Demonstration device for generating Poggendorff illusion and demonstration method

Abstract

The invention discloses a demonstration device for generating Poggendorff illusion, comprising a test board, a demonstration module and a laser. A parallel line set formed by four to six inclined line segments is arranged at the right lower part of the front surface of the test board; the demonstration module can be fixed at the left upper part of the test board, and the angle and the up-and-down position of the demonstration module can be regulated to enable the demonstration module to be arranged in the same line with any one line segment in the parallel line set; and the laser is fixed at the front end of the demonstration module. When the demonstration device is used, the front surface of the test board is displayed to an observer, and the angle and the up-and-down position of the demonstration module are regulated to enable the observer to feel and determine which line segment in the parallel line set at the right lower part is in the same line with the demonstration module; and the laser is started, the observer observes that lasers passes through the line to verify a fact.

Description

1. Technical field [0001] The invention relates to a demonstration device and a demonstration method for demonstrating optical visual effects, belonging to the technical field of experimental demonstration devices. 2. Background technology [0002] British visual scientist Al Seckel (Al Seckel) reported a visual picture of "Porgendorf Optical Illusion" in "The Art Of Optical Illusions". The picture is composed of a group of parallel lines and a line segment. The line segment is on the extension line of one of the parallel lines. When observing the picture with concentrated eyes, it is difficult to judge which parallel line is on the same line. The above-mentioned research results are very useful in demonstration experiments for college and middle school students, or in science popularization work in popular science publicity and education departments. When demonstrating the above results, on the one hand, the observer first judges which parallel line the line segment is on ...

AI Technical Summary

Problems solved by technology

When demonstrating the above results, on the one hand, the observer first judges which parallel line the line segment is on a straight line, but the demonstrator can only tell the observer the actual result, and there is no effective way to prove wh

Images