Patent ID: 11906571
Assignee: MPI CORPORATION
Field: Optics (Instruments)
Classification: CPC G  H | IPC G  H

Claim 6:
7. The optical detection system according to claim 6,
wherein the laser light providing module includes a beam quantity adjuster, and the beam quantity adjuster is a spatial light modulator or a beam distribution element having at least two through openings;
wherein, when the beam quantity adjuster is the beam distribution element, the at least two through openings of the beam distribution element are completely covered by a laser beam generate by the laser light providing module;
wherein, when the beam quantity adjuster is the beam distribution element, the beam distribution element is configured for allowing a part of the laser beam to pass through the at least two through openings so as to correspondingly form at least two projection beams, and a shortest distance between the at least two through openings is equal to a shortest distance between the at least two projection beams;
wherein, when the beam quantity adjuster is the beam distribution element, a size and a shape of a light spot projected by the projection beam on an active region of the photodiode are respectively changed according to a size and a shape of the through opening of the beam distribution element;
wherein, when the beam quantity adjuster is the spatial light modulator, the spatial light modulator is configured for allowing the laser beam to pass through or for reflecting the laser beam, thereby converting the laser beam into the at least two projection beams, and the spatial light modulator is configured for adjusting the shortest distance between the two projection beams, a quantity of the projection beams, and the size and the shape of the light spot of the projection beam;
wherein, when different positions of the active region of the same photodiode are excited by the projection beam so as to respectively generate a plurality of different electrical signals, the electrical detection module is configured for electrically contacting the photodiode so as to obtain a plurality of different electrical signals of the photodiode, thereby calculating an average current value of the photodiode or determining a maximum current position of the active region of the photodiode.