45mm Diameter Laser Biconvex Cemented Lens
Cemented lenses, also called achromatic lenses, consist of two cemented singlets and greatly improve imaging with polychromatic white light compared with singlets. Two elements of different materials are bonded to correct glass dispersion and eliminate chromatic aberration. They are widely used in polychromatic illumination and imaging to improve cost effectiveness. Their optical functions include focusing, collimation, and imaging. Lens forms include plano-convex, plano-concave, biconvex, biconcave, meniscus, and cemented designs. High-quality materials include BK7, K9, quartz, germanium, silicon, zinc selenide, and magnesium fluoride. Antireflection coatings are generally required to reduce surface reflections and optical energy loss and produce clearer images.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Size Range | 6-400mm |
| Dimensional Tolerance | -0.01mm |
| Center Thickness Tolerance | -0.02mm |
| Radius of Curvature Tolerance | Less than 0.001mm |
| Surface Finish | 10/5、20/10、40/20、60/40 |
| Surface Figure | ru/8~ru/2 |
| Clear Aperture | > 99% |
| Edge Bevel | < 0.3mm X 45。 |
| Coating | Dielectric Coating |
Datasheet
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