WO2012025068A1 - Focusing mechanism for led spotlight - Google Patents
Focusing mechanism for led spotlight Download PDFInfo
- Publication number
- WO2012025068A1 WO2012025068A1 PCT/CN2011/079077 CN2011079077W WO2012025068A1 WO 2012025068 A1 WO2012025068 A1 WO 2012025068A1 CN 2011079077 W CN2011079077 W CN 2011079077W WO 2012025068 A1 WO2012025068 A1 WO 2012025068A1
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- WO
- WIPO (PCT)
- Prior art keywords
- lever
- light source
- end point
- led spotlight
- motor
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/40—Lighting for industrial, commercial, recreational or military use
- F21W2131/406—Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Definitions
- the invention relates to an LED spotlight focusing mechanism, in particular to an LED spotlight focusing mechanism which can realize smooth focusing, and belongs to the field of stage film and television lighting.
- the common tungsten halogen lamp focusing mechanism consists of a lens, a light source and a reflective bowl. Most of the following structures are used: The light source is mounted on the lamp holder, and a reflective bowl is mounted behind the lamp holder.
- the light source is located on the axis of the reflective bowl; between the lens and the base The position is relatively fixed; the lamp holder is mounted on the base, and the lamp holder is moved forward and backward with the light source and the reflective bowl by the screw adjustment to change the distance between the light source and the reflective bowl and the lens to adjust the focal length of the spotlight; The reflection and the lens are refracted to the stage, and the diameter of the illumination spot is adjusted to meet the performance needs.
- LED Light Emitting Diode
- LED lighting sources have gradually become Future development direction. Therefore, the spotlight with LED as the light source will become an important lamp in the stage lighting. Since the power of a single LED is small, only 1 ⁇ 5W, it is usually necessary to integrate multiple LEDs into the luminaire to increase power and increase brightness.
- a surface light source formed by integrating a plurality of LEDs on one plane because the light source area is large, the light source assembly and the lens assembly must be smoothly moved during focusing, and the focus adjustment of each light-emitting point is kept and the error is small. Affects the focusing effect of the spotlight to meet the requirements of use.
- the applicant discloses a zoom LED film and television stage spotlight with a focusing mechanism.
- the light source adopts an LED array module, and the light source is mounted on the fixing base.
- the fixing base is mounted on the light source bracket, and the movement of the light source on the lead screw is adjusted by the sliding seat, the lead screw and the adjusting button to realize focusing.
- the utility model adopts an aspherical lens and a threaded lens at the same time, and the scattered light of the surface light source is concentrated by irradiating the aspherical lens on the front surface of the LED array module, and then irradiated to the front threaded lens; by adjusting the light source component and the thread The relative distance of the lens to change the beam angle to achieve concentrating and astigmatism.
- This kind of focusing mechanism uses two lenses to achieve the focusing consistency, which makes the structure of the spotlight complicated. On the other hand, it is limited to the spotlight with the LED module as the light source and the power below 200W. The LED spotlight still can't achieve smooth focusing, so that the LEDs are in focus. Summary of the invention
- the present invention provides an LED spotlight focusing mechanism, which has a simple structure.
- the high-power LED spotlight can be smoothly adjusted, and the focus of each light-emitting point is good, and the brightness is high.
- An LED spotlight focusing mechanism comprises a light source housing, a light source assembly and a lens assembly located in the light source housing, and a motor driving device located outside the light source housing and having a motor shaft, wherein:
- the LED spotlight focusing mechanism further includes a lever connector located outside the light source housing,
- the lens assembly, the light source assembly, the lever connecting member and the motor driving device are axially distributed along a motor shaft in the motor driving device, and the motor driving device is connected to the lever connecting member.
- the lever connector has at least three connecting portions connected to one side of the light source housing, and at least three mating portions connected to the lens assembly, the connecting portion of the lever connecting member being perpendicular to The same plane of the axial direction is evenly distributed in the same plane, and the mating portion is located in another plane perpendicular to the axial direction and uniformly distributed in the other plane.
- the lever connecting member comprises a lever connecting plate and at least three levers of the same shape, the lever is evenly distributed on the lever connecting plate centered on an axis, the lever includes a first end point, a first a second end point and a fulcrum, wherein the first end point is connected to the lever connecting plate; the second end point is connected as the mating portion to the lens assembly through a connecting rod; the fulcrum serves as the connecting portion
- the surface of the light source housing is in contact.
- the LED spotlight focusing mechanism uses a guiding column to limit the rotation of the motor connecting plate screwed with the motor shaft, so that when the focusing is performed, the lever connecting plate fixedly connected thereto is moved in the axial direction; The difference between the upper force point and the force point to the fulcrum achieves fine adjustment of the focal length of the lens.
- the LED spotlight focusing mechanism uses a plurality of levers to simultaneously move the lens assembly along the axis, so that the movement of the lens assembly is more stable, thereby ensuring the focusing consistency of the surface light source in the LED spotlight.
- the invention is suitable for a plurality of low-power LEDs integrated in a single spotlight, in particular, a film and television stage spotlight with a large diameter and high power of the surface light source.
- the invention has the advantages of simple structure and low cost, solves the technical problem that the high-power LED spotlight is inaccurately adjusted, realizes the smooth focusing of the spotlight integrated with the LED on one plane, and ensures the uniformity of the spot of each LED.
- the focusing error is small, the light effect is good, and the brightness is high.
- 1 is an exploded perspective view of the focusing mechanism of the LED spotlight
- Figure 2 is an A-direction view of the focusing mechanism shown in Figure 1;
- Figure 3 is a cross-sectional view taken along line A-A of the focusing mechanism shown in Figure 1;
- Figure 4 is a partial enlarged view of the cross-sectional view taken along line A-A of Figure 3;
- Figure 5 is a B-direction view of the focusing mechanism shown in Figure 1;
- Figure 6 is a partial enlarged view of I ' shown in Figure 1;
- Figure 7 is an enlarged schematic view of the lever connecting plate.
- the embodiment provides an LED spotlight focusing mechanism, including a light source housing 16 , a light source assembly and a lens assembly located in the light source housing 16 , and a motor driving device and a lever located outside the light source housing 16 .
- the lens assembly, the light source assembly, the lever connecting member and the motor driving device are sequentially distributed axially along the motor shaft 12 in the motor driving device, that is, sequentially arranged from left to right in the 0-0' direction shown in FIG.
- the motor drive unit moves the lens assembly axially relative to the light source assembly via a lever connection member rotatably coupled thereto.
- the light source assembly includes a plurality of LEDs 4 and an aluminum-based circuit board 5 on which a plurality of LEDs 4 are soldered.
- the aluminum-based circuit board 5 is fastened within the light source housing 16.
- the light source housing 16 is provided with three through holes uniformly distributed. It will be understood that the present invention is not limited to aluminum-based circuit boards, and other circuit boards may be employed depending on the use environment and functional requirements. The number in the embodiment is merely an example, and a plurality of them may be selected according to actual conditions, and are not limited to three.
- the aluminum-based circuit board 5 is also provided with three connecting posts 17, and the arc (120 degrees) is evenly distributed on the circular aluminum-based circuit board 5.
- One end of the connecting post 17 (the left end in Fig. 1) extends from the surface of the aluminum-based circuit board 5 toward the lens holder 3; the other end (the right end in Fig. 1) extends from the other surface of the aluminum-based circuit board 5 toward the lever connecting plate 6.
- One end of the connecting post 17 has a thread for mating with the lock nut 7, and the other end has a hook for hooking with the lever connecting plate 6.
- the lens assembly includes a lens 1 corresponding to a plurality of LEDs 4, a lens platen 2, and a lens holder 3.
- the lens holder 3 has a plurality of grooves one-to-one corresponding to the LED 4 and the lens 1, and a through hole through which the connecting post 17 is passed.
- the hole position on the lens platen 2 corresponds to the hole position on the lens holder, and corresponds to the LED soldered on the aluminum-based circuit board.
- the lens 1 is fixed in the groove of the lens holder 3 through the lens platen 2.
- the lens assembly may also be a two-piece lens module including a lens holder (corresponding to the lens platen 2 and the lens holder 3) and a plurality of lenses 1 distributed on the lens holder. The position of the lens 1 in the lens module corresponds to a plurality of LEDs 4 in the light source assembly.
- the lever link comprises a lever link 6 and three identically shaped levers 9 of approximately triangular plates.
- the lever connecting plate 6 has a three-bladed substrate uniformly distributed in the same plane, and a bent portion that is vertically connected to each of the blades. When mounted on the motor shaft, the substrate is perpendicular to the motor shaft and the three bends are parallel to the motor shaft axis.
- Each of the bent portions is provided with a lever connecting hole 18, a lever
- the connecting hole 18 is a through hole for connecting the lever 9. Since the substrates are evenly distributed, the levers 9 mounted on the bent portions are also evenly distributed, so that the three levers 9 can be made to have the same force and the same deformation.
- a guide post connecting hole 19 is also formed in a substrate of the lever connecting plate 6 to cooperate with the guide post 15.
- the lever 9 has a triangular plate shape including three end points at the three corners of the triangular plate.
- the first end point (point a) is provided with a hole for screwing connection with the lever connecting hole 18 of the lever connecting plate 6 to realize a relatively rotatable connection between the lever 9 and the lever connecting plate 6.
- the second end point (point b) is elastically coupled to the lens assembly in a relatively rotatable manner (described later in detail); the fulcrum (point c) is a fulcrum projecting outward from the edge of the triangular plate as a connecting portion, and the light source housing 16 The side away from the lens assembly abuts and can slide relative to each other.
- a connecting hole is formed in the radial direction of the motor shaft and away from the motor shaft.
- the distance from the fulcrum to the light source housing 16 is less than the distance from the first end point and the second end point to the light source housing 16.
- the lever 9 and the lever connecting plate 6 can be connected by a separate screw (rotating shaft), or can be matched with the lever connecting hole 18 by providing an outward protrusion on the first end a of the lever 9 to realize the lever.
- the first end point a of the 9 is rotatable within the lever connecting hole 18.
- the three fulcrums in this embodiment are connected as a connecting portion to one side of the light source assembly, and all three fulcrums are located on the same plane.
- the three second end points in this embodiment serve as a mating portion through the connecting post 17 and the lens assembly. Connected, all three second endpoints are located in another plane.
- the point c of the fulcrum serves as a connection portion that interferes with one side (the right side in FIG. 1) of the light source housing 16, and always maintains the connection portion in the same plane during the axial movement, thereby supporting the light source assembly.
- the smoothness of the lens assembly during the movement that is, the axial movement relative to the motor shaft without deflection. This ensures that the distance between all of the LEDs 4 and the lens 1 is equal, and the uniformity of the emitted light is not affected by the movement of the light source assembly or the lens assembly.
- the first end of the lever 9 is rotatably coupled to the lever link 6 with its relative rotational direction being perpendicular to the motor shaft.
- the relative rotation direction of the first end point a and the lever connecting plate 6 is perpendicular to the plane of the paper (i.e., perpendicular to the motor shaft direction).
- the a end of the lever 9 and the lever connecting plate 6 can be connected in a relatively rotatable manner by screwing, movable riveting, sleeve and shaft connection.
- the second end point b of the lever 9 is elastically coupled to the lens holder 3 and the lens platen 2 via a connecting post 17 fixed to the aluminum-based circuit board 5.
- the connecting post 17 passes through the through hole in the lens holder 3 and the through hole in the lens pressing plate 2, and protrudes to the outside of the side of the lens pressing plate 2 remote from the lens holder 3.
- the coupling post 17 connects the lens holder 3 and the lens platen 2 together by the cooperation of the lock nut 7 and the connecting post 17.
- a positioning post 10 is axially disposed, and a spring 8 is disposed around the positioning post 10.
- the positioning post 10 extends through the lens holder 3 and the lens platen 2 to cooperate with the lock nut 7.
- the spring 8 is interposed between the aluminum-based circuit board 5 and the lens holder 3 with a certain pre-pressure so that pressure can be applied to the aluminum-based circuit board 5 and the lens holder 3.
- One end of the connecting post 17 extends toward the light source housing 16 to a hollow region in the middle of the positioning post 10 (as shown in FIG. 4), and is connected to the lock nut 7 through the positioning post 10.
- the other end of the connecting post 17, the hook portion is hooked into the connecting hole of the second end point b of the lever connecting plate 6 through a through hole provided in the light source housing 16.
- the lever link plate 6 By hooking, when the lens assembly is moved axially along the motor shaft, the lever link plate 6 can be rotated relative to the connecting post 17 in a plane containing the axial direction of the motor shaft.
- the second end point b of the lever 9 is rotatably coupled to the connecting post 17, and its relative rotational direction is perpendicular to the motor shaft, which is the same as the relative rotational direction of the first end of the lever 9 and the lever connecting plate 6 (ie, 1 in the direction perpendicular to the paper).
- the relative rotational direction of the second end point b of the lever 9 and the connecting post 17 is perpendicular to the plane of the paper.
- the fulcrum point c of the lever 9 is slidably contacted with the bottom surface of the light source housing 16.
- the point c protrudes from the ends a and b to be large enough so that the point of the fulcrum c interferes with the bottom surface of the light source housing 16 throughout the rotation of the lever 9 in a plane containing the axial direction of the motor shaft, and is always It is closer to the bottom surface of the light source housing 16 than the other portions of the lever 9.
- the distance from the a end to the point c of the fulcrum is greater than the distance from the b end to the c point of the fulcrum.
- the ratio of the distance from the a end of the lever 9 to the point c of the fulcrum and the distance from the b end to the c point of the fulcrum is between 6 and 7 times.
- the motor drive unit includes a motor 13, a motor bracket 14 and a motor lands 11.
- the motor 13 is fixed to the light source housing 16 via the motor bracket 14.
- the motor shaft 12 with external threads in the motor 13 is screwed to the motor lands 1 1 with internal threads to convert the rotation of the motor shaft of the motor 13 into the axial movement of the motor lands 11.
- Figures 6 and 7 show the structure of the lever connecting plate 6 and its connection with the motor drive unit.
- the projections on the motor connecting plate 11 pass through the positioning holes 20 of the lever connecting plate 6, and are fastened with screws to the threaded holes 21 of the motor connecting plate, thereby fixing the motor connecting plate 11 and the lever connecting plate 6 together.
- the motor lands 1 1 are driven by the motor shaft to move in the forward and backward directions (axial movement) in the axial direction of the motor shaft, and the lever connecting plate fixed to the motor lands 11 is pushed or pulled. 6 Perform the same direction of motion.
- the cylindrical guide post 15 is axially disposed, one end of which is fixed to the motor bracket 14 and the other end is fixed by the guide post connecting hole 19 on the lever connecting plate 6.
- the guiding post 15 can restrict the rotational movement of the lever connecting plate 6 along the motor rotating shaft to ensure that the lever connecting plate 6 is reliably axially along the motor rotating shaft. Exercise without rotating.
- the guide post 15 can also restrict the motor lands 11 from moving only axially when the motor shaft 12 rotates.
- the motor shaft 12 As the motor 13 rotates, the motor shaft 12 is also rotated, causing the motor lands 11 that are screwed to the motor shaft 12 to move axially.
- the lever connecting plate 6 fixed to the motor connecting plate 1 1 performs the same axial movement correspondingly, and the first end point (a end) of the lever 9 screwed to the lever connecting plate 6 is axially moved, and the lever is simultaneously
- the fulcrum of the 9 (c end) also slides along the side of the light source housing 16 in the radial direction of the motor shaft.
- the lever 9 moves with the fulcrum (c end) as a fulcrum, and the first end point and the second end point move in opposite directions.
- the guide post 15 functions to prevent the motor lands from rotating and converting into axial movement.
- the joints (three fulcrums) on the lever 9 for connection with the light source assembly are located in the same plane and are evenly distributed in the plane.
- the mating portions (three second end points) on the lever 9 for connection with the lens assembly are located on the other plane and are evenly distributed in the plane.
- the three end points of the engaging portion can also always have the same movement, thereby ensuring that the lens assembly is always in the plane perpendicular to the axial direction of the motor shaft, without the relative axial direction. Skew.
- the motor 13 rotates forward or reverse to drive the motor shaft 12 to rotate, so that the motor connecting plate 11 moves with the lever connecting plate 6 in the axial direction of the motor shaft 12; 6 to move the a end of the lever 9; the principle of the lever moves the b end of the lever 9 in a direction opposite to the direction of movement of the a end, and causes the connecting post 17 to move in the same axial direction as the direction of the b end, thereby also making the lens
- the components move in the same direction.
- the lever 9 fulcrum c acts on the bottom surface of the light source housing 16. When the a end of the lever 9 moves a large distance, the b end outside the fulcrum c moves a small distance, which is only about 1 / 6 of the former, thereby achieving fine adjustment.
- the purpose of the displacement of the lens assembly is only about 1 / 6 of the former, thereby achieving fine adjustment.
- the lens assembly can be moved by the lever 9 by the three-point positioning, and the three connecting posts 17 move along the axial direction without tilting or deformation, thereby achieving focusing. Consistent The property is better, and the focusing structure is more stable.
- the lever 9 drives the lens assembly to move axially relative to the light source assembly through the connecting post 17.
- the pair of oppositely applied forces applied to the lens assembly by the connecting post 17 and the spring 8 ensure that the distance between the LED 4 in the light source assembly and the lens 1 corresponding to the LED 4 is consistent during the focusing process, that is, The consistency of the focus.
- the principle of the three-point support plane is utilized, and the three levers 9 are used to keep the lens assembly and the light source assembly stable during the movement, without the axial deflection of the motor shaft. Moreover, a pair of opposing forces applied to the lens assembly by the spring 8 and the connecting post 17 results in a smoother movement of the lens assembly relative to the axial direction of the light source assembly.
- the focusing mechanism realizes the smooth fine focusing of the high-power LED spotlight, ensures the uniformity of the spot illuminated by each LED4, has good light effect and high brightness, and is suitable for the manufacture of high-power LED film and television lamps.
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- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
A focusing mechanism for an LED spotlight comprises a lens assembly (1 to 3), a light source assembly (4, 5), lever connectors (6, 9) and an electric motor drive device (11, 13, 14) axially disposed in succession along an electric motor shaft. The electric motor drive device is connected to the lever connectors. The lever connectors have at least three connection parts (c) connected to one side of a light source shell and at least three coordination parts (b) connected to the lens assembly. The connection parts of the lever connectors are located in the same plane perpendicular to the axial direction and evenly disposed in the same plane, and the coordination parts are located in another plane perpendicular to the axial direction and evenly disposed in the other plane. By application of the lever principle, the focusing mechanism for the LED spotlight achieves fine and stable focusing of a high power LED spotlight and ensures the evenness of the light spot illuminated by the large power LED spotlight with low focusing error, good lighting effects, and high brightness.
Description
一种 LED聚光灯调焦机构 技术领域 LED spotlight focusing mechanism
本发明涉及一种 LED聚光灯调焦机构,尤其涉及一种可以实现平稳调焦的 LED 聚光灯调焦机构, 属于舞台影视照明灯具领域。 The invention relates to an LED spotlight focusing mechanism, in particular to an LED spotlight focusing mechanism which can realize smooth focusing, and belongs to the field of stage film and television lighting.
背景技术 Background technique
传统的舞台聚光灯多采用点光源型的卤钨灯。常见的卤钨灯调焦机构由透镜、 光源、 反光碗组成, 大多采用如下结构: 光源安装在灯座上, 灯座后面安装有反 光碗, 光源位于反光碗中轴线上; 透镜与底座间的位置是相对固定的; 灯座安装 在底座上, 通过丝杠调节使灯座带着光源与反光碗前后移动, 以改变光源、 反光 碗与透镜之间的距离来调整聚光灯焦距; 光源经反光碗反射、 透镜折射照射到舞 台, 通过调整照射光斑直径满足演出需要。 Conventional stage spotlights mostly use a point source type tungsten halogen lamp. The common tungsten halogen lamp focusing mechanism consists of a lens, a light source and a reflective bowl. Most of the following structures are used: The light source is mounted on the lamp holder, and a reflective bowl is mounted behind the lamp holder. The light source is located on the axis of the reflective bowl; between the lens and the base The position is relatively fixed; the lamp holder is mounted on the base, and the lamp holder is moved forward and backward with the light source and the reflective bowl by the screw adjustment to change the distance between the light source and the reflective bowl and the lens to adjust the focal length of the spotlight; The reflection and the lens are refracted to the stage, and the diameter of the illumination spot is adjusted to meet the performance needs.
但是, 由于在光源灯座移动的过程中, 灯座穿孔与调焦螺杆和滑杆之间间隙 较大, 调焦时, 调焦螺杆的转动会使滑座板在移动过程中受力不均、 空行程大, 造成调焦过程中光源组件发生倾斜和振动, 从而导致光源组件中的灯泡中心定位 不够精确,影响调焦的准确性,所以,此种方法仅适合于点光源型聚光灯的调焦。 However, due to the large gap between the lamp holder perforation and the focusing screw and the sliding rod during the movement of the lamp holder, when the focus is adjusted, the rotation of the focusing screw may cause the sliding plate to be unevenly moved during the movement. The air stroke is large, causing the light source components to tilt and vibrate during the focusing process, which results in the bulb center positioning in the light source assembly is not accurate enough, which affects the accuracy of focusing. Therefore, this method is only suitable for the adjustment of the point source type spotlight. focal.
LED ( Light Emitt ing Diode , 发光二极管) 是一种能够将电能转化为可见光 的半导体, 它具有寿命长、 光效高、 无辐射与低功耗等优点, 以 LED为光源的照 明灯具已经逐渐成为未来的发展方向。 因此, 以 LED作光源的聚光灯必将成为舞 台布光中的一种重要灯具。 由于单颗 LED功率小, 仅 1〜5W, 通常需将多颗 LED 集成制作灯具, 来提高功率和增加亮度。 由多颗 LED集成在一个平面上形成的面 光源, 因为其光源面积大, 所以在调焦时必须使光源组件和透镜组件平稳移动, 保持各发光点的调焦一致性并且误差小, 才能不影响聚光灯的聚焦效果, 从而达 到使用要求。 LED (Light Emitting Diode) is a semiconductor that converts electrical energy into visible light. It has the advantages of long life, high luminous efficiency, no radiation and low power consumption. LED lighting sources have gradually become Future development direction. Therefore, the spotlight with LED as the light source will become an important lamp in the stage lighting. Since the power of a single LED is small, only 1~5W, it is usually necessary to integrate multiple LEDs into the luminaire to increase power and increase brightness. A surface light source formed by integrating a plurality of LEDs on one plane, because the light source area is large, the light source assembly and the lens assembly must be smoothly moved during focusing, and the focus adjustment of each light-emitting point is kept and the error is small. Affects the focusing effect of the spotlight to meet the requirements of use.
本申请人在专利号为 ZL 200820233726. X的中国实用新型专利中, 公开了一 种具有调焦机构的可变焦 LED影视舞台聚光灯。 其光源采用 LED阵列模组, 将光 源安装在固定座上, 固定座安装在光源支架上, 由滑座、 丝杠和调节钮调节光源 在丝杠上的移动以实现调焦。 此实用新型同时采用非球面透镜和螺纹透镜, 通过 在 LED阵列模组正面安装有非球面透镜的方式, 将面光源的散射光进行聚集, 再 照射到前方的螺纹透镜; 通过调节光源组件与螺纹透镜的相对距离, 来改变光束 角大小, 实现聚光和散光。 此种调焦机构, 使用了两个透镜来实现调焦一致性, 使聚光灯的结构变得复杂; 另一方面也仅局限于以 LED模组为光源且功率在 200W 以下的聚光灯,对大功率的 LED聚光灯仍无法实现平稳调焦,使各 LED调焦一致。 发明内容 In the Chinese utility model patent with the patent number ZL 200820233726. X, the applicant discloses a zoom LED film and television stage spotlight with a focusing mechanism. The light source adopts an LED array module, and the light source is mounted on the fixing base. The fixing base is mounted on the light source bracket, and the movement of the light source on the lead screw is adjusted by the sliding seat, the lead screw and the adjusting button to realize focusing. The utility model adopts an aspherical lens and a threaded lens at the same time, and the scattered light of the surface light source is concentrated by irradiating the aspherical lens on the front surface of the LED array module, and then irradiated to the front threaded lens; by adjusting the light source component and the thread The relative distance of the lens to change the beam angle to achieve concentrating and astigmatism. This kind of focusing mechanism uses two lenses to achieve the focusing consistency, which makes the structure of the spotlight complicated. On the other hand, it is limited to the spotlight with the LED module as the light source and the power below 200W. The LED spotlight still can't achieve smooth focusing, so that the LEDs are in focus. Summary of the invention
为解决以上技术问题,本发明提供了一种 LED聚光灯调焦机构,其结构简单,
可实现大功率 LED聚光灯平稳调焦, 各发光点的调焦一致性好, 亮度高。 In order to solve the above technical problem, the present invention provides an LED spotlight focusing mechanism, which has a simple structure. The high-power LED spotlight can be smoothly adjusted, and the focus of each light-emitting point is good, and the brightness is high.
为了实现上述的发明目的, 本发明采用下述的技术方案: In order to achieve the above object of the invention, the present invention adopts the following technical solutions:
一种 LED聚光灯调焦机构, 包括光源壳体、 位于光源壳体内的光源组件和透 镜组件、 位于光源壳体外且具有电机轴的电机驱动装置, 其特征在于: An LED spotlight focusing mechanism comprises a light source housing, a light source assembly and a lens assembly located in the light source housing, and a motor driving device located outside the light source housing and having a motor shaft, wherein:
所述 LED聚光灯调焦机构还包括位于光源壳体外的杠杆连接件, The LED spotlight focusing mechanism further includes a lever connector located outside the light source housing,
其中, 所述透镜组件、 所述光源组件、 所述杠杆连接件与所述电机驱动装置 依次沿所述电机驱动装置中的电机轴轴向分布, 所述电机驱动装置与所述杠杆连 接件连接,所述杠杆连接件具有至少三个与所述光源壳体的一侧相连接的连接部, 以及至少三个与所述透镜组件连接的配合部, 所述杠杆连接件的连接部位于垂直 于所述轴向的同一平面且在所述同一平面内均匀分布, 所述配合部位于垂直于所 述轴向的另一平面且在所述另一平面内均匀分布。 The lens assembly, the light source assembly, the lever connecting member and the motor driving device are axially distributed along a motor shaft in the motor driving device, and the motor driving device is connected to the lever connecting member. The lever connector has at least three connecting portions connected to one side of the light source housing, and at least three mating portions connected to the lens assembly, the connecting portion of the lever connecting member being perpendicular to The same plane of the axial direction is evenly distributed in the same plane, and the mating portion is located in another plane perpendicular to the axial direction and uniformly distributed in the other plane.
优选的, 所述杠杆连接件包括具有杠杆连接板和至少三根形状相同的杠杆, 所述杠杆以轴线为中心均匀分布地连接在所述杠杆连接板上, 所述杠杆包括第一 端点、 第二端点和支点, 所述第一端点与所述杠杆连接板连接; 所述第二端点作 为所述配合部通过连接杆与所述透镜组件连接; 所述支点作为所述连接部, 与所 述光源壳体表面接触。 Preferably, the lever connecting member comprises a lever connecting plate and at least three levers of the same shape, the lever is evenly distributed on the lever connecting plate centered on an axis, the lever includes a first end point, a first a second end point and a fulcrum, wherein the first end point is connected to the lever connecting plate; the second end point is connected as the mating portion to the lens assembly through a connecting rod; the fulcrum serves as the connecting portion The surface of the light source housing is in contact.
本发明所提供的 LED聚光灯调焦机构, 采用导向柱限制与电机轴螺接的电机 连接盘旋转, 从而使其在调焦时, 带动与之固接的杠杆连接板沿轴向运动; 通过 杠杆上受力点和施力点到支点距离的不同, 实现了透镜焦距的精细调节。 该 LED 聚光灯调焦机构采用多根杠杆同时带动透镜组件沿轴线运动, 使透镜组件的移动 更平稳, 进而保证了 LED聚光灯中面光源的调焦一致性。 The LED spotlight focusing mechanism provided by the invention uses a guiding column to limit the rotation of the motor connecting plate screwed with the motor shaft, so that when the focusing is performed, the lever connecting plate fixedly connected thereto is moved in the axial direction; The difference between the upper force point and the force point to the fulcrum achieves fine adjustment of the focal length of the lens. The LED spotlight focusing mechanism uses a plurality of levers to simultaneously move the lens assembly along the axis, so that the movement of the lens assembly is more stable, thereby ensuring the focusing consistency of the surface light source in the LED spotlight.
本发明适用于多颗小功率 LED集成在一个平面的聚光灯, 尤其是面光源直径 大且功率大的影视舞台聚光灯。 本发明结构简单, 成本低, 解决了大功率 LED聚 光灯调焦不准的技术难题, 实现了 LED集成在一个平面上的聚光灯的平稳调焦, 而且保证了各颗 LED照射出光斑的均匀性, 调焦误差小、 光效好、 亮度高。 The invention is suitable for a plurality of low-power LEDs integrated in a single spotlight, in particular, a film and television stage spotlight with a large diameter and high power of the surface light source. The invention has the advantages of simple structure and low cost, solves the technical problem that the high-power LED spotlight is inaccurately adjusted, realizes the smooth focusing of the spotlight integrated with the LED on one plane, and ensures the uniformity of the spot of each LED. The focusing error is small, the light effect is good, and the brightness is high.
附图说明 DRAWINGS
下面结合附图和具体实施例对本发明作进一步的详细说明。 The invention will be further described in detail below with reference to the drawings and specific embodiments.
图 1是本 LED聚光灯调焦机构的分解示意图; 1 is an exploded perspective view of the focusing mechanism of the LED spotlight;
图 2是图 1所示调焦机构的 A向视图; Figure 2 is an A-direction view of the focusing mechanism shown in Figure 1;
图 3是图 1所示调焦机构的 A-A剖视图; Figure 3 is a cross-sectional view taken along line A-A of the focusing mechanism shown in Figure 1;
图 4是图 3所示 A-A剖视图的局部放大图; Figure 4 is a partial enlarged view of the cross-sectional view taken along line A-A of Figure 3;
图 5是图 1所示调焦机构的 B向视图; Figure 5 is a B-direction view of the focusing mechanism shown in Figure 1;
图 6是图 1所示 I ' 局部放大图; Figure 6 is a partial enlarged view of I ' shown in Figure 1;
图 7是杠杆连接板的放大示意图。 Figure 7 is an enlarged schematic view of the lever connecting plate.
图中标号:
1: 透镜; 2 : 透镜压板; 3 : 透镜支架; 4: LED; 5: 铝基电路板; 6 : 杠杆连 接板; 7 : 锁紧螺母; 8 : 弹簧; 9 : 杠杆; 10 : 定位柱; 11 : 电机连接盘; 12 : 电 机轴; 13 : 电机; 14: 电机支架; 15 : 导向柱; 16 : 光源壳体; 17 : 连接柱; 18 : 杠杆连接孔; 19 : 导向柱连接孔; 20: 定位孔; 21 : 螺纹孔。 Number in the figure: 1: lens; 2: lens platen; 3: lens holder; 4: LED; 5: aluminum base board; 6: lever connection plate; 7: lock nut; 8: spring; 9: lever; 10: positioning post; 11 : motor lands; 12 : motor shaft; 13 : motor; 14: motor bracket; 15 : guide post; 16 : light source housing; 17 : connecting post; 18 : lever connecting hole; 19 : guide post connecting hole; : Positioning hole; 21 : Threaded hole.
具体实施方式 detailed description
如图 1所示,本实施例提供了一种 LED聚光灯调焦机构,包括光源壳体 16, 位于光源壳体 16内的光源组件和透镜组件, 位于光源壳体 16外的电机驱动装置 和杠杆连接件。 其中, 透镜组件、 光源组件、 杠杆连接件与电机驱动装置依次沿 电机驱动装置中的电机轴 12轴向分布, 即沿图 1中所示的 0-0' 方向从左到右依 次排列。 电机驱动装置通过与之可相对旋转地连接的杠杆连接件带动透镜组件相 对于光源组件沿轴向运动。 As shown in FIG. 1 , the embodiment provides an LED spotlight focusing mechanism, including a light source housing 16 , a light source assembly and a lens assembly located in the light source housing 16 , and a motor driving device and a lever located outside the light source housing 16 . Connector. Wherein, the lens assembly, the light source assembly, the lever connecting member and the motor driving device are sequentially distributed axially along the motor shaft 12 in the motor driving device, that is, sequentially arranged from left to right in the 0-0' direction shown in FIG. The motor drive unit moves the lens assembly axially relative to the light source assembly via a lever connection member rotatably coupled thereto.
如图 1和图 3所示, 光源组件包括多颗 LED 4和焊接了多颗 LED 4的铝基电 路板 5。 铝基电路板 5被紧固在光源壳体 16内。 光源壳体 16上开设有均匀分布 的三个贯穿孔。 可以理解, 本发明并不限于铝基电路板, 可以根据使用环境和功 能要求而采用其它电路板。 实施例中的数量仅仅用于举例, 根据实际情况可以选 择多个, 并不限定为三个。 As shown in FIGS. 1 and 3, the light source assembly includes a plurality of LEDs 4 and an aluminum-based circuit board 5 on which a plurality of LEDs 4 are soldered. The aluminum-based circuit board 5 is fastened within the light source housing 16. The light source housing 16 is provided with three through holes uniformly distributed. It will be understood that the present invention is not limited to aluminum-based circuit boards, and other circuit boards may be employed depending on the use environment and functional requirements. The number in the embodiment is merely an example, and a plurality of them may be selected according to actual conditions, and are not limited to three.
铝基电路板 5上还固设有三根连接柱 17, 等弧度 (120度) 均匀分布在圆形 的铝基电路板 5上。 连接柱 17的一端(图 1中的左端)从铝基电路板 5表面向透 镜支架 3延伸; 另一端 (图 1中的右端) 从铝基电路板 5另一表面向杠杆连接板 6延伸。 连接柱 17的一端具有用于与锁紧螺母 7配合的螺纹, 另一端具有用于与 杠杆连接板 6钩接的钩部。 The aluminum-based circuit board 5 is also provided with three connecting posts 17, and the arc (120 degrees) is evenly distributed on the circular aluminum-based circuit board 5. One end of the connecting post 17 (the left end in Fig. 1) extends from the surface of the aluminum-based circuit board 5 toward the lens holder 3; the other end (the right end in Fig. 1) extends from the other surface of the aluminum-based circuit board 5 toward the lever connecting plate 6. One end of the connecting post 17 has a thread for mating with the lock nut 7, and the other end has a hook for hooking with the lever connecting plate 6.
如图 1〜图 3所示, 透镜组件包括与多颗 LED 4—一对应的透镜 1、 透镜压板 2和透镜支架 3。 透镜支架 3具有与 LED 4和透镜 1一一对应的多个凹槽, 还开设 有供连接柱 17穿过的通孔。透镜压板 2上的孔位与透镜支架上的孔位相对应, 并 与焊接在铝基电路板上的 LED—一对应。 透镜 1通过透镜压板 2被固定在透镜支 架 3的凹槽内。通过锁紧螺母 7将透镜压板 2紧固到透镜支架 3上,使得透镜 1、 透镜压板 2和透镜支架 3成为一体, 以保证每一颗 LED 4都与一个透镜 1对应, LED 4发射的光线能正向投射到透镜 1 的中心。 此外, 取代前述三件式的透镜组 件, 透镜组件也可以是两件式的透镜模组, 包含透镜座 (相当于透镜压板 2和透 镜支架 3 )和分布在透镜座上的若干个透镜 1, 透镜模组中透镜 1的位置与光源组 件中的多颗 LED4——对应。 As shown in Figs. 1 to 3, the lens assembly includes a lens 1 corresponding to a plurality of LEDs 4, a lens platen 2, and a lens holder 3. The lens holder 3 has a plurality of grooves one-to-one corresponding to the LED 4 and the lens 1, and a through hole through which the connecting post 17 is passed. The hole position on the lens platen 2 corresponds to the hole position on the lens holder, and corresponds to the LED soldered on the aluminum-based circuit board. The lens 1 is fixed in the groove of the lens holder 3 through the lens platen 2. The lens platen 2 is fastened to the lens holder 3 by the lock nut 7, so that the lens 1, the lens platen 2 and the lens holder 3 are integrated to ensure that each of the LEDs 4 corresponds to one lens 1, and the light emitted by the LED 4 Can be projected forward to the center of the lens 1. In addition, instead of the aforementioned three-piece lens assembly, the lens assembly may also be a two-piece lens module including a lens holder (corresponding to the lens platen 2 and the lens holder 3) and a plurality of lenses 1 distributed on the lens holder. The position of the lens 1 in the lens module corresponds to a plurality of LEDs 4 in the light source assembly.
参见图 1、 图 6和图 7, 杠杆连接件包括杠杆连接板 6和三根形状相同的近似 为三角形板的杠杆 9。杠杆连接板 6具有在同一平面内均匀分布的三叶片的基片, 以及分别与各叶片垂直连接的弯折部。 安装在电机轴上的时候, 基片垂直于电机 轴, 三个弯折部都平行于电机轴轴向。 每个弯折部上开设有杠杆连接孔 18, 杠杆
连接孔 18为通孔, 用于连接杠杆 9。 因为基片是均匀分布的, 所以安装在弯折部 的杠杆 9也是均匀分布的, 从而可以实现三根杠杆 9受力相同, 变形相同。 杠杆 连接板 6的一个基片上还开设导向柱连接孔 19, 以与导向柱 15配合。 Referring to Figures 1, 6 and 7, the lever link comprises a lever link 6 and three identically shaped levers 9 of approximately triangular plates. The lever connecting plate 6 has a three-bladed substrate uniformly distributed in the same plane, and a bent portion that is vertically connected to each of the blades. When mounted on the motor shaft, the substrate is perpendicular to the motor shaft and the three bends are parallel to the motor shaft axis. Each of the bent portions is provided with a lever connecting hole 18, a lever The connecting hole 18 is a through hole for connecting the lever 9. Since the substrates are evenly distributed, the levers 9 mounted on the bent portions are also evenly distributed, so that the three levers 9 can be made to have the same force and the same deformation. A guide post connecting hole 19 is also formed in a substrate of the lever connecting plate 6 to cooperate with the guide post 15.
杠杆 9具有三角形板形状, 包括位于三角形板的三个角部的三个端点。 其中 第一端点 (a点) 开设有孔, 用于与杠杆连接板 6的杠杆连接孔 18通过螺接方式 连接在一起, 以实现杠杆 9与杠杆连接板 6之间的可相对旋转的连接; 第二端点 ( b点) 与透镜组件可相对旋转地弹性连接 (后文详述); 支点 (c点) 是从三角 形板边缘向外凸出的支点, 作为连接部, 与光源壳体 16的远离透镜组件的一侧相 抵接, 并可以相对滑动。 在每个杠杆连接板 6的第二端点 (b点), BP , 沿电机转 轴的径向而远离电机转轴的一端, 都开设连接孔。该支点到光源壳体 16的距离小 于第一端点和第二端点到光源壳体 16的距离。 可以理解, 杠杆 9与杠杆连接板 6 可通过单独的螺钉连接(旋转轴), 也可以通过在杠杆 9第一端点 a上设置具有向 外的突起, 与杠杆连接孔 18相互匹配, 实现杠杆 9的第一端点 a可在杠杆连接孔 18内转动。 The lever 9 has a triangular plate shape including three end points at the three corners of the triangular plate. The first end point (point a) is provided with a hole for screwing connection with the lever connecting hole 18 of the lever connecting plate 6 to realize a relatively rotatable connection between the lever 9 and the lever connecting plate 6. The second end point (point b) is elastically coupled to the lens assembly in a relatively rotatable manner (described later in detail); the fulcrum (point c) is a fulcrum projecting outward from the edge of the triangular plate as a connecting portion, and the light source housing 16 The side away from the lens assembly abuts and can slide relative to each other. At the second end point (point b) of each of the lever connecting plates 6, BP, a connecting hole is formed in the radial direction of the motor shaft and away from the motor shaft. The distance from the fulcrum to the light source housing 16 is less than the distance from the first end point and the second end point to the light source housing 16. It can be understood that the lever 9 and the lever connecting plate 6 can be connected by a separate screw (rotating shaft), or can be matched with the lever connecting hole 18 by providing an outward protrusion on the first end a of the lever 9 to realize the lever. The first end point a of the 9 is rotatable within the lever connecting hole 18.
本实施例中的三个支点作为连接部, 与光源组件的一侧相连接, 三个支点全 部位于同一平面; 本实施例中的三个第二端点作为配合部, 通过连接柱 17与透镜 组件连接, 三个第二端点全部位于另一平面。 The three fulcrums in this embodiment are connected as a connecting portion to one side of the light source assembly, and all three fulcrums are located on the same plane. The three second end points in this embodiment serve as a mating portion through the connecting post 17 and the lens assembly. Connected, all three second endpoints are located in another plane.
具体而言, 支点 c点作为连接部与光源壳体 16的一侧 (在图 1中为右侧)相 抵触, 并且在轴向运动的过程中始终保持连接部位于同一平面, 从而支撑光源组 件和透镜组件在移动过程中的平稳性, 即相对电机轴轴向移动而无偏斜。 这样可 以保证所有 LED 4与透镜 1的距离改变量相等, 射出的光线均匀性不受光源组件 或透镜组件的移动的影响。 Specifically, the point c of the fulcrum serves as a connection portion that interferes with one side (the right side in FIG. 1) of the light source housing 16, and always maintains the connection portion in the same plane during the axial movement, thereby supporting the light source assembly. And the smoothness of the lens assembly during the movement, that is, the axial movement relative to the motor shaft without deflection. This ensures that the distance between all of the LEDs 4 and the lens 1 is equal, and the uniformity of the emitted light is not affected by the movement of the light source assembly or the lens assembly.
如前述, 杠杆 9的第一端点与杠杆连接板 6可相对旋转地连接, 其相对旋转 方向垂直于电机轴。 以图 1中最下方的杠杆 9为例, 其第一端点 a点与杠杆连接 板 6的相对旋转方向是垂直于纸面的方向 (即, 垂直于电机轴方向)。 另外, 杠杆 9的 a端与杠杆连接板 6可以通过螺接、 活动铆接、 套筒与转轴连接等方式实现 可相对转动的连接。 As previously mentioned, the first end of the lever 9 is rotatably coupled to the lever link 6 with its relative rotational direction being perpendicular to the motor shaft. Taking the lowermost lever 9 in Fig. 1 as an example, the relative rotation direction of the first end point a and the lever connecting plate 6 is perpendicular to the plane of the paper (i.e., perpendicular to the motor shaft direction). In addition, the a end of the lever 9 and the lever connecting plate 6 can be connected in a relatively rotatable manner by screwing, movable riveting, sleeve and shaft connection.
如图 4所示, 杠杆 9的第二端点 b端通过固定在铝基电路板 5上的连接柱 17 与透镜支架 3和透镜压板 2弹性连接。连接柱 17穿过透镜支架 3上的通孔和透镜 压板 2上的穿孔, 伸出到透镜压板 2的远离透镜支架 3的一侧的外部。 通过锁紧 螺母 7与连接柱 17的配合, 连接柱 17将透镜支架 3和透镜压板 2连接在一起。 而且, 在铝基电路板 5与透镜支架 3之间的部位, 轴向设置有定位柱 10, 定位柱 10外围设置有弹簧 8。 定位柱 10贯穿透镜支架 3和透镜压板 2, 以便与锁紧螺母 7配合。 弹簧 8以一定的预压力被夹设在铝基电路板 5与透镜支架 3之间, 从而 可以向铝基电路板 5与透镜支架 3施加压力。
连接柱 17 的一端向光源壳体 16延伸到定位柱 10 中间的空心区域 (如图 4 所示), 并穿过定位柱 10与锁紧螺母 7连接。 连接柱 17的另一端, 钩部, 穿过光 源壳体 16上设置的贯穿孔钩接在杠杆连接板 6的第二端点 b端的连接孔内。通过 钩接的方式,在透镜组件沿电机轴轴向移动时,杠杆连接板 6可以相对连接柱 17, 在包含电机轴轴向的平面内旋转。杠杆 9的第二端点 b点与连接柱 17可相对旋转 地连接, 并且其相对旋转方向垂直于电机轴, 相同于杠杆 9的第一端点与杠杆连 接板 6的相对旋转方向 (即, 图 1中的垂直于纸面的方向)。 以图 1中最下方的杠 杆 9为例,杠杆 9的第二端点 b点与连接柱 17的相对旋转方向是垂直于纸面的方 向。 可以理解, 钩接的方式也可以被替换成活动铆接等方式, 只要能保证杠杆连 接板 6可以通过与连接柱 17的可旋转的连接, 对连接柱 17施加在电机轴轴向上 的前进或后退的力。 As shown in FIG. 4, the second end point b of the lever 9 is elastically coupled to the lens holder 3 and the lens platen 2 via a connecting post 17 fixed to the aluminum-based circuit board 5. The connecting post 17 passes through the through hole in the lens holder 3 and the through hole in the lens pressing plate 2, and protrudes to the outside of the side of the lens pressing plate 2 remote from the lens holder 3. The coupling post 17 connects the lens holder 3 and the lens platen 2 together by the cooperation of the lock nut 7 and the connecting post 17. Further, at a portion between the aluminum-based circuit board 5 and the lens holder 3, a positioning post 10 is axially disposed, and a spring 8 is disposed around the positioning post 10. The positioning post 10 extends through the lens holder 3 and the lens platen 2 to cooperate with the lock nut 7. The spring 8 is interposed between the aluminum-based circuit board 5 and the lens holder 3 with a certain pre-pressure so that pressure can be applied to the aluminum-based circuit board 5 and the lens holder 3. One end of the connecting post 17 extends toward the light source housing 16 to a hollow region in the middle of the positioning post 10 (as shown in FIG. 4), and is connected to the lock nut 7 through the positioning post 10. The other end of the connecting post 17, the hook portion, is hooked into the connecting hole of the second end point b of the lever connecting plate 6 through a through hole provided in the light source housing 16. By hooking, when the lens assembly is moved axially along the motor shaft, the lever link plate 6 can be rotated relative to the connecting post 17 in a plane containing the axial direction of the motor shaft. The second end point b of the lever 9 is rotatably coupled to the connecting post 17, and its relative rotational direction is perpendicular to the motor shaft, which is the same as the relative rotational direction of the first end of the lever 9 and the lever connecting plate 6 (ie, 1 in the direction perpendicular to the paper). Taking the lowermost lever 9 in Fig. 1 as an example, the relative rotational direction of the second end point b of the lever 9 and the connecting post 17 is perpendicular to the plane of the paper. It can be understood that the manner of hooking can also be replaced by movable riveting, etc., as long as the lever connecting plate 6 can be ensured that the connecting post 17 can be advanced in the axial direction of the motor shaft through the rotatable connection with the connecting post 17. The force of retreat.
杠杆 9的支点 c点与光源壳体 16的底面可滑动式接触在一起。 c点凸出于 a 端和 b端的程度要足够大, 以使在杠杆 9沿包含电机轴轴向的平面内旋转的整个 过程中, 支点 c点都与光源壳体 16的底面抵触, 并且始终比杠杆 9的其它部位更 靠近光源壳体 16的底面。 The fulcrum point c of the lever 9 is slidably contacted with the bottom surface of the light source housing 16. The point c protrudes from the ends a and b to be large enough so that the point of the fulcrum c interferes with the bottom surface of the light source housing 16 throughout the rotation of the lever 9 in a plane containing the axial direction of the motor shaft, and is always It is closer to the bottom surface of the light source housing 16 than the other portions of the lever 9.
此外, a端到支点 c点的距离大于 b端到支点 c点的距离。 如图 1所示, 杠 杆 9的 a端到支点 c点的距离与 b端到支点 c点的距离的比值在 6〜 7倍之间。 当杠杆 9的 a端移动较大距离时, b端则移动很小距离, 仅约为前者的 1/6, 从而 达到精细调节透镜组件移动的目的。 In addition, the distance from the a end to the point c of the fulcrum is greater than the distance from the b end to the c point of the fulcrum. As shown in Fig. 1, the ratio of the distance from the a end of the lever 9 to the point c of the fulcrum and the distance from the b end to the c point of the fulcrum is between 6 and 7 times. When the a end of the lever 9 is moved a large distance, the b end moves a small distance, which is only about 1/6 of the former, thereby achieving the purpose of finely adjusting the movement of the lens assembly.
图 1和图 6中显示, 电机驱动装置包括电机 13、 电机支架 14和电机连接盘 11。 电机 13通过电机支架 14与光源壳体 16固接。 电机 13中带有外螺纹的电机 轴 12与带有内螺纹的电机连接盘 1 1螺接,从而将电机 13的电机转轴的转动转换 成电机连接盘 11的轴向运动。 As shown in Figs. 1 and 6, the motor drive unit includes a motor 13, a motor bracket 14 and a motor lands 11. The motor 13 is fixed to the light source housing 16 via the motor bracket 14. The motor shaft 12 with external threads in the motor 13 is screwed to the motor lands 1 1 with internal threads to convert the rotation of the motor shaft of the motor 13 into the axial movement of the motor lands 11.
图 6和图 7显示了杠杆连接板 6的结构及其与电机驱动装置的连接关系。 电 机连接盘 11上的凸起穿过杠杆连接板 6的定位孔 20, 用螺钉与电机连接盘的螺 纹孔 21紧固, 由此将电机连接盘 11与杠杆连接板 6固接在一起。在电机 13的转 动时, 电机连接盘 1 1 被电机转轴带动而在电机转轴的轴向进行前后方向的运动 (轴向运动), 就推动或拉动与电机连接盘 11固定在一起的杠杆连接板 6进行相 同方向的运动。 Figures 6 and 7 show the structure of the lever connecting plate 6 and its connection with the motor drive unit. The projections on the motor connecting plate 11 pass through the positioning holes 20 of the lever connecting plate 6, and are fastened with screws to the threaded holes 21 of the motor connecting plate, thereby fixing the motor connecting plate 11 and the lever connecting plate 6 together. When the motor 13 is rotated, the motor lands 1 1 are driven by the motor shaft to move in the forward and backward directions (axial movement) in the axial direction of the motor shaft, and the lever connecting plate fixed to the motor lands 11 is pushed or pulled. 6 Perform the same direction of motion.
同时, 柱形的导向柱 15轴向设置, 其一端固定在电机支架 14上, 另一端穿 过杠杆连接板 6上的导向柱连接孔 19而被固定。 当杠杆连接板 6在电机连接盘 11 的带动下进行轴向运动时, 导向柱 15可以限制杠杆连接板 6的沿电机转轴的 旋转运动,以确保杠杆连接板 6可靠地沿电机转轴进行轴向运动而不做旋转运动。 此外, 由于电机连接盘 11与杠杆连接板 6是固接在一起的, 导向柱 15还可以限 制电机连接盘 11在电机轴 12旋转时仅作轴向运动。
随着电机 13的旋转, 电机轴 12同样在旋转, 使得与电机轴 12螺接的电机连 接盘 1 1进行轴向运动。 与电机连接盘 1 1固接的杠杆连接板 6相应进行相同的轴 向运动, 与杠杆连接板 6螺接的杠杆 9的第一端点 (a端) 随之进行轴向运动的 同时, 杠杆 9的支点 (c端) 还在电机转轴的径向上沿光源壳体 16的一侧滑动。 杠杆 9 以支点 (c端) 为支点运动, 第一端点和第二端点在相反方向上运动。 具 体而言, 当电机连接盘 1 1、 杠杆连接板 6和杠杆 9的第一端点 (a端) 向图 1的 左侧前进时, 杠杆 9的第二端点 (b端) 向相反方向, 图 1 的右侧运动。 杠杆 9 的第二端点 (b端) 向图 1右侧运动时, 通过与第二端点钩接并且与透镜组件连 接的连接柱 17对透镜组件施加向图 1右侧的拉力。此时, 透镜组件对弹簧 8施加 压力, 弹簧 8压縮。 透镜组件在与电机连接盘 1 1、 杠杆连接板 6移动方向相反的 方向上移动。 At the same time, the cylindrical guide post 15 is axially disposed, one end of which is fixed to the motor bracket 14 and the other end is fixed by the guide post connecting hole 19 on the lever connecting plate 6. When the lever connecting plate 6 is axially moved by the motor connecting plate 11, the guiding post 15 can restrict the rotational movement of the lever connecting plate 6 along the motor rotating shaft to ensure that the lever connecting plate 6 is reliably axially along the motor rotating shaft. Exercise without rotating. Further, since the motor lands 11 and the lever connecting plate 6 are fixed together, the guide post 15 can also restrict the motor lands 11 from moving only axially when the motor shaft 12 rotates. As the motor 13 rotates, the motor shaft 12 is also rotated, causing the motor lands 11 that are screwed to the motor shaft 12 to move axially. The lever connecting plate 6 fixed to the motor connecting plate 1 1 performs the same axial movement correspondingly, and the first end point (a end) of the lever 9 screwed to the lever connecting plate 6 is axially moved, and the lever is simultaneously The fulcrum of the 9 (c end) also slides along the side of the light source housing 16 in the radial direction of the motor shaft. The lever 9 moves with the fulcrum (c end) as a fulcrum, and the first end point and the second end point move in opposite directions. Specifically, when the first end (a end) of the motor lands 1 1 , the lever connecting plate 6 and the lever 9 are advanced toward the left side of FIG. 1 , the second end (b end) of the lever 9 is in the opposite direction, The right side of Figure 1 is moving. When the second end point (b end) of the lever 9 is moved to the right side of Fig. 1, the pulling force to the right side of Fig. 1 is applied to the lens assembly through the connecting post 17 hooked to the second end point and connected to the lens assembly. At this time, the lens assembly applies pressure to the spring 8, and the spring 8 compresses. The lens assembly moves in a direction opposite to the direction in which the motor lands 1 1 and the lever connecting plate 6 move.
另一方面, 当电机连接盘 1 1、 杠杆连接板 6和杠杆 9的第一端点 (a端) 向 图 1的右侧前进时, 杠杆 9的第二端点 (b端) 向图 1的左侧运动。 连接柱 17不 再对透镜组件施加压力。 弹簧释放透镜组件, 在弹簧 8的弹力作用下, 透镜组件 被施加向图 1左侧的作用力。 这样就实现了透镜组件在左右两个方向上的移动, 从而使其相对光源 4发生距离改变, 实现调焦功能。 On the other hand, when the first end (a end) of the motor lands 1 1 , the lever connecting plate 6 and the lever 9 are advanced toward the right side of FIG. 1, the second end (b end) of the lever 9 is directed to FIG. Left side movement. The connecting post 17 no longer applies pressure to the lens assembly. The spring releases the lens assembly, and under the elastic force of the spring 8, the lens assembly is applied to the force on the left side of Fig. 1. In this way, the movement of the lens assembly in the left and right directions is realized, so that the distance with respect to the light source 4 is changed, and the focusing function is realized.
在电机连接盘 1 1和杠杆连接板 6进行轴向运动的过程中, 导向柱 15发挥阻 止电机连接盘旋转而转换成轴向运动的作用。 During the axial movement of the motor lands 1 1 and the lever connecting plate 6, the guide post 15 functions to prevent the motor lands from rotating and converting into axial movement.
杠杆 9上的用于与光源组件连接的连接部 (三个支点) 位于同一平面, 并且 均匀分布在该平面内。杠杆 9上的用于与透镜组件连接的配合部(三个第二端点) 位于另一平面, 并且均匀分布在该平面内。 基于上述结构特征, 当杠杆连接板 6 在轴向运动时, 连接部的三个端点可以始终保持具有相同的移动, 从而保证光源 组件始终位于垂直于电机转轴的轴向的平面内, 没有相对轴向的偏斜。 类似的, 当杠杆连接板 6在轴向运动时, 配合部的三个端点也可以始终保持具有相同的移 动, 从而保证透镜组件始终位于垂直于电机转轴的轴向的平面内, 没有相对轴向 的偏斜。 The joints (three fulcrums) on the lever 9 for connection with the light source assembly are located in the same plane and are evenly distributed in the plane. The mating portions (three second end points) on the lever 9 for connection with the lens assembly are located on the other plane and are evenly distributed in the plane. Based on the above structural features, when the lever connecting plate 6 is moved in the axial direction, the three end points of the connecting portion can always maintain the same movement, thereby ensuring that the light source assembly is always in a plane perpendicular to the axial direction of the motor shaft, and there is no relative axis. The skew of the direction. Similarly, when the lever connecting plate 6 is moved in the axial direction, the three end points of the engaging portion can also always have the same movement, thereby ensuring that the lens assembly is always in the plane perpendicular to the axial direction of the motor shaft, without the relative axial direction. Skew.
如上述结构所示, 当需要调焦时, 电机 13正转或反转带动电机轴 12旋转, 从而使电机连接盘 1 1带着杠杆连接板 6沿电机轴 12的轴向移动; 杠杆连接板 6 使杠杆 9的 a端跟着移动; 由于杠杆原理使杠杆 9的 b端向与 a端运动方向相反 的方向移动, 并使得连接柱 17做与 b端方向相同的轴向移动, 从而也使得透镜组 件在相同方向上移动。 杠杆 9支点 c作用在光源壳体 16的底面上, 当杠杆 9的 a 端移动较大距离, 支点 c外的 b端则移动很小距离, 仅约为前者的 1 /6, 从而达 到精细调节透镜组件的位移的目的。 As shown in the above structure, when focusing is required, the motor 13 rotates forward or reverse to drive the motor shaft 12 to rotate, so that the motor connecting plate 11 moves with the lever connecting plate 6 in the axial direction of the motor shaft 12; 6 to move the a end of the lever 9; the principle of the lever moves the b end of the lever 9 in a direction opposite to the direction of movement of the a end, and causes the connecting post 17 to move in the same axial direction as the direction of the b end, thereby also making the lens The components move in the same direction. The lever 9 fulcrum c acts on the bottom surface of the light source housing 16. When the a end of the lever 9 moves a large distance, the b end outside the fulcrum c moves a small distance, which is only about 1 / 6 of the former, thereby achieving fine adjustment. The purpose of the displacement of the lens assembly.
在调焦过程中, 通过三点定位的方式, 使透镜组件可以在杠杆 9的带动下, 随着三个连接柱 17—起沿着轴向移动, 不会产生倾斜或变形, 从而实现调焦一致
性较好, 而且调焦结构更稳定。 此外, 杠杆 9通过连接柱 17带动透镜组件相对于 光源组件做轴向运动。通过连接柱 17与弹簧 8对透镜组件施加的一对方向相反的 力, 保证了光源组件中的 LED4和与 LED4—一对应的透镜 1之间的距离在调焦过 程中变化一致, 即实现了调焦的一致性。 During the focusing process, the lens assembly can be moved by the lever 9 by the three-point positioning, and the three connecting posts 17 move along the axial direction without tilting or deformation, thereby achieving focusing. Consistent The property is better, and the focusing structure is more stable. In addition, the lever 9 drives the lens assembly to move axially relative to the light source assembly through the connecting post 17. The pair of oppositely applied forces applied to the lens assembly by the connecting post 17 and the spring 8 ensure that the distance between the LED 4 in the light source assembly and the lens 1 corresponding to the LED 4 is consistent during the focusing process, that is, The consistency of the focus.
由此可见, 本实施例中利用三点支撑平面的原理, 利用三根杠杆 9保持透镜 组件和光源组件在移动过程中平稳, 无相对电机轴轴向的偏斜。 而且, 利用弹簧 8与连接柱 17对透镜组件施加的一对反向的作用力, 使得透镜组件相对于光源组 件的轴向移动更平稳。 It can be seen that in the present embodiment, the principle of the three-point support plane is utilized, and the three levers 9 are used to keep the lens assembly and the light source assembly stable during the movement, without the axial deflection of the motor shaft. Moreover, a pair of opposing forces applied to the lens assembly by the spring 8 and the connecting post 17 results in a smoother movement of the lens assembly relative to the axial direction of the light source assembly.
本调焦机构实现了大功率 LED聚光灯的平稳精细调焦,保证了各颗 LED4照射 出的光斑均匀性, 光效好, 亮度高, 适用于大功率 LED影视灯具制造。 The focusing mechanism realizes the smooth fine focusing of the high-power LED spotlight, ensures the uniformity of the spot illuminated by each LED4, has good light effect and high brightness, and is suitable for the manufacture of high-power LED film and television lamps.
上述实施例对本发明的最佳实施方式作了详细说明, 并非对本发明的限制, 如可根据 LED面光源直径的大小, 对杠杆数目以及杠杆的形状做调整。 对本领域 的一般技术人员而言, 在不背离本发明实质精神的前提下对它所做的任何显而易 见的改动, 都将构成对本发明专利权的侵犯, 将承担相应的法律责任。
The above embodiments illustrate the preferred embodiments of the present invention in detail, and are not intended to limit the present invention. For example, the number of levers and the shape of the lever can be adjusted according to the size of the LED surface light source. Any obvious changes made to the invention without departing from the spirit of the invention will constitute an infringement of the patent right of the present invention and will bear corresponding legal liabilities.
Claims
1 . 一种 LED聚光灯调焦机构, 包括光源壳体、 位于光源壳体内的光源组件和 透镜组件、 位于光源壳体外且具有电机轴的电机驱动装置, 其特征在于: What is claimed is: 1. An LED spotlight focusing mechanism comprising a light source housing, a light source assembly and a lens assembly located in the light source housing, and a motor driving device located outside the light source housing and having a motor shaft, wherein:
所述 LED聚光灯调焦机构还包括位于光源壳体外的杠杆连接件, 其中, 所述 透镜组件、 所述光源组件、 所述杠杆连接件与所述电机驱动装置依次沿所述电机 驱动装置中的电机轴轴向分布, 所述电机驱动装置与所述杠杆连接件连接, 所述 杠杆连接件具有至少三个与所述光源壳体的一侧相连接的连接部, 以及至少三个 与所述透镜组件连接的配合部, 所述杠杆连接件的连接部位于垂直于所述轴向的 同一平面且在所述同一平面内均匀分布, 所述配合部位于垂直于所述轴向的另一 平面且在所述另一平面内均匀分布; The LED spotlight focusing mechanism further includes a lever connector located outside the light source housing, wherein the lens assembly, the light source assembly, the lever connecting member and the motor driving device are sequentially along the motor driving device The motor shaft is axially distributed, the motor driving device is connected to the lever connecting member, the lever connecting member has at least three connecting portions connected to one side of the light source housing, and at least three and a mating portion of the lens assembly, the connecting portion of the lever connecting member is located in a same plane perpendicular to the axial direction and uniformly distributed in the same plane, and the mating portion is located in another plane perpendicular to the axial direction And evenly distributed in the other plane;
所述杠杆连接件包括具有杠杆连接板和至少三根形状相同的杠杆, 所述杠杆 以轴线为中心均匀分布地连接在所述杠杆连接板上; The lever connector includes a lever connecting plate and at least three levers of the same shape, and the lever is evenly distributed on the lever connecting plate centered on the axis;
所述杠杆包括第一端点、 第二端点和一个支点, 所述第一端点与所述杠杆连 接板连接; 所述第二端点作为所述配合部与所述透镜组件连接; 所述支点作为所 述连接部, 与所述光源壳体表面接触; The lever includes a first end point, a second end point, and a fulcrum, the first end point is coupled to the lever connecting plate; the second end point is coupled to the lens assembly as the mating portion; As the connecting portion, in contact with the surface of the light source housing;
所述第一端点、 第二端点和一个支点呈三角形分布, 所述支点到所述光源壳 体的距离小于所述第一端点和所述第二端点到所述光源壳体的距离, 所述第一端 点到所述支点的距离大于所述第二端点到所述支点的距离; The first end point, the second end point, and a fulcrum are distributed in a triangle, and a distance from the fulcrum to the light source housing is smaller than a distance between the first end point and the second end point to the light source housing. The distance from the first end point to the fulcrum is greater than the distance from the second end point to the fulcrum;
所述支点可相对滑动地连接所述光源壳体的远离所述透镜组件的一侧; 所述 第一端点与所述杠杆连接板可相对旋转地连接, 并且所述第一端点与所述杠杆连 接板的相对旋转方向垂直于所述电机轴;所述第二端点可相对所述透镜组件旋转, 并且旋转方向垂直于所述电机轴; The fulcrum is slidably coupled to a side of the light source housing remote from the lens assembly; the first end point is rotatably coupled to the lever connecting plate, and the first end point is The relative rotational direction of the lever connecting plate is perpendicular to the motor shaft; the second end point is rotatable relative to the lens assembly, and the direction of rotation is perpendicular to the motor shaft;
所述杠杆是三角形板, 所述第一端点、 所述第二端点和所述支点分别位于所 述三角形板的三个角部, 所述第一端点开设有用于将所述杠杆与所述杠杆连接板 可旋转地连接在一起的孔; 所述第二端点开设有用于将所述杠杆与所述透镜组件 连接在一起的孔, 所述支点从所在角部凸向所述光源壳体; The lever is a triangular plate, and the first end point, the second end point and the fulcrum are respectively located at three corners of the triangular plate, and the first end point is opened for the lever and the a hole in which the lever connecting plates are rotatably coupled together; the second end is provided with a hole for connecting the lever and the lens assembly, the fulcrum protruding from the corner to the light source housing ;
所述杠杆连接板具有在同一平面内均匀分布的至少三个叶片的基片, 以及与 所述叶片同等数量的弯折部, 所述弯折部分别垂直连接于对应的一个所述叶片且 平行于所述电机轴轴向, 所述弯折部上开设有用于连接所述杠杆的第一端点的杠 杆连接孔。 The lever connecting plate has a substrate of at least three blades uniformly distributed in the same plane, and an equal number of bent portions corresponding to the blades, the bent portions being vertically connected to the corresponding one of the blades and parallel In the axial direction of the motor shaft, a lever connecting hole for connecting the first end of the lever is opened on the bent portion.
2. 一种 LED聚光灯调焦机构, 包括光源壳体、 位于光源壳体内的光源组件和 透镜组件、 位于光源壳体外且具有电机轴的电机驱动装置, 其特征在于: 2. An LED spotlight focusing mechanism, comprising a light source housing, a light source assembly and a lens assembly located in the light source housing, and a motor driving device located outside the light source housing and having a motor shaft, wherein:
所述 LED聚光灯调焦机构还包括位于光源壳体外的杠杆连接件, 其中, 所述 透镜组件、 所述光源组件、 所述杠杆连接件与所述电机驱动装置依次沿所述电机 驱动装置中的电机轴轴向分布, 所述电机驱动装置与所述杠杆连接件连接, 所述 杠杆连接件具有至少三个与所述光源壳体的一侧相连接的连接部, 以及至少三个 与所述透镜组件连接的配合部, 所述杠杆连接件的连接部位于垂直于所述轴向的 同一平面且在所述同一平面内均匀分布, 所述配合部位于垂直于所述轴向的另一 平面且在所述另一平面内均匀分布。 The LED spotlight focusing mechanism further includes a lever connector located outside the light source housing, wherein the lens assembly, the light source assembly, the lever connecting member and the motor driving device sequentially follow the motor a motor shaft axially distributed in the driving device, the motor driving device being connected to the lever connecting member, the lever connecting member having at least three connecting portions connected to one side of the light source housing, and at least three a mating portion connected to the lens assembly, the connecting portion of the lever connecting member is located in a same plane perpendicular to the axial direction and uniformly distributed in the same plane, and the mating portion is located perpendicular to the axial direction The other plane is evenly distributed in the other plane.
3. 如权利要求 2所述的 LED聚光灯调焦机构, 其特征在于: 3. The LED spotlight focusing mechanism according to claim 2, wherein:
所述杠杆连接件包括具有杠杆连接板和至少三根形状相同的杠杆, 所述杠杆 以轴线为中心均匀分布地连接在所述杠杆连接板上, The lever connector includes a lever connecting plate and at least three levers of the same shape, the lever being evenly distributed on the lever connecting plate centered on the axis,
所述杠杆包括第一端点、 第二端点和一个支点, 所述第一端点与所述杠杆连 接板连接; 所述第二端点作为所述配合部与所述透镜组件连接; 所述支点作为所 述连接部, 与所述光源壳体表面接触。 The lever includes a first end point, a second end point, and a fulcrum, the first end point is coupled to the lever connecting plate; the second end point is coupled to the lens assembly as the mating portion; The connecting portion is in contact with the surface of the light source housing.
4. 如权利要求 3所述的 LED聚光灯调焦机构, 其特征在于: 4. The LED spotlight focusing mechanism according to claim 3, wherein:
所述第一端点、 第二端点和一个支点呈三角形分布, 所述支点到所述光源壳 体的距离小于所述第一端点和所述第二端点到所述光源壳体的距离。 The first end point, the second end point and a fulcrum are distributed in a triangle, and the distance from the fulcrum to the light source housing is smaller than the distance between the first end point and the second end point to the light source housing.
5. 如权利要求 3所述的 LED聚光灯调焦机构, 其特征在于: 5. The LED spotlight focusing mechanism according to claim 3, wherein:
所述支点可相对滑动地连接所述光源壳体的远离所述透镜组件的一侧。 The fulcrum is slidably coupled to a side of the light source housing remote from the lens assembly.
6. 如权利要求 3所述的 LED聚光灯调焦机构, 其特征在于: 6. The LED spotlight focusing mechanism according to claim 3, wherein:
所述第一端点与所述杠杆连接板可相对旋转地连接, 并且所述第一端点与所 述杠杆连接板的相对旋转方向垂直于所述电机轴。 The first end point is rotatably coupled to the lever connecting plate, and a relative rotational direction of the first end point and the lever connecting plate is perpendicular to the motor shaft.
7. 如权利要求 6所述的 LED聚光灯调焦机构, 其特征在于: 7. The LED spotlight focusing mechanism according to claim 6, wherein:
所述第二端点相对所述透镜组件旋转, 并且旋转方向垂直于所述电机轴。 The second end point rotates relative to the lens assembly and the direction of rotation is perpendicular to the motor shaft.
8. 如权利要求 3所述的 LED聚光灯调焦机构, 其特征在于: 8. The LED spotlight focusing mechanism according to claim 3, wherein:
所述第一端点到所述支点的距离大于所述第二端点到所述支点的距离。 The distance from the first end point to the fulcrum is greater than the distance from the second end point to the fulcrum.
9. 如权利要求 3所述的 LED聚光灯调焦机构, 其特征在于: 9. The LED spotlight focusing mechanism according to claim 3, wherein:
所述杠杆是三角形板, 所述第一端点、 所述第二端点和所述支点分别位于所 述三角形板的三个角部, 所述第一端点开设有用于将所述杠杆与所述杠杆连接板 可旋转地连接在一起的孔; 所述第二端点开设有用于将所述杠杆与所述透镜组件 连接在一起的孔, 所述支点从所在角部凸向所述光源壳体。 The lever is a triangular plate, and the first end point, the second end point and the fulcrum are respectively located at three corners of the triangular plate, and the first end point is opened for the lever and the a hole in which the lever connecting plates are rotatably coupled together; the second end is provided with a hole for connecting the lever and the lens assembly, the fulcrum protruding from the corner to the light source housing .
10. 如权利要求 3所述的 LED聚光灯调焦机构, 其特征在于: 10. The LED spotlight focusing mechanism according to claim 3, wherein:
所述杠杆连接板具有在同一平面内均匀分布的至少三个叶片的基片, 以及与 所述叶片同等数量的弯折部, 所述弯折部分别垂直连接于对应的一个所述叶片且 平行于所述电机轴轴向, 所述弯折部上开设有用于连接所述杠杆的第一端点的杠 杆连接孔。 The lever connecting plate has a substrate of at least three blades uniformly distributed in the same plane, and an equal number of bent portions corresponding to the blades, the bent portions being vertically connected to the corresponding one of the blades and parallel In the axial direction of the motor shaft, a lever connecting hole for connecting the first end of the lever is opened on the bent portion.
1 1 . 如权利要求 3所述的 LED聚光灯调焦机构, 其特征在于: 1 1. The LED spotlight focusing mechanism according to claim 3, wherein:
所述 LED聚光灯调焦机构还包括连接柱, 所述连接柱连接所述杠杆的第二端 点以及所述透镜组件。 The LED spotlight focusing mechanism further includes a connecting post, the connecting post connecting the second end of the lever Point and the lens assembly.
12. 如权利要求 11所述的 LED聚光灯调焦机构, 其特征在于: 12. The LED spotlight focusing mechanism according to claim 11, wherein:
在所述光源组件和所述透镜组件之间还包括与所述连接柱数目相同的弹簧和 定位柱; 所述弹簧套设在所述定位柱外围, 所述弹簧的一端抵压在所述光源组件 上, 另一端抵压在所述透镜组件上。 Between the light source assembly and the lens assembly, a spring and a positioning post having the same number as the connecting post are further included; the spring is sleeved on the periphery of the positioning post, and one end of the spring is pressed against the light source On the assembly, the other end is pressed against the lens assembly.
13. 如权利要求 12所述的 LED聚光灯调焦机构, 其特征在于: 13. The LED spotlight focusing mechanism according to claim 12, wherein:
所述 LED聚光灯调焦机构还包括锁紧螺母, 所述连接柱穿过所述定位柱和所 述透镜组件, 与所述锁紧螺母连接。 The LED spotlight focusing mechanism further includes a lock nut that passes through the positioning post and the lens assembly and is coupled to the lock nut.
14. 如权利要求 3所述的 LED聚光灯调焦机构, 其特征在于: 14. The LED spotlight focusing mechanism according to claim 3, wherein:
所述电机驱动装置包括电机、 电机支架和电机连接盘, 所述电机通过所述电 机支架与所述光源壳体固接, 所述电机的电机轴与所述电机连接盘螺接, 所述电 机连接盘与所述杠杆连接板固接, 所述电机连接盘与所述杠杆连接板均套设在所 述电机轴上。 The motor driving device includes a motor, a motor bracket and a motor connecting plate, wherein the motor is fixed to the light source housing through the motor bracket, and a motor shaft of the motor is screwed to the motor connecting disc, the motor The connecting plate is fixed to the lever connecting plate, and the motor connecting plate and the lever connecting plate are sleeved on the motor shaft.
15. 如权利要求 14所述的 LED聚光灯调焦机构, 其特征在于: 15. The LED spotlight focusing mechanism according to claim 14, wherein:
所述 LED聚光灯调焦机构还包括沿所述电机轴轴向设置的导向柱, 所述导向 柱的一端固定在所述电机支架上, 另一端固定在所述杠杆连接板上。 The LED spotlight focusing mechanism further includes a guide post disposed axially along the motor shaft, one end of the guide post being fixed to the motor bracket, and the other end being fixed to the lever connecting plate.
16. —种 LED聚光灯, 其特征在于具有如权利要求 1〜15中任意一项所述的 LED聚光灯调焦机构。 An LED spotlight characterized by having the LED spotlight focusing mechanism according to any one of claims 1 to 15.
Priority Applications (1)
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EP11819443.0A EP2610552B1 (en) | 2010-08-27 | 2011-08-29 | Focusing mechanism for led spotlight |
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CN201020507737XU CN201748343U (en) | 2010-08-27 | 2010-08-27 | Focusing mechanism of LED spotlight |
CN201020507737.X | 2010-08-27 |
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WO2012025068A1 true WO2012025068A1 (en) | 2012-03-01 |
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PCT/CN2011/079077 WO2012025068A1 (en) | 2010-08-27 | 2011-08-29 | Focusing mechanism for led spotlight |
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EP (1) | EP2610552B1 (en) |
CN (1) | CN201748343U (en) |
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Cited By (1)
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CN114294590A (en) * | 2021-12-30 | 2022-04-08 | 兰州万里航空机电有限责任公司 | Laser search lamp with focusing function |
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CN201748343U (en) * | 2010-08-27 | 2011-02-16 | 北京星光影视设备科技股份有限公司 | Focusing mechanism of LED spotlight |
CN102287751B (en) * | 2011-08-03 | 2013-07-10 | 广州市雅江光电设备有限公司 | Light-emitting diode (LED) mixed color lamp |
CN102767781A (en) * | 2012-06-15 | 2012-11-07 | 佛山市开信光电有限公司 | LED spotlight capable of generating obviously dynamic light beams |
CN104180201B (en) * | 2013-05-22 | 2016-08-17 | 深圳市宝泰光电科技有限公司 | A kind of LED lamp being easy to focusing |
CN104296103A (en) * | 2013-07-18 | 2015-01-21 | 海洋王(东莞)照明科技有限公司 | Lamp cooling structure |
NL2022296B1 (en) * | 2018-12-24 | 2020-07-21 | Schreder Sa | Luminaire system with leveraged displacement |
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Also Published As
Publication number | Publication date |
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EP2610552A1 (en) | 2013-07-03 |
EP2610552B1 (en) | 2016-01-20 |
CN201748343U (en) | 2011-02-16 |
EP2610552A4 (en) | 2014-09-17 |
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