Shifting Landscapes
Operation: Look at the landscape painting inside the light box through the lens on the turntable, and you will find that the black-and-white picture becomes a color picture. Rotate the turntable, and the colors of the landscape painting will change. Exhibit Overview: The exhibit consists of a black-and-white line drawing light box and a turntable device. When visitors look directly at the light box, they see a landscape painting outlined in black lines; when they look through the transparent glass on the turntable, they find that the line drawing becomes a color picture; if they rotate the turntable, they discover that the color picture can also change colors—very magical! Scientific Principle: Why does the color presented by the landscape painting change when viewed through this lens? A polarizing film is embedded on the side of the light box near the light source, so the emitted light is polarized. The outermost side of the light box is covered with transparent films of different thicknesses, and a polarizing film is attached to the inner side of the turntable. Because films of different thicknesses refract polarized light to different degrees, when the turntable is rotated, the polarizing film inside the turntable polarizes the direction of light polarization, and the light displays different colors and brightness.
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- 0.9×0.6×1.33 0.9×0.6×1.33Overall Dimensions: 0.9×0.6×1.33 Brand: KexMall Model: PopsciCat-Medium-017 Materials: ① Base: 2.0mm cold-rolled steel plate, dimensions not less than 0.75×0.45×0.7m, surface baked paint (or electrostatic powder coating), reserved floor feet for later height adjustment and four-corner balance, reserved pin-type AC female socket position for power supply to electrical exhibits ② Tabletop: high-quality flame-retardant fiberglass material, total thickness with edge ≧100mm ③ Instruction sign: acrylic UV high-precision printing, thickness ≧3mm ④ Maintenance door: 2.0mm cold-rolled steel plate, surface baked paint (or electrostatic powder coating) ⑤ Light box housing: 2.0mm cold-rolled steel plate with surface powder coating ⑥ Turntable: PC + acrylic, etc. 2. Main Configuration: ① Electrical control: electrical logic control system, equipped with Inertia® K1 type PLC controller with protection specially for science exhibit ② Switching power supply: AC-DC S-60-12/24 input AC100-240V, 50/60Hz, output power 60W Energy Requirements: AC100-240V, 50/60Hz 100W (standard three-wire socket)
Operation: Look at the landscape painting inside the light box through the lens on the turntable, and you will find that the black-and-white picture becomes a color picture. Rotate the turntable, and the colors of the landscape painting will change. Exhibit Overview: The exhibit consists of a black-and-white line drawing light box and a turntable device. When visitors look directly at the light box, they see a landscape painting outlined in black lines; when they look through the transparent glass on the turntable, they find that the line drawing becomes a color picture; if they rotate the turntable, they discover that the color picture can also change colors—very magical! Scientific Principle: Why does the color presented by the landscape painting change when viewed through this lens? A polarizing film is embedded on the side of the light box near the light source, so the emitted light is polarized. The outermost side of the light box is covered with transparent films of different thicknesses, and a polarizing film is attached to the inner side of the turntable. Because films of different thicknesses refract polarized light to different degrees, when the turntable is rotated, the polarizing film inside the turntable polarizes the direction of light polarization, and the light displays different colors and brightness.