发明名称 EYE POINT MEASURING DEVICE AND PROGRESSIVE POWER LENS CHECKING DEVICE
摘要 PROBLEM TO BE SOLVED: To quickly measure an eye point by measuring the eye point by displaying a pattern for alignment on a transmission type display face arranged in the vicinity of a glass frame and moving the pattern in order to align the transmission area of the pattern with a visual line position confirmed by an examinee. SOLUTION: An examinee wears a spectacle frame F he devices and a liquid crystal panel 1 is fixed to the front side of the spectacle frame F by mounting members 3R and 31. By pressing the start switch of a switch section 13, an eye point is measured in accordance with a measurement program by a control section incorporated in a control section 10. Namely, a pattern of a light transmission hole 40 about 3 mm square is displayed on a right liquid crystal display 1R, the examinee looks at a distance in accordance with voice guidance. By operating a lever 12 or a switch section 13 so that a distant indicator arranged previously may be seen in the center of the light transmission hole 40, the light transmission hole 40 is moved. The central coordinate of the light transmission hole 40 is determined to be the visual line position of the right eye.
申请公布号 JP2000287931(A) 申请公布日期 2000.10.17
申请号 JP19990103309 申请日期 1999.04.09
申请人 NIDEK CO LTD 发明人 HAYASHI AKIHIRO
分类号 A61B3/11;A61B3/113;(IPC1-7):A61B3/113 主分类号 A61B3/11
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