CN103383078A - A kind of LED lamp - Google Patents

Abstract

The application proposes a LED lamp comprising: the substrate is provided with an extending structure along the extending direction of the LED lamp tube, the extending structure is provided with a protrusion with a triangular or V-shaped section, and the LED lamp strip is attached to the inclined planes at the two sides of the protrusion so as to form two light-emitting surfaces; the reflector is provided with an extending structure along the extending direction of the LED lamp tube, and the cross section of the extending structure is two domes which are connected side by side and provided with openings at the bottom ends; the reflector is connected with the protrusions of the substrate through the connecting end of the dome, the opening of the dome faces the light emitting surface, each light emitting surface is located in the enclosure of one dome, and the area of the opening of each dome is larger than that of the light emitting surface; the light rays of each light emitting surface irradiate the corresponding inner wall of the dome, are reflected by the inner wall of the dome and are emitted from the part, which is not shielded by the light emitting surface, in the opening of the dome. By the application, the light control efficiency can be effectively improved, and glare is avoided.

Description

A kind of LED lamp

technical field

The present application relates to the lighting field, in particular to an LED lamp.

Background technique

The existing LED lamps, as shown in FIG. 1 , include: a substrate 11 , a heat sink 12 , and an LED strip 14 . Wherein, the LED strip 14 (the position of point O) is placed on the substrate. The discharge of the LED strip 14 is sequentially discharged along with the extension structure of the substrate 11 (the position between point C and point D), and the LED strip 14 is placed on a 180-degree plane to be discharged, so the released light angle is the largest Form 180 degrees. Apparently, the light-emitting range of the LED light strip 14 is limited by the planar design of the LED light tube, which limits the light-emitting area.

Moreover, the setting of the prior art cannot avoid the glare caused by the direct light of the LED strip. Then, in order to avoid glare, a corresponding lampshade 13 is placed on the LED strip. However, the lampshade does directly affect the luminous effect of the LED strip.

Contents of the invention

The main purpose of this application is to provide an LED lamp to solve the problems existing in the prior art, including: LED lamp tubes and reflectors, wherein the LED lamp tubes further include: a substrate and an LED strip, and the substrate There is an extension structure along the extension direction of the LED light tube, the extension structure has a triangular or V-shaped protrusion in section, the bottom surface of the extension structure has a planar structure, and the LED light strip is attached to the Two light-emitting surfaces are formed on the slopes on both sides of the protrusion, and the light-emitting angle formed by the combination of the two light-emitting surfaces is greater than 180 degrees; the reflector has an extension structure along the extending direction of the LED lamp tube, and the The cross-section of the extension structure is two domes connected side by side, and the bottom end of the dome has an opening; the reflector is connected to the protrusion of the substrate through the connected end of the dome and the opening of the dome faces the Each light-emitting surface is respectively located in a dome, and the opening area of the dome is larger than the area of the light-emitting surface; the light from each light-emitting surface is directed to the corresponding inner wall of the dome, reflected by the inner wall of the dome, and is reflected by the inner wall of the dome. The part of the opening of the dome that is not blocked by the light-emitting surface emits light.

Further, the protrusion has a hollow structure so as to form a ventilation and heat dissipation channel.

Further, it also includes: a heat dissipation profile installed on the bottom surface of the extension structure, and the shape of the heat dissipation profile is adapted to the outline of the LED light tube.

Further, it also includes: a lamp housing, wherein the lamp housing is fastened and fixed on the reflector by the back side of the dome, and the wall of the lamp housing is formed by the side of the opening of the anti-dome protruding, the base plate is fixed to the protruding wall surface of the lamp housing.

Further, the LED strips are arranged on the slopes on both sides of the extension structure along the extension direction of the lamp, and the LED strips are arranged on the central axis of the slope along the extension direction of the lamp.

Further, the reflector is fixed to the apex of the protrusion of the substrate through the connecting end of the dome.

Further, the two light-emitting surfaces have an included angle, and the included angle is a vertex of the triangle or V shape.

The main purpose of this application is to provide an LED lamp, including: a lamp housing, an LED lamp tube, and a reflector, wherein the LED lamp tube further includes: a substrate and an LED strip, and the substrate extends along the LED lamp strip. The extension direction of the pipe has an extension structure, the extension structure has a triangular or V-shaped bulge, the bottom surface of the extension structure has a planar structure, and the LED strip is attached to the sides of the bulge. Two light-emitting surfaces are formed on the slope, and the light-emitting angle formed by the combination of the two light-emitting surfaces is greater than 180 degrees; the reflector has an extension structure along the extension direction of the LED lamp tube, and the cross-section of the extension structure It is two domes connected side by side. The bottom of the dome has an opening; The side of the opening of the anti-dome protrudes, and the base plate is fixed to the wall surface protruding from the lamp housing through the position of the central axis of the extension structure, so that the base plate is rotated and fixed around the central axis, and the protrusion of the base plate It is opposite to the connecting end of the dome of the reflector and separated by a certain distance, and the opening of the dome faces the light-emitting surface, and each light-emitting surface is respectively located in a dome, and the opening area of the dome is larger than the light-emitting surface. Area; the light from each light-emitting surface strikes the corresponding inner wall of the dome, is reflected by the inner wall of the dome, and is emitted from the part of the opening of the dome that is not blocked by the light-emitting surface.

Further, the protrusion has a hollow structure so as to form a ventilation and heat dissipation channel.

Further, it also includes: a heat dissipation profile installed on the bottom surface of the extension structure, and the shape of the heat dissipation profile is adapted to the outline of the LED light tube.

Further, the LED strips are arranged on the slopes on both sides of the extension structure along the extension direction of the lamp, and the LED strips are arranged on the central axis of the slope along the extension direction of the lamp.

Further, the connecting end of the dome is opposite to the apex of the protrusion of the base plate.

Further, the two light-emitting surfaces have an included angle, and the included angle is a vertex of the triangle or V shape.

The main purpose of this application is to provide an LED lamp, including: an LED lamp tube and a reflector, wherein the LED lamp tube further includes: a substrate and an LED strip, the substrate has a planar structure, and the LED The light strip is fixed on both sides of the central axis of the substrate along the extension direction of the lamp to form two light-emitting surfaces; the reflector has an extension structure along the extension direction of the LED lamp tube, and the extension structure The cross-section is two domes connected side by side, the bottom end of the dome has an opening; the reflector is connected to the substrate through the connected end of the dome and the opening of the dome faces the light-emitting surface, and each light-emitting The surfaces are respectively located in a dome, and the opening area of the dome is larger than the area of the light-emitting surface; the light from each light-emitting surface is directed to the corresponding inner wall of the dome, reflected by the inner wall of the dome and emitted from the opening of the dome. The part blocked by the light-emitting surface is emitted.

Further, it also includes: a lamp housing, wherein the lamp housing is fastened and fixed on the reflector by the back side of the dome, and the wall of the lamp housing is formed by the side of the opening of the anti-dome protruding, the base plate is fixed to the protruding wall surface of the lamp housing.

Further, it also includes: a heat dissipation profile, installed on the side of the substrate away from the light-emitting surface, and the outer contour of the heat dissipation profile is adapted to the contour of the LED lamp tube.

Further, the LED strips are arranged along the extending direction of the lamps on both sides of the central axis.

Further, the position of the reflector is fixed to the central axis of the substrate through the connecting end of the dome.

The main purpose of the present application is to provide an LED lamp, including: a lamp housing, an LED lamp tube, and a reflector, wherein the LED lamp tube further includes: a substrate and an LED lamp strip, the substrate has a planar structure, The LED light strip is fixed on both sides of the central axis of the substrate along the extension direction of the lamp to form two light-emitting surfaces; the reflector has an extension structure along the extension direction of the LED lamp tube, and the The cross-section of the extension structure is two domes connected side by side, and the bottom end of the dome has an opening; The wall surface of the dome protrudes from the side of the opening of the dome, and the base plate is fixed to the wall surface protruding from the lamp housing through the position of the central axis of the extension structure so that the base plate is rotated and fixed around the central axis. The base plate is opposite to the connecting end of the dome of the reflector and separated by a certain distance, and the opening of the dome faces the light-emitting surface, and each light-emitting surface is respectively located in a dome, and the opening area of the dome is larger than the light-emitting surface. surface area; light from each light-emitting surface strikes the corresponding inner wall of the dome, is reflected by the inner wall of the dome, and is emitted from the part of the opening of the dome that is not blocked by the light-emitting surface.

Further, it also includes: a heat dissipation profile, installed on the side of the substrate away from the light-emitting surface, and the outer contour of the heat dissipation profile is adapted to the contour of the LED lamp tube.

Further, the LED strips are arranged along the extending direction of the lamps on both sides of the central axis.

Further, the connecting end of the dome is opposite to the central axis of the base plate.

Compared with the prior art, the present application has the following remarkable effects:

1) By setting the reflector in the extending direction of the LED light tube, the problem of glare caused by the direct light of the LED light strip in the prior art can be effectively avoided.

2) It is set by the installed reflector, which can effectively adjust and distribute the light effect range of the LED light strip output, and improve the light control efficiency.

3) By arranging and setting the LED light strips, no lampshade is needed, so as to avoid the reduction of luminous efficiency and save cost resources at the same time.

Description of drawings

The drawings described here are used to provide a further understanding of the application and constitute a part of the application. The schematic embodiments and descriptions of the application are used to explain the application and do not constitute an improper limitation to the application. In the attached picture:

FIG. 1 is a schematic diagram of an LED lamp in the prior art;

Fig. 2 is a cross-sectional view of an LED lamp along the extending direction of the LED lamp tube according to Embodiment 1 of the present application;

Fig. 3 is a perspective view of the LED lamp shown in Fig. 2;

Fig. 4 is a three-dimensional assembly view of the LED lamp shown in Figs. 2 and 3;

5 is a cross-sectional view of another LED lamp along the extending direction of the LED lamp tube according to Embodiment 1 of the present application;

Fig. 6 is a perspective view of the LED lamp shown in Fig. 5;

Fig. 7 is a three-dimensional assembly view of the LED lamp shown in Figs. 5 and 6;

Fig. 8 is a cross-sectional view of an LED lamp along the extending direction of the LED lamp tube according to Embodiment 2 of the present application;

Fig. 9 is a perspective view of the LED lamp shown in Fig. 8;

Fig. 10 is a three-dimensional assembly view of the LED lamp shown in Figs. 8 and 9;

Fig. 11 is a cross-sectional view of another LED lamp along the extending direction of the LED lamp tube according to Embodiment 2 of the present application;

Fig. 12 is a perspective view of the LED lamp shown in Fig. 11;

Fig. 13 is a three-dimensional assembly view of the LED lamp shown in Figs. 11 and 12 .

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Embodiment one:

As shown in FIGS. 2-7 , according to an embodiment of the present application, an LED lamp is provided, including: an LED lamp housing 25 , an LED lamp tube and a reflector 21 .

LED light tube

As shown in Figures 2-7, the LED light tube further includes: a substrate 22 represented by CO and DO, an LED strip 23 represented by points A and B, and the substrate 22 runs along the LED lamp. The extension direction of the pipe has an extension structure (that is, the part of COD extending along the extension direction of the reflector 21 in FIG. The bottom surface of the extension structure has a planar structure, and the LED strip 23 is attached to the slopes on both sides of the protrusion (that is, the slope shown by CO and the slope shown by DO) to form two light-emitting surface, the light output angle formed by the combination of the two light output surfaces is greater than 180 degrees (reciprocal angle COD). As shown in Fig. 2-7, it solves the limitation of the scope limited to the emission of planar light, so that it can realize multi-angle light emission adjustment. The extension structure of the substrate 22 along the extension direction of the LED lamp tube is improved.

As shown in Figures 2-7, the base plate 22 has an extension structure along the extension direction of the LED lamp tube, and the extension structure has a triangular or V-shaped protrusion setting (by COD, with O as the extension direction of the middle axis), and the bottom surface of the extension structure has a planar structure. The design here can effectively solve the problem that the LED light tube is only limited to the scope of plane projection and mapping light. Secondly, the LED light strip 23 is attached to the slopes on both sides of the protrusion to form two light-emitting surfaces (that is, the slope on which CO is located and the slope on which DO is located); It is not limited to discharge on the plane of the substrate 22, but is discharged on both sides of the protrusion with a triangular or V-shaped cross section, that is, the slope where CO is located and the slope where DO is located, thus forming two light-emitting surfaces, and The two light emitting surfaces have an included angle, and the included angle is an apex angle of the triangle or V shape. Based on this, the luminous angle formed by the combination of the two light-emitting surfaces is the reflex angle corresponding to the vertex angle, and the reflex angle is larger than 180 degrees, and the coverage area is larger.

reflector 21

The installation of the reflector 21 in this application effectively avoids the problems of glare and uneven luminous efficiency of output light from LED strips in the prior art shown in FIG. 1 , and is also the core of this application. As shown in Figures 2-7, the reflector 21 has an extension structure along the extension direction of the LED lamp tube, and the cross section of the extension structure is two domes connected side by side (that is, the convex part of the reflector). The bottom end of the dome has an opening. And the opening of the dome faces the light-emitting surface, and each light-emitting surface is respectively located in a dome (the dome is an inverted parabola to include all the light-emitting surfaces), and the opening area of the dome is larger than the area of the light-emitting surface; each The light from the light-emitting surface strikes the corresponding inner wall of the dome, is reflected by the inner wall of the dome, and exits from the part of the opening of the dome that is not blocked by the light-emitting surface.

LED light housing 25

There are two connection relationships between the LED lamp housing 25, the reflector 21 and the LED lamp tube:

1) As shown in Figures 2, 3 and 4, the LED lamp housing 25 is buckled and fixed on the reflector 21 by the back side cover of the dome, and the wall surface of the LED lamp housing 25 is formed by the The side of the opening of the anti-dome protrudes, and the base plate 22 is fixed to the wall surface protruding from the LED lamp housing through the position of the central axis of the extension structure so that the base plate is rotated and fixed around the central axis, and the dome The opening of the base plate 22 faces the light-emitting surface, and the protrusion (preferably the apex position) of the substrate 22 corresponds to the connecting end of the dome of the reflector 21 and is separated by a certain distance, specifically, it is the same as the protrusion of the base plate 22. The starting vertex positions (at point O) are separated by a certain distance. The setting of the distance is related to the height of the dome, the width of the part of the opening of the dome that is not blocked by the light-emitting surface, and the width of the substrate 22 (distance between CDs). On the one hand, it can ensure that the LED The lamp tube rotates along the central axis so that the surface affixed with the LED light strip 23 can be turned downward to facilitate the loading and unloading of the LED light strip 23. The opening formed by the distance is emitted to the reflector 21 on the other side, and after 1-2 times of reflection, it is emitted from the part of the opening of the dome on this side that is not blocked by the light-emitting surface.

2) As shown in Figures 5, 6 and 7, the LED lamp housing 25 is buckled and fixed on the reflector 21 by the back cover of the dome, and the wall surface of the LED lamp housing 25 is formed by the The side of the opening of the anti-dome protrudes, the substrate 22 is fixed to the protruding wall of the LED lamp housing, and the reflector 21 is connected to the protrusion (preferably the apex position) of the substrate through the connecting end of the dome And the opening of the dome faces the light-emitting surface. In this way, each light emitting surface of the LED light strip 23 is respectively located in a dome, and the opening area of the dome is larger than the surface area of the LED light strip 23 . When the light from the light-emitting surface strikes the corresponding inner wall of the dome, the light will be emitted from the part of the opening of the dome that is not blocked by the light-emitting surface. That is, two light-emitting surfaces are formed, and the reflectors 21 corresponding to the two light-emitting surfaces are respectively arranged to adjust and distribute the luminous effect of the LED strip 23 .

The light emitted from the LED light strip 23 is reflected by the reflector 21 and emitted downward. The reflection has a soft light effect, which can effectively avoid glare and obtain more uniform light output.

As shown in Figures 2-7, it also includes: a heat dissipation profile 24 shown by CED, which is installed on the bottom surface of the extension structure (CD is shown as the bottom surface of the substrate), and the shape of the heat dissipation profile 24 is consistent with the outline of the LED lamp tube adapt. Furthermore, the extended structure shown in Fig. 2-7 has a triangular or V-shaped raised structure in section, and the raised structure has a hollow structure to form a ventilation and heat dissipation channel; the heat dissipation profile 24 Combined with the extended structure and the naturally formed ventilation and heat dissipation channels, the two-way heat dissipation method is effectively realized to extend the service life of the LED lamp.

For an LED lamp proposed in this application, in order to make the LED lamp strip produce the best luminous effect, preferably, the LED lamp strip 23 is arranged along the extending direction of the lamp on the slopes on both sides of the extension structure, so that The LED strip 23 is arranged on the central axis of the slope along the extension direction of the lamp. However, the present application is not limited to the arrangement of the LED strips 23 .

Embodiment two:

As shown in FIGS. 8-13 , the present application proposes another LED lamp, including: an LED lamp housing 45 , an LED lamp tube and a reflector 41 .

LED light tube

The LED light tube further includes: a base plate 42 (position between C and D) and an LED strip 43 (position between A and B), the base plate 42 has a planar structure, and the LED strip 43 is fixed on Two sides of the central axis of the substrate 42 along the extension direction of the lamp form two light-emitting surfaces (CO and DO form two light-emitting surfaces). Since the LED light strips of the existing LED light tubes are installed directly perpendicular to the substrate plane, in order to save resources and make the best use of the LED light strip’s luminous effect, the LED light strips are arranged on two light-emitting surfaces, that is, the LED The light strips are fixed on both sides of the central axis of the substrate along the extension direction of the lamp so as to form two light-emitting surfaces.

reflector 41

The installation of the reflector 41 in this application effectively avoids the problems of glare and uneven luminous efficiency of output light from LED strips in the prior art shown in FIG. 1 , and is also the core of this application. As shown in Figures 8-13, the reflector 41 has an extension structure along the extension direction of the LED lamp tube, and the cross section of the extension structure is two domes connected side by side (that is, the raised part of the reflector) , the bottom end of the dome has an opening. And the opening of the dome faces the light-emitting surface, and each light-emitting surface is respectively located in a dome (the dome is an inverted paraboloid to include all the light-emitting surfaces), and the opening area of the dome is larger than the area of the light-emitting surface (that is, The area of the light exit surface of CO and DO is smaller than the inverted paraboloid formed by the reflector 41); the light from each light exit surface is directed to the corresponding inner wall of the dome, reflected by the inner wall of the dome and is not received by the light exiting in the opening of the dome The portion occluded by the face is emitted. In this way, the glare caused by direct sunlight caused by the strong light of the LED strip is avoided.

LED lamp housing 45

There are two connection relationships between the LED lamp housing 45, the reflector 41 and the LED lamp tube:

1) As shown in Figure 8-10, the LED lamp housing 45 is buckled and fixed on the reflector 41 by the back side cover of the dome, and the wall surface of the LED lamp housing 45 is covered by the dome. The side of the opening protrudes, and the base plate 42 is fixed to the wall surface protruding from the LED lamp housing 45 through the position of the central axis of the extension structure so that the base plate is rotated and fixed around the central axis, and the opening of the dome Towards the light-emitting surface, the base plate 42 is opposite to and spaced apart from the connecting end of the dome of the reflector 41 , specifically, the connecting end of the dome of the reflector 41 is the central axis of the base plate 42 The positions (at point O) correspond to and are separated by a certain distance. The setting of the distance is related to the height of the dome, the width of the part of the opening of the dome that is not blocked by the light-emitting surface, and the width of the substrate 42 (the distance between CDs). On the one hand, it can ensure that the LED The lamp tube rotates along the central axis so that the surface affixed with the LED light strip 43 can be turned downward to facilitate the loading and unloading of the LED light strip 43. On the other hand, it can ensure that the light emitted by the LED light strip 43 to point O can be emitted from the opening formed by the distance. To the emitter 41 on the other side and after 1-2 times of reflection, it is emitted from the part of the opening of the dome on this side that is not blocked by the light-emitting surface.

2) As shown in Figures 11-13, the LED lamp housing 45 is buckled and fixed on the reflector 41 by the back side cover of the dome, and the wall surface of the LED lamp housing 45 is fixed by the back side of the dome. The side of the opening protrudes, the substrate 42 is fixed to the wall surface protruding from the LED lamp housing 45, the reflector 41 is connected to the substrate 42 through the connecting end of the dome, and the opening of the dome faces the The light-emitting surface is mentioned; in this embodiment, the setting of the reflector 41 is based on the installation of the substrate 42 on a vertical plane. For example, LED light strips 43 are arranged on both sides of the central axis of the substrate (the LED light strips are arranged on both sides with point O as the center point), and the reflector 41 is connected to the substrate 42 through the connecting end of the dome and is aligned with the central axis position of the substrate. Fixed; since the opening of the set dome faces the light-emitting surface of the LED light strip 43, the light-emitting surface of each LED light strip 43 is surrounded by the dome surface (that is, the area of the light-emitting surface of CO and DO is smaller than that formed by the reflector 41 inverted paraboloid). Since the opening area of the dome is larger than the area of the light-emitting surface; the light from each light-emitting surface strikes the corresponding inner wall of the dome, is reflected by the inner wall of the dome and is not blocked by the light-emitting surface in the opening of the dome shoot out.

Based on the setting of the above-mentioned reflector, the glare caused by the direct light of the LED strip is effectively avoided. In addition, the light effect output by the light source of the LED light strip can be adjusted and distributed accordingly, so as to achieve the best effect of light effect utilization and output. Moreover, it is not necessary to control the light effect of the LED lamp strip by the lampshade in the prior art. As for the arrangement of the above LED light strips, preferably, the LED light strips 43 are arranged on both sides of the central axis along the extending direction of the lamps. It can effectively realize the maximization of light efficiency.

Further, it also includes: a heat dissipation profile 44 shown by the CED surface, installed on the side of the substrate 42 away from the light-emitting surface, and the outer contour of the heat dissipation profile 44 is adapted to the contour of the LED lamp tube.

The above description is only an embodiment of the present application, and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of the claims of the present application.

Claims (20)

1. a LED light fixture, is characterized in that, comprising: LED fluorescent tube, reflector, wherein,

Described LED fluorescent tube, further comprise: substrate and LED lamp band, described substrate has an extended structure along the bearing of trend of described LED fluorescent tube, described extended structure has the projection of the triangular in shape or V-type in cross section, the bottom surface of described extended structure has a planar structure, thereby described LED lamp band fits on the inclined-plane of described protruding both sides and forms two exiting surfaces, and the beam angle that described two exiting surfaces combination consists of is greater than 180 degree;

Described reflector has an extended structure along the bearing of trend of described LED fluorescent tube, and the cross section of described extended structure is two domes that are connected side by side, and the bottom of described dome has opening;

The connected end of described reflector by described dome be connected with the projection of described substrate and the opening of described dome towards described exiting surface, each exiting surface lays respectively in the encirclement of a dome, the aperture area of described dome is greater than described exiting surface area; The corresponding dome inwall of the light directive of each exiting surface, through the reflection of described dome inwall and the part of not blocked by described exiting surface in by the opening of described dome penetrate.

2. LED light fixture as claimed in claim 1, is characterized in that, forms a ventilation and heat passage thereby described projection has the hollow type structure.

3. LED light fixture as claimed in claim 1, is characterized in that, also comprises: lamp housing, wherein,

Described lamp housing is buckled on described reflector and is fixed by the dorsal part cover of described dome, and the wall of described lamp housing is stretched out by the side of the opening of described anti-dome, and the wall that described substrate and described lamp housing stretch out is fixed.

4. LED light fixture as claimed in claim 1, is characterized in that, described LED lamp band bearing of trend along described light fixture on the inclined-plane of described extended structure both sides is arranged, and described LED lamp band is arranged on described inclined-plane along on the axis of the bearing of trend of described light fixture.

5. LED light fixture as claimed in claim 1, is characterized in that, described reflector by described dome connected end and the vertex position of the projection of described substrate fix.

6. LED light fixture as claimed in claim 1, is characterized in that, described two exiting surfaces have an angle, and described angle is the drift angle of described triangle or V-type.

7. a LED light fixture, is characterized in that, comprising: lamp housing, LED fluorescent tube and reflector, wherein,

Described LED fluorescent tube, further comprise: substrate and LED lamp band, described substrate has an extended structure along the bearing of trend of described LED fluorescent tube, described extended structure has the projection of the triangular in shape or V-type in cross section, the bottom surface of described extended structure has a planar structure, thereby described LED lamp band fits on the inclined-plane of described protruding both sides and forms two exiting surfaces, and the beam angle that described two exiting surfaces combination consists of is greater than 180 degree;

Described reflector has an extended structure along the bearing of trend of described LED fluorescent tube, and the cross section of described extended structure is two domes that are connected side by side, and the bottom of described dome has opening;

described lamp housing is buckled on described reflector and is fixed by the dorsal part cover of described dome, the wall of described lamp housing is stretched out by the side of the opening of described anti-dome, that described substrate is rotated around described central shaft is fixing thereby the wall that central shaft position and the described lamp housing of described substrate by described extended structure stretches out is fixed, the connected end of the projection of described substrate and the dome of described reflector relative and be spaced a distance and the opening of described dome towards described exiting surface, each exiting surface lays respectively in the encirclement of a dome, the aperture area of described dome is greater than described exiting surface area, the corresponding dome inwall of the light directive of each exiting surface, through the reflection of described dome inwall and the part of not blocked by described exiting surface in by the opening of described dome penetrate.

8. LED light fixture as claimed in claim 7, is characterized in that, forms a ventilation and heat passage thereby described projection has the hollow type structure.

9. LED light fixture as claimed in claim 7, is characterized in that, also comprises: heat sink section bar, be arranged on the bottom surface of described extended structure, and the profile of the profile of described heat sink section bar and described LED fluorescent tube adapts.

10. LED light fixture as claimed in claim 7, is characterized in that, described LED lamp band bearing of trend along described light fixture on the inclined-plane of described extended structure both sides is arranged, and described LED lamp band is arranged on described inclined-plane along on the axis of the bearing of trend of described light fixture.

11. LED light fixture as claimed in claim 7 is characterized in that, the connected end of described dome is relative with the vertex position of the projection of described substrate.

12. LED light fixture as claimed in claim 7 is characterized in that, described two exiting surfaces have an angle, and described angle is the drift angle of described triangle or V-type.

13. a LED light fixture is characterized in that, comprising: LED fluorescent tube, reflector, wherein,

Described LED fluorescent tube further comprises: substrate and LED lamp band, and described substrate has a planar structure, forms two exiting surfaces thereby described LED lamp band is fixed on described substrate along the both sides of the axis of the bearing of trend of described light fixture;

Described reflector has an extended structure along the bearing of trend of described LED fluorescent tube, and the cross section of described extended structure is two domes that are connected side by side, and the bottom of described dome has opening;

The connected end of described reflector by described dome be connected with described substrate and the opening of described dome towards described exiting surface, each exiting surface lays respectively in the encirclement of a dome, the aperture area of described dome is greater than described exiting surface area; The corresponding dome inwall of the light directive of each exiting surface, through the reflection of described dome inwall and the part of not blocked by described exiting surface in by the opening of described dome penetrate.

14. LED light fixture as claimed in claim 13 is characterized in that, also comprises: lamp housing, wherein,

Described lamp housing is buckled on described reflector and is fixed by the dorsal part cover of described dome, and the wall of described lamp housing is stretched out by the side of the opening of described anti-dome, and the wall that described substrate and described lamp housing stretch out is fixed.

15. LED light fixture as claimed in claim 13 is characterized in that, described LED lamp band is arranged along the bearing of trend of described light fixture in the both sides of described axis.

16. LED light fixture as claimed in claim 13 is characterized in that, described reflector is fixed by the connected end of described dome and the position, axis of described substrate.

17. a LED light fixture is characterized in that, comprising: lamp housing, LED fluorescent tube, reflector, wherein,

Described LED fluorescent tube further comprises: substrate and LED lamp band, and described substrate has a planar structure, forms two exiting surfaces thereby described LED lamp band is fixed on described substrate along the both sides of the axis of the bearing of trend of described light fixture;

Described reflector has an extended structure along the bearing of trend of described LED fluorescent tube, and the cross section of described extended structure is two domes that are connected side by side, and the bottom of described dome has opening;

described lamp housing is buckled on described reflector and is fixed by the dorsal part cover of described dome, the wall of described lamp housing is stretched out by the side of the opening of described dome, that described substrate is rotated around described central shaft is fixing thereby the wall that central shaft position and the described lamp housing of described substrate by described extended structure stretches out is fixed, the connected end of described substrate and the dome of described reflector relative and be spaced a distance and the opening of described dome towards described exiting surface, each exiting surface lays respectively in the encirclement of a dome, the aperture area of described dome is greater than described exiting surface area, the corresponding dome inwall of the light directive of each exiting surface, through the reflection of described dome inwall and the part of not blocked by described exiting surface in by the opening of described dome penetrate.

18. LED light fixture as claimed in claim 17 is characterized in that, also comprises: heat sink section bar, be arranged on described substrate away from the one side of described exiting surface, the peripheral profile of described heat sink section bar and the profile of described LED fluorescent tube adapt.

19. LED light fixture as claimed in claim 17 is characterized in that, described LED lamp band is arranged along the bearing of trend of described light fixture in the both sides of described axis.

20. LED light fixture as claimed in claim 17 is characterized in that, the connected end of described dome is relative with the position, axis of described substrate.

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