Linear Variable Filters

Hard dielectric coating using proprietary Quadrode™ technology
Custom-designed LVFs with OD6+ blocking, >95% peak transmission, and 5–10 nm/mm wavelength dispersion rates across 355–1600 nm.
Two rectangular linear variable filter shown at an angle, displaying a continuous rainbow gradient from violet through blue, green, yellow, and red across its length, illustrating the spatially varying wavelength transmission.

Key Features

Up to OD6+ blocking
Fully custom designs
Made to order
Hard dielectric thin film coatings
Durable Quadrode™ plasma PVD technology
5–10 nm per mm dispersion rate
Up to 95% average transmission
355–1600 nm wavelength range
Spectral transmission chart for a linear variable short pass filter, showing ten overlaid curves measured at 5 mm position intervals from 5 to 50 mm. Each curve maintains approximately 97% transmission before dropping steeply to zero, with cutoff wavelengths shifting progressively from approximately 460 nm at 5 mm to 740 nm at 50 mm, demonstrating the filter's continuous spatial tunability.

Technical Specifications

SPECIFICATION
PARAMETER
Center Wavelength (CWL)
355–1600 nm standard; custom available
Blocking
Up to OD6+
Transmission
Up to 95% average
Coating Type
Hard dielectric coatings utilizing Quadrode™ plasma PVD technology
Substrate Materials
Borofloat, Fused Silica, BK7, Custom
Surface Quality
60-40 scratch-dig
Configuration
Rectangle, 50 x 10mm typical
Custom CWL / Sizing
Available on request
Environmental
Please contact for full environmental specifications

Request a Quote

Contact our team for pricing, custom specifications, and lead times.