企业案例库 产品 非接触眼压计-英文.ppt

CANON.　Inc Medical Export Dept. 地球集团有限公司 設計意念 快速 操作簡易 檢測數據可靠性高 人性化和安全 Speedy 縮短檢測時間 世界首創，輕按一指，全自動追踪及檢測The first experience in the world! Complete full auto measurement. Quick measurement for both eyes only pressing the start button. Easy operation for everybody Reliable screening test Safety Extremely soft air puff Soft and gentle air puff of all non-contact tonometers. Operating position Any position, sitting in a chair or standing in front, even sideway. Motorised Chinrest Operator does not need to stretch the arm for positioning Comfortable for the examinee SET Mode Principle of measurement Near infrared beams which are emitted from the measurement IRED are dispersed at the curved surface of the cornea are detected by measurement PD. Ejection of air results in a specific deformation of the cornea, and this changes the radiating angle of the beams, which are then collected by measurement sensor elements. The pressure in the chamber at this time is measured by an internal pressure sensor, and then this pressure value is converted to an intraocular pressure value by the MPU. Auto alignment Wide ranging, High-accuracy and High-speed by 3-stage eye tracking technique. 1. Detection of pupil position : Rough alignment for X-Y direction. 2. Detection of light reflected from cornea exposed to illumination IRED : Rough alignment for Z direction. 　 3. Detection of refracted image from the cornea : 3D fine alignment 1. Detection of pupil position 2. Detection of light reflected from cornea exposed to illumination IRED 3. Detection of reflected image from the cornea * * 2003.02.24 Centralized controls ?Int/Ext fixation target ?Measurement mode ?Set mode…..etc Visual confirmation of errors Display of “IOP Warning”.　 Diagnose ocular hypertension without delay by displaying a warning message whenever high pressure is detected. Customer can set own preferences. Extensive possibilities. Measurement PD Measurement diaphragm Infrared beam H