发明名称 Ophthalmic measurement apparatus
摘要 An ophthalmic measurement apparatus capable of outputting correction data (objective values) for a patient's eye as approximate as possible to subjective values includes an optical system for projecting a measurement target onto a fundus and detecting an image of the target reflected therefrom using a photoelectric element so as to obtain measurement data on eye refractive power distribution or wavefront aberration, an optical system for photographing an anterior-segment including a pupil using an image-pickup element, a device which detects a size of a pupil area by image processing, and a device which obtains a spherical power, an astigmatic power, and an astigmatic axial angle based on the data within a given area smaller than the pupil area when the detected size is larger than a reference size, and obtains the three values based on the data within the pupil area when the detected size is smaller than the reference size.
申请公布号 US7559651(B2) 申请公布日期 2009.07.14
申请号 US20070979325 申请日期 2007.11.01
申请人 NIDEK CO., LTD. 发明人 SHIMIZU KAZUNARI;FUJIEDA MASANAO
分类号 A61B3/14;A61B3/10 主分类号 A61B3/14
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