Field-of-view stitching system and method, biological sample identification device and method

A biological sample identification device based on super-resolution imaging, comprising:

• a field of view stitching system, comprising:
• a light source module for emitting a first beam;
• a light guiding element on an optical path of the first beam and configured to split the first beam into a plurality of second beams, wherein the light guiding element comprises an incident surface positioned corresponding to the light source module, a first exit surface facing and spaced apart from the incident surface, and a plurality of second exit surfaces configured to bend and extend from edges of the first exit surface towards the incident surface, the plurality of second beams configured to exit from the first exit surface and the plurality of second exit surfaces and propagate along the optical path;
• and
• a light modulation module comprising a plurality of light modulators, wherein a number of the plurality of light modulators is the same as a total number of the first exit surface and the plurality of second exit surfaces, each of the plurality of light modulators is configured to receive and regularly reflect one of the plurality of second beams, each of the plurality of light modulators has an effective light modulation area, each of the plurality of second beams is configured to cover the effective light modulation area of one of the light modulators when incident on the light modulator;
• wherein the light guiding element is further configured to receive and combine the plurality of second beams reflected to form an illuminating light to further exit through the incident surface and further configured to irradiate a biological sample to cause a detection light;
• an imaging module configured for receiving the detection light and generating a detection image based on the detection light;
• and a control portion electrically connected to the light source module, the plurality of light modulators, and the imaging module, the control portion configured to control an operation process of the light source module, the plurality of light modulators, and the imaging module, and to identify a biological feature of the biological sample based on the detection image.

A field of view stitching method applied to a field of view stitching system, wherein the field of view stitching system includes a light source module, a light guiding element, and a light modulation module, the light modulation module is provided with a plurality of light modulators, the light guiding element is provided with an incident surface, a first exit surface facing the incident surface, and a plurality of second exit surfaces bending and extending from edges of the first exit surface towards the incident surface, a number of the plurality of light modulators is the same as a total number of the first exit surface and the plurality of second exit surfaces, and each of the plurality of light modulators has an effective light modulation area;

• the field of view stitching method comprises:
• emitting a first beam towards the incident surface by the light source module;
• splitting the first beam into a plurality of second beams by the first exit surface and the plurality of second exit surfaces, and further directing the plurality of second beams to exit from the first exit surface and the plurality of second exit surfaces and propagate along an optical path of the first beam;
• transmitting each of the plurality of second beams to one of the plurality of light modulators, controlling each of the plurality of light modulators to receive and regularly reflect one of the plurality of second beams, and with each of the plurality of second beams covering the effective light modulation area of the light modulator;
• and
• forming an illumination light on the incident surface by a combination of the plurality of second beams which are regularly reflected to the light guiding element along an opposite direction of the optical path and pass through the first exit surface and the plurality of second exit surfaces.