公开(公告)号：IT9020522A1

公开(公告)日：1991-12-04

申请号：IT2052290

申请日：1990-06-04

Applicant: ESSILOR INT

Inventor： BERTRAND PATRICK

IPC: G01M11/00 ,  G01B11/255 ,  G01M11/02 ,  G02B20060101 ,  G02B27/44 ,  G02B27/52

公开(公告)号：GB2233448A

公开(公告)日：1991-01-09

申请号：GB9011543

申请日：1990-05-23

Applicant: ESSILOR INT

Inventor： BERTRAND PATRICK

IPC: G01M11/00 ,  G01M11/02

Abstract: The optics detect the phase along an optical beam path. A beam radiator (13) provides the light source (14). A working station (15) accepts the optical system (10) to be tested. A receiver (17) intercepts the observed image upstream of a grating (16). A data processor (18) evaluates this image by detecting the phase. A matching element (13) is placed between the working station and the grating. The processor and a calibrator use a beam tracking program and take into account both the theoretical and practical abberations appearing at the convergent matching element (13) for correction.

公开(公告)号：FR2647913A1

公开(公告)日：1990-12-07

申请号：FR8907385

申请日：1989-06-05

Applicant: ESSILOR INT

Inventor： BERTRAND PATRICK

IPC: G01M11/00 ,  G01B11/255 ,  G01M11/02 ,  G02B27/44 ,  G02B27/52

Abstract: A beam radiator (13) provides the light source (14). A receiving sation (15) accepts the optical system (10) to be tested. A receiver (17) intercepts the observed image upstream of the grating (16). - A separator (26) between the light source and receiving station forms a semi-reflective surface (27) on the axis (A) of the optical beam path. The receiver (17) is at the side of the separator. A data processor (18) and calibrator use a beam tracking program and take into account both the theoretical and practical abberations arising from the separator.