公开(公告)号：ZA9103690B

公开(公告)日：1992-02-26

申请号：ZA9103690

申请日：1991-05-15

Applicant: ZEISS CARL

Inventor： HOHBERG GERHARD ,  GERHARD HOHBERG ,  MATTHES AXEL ,  AXEL MATTHES ,  SCHLEMMER HARRY ,  HARRY SCHLEMMER

IPC: G01N21/59 ,  G01N

CPC classification number: G01N21/59 ,  G01N21/87 ,  G01N2201/06126 ,  G01N2201/065

公开(公告)号：ZA913690B

公开(公告)日：1992-02-26

申请号：ZA913690

申请日：1991-05-15

Applicant: ZEISS CARL

Inventor： HOHBERG GERHARD ,  GERHARD HOHBERG ,  MATTHES AXEL ,  AXEL MATTHES ,  SCHLEMMER HARRY ,  HARRY SCHLEMMER

IPC: G01N21/59 ,  G01N

Abstract: Apparatus for measuring the absorption of transparent samples (11, 31, 41) (e.g. precious stones) consisting of a radiation source (13, 43), a device (14, 44, 54) (e.g. Ulbricht sphere) for multiple reflection without a privileged direction, and a photometric measuring device (15d, 46) (e.g. diode row spectrometer), the sample (11, 31, 41) being arranged in the device (14, 44, 54) for multiple reflection without a privileged direction, or between it and the photometric measuring device (15d, 46), and being diffusely illuminated. … …