A device for introducing parallel composite light into an optical fiber using a combination of self-focusing lenses

A technology of self-focusing lens and introducing optical fiber, which is applied in the direction of using sunlight, lighting devices, non-electric lighting devices, etc., can solve the problems of optical fiber coupling and low transmission efficiency, and achieve the effects of simple and convenient production, improved introduction rate, and shortened focal length

Active Publication Date: 2020-06-16
CHANGAN UNIV
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  • Description
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Problems solved by technology

However, the "Himanwari" system still has the problems of low fiber coupling and transmission efficiency, which are still difficult problems in the application of the entire technology

Method used

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  • A device for introducing parallel composite light into an optical fiber using a combination of self-focusing lenses
  • A device for introducing parallel composite light into an optical fiber using a combination of self-focusing lenses
  • A device for introducing parallel composite light into an optical fiber using a combination of self-focusing lenses

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Embodiment Construction

[0029] In the sunlight introduction device, in order to improve the sunlight introduction efficiency, it is necessary to consider the dispersion phenomenon of composite light and the off-axis phenomenon of sunlight.

[0030] The device provided in this embodiment, which uses self-focusing lenses to combine parallel composite light into the optical fiber, ensures that the light guide efficiency can reach 70%-80% within the range of the incident angle of sunlight of 1.2 degrees.

[0031] see figure 1 , present embodiment provides a kind of device that utilizes the parallel composite light of self-focusing lens combination to import optical fiber, wherein parallel composite light refers to general sunlight, and this device is made up of lens 1, lens group 2, self-focusing lens 3, spiral sleeve 4 and optical fiber 5, wherein, lens 1, lens group 2 and self-focusing lens 3 are connected successively and the focus is on the same straight line, lens group 2 and self-focusing lens 3 ar...

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Abstract

The invention discloses a device for guiding in an optical fiber through parallel compound light combined by a self-focusing lens. The device is composed of a lens, a lens set, the self-focusing lens, a spiral sleeve and the optical fiber. The lens, the lens set and the self-focusing lens are sequentially connected to form three levels of lenses. The focal points of all the levels of lenses are located on the same straight line. The lens set and the self-focusing lens are mounted in the spiral sleeve, and the self-focusing lens is connected with the optical fiber. The sunlight transmission efficiency of the device can reach 70% to 80%. Transmission losses caused by chromatic dispersion can be offset, chromatic dispersion is corrected, and the focal length of the overall lens set is reduced; by means of the self-focusing lens, light can enter the lens to be focused, wherein a certain angle exists between the light and the axis; and meanwhile, obtained large-density and high-energy light spots are beneficial to transmission of the optical fiber, and the sunlight guide-in rate is effectively increased.

Description

technical field [0001] The invention relates to the technical field of introducing sunlight into an optical fiber, in particular to a device for introducing parallel composite light into an optical fiber using a combination of self-focusing lenses. Background technique [0002] Sunlight introduction system has developed rapidly in the past 20 years. It is a green lighting technology, energy-saving and environmentally friendly, which is beneficial to people's physical and mental health and improves people's quality of life. A typical sunlight introduction system is mainly composed of four parts: sunlight collection device, sun tracking device, sunlight transmission device and lighting device. According to the light collection method of the collector, it is divided into reflective sunlight introduction system and transmissive sunlight introduction system. system. Among them, the reflective sunlight introduction system has the defects of large system volume, limited installati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S11/00F21V5/04H02S40/22
CPCF21S11/005F21V5/04F21V2200/17H02S40/22Y02E10/52
Inventor 李雪郑晅史芊芊
Owner CHANGAN UNIV
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