SO-L26 SERIES
SO-L26 K9 drum lenses provide strong positive power in a compact body with a cylindrical mounting surface. They are used in fiber launch assemblies, diode-laser collimators, compact illumination modules and optical probes where a ball lens would be harder to position reliably.
Product Overview
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Engineering Guidance
Choose the configuration around focal length and working wavelength
Optical behavior
Diameter and center thickness define the mechanical envelope; focal length and back focal length determine the source or fiber spacing. The short working distance makes axial tolerance and barrel concentricity especially important.
Selection and integration
Use the drum geometry when repeatable mechanical location is a priority in a miniature coupling assembly.
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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