INTERFEROMETER Russian patent published in 2003 - IPC

FIELD: measurement of optical characteristics of substances, optical detection of material components. SUBSTANCE: given interferometer has optically coupled light radiation source, reflecting plate made of optically clear substance with refractive index n₁, beam splitting element, matrix periodic system of photocells ganged to it, spectrum analyzer, at least one thin partially transmitting layer having thickness under λ/2, placed between source of luminous radiation and reflecting plate at angle θ, found from relationship sinθ = λ/2d, where θ is angle included between thin partially transmitting layer and wave front of light wave; λ is length of light wave; d is period of interference bands. Interferometer displays capability of attachment of analyzed material component to surface of reflecting plate, zones of solution can be located on surface of component. Reflecting plate is made of optically clear substance with refractive index n₁ chosen from relationship n₁<n₂- where n₂- is refractive index of solution. Matrix periodic system of photocells is mounted for turn around optical axis of interferometer. Proposed interferometer can find application for diagnostics of state of man's skin. EFFECT: capability to record distribution and location of numerous zones of solution on surface with the help of simple optical device. 1 dwg