Fresnel Lens
Operation: Look at objects through the Fresnel lens and see what changes. Function Overview: The continuous surface of the lens partially "collapses" onto a flat plane. In cross-section, its surface consists of a series of sawtooth-shaped grooves, with an elliptical arc in the center. Each groove is at a different angle to its neighbors, but all concentrate light at a single point, forming the central focal point, which is the lens's focus. Each groove can be regarded as an independent small lens, adjusting light into parallel beams or focusing it. This type of lens can also eliminate some spherical aberration. Visitors can look at nearby objects in their hands through the Fresnel lens, as well as distant objects, to understand the working principle of the Fresnel lens.
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- 0.9×0.6×1.16 0.9×0.6×1.16Overall Dimensions: 0.9×0.6×1.16 Brand: KexMall Model: PopsciCat-Medium-008 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 reinforced plastic, total thickness with edges ≥100mm ③ Instruction plate: acrylic UV high-precision printing, thickness ≥3mm ④ Maintenance door: 2.0mm cold-rolled steel plate, surface baked paint (or electrostatic powder coating) ⑤ Bracket: orange acrylic Main Configuration: ① Fresnel lens: 1 piece Energy Requirement: None
Operation: Look at objects through the Fresnel lens and see what changes. Function Overview: The continuous surface of the lens partially "collapses" onto a flat plane. In cross-section, its surface consists of a series of sawtooth-shaped grooves, with an elliptical arc in the center. Each groove is at a different angle to its neighbors, but all concentrate light at a single point, forming the central focal point, which is the lens's focus. Each groove can be regarded as an independent small lens, adjusting light into parallel beams or focusing it. This type of lens can also eliminate some spherical aberration. Visitors can look at nearby objects in their hands through the Fresnel lens, as well as distant objects, to understand the working principle of the Fresnel lens.