Negative Afterimage
★Exhibit Content: Human eye persistence of vision, complementary colors, visual negative afterimage physiological optics static observation interactive experience ★Interaction: Fixed-point gaze at the image, switch target observation visual illusion thinking interaction ★Operation: 1. Gaze intently at the pink monkey pattern on the left with both eyes for 30 seconds; 2. Quickly shift your gaze to the blank cage pattern panel on the right; 3. Observe the cage area carefully, and a complementary color afterimage of the monkey will appear out of thin air. Repeat the experiment multiple times to experience the visual negative afterimage effect. ★Exhibit Description: "Visual Negative Afterimage" is a square desktop science exhibit on the theme of human visual physiology, belonging to the optics and visual cognition exhibition area, and a recommended exhibit by KexMall. The exhibit uses a white and blue standard square operation console, with two blue support rods on the tabletop, respectively fixing two display boards: a pink monkey circular pattern and a blank cage circular pattern. A bilingual Chinese-English acrylic science explanation sign is laid flat on the tabletop. The exhibit uses the principle of human cone cell fatigue to create a visual illusion. Visitors can intuitively observe the negative afterimage by staring at a colored pattern for a long time and then switching to a blank screen. It explains in simple terms the complementary color pairing and the visual residual phenomenon caused by visual cell fatigue. ★Scientific Principle: The human retina contains photoreceptor cone cells corresponding to complementary colors such as blue/green and yellow/red; when staring at a single colored image for a long time, the photoreceptor cells corresponding to that color are continuously stimulated and become fatigued, temporarily reducing color perception. After quickly shifting the gaze to a blank light-colored area, the sensitivity of the fatigued cells decreases, and the complementary color photoreceptor cells paired with them dominate the vision. The brain automatically generates an afterimage with the opposite color to the original image. This phenomenon is called a visual negative afterimage. In the exhibit, after staring at the pink monkey pattern for a long time and switching to the blank cage, a complementary color monkey afterimage appears in the eyes, visually verifying the law of complementary colors and the physiological mechanism of human visual persistence.
Options
- 0.7×0.7×1.3m 0.7×0.7×1.3mDimensions (L×W×H): 0.7×0.7×1.3m Brand: KexMall Model: PopsciCat-optics-226 1. Materials ① Platform: Frame 2mm cold-rolled steel plate, enclosure 2.0mm cold-rolled steel plate with two-tone baked paint, rounded corners for anti-collision ② Tabletop: Kelisi artificial stone, thickness ≥12mm, flat matte wear-resistant surface ③ Display boards: High-density PVC board, double-sided UV high-definition printing of monkey and cage patterns, circular cut shape ④ Support rods: Solid blue round rods, threaded base detachable for easy replacement of pattern boards ⑤ Instruction sign: 5mm transparent acrylic UV high-definition printing, printing operation steps, complementary colors and visual negative afterimage scientific principles ⑥ Maintenance door: Lockable access door on the side of the cabinet, can store spare replacement pattern boards 2. Main Configuration ① Square load-bearing floor-standing operation console cabinet assembly ② Two sets of blue support rods + two sets of circular visual demonstration pattern boards ③ Complementary colors, visual negative afterimage physiological optics science graphic and text signage 3. Installation Requirements ① Energy requirement: No external power supply needed, pure static observation science exhibit, no electrical energy consumption ② Installation foundation: Operation console placed directly on the floor ③ Entry passage: Door frame size (W×H) ≥0.9m×1.4m, continuous turning interval ≥1.5m ④ Maintenance access: Not required
★Exhibit Content: Human eye persistence of vision, complementary colors, visual negative afterimage physiological optics static observation interactive experience ★Interaction: Fixed-point gaze at the image, switch target observation visual illusion thinking interaction ★Operation: 1. Gaze intently at the pink monkey pattern on the left with both eyes for 30 seconds; 2. Quickly shift your gaze to the blank cage pattern panel on the right; 3. Observe the cage area carefully, and a complementary color afterimage of the monkey will appear out of thin air. Repeat the experiment multiple times to experience the visual negative afterimage effect. ★Exhibit Description: "Visual Negative Afterimage" is a square desktop science exhibit on the theme of human visual physiology, belonging to the optics and visual cognition exhibition area, and a recommended exhibit by KexMall. The exhibit uses a white and blue standard square operation console, with two blue support rods on the tabletop, respectively fixing two display boards: a pink monkey circular pattern and a blank cage circular pattern. A bilingual Chinese-English acrylic science explanation sign is laid flat on the tabletop. The exhibit uses the principle of human cone cell fatigue to create a visual illusion. Visitors can intuitively observe the negative afterimage by staring at a colored pattern for a long time and then switching to a blank screen. It explains in simple terms the complementary color pairing and the visual residual phenomenon caused by visual cell fatigue. ★Scientific Principle: The human retina contains photoreceptor cone cells corresponding to complementary colors such as blue/green and yellow/red; when staring at a single colored image for a long time, the photoreceptor cells corresponding to that color are continuously stimulated and become fatigued, temporarily reducing color perception. After quickly shifting the gaze to a blank light-colored area, the sensitivity of the fatigued cells decreases, and the complementary color photoreceptor cells paired with them dominate the vision. The brain automatically generates an afterimage with the opposite color to the original image. This phenomenon is called a visual negative afterimage. In the exhibit, after staring at the pink monkey pattern for a long time and switching to the blank cage, a complementary color monkey afterimage appears in the eyes, visually verifying the law of complementary colors and the physiological mechanism of human visual persistence.
Review
Principle Display: ★★★ Interaction Effect: ★★★ Ease of Installation: ★★★★★ Durability: ★★★★★ Overall Rating: ★★★