Patent ID: 8696164
Filing Date: 2014-04-15
Classification: A61B,B23K,G02B,G03H,Y10T

Abstract:
1. A device for laser-optical generation of mechanical waves for one or more of processing or examining a body, the device comprising: a laser light source for generation of laser light; and a passive modulator on which the generated laser light falls; wherein based on an incident laser light, a predetermined laser light intensity distribution is generated on or in the body in such a way that mechanical waves are excited on or in the body for at least one of processing the body, via detection of said waves, or examining the body; and wherein the passive modulator is formed as a diffractive optical element configured with a height profile structure formed on a surface of the diffractive optical element to vary a phase of the incident laser light, thus generating the predetermined laser light intensity distribution.