METHOD OF PICKING UP OPTICAL SIGNAL, DEVICE FOR REALISING SAID METHOD AND OBJECT SCANNING METHOD Russian patent published in 2011 - IPC H01L27/148 

FIELD: physics.

SUBSTANCE: method of picking up an optical signal involves decomposing light flux into spectral components, forming coherent light flux therefrom and directing the obtained flux onto the surface of a sensor in form of a CCD matrix. The matrix has at least two layers of photosensitive elements. Light flux photons are absorbed by the photosensitive elements of the layer of the matrix which is first relative their direction of motion and/or at least one of the next layers when photons break through the previous layers, and photosensitive elements of the layers accumulate electric charge by absorbing photons. The decomposed light flux is distributed on the surface of the matrix to form at least two regions, in each of which part of the spectrum of the decomposed light flux is absorbed, and the intensity value of the light flux is determined for each part of the spectrum from total charge accumulated by the photosensitive elements on all layers of the matrix in each of its regions.

EFFECT: high accuracy of determining intensity of light flux in different spectral regions.

13 cl, 10 dwg