OptoSplit II Application Note

Now available to read here!


Introducing our latest image splitter

MultiSplit – Four-way emission image splitter


Technical Papers & Articles


FuraLED Light Source

340nm / 380nm ratiometric LED illuminator for Fura-2


Light-sheet solutions

Minimal photodamage or bleaching


Fluorescence Microscopy – DESIGN TO INTEGRATION.

Cairn Research is a European scientific instruments manufacturer based in Kent, UK.


Fluorescence Illumination

With over 30 years of experience in building light sources for the life sciences we offer a range of solutions for fluorescence, transmitted light and OptoGenetics.

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OptoSplit II

Fluorescence Detection

With an emphasis on optical performance, stability, usability, and flexibility Cairn are proud to offer a broad range of multichannel emission and detection products.

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Integrated Imaging Systems

Complimentary to our wide range of in-house microscopy and macroscopy products we also have an experienced team of scientists offering turnkey systems and solutions.

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Custom Microscopy Design

We have a dedicated design and R&D team with an onsite engineering machine workshop and offsite contracted engineers available with over 20 years of experience.

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Working in partnership with

Proud to Supply


Roper iLas

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Nikon Eclipse Ti2

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DaVinci 2K NDR CMOS Camera


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X-Light V2Tp Confocal Imager

X-Light V2Tp Confocal Imager

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Latest News


| Cairn News, Uncategorised | No Comments

Jez and Gareth have just been demonstrating the multidepth imaging potentialities of our new fourway “Multisplit” image splitter to a potential customer in Oxford, and we’re pleased to say that it came through with flying colours!  Except of course that…

The Cairn OptoSpin – More than just a filterwheel!

| Cairn News, Presidents Log | No Comments

At Cairn we’ve been involved with filterwheels for rather longer than we care to remember, but it has nevertheless taken us a while to develop our latest offering, in the form of the Optospin. That’s because there was a fair…

New barn finished at last!

| Cairn News, News | No Comments

Better Late Than Never! At last, we have the Building Regulations Completion Certificate for our new building!  Yes, here is a copy of this all-important piece of paper, dated September 10, 2018, relating to plans submitted a full five years…

Neuroscience 2018

| Cairn News, News, Uncategorised | No Comments

We will be at Neuroscience 2018 We are looking forward to attending Neuroscience 2018 shortly in San Diego.  We will be at booth 821 with our friends and partners 89North & Chroma Technology.  On display will be our recently launched…