eo_logo
  • Country/Region
  • cart   
 

Optical Filter Coatings


  • Wavelength Ranges from 193nm to 10.6µm

  • 960 Standard Filter Coating Designs

  • Custom Design, Manufacturing, and Testing Offered

  • Laser-Line Designs Available for Ultrafast and Other Laser Systems

  • Filters for Medical Devices, Semiconductor Inspection, Machine Vision, and More

Overview

Precision optical filters block, transmit, and reflect selected wavelengths in your system. Whether you need to clean up a laser beam, increase contrast in a machine vision system, or separate fluorescence from emission wavelengths, Edmund Optics® has an appropriate filter solution.

Edmund Optics® is a leading producer of optical filter coatings including fluorescence, dichroic, narrow bandpass, multi-bandpass, notch, edge, and neutral density filters. From small quantities for prototyping to large quantities for production, our engineers can create a solution for you. Our experience in a wide variety of applications will help guide you to finding the best filters for your application. What can we make for you?

Capabilities

Our expert coating designers and technicians are skilled in manipulating coating parameters to meet demanding specification requirements.

  DOWNLOAD TABLE AS PDF

Description Filters for Fluorescence / Life Science Applications Hard Coated Bandpass Filters High-Precision Edge Filters
Types of Filters Fluorescence Bandpass Filters Fluorescence Dichroic Filters Narrow Bandpass Filters Medium Bandpass Filters Broad Bandpass Filters Shortpass Filters Longpass Filters Dichroic Filters
Typical Specifications Transmission ≥ 95% Transmission ≥ 95% Transmission ≥ 95%
Blocking ≥ OD6.0 Reflection ≥ 98% Blocking ≥ OD4.0 Blocking ≥ OD4.0 Reflection ≥ 98%
Bandwidths between 10 - 80nm Transmitted Wavefront Distortion (TWD) ≤ λ/4 Bandwidths between 5 and 20nm Bandwidths between 25 and 50nm Bandwidths ≥ 50nm Slope Factor ≤1% Transmitted Wavefront Distortion (TWD) ≤ λ/4
Environmental Durability per MIL-STD-810F Environmental Durability per MIL-STD-810F Environmental Durability per MIL-STD-810F
Physical Durability per MIL-C-48497A Physical Durability per MIL-C-48497A Physical Durability per MIL-C-48497A
Comments Standard and custom designs for common fluorophores; integratable into fluorescence microscope cubes, medical and diagnostic instruments, and PCR devices Standard and custom designs for common LED and laser light sources, fluorescent proteins, and elemental and chemical emission lines; integratable into spectroscopic instruments, machine vision equipment, and medical and diagnostic devices Standard and custom cut wavelengths between 300nm and 10µm; ideal for spectral sorting and isolation, beam combining, and Raman detection; designs can be optimized for sharp transitions, deep rejection, broad transmission, and low GDD
Description Optical Notch Filters Neutral Density (ND) Filters Machine Vision Filters
Types of Filters Laser Line Notch Filters Multi-Line Notch Filters Reflective ND Filters Non-Reflective ND Filters Absorptive ND Filters Bandpass Filters Band Reject Filters Polarizing Filters
Typical Specifications Blocking ≥ OD6.0 Optical Densities between 0.1 and 5.0 Common Machine Vision Filter Threads
Narrow FHWM 2, 3, and 4 Wavelength Designs UV, VIS, NIR, LWIR, and Multi-Spectral Ranges Reflection ≤ 2% All SCHOTT and Hoya Glasses Available Transmission ≥ 90% Blocking ≥ OD4.0s ≥9,000:1 Extinction Ratio
Broad Transmission Ranges Transmitted Wavefront Distortion (TWD) ≤ 1λ Low cost or high precision substrates VIS and NIR Designs Variety of AR Coating Options Common LED Center Wavelengths UV and/or NIR Cut Linear or Circular Polarization
Environmental Durability per MIL-STD-810F Surface Quality 40-20 Surface Quality 60-40 Tightly controlled thickness, or optical density Environmental Durability per MIL-STD-810F Rotating Polarizers for Transmission Control
Physical Durability per MIL-C-48497A Transmitted Wavefront Distortion (TWD) ≤ λ/4 Low cost or high precision substrates Melt certs available Physical Durability per MIL-C-48497A High Contrast, Transmission, or Temperature Options
Comments Standard and custom designs for deep rejection of common Nd:YAG, Yb:YAG, HeNe, Argon Ion, Fiber, Ti:Sapphire, and diode lasers Standard and custom optical densities for even attenuation across a variety of spectral regions; standard regions include 400 - 700nm, 700 - 1100nm, 250 - 700nm, 190 - 1700nm, and 2.0 - 14.0µm Standard and custom designs for common LEDs, laser wavelengths, and light sources used in machine vision applications; mounted in filter rings with threads available from M22.5 x 0.5 to M105.5 x 1.0, including common M25.5 x 0.5 and M30.5 x 0.5 options

Laser Filters

Need filters for your laser application? Edmund Optics produces both standard and custom laser filters optimized for laser-induced damage threshold (LIDT) for high powers and group delay dispersion (GDD) for ultrafast lasers.

Fluorophores and Optical Filters
for Fluorescence Microscopy

Learn More  

Manufacturing Equipment

Edmund Optics® has state-of-the-art optical coating facilities in the US, Japan, and Singapore with capabilities including:

  • E-Beam Deposition
  • Ion-Assisted Deposition
  • Ion Beam Sputtering
  • Magnetron Sputtering
  • Thermal Evaporation
  • Hard Coatings for Stringent Environments and Durability
  • Automated Ultrasonic Cleaning

Metrology

Edmund Optics® performs a range of testing to ensure the highest performance from our stock and custom optical coatings. Coating metrology equipment:

Technical Resources

Videos

Informative corporate or instructional videos ranging from simple tips to application-based demonstrations of product advantages.

EO Global Manufacturing Facilities

EO Global Manufacturing Facilities

Metrology at Edmund Optics: Measuring as a Key Component of Manufacturing

Metrology at Edmund Optics: Measuring as a Key Component of Manufacturing

Application Notes

Technical information and application examples including theoretical explanations, equations, graphical illustrations, and much more.

Optical Filters
Read  

Optical Filter Orientation
Read  

An Introduction to Optical Coatings
Read  

Understanding Neutral Density Filters
Read  

Fluorophores and Optical Filters for Fluorescence Microscopy
Read  

Trending Topics

The future depends on optics through technological and application advancements. Edmund Optics® continues to embrace the future by providing information on trending products and technologies.

The Future of Optical Filters
Learn More  

Ultra-Thin Longpass and Shortpass Filters
Learn More  

Types of Filters

Bandpass Filters

Optical bandpass filters are used to transmit a desired portion of the spectrum while rejecting all other wavelengths outside of the passband.

Figure 1 (right): Bandpass filters transmit specifically desired wavelengths or wavebands while rejecting all other wavelengths outside the passband.

View Product

Bandpass Filters

Shortpass Filters

Optical shortpass edge filters are used to transmit wavelengths shorter than a specific cut-off wavelength.

Figure 2 (right): Shortpass filters, also known as shortpass egde filters, transmit wavelengths shorter than a specific cut-off wavelength.

View Product

Shortpass Filters

Longpass Filters

Optical longpass edge filters are designed to transmit wavelengths greater than the specific cut-on wavelength of the filter.

Figure 3 (right): Longpass filters, also known as longpass egde filters, transmit wavelengths longer than a specific cut-on wavelength.

View Product

Longpass Filters

Notch Filters

Notch filters selectively reject a spectrum of light wile transmitting all other wavelengths.

Figure 4 (right): Transmission profile of a notch filter

View Product

Notch Filters

Dichroic Filters

Dichroic filters reflect unwanted wavelengths while transmitting the desired portion of the spectrum. This effect is desired for some applications because light can be separated by wavelength into two paths.

Figure 5 (right): Dichroic filters, also known as dichroic mirrors, reflect unwanted wavelengths and transmit desired portions of the spectrum. This effect is useful for applications where both the reflected and transmitted light will be used at a further point in a system.

View Product

Dichroic Filters

Neutral Density (ND)

Neutral density filters are designed to reduce transmission evenly across a spectrum of light by absorbing or reflecting the portion of light not being transmitted.

Figure 6 (right): Transmission profile of a neutral density filter

View Product

Neutral Density (ND)

Polarizing

Polarizers, or polarizing filters, preferentially transmit one polarization of light over the other.

Figure 7 (right): Transmission profile of a single polarizing filter and two parallel and crossed polarizing filters

View Product

Polarizing

Colored Glass & Absorptive

Colored glass and absorptive filters function by using the material's inherent absorption properties.

Figure 8 (right): Colored glass filters consist of glass substrates of a given absorption and thickness

View Product

Polarizing

How can we help meet your
budget, performance, and schedule requirements?

×