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Laser uniformly dispersed multi-core transmitting optical fibre

A uniformly dispersed, single-core fiber technology, applied in the field of medical imaging, can solve problems such as damage and weak signal, and achieve the effects of uniform signal strength, avoidance of damage, and uniform laser energy

Inactive Publication Date: 2019-04-05
WUHAN ZNION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there are still some defects in the current technology. Because the laser has the characteristic of highly concentrated energy, if it is not processed in actual use, the signal collected in the receiving fiber around the transmitting fiber will be strong, while other signals will be weak. Case
In addition, if the laser with high energy concentration is mistakenly irradiated to the human eye, it may cause certain damage.

Method used

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  • Laser uniformly dispersed multi-core transmitting optical fibre

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Embodiment 1

[0020] Such as figure 1 As shown, this embodiment provides a emitting optical fiber with evenly dispersed laser light, comprising: an optical fiber input end 1, an optical fiber body 2 and an optical fiber output end 3, and the optical fiber main body 2 contains a plurality of single-core optical fibers.

[0021] As a preferred implementation of this embodiment, the optical fiber incident end 1 is provided with a concave lens array 4, the concave lens array 4 includes a plurality of concave lenses, and each concave lens is on the same center line as the corresponding single-core optical fiber , whose function is to guide the laser light into each of the single-core optical fibers in a dispersed manner.

[0022] The concave lens array 4 is installed in a plastic protective sleeve 7, and then installed on the incident end 1 of the optical fiber through the plastic protective sleeve, which can not only protect the lens array, but also play a fixed role.

[0023] As a preferred i...

Embodiment 2

[0028] Such as figure 1 As shown, this embodiment provides a multi-core optical fiber in which laser light is uniformly dispersed, and the difference from Embodiment 1 is that a frosted layer is also provided inside the optical fiber.

[0029] As a preferred implementation of this embodiment, the inner surface of each single-core optical fiber body is provided with a frosted layer 6, whose function is to cause diffuse reflection of the laser light when propagating in multiple single-core optical fibers, thereby dispersing the energy of the laser light;

[0030] As a preferred implementation of this embodiment, the optical fiber body 2 sequentially includes: a central strengthening element, a single-core optical fiber, an aramid yarn strengthening element and a sheath from the center to the outside;

[0031] The central strengthening element is a non-metallic element, and its function is to prevent each single-core optical fiber from rubbing against each other and prolong the s...

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Abstract

The invention discloses a laser uniformly dispersed multi-core transmitting optical fibre. The optical fibre comprises an optical fibre incident end, an optical fibre body and an optical fibre exit end; the optical fibre incident end is provided with a concave lens array; the array comprises multiple concave lenses; the optical fibre body comprises multiple single-core optical fibres therein; furthermore, the inside surface of each single-core optical fibre is provided with a frosted layer; and multiple collimating lenses are arranged on the optical fibre exit end. According to the laser uniformly dispersed multi-core transmitting optical fibre disclosed by the invention, the laser energy is further dispersed by increasing the fibre core number of an optical fibre; therefore, the strengthof a signal acquired by a receiving optical fibre is relatively uniform; and furthermore, possible damage to human eyes due to accidental transmitting of laser can be avoided.

Description

technical field [0001] The invention relates to the field of medical imaging, in particular to a multi-core emitting optical fiber with uniformly dispersed laser light. Background technique [0002] With the development of near-infrared spectral imaging technology, medical research on near-infrared spectral imaging systems has also achieved a certain degree of breakthrough, and various non-invasive or less invasive techniques for measuring the structure and function of living human brains have been born. , most of which can display the measurement results in the form of images, and these technologies are collectively referred to as brain imaging technologies. [0003] At present, the brain functional imaging technology that neuroscientists generally pay attention to is fiber-optic brain functional imaging technology, which emits one or more laser beams through the emitting fiber and diffuses back through the cerebral cortex, and then collects the information inside the brain...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/10
CPCG02B27/108
Inventor 孙聪陈志文
Owner WUHAN ZNION TECH CO LTD
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