DEVICE FOR MEASURING BIDIRECTIONAL INFRARED RADIATION BRIGHTNESS COEFFICIENT OF MATERIALS Russian patent published in 2019 - IPC G01J1/10 G01N21/55 

FIELD: measuring equipment.

SUBSTANCE: invention relates to the field of experimental bench base for measuring the reflection characteristics of materials – bidirectional brightness coefficient required when solving problems of determining fields of brightness of infrared radiation of bodies of complex shape. Device for measuring bidirectional brightness of infrared radiation of materials comprises an irradiation source and a mirror optical system for irradiating a sample on the rotary platform, a mirror optical system for collecting and focusing a reflected flux, a black screen with a sample and a radiation receiver, an irradiation source and a radiation detector with the possibility of controlling the solid angles of the irradiating and received radiation flux, respectively. Black screen with sample is installed on rotary optical table, made rotary and fixed on one axis with rotary platform of irradiation source, means of measuring spectral and spectrozonal values are placed after the system for collection and focusing of the reflected flux with installation of a beam splitter in the point of intersection of their mutually perpendicular optical axes.

EFFECT: obtaining information on spectral and spectrozonal bidirectional brightness coefficient of materials with any directed reflecting properties at different irradiation and observation angles.

1 cl, 2 dwg