2023学年完整公开课版CRK7000P验光仪

CRK-7000P

验光仪-目录-1.机械构造2.电控系统3.测量原理2验光仪的构成及用途验光仪是一种客观式验光仪器，由光学部分、CCD相机感应系统，微机控制部分和打印机等主要部分组成，是一种对人眼屈光度参数和角膜曲率参数进行客观式测量的精密仪器，适用于对被测者眼睛的球镜顶焦度、柱镜顶焦度、柱镜轴位、双眼瞳距、角膜曲率半径和角膜屈光度的客观测量。验光仪，也称“电脑验光仪”，主要构成及用途：1.机械构造–外壳3No名称No名称No名称1BASEASSY5BOARDCOVER9COVERHEADBASEBRACKETR2LCD6COVERROOF10COVERBACK3COVERSIDEL7COVERHEADBASEBRACKETL11HEADRESTASSY4OPTICALASSY8COVERROOFBRACKET12COVERSIDER41.机械构造–机身COVERBASEFRONTMOVINGBASEASSYCOVERBASEREARFIXBASEASSYLOCKSWITCHJOYSTICKPDBAR51.机械构造–机身轨道SMPSFIXINGBASEFRAMEFIXINGBASEBOTTOMCOVERPOWSERINLETASSYPACKINGLOCKHEADRESTFIXERFIXINGBASETOPCOVER61.机械构造–机身YAXISINTERFACEBOARDPANELOPTICALHEADFIXSTANDFRAMEINTERFACEBOARD71.机械构造–机身HOUSING轴承HEADGUIDE轴承YAXISPOLESTOPPER弹簧HOUSINGSUPPORT轴承STANDFRAMEBELTPULLY螺纹82.电控系统-电路模块Output12Vdc/3A5Vdc/7ACN2CN1BATTERYCN6CN13CN12CN10CN9CN14CN7CN3CN20CN17CN19CN18CN21CN16CN15CN8CN4CN5CN26CN24CCN1CN11CN22CON12CON5CON8CON13CON1CON2CON14CON16CON9CON6CON15CON11CON7ThermalPrinterCOMPortEncoderR/LPIPrinterKey12V,5VREFCAMKERCAMLCDKeyDiopterPIChartLED/PIDiopterMotorREFMotorDCMotorREFLEDEXTLEDMIRERINGLEDSWITCH

FUSEACINPUTFUSEINLETSMPS92.电控系统-控制单元CPUFLASH(32Mbit)FRAM(512Kb:SETUP)RS-232(Debug)FPGABUZZERPRINTERRTCPMICDDR2(512Mbit)DDR2(512Mbit)FRAM(512Kb:LOG)KERATOCAMERALCDREFCAMERAKEYPADDIOPTERPIREFPICHARTLAMPDIOPTERMOTORDCMOTORREFLEDMIRERINGEXTLEDEXTVIDEOBASEIF(AFMB/D)PPLEDLCDPIPE/CAMPIPEDATAPIPE103.测量原理–屈光度（REF）REF光源人眼反射片多孔盘相机人眼屈光(Refractometer)测量原理远视正视正视11角膜曲率(Keractometer)测量原理K