Near Infrared (NIR) Lighting
PSI are highly experienced in producing advanced, highly efficient and long lasting, reliable NIR lighting for biometric and machine vision applications.

Our lighting is suitable for high power eye-safe flash photography. The use of NIR wavelengths allows for use of high intensity lighting in applications where human operators are able to freely work within the same space without eye-safety, epilepsy or rotating/moving machinery safety concerns

Our lighting is designed to work with NIR wavelength camera technology to produce images that are ambient light immune. This means noticeably clear and highly detailed images can be captured independent of ambient light conditions, such as low light or direct sunlight. Our illumination and camera technology can account for the environment to give a detailed image of the subject, adjusting to give accurate image exposure levels.

NIR lighting Options

We configure our NIR lighting to suit the application it is being used within, we have various hardware options as highlighted below:
Dimensional Lighting
Our dimensional lighting can be used to illuminate critical dimensional edges to aid automated analysis, our lighting can be implemented into advance systems to aid automated inspection and acceptance/rejection. Ideal for machine learning applications.
Wide Angle Lighting
Our wide angle lighting, is designed to produce even NIR illumination over a large surface area to produce a detailed image for surface/subject analysis. Ideal for numerous high accuracy applications, such as area analysis, surface measurement and defect detection and biometric analysis, such as accurate facial recognition
Strip Lighting
Our NIR strip lighting can be used to illuminate a specific analysis area, alongside our projection technology a line can be generated that is ideal for accurate 3D analysis, height measurement and surface defect analysis such as bulge or hole analysis. This light is a source for eye safe line generation, no need for lasers. 

Standard Features

We offer a number of features with our lighting technology, all of our lights contain the below abilities to increase usability:

Communications and Signal Synchronisation

The 12pin connector facilitates power, RS485 communications and synchronization
signals, enabling the easy integration of PSI lighting solutions into systems of varying complexity.

Brightness and Lighting Intensity Control

Each lighting module has 12bit adjustable current setting capability allowing for 4096 different brightness settings. The current can be rapidly adjusted either using RS485 communications or a dedicated 2 pin clock and data to choose from 15 programmable pre-sets. This enables changes of lighting intensity on a frame by frame basis.

Temperature Monitoring and Control

Built in temperature monitoring and pulse width modulation (PWM) fan control, enables enhanced active cooling in demanding applications without the need for additional control and monitoring equipment.

Unique Device Identification and Configuration

Contains a unique device ID allowing each light to be identified. Non-Volatile Memory (NVM) enables
the saving of the module configurations.

Voltage Monitoring and Adjustment

PSI lighting modules have built-in monitoring and voltage adjustment, to keep the lighting as efficient as possible and while also being reactive to the effects of component aging.

Robust, long-life components

Designed to be used within a variety of environments, the lighting is robust and proven, operating 24/7 within heavy industrial environments. Light components have been selected for reliability, robustness and long life operation. 

Perception Sensors and Instrumentation Ltd

A leader in bespoke biometric hardware and machine vision solutions