FS-250A LED Ganzfelds

The FS-250A LED Ganzfeld is a programmable LED luminance source. It consists of a 200mm diameter sphere internally coated with a high-reflectance diffuse white paint; and illumination is provided by internal arrays of white LEDs. The operator can program a continuous background luminance and also transient pulse stimulus patterns. The FS-250A can be used as an LED luminance standard and also as a powerful R&D tool for studying the fundamentals of vision.