ISO 9001 - AS 9100 - ITAR Standard & Custom Optical Filters and Coatings



A range of filters are available for Astronomy.

Filters are an accessory used in astronomy with telescopes and/or instruments such as a CCD camera, to improve the observation of celestial objects and/or to facilitate the measurement of the number of photons of selected wavelengths of light. Filters of varying wavelength width or bandpass can be used.

A range of filter choices are available depending on the type of observation: for solar, lunar, planetary, stellar and nebula observations. Filter properties and types will change depending on the specific wavelengths or regions of the electromagnetic spectrum observed. Filters are usually made of glass, acrylic or other similar transparent material and then coated as required. Filters can be placed in different locations of the optical path but typically just before the eyepiece lens or detector.

Astronomy Filter Capabilities

Advantages for Our Image Quality Filters and Dichroics

    • Short lead times

    • Constructed to reduce internal reflection

    • Two-stage polish for superior transmitted wave front quality

    • High-efficiency AR coatings

    • Custom engineered solutions

    • Material traceability

    • ISO 9001:2015 and AS9100:2016 certified


See some of the amazing astronomy projects that we have been fortunate enough to be a part of: Astronomy Timeline