OPTICAL COMPONENTS

Optical Filters

Spectral control solutions for optical systems.

Explore filter types or discuss custom wavelength, transmission, and coating requirements.

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01 / OVERVIEW

Optical filters for wavelength control

Optical filters are wavelength-selective optical components designed to modify the spectral characteristics of light by transmitting, attenuating, or blocking specific wavelength ranges. Through carefully engineered optical coatings and substrate selection, filters can achieve precise control over passband, cutoff wavelength, transmission efficiency, and blocking performance for different optical systems.

Strahl Optics provides custom filter solutions for imaging, laser, spectroscopy, sensing, and illumination applications. Available solutions include bandpass filters, longpass filters, shortpass filters, and dichroic filters, with options for optical glass filters and other substrate materials. Application-specific thin-film coating technologies are used to achieve the required spectral response.

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02 / CONFIGURATION

Configure around your requirements

The table below summarizes common options for optical filters.

Specification Options
Substrates Optical glass, fused silica, sapphire
Sizes (mm) 5 – 200
Sizes Tolerance (mm) ±0.1
Use Wavelength UV, Visible, NIR, IR
Surface Quality 60/40 – 20/10
Optical density OD2, OD3, OD4, OD5, OD6

Specifications represent typical available options. Final specifications are confirmed for each project.

Application areas

Fluorescence Microscopy
Industrial Camera
Automotive Lidar Sensor
Industrial Barcode Scanner
03 / PRODUCTS

Optical filter types

Select a filter type based on your wavelength range and spectral control requirements.

04 / CUSTOM OPTICS

Need custom optical filters for your system?

Strahl Optics supports custom optical filters based on your wavelength filtering requirements. Optical filter can be tailored in substrate materials, filter configurations, dimensions, spectral performance and coating options to achieve the required transmission characteristics.

Discuss custom optical filters
Wavelength selectionSpectral performanceCoating design
05 / SELECTION GUIDE

How to choose optical filters

OPTICS RESOURCES

What wavelengths need to be transmitted or blocked? What spectral performance does your system require?

06 / CONTACT

Let’s discuss your optical filters.

Tell us about your application. We’ll review suitable configurations, recommend practical options, and confirm any additional details needed to prepare a quotation for your project.

To help us review your request, please share the following if available:

  • Drawing or product specifications
  • Spectral range and filter requirements
  • Required quantity
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