METHOD AND DEVICE FOR DETECTING FUNDAMENTAL NATURAL MODES OF VIBRATION OF AN EYE, BY LASER INTERFEROMETRY, AND THEIR USE FOR MEASURING INTRAOCULAR PRESSURE

摘要

we take the eye (3) with a detection device (1), anddevice to form a fabry perot cavity optical axis - main(a1) and with two opposite reflective surfaces on the optical axisprimary (al), one of the two surfaces are formed by an elementreflective (m1) fixed, and the other is formed by the cornea of the eye (2). wea laser beam injected into the cavity (e) centred on the axis, incidentthe main view (a1) of the fabry perot cavity, lateral, and alignments.based on the cornea (2) relative to the optical axis (a1) is the mainmade to obtain longitudinal interference betweenlaser beam back and forth between the two reflective faces of thinkingthe cavity is detected, and by means of a sensor (7).the intensity (i), in the time of the interference. application: measurement ofintra ocular pressure.