Tunnel lamp

A tunnel light and tunnel technology, applied in the field of lighting, can solve the problems of affecting the driving effect, endangering personal safety, and easily causing traffic accidents, etc., and achieve the effects of preventing optic nerve fatigue, improving driving safety, and shortening the adaptation time

Inactive Publication Date: 2014-04-02
NANTONG NEW CENTURY MECHANICAL & ELECTRICAL
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AI Technical Summary

Problems solved by technology

[0002] In order to alleviate the increasingly serious traffic pressure in cities, many cities excavate tunnels for vehicles to drive. In order to facilitate drivers to drive, a number of tunnel lights will be installed at intervals in the tunnels. However, the illuminance of existing tunnel lights remains constant. When the weather is very sunny or rainy When the weather is dark, the brightness difference between inside and outside the tunnel is large. When the driver enters or exits the tunnel, it is difficult for the eyes to adapt to this light difference in a short time. On the one hand, it is easy to cause optic nerve fatigue and affect the driving effect. Unable to adapt to brightness changes, the reaction to external things is slow, which can easily cause traffic accidents and endanger personal safety

Method used

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Embodiment Construction

[0012] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0013] Such as figure 1 As shown, the present invention provides a tunnel light, which includes a light source, an adjustable transformer, a controller and an illuminance sensor, which will be introduced separately below.

[0014] The light source is connected to an external power source (such as mains) through an adjustable transformer, and the actual luminous power of the light source can be changed through the difference in the output voltage of the adjustable transformer, so that the brightness difference inside and outside the tunnel will not be too large. Since the service life of lamps with constant output power will be severely shortened in a long-term variable voltage working environment, lamps with variable brightness can be used in this embodiment, which can withstand continuous changes in supply voltage for a long time, avoidin...

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Abstract

The invention discloses a tunnel lamp which comprises a light source, an adjustable transformer, a controller and an illumination sensor, wherein the light source is connected with an external power supply through the adjustable transformer, the illumination sensor is arranged in the position of the passageway of a tunnel, and used for transmitting sensed external illumination to the controller, and the controller is used for controlling the output voltage of the adjustable transformer according to the received illumination data, so that the difference of the illumination of the light source and the external illumination is within the range of threshold value. The tunnel lamp can reduce the difference of illumination in and out of the tunnel, the adaptation time of eyes of a driver is shortened, and the occurrence rate of traffic accidents is reduced.

Description

technical field [0001] The invention belongs to the field of lighting, in particular to a lighting fixture for road tunnels. Background technique [0002] In order to alleviate the increasingly serious traffic pressure in cities, many cities excavate tunnels for vehicles to drive. In order to facilitate drivers to drive, a number of tunnel lights will be installed at intervals in the tunnels. However, the illuminance of existing tunnel lights remains constant. When the weather is very sunny or rainy When the weather is dark, the brightness difference between inside and outside the tunnel is large. When the driver enters or exits the tunnel, it is difficult for the eyes to adapt to this light difference in a short time. On the one hand, it is easy to cause optic nerve fatigue and affect the driving effect. Unable to adapt to brightness changes, the reaction to external things becomes slow, which can easily cause traffic accidents and endanger personal safety. [0003] Base...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02
CPCY02B20/46Y02B20/40
Inventor 邵剑
Owner NANTONG NEW CENTURY MECHANICAL & ELECTRICAL
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