CN210801032U

CN210801032U - Line source split type transition reflecting assembly and lamp thereof

Info

Publication number: CN210801032U
Application number: CN201921723223.5U
Authority: CN
Inventors: 宋恒柱; 吕志明; 陈庚军; 李民
Original assignee: Shenzhen Star Standard Technology Co ltd
Current assignee: Shenzhen Star Standard Technology Co ltd
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-06-19
Anticipated expiration: 2029-10-15

Abstract

The utility model discloses a split type transition reflection of light subassembly of line light source and lamps and lanterns thereof, wherein, this reflection of light subassembly, including outer bowl and internal reflector, outer bowl has the lateral wall of light inlet, light-emitting outlet and bisymmetry, and the light-emitting outlet is relative with light inlet, and the lateral wall of bisymmetry is located between light inlet and the light-emitting outlet, and the internal surface of every lateral wall is including the first plane of reflection, transition face and the second plane of reflection that set gradually. The inner reflector is arranged in the outer reflector, and the inner surface of the inner reflector comprises two symmetrical central reflecting surfaces. And one part of light rays emitted from the light inlet are reflected by the first reflecting surface and then emitted from the light outlet, and the other part of light rays are reflected to the second reflecting surface once by the central reflecting surface and then emitted from the light outlet after being reflected twice by the second reflecting surface. According to the utility model provides a split type transition reflection of light subassembly of line light source, through the cooperation of outer bowl and internal reflection cover, can assemble into effective facula with line light source light, improve spotlight effect and light source utilization ratio, and luminance is even.

Description

Line source split type transition reflecting assembly and lamp thereof

Technical Field

The utility model relates to a lamps and lanterns especially relate to a split type transition reflection of light subassembly of line light source and lamps and lanterns thereof.

Background

For a lighting fixture, in order to make output light of the lighting fixture have a specific light field shape to meet the requirement of the lighting field shape in practical application, a reflector is usually required to be arranged to adjust the light field shape of the output light of a light source.

In the related art, a spotlight reflector is generally used for condensing light of a light source, the light emitting direction of the light source and the reflecting direction of a reflector are arranged in the same direction, and the light emitted by the light source is reflected by the reflector. Generally speaking, the reflector surrounds the light source, and only light in certain angular range can be reflected by the reflector, and in other angular ranges, for example, light near the axis directly goes out, and does not pass through the reflection of reflector, and such light source has partial light and can not be effectively utilized, has reduced spotlight effect, and the light source utilization efficiency is lower to, luminance is uneven.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, an object of the utility model is to provide a split type transition reflection of light subassembly of line light source.

Another object of the present invention is to provide a lamp.

To achieve the above object, on the one hand, according to the utility model discloses split type transition reflection of light subassembly of line source, include:

the outer reflecting cover is provided with a light inlet, a light outlet and two symmetrical side walls, the light outlet is opposite to the light inlet, the two symmetrical side walls are positioned between the light inlet and the light outlet, the inner surface of each side wall comprises a first reflecting surface, a transition surface and a second reflecting surface which are sequentially arranged from the light outlet to the light inlet, the first reflecting surface, the transition surface and the second reflecting surface extend along a preset direction, and the transition surface is connected between the first reflecting surface and the second reflecting surface;

the inner reflector is arranged in the outer reflector, the inner surface of the inner reflector comprises two symmetrical central reflecting surfaces, and the two central reflecting surfaces face the light inlet and extend in the same direction as the first reflecting surface and the second reflecting surface;

and one part of light rays emitted from the light inlet are reflected by the first reflecting surface and then emitted from the light outlet, and the other part of light rays emitted from the light inlet are reflected to the second reflecting surface once by the central reflecting surface and then emitted from the light outlet after being reflected twice by the second reflecting surface.

According to the embodiment of the utility model provides a split type transition reflection of light subassembly of line source has outer bowl and internal reflection cover, and the lateral wall of outer bowl has first plane of reflection and second plane of reflection, and the internal reflection cover has two central planes of reflection, and the partly light that advances light mouthful and kick into passes through follow after the reflection of first plane of reflection the light outlet jets out, and another part light that advances light mouthful and kick into passes through center plane of reflection once to the second plane of reflection, warp again follow after the secondary reflection of second plane of reflection the light outlet jets out, so, through the cooperation between outer bowl and internal reflection cover, can assemble into effective facula with line source effective light, improves spotlight effect and light source utilization ratio, and simultaneously, the light of outgoing after the reflection is more even, and then makes luminance even. In addition, be equipped with the transition face that does not carry out effective light reflection between first plane of reflection and second plane of reflection, under the prerequisite of guaranteeing illumination intensity, reduce the diameter of outer bowl as far as to reduce the overall size of outer bowl, make the product miniaturized.

In addition, according to the utility model discloses split type transition reflection of light subassembly of above-mentioned embodiment of line source can also have following additional technical characterstic:

according to an embodiment of the present invention, two the side walls are symmetrical about a first plane of symmetry, two the central reflecting surface is symmetrical about a second plane of symmetry, the first plane of symmetry coinciding with the second plane of symmetry.

According to an embodiment of the present invention, the slope of the perpendicular tangent of the first reflective surface is greater than the slope of the perpendicular tangent of the second reflective surface.

According to an embodiment of the invention, a perpendicular tangent to the transition surface is substantially parallel to the first plane of symmetry.

According to an embodiment of the present invention, two of the central reflecting surfaces intersect to form an inverted V-shape.

According to the utility model discloses an embodiment, first plane of reflection, second plane of reflection and central plane of reflection are the structure of curved surface, cambered surface or inclined plane.

According to an embodiment of the present invention, the inner reflector is detachably provided inside the outer reflector.

According to the utility model discloses an embodiment, the top of internal reflection cover has to the convex connecting piece of light-emitting window direction, the central plane of connecting piece with the coincidence of second symmetrical surface.

On the other hand, according to the utility model discloses the lamps and lanterns that provide include:

the line light source is arranged at the light inlet, one part of light rays emitted from the light inlet are reflected by the first reflecting surface and then emitted from the light outlet, and the other part of light rays emitted from the light inlet are reflected once by the central reflecting surface and then emitted from the light outlet after being reflected twice by the second reflecting surface.

According to the utility model discloses lamp has the split type transition reflection of light subassembly of above-mentioned line source, consequently, through outer bowl and the cooperation between them of inner bowl, can assemble into effective facula with the effective light of line source, improves spotlight effect and light source utilization ratio, and simultaneously, the light of outgoing after the reflection is more even, and then makes luminance even. In addition, be equipped with the transition face that does not carry out effective light reflection between first plane of reflection and second plane of reflection, under the prerequisite of guaranteeing illumination intensity, reduce the diameter of outer bowl as far as to reduce the overall size of outer bowl, make the product miniaturized.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic view of a partial structure of a viewing angle of a lamp (including a line light source split type transition reflection assembly) according to an embodiment of the present invention;

fig. 2 is a schematic partial structural view of another view angle of a lamp (including a linear light source split type transition reflection assembly) according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of a lamp (including a split-type transition reflector assembly with a linear light source) according to an embodiment of the present invention;

fig. 4 is an exploded view of a lamp (including a split transition reflector assembly with a linear light source) according to an embodiment of the present invention.

Reference numerals:

an outer reflection cover 10;

a light inlet H10;

a light outlet H11;

a side wall 101;

the first reflecting surface S10;

the second reflecting surface S11;

an end wall 102;

an inner reflector 20;

a central reflecting surface S20;

a connecting member 201;

a linear light source 30.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention, and all other embodiments obtained by those skilled in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", and the like, indicate the orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The line source split type transition reflecting component and the lamp thereof according to the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Referring to fig. 1 to 4, a split-type transitional reflector assembly with a linear light source according to an embodiment of the present invention includes an outer reflector 10 and an inner reflector 20.

Specifically, the outer reflection cover 10 has a light inlet H10, a light outlet H11, and two symmetrical sidewalls 101, where the light outlet H11 is opposite to the light inlet H10, the two symmetrical sidewalls 101 are located between the light inlet H10 and the light outlet H11, an inner surface of each sidewall 101 includes a first reflection surface S10, a transition surface, and a second reflection surface S11 sequentially arranged from the light outlet H11 to the light inlet H10, the first reflection surface S10, the transition surface, and the second reflection surface S11 extend along a predetermined direction, and the transition surface is connected between the first reflection surface S10 and the second reflection surface S11.

In the example of fig. 3, the light inlet H10 is located below the light outlet H11 and opposite the light outlet H11. The two side walls 101 are located between the light inlet H10 and the light outlet H11, and the two side walls 101 are symmetrically arranged. The inner surface of each sidewall 101 includes a first reflection surface S10, a transition surface, and a second reflection surface S11, the first reflection surface S10 is adjacent to the light exit H11, the second reflection surface S11 is adjacent to the light entrance H10, and the first reflection surface S10 and the second reflection surface S11 extend along a predetermined direction (e.g., a horizontal direction) with the sidewall 101. When the reflector assembly is specifically applied to a lamp, the linear light source 30 may be disposed at the light inlet H10, and the length direction of the linear light source 30 is the same as the extending direction of the sidewall 101, for example, the linear light source 30 is disposed at a predetermined position below the light inlet H10, or the linear light source 30 is disposed at the light inlet H10, or it may be disposed at a predetermined position above the light inlet H10 in the outer reflector 10, so that the light emitted from the linear light source 30 enters the outer reflector 10 from the light inlet H10.

The inner reflector 20 is disposed inside the outer reflector 10, and the inner surface of the inner reflector 20 includes two symmetrical central reflecting surfaces S20, and the two central reflecting surfaces S20 face the light inlet H10 and extend in the same direction as the first reflecting surface S10 and the second reflecting surface.

A part of light entering the light inlet H10 is reflected by the first reflecting surface S10 and then exits from the light outlet H11, and another part of light entering the light inlet H10 is reflected once by the central reflecting surface S20 to the second reflecting surface S11, and is reflected twice by the second reflecting surface S11 and then exits from the light outlet H11.

Since the inner reflector 20 is opposite to the light inlet H10 in the outer reflector 10, the light rays closer to the optical axis surface among the light rays of the linear light source 30 are emitted toward the central reflecting surface S20 of the inner reflector 20, are once reflected to the second reflecting surface S11 of the outer reflector 10 by the central reflecting surface S20 of the inner reflector 20, are secondarily reflected by the second reflecting surface S11, and are emitted from the light outlet H11. The light rays from two sides of the linear light source 30 far from the center of the optical axis face directly irradiate the first reflecting surface S10 of the outer reflector 10, and are reflected by the first reflecting surface S10 and then exit from the light exit H11.

In practical use, the transition surface does not condense and reflect the effective light emitted by the point light source, but scatters and reflects part of the ineffective light, the ineffective light refers to residual light and stray light with less than 50% of main light intensity, the light needs to be avoided, and otherwise, the color temperature drift phenomenon can be caused. Meanwhile, the transition surface S12 is arranged to separate the first reflecting surface S10 from the second reflecting surface S11, so that the caliber of the outer reflecting cover is relatively reduced, the overall size of the product is reduced, and the production cost is reduced.

It should be noted that the distance between the inner reflector 20 and the light inlet H10 in the outer reflector 10 can be adjusted as required, as long as it can ensure that the light near the optical axis of the linear light source 30 can be reflected by the central reflecting surface S20 of the inner reflector 20 first, and then reflected by the first reflecting surface S10 of the outer reflector 10. Meanwhile, it is sufficient to ensure that the light on both sides of the optical axis surface of the linear light source 30 can be reflected by the second reflecting surface S11 of the outer reflection cover 10.

According to the utility model provides a split type transition reflection of light subassembly of line light source has outer bowl 10 and internal reflection cover 20, and lateral wall 101 of outer bowl 10 has first plane of reflection S10 and second plane of reflection S11, and internal reflection cover 20 has two central planes of reflection S20, and some light that light inlet H10 jetted into passes through follow after first plane of reflection S10 reflects light outlet H11 jets out, and another some light that light inlet H10 jetted into passes through central plane of reflection S20 once to second plane of reflection S11, warp again follow after second plane of reflection S11 secondary reflection light outlet H11 jets out, so, through the cooperation of outer bowl 10 and internal reflection cover 20 both, can assemble into effective facula with line light source 30 effective light, improve spotlight effect and light source utilization ratio, simultaneously, the light that the reflection back was emergent is more even, and then make luminance even. In addition, a transition surface which does not reflect effective light rays is arranged between the first reflecting surface S10 and the second reflecting surface S11, so that the diameter of the outer reflecting cover 10 is reduced as much as possible on the premise of ensuring the illumination intensity, the whole size of the outer reflecting cover 10 is reduced, and the product is miniaturized.

It will be appreciated that the outer reflector 10 may further comprise two end walls 102, the two end walls 102 being connected to two ends of the two side walls 101, respectively, in the example of fig. 1, the two end walls 102 are formed as arc-shaped walls, so that the entire outer reflector 10 is substantially oval-shaped. Of course, the two end walls 102 may also be formed as straight walls, thereby making the entire outer bowl 10 generally rectangular.

Preferably, the two side walls 101 are symmetrical about a first plane of symmetry, and the two central reflecting surfaces S20 are symmetrical about a second plane of symmetry, the first plane of symmetry coinciding with the second plane of symmetry. When the line light source 30 is installed, the optical axis surface of the line light source 30 coincides with the first symmetrical surface and the second symmetrical surface, so that the light reflecting component can converge all effective light rays of the light source into the design range of effective light condensing spots, all light rays of the light source can be effectively utilized, and the utilization rate of the light source is improved.

It should be noted that, the curvatures of the first reflecting surface S10 and the second reflecting surface S11 can be adjusted to further change the light emitting angle and the light emitting spot shape, for example, by adjusting the curvatures of the first reflecting surface S10 and the second reflecting surface S11, all the light rays emitted from the light outlet H11 are parallel to the optical axis plane or form a certain angle with the optical axis plane. Of course, in other embodiments, the converging light spot effect and the light emitting angle may also be corrected by adjusting the position of the linear light source 30 in the vertical direction or changing the size of the light spot of the linear light source 30.

It can be understood that the first reflective surface S10, the second reflective surface S11, and the central reflective surface S20 may be curved surfaces, or inclined surfaces, and the curved surfaces, or inclined surfaces may be selected according to the light-emitting angle and the light-emitting spot requirement.

Advantageously, the slope of the perpendicular tangent to the first reflecting surface S10 is greater than the slope of the perpendicular tangent to the second reflecting surface S11. The vertical tangent of the first reflecting surface S10 is the intersection between the longitudinal section of the outer reflector 10 and the first reflecting surface S10, and the vertical tangent of the second reflecting surface S11 is the intersection between the longitudinal section of the outer reflector 10 and the second reflecting surface S11. When the vertical tangent is a curve or arc, the slope refers to the slope of the tangent on the curve or arc, and when the vertical tangent is a straight line, the slope refers to the slope of the straight line itself.

In this way, the vertical tangent of the second reflecting surface S11 has a smaller slope than the vertical tangent of the first reflecting surface S10, so that the light reflected by the central reflecting surface S20 of the inner reflection cover 20 can be reflected by the second reflecting surface S11 for a second time to form parallel light and then exit from the light exit H11. The vertical tangent of the first reflective surface S10 has a larger slope than the vertical tangent of the second reflective surface S11, so that the light rays at two sides of the linear light source 30, which are far away from the optical axis surface, can be directly reflected by the first reflective surface S10 to form parallel light rays and be emitted from the light outlet H11, and further the emitted light rays are more uniform, and the uniformity of the brightness is improved.

More advantageously, the perpendicular tangent to the transition surface S12 is substantially parallel to said first plane of symmetry. It is understood that the perpendicular tangent line on the transition surface S12 is substantially parallel to the first symmetric surface, which means that the perpendicular tangent line on the transition surface S12 is parallel to the first symmetric surface, or the perpendicular tangent line on the transition surface S12 intersects the first symmetric surface at a small angle, so as to prevent the transition surface S12 from reflecting the effective light to some extent, which affects the reflection effect, and at the same time, is convenient for processing and forming.

More advantageously, the intersection of the two central reflecting surfaces S20 forms an inverted V-shape. Thus, the two central reflecting surfaces S20 of the inverted V shape can ensure that the light projected thereon can be reflected to the second reflecting surface S11, thereby improving the utilization rate of the light.

It is understood that, of course, in order to utilize the reflection efficiency of the inner reflector 20, it is preferable that the projected area of the two central reflecting surfaces S20 on the plane of the light inlet H10 is substantially equal to the area of the light inlet H10.

Referring to fig. 3, in an embodiment of the present invention, the inner reflector 20 is detachably disposed inside the outer reflector 10. That is, the inner reflector 20 is not directly connected to the outer reflector 10, so that the connection structure between the inner reflector 20 and the outer reflector 10 can be prevented from blocking light to cause light loss, and the light utilization rate can be further improved.

Advantageously, the top of the internal reflection cap 20 has a connecting piece 201 protruding towards the light outlet H11, and the central plane of the connecting piece 201 coincides with the second symmetrical plane. In the example of fig. 1, the connecting member 201 is formed in a plate shape extending upward, and in a specific application, the upper end of the connecting member 201 may be connected to a carrier such as a light-emitting mask, so that the inner reflector 20 and the outer reflector 10 are kept relatively fixed.

In this embodiment, the connecting member 201 is adopted, and on one hand, since the central plane of the connecting member 201 coincides with the second symmetric plane on the internal reflection cover 20, the connecting member 201 does not block light, and light loss is reduced. On the other hand, the connecting member 201 facilitates the installation and fixation of the inner reflection cover 20, and has a simple structure and convenient connection.

Referring to fig. 1 to 4, according to the embodiment of the present invention, a lamp includes a linear light source 30 and the split type transition reflective assembly of the linear light source, wherein the linear light source 30 is disposed at the light inlet H10, and the specific structure and the working principle of the split type condensation reflective assembly of the linear light source are described in the above embodiments, which are not repeated herein.

The lamp in the embodiment has a good light-gathering effect, and can be applied to occasions with high light intensity requirements, such as a remote highlight flashlight, a submarine light, a searchlight and the like.

According to the utility model provides a lamps and lanterns have the split type transition reflection of light subassembly of above-mentioned line source, consequently, through the cooperation of outer bowl 10 with the internal reflection cover 20 both, can assemble into effective facula with the effective light of line source 30, improve spotlight effect and light source utilization ratio, simultaneously, the light of outgoing after the reflection is more even, and then makes luminance even. In addition, a transition surface which does not reflect effective light rays is arranged between the first reflecting surface S10 and the second reflecting surface S11, so that the diameter of the outer reflecting cover 10 is reduced as much as possible on the premise of ensuring the illumination intensity, the whole size of the outer reflecting cover 10 is reduced, and the product is miniaturized.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. The utility model provides a split type transition reflection of light subassembly of line light source which characterized in that includes:

2. The line light source split transitional reflector assembly of claim 1, wherein the two sidewalls are symmetrical about a first plane of symmetry, the two central reflective surfaces are symmetrical about a second plane of symmetry, and the first plane of symmetry coincides with the second plane of symmetry.

3. The line light source split transitional reflector assembly of claim 1, wherein the slope of the perpendicular tangent of the first reflective surface is greater than the slope of the perpendicular tangent of the second reflective surface.

4. The line light source split transitional reflector assembly of claim 2, wherein a perpendicular tangent to the transition surface is substantially parallel to the first plane of symmetry.

5. The line light source split transitional reflector assembly of claim 1, wherein the two central reflective surfaces intersect to form an inverted V-shape.

6. The line light source split type transition reflective assembly of claim 1, wherein the first reflective surface, the second reflective surface and the central reflective surface are curved, cambered or inclined.

7. The line light source split transition reflector assembly of claim 2, wherein the inner reflector is detachably disposed within the outer reflector.

8. The line light source split transition reflector assembly of claim 7, wherein the top of the inner reflector has a connector protruding toward the light outlet, and a central plane of the connector coincides with the second symmetrical plane.

9. A light fixture, comprising:

10. A light fixture as recited in claim 9, wherein said sidewalls are symmetrical about a first plane of symmetry, and said central reflective surfaces are symmetrical about a second plane of symmetry, said first plane of symmetry coinciding with said second plane of symmetry.