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| Lens |
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Lens can converge or diverge the transmission beam and form image of the object, Which is widely used in various applications.
Union Optic can provide all kinds of spherical and cylindrical lenses, usually we can offer:
Spherical: plano-convex, plano-concave, double-convex, double-concave, meniscus, dome lens, rod lens, ball lens, half ball |
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Cylindrical: plano-convex, plano-concave
Mixture: one side spherical, the other side cylindrical! We can offer!
Assembly: doublet, triplet, customer designed special lens kit |
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Usually lenses are not only used in visible band, but also in IR band and UV band, that means special material should be used. Now, Union Optic can offer lenses made of various materials such as CaF2, MgF2, Sapphire, Silicon, Germanium, ZnSe and etc. Union Optic can also provide various coatings for lenses upon your request. | |
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| Spherical Lens |
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| Specifications |
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| Dimension Tolerance |
+0/-0.2mm |
| Thickness Tolerance |
±0.2mm |
| Radius Tolerance |
±0.5% |
| Surface Quality |
60/40 scratch and dig |
| Power(fringe@633nm) |
3 |
| Irregularity(fringe@633nm) |
0.5 |
| Centration |
<3 arc minutes |
| Focal Length Tolerance |
±2% |
| Clear Aperture |
>90% |
| Chamfer |
Protective <0.5mmx45deg | |
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| Union Optic provides some stocked standard lenses for your selection, including BK7 series and fused silica series. And also we make custom lens for you! Call us for your special request. |
| Cylindrical Lens |
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| Specifications |
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| Material |
BK7, Fused Silica |
| Design Wavelength |
632.8nm |
| Dimension Tolerance |
+0/-0.2mm |
| Thickness Tolerance |
±0.2mm |
| Surface Quality |
60/40 scratch and dig |
| Power(fringe@633nm) |
3 |
| Irregularity(fringe@633nm) |
0.5 |
| Centration |
<3 arc minutes |
| Focal Length Tolerance |
±2% |
| Clear Aperture |
>90% |
| Chamfer |
Protective <0.5mmx45deg | |
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| Achromatic Lens |
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| Specifications |
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| Material |
Optical Glasses |
| Design Wavelength |
480, 546.1, 643.8nm |
| Dimension Tolerance |
+0/-0.2mm |
| Thickness Tolerance |
±0.2mm |
| Surface Quality |
60/40 scratch and dig |
| Power(fringe@633nm) |
3 |
| Irregularity(fringe@633nm) |
0.5 |
| Centration |
<3 arc minutes |
| Focal Length Tolerance |
±2% |
| Clear Aperture |
>90% |
| Chamfer |
Protective <0.5mmx45deg |
| Coating |
Single layer MgF2 coating @550nm | |
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