Spectroscopic Bandpass Filters

WISOPTIC Advantages of Optical Filters

• Plentiful options of types and sizes

• High transmission, deep blocking

• Broad transmission range

• Hard coated or custom design coated

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Product Details

Bandpass Filters are used in a variety of industries, including machine vision,factory automation, security and surveillance, license plate recognition, medical and life science, agricultural inspection, aerial imaging, motion analysis, photography and cinematography.

WISOPTIC's bandpass filters include mass collection of dielectric-coated filters, colored glass filters, neutral density filters, spatial filters, and tunable optical filter based on liquid crystal technology. Specifically speaking, e.g. crystalline material UV band pass filters, neutral density reflective type filters made from Corning 7059 glass and designed to operate at 400-2000 nm range, neutral density absorption type filters designed to operate at VIS (450-650 nm) and Schott color glass filters. Highly durable hard coatings are available for applications that require high optical densities with maximum performance.

WISOPTIC Specifications - Optical Filters

Material	N-BK7, UV fused silica, Schott color glass
Dimension Tolerance	+0/-0.25 mm
Clear Aperture	＞central 85% of dimension
Parallelism	＜1′
Surface Quality	60/40 (standard); 40/20 (precision)
Surface Flatness	λ/4~1 λ @ 632.8 nm
Angle of Incidence	0 °±5°
Coating	Hard coated or recording to customer’s request