Precision Glass & Optics has announced the customisation of two thin film optical components for a high-field magnetic resonance imaging (MRI) accessory developed by Avotec.
The Real Eye Nano is a visual presentation and eye-tracking system constructed entirely of glass and plastic, with a reduced size that makes it ideal for operation in confined MRI spaces. Functional magnetic resonance imaging (fMRI) is a leading tool in the effort to understand how the human brain functions and a primary target of fMRI research is cognitive disorders associated with increasing age. Optical systems that provide both eye-tracking and visual stimulation are, and will continue to be, a key component in fMRI research.
PG&O developed the dielectric cold mirror and cylindrical prism mirror for the Real Eye Nano. The system allows the MRI patient to view a unique visual demonstration concurrently while the patient’s eyes are illuminated with near-infrared (980nm) light supplied by an IR light-emitting diode (LED) / fused fibre cable/ fibre bundle.