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• W4317771202 abstract "Based on the principle of geometric optics, we propose a design idea to realize the invisibility of three-dimensional objects. According to the electromagnetic characteristics of the material, the device modulates the scattered light of the invisible object and the parallel light emitted from the background of the device through the combination of two different materials and the structural design of the invisibility device. The invisible object is approximated as a cylinder, and its scattered light is approximated as a radial beam centered on the central axis of the cylinder. The invisibility device is designed based on the multi prism and modulates the propagation path of the light scattered from the object, so that the scattered light can be reflected many times in the device and avoid the detector which is in front of the device. Beside this, light ports are designed on both sides of the device, which can be used for the emission of the scattered light that scattered from any position of the object, so as to prevent the scattered light from becoming stray light after countless times of reflection and emitting at any position of invisibility device. In addition, assuming that the stealth device is in front of a uniform background with a single color, and the background light is approximately a parallel light, the device can also modulate the propagation path of the background parallel light. Through multiple refraction and reflection, the background light can bypass the invisible object and continue to propagate in the original direction as a parallel light, which can be detected by the detector. Through the combination of the two light path modulation, the effect that the detector can only detect the background light but not the scattered light of the object is realized, that is, the object is invisible. ZEMAX optical simulation software is used to simulate the light propagation path of the object scattered light and the background parallel light modulated in the invisibility device. The optical detector in the software simulates the real detector. The modulation effect and stealth effect of the invisibility device are analyzed through the detection data. The analysis shows that the design of the invisibility device based on the principle of geometric optics has a perfect modulation effect on the scattered light of the object and the background parallel light, and can realize the stealth of the macro three-dimensional object in the uniform background." @default.
• W4317771202 created "2023-01-24" @default.
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• W4317771202 date "2023-01-23" @default.
• W4317771202 modified "2023-10-17" @default.
• W4317771202 title "Design and simulation of invisibility device based on geometrical optics" @default.
• W4317771202 doi "https://doi.org/10.1117/12.2651376" @default.
• W4317771202 hasPublicationYear "2023" @default.
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