This bi-convex lens features a symmetric converging design with a positive focal length, ideal for focusing point sources or collimating beams; choose a broadband AR coated lens option to reduce surface reflection and improve throughput.
Material :
H-K9L (CDGM), including Schott, Hoya, Ohara, Crystal, and Corning Fused SilicasDesign wavelength :
632.8 nmFocal Length Tolerance :
±1%Dimension Tolerance :
+0.0 / −0.1 mmCenter Wavelength Tolerance :
±0.1 mmSurface Accuracy :
λ/4 @ 632.8 nmSurface Quality :
40-20Centration :
<3'Clear Aperture :
> 90%Coating :
multilayer AR (optional bands)
Product Description
Designed as a high precision bi-convex lens for general imaging and beam shaping, it balances strong on-axis focusing with easy alignment. The symmetric geometry is tolerant to incidence direction, making it a practical positive focal length lens in multi-element optical paths.
Performance Advantages
High throughput performance helps improve overall system SNR.
40-20 scratch-dig with a λ/4 surface figure suppresses stray light for cleaner, low-scatter imaging.
A ±1% focal length tolerance and <3′ centration enable repeatable alignment and production integration.
Standard H-K9L (CDGM) material with optional optical glasses or fused silica supports laser focusing/collimation and imaging/inspection applications.
Application Range
As a laser collimation focusing lens and general converging optic, it is suitable for laser beam collimation/focusing, re-focusing after beam expansion, imaging or projection modules, inspection/sensing optics, and lab or educational setups.
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