Microscopic object collection system and microscopic object collection method

5:

• The microscopic object collection system according to claim 1, wherein
• when the multi-point irradiation mode is selected under a condition that the liquid is prepared on the photothermal conversion region, the controller controls the adjustment mechanism
• to produce convection over the photothermal conversion region toward (i) a plurality of air bubbles and (ii) a gap between a plurality of air bubbles by emission of the plurality of laser beams, and
• to collect the plurality of microscopic objects in the gap.

6:

• A microscopic object collection method of collecting a plurality of microscopic objects dispersed in a liquid, the microscopic object collection method comprising:
• preparing the liquid on a photothermal conversion region provided in a substrate;
• adjusting relative positional relation between a condenser lens that condenses a plurality of laser beams to an identical focal point and the photothermal conversion region,
• the adjusting relative positional relation including selectively setting a first state and a second state,
• the first state being a state in which the relative positional relation is adjusted such that the focal point of the plurality of laser beams falls on the photothermal conversion region,
• the second state being a state in which the relative positional relation is adjusted such that at least some of the plurality of laser beams pass through the photothermal conversion region while the focal point does not fall on the photothermal conversion region;
• producing convection over the photothermal conversion region toward (i) a plurality of air bubbles and (ii) a gap between a plurality of air bubbles by emission of the plurality of laser beams when the second state is selected;
• and
• collecting the plurality of microscopic objects in the gap.