Biconvex Lens with Outer Diameter 6.99mm
A biconvex lens has two convex spherical surfaces and positive focal length, with symmetric equal-radius or asymmetric unequal-radius designs. It efficiently converges parallel beams, forms clear real images or acts as a main focusing element. Compared with plano-convex lenses, it gives better imaging and spherical-aberration/coma correction at equal object/image conjugates, meeting medium/high-precision needs without additional correction lenses. A 6.99mm diameter is a small-to-medium precision size with improved clamping stability and clear area. CA is generally ≥6.29mm, stated as over 90% of diameter. A standard chamfer <0.15mm×45° prevents chipping/scratching during clamping, cleaning and assembly. Compact applications include industrial machine-vision lenses, miniature laser-ranging modules, medical endoscopes and portable spectrometers requiring space efficiency and imaging accuracy.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Lens Types | Biconvex Lens |
| Diameter Range | 0.5mm-50mm |
| Outer Diameter Tolerance | +0/-0.01mm |
| Thickness Tolerance (Thickness Deviation) | ±0.01mm |
| Surface Finish | 10/5~80/50 |
| Eccentricity Error | 1'~5’ |
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