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Two-Faced World

Optics & Eye Health

★Exhibit Content: Optical Illusion ★Interaction: Graphic and Text Interaction ★Operation: 1. Approach the exhibit; 2. View the lenticular image from the left or right; 3. Then view the lenticular image from the opposite angle. ★Exhibit Description: The exhibit consists of a specially made lenticular image and a frame, and is a recommended exhibit from the PopsciCat Exhibit Store. The image is drawn with the lenticular as the main body, and two different pictures are combined into one through the lenticular. When visitors enter the exhibition hall, when the visitor's viewpoint is on the left side of the lenticular, a complete picture is presented. When the visitor's viewpoint moves to the right side of the lenticular, it can be found that the previous picture has become a completely different picture. ★Scientific Principle: The exhibit is based on optical illusion and lenticular occlusion principles. The specially made lenticular alternately embeds pixel strips of two different images. When viewed from the left, the lenticular occludes the right image, showing only the complete left image; when viewed from the right, the lenticular occludes the left image, showing only the complete right image. The change in viewpoint alters the visible image area, thereby achieving two completely different visual effects for the same picture at different angles.

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Principle Display: ★★★★ Interaction Effect: ★★★ Ease of Installation: ★★★★ Durability: ★★★★★ Overall Rating: ★★★★

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