DEVICE FOR GENERATING PATTERNED LIGHT INTERFERENCE

摘要

A patterned light interference generating device 1 is provided with a laser light source 10; a wavefront controller 20 for receiving laser light, presenting a hologram pattern to control the wavefront of the laser light, and outputting wavefront-controlled light; an imaging optical system 40 for imaging the wavefront-controlled light at a target position 2; a filter 50 arranged at a portion of concentration by the imaging optical system 40; and a control unit 30 for controlling the hologram pattern; the filter 50 has a plurality of slits in one-to-one correspondence to a plurality of bright spots of a desired order; each of the plurality of slits has an elongated shape extending radially from a center of the plurality of bright spots of the desired order; one end on the center side of each of the plurality of slits is separated from the center.

主权项

1. A device for generating desired patterned light interference at a target position, comprising:
a laser light source for generating laser light; a wavefront controller for receiving the laser light from the laser light source, presenting a hologram pattern to control the wavefront of the laser light in a plurality of pixels arranged in a two-dimensional array, and outputting wavefront-controlled light; an imaging optical system for imaging the wavefront-controlled light from the wavefront controller at the target position; a filter arranged at a portion of concentration by the imaging optical system; and a control unit for controlling the hologram pattern presented in the wavefront controller, so as to generate a plurality of bright spots of a desired order at the portion of concentration by the imaging optical system, wherein the filter has a plurality of slits in one-to-one correspondence to the plurality of bright spots of the desired order, wherein each of the plurality of slits has an elongated shape extending radially from a center of the plurality of bright spots of the desired order, and wherein one end on the center side of each of the plurality of slits is separated from the center.