WO2021103540A1

WO2021103540A1 - Lamp

Info

Publication number: WO2021103540A1
Application number: PCT/CN2020/100408
Authority: WO
Inventors: 张德峰; 聂宗福; 苑文波; 杨凯栋; 周晴; 李江海
Original assignee: 广东洲明节能科技有限公司; 深圳市洲明科技股份有限公司
Priority date: 2019-11-29
Filing date: 2020-07-06
Publication date: 2021-06-03
Also published as: CN210800746U

Abstract

The present application relates to a lamp. The lamp comprises a light source, and a lens. The relative position of the lens and the light source are continuously adjustable, and light emitted by the light source is emitted out by means of the light emitting surface of the lens; the lens comprises a maximum light-emitting angle position and a minimum light-emitting angle position; when the light source corresponds to the maximum light-emitting angle position, the lamp has a maximum light-emitting angle; and when the light source corresponds to the minimum light-emitting angle position, the lamp has a minimum light-emitting angle.

Description

Lamps

Technical field

This application relates to the technical field of lighting, in particular to a lamp.

Background technique

The LED light source has the advantages of long life, low energy consumption, and environmental protection, and it is widely used in the field of lighting. As the most important part of LED lamps, the optical system is used to meet the lighting needs of various areas. The optical system of the LED lamp usually uses a secondary lens to optimize the light distribution of the light emitted by the LED lamp, so that when the light is irradiated to the illuminated surface, it can achieve the effect of high uniformity of illumination and wider illumination distribution area.

In order to meet the lighting needs of LED lamps in actual use, some LED lamps can adjust the light output angle in stages to obtain different specific light output angles.

Summary of the invention

A lamp, comprising: a light source; a lens, the relative position of the lens and the light source is continuously adjustable, the light emitted by the light source is emitted through the light exit surface of the lens; the lens includes a position of a maximum light output angle and a minimum light output Angle position; when the light source corresponds to the maximum light output angle position, the lamp has the maximum light output angle; when the light source corresponds to the minimum light output angle position, the lamp has the minimum light output angle.

In the above lamp, since the light emitted by the light source is emitted through the light-emitting surface of the lens, the relative position of the lens and the light source is continuously adjustable, so that different cross-sectional positions of the lens can be adjusted to correspond to the light source, and different light-emitting requirements of the lamp can be realized. When the maximum light output angle position corresponds to the light source, the light output angle of the lamp is the largest; when the minimum light output angle position corresponds to the light source, the light output angle of the lamp is the smallest. In this way, the stepless adjustment of the lamp within the range of the maximum light output angle and the minimum light output angle can be realized, the adjustment of any target corresponding position of the lens and the light source within the adjustable position range can be realized, and the stepless adjustment of the light distribution of the lamp can be realized.

In one of the embodiments, the lamp further includes a drive mechanism and a drive shaft, the power output shaft of the drive mechanism is connected to the drive shaft, the drive shaft is connected to the lens, and the drive mechanism passes through the drive shaft. The lens is driven to move, thereby adjusting the relative position of the lens and the light source.

In one of the embodiments, the driving mechanism drives the lens to rotate relative to the center line of the driving shaft through the driving shaft.

In one of the embodiments, the lamp further includes an illuminance collection probe and a light intensity collection probe, the illuminance collection probe and the light intensity collection probe are both connected to the control end of the driving mechanism, and the illuminance collection probe is used for collecting Environmental illuminance, the light intensity collection probe is used to collect the ambient light intensity. In this way, according to the requirements of the illuminance and light intensity of the environment, and the current illuminance and light intensity data collected by the illuminance collecting probe and the light intensity collecting probe, the driving mechanism drives the lens to move relative to the light source, so that the lamp can accurately meet the light output requirements.

In one of the embodiments, the lamp further includes a control unit, the control unit is respectively connected with the illuminance collection probe, the light intensity collection probe and the control end of the drive mechanism, the control unit controls the drive mechanism The movement of the lens is driven by the drive shaft. In this way, the control unit can collect the current illuminance and light intensity data collected by the probe and the light intensity collection probe according to the requirements of the illuminance and light intensity of the environment, and control the driving mechanism to drive the lens to move relative to the light source, so that the lamp can accurately meet the light output demand.

In one of the embodiments, the lens is mounted on a fixing frame, the lens is used to cover the light source, and the fixing frame is connected to the drive shaft so that the drive shaft is connected to the lens .

In one of the embodiments, the lens includes a light-incident surface and a light-emitting surface, the light-incident surface is provided on a side of the lens facing the light source, the light-incident surface has a groove-shaped structure, and the The contour of the light incident surface on the normal section perpendicular to the position adjustment direction of the lens is a first arc line; the light exit surface is provided on the side of the lens facing away from the light source, and the light exit surface is perpendicular The contour on the normal section of the lens position adjustment direction is a second arc line; at different normal section positions of the lens, the first arc line is opposite to the second arc line The positions are different to form different light exit angles.

Since the light-transmitting light-incident surface has a groove-shaped structure and is arranged toward the light source, the light emitted by the light source can be refracted and emitted through the light-incident surface and the light-exit surface in turn, so as to realize the light output of the lamp. Since the relative positions of the first arc-shaped line and the second arc-shaped line are different at different normal cross-sectional positions of the lens, the light source refracts different light exit angles when passing through different normal cross-sectional positions. In this way, when the drive unit moves, the drive shaft drives the lens to move, so that the relative position of the lens and the light source is changed, so that different light output angles of the lamp can be realized to meet the requirements of different light distribution angles. In this way, it is possible to avoid the requirement of different light distribution angles of the traditional lamps by replacing different secondary lenses, and solve the problems of high mold cost and low timeliness.

In one of the embodiments, the lamp further includes an illuminance collection probe and a light intensity collection probe, the illuminance collection probe and the light intensity collection probe are both installed in the fixed frame, and the illuminance collection probe and the light intensity collection probe The acquisition probes are all connected with the control end of the driving mechanism. The illuminance collection probe is used to collect environmental illuminance, and the light intensity collection probe is used to collect ambient light intensity, so that the illuminance collection probe and the light intensity collection probe can be better set, and the illuminance collection probe can better collect the surrounding environment of the lamp Illumination data, and enable the light intensity collection probe to better collect the light intensity data of the surrounding environment of the lamp.

In one of the embodiments, the number of the lenses is multiple, a plurality of the lenses are connected in sequence, and at least one of the lenses is connected to the fixing frame.

In one of the embodiments, the fixing frame includes a connected bracket and a fixing ring, the bracket is connected with the drive shaft and at least one of the lenses, and a plurality of the lenses are all connected with the fixing ring, so that The fixing frame is respectively connected with the lens and the drive shaft.

The present application also provides a lamp, including: a mounting plate, at least one side of the mounting plate is a light source side, at least one light source is provided on the light source side, and the light source protrudes outward relative to the light source side; At least one lens is used to cover the at least one light source; the lens includes a bottom surface, a light incident surface, and a light output surface, the bottom surface is joined to the light source side, and the light incident surface faces the light source and is The light-incident surface has a groove-shaped structure; the light-emitting surface faces away from the light source; a driving mechanism for driving at least one of the lens and the mounting plate to move in a predetermined direction, so that the Relative sliding occurs between the bottom surface of the lens and the side of the light source, thereby adjusting the relative position of the light source and the lens; in a direction perpendicular to the preset direction, each of the lenses can be The shape of the cross section corresponding to the light source is not a uniform shape.

In one of the embodiments, the lens includes a first end surface and a second end surface, the first end surface and the second end surface are both perpendicular to the preset direction, and the light incident surface and the light output surface are perpendicular to each other. The surfaces are respectively connected between the first end surface and the second end surface, the light incident surface and the light output surface are both curved structures; when the relative position of the light source and the lens is from the light source to the light source When the first end surface is correspondingly changed to the light source corresponding to the second end surface, on the cross section of the lens corresponding to the light source, the light emitted by the light emitting surface is formed The angle gradually increases.

In one of the embodiments, there are multiple light sources, and multiple light sources are arranged on the light exit side in a ring array; there are multiple lenses, and multiple lenses are connected to form a ring lens group and covered On the multiple light sources; the driving mechanism is used to drive at least one of the ring lens group or the mounting plate to rotate.

In one of the embodiments, the geometric shapes of a plurality of the lenses are the same, the first end surface of each lens is in contact with the first end surface of the adjacent lens, and the second end surface of each lens is in contact with the adjacent lens. The second end of the lens is facing each other.

In one of the embodiments, the ring lens group is connected to a rotating shaft through a connecting plate, the rotating shaft is located at the center of the ring lens group, and the power output shaft of the driving mechanism is connected to the rotating shaft.

In one of the embodiments, the light source is an LED lamp, and the mounting board is a circuit board; one side of the mounting board forms the light source side, the other side forms the backlight side, and the backlight side is connected with a heat sink The mounting plate and the heat dissipation plate both have through holes, and the power output shaft of the driving mechanism and the rotating shaft are connected by a drive shaft penetrating through the through holes.

In one of the embodiments, the lamp further includes a control unit, which is electrically connected to the driving mechanism and used to control the working state of the driving mechanism.

In one of the embodiments, the lamp further includes a remote control center, and the remote control center is electrically connected to the control unit for sending control signals to the control unit.

In one of the embodiments, the luminaire further includes an illuminance collection probe and a light intensity collection probe. The illuminance collection probe and the light intensity collection probe are respectively electrically connected to the control unit, and the illuminance collection probe is used to collect environmental illuminance. The light intensity collection probe is used to collect the ambient light intensity.

Description of the drawings

Fig. 1 is a schematic structural diagram of a lamp in an embodiment;

Fig. 2 is a schematic diagram of the lens of the lamp shown in Fig. 1;

FIG. 3 is a schematic diagram of another viewing angle of the lens shown in FIG. 2;

FIG. 4 is a schematic diagram of the light output of the normal cross-section at the position of the maximum light output angle of the lens shown in FIG. 2;

FIG. 5 is a schematic diagram of the light output of the normal cross section of the middle light output angle position of the lens shown in FIG. 2;

FIG. 6 is a schematic diagram of the light output of the normal cross section of the minimum light output angle position of the lens shown in FIG. 2;

FIG. 7 is a corresponding lens spot diagram of the normal cross section at the position of the maximum light output angle of the lens shown in FIG. 4; FIG.

FIG. 8 is a corresponding lens light distribution curve diagram of the normal cross section at the position of the maximum light output angle of the lens shown in FIG. 4; FIG.

FIG. 9 is a lens spot diagram corresponding to the normal cross-section at the position of the minimum light exit angle of the lens shown in FIG. 6; FIG.

FIG. 10 is a corresponding lens light distribution curve diagram of the normal cross section at the minimum light output angle position of the lens shown in FIG. 6; FIG.

FIG. 11 is a corresponding lens spot diagram of the normal section of the middle light exit angle position of the lens shown in FIG. 5; FIG.

FIG. 12 is a corresponding lens light distribution curve diagram of the normal section of the middle light exit angle position of the lens shown in FIG. 5; FIG.

Fig. 13 is a schematic diagram of a lens group with two adjacent lenses shown in Fig. 2 symmetrically arranged with respect to a normal cross section;

Fig. 14 is a schematic diagram of a lens of a lamp in another embodiment.

Detailed ways

In order to facilitate the understanding of this application, a more comprehensive description of the lamp will be given below with reference to the relevant drawings. The preferred embodiment of the luminaire is shown in the attached drawings. However, the lamp can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the lamp more thorough and comprehensive.

It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or a central element may also be present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or an intermediate element may be present at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only, and are not meant to be the only embodiments.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of this application. The terminology used in the specification of the lamp herein is only for the purpose of describing specific embodiments, and is not intended to limit the application. The term "and/or" as used herein includes any and all combinations of one or more related listed items.

As shown in FIGS. 1 to 3, the lamp 10 of an embodiment includes an annular lens group 100, a plurality of light sources 200, a mounting plate 300, a heat dissipation plate 500, a driving mechanism 430, and the like.

The ring lens group 100 is formed by sequentially connecting a plurality of lenses 110 to cover a plurality of light sources 200 so that the light emitted by the light sources 200 is refracted by the lenses 110 and then emitted. 2 and 3 show a preferred structure of the lens 110. The lens 110 includes a first end surface 11a, a second end surface 11b, a bottom surface 113, a light incident surface 112, and a light output surface 114. The light incident surface 112 faces the light source 200, and the light output surface 114 faces away from the light source 200. The light incident surface 112 has a groove-shaped structure 1120 having a predetermined length. In this embodiment, the groove-shaped structure 1120 penetrates the first end surface 11a and the second end surface 11b. Further, the annular lens group 100 is installed on the fixing frame 120, so that the plurality of lenses 110 can move synchronously with the fixing frame 120, and the light output angle of each lens 110 can be adjusted synchronously. The fixing frame 120 includes a rotating shaft 122 and a plurality of connecting plates 124. The radially inner end of the connecting plate 124 is connected to the rotating shaft 122, the radially outer end of the connecting plate 124 is connected to the ring lens group 100, and the center line of the rotating shaft 122 is substantially coincident with the center line of the ring lens group 100.

The light source 200 is, for example, an LED lamp, and the mounting board 300 is, for example, a circuit board, and power is provided to the light source 200 through a circuit on the circuit board. In this embodiment, one side of the mounting board 300 is the light source side 301, and the other side is the backlight side. The light source 200 is disposed on the light source side 301 and protrudes outward with respect to the light source side 301. In this embodiment, the multiple light sources 200 are arranged in an annular array, and the circumferential spacing between the light sources 200 is substantially equal.

The ring lens group 100 is arranged on the light source side 301 of the mounting board 300 and covers a plurality of light sources 200, and the light emitted by each light source 200 can be refracted by each lens 110. The bottom surface of the ring lens group 100 (including the bottom surface 113 of the lens 110) is joined to the light source side 301. At the same time, the bottom surface of the ring lens group 100 and the light source side 301 can slide relatively to adjust the relative position of the light source 200 and the lens 110. Wherein, the groove-shaped structure 1120 of the light incident surface 112 allows relative movement between the lens 110 and the light source 200, so that the relative position of the lens 110 and the light source 200 is continuously adjustable. In this embodiment, the ring lens group 100 can rotate in a predetermined direction around its centerline, and the mounting plate 300 on which the light source 200 is located may not move, so that the position of the light source 200 relative to the light incident surface 112 is changed, and the ring shape is improved. The ease of position adjustment of the lens group 100. In some embodiments, the ring lens group 100 can be kept from rotating, and the mounting plate 300 can be rotated relative to the center line of the ring lens group 100. In some embodiments, the ring lens group 100 and the mounting plate 300 can each be able to rotate synchronously or asynchronously.

It can be seen from FIGS. 1 and 6 that in this embodiment, in the direction perpendicular to the rotation direction of the ring lens group 100, each of the cross-sections of the lens 110 that can correspond to the light source 200 (also called normal cross-section, ring-shaped The shape of the center line of the lens group 100 on the normal cross-section) is not a uniform shape. It should be noted that the non-uniform shape of the cross-section in this embodiment means that all normal cross-sections corresponding to different positions of the lens 110 include normal cross-sections with different shapes and/or sizes. In this way, when the ring lens group 100 rotates in the direction of rotation (that is, the ring lens group 100 moves along a preset direction), the bottom surface of the ring lens group 100 and the light source side 301 relatively slide, and each lens 110 of the ring lens group 100 The relative position with each light source 200 changes, and then on the normal cross section of each lens 110 corresponding to the light source 200, the light exit angle formed by the light emitted by the light exit surface 114 can be changed, which can achieve different light exit effects. Realize the stepless adjustment of the light angle. Figures 4 to 6 show the light emitted on the light-emitting surface 114 when different normal cross-sections are directly opposite to the light source 200. The angle between the outermost light-emitting rays L1 and L2 (not numbered in the figure, for The obtuse angle between L2 and L2 is called the light exit angle of each normal section.

It can be seen that the light emitted by the light source 200 enters the lens body of the lens 110 from the light entrance surface 112 and then exits the light exit surface 114. It can be understood that the relative position of the lens 110 and the light source 200 changes, and the light exit angle on the normal cross-section corresponding to the light source 200 can change with the change of the positions of the lens 110 and the light source 200. The light-emitting angle of the lens includes the maximum light-emitting angle and the minimum light-emitting angle. The cross-sectional position corresponding to the maximum light-emitting angle is called the maximum light-emitting angle position of the lens, and the cross-sectional position corresponding to the minimum light-emitting angle is called the minimum light-emitting angle position of the lens. As shown in FIG. 4, when the maximum light output angle position corresponds to the light source 200, the lamp 10 has the maximum light output angle. As shown in FIG. 6, when the minimum light output angle position corresponds to the light source 200, the lamp 10 has the minimum light output angle.

In one embodiment, the lamp 10 is a garden lamp. Of course, the lamp 10 is not limited to garden lights.

In the lamp of the above embodiment, since the light emitted by the light source 200 is emitted through the light exit surface 114 of the lens 110, the relative position of the lens 110 and the light source 200 can be continuously adjusted, so that the different positions of the light exit surface 114 of the lens 110 can be adjusted to that of the light source 200. Correspondingly, different light emission requirements of lamps can be realized. When the maximum light-emitting angle position corresponds to the light source, the light-emitting angle of the lamp is the largest. When the position of the minimum light output angle corresponds to the light source, the light output angle of the lamp is the smallest. In this way, stepless adjustment of the lamp within the range of the maximum light output angle and the minimum light output angle is realized. By adjusting any target position of the lens 110 within the adjustable position range, the light output angle on the normal section can be adjusted between the maximum light output angle and the minimum light output angle, and the stepless adjustment of the light distribution of the lamp can be realized.

In order to enable the relative position of the lens 110 and the light source 200 to be automatically and continuously adjusted, in one of the embodiments, the lamp further includes a driving mechanism 430 for driving at least one of the lens 110 and the mounting plate 300 to move in a preset direction, In order to cause relative sliding between the bottom surface 113 of the lens 110 and the light source side 301, the relative position of the light source 200 and the lens 110 can be adjusted. In this embodiment, the power output shaft 435 of the driving mechanism 430 is connected to the driving shaft 600, and the driving shaft 600 is connected to the rotating shaft 122. The driving mechanism 430 drives the ring lens group 100 to move relative to the light source 200 through the driving shaft 600, so that the relative positions of the lenses 110 of the ring lens group 100 and the light sources 200 can be continuously and automatically adjusted.

It can be understood that, in this embodiment, the drive shaft 600 can drive the annular lens group 100 to move or rotate relative to the light source 200, so that the relative position of the lens 110 and the light source can be continuously adjusted. It can be understood that, in this embodiment, the drive shaft 600 drives the ring lens group 100 to rotate relative to the light source 200. In one of the embodiments, the driving mechanism 430 drives the annular lens group 100 to rotate relative to the light source 200 through the driving shaft 600, so that the rotation angle position of the lens 110 relative to the light source 200 is continuously adjustable. In other embodiments, especially when each lens 110 does not constitute a ring structure but, for example, a linear structure (at this time, a plurality of light sources 200 may also be linearly arranged), the driving mechanism 430 adjusts the lens 110 in a translational manner, for example. The position relative to the light source 200 is such that the different cross-sections of the lens 110 perpendicular to the translation direction correspond to the light source 200, thereby automatically adjusting the light output angle.

In one of the embodiments, the lamp 10 further includes a control unit, which is respectively connected to the control end of the illuminance collection probe, the light intensity collection probe, and the driving mechanism. The control unit controls the driving mechanism 430 to drive the lens 110 to move relative to the light source 200 through the driving shaft 600. The control unit controls the driving mechanism 430 to drive the lens 110 to move relative to the light source 200 according to the requirements of the illuminance and light intensity of the environment, and according to the current illuminance and light intensity data collected by the illuminance collection probe and the light intensity collection probe, so that the lamp 10 can accurately meet the requirements Light demand.

As shown in FIG. 2, in one of the embodiments, the light incident surface 112 is provided on one surface of the lens 110, and the contour line of the light incident surface 112 on the normal section of the lens 110 is a first arc.线112a. The groove-shaped structure 1120 of the light incident surface 112 a is also called a light output groove structure, and the light output groove structure is disposed toward the light source 200. As shown in Figures 2 and 3, the normal section is on a normal plane perpendicular to the position adjustment direction of the lens 110 (rotation direction in this embodiment), that is, the normal section is perpendicular to the position adjustment of the lens 110 Directional section. In this embodiment, the ring lens group 100 and the relative positions of the lens 110 and the light source 200 are adjusted by rotation. It can be understood that in other embodiments, the relative positions of the annular lens group 100 and its lens 110 and the light source 200 can also be adjusted by translation. Further, the shapes of the first arc lines 112a on different normal cross sections may be different from each other.

As shown in FIGS. 2 and 3, in one of the embodiments, the light-emitting surface 114 is provided on a side of the lens 110 that faces away from the light-incident surface 112. In this embodiment, the contour line of the light exit surface 114 on the normal cross section of the lens 110 is the second arc line 114a. At different normal cross-sectional positions of the lens 110, the relative positions of the first arcuate line 112a and the second arcuate line 114a are different to form different light exit angles. For the normal cross-sections at different positions of the light-emitting surface 114, the shape of the second arc line 114a is different.

Since a groove-shaped structure 1120 is provided on one side of the light-transmitting unit, and the groove-shaped structure 1120 is disposed toward the light source 200, the inner wall of the groove-shaped structure 1120 is the light-incident surface 112, and the surface of the lens 110 facing away from the light source 200 is the light-emitting surface 114, The light-emitting surface 114 corresponds to the light-incident surface 112, so that the light emitted by the light source 200 can be refracted and emitted through the light-incident surface 112 and the light-emitting surface 114 in sequence, so as to realize the light output of the lamp 10. Since the relative positions of the first arcuate line 112a and the second arcuate line 114a are different at different normal cross-sectional positions of the lens 110, the light emitted by the light source 200 is refracted by the different normal cross-sectional positions of the lens 110 to form different The light angle. In this way, when the lens 110 is adjusted to different positions relative to the light source 200 along the position adjustment direction, the light output angles of the light source 200 are different, and different light output angles of the lamp 10 can be adjusted to meet different light distribution angle requirements. It avoids the requirement of the traditional lamp 10 to achieve different light distribution angles by replacing different secondary lenses, and solves the problems of high mold cost and low timeliness.

In one of the embodiments, the extending direction of the groove-shaped structure 1120 of the light incident surface 112 coincides with the position adjustment direction of the lens 110, so that the lens 110 can be adjusted along the position adjustment direction, and the light source 200 can be refracted through different positions of the lens 110 Different light rays realize the continuity of the light emitted by the lens 110. In one of the embodiments, the extending direction of the groove-shaped structure 1120 of the light incident surface 112 is a curved direction. In this embodiment, the extending direction of the groove-shaped structure 1120 of the light incident surface 112 is an arc-shaped direction, such as a circular arc direction, that is, the groove-shaped structure 1120 of the light incident surface 112 extends along the circumferential direction of the annular lens group 100 . It can be understood that in other embodiments, the extending direction of the groove-shaped structure 1120 of the light incident surface 112 is not limited to a circular arc direction, and may also be a non-circular arc direction. In one of the embodiments, the extending direction of the groove-shaped structure 1120 of the light incident surface 112 may be an irregular closed curve direction.

In this embodiment, each lens 110 is connected to form a ring lens group 100 and covered on a plurality of light sources 200. Each lens 110 includes a first end surface 11a and a second end surface 11b. The first end surface 11a and the second end surface 11b are both normal surfaces. The groove-shaped structure 1120 of the light incident surface 112 penetrates the first end surface 11a and the second end surface 11b. The groove-shaped structure 1120 of the light incident surface 112 of each lens 110 forms a continuous annular groove, which allows the annular lens group 100 to continuously rotate in one direction, and each lens 110 can correspond to a different light source 200 in turn. In other embodiments, each lens 110 connected to form the annular lens group 100 may not include the first end surface 11a and the second end surface 11b, and the groove-shaped structure of the light incident surface 112 of each lens 110 may not communicate with each other. In this case, The rotation angle of the ring lens group 100 is limited by the extension length of the groove-shaped structure 1120 of the light incident surface 112.

As shown in FIG. 2, in order to increase the illumination angle range of the lamp 10, in one of the embodiments, the light-emitting surface 114 has an arc-shaped curved surface structure, so that the light-emitting surface 114 has a better light-emitting effect. In addition, the light rays passing through the light-emitting surface 114 of the lens 110 refract light rays of different angles at different positions at the same normal cross-sectional position, thereby increasing the illumination angle range of the lamp 10. In some embodiments, the light incident surface 112 and the light exit surface 114 are both arc-shaped curved surfaces.

As shown in FIGS. 3 to 6, in one of the embodiments, when the light source 200 corresponds to the end surface of the second end 11b of the lens 110, the light exit angle on the normal surface reaches the maximum. When the light source 200 corresponds to the end surface of the first end 11a of the lens 110, the light exit angle on the normal surface reaches the minimum. When the relative position of the light source 200 and the lens 110 is changed from the light source 200 corresponding to the first end surface 11a to the light source 200 corresponding to the second end surface 11b, the normal section of the lens 110 corresponding to the light source 200 passes through The light-emitting angle formed by the light emitted from the light-emitting surface 114 gradually becomes larger, and vice versa, the light-emitting angle gradually becomes smaller. In this way, during the adjustment process of the lens 110 along the position adjustment direction, the light exit angle on the normal cross-section decreases or increases.

In one of the embodiments, the lamp further includes a control unit, which is electrically connected to the control end of the driving mechanism 430, and is used to control the working state of the driving mechanism 430, for example, to control the start/stop and rotation direction of the driving mechanism 430. Speed and other information. The control unit controls the driving mechanism 430 to drive the annular lens group 100 to move relative to the light source 200 through the driving shaft 600.

In one of the embodiments, the lamp further includes an illuminance collection probe and a light intensity collection probe. The illuminance collection probe and the light intensity collection probe may both be connected to the control end of the driving mechanism 430, and the illuminance collection probe is used for In order to collect the environmental illuminance, the light intensity collection probe is used to collect the ambient light intensity, so that the illuminance collection probe and the light intensity collection probe can be better set. In one of the embodiments, the illuminance acquisition probe and the light intensity acquisition probe are both installed in the fixed frame, so that the illuminance acquisition probe can better collect the illuminance data of the surrounding environment of the lamp, and the light intensity acquisition probe is better Collect the light intensity data of the surrounding environment of the luminaire.

In this embodiment, a plurality of lenses 110 are connected together to form a closed structure. More specifically, a plurality of lenses 110 are connected in sequence to form a ring structure, so that the ring lens group 100 can be adjusted in the position adjustment direction by rotation, which improves The convenience of position adjustment of the ring lens group 100. In other embodiments, the shape formed by sequentially connecting the plurality of lenses 110 is not limited to a ring structure, and may also form a rectangular structure or other polygonal structures. Of course, in other embodiments, multiple lenses 110 may be connected in sequence without forming a closed structure. In another embodiment, a plurality of lenses 110 are sequentially connected to form an arc structure. In one of the embodiments, each light source 200 is correspondingly provided with a lens 110 so that the light emitted by the light source 200 can be refracted by the lens 110.

In one of the embodiments, the light output angle of each lens 110 ranges from 120° to 135°, and the light output angle range of the lens 110 is relatively large. As shown in FIG. 4, in one embodiment, the maximum light output angle of the lens 110 is 135°. When the position of the maximum light output angle of the lens 110 is adjusted along the position adjustment direction to correspond to the light source 200, the light output angle of the lens 110 is maximum. In this embodiment, when the light output angle of one of the lenses 110 is adjusted to the maximum, the light output angles of the other lenses 110 are adjusted to the maximum at the same time. At this time, the light output angle of the entire lamp is the maximum. At this time, the light spot diagram of the lens 110 is shown in Figure 7. As shown, the corresponding light distribution curve of the lens 110 is shown in FIG. 8.

In one embodiment, the minimum light output angle of each lens 110 is 120°. As shown in FIG. 6, when the position of the minimum light output angle of the lens 110 is adjusted along the position adjustment direction to correspond to the light source 200, the light output angle of the lens 110 is the smallest. In this embodiment, when the light output angle of one of the lenses 110 is adjusted to the minimum, the light output angles of the other lenses 110 are adjusted to the minimum at the same time. At this time, the light output angle of the entire lamp 10 is the smallest. The light spot diagram of the lens 110 at this time is shown in Fig. 9 As shown, the corresponding light distribution curve diagram of the lens 110 is shown in FIG. 10.

In one embodiment, the normal section corresponding to the position of the minimum light output angle of the lens 110 is two concentric semicircular structures, that is, the first arc line and the second arc of the normal section corresponding to the position of the minimum light output angle of the lens 110 The shape lines are all semi-circular arc lines. It can be understood that, in other embodiments, the normal cross section corresponding to the position of the minimum light output angle of the lens 110 is not limited to two concentric semicircular structures.

As shown in FIG. 5, in one embodiment, there is an intermediate light-emitting angle between the minimum light-emitting angle and the maximum light-emitting angle of the lens 110, and the intermediate light-emitting angle is 127.5°. When adjusting the position of the lens 110 along the position adjustment direction of the lens 110, when the light exit angle of the normal section of the lens 110 corresponding to the light source 200 is 127.5°, the light exit angle of the lens 110 at this time is the middle light exit angle, and the normal section position It is the middle light-emitting angle position, which can be between the maximum light-emitting angle position and the minimum light-emitting angle position. In this embodiment, when the light output angle of one lens 110 is adjusted to 127.5°, the light output angle of the other lenses 110 is adjusted to 127.5° at the same time. At this time, the light output angle of the entire ring lens group 100 structure is 127.5°. The light spot diagram of the lens 110 is shown in FIG. 11, and the corresponding light distribution curve diagram of the lens 110 is shown in FIG. 12.

It can be understood that, in other embodiments, the light output angle range of the lens 110 is not limited to 120°-135°. In other words, the maximum light output angle of the lens 110 is not limited to 135°. Similarly, the minimum light output angle of the lens 110 is not limited to 120°. Both the maximum light output angle and the minimum light output angle of the lens 110 can be adjusted by adjusting the structure of the lens 110. To make changes.

As shown in FIG. 1 and FIG. 13, in one of the embodiments, two adjacent lenses 110 are symmetrically arranged with respect to the normal cross section, so that two adjacent lenses 110 are symmetrically connected to form a lens group 110a opposite to a light source 200 Therefore, the annular lens group 100 can be adjusted along the positive and negative directions of the position adjustment direction of the lens 110, and both can realize the increase or decrease of the light output angle of the lamp.

In this embodiment, the geometric shapes of the multiple lenses 110 are the same, and the ends of the normal cross-sections of two adjacent lenses 110 with larger light-emitting angles are connected together. At this time, the normal cross-sections of the two adjacent lenses 110 are connected together. The ends with a smaller light-emitting angle are connected together, so that two adjacent lenses 110 are symmetrically arranged with respect to the normal cross-section. It can also be said that the first end surface 11a of each lens 110 is butted with the first end surface 11a of the adjacent lens 110, and the second end surface 11b of each lens 110 is butted with the second end surface 11b of the adjacent lens 110. Since the area of the normal cross section at both ends of each lens 110 is not equal, two adjacent lenses 110 are symmetrically arranged with respect to the normal cross section, so that the ends of the two adjacent lenses 110 with the same area can be connected together, so that the adjacent The connecting position of the two lens units 110 is relatively smooth, so that the structure of the entire ring lens group 100 is relatively smooth and coherent. In this embodiment, a plurality of lenses 110 are arrayed end to end along a closed circular track to form an annular lens group 100 that is attached in a ring shape. Of course, in other embodiments, the shape of the lens 110 may not be completely the same.

As shown in FIG. 14, in one of the embodiments, the fixing frame 120 includes a bracket 120a and a fixing ring 120b. The bracket 120a is connected to the drive shaft 600 and at least one lens 110 in the ring lens group 100, each The lenses 110 are all connected to the fixing ring 120b, so that the fixing frame 120 is respectively connected to the annular lens group 100 and the driving shaft 600, and at the same time, each lens 110 is reliably fixed on the fixing frame 120. In this embodiment, the plurality of lenses 110 are glued to the fixing ring 120b, so that the plurality of lenses 110 are all connected to the fixing ring 120b. In one embodiment, the fixed ring 120b has a circular ring structure.

In one of the embodiments, the bracket 120 a includes a rotating shaft 122 and a plurality of connecting plates 124, one end of each connecting plate is connected to the rotating shaft 122, and the other end is connected to the lens 110. In this embodiment, the number of connecting plates 124 is three. In an embodiment, the plurality of connecting plates 124 are distributed at intervals along the circumference of the rotating shaft 122 so that the fixing frame 120 is better connected to the lens 110. In other embodiments, the number of connecting plates 124 is not limited to three, and can also be four or other numbers.

In one of the embodiments, the number of light sources 200 is N. The number of lenses 110 is 2N. Two adjacent lenses 110 are arranged symmetrically with respect to the normal cross section, that is, two adjacent lenses 110 form a lens group 110a, and thus form N lens groups 110a. The N lens groups 110a correspond to the N light sources 200 in a one-to-one correspondence, that is, each light source 200 is arranged corresponding to a lens group 110a, so that the light emitted by each light source 200 can be refracted to the outside through a corresponding lens group 110a. Of course, in other embodiments, the number of light sources 200 and the number of lenses 110 may also be equal, for example.

As described above, each light source 200 is provided on the mounting board 300 and is electrically connected to the mounting board 300. In one of the embodiments, the mounting plate 300 is a circular plate, and the N light sources 200 are arranged on the mounting plate 300 at intervals along the circumferential direction of the mounting plate 300, so that the lamp 10 has a better lighting effect. In this embodiment, the mounting board 300 is a PCB, so that the thickness of the mounting board 300 is relatively thin. In one of the embodiments, the N light sources 200 are all arranged on the same surface of the mounting board, so that the N light sources 200 all emit light in the same direction.

In one of the embodiments, the lamp 10 further includes a heat sink 500 which is arranged on the backlight side of the mounting board 300. The radiator 500 dissipates the heat of the mounting board 300 and improves the heat dissipation performance of the lamp 10. In this embodiment, the backlight side of the mounting board 300 is attached to the heat sink 500 so that the heat on the mounting board 300 can be transferred to the heat sink 500 for heat dissipation. In one of the embodiments, the lamp may further include a thermally conductive adhesive layer, and the mounting board 300 is pasted on the heat sink 500 through the thermally conductive adhesive layer, so that the heat on the mounting board 300 is quickly transferred to the heat sink.

As shown in FIG. 1, in one of the embodiments, the mounting board 300 is provided with a first through hole 310, and the heat sink 500 is provided with a second through hole 410 communicating with the first through hole 310. The drive shaft 600 is respectively located in the first through hole 310 and the second through hole 410, and the drive shaft 600 is respectively connected to the mounting plate 300 and the heat sink 500 in a relatively rotatable manner, and the fixing frame 120 can be relative to the mounting plate 300 along with the drive shaft 600. , The radiator 500 rotates. Since the fixing frame 120 is connected to at least one lens 110, and a plurality of lenses 110 are connected together, the annular lens group 100 can rotate with the fixing frame 120, so that each lens group 110a moves relative to the corresponding light source 200, so as to realize the performance of the lamp 10 Adjustment of the light-emitting angle.

It can be understood that the driving shaft 600 can manually adjust the different light exit angles of the lamp 10 along the position adjustment direction. In other embodiments, the drive shaft 600 can also be driven by power to adjust different light exit angles of the lamp 10 along the position adjustment direction. Referring again to FIG. 1, in one embodiment, the driving mechanism 430 includes a motor 433 and a power output shaft 435, the power output shaft 435 is used to output the torque of the motor 433, and the power output shaft 435 is connected to the drive shaft 600. When the motor 435 rotates, the power output shaft 435 drives the drive shaft 600 and the fixing frame 120 to rotate, so that the ring lens group 100 rotates relative to the mounting plate 300, thereby realizing the adjustment of the light output angle of the lamp 10. In other embodiments, the motor 433 can also be replaced by a rotating cylinder.

In one of the embodiments, the lamp further includes a remote control center, and the control unit is electrically connected to the remote control center. In this embodiment, the control unit is connected to the control end of the driving mechanism 430. Specifically, in this embodiment, the control unit is electrically connected to the remote control center in a wired or wireless manner, for example. It can be understood that the remote control center may be a remote central centralized control center or an on-site remote control unit, which can remotely control the adjustment of the light output angles of multiple lamps in a single or area by sending a control signal to the control unit.

In one of the embodiments, the working process of the lamp is: the remote control center sends a signal of any angle within the adjustable angle range to the acquisition module of the control unit, and the control unit determines whether the angle is in the storage module. If there is this angle data in the storage module, the driving mechanism 430 drives the rotating shaft to drive the ring lens group 100 to rotate to the target angle position, light all the LEDs, and obtain the desired light output angle of the lamp. If there is no such angle data in the storage module, the detection module detects the current angular position of the ring lens group 100, and through multiple feedback optimizations between the detection module and the driving mechanism, the target angle position of the ring lens group 100 is obtained, and all the LEDs are lit, The desired light output angle of the lamp can be obtained, and the target angle position information at this time and the corresponding driving information can be stored at the same time, so that the conditions can be called in the next adjustment.

When there is no specific requirement for the light-emitting angle of the above-mentioned lamps, the touch screen or physical buttons of the remote control center can be used to send out stepless adjustment signals to adjust the light-emitting angle of the lamps from large to small or from small to large, until the effect of the use of the lamp on site Satisfaction so far. When it is necessary to uniformly adjust the lighting system composed of N lamps, the remote control center sends a unified control signal to each lamp to realize the adjustment of the N lamps.

In one of the embodiments, a lamp includes part or all of the structure of the following embodiments; that is, the lamp includes some or all of the following technical features. In one of the embodiments, the lamp includes a lens, a light source, a driving mechanism, a driving shaft, an illuminance collection probe, a light intensity collection probe, a control unit, a circuit board, a radiator, and a remote control center. In these existing products, the lens, the light source, the drive mechanism, the drive shaft, the illuminance collection probe, the light intensity collection probe, the control unit, the circuit board, and the heat sink Although the remote control center and the remote control center rely on computer programs to achieve their functions, the improvements of the embodiments of this application do not lie in these computer programs, because these computer programs are just simple use of existing programs, just as a computer program needs to have A computer with wireless Internet access can be realized by only adding a network card on the basis of the original hardware, which does not need to reprogram the network card. That is, the various embodiments of the present application do not require any special improvement to these computer programs.

The various technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the various technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, All should be considered as the scope of this specification.

The above-mentioned embodiments only express several implementation manners of the present application, and their description is relatively specific and detailed, but they should not be interpreted as a limitation on the scope of the patent application. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of this application, several modifications and improvements can be made, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be subject to the appended claims.

Claims

A lamp, characterized in that it comprises:

light source;

A lens, the relative position of the lens and the light source is continuously adjustable, and the light emitted by the light source is emitted through the light-emitting surface of the lens; the lens includes a position of a maximum light-emitting angle and a position of a minimum light-emitting angle;

When the light source corresponds to the position of the maximum light output angle, the lamp has the maximum light output angle; when the light source corresponds to the position of the minimum light output angle, the lamp has the minimum light output angle.
The lamp of claim 1, further comprising a drive mechanism and a drive shaft, the power output shaft of the drive mechanism is connected to the drive shaft, the drive shaft is connected to the lens, and the drive mechanism The lens is driven to move through the drive shaft, thereby adjusting the relative position of the lens and the light source.
The lamp of claim 2, wherein the driving mechanism drives the lens to rotate relative to the center line of the driving shaft through the driving shaft.
The lamp according to claim 2 or 3, further comprising an illuminance collection probe and a light intensity collection probe, the illuminance collection probe and the light intensity collection probe are both connected to the control end of the driving mechanism, so The illuminance collecting probe is used for collecting environmental illuminance, and the light intensity collecting probe is used for collecting the environmental light intensity.
The lamp according to claim 4, further comprising a control unit which is respectively connected to the control end of the illuminance collection probe, the light intensity collection probe and the drive mechanism, and the control unit The drive mechanism is controlled to drive the movement of the lens through the drive shaft.
The lamp according to claim 2 or 3, wherein the lens is mounted on a fixing frame, the lens is used to cover the light source, and the fixing frame is connected with the drive shaft so that the The drive shaft is connected with the lens.
The lamp according to claim 6, wherein the lens comprises a light-incident surface and a light-emitting surface, the light-incident surface is provided on a side of the lens facing the light source, and the light-incident surface is concave Groove structure, the contour of the light incident surface on the normal section perpendicular to the position adjustment direction of the lens is a first arc line;

The light-emitting surface is provided on a side of the lens facing away from the light source, and the contour of the light-emitting surface on a normal cross section perpendicular to the position adjustment direction of the lens is a second arc line;

At different normal cross-sectional positions of the lens, the relative positions of the first arc line and the second arc line are different to form different light exit angles.
The luminaire according to claim 6, further comprising an illuminance collection probe and a light intensity collection probe, the illuminance collection probe and the light intensity collection probe are both installed in the fixed frame, and the illuminance collection probe Both the light intensity collection probe and the control end of the driving mechanism are connected.
The lamp according to claim 6, wherein the number of the lenses is multiple, a plurality of the lenses are connected in sequence, and at least one of the lenses is connected to the fixing frame.
The lamp according to claim 9, wherein the fixing frame comprises a bracket and a fixing ring connected, the bracket is connected with the drive shaft and at least one of the lenses, and a plurality of the lenses are all connected to the The fixing ring is connected so that the fixing frame is respectively connected with the lens and the drive shaft.
A light fixture including:

A mounting board, at least one side of the mounting board is a light source side, at least one light source is arranged on the light source side, and the light source protrudes outward relative to the light source side;

At least one lens is used to cover the at least one light source; the lens includes a bottom surface, a light incident surface, and a light output surface, the bottom surface is joined to the light source side, and the light incident surface faces the light source and is The light-incident surface is in a groove-shaped structure; the light-emitting surface faces away from the light source;

The driving mechanism is used to drive at least one of the lens and the mounting plate to be able to move in a preset direction, so that the bottom surface of the lens and the light source side relatively slide, thereby adjusting the light source and the light source side. The relative position of the lens;

In a direction perpendicular to the preset direction, the shape of each cross-section of the lens that can correspond to the light source is not a uniform shape.
The lamp according to claim 11, wherein the lens comprises a first end surface and a second end surface, the first end surface and the second end surface are both perpendicular to the preset direction, and the light incident surface And the light-emitting surface are respectively connected between the first end surface and the second end surface, and the light-incident surface and the light-emitting surface are both curved structures;

When the relative position of the light source and the lens is changed from the light source corresponding to the first end surface to the light source corresponding to the second end surface, when the lens is opposite to the light source On the corresponding cross-section, the light exit angle formed by the light emitted through the light exit surface gradually becomes larger.
The lamp according to claim 12, wherein:

There are multiple light sources, and the multiple light sources are arranged on the light emitting side in a ring-shaped array;

There are a plurality of the lenses, and the plurality of lenses are connected to form a ring lens group and covered on the plurality of light sources;

The driving mechanism is used to drive at least one of the ring lens group or the mounting plate to rotate.
The lamp according to claim 13, wherein the geometric shapes of a plurality of the lenses are the same, the first end surface of each lens is in contact with the first end surface of the adjacent lens, and the second end surface of each lens It is in contact with the second end face of the adjacent lens.
The lamp according to claim 13, wherein the ring lens group is connected to a rotating shaft through a connecting plate, the rotating shaft is located at the center of the ring lens group, and the power output shaft of the driving mechanism is connected to the rotating shaft.
The lamp according to claim 15, wherein:

The light source is an LED lamp, and the mounting board is a circuit board; one side of the mounting board forms the light source side, and the other side forms a backlight side, and the backlight side is connected with a heat sink;

Both the mounting plate and the heat dissipation plate have through holes, and the power output shaft of the driving mechanism and the rotating shaft are connected by a drive shaft penetrating through the through holes.
The lamp according to any one of claims 11 to 16, wherein the lamp further comprises a control unit, the control unit is electrically connected to the driving mechanism and used for controlling the working state of the driving mechanism.
The lamp according to claim 17, wherein the lamp further comprises a remote control center, and the remote control center is electrically connected to the control unit for sending control signals to the control unit.
The lamp according to claim 17, wherein the lamp further comprises an illuminance collection probe and a light intensity collection probe, the illuminance collection probe and the light intensity collection probe are respectively electrically connected to the control unit, and the illuminance collection probe is used for collecting Environmental illuminance, the light intensity collection probe is used to collect the ambient light intensity.