SO-L24 SERIES
SO-L24 K9 bi-concave lenses form an economical negative-power series for beam expansion, focal-length extension and optical training systems. The symmetric concave geometry is useful in finite-conjugate layouts and compound lens groups where divergence is required without a planar surface.
Product Overview
Select a Model
models
Engineering Guidance
Choose the configuration around focal length and working wavelength
Optical behavior
Source specifications are provided through the dimensional model data: diameter, negative focal length, center thickness, edge thickness, radius and back focal length. The material is identified as K9 optical glass for this product family.
Selection and integration
Select by the required negative focal length and beam diameter, then reserve sufficient radial and axial clearance for the thicker lens edge.
Need a different diameter, tolerance or coating?
Custom substrate materials, dimensions, angular tolerances and coating bands can be reviewed for prototype and production quantities.
Technical Resources
Related engineering articles
Selection notes and practical guidance matched to this product family.
CANAL GLASS SHOP
TECHNICAL RESOURCE
TECHNICAL RESOURCE
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
TECHNICAL RESOURCE
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
TECHNICAL RESOURCE
Reading Radius, Center Thickness and Surface Quality
Use geometric and surface specifications to confirm optical fit, mounting depth and expected image quality.
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