Interference imaging system
A technology of interference imaging and image reconstruction, applied in the direction of instruments, measuring devices, optical devices, etc., can solve the problem of not being able to obtain the best picture quality, lack of target object universality and application flexibility, and reduce interference baselines in other frequency bands Density and other issues to achieve the effect of reducing loss, improving quality, and expanding coverage
Active Publication Date: 2019-10-08
INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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[0005] The existing technology can only achieve partial interference baselines in a single band: in the evenly distributed baseline design scheme, there is a missing interference baseline between every two interference baselines, that is, the interference baseline density is only half of the maximum density; while other Most of the schemes focus on a certain frequency band to increase the local interference baseline density, and at the same time greatly reduce the interference baseline density of other frequency bands
The former's low-density coverage of the frequency domain cannot obtain the best picture quality, while the latter is only effective for specific target objects, lacking the universality of target objects and application flexibility
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[0027] The specific embodiments of the present application will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present application is not limited by the specific embodiments.
[0028] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.
[0029] The photonic integrated chip is used as an example below to illustrate the interference imaging system provided by the present application.
[0030] figure 1 Schematic diagram of the structure of the interference imaging system provided for the embodiment of the present application, such as figure 1 As shown, the interference imaging system includes: a light field discrete component 110 (Part1), a discrete ligh...
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The invention discloses an interference imaging system which comprises a light field discrete part, a discrete light field interference part and an image reconstruction part connected successively. The light field discrete part comprises at least one linear micro lens array, the linear micro lens array comprises micro lenses and are paired into micro lens pairs according to a preset interference baseline design scheme, and the spacing between two micro lenses in each micro lens pair equals the length of an interference baseline. The preset interference baseline design scheme covers all interference base lines whose length equals integer times of that of the shortest interference baseline. Thus, the interference imaging system of the interference baseline design scheme expanded the coveragearea of the frequency domain space, loss of frequency domain information is reduced, and the quality of reconstructed images is improved.
Description
technical field [0001] The present application relates to the field of micro-nano optoelectronic integration, in particular to an interference imaging system. Background technique [0002] The basic design principle of traditional optical telescopes is still based on the principle of optical refraction, and the observed object is magnified through lens stacks. Limited by the principle of traditional optical imaging, if the optical telescope based on refraction wants to observe better, the main lens can only be made larger and bulkier. The interference imaging system is composed of a series of tiny photoelectric lens units (referred to as micromirrors) arrayed on the plane. Unlike the traditional refracting optical telescope, the interference imaging system uses the basic principle of "interferometry". The tiny optical lens array also has electronic components to participate in the analysis. The light collected by each micro lens in the array will interfere with each other, ...
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Login to View More IPC IPC(8): G01B9/06G01B9/02
CPCG01B9/02041G01B9/06
Inventor 韩春蕊齐月静王宇叶征宇
Owner INST OF MICROELECTRONICS CHINESE ACAD OF SCI