A wavefront sensor includes a light source configured to illuminate a subject eye, a detector, a first beam deflecting element configured to intercept a wavefront beam returned from a subject eye when the subject eye is illuminated by the light source and configured to direct a portion of the wavefront from the subject eye through an aperture toward the detector and a controller, coupled to the light source and the beam deflecting element, configured to control the beam deflecting element to deflect and project different portions of an annular ring portion of the wavefront from the subject eye through the aperture and further configured to pulse the light source at a firing rate to sample selected portions of the annular ring at the detector.一種波前感測器包括:一光源,其經組態以照明一受檢者眼睛;一偵測器;一第一光束偏轉元件,其經組態以在一受檢者眼睛由該光源照明時截獲自該受檢者眼睛返回之一波前光束,且經組態以引導來自該受檢者眼睛之該波前之一部分穿過一光圈朝向該偵測器;及一控制器,其耦接至該光源及該光束偏轉元件,該控制器經組態以控制該光束偏轉元件以偏轉及投影來自該受檢者眼睛之該波前之一環形圈部分的不同部分使其穿過該光圈且經進一步組態以按一發射速率用脈衝輸送該光源以在該偵測器處對該環形圈之選定部分取樣。202‧‧‧補償透鏡或窗204‧‧‧第一透鏡212‧‧‧微電子機械系統(MEMS)光束掃描/移位/偏轉鏡216‧‧‧第二透鏡218‧‧‧波前取樣光圈220‧‧‧子波前聚焦透鏡222‧‧‧象限偵測器235‧‧‧發光二極體(LED)(或陣列)240‧‧‧第三透鏡242‧‧‧第四透鏡252‧‧‧反射鏡260‧‧‧成像光束分光器261‧‧‧二向色或短通光束分光器262‧‧‧影像感測器264‧‧‧注視目標266‧‧‧注視/成像光束分光器268‧‧‧透鏡或透鏡集合270‧‧‧透鏡或透鏡集合272‧‧‧超發光二極體(SLD)274‧‧‧偏光光束分光器(PBS)276‧‧‧帶通濾波器277‧‧‧光圈278‧‧‧動態波前/散焦抵銷器件280‧‧‧掃描鏡282‧‧‧掃描鏡284‧‧‧超發光二極體(SLD)光束形狀操縱透鏡286‧‧‧透鏡288‧‧‧單模光纖(諸如,維持偏光(PM)單模光纖)290‧‧‧光纖耦合器292‧‧‧參考臂294‧‧‧偵測器299‧‧‧內部校準目標
