• Lumetronics

Integrating Spheres

Lumetron IP Series Integrating Spheres are precision photometric equipment for the research laboratory to evaluate the luminous flux of light sources and luminaires with a single measurement and also for comparative analysis. The equipment is made as per the requirement of several Indian and International Standards Specifications. The sphere is constructed of fibreglass reinforced plastic with an embedded steel frame for strength and rigidity. It has two hemispherical halves, one of which is supported on a rigid stand. The other half is hinged and can be opened for internal access. A magnetic clasp ensures light-proof closure and easy opening. The sphere is made with an internal diameter of either 500 mm, 1,000 mm or 2,000 mm. One window is provided at the centre of each hemisphere for observation and mounting of the photocell. Adjustable mounting for light source is provided on the fixed hemisphere. A baffle to screen direct light from reaching the photocell window is provided. An auxiliary lamp socket with screen is provided on the movable hemisphere for correction and attenuation. A specially designed photocurrent meter is available as an option. The meter consists of a precision photodetector with an amplifier and an LCD readout mounted in a compact case. The sphere can also be supplied with a complete electrical metering panel. A complete set of precision engineered Kelvin holders are available in various lamp cap configurations. Other options also include a precision digital lux meter and DC power supply. Additionally, a complete range of test/measuring equipment and calibration services are available.