Color and Absorptive Filters

Color and Absorptive Filters are available in longpass, bandpass, and neutral density options. Color and Absorptive Filters are ideal for use as environmental displays or for other machine vision or industrial applications. These filters utilize the material’s inherent absorption or transmission properties, rather than interference effects from thin film coatings. By controlling the thickness of the material, precise filtering across large bandwidths can be achieved. Edmund Optics’ Color and Absorptive Filters are available in glass, plastic, or film substrates. Glass filters offer high durability, while plastic or film filters are cost-sensitive alternatives.

Colored Glass Bandpass Filters

UV, VIS, IR Ranges
Circular and Square Sizes Available

New
C-Mount Absorptive Neutral Density (ND) Filters

Pre-mounted in Engraved C-Mount Housings
Simplify Integration into Optical Systems
Optical Densities from 0.15 to 2.5
Also Available Unmounted

Longpass Glass Color Filters

UV, VIS and IR Pass Ranges
VIS Can Be Used for Color Bandpass

Schott KG Heat Absorbing Glass

Absorbs IR
Also Useful as a Shortpass Filter

Absorptive Neutral Density (ND) Filters

Attenuates Visible Light Via Absorption, Rather than Reflection
Multiple Filters Can be Stacked for Increased Blocking
Optical Densities from 0.1 to 4.0 are Available
Also Available Pre-mounted in C-Mount Housings

Additive and Subtractive Dichroic Color Filters

High Saturation Dichroic Type
Matrix of Sizes and Sets
Precision Glass Substrate

TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More

45° Reflective Dichroic Color Filters

Reflects Stated Color While Transmitting Remaining Visible Spectrum
Ideal for Color Separation Applications
Precision BK7 Substrates

Lumilass Fluorescent Glass Filters

Wide Range of UV Excitation
High Sensitivity and Durability
Minimum Sensitivity of ~1 μW/cm² for All Emissions

New
Ultra-Thin Longpass Filters

Ultra-Thin, Flexible Substrate
Sharp Cut-On Wavelength Designs
Extruded Thin Film, Insensitive to Scratches

New
Ultra-Thin Shortpass Filters

Flexible Design to Conform to Curved Surfaces
Scratch Insensitive, Ultra-thin Polymer Construction
>80% Average Transmission

New
Ultra-Thin Notch Filters

Approximately 250µm Thickness
Flexible Structure and Scratch Resistant
Extruded Thin Film with Sharp Spectral Profiles

Optical Cast Plastic Color Filters

Resistant to All Types of Chemicals and Solvents (Acetone, Acids, Alkali and Alcohols)
Excellent Thermal Resistance
Easily Drilled with High Speed Carbide Bits for Mounting