公开(公告)号：JPS62238427A

公开(公告)日：1987-10-19

申请号：JP8161186

申请日：1986-04-09

Applicant: SONY CORP

Inventor： MIYAZAKI HIDEKI ,  KONDO KEIICHIRO ,  KATO HARUO ,  MURAKAMI KYOJI ,  TANAKA SEIJU ,  TAKEUCHI MASAO ,  TAKEDA SHOZO ,  KURIHARA TOMOYUKI

IPC: G01J3/50 ,  H01J9/227 ,  H01J9/42

Abstract: PURPOSE:To enhance measuring accuracy, by a method wherein a panel is provided so as to be made relatively movable to directions horizontal and vertical with respect to an ultrasonic ray source part and a sensor and the chromaticity of the same area of a fluorescent surface is measured. CONSTITUTION:A panel stage 4 moving to a plane direction in such a state that a panel 3 is placed is provided on the base stand 2 of a chromaticity measuring apparatus 1 and an ultraviolet ray source part 5 is provided in the base stand 2 below the panel 3 and a sensor 8 receiving beam 6 of ultrasonic rays transmitting through a fluorescent surface 7 is provided above the panel so as to be positioned n the extending line of the beam 6. The panel stage 4 is constituted of a stand 29 moving left and right in a Y-axis direction in a state mounting the panel 3 and a stand 30 moving to an X-axis direction (direction vertical to a drawing) while mounting the stand 29. The stands 29, 30 moves to the X-axis and Y-axis directions to make it possible to measure the arbitrary area of the fluorescent surface 7 of the panel 3. The sensor 8, the panel stage 4 and the ultraviolet ray source art 5 respectively automatically move to X-, Y- and Z- directions with respect to, for example, 300 areas to be measured of the fluorescent surface 7 to measure chromaticity and the relative brightness of each color.