A device for conducting sunlight to tunnel lighting by using optical fiber

By combining the synergistic effect of the argon layer and the infrared reflective film with the design of the fiber optic components, the problems of fiber optic end aging and high tunnel energy consumption were solved, achieving low-energy, all-weather, and stable tunnel lighting, thus improving driving safety.

CN224498261UActive Publication Date: 2026-07-14SICHUAN VOCATIONAL & TECHN COLLEGE OF COMM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN VOCATIONAL & TECHN COLLEGE OF COMM
Filing Date
2025-07-02
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

When existing fiber optic light guiding technology transmits sunlight to tunnel lighting, the infrared rays carry a large amount of heat energy, which causes the fiber ends to melt and age easily, shortening their service life. At the same time, tunnel lighting consumes a lot of energy, and visual differences cause discomfort to drivers.

Method used

The argon gas layer and infrared reflective film work together to block most of the infrared radiation. The Fresnel lens and fiber optic assembly design, combined with a cleaning mechanism, protect the fiber optic ends and ensure uniform light distribution.

Benefits of technology

It extends the lifespan of optical fibers, reduces tunnel lighting energy consumption, improves driving safety and visual adaptability, and adapts to all-weather environmental changes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a device of utilize optical fiber to conduct sunlight to tunnel lighting, specifically related to tunnel lighting technical field. The device of utilize optical fiber to conduct sunlight to tunnel lighting, include: the casing, one end fixed with transparent protective cover, install a plurality of light transmission subassembly in casing interior, the light transmission subassembly includes the taper cylinder, the taper cylinder one end fixed white glass cover, the white glass cover inlays fresnel lens, and the hollow cavity of argon filling is formed to the concave surface of fresnel lens and white glass cover, be equipped with the optical fiber in the taper cylinder, and the optical fiber end is positioned in the focal point of fresnel lens through fixed sleeve, and the other end of optical fiber extends to the tunnel and is connected with concave lens, and concave lens will optical fiber transmission light divergent illumination. The device of utilize optical fiber to conduct sunlight to tunnel lighting provided by the utility model argon layer and infrared reflection film synergistic effect, block most infrared radiation, avoid the high temperature aging of optical fiber end, prolong the life.
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