Patent ID: 11874454
Assignee: EVIDENT CORPORATION
Field: Optics (Instruments)
Classification: CPC G  A | IPC A  G

Claim 0:
1. An optical scanning apparatus comprising:
a fiber comprising a plurality of cores, the fiber being configured to transmit light between a first end surface of the fiber and a second end surface of the fiber,
wherein the first end surface of the fiber is configured by one end surface of the plurality of cores, and the second end surface of the fiber is configured by another end surface of the plurality of cores; and
wherein a first light having an incident wavefront which is a plane wave incident on the first end surface of the fiber exits from the second end surface of the fiber as a second light having a second wavefront due to relative phase differences among the plurality of cores, the second light having a random intensity distribution;

a light source configured to emit a light;
a basic wavefront modulator configured to perform spatial light phase modulation on the light emitted from the light source to be incident on the first end surface of the fiber, such that the light to be incident on the first end surface of the fiber has a basic wavefront that offsets the relative phase difference among the plurality of cores and is transmitted by the fiber to exit from the second end surface of the fiber as illumination light having a basic intensity distribution at a position with a predetermined distance from the second end surface of the fiber, and having a predetermined intensity pattern; and
a two-dimensional intensity distribution control apparatus configured to be controlled to change the basic intensity distribution of the light having the basic wavefront to thereby cause a position of the predetermined intensity pattern to shift.