Visible 300 - 700nm Short Pass Filters

A short-pass filter designed for the visible range of 300 to 700 nm is an optical filter that transmits light with shorter wavelengths, whilst blocking or attenuating longer wavelengths above the cut off point. More on the uses and applications of visible short pass filters as well case study examples of filters we have manufactured can be found below.

We design and manufacture custom visible short pass filters between 300 nanometres to 700 nanometres to any custom specification. We hold a wide range of stock substrates such as Glass, Sapphire, Quartz, Calcium Fluoride and more. We are able to offer a complete design and manufacture package in house 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

550 nm Short Pass Filter

UV Transmitter, Visible Blocking Filter

Applications

Fluorescence Microscopy:

Short-pass filters are used in fluorescence microscopy to selectively transmit the shorter excitation wavelengths while blocking the longer emission wavelengths, allowing for the visualisation of specific fluorophores.

Spectroscopy:

In spectroscopy applications, short-pass filters can be used to selectively transmit the shorter wavelengths of light for analysis, while blocking background noise or unwanted longer wavelengths.

Colourimetry:

Short-pass filters are utilised in colorimetry to separate different colours of light and measure their intensity accurately, particularly in colour measurement and calibration systems.

Machine Vision:

In machine vision systems, short-pass filters can be used to enhance image quality by filtering out ambient light or specific wavelengths that may interfere with the object recognition process.

Environmental monitoring:

Short-pass filters are employed in environmental monitoring applications to selectively transmit light from specific sources or molecules for analysis, such as in air quality monitoring or water quality assessment.