Transmit & protect
Optical Window
Browse optical windows by material, geometry, coating and application.
Explore familyPrecision optics, clearly connected
The right optics.
A clearer path.
Explore optical components, understand the materials behind them, and find a starting point for your next optical system.
COMPONENT EXPLORERStart with light
TRANSMIT & PROTECTOptical Window
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- Component families
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- Material guides
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- Application pathways
- UV–IR
- Optical design topics
Component directory
Explore the building blocks of light.
Optical component families. One connected starting point for your design.
Reflect & route
Beamsplitters
Browse beamsplitters by material, shape, size and coating.
Explore family
Control & select
Optical Filters
Browse optical filters by filter type, material, size and coating.
Explore family
Reflect & route
Optical Mirrors
Browse optical mirrors by shape, material, size and coating.
Explore family
Material library
Look beyond the surface.
Understand the substrate before you specify the optic.
Optical glass
N-BK7
Visible · near IR
A familiar starting point for visible-light lenses, prisms and other general-purpose optical components.
Balanced optical properties
Amorphous silica
UV Fused Silica
UV · visible · near IR
An optical substrate to consider when ultraviolet transmission or low thermal expansion matters.
UV and thermal design
CaF₂ crystal
Calcium Fluoride
UV · visible · IR
A low-dispersion crystalline material used in selected broadband, ultraviolet and infrared optical designs.
Broadband optical design
Application pathways
What are you building?
Follow the optical task to the components and knowledge behind it.
Application pathway
Laser Systems
Connect wavelength, beam size and power conditions to focusing, steering and polarization components.
Explore application
Application pathway
Imaging & Machine Vision
Build a selection brief around field of view, working distance, sensor format and illumination.
Explore application
Application pathway
Spectroscopy
Explore components for wavelength separation, band selection and light collection in a spectrometer.
Explore applicationKnowledge center
Make the next choice with clarity.
Practical guides for better component selection.
Knowledge
How Are Optical Windows Classified?
Optical windows classify by four dimensions: wavelength, material, coating, and size/thickness. Walk them in order and a vast catalog becomes a short shortlist.
Read guideKnowledge
How Does an Optical Window Work?
How an optical window works: two parallel faces bend light in and back out, the substrate sets the band, AR coatings cut reflection loss.
Read guideKnowledge
How to Choose Optical Window Material: A Practical Guide
Choose an optical window material in four steps: wavelength range, environment, pressure load, and cost. Covers N-BK7, fused silica, sapphire, and ZnSe.
Read guideA useful starting point
Common questions, clear answers.
Where should I start when selecting an optical component?
Start with the optical function, working wavelength and beam geometry. Then review the component family, substrate, coating and mechanical constraints together.
Can I select a material from its spectral region alone?
Use the spectral region to build a shortlist. Confirm the material grade, thickness, coating and operating conditions against the actual transmission data.
What should I include in a component specification?
Include the optical task, material, dimensions, wavelength band, coating, tolerances, operating conditions and acceptance requirements.