CN202583665U

CN202583665U - Lighting device for providing fill light for road monitoring

Info

Publication number: CN202583665U
Application number: CN2012201828379U
Authority: CN
Inventors: 彭小静
Original assignee: SHANGHAI LINGSHANG PHOTOELECTRIC TECHNOLOGY CO LTD
Current assignee: SHANGHAI LINGSHANG PHOTOELECTRIC TECHNOLOGY CO LTD
Priority date: 2012-04-26
Filing date: 2012-04-26
Publication date: 2012-12-05
Anticipated expiration: 2022-04-26

Abstract

The utility model provides a lighting device for providing fill light for road monitoring. A plurality of light emitting diodes are used as the light source of the lighting device, the working pulse frequency of the light emitting diodes is in the range of 60 hertz to 150 hertz, the duty ratio of the light emitting diodes is in the range of 0% to 60%. According to the utility model, advantages of energy conservation and environment protection, long service life, good color rendering property, small glare, and no light pollution are realized, and the shooting of a monitoring camera is facilitated.

Description

A kind of light fixture that is used for the road monitoring light filling

Technical field

The utility model relates to a kind of lighting device, and is particularly related to a kind of light fixture that is used for the road monitoring light filling.

Background technology

Along with developing of automobile industry, the automobile pollution of China increases year by year, to the monitoring of the vehicle particular importance that seems; Present electronic monitoring equipment each urban transportation thoroughfare that almost spreads all over the country, wherein electronic police is indispensable in transportation industry, and the auxiliary electron police to monitor the light fixture of light filling also be varied; Wherein mostly is gas lamp light fixtures such as flashlamp or Metal halogen lamp, and effect all is that wherein flashlamp was lighted in the moment of signal triggering for monitoring provides light filling to road vehicle; Provide shooting required brightness to watch-dog, though shooting effect is good, often moment brightness is excessive; The driver is easy to generate dazzle, causes the short-term of eye uncomfortable, and gas lamp light fixture light fillings such as Metal halogen lamp adopt the mode that continues illumination; At every moment can both reach and take required brightness, nor can produce driver's eyes uncomfortable, low but maximum shortcoming is exactly the effective rate of utilization of light; Need be in illumination condition always, waste energy, in addition; The response speed of flashlamp and Metal halogen lamp is all slow, can not start rapidly, and can't be applied to the pulse mode is main supervisory system.

Summary of the invention

For overcome in the prior art illuminating lamp moment brightness excessive with the low problem of the efficiency of light energy utilization, the utility model provides that a kind of brightness is suitable, the LED light fixture of energy-conserving and environment-protective.

To achieve these goals; The utility model proposes a kind of light fixture that is used for the road monitoring light filling; The light source of said light fixture is a plurality of light emitting diodes, and the pulsed frequency of said light emitting diode is 60 to 150 hertz, and the dutycycle of said light emitting diode is between 0% to 60%.

Optional, said dutycycle is 1:N, and wherein N is greater than 1 and less than 100 natural number.

Optional, said light emitting diode is positioned on the aluminium base.

Optional, said aluminium base links to each other with heat dissipation base, fixing a plurality of heat radiator on the said heat dissipation base.

Optional, said light fixture comprises supply unit, said supply unit is by coupled control panel control.

The described a kind of beneficial effect that is used for the light fixture of road monitoring light filling of the utility model mainly shows: adopt light emitting diode as light-emitting device, launch cold white light, colour temperature is gentle, and is not dazzling, and colour rendering is good, is easy to the shooting of supervising device; The pulsed frequency of light emitting diode adopts 60 to 150 hertz, and pulsed frequency is high, and human eye is difficult to discover the switch change-over of light emitting diode; The dutycycle of light emitting diode is 1:N, and wherein N is greater than 1 and less than 100 natural number, mean flow rate is the 1/N of peak brightness, can set the numerical value of N according to the road actual needs, help energy savings, reduces light pollution, improves road traffic safety.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is the sectional view of the utility model embodiment.

Embodiment

Below in conjunction with embodiment and accompanying drawing the utility model is done further to describe.

In background technology; The brightness of mentioning flashlamp moment is bright excessively, cause the automobile driver dazzle easily, and gas lamp light fixtures such as Metal halogen lamp need be grown bright; Waste energy, the utility model provides with light emitting diode (LED) and replace gas lamp light fixtures such as flashlamp and Metal halogen lamp.

Please refer to Fig. 1; Fig. 1 is the structural representation of the utility model embodiment, on scheming, can see a plurality of heat radiator 12 and heat dissipation base 11 one, and lamp protecgulum and glass 4 are fixed on the heat dissipation base 11 through nut; Heat dissipation base 11 links to each other with bonnet 3 through a card extender 2; Support is installed on heat dissipation base 11 both sides, and the simple appearance of whole device is practical, easily in the road monitoring system, uses.

LED has advantages such as luminescence efficiency height, power saving and life-span length, but single LED luminous quantity is limited, can not satisfy daily lighting demand; Need use a plurality of LED are densely arranged, this can cause heat to accumulate in a large number in the less space and can not distribute rapidly, when LED works under the very high environment of temperature together; Will wear out rapidly, make its life-span shorten greatly, please refer to Fig. 2 below; Fig. 2 is the sectional view of the utility model embodiment, and the utility model all is positioned over a plurality of LED 71 on the aluminium base 72, and said aluminium base 72 links to each other with heat dissipation base 11; The centre scribbles heat conductive silica gel; Said heat dissipation base and a plurality of heat radiator 12 one, such design has guaranteed that the utility model heat sinking function is good, the LED back local temperature too high problem that works long hours can not occur.In addition, the pulsed frequency of the light emitting diode that the utility model adopts is 60 to 150 hertz, and pulsed frequency is high, and human eye is difficult to discover the switch change-over of light emitting diode; The dutycycle of light emitting diode is 1:N, and wherein N is greater than 1 and less than 100 natural number, dutycycle is the ratio in positive pulse width and cycle; Popular saying is exactly in an illumination period, time that LED opens and the ratio of cycle length, and dutycycle is low more; The energy that illumination is consumed is just more little; The mean flow rate that illuminating lamp provided is just low more, and mean flow rate is the 1/N of peak brightness, can be according to the numerical value of actual monitored light filling requirements set N; Help energy savings, and can not make driver and pedestrian's vision produce strong light stimulus.From Fig. 2, can see; The utility model also comprises a plurality of optical device 6; Be used to adjust the light filling scope and the shooting angle of the light fixture of road monitoring light filling, the utility model also comprises a supply unit 9 and the control panel 8 that is positioned over the one of which side simultaneously, and the external interface of supply unit 9 is connected with the power supply of outside 220V; The voltage of internal interface input 44V is given control panel 8; Control panel 8 connects supply unit 9 and a plurality of LED 71, and control panel 8 is controlled the opening and closing of LED 71, thereby realizes the pulsed frequency and the dutycycle of predefined light emitting diode.

Though the utility model discloses as above with preferred embodiment, so it is not in order to limit the utility model.Has common knowledge the knowledgeable in the technical field under the utility model, in spirit that does not break away from the utility model and scope, when doing various changes and retouching.Therefore, the protection domain of the utility model is as the criterion when looking claims person of defining.

Claims

1. light fixture that is used for the road monitoring light filling, it is characterized in that: the light source of said light fixture is a plurality of light emitting diodes, and the pulsed frequency of said light emitting diode is 60 to 150 hertz, and the dutycycle of said light emitting diode is between 0% to 60%.

2. according to the said a kind of light fixture that is used for the road monitoring light filling of claim 1, it is characterized in that said dutycycle is 1:N, wherein N is greater than 1 and less than 100 natural number.

3. according to the said a kind of light fixture that is used for the road monitoring light filling of claim 1, it is characterized in that said light emitting diode is positioned on the aluminium base.

4. according to the said a kind of light fixture that is used for the road monitoring light filling of claim 3, it is characterized in that said aluminium base links to each other with heat dissipation base, fixing a plurality of heat radiator on the said heat dissipation base.

5. according to the said a kind of light fixture that is used for the road monitoring light filling of claim 1, it is characterized in that said light fixture comprises supply unit, said supply unit is by coupled control panel control.