Hoya Colour Glass Filters
Precision glass filters for spectral shaping and attenuation
Absorptive Optical Filters
Hoya colour glass filters are absorptive optical filters designed to selectively transmit or block specific wavelength regions. They are widely used in imaging, sensing, and scientific instruments for colour correction, spectral shaping, and stray-light reduction.
Is this material right for your application?
Use When:
Avoid When:
Consider Alternatives:
Absorptive filtering is required
Precise wavelength blocking or transmission is needed
Imaging or sensing systems require colour correction
Long-term spectral stability is important
Simple, robust filtering solutions are preferred
Sharp cut-on or cut-off edges are required
Tunable or interference filtering is needed
Extremely narrow bandwidths are required
Schott Colour Glass Filters – wider standard range and availability
Interference filters – sharper spectral cut-offs
Thin-film coatings – custom spectral control
Key Properties
Optical
Absorptive spectral filtering
Smooth transmission cut-offs
Mechanical
Good surface durability
Environmental
Stable glass composition
Suitable for long-term use
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Frequently asked questions about Barium Fluoride specifications and use-cases
FAQ
Q1. What are Hoya colour glass filters used for?
Spectral filtering in imaging and measurement systems.
Q2. What wavelength ranges are available?
UV, visible, and near-IR depending on filter type.
Q3. Are Hoya filters optical-grade?
Yes.
Q4. What are alternatives to Hoya filters?
Schott colour glass filters.
Wide catalogue of filter types
Stable spectral performance
Can be AR-coated