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CN-122015028-A - Large-view-field sunlight receiving and conducting system

CN122015028ACN 122015028 ACN122015028 ACN 122015028ACN-122015028-A

Abstract

The invention discloses a large-view-field sunlight receiving and conducting system, and relates to the technical field of sunlight receiving and conducting. The system is formed by modularized cascading amplification of a plurality of independent light gathering devices, each independent light gathering device comprises a protective cover, a lens array and an optical fiber array, the lens array and the optical fiber array are sequentially overlapped and arranged inside the protective cover from top to bottom, and the system further comprises a light splitting device formed by light transmission optical fibers and used for carrying out disorder rearrangement on optical fiber bundles from the plurality of independent light gathering devices to achieve optical fiber disorder even output. According to the invention, large-view-field sunlight collection is realized through modularized cascading amplification, the damage of strong light to devices is reduced through a split pupil design, the efficiency is improved through optical fiber array coupling, and the output light intensity is uniform through optical fiber disordered rearrangement, so that the light-collecting energy of the optical fibers can be effectively improved, the damage of end faces is reduced, and the light-collecting device is suitable for various scenes such as indoor illumination, agricultural light supplement and the like.

Inventors

  • YAN YUNXIANG
  • SUN WEIMIN
  • QIN ZIXIN
  • Zhu Longfa
  • ZHOU JIAYI
  • YAN QI
  • GENG TAO

Assignees

  • 哈尔滨工程大学

Dates

Publication Date
20260512
Application Date
20230809

Claims (10)

  1. 1. The large-view-field sunlight receiving and conducting system is characterized by comprising a plurality of independent light gathering devices (21) in a modularized cascading amplification mode and is used for realizing sunlight collection with a larger view field; Each independent light condensing device (21) comprises a protective cover (10), a lens (11), a lens array (12) and an optical fiber array (13), and the lens (11), the lens array (12) and the optical fiber array (13) are sequentially overlapped and arranged in the protective cover (10) from top to bottom; The system also comprises a light splitting device, wherein the light splitting device consists of light transmission optical fibers (24) and is used for carrying out disorder rearrangement on optical fiber bundles from a plurality of independent light gathering devices (21) so as to realize the even output of the optical fibers in disorder.
  2. 2. A large field of view sunlight receiving and conducting system as claimed in claim 1 wherein a plurality of said individual concentrating devices (21) are equidistantly spaced.
  3. 3. A large field of view solar light receiving and conducting system according to claim 1, characterized in that the light transmitting fibers (24) are transmitted in an out of order beam splitting combined arrangement.
  4. 4. A large field of view solar light receiving and conducting system according to claim 1, characterized in that the light transmitting fibers (24) are transmitted in an out of order beam splitting combined arrangement.
  5. 5. The large field sunlight receiving and transmitting system according to claim 4 wherein the optical fiber is an illumination optical fiber with high efficiency in visible light band and high infrared loss, or an agricultural light supplementing optical fiber with low loss in yellow-green light band.
  6. 6. A large field of view sunlight receiving and transmitting system as defined in claim 1 wherein each of said independent light gathering means (21) is a fresnel lens for gathering light from multiple directions and angles at the light guiding end of the optical fiber.
  7. 7. A large field of view sunlight receiving and conducting system according to claim 1, characterized in that in each of said independent light collecting means (21), said lenses (11) and lens array (12) constitute a split pupil imaging system for dividing incident sunlight rays into multiple parts and coupling them into an optical fiber array (13) respectively.
  8. 8. A large field of view solar light receiving and conducting system according to claim 7, characterized in that the lens array (12) is of hexagonal design.
  9. 9. A large field of view sunlight receiving and transmitting system as defined in claim 1 wherein the overall dimensions of the end faces of said fiber array (13) are greater than the equivalent field of view of the sun on the ground, leaving a margin for tracking errors during tracking of the aiming of the sun.
  10. 10. A large field of view sunlight receiving and transmitting system as defined in claim 1 further comprising a transmission means comprising a concentrator cable (22) and a cable splitting means (23) for converging and transmitting light collected by the plurality of individual concentrators (21).

Description

Large-view-field sunlight receiving and conducting system Technical Field The invention belongs to the technical field of sunlight receiving and conducting, and particularly relates to a large-view-field sunlight receiving and conducting system. Background In order to reduce illumination energy consumption and improve illumination environment, a great deal of research is carried out by a plurality of illumination workers at home and abroad in recent years, and a plurality of sunlight guiding and transmitting methods and concepts are proposed. The following methods are mainly included: 1. the method has obvious effect on improving the uniformity of the lighting of the side window, but serious light pollution; 2. The light pipe method is that the light collected by the solar light collector is transmitted to the place where the indoor lighting is needed by the light pipe, but the light pipe method has lower transmission efficiency to the sunlight and low price, and is suitable for short-distance light guiding illumination; 3. the optical fiber method combines a series of technologies such as sun tracking, lens focusing and the like, greatly improves the brightness of the sun light at a focus, and leads the light to a place needing lighting through the optical fiber with high light transmittance. However, the sunlight guiding has low sunlight coupling efficiency, limited light energy density, The receiver is easy to damage, the receiving visual field is limited, the visual field is difficult to increase, the light intensity distribution of the light environment at the tail end is uneven, and the like, so that the receiver has room for improvement. Disclosure of Invention The invention aims to solve the defects in the prior art, and provides a large-view-field sunlight receiving and conducting system. The light-emitting end has the advantages of realizing large caliber, large view field, increasing total transmission amount, reducing harmful components, reducing maintenance cost, enabling the light-emitting end to illuminate uniformly, effectively improving the light-gathering energy of the optical fiber, reducing the end face damage of the optical fiber, and enabling light to finally enter a single energy-transmitting optical fiber so as to conveniently transmit the light to a corresponding place. In order to solve the technical problems, the specific technical scheme of the invention is as follows: In some embodiments of the present application, a large field of view sunlight receiving and conducting system is provided, consisting of a plurality of independent concentrating devices in modular cascading amplifications, for achieving larger field of view sunlight collection; each independent condensing device comprises a protective cover, a lens array and an optical fiber array, wherein the lens, the lens array and the optical fiber array are sequentially overlapped and arranged in the protective cover from top to bottom; the system also comprises a light splitting device, wherein the light splitting device consists of light transmission optical fibers and is used for carrying out disorder rearrangement on optical fiber bundles from a plurality of independent light gathering devices so as to realize disorder and uniform output of the optical fibers. In some embodiments of the present application, the plurality of independent light gathering devices are distributed equidistantly. In some embodiments of the present application, the optical transmission fibers are transmitted in an out-of-order beam splitting type combination arrangement. In some embodiments of the present application, the optical fibers in the optical fiber array select optical fibers with different band transmission characteristics according to application scenarios. In some embodiments of the present application, the optical fiber is an illumination optical fiber with high efficiency in the visible light band and high ultraviolet-infrared loss, or an agricultural light supplementing optical fiber with low loss in the yellow-green light band. In some embodiments of the present application, in each of the independent light condensing devices, the lens is a fresnel lens, and is configured to condense light beams with multiple directions and multiple angles at a light guiding end of the optical fiber. In some embodiments of the present application, in each of the independent light gathering devices, the lens and the lens array form a split pupil imaging system for splitting incident sunlight into multiple parts and coupling into the fiber array respectively. In some embodiments of the application, the lens array is of hexagonal design. In some embodiments of the present application, the overall dimension of the end face of the optical fiber array is larger than the equivalent field of view of the sun on the ground, thereby leaving a margin of tracking error for the sun in the tracking process. In some embodiments of the present application, the opt