Reflectance measurement integrating sphere UPB-150-ARTA

transmittance

Photometry to determine optical material properties Optical material properties is a general term used to refer to the reflection, transmission and absorption properties of a material. Photometry hereby refers to a measurement process through which material properties as well as photometric measurands are determined using a photometer. Integrating sphere photometer The integrating sphere is very common in both broadband and narrow-band photometric applications for diffuse sample illumination and detection of the reflected and transmitted light proportions. UPB-150-ARTA precision integrating sphere With the 150mm diameter, the UPB-150-ART provides a good compromise in terms of precision of the sphere function and level of the measurement signal. Its production from a solid aluminum block ensures a very precise alignment of the measurement ports to each other. Another characteristic property are the thin circumferential knife-edges of the measurement ports that enable a high acceptance angle for diffuse light. Multifunctional integrating sphere The UPB-150-ARTA is ideal for multiple functions thanks to its five knife-edged measurement ports that can be used either while open or closed and the sample holder for cuvettes and sample glasses. The possible measurement setups include: •Absorption •Photoluminescence •Organic electroluminescence •0°/d reflection •8°/d reflection with and without glamour •0°/d directed and diffuse transmission •Measurements substitution correction •Two-ray measurement setups •Luminous flux measurements