公开(公告)号：US11567004B2

公开(公告)日：2023-01-31

申请号：US17284879

申请日：2019-10-22

Applicant: ENTPE

Inventor： Raphael Labayrade ,  Anna Andreani

IPC: G01N21/55 ,  G01J1/02 ,  G01J1/08 ,  G01J3/28

Abstract: The optical device for measuring at least one of reflected light (BRDF) and transmitted light (BTDF) from a sample, in all spherical directions of space around the sample, for each spherical direction of incident light includes a light source, and a goniophotometer configured to measure at least one of: directions of the incident light in spherical coordinates, and directions of the reflected light in spherical coordinates. The device further includes a dispersive screen, and a multi-sensor imaging device. The goniophotometer includes a first articulated arm supporting the light source; and a second articulated arm supporting the sample or a sample holder.