Custom Optical Filters
Built to Your Specification
Bandpass, longpass, shortpass, dichroic, ND, and specialty optical filters
manufactured for your wavelength, size, coating, and mounting requirements.
Send your bandpass filter requirement and we’ll review a suitable custom option.
Coating designs are reviewed based on wavelength, bandwidth, transmission, blocking range, AOI, substrate, and quantity requirement.
Optical glass, fused silica, silicon, or other substrates can be prepared to the required size, thickness, and surface quality.
Dielectric thin-film coatings are deposited to achieve the required passband, edge wavelength, reflection band, blocking range, or optical density.
The coated substrate is measured before final cutting to verify transmission, blocking, edge position, or reflection performance against the target specification.
After spectral verification, coated substrates are diced or cut into round, square, rectangular, or custom-sized filters for final use.
Finished filters are checked for dimensions, surface condition, and mounting requirements. Filters can be supplied unmounted or assembled into threaded mounts, filter cubes, or other mechanical formats.
Before starting a full custom coating project, you may be able to test a near-match optical filter first to validate wavelength, bandwidth, blocking, AOI, and system performance.
Start With Your Target Spec
Coating designs are reviewed based on wavelength, bandwidth, transmission, blocking range, AOI, substrate, and quantity requirement.
Try a Near Matched Filter
When suitable, we recommend an existing filter for system testing before moving to custom production.
Move to Custom Production
If the stock filter confirms the optical direction, we can review a custom filter based on your final specification.