For calibration of the recent developded spectral radiation remote sensor

we have built a newly integrating sphere source which introduced laser outside. This integrating sphere source not only meet the demand of calibration souce for radiance responsivity calibration

but also can scan the spectral responsivity accurately. We have introduced singel-wavelength laser to research the basic radiation characteristics of the integrating sphere source

which include radiance instability

plane uniformity and Lambertian. The result show that this newly integrating sphere source is highly stable and uniform.