K9 Standard-Precision Plane Window front product view on a dark background
Angled view of K9 Standard-Precision Plane Window for sensor protection, imaging and laser enclosures

SO-W01 SERIES

K9 Standard-Precision Plane Window

SO-W01 standard-precision plane windows are parallel K9 optical glass plates for protecting sensors, detectors and enclosed optical paths without adding optical power.

K9 Optical Glass
$17.65
$17.65

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Product Overview

Specify K9 Standard-Precision Plane Window by aperture, surface accuracy and mounting

The series spans compact metric and inch-reference diameters, with uncoated, VIS, NIR and SWIR broadband antireflection options. It is intended for general laboratory and OEM instruments where dependable visible-to-near-infrared transmission matters more than laser-grade wavefront control.

Select diameter and thickness for the mount, then match the coating to the actual operating band. For interferometry, tightly focused beams or wavefront-critical laser paths, use a high-precision or laser-grade series.

Select a Model

models

Engineering Guidance

Choose the window around transmitted wavefront and environment

Performance considerations

The series spans compact metric and inch-reference diameters, with uncoated, VIS, NIR and SWIR broadband antireflection options. It is intended for general laboratory and OEM instruments where dependable visible-to-near-infrared transmission matters more than laser-grade wavefront control.

Selection and mounting

Select diameter and thickness for the mount, then match the coating to the actual operating band. For interferometry, tightly focused beams or wavefront-critical laser paths, use a high-precision or laser-grade series.

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

How Optical Windows Protect a System Without Adding Optical Power

Understand how a plane-parallel window protects an optical path while controlling wavefront and beam deviation.
CANAL GLASS SHOP
TECHNICAL RESOURCE
Material Selection · 6 min

Choosing K9, Fused Silica or Sapphire for Optical Windows

Compare spectral range, thermal stability, hardness and cost for common optical-window substrates.
CANAL GLASS SHOP
TECHNICAL RESOURCE
Selection Guide · 8 min

Reading Flatness, Parallelism and Surface Quality

Connect window tolerances to transmitted wavefront, wedge, scattering and mechanical integration.