Visible 300 - 700nm Wide Bandpass Filters
Visible wide bandpass filters are optical filters designed to transmit a wide range of wavelengths while blocking out unwanted wavelengths. They are often a combination of a long pass filter and a short pass filter which can be positioned to create a bandpass filter of any width. More details on the specific uses and applications of visible wide bandpass filters can be seen in the case studies below.
We design and manufacture custom visible wide bandpass filters between 300 and 700 nm to any custom specification. We hold a wide range of stock substrates such as Glass, Sapphire, Quartz, Calcium Fluoride and more. We also have onsite dicing, so we are able to design, manufacture and dice filters to their finished size with lead times as little as 2 weeks.
Please contact us to discuss your specific requirements.

Case Studies

450 - 700nm Wide Band Pass Filter

630 - 670nm Wide Band Pass Filter

450 - 490nm Wide Band Pass Filter
Applications

Spectroscopy:
Wide band pass filters are used in spectrophotometers and other spectroscopic instruments to isolate specific ranges of wavelengths for analysis and measurement purposes.

Photography and Imaging:
Wide band pass filters are used in cameras and imaging systems to selectively filter out unwanted wavelengths of light and enhance the quality of images captured within the visible spectrum.

Fluorescence microscopy:
In fluorescence microscopy, wide band pass filters are used to selectively transmit the fluorescence emitted by fluorophores within the visible spectrum while blocking other unwanted wavelengths.

Medical Applications:
In medical applications, wide band pass filters are used in devices for light therapy treatments that require specific ranges of wavelengths within the visible spectrum.

Optical communications:
Wide band pass filters are used in optical communications systems to filter and separate different channels of light signals within the visible spectrum.

Colourimetry:
Wide band pass filters are used in colour measurement instruments to accurately measure and analyse colours within the visible spectrum for various applications including quality control and colour matching.