Mechanical ellipsometer

Abstract

The invention discloses a mechanical ellipsometer and relates to a mapper. The mechanical ellipsometer comprises a frame, a dead shaft, a main gear, a rack, a spiral ring, a live shaft, a pinion, a moving frame and a moving strip with a pen holder. The transmission ratio of the main gear and the pinion is 2:1, the frame is provided with a slide groove allowing the rack to penetrate, the dead shaft is connected at one end of the frame, the main gear is fixedly connected on the dead shaft and meshed with the rack, the lower side of the dead shaft mounted with the main gear is provided with a positioning boss protruding out of the outer surface of the dead shaft, the spiral spring is sleeved with the dead shaft and abutted between the positioning boss and the main gear, and the live shaft is connected on the frame at one end distant from the dead shaft. The pinion is fixedly connected with the live shaft and meshed with the rack, the moving frame is connected at the bottom end of the live shaft, the moving frame is provided with a through groove with the moving strip with the pen holder therein, one end of the moving strip with the pen holder is sleeved in the through groove of the moving frame, and the other end of the moving strip with the pen holder is provided with a drawing pen positioning hole. The mechanical ellipsometer has the advantages of simple structure, convenience in use and high drawing accuracy.

Description

technical field [0001] The invention relates to a plotter, in particular to a mechanical ellipsometer capable of drawing an ellipse. Background technique [0002] An ellipse is a geometric figure often encountered in drawing. The drawing of an ellipse is relatively complicated, and it often takes a lot of working time for the draftsman to encounter more ellipses in the drawing. In order to increase the speed of drawing ellipses, draftsmen often use approximate drawing methods. It is time-consuming to draw an ellipse by using the approximate drawing method, and there are many auxiliary lines for drawing, which affects the quality of the drawing and often makes the drawing lose its fidelity. There are several different approximate drawing methods in different situations, which are not easy for draftsmen to master. There are also many design inventions of elliptical gauges now, but these elliptical gauges are either complex in structure or insufficient in precision or inconv...

AI Technical Summary

Problems solved by technology

It is time-consuming to draw an ellipse by using the approximate drawing method, and there are many auxiliary lines for drawing, which affects the quality of the drawing and often makes the drawing lose its fidelity

In different situations, there are several different approximate drawing methods, which are not easy for draftsmen to master

There are also many design inventions of elliptical gauges. These elliptical gauges are either complex in structure or not accurate enough or inconvenient to operate and use, and lack practical promotion value.

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