1. The wavefront sensor comprising: a light source 172 configured to illuminate the eye of a subject, a detector 122, a first beam deflection element 112 is configured to intercept the wavefront beam returned from the eye of the subject when the subject illuminated light source of the eye, and configured to devote part of the wave front of the eyes of the subject through the aperture to the detector and a controller coupled to the light source and the element of the beam deflection configured to control beam deflection to deflect and project the various sections of part annular circumferential wavefront from the eye of the subject through the aperture, and further configured to pulse modulation of the light source with a frequency start to sample selected an annular portion circumferentially detektore.2. Wavefront sensor according to Claim. 1, wherein the controller is further configured to increase the frequency start to increase the density of the portion of the annular sampling okruzhnosti.3. Wavefront sensor according to Claim. 1, wherein the controller is further configured to phase shift the start time to shift the location of the corner pieces of sampled detektorom.4. Wavefront sensor according to Claim. 1, wherein the controller is configured to control beam deflection to vary the radius of the sampled portion wavefront annular circumference, so that a set of circles of different radii annular detektorom.5 sampled. Wavefront sensor according to Claim. 1, wherein the controller is configured to control beam deflection to limit1. Датчик волнового фронта, содержащий:источник 172 света, сконфигурированный, чтобы подсвечивать глаз субъектадетектор 122первый элемент 112 отклонения пучка, сконфигурированный, чтобы перехватывать пучок волнового фронта, возвращенный от глаза субъекта, когда глаз субъекта подсвечивается источником света, и сконфигурированный, чтобы направлять часть волнового фронта от глаза субъекта через апертуру к детектору иконтроллер, связанный с