Specialised Photometric Equipment

We offer a range of specialised and customised photometric equipment for various applications.

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.

Tunnel Entrance Photometers

The TEP-2.0 Tunnel Entrance Photometer is a measurement system essential to the energy efficient lighting of tunnel portals (entrances and exits). It is installed in front of the portal, normally at one safe stopping sight distance and produces an output current proportional to the luminance in the central field-of-view around the tunnel portal. This signal can be used to switch banks of luminaires on or off, thereby keeping the lighting of the tunnel at an optimum compared with the surrounding luminance and saving energy.

Optical Rails

We offer a range of customised optical rail systems for varying applications including:

Luxmeter and photometer head calibrations;
UV Radiometer (UVA & UVC) calibrations;
Creating luminous intensity standards;

The systems can be detector-based or source-based or a combination of both. The rail system can be manual or automated (motorised).

Transient Signal Measurement

This equipment is for measuring the luminous intensity and chromaticity as a function of time. It is used for profiling signals such as flashing beacons, maritime warning lamps, arrow boards, rotating beacons, etc. as well as pyrotechnic flares, modulated LEDs, camera flashes, etc. The measured data can then be Fourier transformed for frequency analysis, or other statistical functions like calculation of effective intensity, luminous energy, etc.