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

Claim 2:
3. The optical detection system according to claim 1, further comprising:
a beam splitting module configured to be disposed between the carrier module, the laser light providing module and the image capturing module, wherein the beam splitting module includes a first beam splitting element and a second beam splitting element; and
an ambient light providing module including an ambient light generating structure configured for generating an ambient light source, and a second optical lens configured to be disposed between the ambient light generating structure and the second beam splitting element;
wherein the first beam splitting element is configured to be disposed between the carrier module and the second beam splitting element, and the second beam splitting element is configured to be disposed between the first beam splitting element, the ambient light providing module and the image capturing module;
wherein, when the at least two projection beams provided by the laser light providing module are reflected by the first beam splitting element, and respectively and correspondingly projected onto the two active regions of the two photodiodes, the at least two projection beams are respectively reflected by the two active regions of the two photodiodes so as to correspondingly form two reflected beams;
wherein, when the two reflected beams sequentially pass through the first beam splitting element and the second beam splitting element and then are projected onto the image capturing module, the image capturing module is configured for judging whether the light spot of the projection beam deviates from a predetermined position of the active region of the corresponding photodiode through the position information;
wherein, when the second optical lens is configured for converting the ambient light source into an ambient beam that is projected onto the second beam splitting element, the ambient beam sequentially passes through the second beam splitting element and the first beam splitting element and then is projected onto the two photodiodes, thereby providing the ambient illumination that is required by the two photodiodes.