K9 Precision Bi-Convex Lens front product view on a dark background
Angled view of K9 Precision Bi-Convex Lens for laser focusing, imaging and beam-shaping systems

SO-L23 SERIES

K9 Precision Bi-Convex Lens

SO-L23 precision bi-convex lenses are manufactured from annealed K9 optical glass and cover diameters down to miniature sizes. Their symmetric positive-power geometry is useful for compact relay systems, finite-conjugate imaging, sensor optics and focused illumination where both lens surfaces contribute to convergence.

K9 Optical Glass
$39.71
$39.71

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Product Overview

Configure K9 Precision Bi-Convex Lens around focal geometry and coating

This series should be selected by diameter, focal length and back focal length, with center and edge thickness checked carefully for miniature mounts. The listed equal-surface radius identifies the balanced bi-convex geometry for each model.

Choose this precision series when compact diameters or tighter mechanical integration are more important than the broader economy range of SO-L02.

Select a Model

models

Engineering Guidance

Choose the configuration around focal length and working wavelength

Optical behavior

This series should be selected by diameter, focal length and back focal length, with center and edge thickness checked carefully for miniature mounts. The listed equal-surface radius identifies the balanced bi-convex geometry for each model.

Selection and integration

Choose this precision series when compact diameters or tighter mechanical integration are more important than the broader economy range of SO-L02.

Need a different diameter, tolerance or coating?

Custom substrate materials, dimensions, angular tolerances and coating bands can be reviewed for prototype and production quantities.

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Technical Resources

Related engineering articles

Selection notes and practical guidance matched to this product family.

CANAL GLASS SHOP
TECHNICAL RESOURCE
Optical Fundamentals · 7 min

Understanding Focal Length, BFL and Lens Orientation

Relate effective focal length, back focal length and lens orientation to focusing and collimation performance.
CANAL GLASS SHOP
TECHNICAL RESOURCE
Material Selection · 6 min

K9 Glass, Fused Silica and Optical Material Tradeoffs

Compare transmission, thermal behavior and cost before choosing a substrate for a precision lens.
CANAL GLASS SHOP
TECHNICAL RESOURCE
Selection Guide · 8 min

Reading Radius, Center Thickness and Surface Quality

Use geometric and surface specifications to confirm optical fit, mounting depth and expected image quality.