Eyeball Imaging
Operation: Press the start button, rotate the optical lens turntable, adjust the focal length, observe the clarity of the image on the eyeball model, and intuitively understand the imaging differences between normal vision, myopia, and hyperopia. Exhibit Description: The exhibit consists of an operation console, an eyeball model, an imaging light source, an optical lens turntable, and a variable focal length lens. The imaging light source is a lit letter F; the variable lens in front of the eyeball model simulates the lens, and the frosted glass at the back simulates the retina; by rotating the turntable to switch lenses of different focal lengths, the imaging states of normal vision, myopia, and hyperopia can be simulated, allowing participants to intuitively understand the principles of eyeball imaging and the causes of myopia and hyperopia, and learn eye health science knowledge. Scientific Principle: Eyeball imaging utilizes the imaging principle of a convex lens; the lens is equivalent to a convex lens, and the retina is equivalent to a light screen. Under normal vision, light is refracted by the lens and the image is formed on the retina; myopia is because the lens is too thick and the focal length is too short, so the image is formed in front of the retina; hyperopia is because the lens is too thin and the focal length is too long, so the image is formed behind the retina. This exhibit, through a simulation model, intuitively presents the optical structure of the eyeball and the causes of vision abnormalities.
Options
- 0.75×1.14×0.90 0.75×1.14×0.90Overall Dimensions: 0.75×1.14×0.90 Brand: KexMall Model: PopsciCat-Medium-096 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 AC female socket position for power supply to electrical exhibits ② Tabletop: high-quality flame-retardant fiberglass material, total thickness with edges ≥100mm ③ Protective cover: transparent acrylic + white acrylic ④ Instruction plate, graphic panel: acrylic high-definition UV printing, ≥3mm ⑤ Core components: simulated eyeball sphere model, variable focal length optical lens, LED matrix light source 2. Main Configuration ① Electrical control: electrical logic control system, equipped with Inertia® K1 type PLC controller with protection specially for science exhibits ② Drive device: optical lens turntable transmission assembly, light source drive module ③ Demonstration device: eyeball model, variable focal length lens, LED imaging light source (letter F) ④ Switching power supply: AC-DC S-60-12/24 input AC100-240V, 50/60Hz, output power 60W ⑤ Button: self-resetting 22mm stainless steel metal button with ring light; lamp bead voltage not higher than 12V 3. Exhibition Requirements ① Energy requirement: AC100-240V, 50/60Hz 200W (standard three-wire socket) ② Installation foundation: finished product, directly placed ③ Entry passage: door frame dimensions (width × height) ≥0.7m×1.2m, continuous turning interval ≥1.5m ④ Maintenance passage: not required
Operation: Press the start button, rotate the optical lens turntable, adjust the focal length, observe the clarity of the image on the eyeball model, and intuitively understand the imaging differences between normal vision, myopia, and hyperopia. Exhibit Description: The exhibit consists of an operation console, an eyeball model, an imaging light source, an optical lens turntable, and a variable focal length lens. The imaging light source is a lit letter F; the variable lens in front of the eyeball model simulates the lens, and the frosted glass at the back simulates the retina; by rotating the turntable to switch lenses of different focal lengths, the imaging states of normal vision, myopia, and hyperopia can be simulated, allowing participants to intuitively understand the principles of eyeball imaging and the causes of myopia and hyperopia, and learn eye health science knowledge. Scientific Principle: Eyeball imaging utilizes the imaging principle of a convex lens; the lens is equivalent to a convex lens, and the retina is equivalent to a light screen. Under normal vision, light is refracted by the lens and the image is formed on the retina; myopia is because the lens is too thick and the focal length is too short, so the image is formed in front of the retina; hyperopia is because the lens is too thin and the focal length is too long, so the image is formed behind the retina. This exhibit, through a simulation model, intuitively presents the optical structure of the eyeball and the causes of vision abnormalities.