
76.2
3
250
7.8
155.6
3
LPX-AL-76.2-500
76.2
3
500
5.3
311.9
3
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
Silicon (Si)
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
LPX- SI -10-12.7
10
 0.394
12.7
2.4
30.83
2
LPX- SI -10-25.4
10
 0.394
25.4
2.2
61.66
2
LPX- SI -10-38.1
10
 0.394
38.1
2.1
92.68
2
LPX- SI -10-50.8
10
0.394
50.8
2.1
123.31
2
LPX- SI -10-63.5
10
 0.394
63.5
2.1
154.17
2
LPX- SI -10-76.2
10
 0.394
76.2
2.1
184.93
2
LPX- SI -10-100
10
 0.394
100
2.1
242.7
2
LPX- SI -12.7-12.7
12.7
0.5
12.7
2.7
30.83
2
LPX- SI -12.7-25.4
12.7
0.5
25.4
2.3
61.66
2
LPX- SI -12.7-38.1
12.7
0.5
38.1
2.2
92.68
2
LPX- SI -12.7-50.8
12.7
0.5
50.8
2.2
123.31
2
LPX- SI -12.7-63.5
12.7
0.5
63.5
2.1
154.17
2
LPX- SI -12.7-76.2
12.7
0.5
76.2
2.1
184.93
2
LPX- SI -12.7-100
12.7
0.5
100
2.1
242.7
2
LPX- SI -12.7-150
12.7
0.5
150
2.1
363.9
2
LPX- SI -25.4-12.7
25.4
1
12.7
4.7
30.83
2
LPX- SI -25.4-25.4
25.4
1
25.4
3.3
61.66
2
LPX- SI -25.4-38.1
25.4
1
38.1
2.9
92.68
2
LPX- SI -25.4-50.8
25.4
1
50.8
2.7
123.31
2
LPX- SI -25.4-63.5
25.4
1
63.5
2.5
154.17
2
LPX- SI -25.4-76.2
25.4
1
76.2
2.4
184.93
2
LPX- SI -25.4-100
25.4
1
100
2.3
242.7
2
LPX- SI -25.4-150
25.4
1
150
2.2
363.9
2
LPX- SI -25.4-200
25.4
1
200
2.2
483.1
2
LPX- SI -25.4-250
25.4
1
250
2.1
608.1
2
LPX- SI -25.4-500
25.4
1
500
2.1
1219
2
LPX- SI -38.1-25.4
38.1
1.5
25.4
5.0
61.66
2
LPX- SI -38.1-38.1
38.1
1.5
38.1
4.0
92.68
2
LPX- SI -38.1-50.8
38.1
1.5
50.8
3.5
123.31
2
LPX- SI -38.1-63.5
38.1
1.5
63.5
3.2
154.17
2
LPX- SI -38.1-76.2
38.1
1.5
76.2
3.0
184.93
2
LPX- SI -38.1-100
38.1
1.5
100
2.7
242.7
2
LPX- SI -38.1-150
38.1
1.5
150
2.5
363.9
2
LPX- SI -38.1-200
38.1
1.5
200
2.4
483.1
2
LPX- SI -38.1-250
38.1
1.5
250
2.3
608.1
2
LPX- SI -38.1-500
38.1
1.5
500
2.1
1219
2
LPX- SI -38.1-1000
38.1
1.5
1000
2.1
2443
2
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
LPX- SI -40-25.4
40
1.575
25.4
5.3
61.66
2
LPX- SI -40-38.1
40
1.575
38.1
4.2
92.68
2
LPX- SI -40-50.8
40
1.575
50.8
3.6
123.31
2
LPX- SI -40-63.5
40
1.575
63.5
3.3
154.17
2
LPX- SI -40-76.2
40
1.575
76.2
3.1
184.93
2
LPX- SI -40-100
40
1.575
100
2.8
242.7
2
LPX- SI -40-150
40
1.575
150
2.5
363.9
2
LPX- SI -40-200
40
1.575
200
2.4
483.1
2
LPX- SI -40-250
40
1.575
250
2.3
608.1
2
LPX- SI -40-500
40
1.575
500
2.2
1219
2
LPX- SI -40-1000
40
1.575
1000
2.1
2443
2
LPX- SI -50.8-50.8
50.8
2
50.8
5.1
123.31
2.5
LPX- SI -50.8-63.5
50.8
2
63.5
4.6
154.17
2.5
LPX- SI -50.8-76.2
50.8
2
76.2
4.3
184.93
2.5
LPX- SI -50.8-100
50.8
2
100
3.8
242.7
2.5
LPX- SI -50.8-150
50.8
2
150
3.4
363.9
2.5
LPX- SI -50.8-200
50.8
2
200
3.2
483.1
2.5
LPX- SI -50.8-250
50.8
2
250
3.0
608.1
2.5
LPX- SI -50.8-500
50.8
2
500
2.8
1219
2.5
LPX- SI -50.8-1000
50.8
2
1000
2.6
2443
2.5
LPX- SI -50.8-2000
50.8
2
2000
2.6
4920
2.5
LPX- SI -63.5-63.5
63.5
2.5
63.5
5.8
154.17
2.5
LPX- SI -63.5-76.2
63.5
2.5
76.2
5.2
184.93
2.5
LPX- SI -63.5-100
63.5
2.5
100
4.6
242.7
2.5
LPX- SI -63.5-150
63.5
2.5
150
3.9
363.9
2.5
LPX- SI -63.5-200
63.5
2.5
200
3.5
483.1
2.5
LPX- SI -63.5-250
63.5
2.5
250
3.3
608.1
2.5
LPX- SI -63.5-500
63.5
2.5
500
2.9
1219
2.5
LPX- SI -63.5-1000
63.5
2.5
1000
2.7
2443
2.5
LPX- SI -63.5-2000
63.5
2.5
2000
2.6
4920
2.5
LPX- SI -76.2-100
76.2
3
100
6.0
242.7
3
LPX- SI -76.2-150
76.2
3
150
4.9
363.9
3
LPX- SI -76.2-200
76.2
3
200
4.5
483.1
3
LPX- SI -76.2-250
76.2
3
250
3.8
608.1
3
LPX- SI -76.2-500
76.2
3
500
3.6
1219
3
LPX- SI -76.2-1000
76.2
3
1000
3.3
2443
3
LPX- SI -76.2-2000
76.2
3
2000
3.1
4920
3
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
LPX-NC-10-12.7
10
 0.394
12.7
4.5
6.223
2
LPX-NC-10-25.4
10
 0.394
25.4
3.0
12.445
2
LPX-NC-10-38.1
10
 0.394
38.1
2.7
18.707
2
LPX-NC-10-50.8
10
0.394
50.8
2.5
24.89
2
LPX-NC-10-63.5
10
 0.394
63.5
2.4
31.12
2
LPX-NC-10-76.2
10
 0.394
76.2
2.3
37.41
2
LPX-NC-12.7-25.4
12.7
0.5
25.4
3.7
12.445
2
LPX-NC-12.7-38.1
12.7
0.5
38.1
3.1
18.707
2
LPX-NC-12.7-50.8
12.7
0.5
50.8
2.8
24.89
2
LPX-NC-12.7-63.5
12.7
0.5
63.5
2.7
31.12
2
LPX-NC-12.7-76.2
12.7
0.5
76.2
2.5
37.41
2
LPX-NC-12.7-100
12.7
0.5
100
2.4
49.09
2
LPX-NC-25.4-38.1
25.4
1
38.1
9.0
18.707
4
LPX-NC-25.4-50.8
25.4
1
50.8
7.5
24.89
4
LPX-NC-25.4-63.5
25.4
1
63.5
6.7
31.12
4
LPX-NC-25.4-76.2
25.4
1
76.2
6.2
37.41
4
LPX-NC-25.4-100
25.4
1
100
5.7
49.09
4
LPX-NC-25.4-150
25.4
1
150
5.1
73.45
4
LPX-NC-25.4-200
25.4
1
200
4.8
98.4
4
LPX-NC-25.4-250
25.4
1
250
4.7
122.74
4
LPX-NC-25.4-500
25.4
1
500
4.3
244.9
4
LPX-NC-25.4-1000
25.4
1
1000
4.2
496.6
4
LPX-NC-25.4-2000
25.4
1
2000
4.1
981.7
4
LPX-NC-38.1-50.8
38.1
1.5
50.8
13.4
24.89
4.5
LPX-NC-38.1-63.5
38.1
1.5
63.5
11.0
31.12
4.5
LPX-NC-38.1-76.2
38.1
1.5
76.2
9.7
37.41
4.5
LPX-NC-38.1-100
38.1
1.5
100
8.3
49.09
4.5
LPX-NC-38.1-150
38.1
1.5
150
7.0
73.45
4.5
LPX-NC-38.1-200
38.1
1.5
200
6.4
98.4
4.5
LPX-NC-38.1-250
38.1
1.5
250
6.0
122.74
4.5
LPX-NC-38.1-500
38.1
1.5
500
5.2
244.9
4.5
LPX-NC-38.1-1000
38.1
1.5
1000
4.9
496.6
4.5
LPX-NC-38.1-2000
38.1
1.5
2000
4.7
981.7
4.5
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
LPX-NC-40-50.8
40
1.575
50.8
14.6
24.89
4.5
LPX-NC-40-63.5
40
1.575
63.5
11.8
31.12
4.5
LPX-NC-40-76.2
40
1.575
76.2
10.3
37.41
4.5
LPX-NC-40-100
40
1.575
100
8.8
49.09
4.5
LPX-NC-40-150
40
1.575
150
7.3
73.45
4.5
LPX-NC-40-200
40
1.575
200
6.6
98.4
4.5
LPX-NC-40-250
40
1.575
250
6.1
122.74
4.5
LPX-NC-40-500
40
1.575
500
5.3
244.9
4.5
LPX-NC-40-1000
40
1.575
1000
4.9
496.6
4.5
LPX-NC-40-2000
40
1.575
2000
4.7
981.7
4.5
LPX-NC-50.8-76.2
50.8
2
76.2
14.4
37.41
4.5
LPX-NC-50.8-100
50.8
2
100
11.6
49.09
4.5
LPX-NC-50.8-150
50.8
2
150
9.0
73.45
4.5
LPX-NC-50.8-200
50.8
2
200
7.8
98.4
4.5
LPX-NC-50.8-250
50.8
2
250
7.2
122.74
4.5
LPX-NC-50.8-500
50.8
2
500
5.8
244.9
4.5
LPX-NC-50.8-1000
50.8
2
1000
5.1
496.6
4.5
LPX-NC-50.8-2000
50.8
2
2000
4.8
981.7
4.5
LPX-NC-63.5-100
63.5
2.5
100
16.1
49.09
4.5
LPX-NC-63.5-150
63.5
2.5
150
11.7
73.45
4.5
LPX-NC-63.5-200
63.5
2.5
200
9.8
98.4
4.5
LPX-NC-63.5-250
63.5
2.5
250
8.7
122.74
4.5
LPX-NC-63.5-500
63.5
2.5
500
6.6
244.9
4.5
LPX-NC-63.5-1000
63.5
2.5
1000
5.5
496.6
4.5
LPX-NC-63.5-2000
63.5
2.5
2000
5.0
981.7
4.5
LPX-NC-76.2-150
76.2
3
150
15.7
73.45
5
LPX-NC-76.2-200
76.2
3
200
12.7
98.4
5
LPX-NC-76.2-250
76.2
3
250
11.1
122.74
5
LPX-NC-76.2-500
76.2
3
500
8.0
244.9
5
LPX-NC-76.2-1000
76.2
3
1000
6.5
496.6
5
LPX-NC-76.2-2000
76.2
3
2000
5.7
981.7
5
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
Zinc Selenide (ZnSe CVD)
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
LPX-ZC-10-12.7
10
 0.394
12.7
2.7
17.783
2
LPX-ZC-10-25.4
10
 0.394
25.4
2.4
35.56
2
LPX-ZC-10-38.1
10
 0.394
38.1
2.2
53.58
2
LPX-ZC-10-50.8
10
0.394
50.8
2.2
71.29
2
LPX-ZC-10-63.5
10
 0.394
63.5
2.1
89.13
2
LPX-ZC-10-76.2
10
 0.394
76.2
2.1
107.65
2
LPX-ZC-10-100
10
 0.394
100
2.1
140.28
2
LPX-ZC-12.7-12.7
12.7
0.5
12.7
3.2
17.783
2
LPX-ZC-12.7-25.4
12.7
0.5
25.4
2.6
35.56
2
LPX-ZC-12.7-38.1
12.7
0.5
38.1
2.4
53.58
2
LPX-ZC-12.7-50.8
12.7
0.5
50.8
2.3
71.29
2
LPX-ZC-12.7-63.5
12.7
0.5
63.5
2.2
89.13
2
LPX-ZC-12.7-76.2
12.7
0.5
76.2
2.2
107.65
2
LPX-ZC-12.7-100
12.7
0.5
100
2.1
140.28
2
LPX-ZC-12.7-150
12.7
0.5
150
2.1
210.4
2
LPX-ZC-12.7-200
12.7
0.5
200
2.1
278.6
2
LPX-ZC-25.4-12.7
25.4
1
12.7
7.3
17.783
2
LPX-ZC-25.4-25.4
25.4
1
25.4
4.3
35.56
2
LPX-ZC-25.4-38.1
25.4
1
38.1
3.5
53.58
2
LPX-ZC-25.4-50.8
25.4
1
50.8
3.1
71.29
2
LPX-ZC-25.4-63.5
25.4
1
63.5
2.9
89.13
2
LPX-ZC-25.4-76.2
25.4
1
76.2
2.8
107.65
2
LPX-ZC-25.4-100
25.4
1
100
2.6
140.28
2
LPX-ZC-25.4-150
25.4
1
150
2.4
210.4
2
LPX-ZC-25.4-200
25.4
1
200
2.3
278.6
2
LPX-ZC-25.4-250
25.4
1
250
2.2
349.9
2
LPX-ZC-25.4-500
25.4
1
500
2.1
701.5
2
LPX-ZC-25.4-1000
25.4
1
1000
2.1
1412.5
2
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm
LPX-ZC-38.1-25.4
38.1
1.5
25.4
7.5
35.56
2
LPX-ZC-38.1-38.1
38.1
1.5
38.1
5.5
53.58
2
LPX-ZC-38.1-50.8
38.1
1.5
50.8
4.6
71.29
2
LPX-ZC-38.1-63.5
38.1
1.5
63.5
4.1
89.13
2
LPX-ZC-38.1-76.2
38.1
1.5
76.2
3.7
107.65
2
LPX-ZC-38.1-100
38.1
1.5
100
3.3
140.28
2
LPX-ZC-38.1-150
38.1
1.5
150
2.9
210.4
2
LPX-ZC-38.1-200
38.1
1.5
200
2.7
278.6
2
LPX-ZC-38.1-250
38.1
1.5
250
2.5
349.9
2
LPX-ZC-38.1-500
38.1
1.5
500
2.3
701.5
2
LPX-ZC-38.1-1000
38.1
1.5
1000
2.1
1412.5
2
LPX-ZC-38.1-2000
38.1
1.5
2000
2.1
2805
2
LPX-ZC-40-25.4
40
1.575
25.4
8.2
35.56
2
LPX-ZC-40-38.1
40
1.575
38.1
5.9
53.58
2
LPX-ZC-40-50.8
40
1.575
50.8
4.9
71.29
2
LPX-ZC-40-63.5
40
1.575
63.5
4.3
89.13
2
LPX-ZC-40-76.2
40
1.575
76.2
3.9
107.65
2
LPX-ZC-40-100
40
1.575
100
3.4
140.28
2
LPX-ZC-40-150
40
1.575
150
3.0
210.4
2
LPX-ZC-40-200
40
1.575
200
2.7
278.6
2
LPX-ZC-40-250
40
1.575
250
2.6
349.9
2
LPX-ZC-40-500
40
1.575
500
2.3
701.5
2
LPX-ZC-40-1000
40
1.575
1000
2.1
1412.5
2
LPX-ZC-40-2000
40
1.575
2000
2.1
2805
2
LPX-ZC-50.8-38.1
50.8
2
38.1
8.9
53.58
2.5
LPX-ZC-50.8-50.8
50.8
2
50.8
7.2
71.29
2.5
LPX-ZC-50.8-63.5
50.8
2
63.5
6.2
89.13
2.5
LPX-ZC-50.8-76.2
50.8
2
76.2
5.5
107.65
2.5
LPX-ZC-50.8-100
50.8
2
100
4.3
140.28
2.5
LPX-ZC-50.8-150
50.8
2
150
4.0
210.4
2.5
LPX-ZC-50.8-200
50.8
2
200
3.7
278.6
2.5
LPX-ZC-50.8-250
50.8
2
250
3.4
349.9
2.5
LPX-ZC-50.8-500
50.8
2
500
3.0
701.5
2.5
LPX-ZC-50.8-1000
50.8
2
1000
2.7
1412.5
2.5
LPX-ZC-50.8-2000
50.8
2
2000
2.6
2805
2.5
LPX-ZC-63.5-50.8
63.5
2.5
50.8
10.0
71.29
2.5
LPX-ZC-63.5-63.5
63.5
2.5
63.5
8.3
89.13
2.5
LPX-ZC-63.5-76.2
63.5
2.5
76.2
7.3
107.65
2.5
LPX-ZC-63.5-100
63.5
2.5
100
6.1
140.28
2.5
LPX-ZC-63.5-150
63.5
2.5
150
4.9
210.4
2.5
LPX-ZC-63.5-200
63.5
2.5
200
4.3
278.6
2.5
LPX-ZC-63.5-250
63.5
2.5
250
3.9
349.9
2.5
LPX-ZC-63.5-500
63.5
2.5
500
3.2
701.5
2.5
LPX-ZC-63.5-1000
63.5
2.5
1000
2.9
1412.5
2.5
LPX-ZC-63.5-2000
63.5
2.5
2000
2.7
2805
2.5
LPX-ZC-76.2-63.5
76.2
3
63.5
11.6
89.13
3
LPX-ZC-76.2-76.2
76.2
3
76.2
10.0
107.65
3
LPX-ZC-76.2-100
76.2
3
100
8.3
140.28
3
LPX-ZC-76.2-150
76.2
3
150
6.5
210.4
3
LPX-ZC-76.2-200
76.2
3
200
5.6
278.6
3
LPX-ZC-76.2-250
76.2
3
250
5.1
349.9
3
LPX-ZC-76.2-500
76.2
3
500
4.0
701.5
3
LPX-ZC-76.2-1000
76.2
3
1000
3.5
1412.5
3
LPX-ZC-76.2-2000
76.2
3
2000
3.3
2805
3
CAT#
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius, mm
Edge Thickness, mm

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