ZnSe Focusing Lens

ZnSe Focusing Lens Diagram

Our company have the ZnSe Plano-Convex & Plano Concave Focusing Lens (LZ series) and Positive Meniscus Focusing Lens (LZM-series).
ZnSe Plano-Convex Lenses have a positive focal length and are used to focus a collimated beam to small spot size. ZnSe Plano-Concave lenses have a negative focal length and are used for diverging collimated beams. The curved surfaces of these lenses should face the source to minimize spherical aberration.

Positive Meniscus (Convex-Concave) Lenses are converging lenses being thick at the center and thin at the edges and produce real images. The radius of the curvature of the concave side is greater than the convex side of the lens. The convex side of the lens should face the source to minimize spherical aberration. It is designed to minimize spherical aberration and produce minimum focal spot size for incoming collimated light.
These Lenses are widely used for CO2 laser cutting, laser welding and laser heat treatment.

Specifications

Diameter Tolerance

+0/-0.13mm

Thickness Tolerance

±0.25mm

Focal Length Tolerance

±2%

Edge Thickness  Variation (ETV)

≤3 arc min.

Clear Aperture

>90%

Surface Flatness

λ/4 per 1″Dia@632.8nm

Surface Quality

40-20 S-D

AR Coating

R<0.2% per surface @10.6μm

Product TypePart NumberWavelength (nm)Diameter (mm)EFL (mm)MaterialET (mm)AssemblyCT (mm)BFL (mm)
Plano-ConvexLZ-0.5-1.5-ET210600 / 940012.738.1ZnSe2.0Single2.437.1
Plano-ConvexLZ-0.6-1.5-ET1.510600 / 940015.238.1ZnSe1.5Single2.037.3
Plano-ConvexLZ-0.6-1.5-ET210600 / 940015.238.1ZnSe2.0Single2.537.0
Plano-ConvexLZ-0.6-2-ET210600 / 940015.250.8ZnSe2.0Single2.449.8
Plano-ConvexLZ-0.6-2.5-ET210600 / 940015.263.5ZnSe2.0Single2.362.5
Plano-ConvexLZ-0.6-4-ET210600 / 940015.2101.6ZnSe2.0Single2.2100.7
Plano-ConvexLZ-0.75-1-ET210600 / 940019.025.4ZnSe2.0Single3.324.0
Plano-ConvexLZ-0.75-1.5-ET210600 / 940019.038.1ZnSe2.0Single2.936.9
Plano-ConvexLZ-0.75-2-ET210600 / 940019.050.8ZnSe2.0Single2.649.7
Plano-ConvexLZ-0.75-2.5-ET210600 / 940019.063.5ZnSe2.0Single2.562.5
Plano-ConvexLZ-0.75-3-ET210600 / 940019.076.2ZnSe2.0Single2.475.2
Plano-ConvexLZ-0.75-4-ET210600 / 940019.0101.6ZnSe2.0Single2.3100.6
Plano-ConvexLZ-0.75-5-ET210600 / 940019.0127.0ZnSe2.0Single2.3126.1
Plano-ConvexLZ-0.75-12-ET210600 / 940019.0304.8ZnSe2.0Single2.1303.9
Plano-ConvexLZ-20-47-ET210600 / 940020.047.0ZnSe2.0Single2.845.9
Plano-ConvexLZ-20-72-ET310600 / 940020.072.0ZnSe3.0Single3.570.5
Plano-ConvexLZ-25-3-ET210600 / 940025.076.2ZnSe2.0Single2.775.1
Plano-ConvexLZ-1-30-ET310600 / 940025.430.0ZnSe3.0Single5.027.9
Plano-ConvexLZ-1-1.5-ET310600 / 940025.438.1ZnSe3.0Single4.536.2
Plano-ConvexLZ-1-2-ET210600 / 940025.450.8ZnSe2.0Single3.149.5
Plano-ConvexLZ-1-2-ET310600 / 940025.450.8ZnSe3.0Single4.149.1
Plano-ConvexLZ-1-2.5-ET310600 / 940025.463.5ZnSe3.0Single3.961.9
Plano-ConvexLZ-1-3-ET310600 / 940025.476.2ZnSe3.0Single3.874.6
Plano-ConvexLZ-1-4-ET310600 / 940025.4101.6ZnSe3.0Single3.6100.1
Plano-ConvexLZ-1-5-ET310600 / 940025.4127.0ZnSe3.0Single3.5125.6
Plano-ConvexLZ-1-10-ET310600 / 940025.4254.0ZnSe3.0Single3.2252.7
Plano-ConvexLZ-1-12.5-ET4.810600 / 940025.4317.5ZnSe4.8Single5.0315.4
Plano-ConvexLZ-1-15-ET4.810600 / 940025.4381.0ZnSe4.8Single5.0378.9
Plano-ConvexLZ-1.5-2.5-ET7.410600 / 940027.963.5ZnSe7.4Single8.560.0
Plano-ConvexLZ-1.5-3.5-ET310600 / 940027.988.9ZnSe3.0Single3.887.3
Plano-ConvexLZ-1.1-5-ET310600 / 940027.9127.0ZnSe3.0Single3.5125.6
Plano-ConvexLZ-1.1-127-ET4.110600 / 940027.9127.0ZnSe4.1Single4.6125.9
Plano-ConvexLZ-1.1-7.5-ET410600 / 940027.9190.5ZnSe4.0Single4.3188.7
Plano-ConvexLZ-1.5-3.75-ET310600 / 940038.195.3ZnSe3.0Single4.494.7
Plano-ConvexLZ-1.5-5-ET410600 / 940038.1127.0ZnSe4.0Single5.0124.9
Plano-ConvexLZ-1.5-5-ET4.110600 / 940038.1127.0ZnSe4.1Single5.1125.8
Plano-ConvexLZ-1.5-5-ET7.610600 / 940038.1127.0ZnSe7.6Single8.6124.9
Plano-ConvexLZ-1.5-5.13-ET7.610600 / 940038.1130.3ZnSe7.6Single8.6128.2
Plano-ConvexLZ-1.5-5.2-ET7.110600 / 940038.1132.1ZnSe7.1Single8.1130.2
Plano-ConvexLZ-1.5-7.5-ET410600 / 940038.1190.5ZnSe4.0Single4.7188.6
Plano-ConvexLZ-1.5-7.5-ET7.610600 / 940038.1190.5ZnSe7.6Single8.3188.5
Plano-ConvexLZ-1.5-7.53-ET7.610600 / 940038.1191.3ZnSe7.6Single8.3189.3
Plano-ConvexLZ-1.5-7.72-ET7.110600 / 940038.1196.2ZnSe7.1Single7.8194.3
Plano-ConvexLZ-1.5-15-ET810600 / 940038.1381.0ZnSe8.0Single8.3377.5
Plano-ConvexLZ-2-5-ET810600 / 940050.8127.0ZnSe8.0Single9.0123.3
Plano-ConvexLZ-2-130.6-ET7.910600 / 940050.8130.6ZnSe7.9Single9.7128.3
Plano-ConvexLZ-2-7.5-ET810600 / 940050.8190.5ZnSe8.0Single8.7186.9
Plano-ConvexLZ-2-8.75-ET7.810600 / 940050.8223.5ZnSe7.8Single8.8219.8
Plano-ConvexLZ-2-10-ET7.910600 / 940050.8254.0ZnSe7.9Single8.8250.3
Plano-ConvexLZ-2.5-8.75-ET9.710600 / 940063.5223.5ZnSe9.7Single10.7219.0
Plano-ConvexLZ-2.5-10-ET9.910600 / 940063.5254.0ZnSe9.9Single10.8249.5
Positive MeniscusLZM-0.6-2-ET210600 / 940015.250.8ZnSe2.0Single2.449.2
Positive MeniscusLZM-0.75-1.5-ET210600 / 940019.138.1ZnSe2.0Single2.936.7
Positive MeniscusLZM-0.75-2-ET210600 / 940019.150.8ZnSe2.0Single2.749.0
Positive MeniscusLZM-0.75-2.5-ET210600 / 940019.163.5ZnSe2.0Single2.561.8
Positive MeniscusLZM-0.75-3-ET210600 / 940019.176.2ZnSe2.0Single2.574.6
Positive MeniscusLZM-0.75-3.5-ET210600 / 940019.188.9ZnSe2.0Single2.486.6
Positive MeniscusLZM-0.75-5-ET310600 / 940019.1127.0ZnSe3.0Single3.3124.9
Positive MeniscusLZM-1-2-ET310600 / 940025.450.8ZnSe3.0Single4.248.1
Positive MeniscusLZM-1-2.5-ET210600 / 940025.463.5ZnSe2.0Single2.961.7
Positive MeniscusLZM-1-3-ET210600 / 940025.476.2ZnSe2.0Single2.876.6
Positive MeniscusLZM-1-3.75-ET310600 / 940025.496.5ZnSe3.0Single3.697.4
Positive MeniscusLZM-1-4-ET310600 / 940025.4101.6ZnSe3.0Single3.6102.5
Positive MeniscusLZM-1-5-ET2.510600 / 940025.4127.0ZnSe2.5Single3.0125.1
Positive MeniscusLZM-1-5-ET310600 / 940025.4127.0ZnSe3.0Single3.5127.8
Positive MeniscusLZM-1-6-ET310600 / 940025.4152.4ZnSe3.0Single3.4150.2
Positive MeniscusLZM-1-7.5-ET310600 / 940025.4190.5ZnSe3.0Single3.3188.4
Positive MeniscusLZM-1-8-ET310600 / 940025.4203.2ZnSe3.0Single3.3206.7
Positive MeniscusLZM-1.1-1.5-ET210600 / 940027.938.1ZnSe2.0Single3.935.6
Positive MeniscusLZM-1.1-2.5-ET310600 / 940027.963.5ZnSe3.0Single4.160.8
Positive MeniscusLZM-1.1-3-ET310600 / 940027.976.2ZnSe3.0Single3.973.3
Positive MeniscusLZM-1.1-3.5-ET310600 / 940027.988.9ZnSe3.0Single3.888.0
Positive MeniscusLZM-1.1-3.75-ET310600 / 940027.995.2ZnSe3.0Single3.792.1
Positive MeniscusLZM-1.1-5-ET2.710600 / 940027.9127.0ZnSe2.7Single3.3124.9
Positive MeniscusLZM-1.1-5-ET610600 / 940027.9127.0ZnSe6.0Single6.6122.7
Positive MeniscusLZM-1.1-7.5-ET610600 / 940027.9190.5ZnSe6.0Single6.4186.3
Positive MeniscusLZM-1.5-2.5-ET310600 / 940038.163.5ZnSe3.0Single5.160.2
Positive MeniscusLZM-1.5-3-ET310600 / 940038.176.2ZnSe3.0Single4.772.8
Positive MeniscusLZM-1.5-3.75-ET610600 / 940038.195.3ZnSe6.0Single7.491.7
Positive MeniscusLZM-1.5-3.75-ET7.410600 / 940038.195.3ZnSe7.4Single8.789.6
Positive MeniscusLZM-1.5-3.75-ET8.910600 / 940038.195.3ZnSe8.9Single10.288.6
Positive MeniscusLZM-1.5-4-ET310600 / 940038.1101.6ZnSe3.0Single4.398.8
Positive MeniscusLZM-1.5-5-ET2.410600 / 940038.1127.0ZnSe2.4Single3.4124.8
Positive MeniscusLZM-1.5-5-ET310600 / 940038.1127.0ZnSe3.0Single4.0124.4
Positive MeniscusLZM-1.5-7.5-ET310600 / 940038.1190.5ZnSe3.0Single3.7188.2
Positive MeniscusLZM-1.5-9-ET7.410600 / 940038.1228.6ZnSe7.4Single8.0223.4
Positive MeniscusLZM-1.5-9.85-ET7.410600 / 940038.1250.2ZnSe7.4Single7.9245.0
Positive MeniscusLZM-1.5-10-ET910600 / 940038.1254.0ZnSe9.0Single9.5247.7
Positive MeniscusLZM-1.57-5.12-ET7.410600 / 940040.0130.0ZnSe7.4Single8.5124.5
Positive MeniscusLZM-1.97-4.52-ET910600 / 940050.0115.0ZnSe9.0Single10.9107.9
Positive MeniscusLZM-1.97-4.53-ET910600 / 940050.0115.1ZnSe9.0Single10.9108.0
Positive MeniscusLZM-1.97-6.69-ET910600 / 940050.0170.0ZnSe9.0Single10.3163.3
Positive MeniscusLZM-1.97-6.7-ET910600 / 940050.0170.2ZnSe9.0Single10.3163.5
Positive MeniscusLZM-1.97-6.89-ET910600 / 940050.0175.0ZnSe9.0Single10.3168.3
Positive MeniscusLZM-1.97-6.9-ET910600 / 940050.0175.3ZnSe9.0Single10.3168.6
Positive MeniscusLZM-1.97-9.84-ET910600 / 940050.0250.0ZnSe9.0Single9.9243.5
Positive MeniscusLZM-1.97-9.85-ET910600 / 940050.0250.2ZnSe9.0Single9.9243.7
Positive MeniscusLZM-2-3.75-ET9.610600 / 940050.896.5ZnSe9.6Single12.089.7
Positive MeniscusLZM-2-5-ET810600 / 940050.8127.0ZnSe8.0Single11.3115.8
Positive MeniscusLZM-2-150-ET310600 / 940050.8150.0ZnSe3.0Single4.6147.0
Positive MeniscusLZM-2-7.5-ET3.510600 / 940050.8190.5ZnSe3.5Single4.7187.4
Positive MeniscusLZM-2-10-ET9.610600 / 940050.8254.0ZnSe9.6Single10.5247.1
Positive MeniscusLZM-2-12.5-ET9.6510600 / 940050.8317.5ZnSe9.7Single10.4310.7
Positive MeniscusLZM-2-700-ET310600 / 940050.8700.0ZnSe3.0Single3.5697.6
Positive MeniscusLZM-2.5-7.5-ET1110600 / 940063.5190.5ZnSe11.0Single12.9182.1
Plano-ConcaveLZ-12.5+0.75-ET210600 / 940012.5-19.0ZnSe2.1Single1.4-19.6
Plano-ConcaveLZ-12.5+0.75-ET3.310600 / 940012.5-19.0ZnSe3.3Single2.6-20.1
Plano-ConcaveLZ-12.5+1-ET2.310600 / 940012.5-25.4ZnSe2.3Single1.8-26.1
Plano-ConcaveLZ-0.5+14.4-ET310600 / 940012.7-14.4ZnSe3.0Single2.0-15.2
Plano-ConcaveLZ-0.5+32.08-ET2.210600 / 940012.7-32.1ZnSe2.2Single1.8-32.8
Plano-ConcaveLZ-0.5+1.5-ET310600 / 940012.7-38.1ZnSe3.0Single2.6-39.2
Plano-ConcaveLZ-15+0.75-ET3.110600 / 940015.0-19.0ZnSe3.1Single2.0-19.8
Plano-ConcaveLZ-15+25-ET3.310600 / 940015.0-25.0ZnSe3.3Single2.5-26.0
Plano-ConcaveLZ-0.75+1-ET310600 / 940019.1-25.4ZnSe3.0Single1.7-26.1
Plano-ConcaveLZ-0.75+30-ET310600 / 940019.1-30.0ZnSe3.0Single1.9-30.8
Plano-ConcaveLZ-0.75+1.5-ET310600 / 940019.1-38.1ZnSe3.0Single2.1-39.0
Plano-ConcaveLZ-0.75+2-ET310600 / 940019.1-50.8ZnSe3.0Single2.4-51.8
Plano-ConcaveLZ-20+712-ET310600 / 940020.0-712.0ZnSe3.0Single3.0-713.2
Plano-ConcaveLZ-25+37.46-ET3.310600 / 940025.0-37.4ZnSe3.3Single1.8-38.1
Plano-ConcaveLZ-25+1.5-ET410600 / 940025.0-38.1ZnSe4.0Single2.5-39.2
Plano-ConcaveLZ-25+56-ET3.610600 / 940025.0-56.0ZnSe3.6Single2.6-57.1
Plano-ConcaveLZ-1+2.5-ET310600 / 940025.4-63.5ZnSe3.0Single2.1-64.4

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