2results about How to "Large scanning area" patented technology

The utility model discloses a kind of grid compensation scanning systems, frame driving device drives mobile wind field frame intermittent horizontal movement in the forming space of 3D printing equipment along X direction, the mobile wind field frame of grid structure is formed with several lattices being arranged along X direction interval, several groups of laser galvanometer system along X direction arrangement respectively scans the powder field in each lattice range of mobile wind field frame, each lattice two side walls are respectively equipped with several air outlet and air inlet, air supply main pipe and return air main pipe on the outer side wall of mobile wind field frame are respectively communicated with each air outlet and air inlet, air supply main pipe is connected with the one end of air supply slide pipe of length adjustable, return air main pipe is connected with the one end of return air slide pipe of length adjustable, air supply slide pipe and return air slide pipe other end are respectively communicated with the air inlet and air outlet of protective gas circulation system, the utility model is favorable to realize fine scanning and efficient scanning, guarantee workpiece quality.

A method and a cell image analyzer for locating a region of interest (ROI) on a blood smear are provided. The method includes: a control device acquiring the initial and final imaging positions of an image capturing device for cell imaging of the blood smear, wherein the line connecting the initial and final imaging positions passes through the ROI (101); the control device causing relative movement between the image capturing device and the blood smear, and causing the image capturing device to capture multiple cell images at different positions on the blood smear starting from the initial imaging point until the relative movement and imaging stop at the final imaging position (102); and the control device determining the target position of the ROI based on the image features and imaging positions of the multiple cell images (103). This analyzer allows users to locate the ROI more quickly and accurately, and facilitates increasing the scanning area of ​​the ROI according to user needs.