Tetragonal prismatic light wave band hidden device constructed by utilizing anisotropic medium

Abstract

The invention discloses a tetragonal prismatic light wave band hidden device constructed by utilizing an anisotropic medium. The tetragonal prismatic light wave band hidden device is a housing with a cavity, which is surrounded by four transparent anisotropic medium units, the transparent anisotropic medium units are prism bodies with isosceles trapezoid-shaped cross sections, and the side surface in which each waist of the cross section of each anisotropic medium unit is located and the side surface in which the corresponding waist of the cross section of the adjacent anisotropic medium unitis located are jointed together; and the side surfaces in which the lower bottom edges of the cross sections of all the anisotropic medium units are located form an outer wall of the housing by surrounding, the side surfaces in which the upper bottom edges of the cross sections of all the anisotropic medium units are located form an inner wall of the housing by surrounding, and the cavity of the housing is used for placing an object to be hidden. When light passes through the device disclosed by the invention, the anisotropic medium is used for controlling the propagation direction of the light and enabling the light to bypass the middle cavity, and the emergent direction of the light is the same with the original incident direction of the light, so that the device has a hidden effect in four directions and is suitable for a whole visible light wave band.

Description

technical field [0001] The invention relates to a square columnar optical band stealth device constructed by using an anisotropic medium, which belongs to the field of visible light stealth. Background technique [0002] Stealth has always been an ideal of human beings for a long time, but stealth technology has not been realized for a long time. The existing stealth technology is mainly in the microwave band, coating the surface of the object with materials that can absorb radar waves to prevent the target from being detected by the radar, so as to achieve invisibility. However, this technology is not true stealth, and in the visible light band, the object is still visible. of. In the optical band, the existing stealth technology is mainly military camouflage, etc. However, this is only a kind of camouflage rather than really disappearing from sight. There is a kind of stealth device that uses a camera and a display screen to capture objects on one side and display them o...

AI Technical Summary

Problems solved by technology

[0002] Stealth has always been an ideal of human beings for a long time, but stealth technology has not been realized for a long time

The existing stealth technology is mainly in the microwave band, coating the surface of the object with materials that can absorb radar waves to prevent the target from being detected by the radar, so as to achieve invisibility. However, this technology is not true stealth, and in the visible light band, the object is still visible. of

In the optical band, the existing stealth technology is mainly military camouflage, etc., however, this is only a kind of camouflage rather than disappearing from sight

There is a kind of cloaking device that uses a camera and a display screen to capture objects on one side and display them on the other side, but its effect is affected by the quality of the image, and it requires extra energy, and the device is relatively complicated

There is another way to guide the light from one side to the other through the optical fiber, thereby bypassing the object in the middle, but such a device has high requirements on the optical fiber technology, and can only achieve stealth in one direction

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