OPTICAL PRODUCTION
CRYSTAL OPTICS
OPTICAL  COATINGS

www.optotl.com

:: Russian  ::  English  ::  Site map  ::  Feedback ::

:: Main :: Materials :: References :: Contacts :: Founders ::

 

 



 

Interferometers  ::  Sapphire optics  ::  Optical coatings

 
 
 

Meniscus Lenses Negative

Select a material for a component

Germanium (Ge)
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  convex, mm
Radius concave, mm
Sag of  the convex
surface, mm
Sag of  the concave
surface, mm
Edge Thickness, mm
LNM- GE -10-12.7
10
0.394
-12.7
 2.1
21.48
12.706
 0.6
1.0
2.5
LNM- GE -10-25.4
10
0.394
-25.4
 2.3
40.74
25.41
 0.3
0.5
2.5
LNM- GE -10-38.1
10
0.394
-38.1
 2.4
59.98
38.11
 0.2
0.3
2.5
LNM- GE -10-50.8
10
0.394
-50.8
 2.4
79.07
50.82
 0.2
0.2
2.5
LNM- GE -10-63.5
10
0.394
-63.5
 2.4
97.72
63.39
 0.1
0.2
2.5
LNM- GE -12.7-12.7
12.7
0.5
-12.7
 2.3
21.63
12.706
 1.0
1.7
3.0
LNM- GE -12.7-25.4
12.7
0.5
-25.4
 2.7
41.3
25.41
 0.5
0.8
3.0
LNM- GE -12.7-38.1
12.7
0.5
-38.1
 2.8
60.12
38.11
 0.3
0.5
3.0
LNM- GE -12.7-50.8
12.7
0.5
-50.8
 2.9
79.8
50.82
 0.3
0.4
3.0
LNM- GE -12.7-63.5
12.7
0.5
-63.5
 2.9
98.4
63.39
 0.2
0.3
3.0
LNM- GE -25.4-25.4
25.4
1
-25.4
 2.1
40.74
25.41
 2.0
3.4
3.0
LNM- GE -25.4-38.1
25.4
1
-38.1
 2.7
60.12
38.11
 1.4
2.2
3.5
LNM- GE -25.4-50.8
25.4
1
-50.8
 2.9
79.8
50.82
 1.0
1.6
3.5
LNM- GE -25.4-63.5
25.4
1
-63.5
 3.0
98.4
63.39
 0.8
1.3
3.5
LNM- GE -25.4-76.2
25.4
1
-76.2
 3.1
116.41
75.68
 0.7
1.1
3.5
LNM- GE -25.4-100
25.4
1
-100
 3.2
153.11
100
 0.5
0.8
3.5
LNM- GE -25.4-150
25.4
1
-150
 3.3
230.7
151.01
 0.4
0.5
3.5
LNM- GE -25.4-200
25.4
1
-200
 3.4
302.7
199.99
 0.3
0.4
3.5
LNM- GE -38.1-38.1
38.1
1.5
-38.1
 2.0
59.43
38.11
 3.1
5.1
4.0
LNM- GE -38.1-50.8
38.1
1.5
-50.8
 2.6
79.07
50.82
 2.3
3.7
4.0
LNM- GE -38.1-63.5
38.1
1.5
-63.5
 2.9
98.4
63.39
 1.9
2.9
4.0
LNM- GE -38.1-76.2
38.1
1.5
-76.2
 3.1
116.41
75.68
 1.6
2.4
4.0
LNM- GE -38.1-100
38.1
1.5
-100
 3.4
153.11
100
 1.2
1.8
4.0
LNM- GE -38.1-150
38.1
1.5
-150
 3.6
230.7
151.01
 0.8
1.2
4.0
LNM- GE -38.1-200
38.1
1.5
-200
 3.7
304.8
199.99
 0.6
0.9
4.0
LNM- GE -38.1-250
38.1
1.5
-250
 3.8
378.4
250
 0.5
0.7
4.0
CAT# 
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius  convex, mm
Radius concave, mm
Sag of  the convex
surface, mm
Sag of  the concave
surface, mm
Edge Thickness, mm
LNM- GE -40-38.1
40
1.575
-38.1
 2.3
59.98
38.11
 3.4
5.7
4.5
LNM- GE -40-50.8
40
1.575
-50.8
 2.9
79.8
50.82
 2.5
4.1
4.5
LNM- GE -40-63.5
40
1.575
-63.5
 3.3
98.4
63.39
 2.1
3.2
4.5
LNM- GE -40-76.2
40
1.575
-76.2
 3.5
117.22
75.68
 1.7
2.7
4.5
LNM- GE -40-100
40
1.575
-100
 3.8
154.17
100
 1.3
2.0
4.5
LNM- GE -40-150
40
1.575
-150
 4.0
231.7
151.01
 0.9
1.3
4.5
LNM- GE -40-200
40
1.575
-200
 4.2
304.8
199.99
 0.7
1.0
4.5
LNM- GE -40-250
40
1.575
-250
 4.2
378.4
250
 0.5
0.8
4.5
LNM- GE -50.8-50.8
50.8
2
-50.8
 2.4
79.07
50.82
 4.2
6.8
5.0
LNM- GE -50.8-63.5
50.8
2
-63.5
 3.0
98.4
63.39
 3.3
5.3
5.0
LNM- GE -50.8-76.2
50.8
2
-76.2
 3.4
117.22
75.68
 2.8
4.4
5.0
LNM- GE -50.8-100
50.8
2
-100
 3.8
154.17
100
 2.1
3.3
5.0
LNM- GE -50.8-150
50.8
2
-150
 4.2
231.7
151.01
 1.4
2.2
5.0
LNM- GE -50.8-200
50.8
2
-200
 4.4
304.8
199.99
 1.1
1.6
5.0
LNM- GE -50.8-250
50.8
2
-250
 4.6
378.4
250
 0.9
1.3
5.0
LNM- GE -50.8-500
50.8
2
-500
 4.8
755.1
498.9
 0.4
0.6
5.0
LNM- GE -63.5-63.5
63.5
2.5
-63.5
 2.3
97.72
63.39
 5.3
8.5
5.5
LNM- GE -63.5-76.2
63.5
2.5
-76.2
 2.9
116.41
75.68
 4.4
7.0
5.5
LNM- GE -63.5-100
63.5
2.5
-100
 3.6
154.17
100
 3.3
5.2
5.5
LNM- GE -63.5-150
63.5
2.5
-150
 4.3
231.7
151.01
 2.2
3.4
5.5
LNM- GE -63.5-200
63.5
2.5
-200
 4.6
304.8
199.99
 1.7
2.5
5.5
LNM- GE -63.5-250
63.5
2.5
-250
 4.8
378.4
250
 1.3
2.0
5.5
LNM- GE -63.5-500
63.5
2.5
-500
 5.2
755.1
498.9
 0.7
1.0
5.5
LNM- GE -76.2-76.2
76.2
3
-76.2
 2.1
116.41
75.68
 6.4
10.3
6.0
LNM- GE -76.2-100
76.2
3
-100
 3.2
154.17
100
 4.8
7.5
6.0
LNM- GE -76.2-150
76.2
3
-150
 4.3
231.7
151.01
 3.2
4.9
6.0
LNM- GE -76.2-200
76.2
3
-200
 4.7
304.8
199.99
 2.4
3.7
6.0
LNM- GE -76.2-250
76.2
3
-250
 5.0
378.4
250
 1.9
2.9
6.0
LNM- GE -76.2-500
76.2
3
-500
 5.5
755.1
498.9
 1.0
1.5
6.0
LNM- GE -76.2-1000
76.2
3
-1000
 5.8
1513.6
1004.6
 0.5
0.7
6.0
CAT# 
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius  convex, mm
Radius concave, mm
Sag of  the convex
surface, mm
Sag of  the concave
surface, mm
Edge Thickness,
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  convex, mm
Radius concave, mm
Sag of  the convex
surface, mm
Sag of  the concave
surface, mm
Edge Thickness, mm
LNM- SI -10-12.7
10
0.394
-12.7
 2.0
24.15
12.706
 0.5
1.0
2.5
LNM- SI -10-25.4
10
0.394
-25.4
 2.3
46.24
25.41
 0.3
0.5
2.5
LNM- SI -10-38.1
10
0.394
-38.1
 2.4
67.92
38.11
 0.2
0.3
2.5
LNM- SI -10-50.8
10
0.394
-50.8
 2.4
89.74
50.82
 0.1
0.2
2.5
LNM- SI -10-63.5
10
0.394
-63.5
 2.4
111.17
63.39
 0.1
0.2
2.5
LNM- SI -12.7-12.7
12.7
0.5
-12.7
 2.1
24.15
12.706
 0.9
1.7
3.0
LNM- SI -12.7-25.4
12.7
0.5
-25.4
 2.6
46.24
25.41
 0.4
0.8
3.0
LNM- SI -12.7-38.1
12.7
0.5
-38.1
 2.8
67.92
38.11
 0.3
0.5
3.0
LNM- SI -12.7-50.8
12.7
0.5
-50.8
 2.8
89.74
50.82
 0.2
0.4
3.0
LNM- SI -12.7-63.5
12.7
0.5
-63.5
 2.9
111.17
63.39
 0.2
0.3
3.0
LNM- SI -25.4-25.4
25.4
1
-25.4
 1.9
45.6
25.41
 1.8
3.4
3.0
LNM- SI -25.4-38.1
25.4
1
-38.1
 2.5
67.92
38.11
 1.2
2.2
3.5
LNM- SI -25.4-50.8
25.4
1
-50.8
 2.8
89.74
50.82
 0.9
1.6
3.5
LNM- SI -25.4-63.5
25.4
1
-63.5
 2.9
111.17
63.39
 0.7
1.3
3.5
LNM- SI -25.4-76.2
25.4
1
-76.2
 3.0
131.22
75.68
 0.6
1.1
3.5
LNM- SI -25.4-100
25.4
1
-100
 3.2
172.58
100
 0.5
0.8
3.5
LNM- SI -25.4-150
25.4
1
-150
 3.3
262.4
151.01
 0.3
0.5
3.5
LNM- SI -25.4-200
25.4
1
-200
 3.3
345.1
199.99
 0.2
0.4
3.5
LNM- SI -38.1-38.1
38.1
1.5
-38.1
 1.7
66.68
38.11
 2.8
5.1
4.0
LNM- SI -38.1-50.8
38.1
1.5
-50.8
 2.3
89.33
50.82
 2.1
3.7
4.0
LNM- SI -38.1-63.5
38.1
1.5
-63.5
 2.7
111.17
63.39
 1.6
2.9
4.0
LNM- SI -38.1-76.2
38.1
1.5
-76.2
 3.0
131.22
75.68
 1.4
2.4
4.0
LNM- SI -38.1-100
38.1
1.5
-100
 3.2
174.58
100
 1.0
1.8
4.0
LNM- SI -38.1-150
38.1
1.5
-150
 3.5
262.4
151.01
 0.7
1.2
4.0
LNM- SI -38.1-200
38.1
1.5
-200
 3.6
345.1
199.99
 0.5
0.9
4.0
LNM- SI -38.1-250
38.1
1.5
-250
 3.7
427.6
250
 0.4
0.7
4.0
CAT# 
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius  convex, mm
Radius concave, mm
Sag of  the convex
surface, mm
Sag of  the concave
surface, mm
Edge Thickness, mm
LNM- SI -40-38.1
40
1.575
-38.1
 1.9
66.68
38.11
 3.1
5.7
4.5
LNM- SI -40-50.8
40
1.575
-50.8
 2.7
89.33
50.82
 2.3
4.1
4.5
LNM- SI -40-63.5
40
1.575
-63.5
 3.1
111.17
63.39
 1.8
3.2
4.5
LNM- SI -40-76.2
40
1.575
-76.2
 3.3
131.22
75.68
 1.5
2.7
4.5
LNM- SI -40-100
40
1.575
-100
 3.6
174.58
100
 1.1
2.0
4.5
LNM- SI -40-150
40
1.575
-150
 3.9
262.4
151.01
 0.8
1.3
4.5
LNM- SI -40-200
40
1.575
-200
 4.1
345.1
199.99
 0.6
1.0
4.5
LNM- SI -40-250
40
1.575
-250
 4.2
427.6
250
 0.5
0.8
4.5
LNM- SI -50.8-50.8
50.8
2
-50.8
 1.9
89.33
50.82
 3.7
6.8
5.0
LNM- SI -50.8-63.5
50.8
2
-63.5
 2.6
111.17
63.39
 2.9
5.3
5.0
LNM- SI -50.8-76.2
50.8
2
-76.2
 3.1
131.22
75.68
 2.5
4.4
5.0
LNM- SI -50.8-100
50.8
2
-100
 3.6
174.58
100
 1.9
3.3
5.0
LNM- SI -50.8-150
50.8
2
-150
 4.1
262.4
151.01
 1.2
2.2
5.0
LNM- SI -50.8-200
50.8
2
-200
 4.3
345.1
199.99
 0.9
1.6
5.0
LNM- SI -50.8-250
50.8
2
-250
 4.5
427.6
250
 0.8
1.3
5.0
LNM- SI -50.8-500
50.8
2
-500
 4.7
845.3
498.9
 0.4
0.6
5.0
LNM- SI -63.5-63.5
63.5
2.5
-63.5
 1.7
109.65
63.39
 4.7
8.5
5.5
LNM- SI -63.5-76.2
63.5
2.5
-76.2
 2.4
131.22
75.68
 3.9
7.0
5.5
LNM- SI -63.5-100
63.5
2.5
-100
 3.2
174.58
100
 2.9
5.2
5.5
LNM- SI -63.5-150
63.5
2.5
-150
 4.1
262.4
151.01
 1.9
3.4
5.5
LNM- SI -63.5-200
63.5
2.5
-200
 4.4
345.1
199.99
 1.5
2.5
5.5
LNM- SI -63.5-250
63.5
2.5
-250
 4.7
427.6
250
 1.2
2.0
5.5
LNM- SI -63.5-500
63.5
2.5
-500
 5.1
845.3
498.9
 0.6
1.0
5.5
LNM- SI -76.2-76.2
76.2
3
-76.2
 1.9
131.22
75.68
 5.7
10.3
6.5
LNM- SI -76.2-100
76.2
3
-100
 3.2
174.58
100
 4.2
7.5
6.5
LNM- SI -76.2-150
76.2
3
-150
 4.4
262.4
151.01
 2.8
4.9
6.5
LNM- SI -76.2-200
76.2
3
-200
 4.9
345.1
199.99
 2.1
3.7
6.5
LNM- SI -76.2-250
76.2
3
-250
 4.8
427.6
250
 1.7
2.9
6.5
LNM- SI -76.2-500
76.2
3
-500
 5.9
845.3
498.9
 0.9
1.5
6.5
LNM- SI -76.2-1000
76.2
3
-1000
 6.2
1706.1
1004.6
 0.4
0.7
6.5
CAT# 
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius  convex, mm
Radius concave, mm
Sag of  the convex
surface, mm
Sag of  the concave
surface, 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  convex, mm
Radius concave, mm
Sag of  the convex
surface, mm
Sag of  the concave
surface, mm
Edge Thickness, mm
LNM-ZC-10-12.7
10
0.394
-12.7
2.2
 47.64
12.706
 0.3
1.0
3.0
LNM-ZC-10-25.4
10
0.394
-25.4
2.6
 93.76
25.41
 0.1
0.5
3.0
LNM-ZC-10-38.1
10
0.394
-38.1
2.8
 140.28
38.11
 0.1
0.3
3.0
LNM-ZC-10-50.8
10
0.394
-50.8
2.8
 184.93
50.82
 0.1
0.2
3.0
LNM-ZC-12.7-12.7
12.7
0.5
-12.7
 2.2
 47.64
12.706
 0.4
1.7
3.5
LNM-ZC-12.7-25.4
12.7
0.5
-25.4
 2.9
 93.76
25.41
 0.2
0.8
3.5
LNM-ZC-12.7-38.1
12.7
0.5
-38.1
 3.1
 140.28
38.11
 0.1
0.5
3.5
LNM-ZC-12.7-50.8
12.7
0.5
-50.8
 3.2
 184.93
50.82
 0.1
0.4
3.5
LNM-ZC-12.7-63.5
12.7
0.5
-63.5
 3.3
 226.5
63.39
 0.1
0.3
3.5
LNM-ZC-25.4-25.4
25.4
1
-25.4
 2.0
 93.76
25.41
 0.9
3.4
4.5
LNM-ZC-25.4-38.1
25.4
1
-38.1
 2.9
 140.28
38.11
 0.6
2.2
4.5
LNM-ZC-25.4-50.8
25.4
1
-50.8
 3.3
 184.93
50.82
 0.4
1.6
4.5
LNM-ZC-25.4-63.5
25.4
1
-63.5
 3.6
 226.5
63.39
 0.4
1.3
4.5
LNM-ZC-25.4-76.2
25.4
1
-76.2
 3.7
262.4
75.68
 0.3
1.1
4.5
LNM-ZC-25.4-100
25.4
1
-100
 3.9
349.9
100
 0.2
0.8
4.5
LNM-ZC-25.4-150
25.4
1
-150
 4.1
539.5
151.01
 0.2
0.5
4.5
LNM-ZC-25.4-200
25.4
1
-200
 4.2
701.5
199.99
 0.1
0.4
4.5
LNM-ZC-38.1-38.1
38.1
1.5
-38.1
 2.2
 140.28
38.11
 1.3
5.1
6.0
LNM-ZC-38.1-50.8
38.1
1.5
-50.8
 3.3
 184.93
50.82
 1.0
3.7
6.0
LNM-ZC-38.1-63.5
38.1
1.5
-63.5
 3.9
 226.5
63.39
 0.8
2.9
6.0
LNM-ZC-38.1-76.2
38.1
1.5
-76.2
 4.3
262.4
75.68
 0.7
2.4
6.0
LNM-ZC-38.1-100
38.1
1.5
-100
 4.7
363.9
100
 0.5
1.8
6.0
LNM-ZC-38.1-150
38.1
1.5
-150
 5.1
539.5
151.01
 0.3
1.2
6.0
LNM-ZC-38.1-200
38.1
1.5
-200
 5.3
701.5
199.99
 0.3
0.9
6.0
LNM-ZC-38.1-250
38.1
1.5
-250
 5.5
895.4
250
 0.2
0.7
6.0
CAT# 
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius  convex, mm
Radius concave, mm
Sag of  the convex
surface, mm
Sag of  the concave
surface, mm
Edge Thickness, mm
LNM-ZC-40-38.1
40
1.575
-38.1
 2.3
 140.28
38.11
 1.4
5.7
6.5
LNM-ZC-40-50.8
40
1.575
-50.8
 3.5
 184.93
50.82
 1.1
4.1
6.5
LNM-ZC-40-63.5
40
1.575
-63.5
 4.1
 226.5
63.39
 0.9
3.2
6.5
LNM-ZC-40-76.2
40
1.575
-76.2
 4.6
262.4
75.68
 0.8
2.7
6.5
LNM-ZC-40-100
40
1.575
-100
 5.0
363.9
100
 0.6
2.0
6.5
LNM-ZC-40-150
40
1.575
-150
 5.5
539.5
151.01
 0.4
1.3
6.5
LNM-ZC-40-200
40
1.575
-200
 5.8
701.5
199.99
 0.3
1.0
6.5
LNM-ZC-40-250
40
1.575
-250
   5.9 
895.4
250
 0.2
0.8
6.5
LNM-ZC-50.8-50.8
50.8
2
-50.8
 2.4
 184.93
50.82
 1.8
6.8
7.5
LNM-ZC-50.8-63.5
50.8
2
-63.5
 3.6
 226.5
63.39
 1.4
5.3
7.5
LNM-ZC-50.8-76.2
50.8
2
-76.2
 4.3
262.4
75.68
 1.2
4.4
7.5
LNM-ZC-50.8-100
50.8
2
-100
 5.1
363.9
100
 0.9
3.3
7.5
LNM-ZC-50.8-150
50.8
2
-150
 5.9
539.5
151.01
 0.6
2.2
7.5
LNM-ZC-50.8-200
50.8
2
-200
 6.3
701.5
199.99
 0.5
1.6
7.5
LNM-ZC-50.8-250
50.8
2
-250
 6.6
895.4
250
 0.4
1.3
7.5
LNM-ZC-50.8-500
50.8
2
-500
 7.0
1706.1
498.9
 0.2
0.6
7.5
LNM-ZC-63.5-63.5
63.5
2.5
-63.5
 2.2
 226.5
63.39
 2.2
8.5
8.5
LNM-ZC-63.5-76.2
63.5
2.5
-76.2
 3.4
262.4
75.68
 1.9
7.0
8.5
LNM-ZC-63.5-100
63.5
2.5
-100
 4.7
363.9
100
 1.4
5.2
8.5
LNM-ZC-63.5-150
63.5
2.5
-150
 6.1
539.5
151.01
 0.9
3.4
8.5
LNM-ZC-63.5-200
63.5
2.5
-200
 6.7
701.5
199.99
 0.7
2.5
8.5
LNM-ZC-63.5-250
63.5
2.5
-250
 7.0
895.4
250
 0.6
2.0
8.5
LNM-ZC-63.5-500
63.5
2.5
-500
 7.8
1706.1
498.9
 0.3
1.0
8.5
LNM-ZC-76.2-76.2
76.2
3
-76.2
 2.0
262.4
75.68
 2.8
10.3
9.5
LNM-ZC-76.2-100
76.2
3
-100
 4.0
363.9
100
 2.0
7.5
9.5
LNM-ZC-76.2-150
76.2
3
-150
 6.0
539.5
151.01
   1.3 
4.9
9.5
LNM-ZC-76.2-200
76.2
3
-200
 6.9
701.5
199.99
 1.0
3.7
9.5
LNM-ZC-76.2-250
76.2
3
-250
 7.4
895.4
250
 0.8
2.9
9.5
LNM-ZC-76.2-500
76.2
3
-500
 8.5
1706.1
498.9
 0.4
1.5
9.5
LNM-ZC-76.2-1000
76.2
3
-1000
 9.0
3532
1004.6
 0.2
0.7
9.5
CAT# 
Diameter, mm
Diameter, in
Focal 
Length, mm
Center Thickness, mm
Radius  convex, mm
Radius concave, mm
Sag of  the convex
surface, mm
Sag of  the concave
surface, mm
Edge Thickness, mm

Select a material for a component

 
  Joint Stock Company "Opto - Technological Laboratory"
  9,Mendeleevskaja ul., Saint-Petersburg, Russia
  E-mail: sales@optotl.ru		 :: Main :: Materials :: References :: Contacts :: Founders  ::

Phone/Fax:   +7 (812) 347-76-90                        Made in SOTBI 2007 ©