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  CO2 Laser Optics & Consumable Products / Lens / Meniscus Lenses
Meniscus Lenses
      RGQ and Order
Meniscus Lenses
Meniscus Lenses

Meniscus lenses are designed to minimize spherical aberration producing a minimum focal spot size for incoming collimated light. In addition to the standard focal lengths listed below, II-VI maintains an extensive inventory of test plates and tooling, resulting in no additional tooling charges for focal length fabrication. Besides the plano-convex, meniscus, and aspheric lens shapes offered in this catalog, II-VI routinely fabricates biconvex and negative focal length lenses upon request. Our in-house optical engineers can design the component or optical system which provides the exact performance you require. Please contact our sales and engineering staff for a quotation.

Specifications
Standards
Effective Focal Length (EFL) Tolerance
±2%
Dimensional Tolerance
Diameter: +0.000”-0.005”
Thickness: ±0.010”
Edge Thickness Variation (ETV)
<= 0.002”
Clear Aperture (polished)
90% of diameter
Surface Figure at 0.63µm
Varies depending upon radius
Scratch-Dig
20-10
AR Coating Reflectivity per Surface at 10.6µm
<= 0.20%

Part #
Description
Diameter
(inches)
Diameter
(mm)
Focal
Length
Edge
Thickness
(inches)
Edge
Thickness
(mm)
247275
ZnSe
0.5
12.7
1.5”
0.060
1.52
994141
ZnSe
1.0
25.4
1.0”
0.085
2.16
350342
ZnSe
1.0
25.4
2.5”
0.085
2.16
376587
ZnSe
1.0
25.4
5.0”
0.085
2.16
566650
ZnSe
1.1
27.94
1.5”
0.085
2.16
932739
ZnSe
1.1
27.94
2.5”
0.085
2.16
801758
ZnSe
1.1
27.94
5.0”
0.085
2.16
285767
ZnSe
1.5
38.1
2.5”
0.085
2.16
507790
ZnSe
1.5
38.1
5.0”
0.236
5.99
406294
ZnSe
1.5
38.1
5.0”
0.290
7.37
767963
ZnSe
1.5
38.1
5.0”
0.354
8.99
452726
ZnSe
1.5
38.1
7.5”
0.125
3.18
784964
ZnSe
1.5
38.1
7.5”
0.236
5.99
702232
ZnSe
1.5
38.1
7.5”
0.290
7.37
570721
ZnSe
1.5
38.1
7.5”
0.354
8.99
935669
ZnSe
2.0
50.8
5.0”
0.100
2.54
695399
ZnSe
2.0
50.8
7.5”
0.380
9.65
296875
ZnSe
2.0
50.8
10.0”
0.100
2.54
490154
ZnSe
2.5
63.5
5.0”
0.160
4.06
596352
ZnSe
2.5
63.5
7.5”
0.160
4.06
286449
ZnSe
2.5
63.5
10.0”
0.160
4.06

 

   
 
           
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