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A method and a scanner for three dimensional focused laser beam spot scanning
 

Microstereolithography is a technique or method for fabrication of microstructures like micromechanisms, microdevices, microchannels or microcatheters . It comprises on axis or off axis scanning of a liquid photopolymer resin with a focused laser beam spot and allowing the scanned portion of the resin to cure or solidify and form the microstructures. This invention relates particularly to a method and a scanner for three dimensional focused laser beam spot scanning in microstereolithography for fabrication of microstructures like micromechanisms, microdevices, microchannels or microcatheters. The method and scanner of the invention can be also advantageously used for other applications like laser cutting or etching, near-field scanning optical microscopy (NSOM) or con-focal microscopy. The use areas of the method and scanner of the invention are not, however, limited to the above applications.

Indian patent application no. 1847/MUM/2007 Patent grant no.
Inventors: P S Gandhi and T Kundu