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 fNIRS neuroimaging ecosystem


The Gowerlabs LUMO ecosystem is a wearable, scalable and high-density functional near-infrared (fNIRS) brain imaging technology that combines unprecedented functional imaging capability with outstanding experimental flexibility.


LUMO ecosystem

The heart of the LUMO ecosystem is the tile: a hexagonal sensor module that houses three sources and four detectors of near-infrared light. By enabling measurements both within and across tiles, up to 48 fNIRS channels can be obtained using just two LUMO tiles.

By connecting multiple tiles into our specially designed headgear, users can instantly create high-density fNIRS arrays that enable 3D functional brain imaging at a resolution comparable to that of fMRI, and all in a wearable, easy-to-use and subject-friendly package.


What is LUMO?

LUMO is a functional near-infrared spectroscopy (fNIRS) ecosystem. The three elements are the tile, cap and hub.

LUMO provides continuous, high-density multi-distance sampling, reducing false positives with its inherent short-separation channels. Lightweight and wearable, LUMO requires no optical fibres and is suitable for all ages and environments. LUMO’s flexible configuration allows you to instantly switch between different caps and array configurations, and the unique scalable design allows you to upgrade as your research needs change.

Watch our video to learn more, and contact us for a quote.




A huge step forward in optical neuroimaging technology

Just two tiles can provide as many as 48 fNIRS channels with source-detector separations ranging from 10 to 50 mm.


LUMO’s ground-breaking modular design consists of independent hexagonal sensor tiles that can be easily connected into any cap at any location to form a high-density fNIRS or diffuse optical tomography (DOT) array.

Key features of the tile

  • Each tile has 3 dual-wavelength sources and 4 detectors

  • Features anti light-piping design

  • High quality optical filters to maximise ambient light rejection

  • Intra-tile measurements at 10 mm and 20 mm separation, cross-tile measurements up to 50 mm

  • Ergonomic features making cap connection simple and fast

  • Designed to work with 3D positioning systems

  • Lightweight - less than 6 g




Flexible, stretchable, ergonomic design

Each LUMO cap is made from flexible, high-quality neoprene and is designed to ensure maximum subject comfort.


Each cap contains a set of docks, into which any tile can be inserted, making array configuration simple and fast. The docks are connected together using an innovative flexible printed circuit design that allows the cap to stretch and accommodate different head shapes.


Bespoke caps with custom array design are available in sizes ranging from newborn infant to adult.


Removable light guides make contact with the scalp and can be selected to suit different hair types and populations.

Key features of the cap

  • Made from flexible, high quality neoprene

  • Circumferences range from 34 to 62 cm

  • Adjustable chin strap to align correctly to the head

  • 10-10 positioning markers

  • Velcro cable strain relief

  • Customisable dock layouts

  • Removable light guides




Compact and user friendly

LUMO can operate in either cable or wireless modes enabling complete experimental flexibility.



When operating in cabled mode, each cap is connected to the hub by a flexible, light-weight cable. The hub then connects via USB to the control laptop. Each hub can be connected to up to three LUMO caps simultaneously to allow multi-subject hyperscanning.



Enabling fully wireless operation of your LUMO system, the wireless hub is designed to be worn on the upper arm, or tucked into a pocket. It is perfectly suited to wireless neuroimaging applications including studies of movement, of naturalistic stimuli, and of infants in an everyday environment.





Why choose LUMO

fNIRS has been gaining traction among neuroscientists, doctors and psychologists as a promising brain imaging technology. However, low image resolution, uneven brain sensitivity, and the need to apply bulky optical fibres to the scalp of every subject has limited the application of fNIRS technology.

LUMO changes all this.


LUMO: beyond fNIRS 

By allowing measurement channels to be formed from a wide range of source-detector distances across multiple tiles, LUMO provides consistent, even coverage of the brain. With LUMO you can be confident that you will not miss an area of the cortex because of sparse, uneven sampling.


High-density sampling has been extensively demonstrated to provide more reliable measurements of brain function than traditional fNIRS approaches. Systems that only measure at one distance (e.g. 30 mm) are highly susceptible to signal contamination arising from the scalp.

LUMO provides multiple short-separation channels for every source and detector, which allows the scalp signal to be detected, isolated and removed. Only with high-density sampling can users be confident that the signal they record is truly from the brain.

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Left: a typical optical fibre array consisting of 10 source and 10 detector locations arranged in a grid design to provide 30 fNIRS channels all with a separation of 30 mm.

Right: the 12-tile LUMO prefrontal array provides more than 400 fNIRS channels with separations in the range 10 to 40 mm. LUMO provides an average cortical sensitivity 100x that of traditional fNIRS.