CN201106812Y

CN201106812Y - LED tube

Info

Publication number: CN201106812Y
Application number: CNU2007201507610U
Authority: CN
Inventors: 吕晓峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-09-17
Filing date: 2007-09-17
Publication date: 2008-08-27
Anticipated expiration: 2017-09-17

Abstract

The utility model relates to an LED lighting tube. The optical axes of an LED and a light source reflector of the LED are parallel to the center line of a translucent tube. The LED light source of the lighting tube is arranged at any one end of the lighting tube, and can also be arranged at both sides of the lighting tube at the same time. By selecting the LED light source reflector with a suitable angle to project light towards the other end of the tube, the projected light can be dispersed little by little, and the light can be evenly projected to the inner wall of the translucent tube and radiates to the surroundings via the translucent tube wall. The purpose of less high-power LEDs producing evenly the lightening LED lighting tube can be realized so as to considerably reduce the cost. The LED lighting tube can be used for making the city brighter and illuminating the courtyard, and can be used as decorative lighting locations such as the street and the courtyard, etc.

Description

A kind of LED fluorescent tube

Technical field

The present invention relates to a kind of is the fluorescent tube of light source with LED, and the light that it can send the LED that is arranged on lamp tube ends is invested the inwall of whole translucent tube, sees through inwall again and outwards evenly disperses.

Background technology

Existing cylindricality or tubular LED lamp, the optical axis of its LED and fluorescent tube axis are orthogonal.Because a plurality of low-power LEDs in the LED fluorescent tube are arranged in a row or plurality of rows, are placed in the milky translucent lampshade, form luminous uniform LED fluorescent tube.The deficiency of this kind fluorescent tube is to have dead angle, and the brightness irregularities on the fluorescent tube can not satisfy the place of all lighting around some needs, has both made employing, and cost also can be multiplied.If the low-power LED in the fluorescent tube is replaced with great power LED, because power is bigger, arrange that closeer then cost is higher, heat also is difficult to shed, therefore, and when adopting great power LED, between adjacent LED enough gaps must be arranged, guaranteeing that heat radiation is good and to reduce cost, and excesssive gap can make the lighting tube brightness light and shade inhomogeneous, influences attractive in appearance.In some view garden lamp application places, the light source in many lampposts mostly is the fluorescent tube light source greatly, and power contains ballast power about 50W generally all at 40W.Because the straight tube fluorescent lamp life-span is shorter in the lamppost, and change difficulty, therefore straight tube fluorescent lamp all is replaced by the electricity-saving lamp of power about 10W in many application units, after the electricity-saving lamp light source is installed, make lamppost brighter near the position at light source place, very dark away from the position at light source place, though energy-conservation, but efficient is not high, influences attractive in appearance.

Technology contents

Brightness disproportionation, the heat that occurs when being used for fluorescent tube, lamp tube or lamppost (hereinafter to be referred as fluorescent tube) in order to overcome great power LED is difficult to shed and the problem of the high deficiency of cost.It is the fluorescent tube of light source with the great power LED that the utility model provides a kind of, the led light source of this fluorescent tube is arranged on any end of fluorescent tube, also can be arranged on the two ends of fluorescent tube simultaneously, led light source reflector by selecting proper angle or parabolic LED reflector or condenser are to other end light projector, the light that penetrates scatters gradually, make the light inwall of directive translucent tube comparatively equably, see through the radiation towards periphery of translucent tube wall again, so just can realize producing the LED fluorescent tube of uniformly light-emitting, reach the effect of getting twice the result with half the effort with less great power LED.

For achieving the above object, described LED fluorescent tube is that any one or both ends that led light source is arranged on fluorescent tube are provided with simultaneously, install the led light source reflector additional on LED, make the optical axis of led light source reflector parallel with the fluorescent tube center line, light is invested the other end by an end; One end of described LED fluorescent tube is provided with LED, and to other end light projector, light beam is very long to scatter light, equably each position of directive fluorescent tube by paraboloid or condenser; The described LED fluorescent tube other end is provided with a plane mirror, in the light reflected back fluorescent tube that projection is come, to reduce the difference in brightness at two ends; Described LED fluorescent tube adopts the mode of two ends correlation, to improve the brightness and the uniformity of fluorescent tube.Because the light of led light source reflector output has certain angle, light beam is very long in the process of projection scatters, each position of directive fluorescent tube equably, and it is luminous to make that milky fluorescent tube or translucent fluorescent tube can be illuminated equably.The cross section of translucent tube can be circular, square or other shapes.

The utility model has the advantages that: can make LED fluorescent tube uniformly light-emitting around straight-pipe fluorescent lamp or even brightness lamp tube, lamppost.It not only can save electric energy, has also prolonged the life-span of light source greatly, has therefore greatly reduced cost.

Description of drawings

Fig. 1 is the vertical section structural map of first embodiment of the utility model;

Fig. 2 is the vertical section structural map of second embodiment of the utility model;

Fig. 3 is the vertical section structural map of the 3rd embodiment of the utility model;

Fig. 4 is the vertical section structural map of the 4th embodiment of the utility model;

1. translucent tubes among the figure, 2. metal fixing, 3.LED light source, 4.LED light source reflector, 5. reflective mirror.

The specific embodiment

In embodiment illustrated in fig. 1, be fixed with metal fixing 2 at translucent tube 1 two ends, the inboard of metal fixing 2 closely is connected with the back side of led light source 3, and the positive light-emitting area of led light source 3 is connected with led light source reflector 4.The heat that is produced during high-power LED light source 3 work sheds by the metal fixing 2 at translucent tube 1 two ends.The light that high-power LED light source 3 sends is invested translucent tube 1 by led light source reflector 4.Owing to the angle of radiation of the most of light beam that passes through led light source reflector 4 is very little, make significantly to reduce near the light source place with away from the illumination difference on the translucent tube 1 at light source place, make the brightness on the translucent tube 1 even.The light projector modular construction at translucent tube 1 two ends is identical, forms correlation, makes translucent tube 1 luminous more equably.

In embodiment illustrated in fig. 2, end at translucent tube 1 is fixed with metal fixing 2, the inboard of metal fixing 2 closely is connected with the back side of led light source 3, the positive light-emitting area of led light source 3 is connected with led light source reflector 4, the other end at translucent tube 1 is fixed with plane mirror 5, and the heat that is produced during high-power LED light source 3 work sheds by the metal fixing 2 that is attached thereto.The light that high-power LED light source 3 sends is invested translucent tube 1 and plane mirror 5 by led light source reflector 4.Owing to the angle of radiation of the most of light beam that passes through led light source reflector 4 is very little, make significantly to reduce near the light source place with away from the illumination difference on the translucent tube 1 at light source place, make the brightness on the translucent tube 1 even.And the feasible translucent tube 1 away from the light source place of the reverberation of plane mirror 5 obtains certain illuminance compensation.

In embodiment illustrated in fig. 3, led light source 3 is to be made up of one group of great power LED.End at translucent tube 1 is fixed with metal fixing 2, and the inboard of metal fixing 2 closely is connected with the back side of led light source 3, and the positive light-emitting area of led light source 3 is connected with led light source reflector 4, is fixed with plane mirror 5 at the other end of translucent tube 1.The heat that is produced during high-power LED light source 3 work sheds by the metal fixing 2 that is attached thereto.The light that high-power LED light source 3 sends is invested translucent tube 1 and plane mirror 5 by led light source reflector 4.Owing to the angle of radiation of the most of light beam that passes through led light source reflector 4 is very little, significantly reduce near the light source place with away from the illumination difference on the translucent tube 1 at light source place, make that the brightness on the translucent tube is even, and the feasible translucent tube 1 away from the light source place of the reverberation of plane mirror 5 obtains certain illuminance compensation.

In embodiment illustrated in fig. 4, led light source 3 is to be made up of one group of great power LED.Be fixed with metal fixing 2 at translucent tube 1 two ends, the inboard of metal fixing 2 closely is connected with the back side of led light source 3, and the positive light-emitting area of led light source 3 is connected with led light source reflector 4.The heat that is produced during high-power LED light source 3 work sheds by the metal fixing 2 at translucent tube 1 two ends.The light that high-power LED light source 3 sends is invested translucent tube 1 by led light source reflector 4.Owing to the angle of radiation of the most of light beam that passes through led light source reflector 4 is very little, make significantly to reduce near the light source place with away from the illumination difference on the translucent tube 1 at light source place, make that the brightness on the translucent tube 1 is even.Translucent tube about in the of 1 the light projector modular construction at two ends identical, form correlation, make translucent tube 1 luminous more equably.

Claims

1. LED fluorescent tube, comprise translucent tube (1), metal fixing (2), led light source (3), led light source reflector (4) and reflective mirror (5) composition, it is characterized in that: led light source (3) is parallel with the center line of translucent tube (1) with the optical axis of led light source reflector (4).

2. a kind of LED fluorescent tube according to claim 1, it is characterized in that: be fixed with metal fixing (2) at translucent tube (1) two ends, the inboard of metal fixing (2) closely is connected with the back side of led light source (3), and the positive light-emitting area of led light source (3) is connected with led light source reflector (4).

3. a kind of LED fluorescent tube according to claim 1, it is characterized in that: the end at translucent tube (1) is fixed with metal fixing (2), the inboard of metal fixing (2) closely is connected with the back side of led light source (3), the positive light-emitting area of led light source (3) be connected with led light source reflector (4), be fixed with plane mirror (5) at the other end of translucent tube (1).

4. a kind of LED fluorescent tube according to claim 1, it is characterized in that: led light source (3) is to be made up of one group of great power LED, end at translucent tube (1) is fixed with metal fixing (2), the inboard of metal fixing (2) closely is connected with the back side of led light source (3), the positive light-emitting area of led light source (3) is connected with led light source reflector (4), is fixed with plane mirror (5) at the other end of translucent tube (1).

5. a kind of LED fluorescent tube according to claim 1, it is characterized in that: led light source (3) is to be made up of one group of great power LED, be fixed with metal fixing (2) at translucent tube (1) two ends, the inboard of metal fixing (2) closely is connected with the back side of led light source (3), and the positive light-emitting area of led light source (3) is connected with led light source reflector (4).