Patent ID: 6704589
Filing Date: 2004-03-09
Classification: G01H

Abstract:
A method for obtaining two-dimensional image of an object surface by means of focusable radiation comprising:(i) defining on the object surface an array of object elements comprising crossing points of a transmitter line and receiver line; and for each object element: (a) using a transmitter having an associated transducer, to emit a first signal of the radiation focused on a desired transmitter line; (b) using a receiver, having an associated transducer which is separate from the transmitters transducer, to receive substantially simultaneously a second signal of the radiation that is generated by means of the first signal and is focused on a desired receiver line crossing the transmitter line and further utilizing a phase shifter network so that display information of multiple object elements can be recorded on different receiving lines at the same time; (c) picking-up an associated image information item for the object element from the second signal; and thereafter, (ii) composing an image from the image information items of substantially all of the object elements.