CN211260681U - Linear light source reflector, light source assembly and lamp - Google Patents

Linear light source reflector, light source assembly and lamp Download PDF

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Publication number
CN211260681U
CN211260681U CN201922283809.0U CN201922283809U CN211260681U CN 211260681 U CN211260681 U CN 211260681U CN 201922283809 U CN201922283809 U CN 201922283809U CN 211260681 U CN211260681 U CN 211260681U
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China
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light source
reflecting
reflection
path
curved
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CN201922283809.0U
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Chinese (zh)
Inventor
陈利
张举兵
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Guangzhou Xinhang Technology Co ltd
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Guangzhou Xinhang Technology Co ltd
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Abstract

The utility model discloses a line source bowl, light source subassembly and lamps and lanterns for the light of reflection line source emission, line source bowl include plane of reflection and the back, and the plane of reflection includes first plane of reflection, second plane of reflection, third plane of reflection, fourth plane of reflection, fifth plane of reflection and sixth plane of reflection, and the line source is arranged in on the circuit board. The utility model is used for solve the line source bowl spotlight effect among the prior art poor, the diffusion angle of light is limited, the nonadjustable problem of the light intensity degree of consistency in the coplanar.

Description

Linear light source reflector, light source assembly and lamp
Technical Field
The utility model relates to a lamps and lanterns illumination field, concretely relates to line source bowl, light source subassembly and lamps and lanterns.
Background
The traditional linear light source condensation reflection cover type lamp has the advantages that the reflection surface of the reflection cover used by the linear light source is mostly formed by the concave arc surface, the condensation effect is poor, the reflection surface extends directionally, the linear light source and the reflection surface are parallel to each other, the diffusion angle of light is limited, and the uniformity of light intensity in the same plane is not adjustable.
Disclosure of Invention
The utility model aims to solve the technical problem that a line source bowl, light source subassembly and lamps and lanterns solve the line source bowl spotlight effect among the prior art poor, the diffusion angle of light is limited, the nonadjustable problem of the light intensity degree of consistency in the coplanar.
The utility model discloses a realize through following technical scheme: a line light source reflector is used for reflecting light emitted by a line light source and comprises a reflecting surface and a back surface, wherein the reflecting surface comprises a first reflecting surface, a second reflecting surface, a third reflecting surface, a fourth reflecting surface, a fifth reflecting surface and a sixth reflecting surface, and the line light source is arranged on a circuit board;
the first reflecting surface is a curved surface formed by sweeping a parabola L1 with a focus on the linear light source along a path L; the second reflecting surface is a curved surface formed by sweeping a parabola L2 with a focus on the linear light source along a path L0; the third reflecting surface is a curved surface formed by sweeping a parabola L3 with a focus on the linear light source along a path L0; the fourth reflecting surface is a curved surface formed by sweeping a parabola L4 with a focus on the linear light source along a path L0; the fifth reflecting surface is a curved surface formed by sweeping a straight line L5 along a path L0; the sixth reflecting surface is a curved surface formed by a straight line L6 sweeping along a path L0.
Preferably, the light emitting direction of the linear light source is directed to the reflecting surface.
As a preferable technical solution, projections of the first reflection surface and the fourth reflection surface in the direction perpendicular to the light source should be slightly larger than an area of the circuit board, so as to prevent light from being reflected onto the circuit board.
Preferably, the path L0 is a non-straight curve.
A light source assembly comprises an LED line light source and a line light source reflector, wherein the line light source reflector is positioned in the light emitting direction of the LED line light source and comprises a reflecting surface and a back surface, the reflecting surface comprises a first reflecting surface, a second reflecting surface, a third reflecting surface, a fourth reflecting surface, a fifth reflecting surface and a sixth reflecting surface, and the line light source is arranged on a circuit board;
the first reflecting surface is a curved surface formed by sweeping a parabola L1 with a focus on the linear light source along a path L; the second reflecting surface is a curved surface formed by sweeping a parabola L2 with a focus on the linear light source along a path L0; the third reflecting surface is a curved surface formed by sweeping a parabola L3 with a focus on the linear light source along a path L0; the fourth reflecting surface is a curved surface formed by sweeping a parabola L4 with a focus on the linear light source along a path L0; the fifth reflecting surface is a curved surface formed by sweeping a straight line L5 along a path L0; the sixth reflecting surface is a curved surface formed by a straight line L6 sweeping along a path L0.
Preferably, the light emitting direction of the linear light source is directed to the reflecting surface.
As a preferable technical solution, projections of the first reflection surface and the fourth reflection surface in the direction perpendicular to the light source should be slightly larger than an area of the circuit board, so as to prevent light from being reflected onto the circuit board.
Preferably, the path L0 is a non-straight curve.
A light fixture, characterized by: having a light source assembly.
The utility model has the advantages that: compared with the prior art, the invention adopts the paraboloid or the near paraboloid as the reflecting surface, thereby having better light condensation effect;
compared with the prior art, the invention adopts the reflecting surface formed by sweeping along the non-straight curve, can automatically adjust the diffusion angle of the light rays, and gather or disperse the light rays, thereby improving the utilization rate of the light rays, and having high efficiency and energy saving;
compared with the prior art, the invention adopts the reflecting surface formed by sweeping along a non-straight curve, can automatically adjust the diffusion angle of the light, can reduce the number of the light sources and the reflectors, such as increasing the diffusion angle and reducing the number of the light sources and the reflectors, and maintains the planar 360-degree light ray emergence, thereby achieving the purpose of saving the cost;
compared with the prior art, the invention adopts the reflecting surface formed by sweeping along the non-straight curve, the light intensity uniformity is distributed, different scene requirements can be met, for example, the difference value between the highest light intensity and the lowest light intensity in the same plane can be reduced or increased, and the illumination uniformity of the plane or curved surface irradiation surface can be improved or reduced.
The reflecting surfaces in the prior art are concave arc surfaces and inclined surfaces, and the invention adopts concave curved surfaces and convex curved surfaces which are formed by sweeping parabolas and straight lines;
the reflecting surface of the prior art is formed by extending along a fixed direction, and the reflecting surface is formed by sweeping along a non-straight curved path.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 these drawings without creative efforts.
Fig. 1 is a schematic structural view of the reflection cover of the present invention;
fig. 2 is a schematic structural view of a light source assembly according to the present invention;
fig. 3 is a schematic view of the scanning of the reflecting surface of the present invention;
FIG. 4 is a schematic sectional view of a fourth reflecting surface.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
In the description of the present invention, it is to be understood that the terms "one end", "the other end", "the outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", etc. indicate orientations or positional relationships based on those 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, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
The use of terms herein such as "upper," "above," "lower," "below," and the like in describing relative spatial positions is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In the present invention, unless otherwise explicitly specified or limited, the terms "set", "coupled", "connected", "penetrating", "plugging", and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 1, an embodiment of the present invention provides a linear light source reflection cover 10 for reflecting light emitted by a linear light source (e.g., a linear light source composed of LEDs) 30, the linear light source reflection cover 10 includes a reflection surface 11 and a back surface 12, the reflection surface 11 includes a reflection surface 111, a reflection surface 113, a reflection surface 115, a reflection surface 112, a reflection surface 114, and a reflection surface 116, and the linear light source 30 is disposed on a circuit board 20.
The reflecting surface 111 is a curved surface where a parabola L1 having a focus on the line light source 30 is swept along a path L, the reflecting surface 112 is a curved surface where a parabola L2 having a focus on the line light source 30 is swept along a path L0, the reflecting surface 113 is a curved surface where a parabola L3 having a focus on the line light source 30 is swept along a path L0, the reflecting surface 114 is a curved surface where a parabola L4 having a focus on the line light source 30 is swept along a path L0, the reflecting surface 115 is a curved surface where a straight line L5 is swept along a path L0, and the reflecting surface 116 is a curved surface where a straight line L6 is swept along a path L0.
The light emitting direction of the linear light source is directed toward the reflecting surface 10.
The projection of the reflecting surface 111 and the reflecting surface 112 in the direction perpendicular to the line light source should be slightly larger than the area of the circuit board 20 to avoid the light from reflecting onto the circuit board 20.
The path L0 is a non-straight curve.
The light ray R3 emitted from the linear light source 30 is incident on the reflecting surface 111, and the reflecting surface reflects the light ray in parallel to the reflecting surface 115 and then exits in parallel from the reflecting surface 115.
The light ray R4 emitted from the linear light source 30 is incident on the reflective surface 112, and the reflective surface reflects the light ray in parallel to the reflective surface 115 and then exits in parallel from the reflective surface 116.
The light ray R1 emitted from the linear light source 30 is incident on the reflective surface 113 and is reflected in parallel by the reflective surface 113.
The light ray R2 emitted from the linear light source 30 is incident on the reflecting surface 114 and is reflected in parallel by the reflecting surface 113.
When the light emitting area of the linear light source is narrow, the outgoing light rays of the light rays R1, R2, R3 and R4 are parallel to each other by adjusting the angles of the parabola L1, the parabola L2, the parabola L3, the parabola L4, the straight line L5 and the straight line L6 to be a certain angle, so that better light condensation effect and uniform illumination can be realized.
When the light emitting area of the linear light source is larger, the illumination of the center of the irradiation area can be greatly improved or reduced by adjusting the directions of the outgoing light ray R1 of the parabola L3 and the outgoing light ray R2 of the parabola L4 to form a certain angle. Preferably, when the light ray R1 and the light ray R2 intersect, the illuminance at the center of the irradiation area can be increased. When the light ray R1 and the light ray R2 form a divergent angle, the illuminance at the center of the irradiation region can be reduced.
When the path L0 is a concave curve, the reflection surface 11 corresponds to a concave curved surface, the diffusion angle of the light is small, and the diffusion angle of the light can be reduced by increasing the curvature of the path L0, thereby adjusting the light intensity distribution. When the curvature of the path L0 is increased, the angle of the light ray with the normal line at the incident point of the reflection surface decreases, the exit angle decreases, and thus the diffusion angle of the light ray is reduced.
When the path L0 is a convex curve, the reflecting surface 11 corresponds to a convex curved surface, the diffusion angle of the light is large, and the diffusion angle of the light can be increased by increasing the curvature of the path L0, thereby adjusting the light intensity distribution. When the curvature of the path L0 is increased, the angle of the light ray to the normal line at the point of incidence of the light-emitting and reflecting surface increases, the exit angle increases, and therefore the diffusion angle of the light ray increases.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims (9)

1. A linear light source reflector for reflecting light emitted by a linear light source, comprising: the linear light source reflection cover comprises a reflection surface and a back surface, the reflection surface comprises a first reflection surface, a second reflection surface, a third reflection surface, a fourth reflection surface, a fifth reflection surface and a sixth reflection surface, and the linear light source is arranged on the circuit board;
the first reflecting surface is a curved surface formed by sweeping a parabola L1 with a focus on the linear light source along a path L; the second reflecting surface is a curved surface formed by sweeping a parabola L2 with a focus on the linear light source along a path L0; the third reflecting surface is a curved surface formed by sweeping a parabola L3 with a focus on the linear light source along a path L0; the fourth reflecting surface is a curved surface formed by sweeping a parabola L4 with a focus on the linear light source along a path L0; the fifth reflecting surface is a curved surface formed by sweeping a straight line L5 along a path L0; the sixth reflecting surface is a curved surface formed by a straight line L6 sweeping along a path L0.
2. The line source reflector of claim 1, wherein: the light emitting direction of the linear light source points to the reflecting surface.
3. The line source reflector of claim 1, wherein: the projection of the first reflecting surface and the projection of the fourth reflecting surface in the direction perpendicular to the line light source are slightly larger than the area of the circuit board, so that light is prevented from being reflected to the circuit board.
4. The line source reflector of claim 1, wherein: the path L0 is a non-straight curve.
5. A light source assembly, characterized by: the LED line light source comprises an LED line light source and a line light source reflection cover, wherein the line light source reflection cover is positioned in the light outgoing direction of the LED line light source and comprises a reflection surface and a back surface, the reflection surface comprises a first reflection surface, a second reflection surface, a third reflection surface, a fourth reflection surface, a fifth reflection surface and a sixth reflection surface, and the line light source is arranged on a circuit board;
the first reflecting surface is a curved surface formed by sweeping a parabola L1 with a focus on the linear light source along a path L; the second reflecting surface is a curved surface formed by sweeping a parabola L2 with a focus on the linear light source along a path L0; the third reflecting surface is a curved surface formed by sweeping a parabola L3 with a focus on the linear light source along a path L0; the fourth reflecting surface is a curved surface formed by sweeping a parabola L4 with a focus on the linear light source along a path L0; the fifth reflecting surface is a curved surface formed by sweeping a straight line L5 along a path L0; the sixth reflecting surface is a curved surface formed by a straight line L6 sweeping along a path L0.
6. The light source module as recited in claim 5, wherein: the light emitting direction of the linear light source points to the reflecting surface.
7. The light source module as recited in claim 5, wherein: the projection of the first reflecting surface and the projection of the fourth reflecting surface in the direction perpendicular to the line light source are slightly larger than the area of the circuit board, so that light is prevented from being reflected to the circuit board.
8. The light source module as recited in claim 5, wherein: the path L0 is a non-straight curve.
9. A light fixture, characterized by: having a light source assembly according to any one of claims 5 to 8.
CN201922283809.0U 2019-12-18 2019-12-18 Linear light source reflector, light source assembly and lamp Active CN211260681U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922283809.0U CN211260681U (en) 2019-12-18 2019-12-18 Linear light source reflector, light source assembly and lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922283809.0U CN211260681U (en) 2019-12-18 2019-12-18 Linear light source reflector, light source assembly and lamp

Publications (1)

Publication Number Publication Date
CN211260681U true CN211260681U (en) 2020-08-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922283809.0U Active CN211260681U (en) 2019-12-18 2019-12-18 Linear light source reflector, light source assembly and lamp

Country Status (1)

Country Link
CN (1) CN211260681U (en)

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