Standard Photometer

Photometer is a photometric quantity detector; it consists of a silicon photodiode, an aperture, and in some cases a diffuser and V(λ) correction filter. This V(λ) correction filter must follow the total spectral responsivity of the photometer (photodiode, filter, diffuser) to the V(λ) function. Again the photometer head does not need to have cosine correction. … Read more

Integrating Sphere Photometer

The geometry for a typical integrating sphere is shown below, Constructional Details of Integrating Sphere The integrating sphere is equipped with– A photometer head A baffle An auxiliary lamp A lamp socket Integrating Sphere Size The size of the baffle is determined by the size of the test lamp. The sphere size should be appropriate … Read more