a cloaking device
A one-to-one correspondence, wave plate technology, applied in the field of object stealth and optics, which can solve problems such as fixed viewing angle
Active Publication Date: 2021-01-15
BOE TECH GRP CO LTD
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Problems solved by technology
For example, the surface of the object is disguised as a background pattern, such as camouflage, to achieve an indistinguishable effect, but this cannot be regarded as stealth in the true sense; The captured background image is displayed on the front display screen in real time. Although this method can realize the perspective of the object, but the viewing angle of the screen is fixed, and the "peeling" between the image and the background can be clearly observed
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[0040] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.
[0041] The above-mentioned background technology has explained several implementation methods of common stealth technologies, but the above-mentioned stealth methods are difficult to realize stealth in a real sense. At present, there has been a technical solution to make the light bypass the object by means of light refraction to realize the object's invisibility. This solution usually consists of several optical elements to form a cavity, and the light will bypass the cavity after incident from one side. , and then restore the original propagation direction on the opposite s...
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An embodiment of the invention discloses a cloaking device. According to the cloaking device, four wave plates define a cloaking cavity; the planes where the short sides of four trapezoid prisms are located are attached to the four side surfaces of the cloaking cavity in a one-to-one correspondence mode; the adjacent surfaces of the two adjacent trapezoid prisms are attached to each other; the inclined surfaces of right-angle prisms are attached to the planes where the long sides of the trapezoid prisms are located in a one-to-one correspondence mode; a cube with the cloaking cavity as a cavity is formed; four polarizers are attached to the four side surfaces of the cube in a one-to-one correspondence mode; and the cloaking device is formed, wherein the inclined surface of each right-angleprism is provided with a beam-splitting film, which is used for transmitting polarized light in a specified direction when light rays reach the beam-splitting film, and reflecting polarized light perpendicular to the specified direction. Through reasonable design of the internal structure of the cloaking device, by adopting light refraction and reflection principles, and in combination with conversion control of a polarization direction of the light rays, a structure capable of effectively cloaking an object is realized.
Description
technical field [0001] This application relates to but not limited to the field of object cloaking and optical technology, especially a cloaking device. Background technique [0002] Stealth technology is a long-term exploration technology of human beings, and many methods have appeared in order to realize stealth. For example, the surface of the object is disguised as a background pattern, such as camouflage, to achieve an indistinguishable effect, but this cannot be regarded as stealth in the true sense; The captured background image is displayed on the front display screen in real time. Although this method can realize the perspective of the object, the viewing angle of the screen is fixed, and the "peeling" between the image and the background can be clearly observed. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the embodiment of the present invention provides a cloaking device. By rationally designing the internal struc...
Claims
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IPC IPC(8): G02B27/28G02B5/30G02B5/04
CPCG02B5/04G02B5/3083G02B27/283G02B27/286
Inventor 马森武乃福洪涛
Owner BOE TECH GRP CO LTD