Photic Stimulator (LED) with Software

This Photic Stimulator is an LED-based visual flash stimulator for EEG studies. This LED Photic Stimulator combines the brightness of a Xenon flash with the ease of use of an LED device. It is smaller, more lightweight, and more energy-efficient compared to other photic stimulators currently on the market by utilizing state-of-the-art LED technology.

This Photic Stimulator generates no heat and is, therefore, safer than other traditional photic stimulators. The silent LED technology doesn’t create a noise artifact and is less distracting to the researcher, technologist, physician, and patient. The unit can be easily attached to tables, medical mounts, or arms for convenient control.

The Photic Stimulator is controlled through software that is included in the photic stimulator package. It is a USB-driven device and hence there's no need for any additional power supplies, making it easy to setup and portable too.

The Photic Stimulator comes as a package which includes:

• Photic Stimulator (LED-based flash)
• USB connection cable for power and control
• Photic Arm + Clamp
• Control software to control the photic stimulator from a computer

It is compatible with a wide range of EEG and other physiology measurement systems. To send latency-free trigger markers to such devices, please select the appropriate interface cable. The photic stimulator can also be used as a standalone device without send triggers to an external device (select Generic - No Trigger).

Additional color filter packs and trigger cables are available upon request (Contact Us).

Features

• Small, light and self-contained (only 1 box). This makes it very much easier to mount the unit on an arm for easy positioning
• Efficient. Due to the inherent efficiency of modern LEDs, the unit can utilise low-voltage DC as a power source
• No heat. Due to the efficiency, little internal heat is generated. This allows the unit to operate continuously and without the use of a fan.
• No noise. This has very significant physiological advantages in that there is no noise-induced artefact in the EEG.
• No Safety Hazards. No heat and low power consumption mean much simpler regulatory approval.

Technical Specifications

• Light Source: Single high-intensity Xenon LED
• Output Aperture: 100 mm diameter circular output, with optional front filters (Contact Us)
• Light Output: 900 lumens maximum output; 13,000 lux peak at 1 foot (30 cm)
• Flash Rate: 1 – 60Hz continuous, or single manual flash
• Flash Intensity: Variable flash intensity in 7 steps
• Flash Duration: Variable flash duration 1 – 10ms and auto duty cycle
• Interface Connector:
  • Generic physiology amplifier systems - trigger marker output either through DIN 1.5mm touch-proof (TP), 3.5mm jack, or BNC connector
  • Dantec Keypoint Focus
  • Nihon Kohden
  • VIASYS Healthcare NicoletOne
  • Xltek (Natus) Trex
  • Xltek (Natus) Brain Monito
  • Xltek (Natus) EEG32U
• Weight: 350g (photic stimulator only)
• Size: 130 x 130mm
• Mounting: M8 thread to take spigot and block or handle
• Optional Accessories: Colored filters available upon request
• Software: Windows compatible Photic Stim Control software included
• Packaging: 1 x Photic Stimulator (LED-based flash) + 1 x USB connection cable for power and control + Photic Arm + Clamp + Interface cables

Photic Inteface Cables

When ordering the Photic Stimulator, we offer a wide range of interface cables to send trigger markers to your EEG or physiology measurement device. It can also be used as a standalone device. Please select from the follow interface cables to ensure compatibility:

• Generic - DIN 1.5mm touch-proof (TP)
• Generic - 3.5mm Jack
• Generic - Single BNC connector
• Generic - Dual BNC connector
• Dantec Keypoint Focus
• Nihon Kohden
• VIASYS Healthcare NicoletOne
• Xltek (Natus) Trex
• Xltek (Natus) Brain Monito
• Xltek (Natus) EEG32U

Application Note

1. Connect the power cable: connect the RJ-45 connector to the photic stimulator and the USB cable to your computer
2. (optional) Connect the inteface cable to your EEG or physiology measurement system.
3. Start the Photic Stim Software on your Windows computer.
4. Set the stimulation mode and rate for controlled stimulation.
5. Click either the "Single Flash (>)" or "Go/Stop (>>)" for single or continuous photic stimulation.