Custom Optical Filters for UV, VIS & IR Systems
Virgo HTE builds on long-standing know-how in interference filters, dichroic coatings, laser filters, high-reflectivity mirrors and customized spectral treatments for demanding optical systems.
Interference filters are designed by controlling multilayer optical coatings to obtain specific transmission, reflection, blocking and spectral-shaping behavior.
Technology
Interference filters for precise spectral control
Interference optical filters use thin-film multilayer coatings to control how light is transmitted, reflected or blocked. They are used when an optical system requires a specific wavelength band, high blocking outside the passband, high reflection, thermal stability or customized spectral performance.
Custom spectral solutions
The historical know-how behind Virgo HTE includes optical filters and coatings for ultraviolet, visible and infrared applications, including filters developed according to customer requirements.
Typical requirements include temperature resistance, humidity stability, abrasion resistance, spectral precision and compatibility with demanding optical, industrial or scientific environments.
Spectral selection
Transmission or reflection of selected wavelength ranges with controlled blocking.
High reflection
Dielectric or metallic mirrors for high-performance optical and measurement systems.
VIS / IR systems
Optical windows, sensor filters and coatings for visible and infrared applications.
Demanding use
Coatings designed for robust environments, cleaning, temperature variation and stability.
Examples
Examples of interference optical filters
The following examples show typical filter categories that can be engineered, optimized or specified for industrial optics, laser systems, scientific instruments, medical devices and optoelectronic applications.
Narrowband Bandpass Filters
Filters designed to transmit a defined wavelength band while blocking neighboring spectral regions. Used in sensing, fluorescence, measurement and laser systems.
Multiband Filters
Filters with two or more transmission bands, allowing multiple spectral channels to be combined within a single optical element or sensor system.
Dichroic Filters & Mirrors
Optical coatings that reflect one spectral range while transmitting another, commonly used in beam splitting, color separation and multi-channel imaging.
Notch Filters
Filters that suppress a narrow wavelength region while transmitting the surrounding spectral ranges, useful for Raman spectroscopy and laser rejection.
Laser Clean-up Filters
Narrow filters used to clean unwanted spectral components from a laser source, improving signal quality and reducing optical noise in measurement setups.
Raman Spectroscopy Filters
High-performance filters for Raman systems, designed to isolate weak spectral signals while suppressing excitation wavelength components.
Fluorescence Microscopy Filters
Excitation, emission and dichroic filter sets for fluorescence imaging systems, medical diagnostics and high-contrast optical analysis.
Chirped Mirrors
Dispersive mirrors designed to manage chromatic dispersion in ultrafast laser systems, femtosecond applications and high-precision optical setups.
Rugate Filters
Advanced filters with a continuously varying refractive index profile, suitable for tailored spectral response and complex optical filter functions.
Applications
Typical applications
Interference filters and custom optical coatings can support a broad range of high-tech applications where spectral precision, durability and optical performance are essential.
Spectroscopy & optical measurement
Filters and mirrors for spectrometers, optical measurement systems, astronomy instruments and laboratory equipment.
Laser protection and beam conditioning
Clean-up filters, blocking filters, laser mirrors and optical coatings for pulsed lasers, femtosecond lasers and specialized laser setups.
Diagnostics, IPL and dermatology
Optical filters for IPL systems, skin treatment devices, diagnostic equipment and medical laser protection applications.
Sensors, cameras and surveillance optics
Filters, windows and coatings for visible and infrared cameras, thermal imaging, sensor protection and long-range optoelectronic systems.
Space and aviation components
Coatings for demanding environmental conditions, satellite instruments, optical protection windows and mission-related optical components.
Custom optical systems
Application-specific optical filters and coatings for inspection, colorimetry, machine vision, industrial sensors and custom engineering projects.
Need a custom interference filter or optical coating?
Virgo HTE can support specification, feasibility evaluation and custom engineering for optical filters, coatings, mirrors and high-performance optical components.