Biconvex Lens
Biconvex lenses have positive focal lengths and can focus collimated beams. Both surfaces are convex spheres with equal radii of curvature. When object and image distances are equal or nearly equal, they significantly reduce spherical aberration while improving coma and distortion. Aberrations are minimized for conjugate ratios between 5:1 and 1:5.
Specification Snapshot
Dimensions
φ5mm~400mm
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Overview
Biconvex lenses have positive focal lengths and can focus collimated beams. Both surfaces are convex spheres with equal radii of curvature. When object and image distances are equal or nearly equal, they significantly reduce spherical aberration while improving coma and distortion. Aberrations are minimized for conjugate ratios between 5:1 and 1:5.
Specifications
| Parameter | Value |
|---|---|
| Material | Optical Glass K9, Quartz, Fused Silica, BK7, Calcium Fluoride |
| Dimensions | φ5mm~400mm |
| Dimensional Tolerance | -0.02~0.1mm |
| Center Thickness Tolerance | -0.02~0.1mm |
| Radius of Curvature Tolerance | <0.001mm |
| Surface Finish | 10/5~60/40 |
| Surface Figure | λ/8~λ/2 |
| Clear Aperture | >90% |
| Edge Bevel | <0.3mm*45° |
| Coating | Antireflection-Coated |
Applications
Imaging Systems: Camera Lenses, Microscope Objectives, Telescope Components; Focusing Devices: Laser Collimation, Light-Concentrating Systems (Such as Projectors)
Datasheet
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Supplier Information
Shenzhen Dingxinsheng Optics Technology Co., Ltd., established in 2008, specializes in R&D, production and sales of precision optical lenses. In 2019, it expanded a second factory in Jiujiang, Jiangxi, covering 8,000 sqm. Equipped with advanced devices like German Satisloh aspherical machines and US Zygo interferometers. Main products include aspherical lenses, spherical lenses, laser optics, mirrors, beam splitters, prisms, filters, lenses, field lenses, focusing lenses, collimating lenses, and custom lens design. Adopting US and German technology, it has developed unique cold processing and coating techniques, gaining wide market recognition.
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