LABSPHERE, represented by Warsash Scientific , has released a tunable, off-the shelf IR uniform source system for the calibration of imaging systems and electronic cameras in the VIS/NIR - MIR range.
The Labsphere USS-400-IG IR uniform source system, with an InfraGold diffuse reflectance coated integrating sphere optimised for the longer wavelengths, is suitable for calibrating and testing IR imaging sensors, IR based camera systems and IR targeting systems, thermal imagers, photometers and radiometers.
The uniform source integrating sphere collects the radiation from the source and integrates the radiation to create a uniform field of light within the sphere. Integrating spheres offer researchers a wide wavelength range of radiance, and a constant colour temperature range at every level of luminance.
The sphere’s exit port aperture provides nearly perfect Lambertian radiation that is diffusely emitted from the exit port plane and serves as a virtual surface of uniform luminance or radiance when viewed through an optical system.
The plane of the exit port exhibits uniform illuminance or irradiance for objects or devices placed against the port and serves as the calibration source aperture.
With the USS-400-IG, technicians can accurately and easily calibrate sensors and imaging systems with a variable output source which provides uniform irradiance in the 600nm to 5µm range.
The spectral content can be modified without the breakdown and realignment of traditional optical benches.