CN112748624A - Multicolor point light source device - Google Patents
Multicolor point light source device Download PDFInfo
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- CN112748624A CN112748624A CN202011638461.3A CN202011638461A CN112748624A CN 112748624 A CN112748624 A CN 112748624A CN 202011638461 A CN202011638461 A CN 202011638461A CN 112748624 A CN112748624 A CN 112748624A
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- light
- light source
- pcb board
- source device
- emitting chips
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
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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
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
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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
- F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
- F21V2200/40—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of hollow light guides
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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]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
本发明属于视觉检测技术领域，具体公开了一种多色点光源装置，包括：光源，光源内设置有多个不同发光芯片，多个发光芯片能够单独控制；PCB板，光源设置于PCB板上，PCB板上设置有与多个发光芯片对应的多个控制开关；扩散板，扩散板用于扩散光源发射的光线；聚光透镜，聚光透镜用于汇聚光线使发光角度收缩；导光镜管，导光镜管用于对光线进行导向并反射光线，增强光照强度。该装置为一个光源内包含多种颜色，光源可以单色独立控制使用，也可以多色同时亮灯，混合成其他需要的光照颜色使用，其能够实现单色或混色自由切换照射的功能，且光斑居中，光源体积小，制造成本低，仅一个光源可以适用于多种特征检测，有效节省了工位。
The invention belongs to the technical field of visual inspection, and specifically discloses a multi-color point light source device, comprising: a light source, a plurality of different light-emitting chips are arranged in the light source, and the plurality of light-emitting chips can be controlled independently; a PCB board, the light source is arranged on the PCB board , the PCB board is provided with a plurality of control switches corresponding to the plurality of light-emitting chips; the diffusion plate, the diffusion plate is used to diffuse the light emitted by the light source; the condenser lens, the condenser lens is used to condense the light to shrink the light-emitting angle; the light guide mirror The light guide tube is used to guide and reflect the light to enhance the light intensity. The device contains a variety of colors in a light source, the light source can be controlled and used independently in a single color, or it can be illuminated in multiple colors at the same time and mixed into other required lighting colors for use. It can realize the function of free switching of single color or mixed color illumination, and The light spot is centered, the light source is small in size, and the manufacturing cost is low. Only one light source can be applied to a variety of feature detection, which effectively saves work stations.
Description
Technical Field
The invention belongs to the technical field of visual detection, and particularly relates to a multicolor point light source device.
Background
With the high automation of production lines in industrial production, the detection means of the quality of products in factories are more and more demanding. At present, the field of detecting the quality of products by using image processing and computer vision technology is increasing, for example, the detection of surface defects of printed products such as produced metal (especially steel plate) surface, paper and the like, textiles, ceramic tiles, glass, wood and the like is widely applied to various visual detection projects due to the small volume and high brightness of the point light source.
At present, the light source generally all is single colour design, when being surveyed the product surface and have multiple colour characteristic, need use the light source of different colours to filter and be surveyed product surface colour characteristic, and the light source of single colour just can't satisfy the application, and the traditional solution of visual detection equipment is that the light source that uses a plurality of different colours switches back and forth and takes a picture or set up a plurality of stations and take a picture in turn, leads to detecting with high costs, and is inefficient, and the effect is poor. The industry also has a solution, it uses a plurality of different color light sources to change the direction of light emission by using the prism module, but the light source luminous efficiency is low, the position of the luminous source of different color is far away from the light outlet, the light efficiency is very low after the light is reflected by the beam splitter, resulting in low light source brightness; and the product has large volume and high manufacturing cost.
Disclosure of Invention
The invention aims to: aiming at the defects of the prior art, the multi-color point light source device is provided, can realize free switching illumination of single color or mixed color, and has the advantages of centered light spots, small volume and low manufacturing cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
a multi-color point light source device comprising: the LED lamp comprises a light source, a plurality of light emitting chips with different colors are arranged in the light source, and the plurality of light emitting chips can be controlled independently; the light source is arranged on the PCB, and a plurality of control switches for controlling the light-emitting chips are arranged on the PCB; a diffusion plate for diffusing the light emitted from the light source; the condensing lens is used for converging light rays to enable the light-emitting angle to be contracted; the light guide mirror tube is used for guiding light and reflecting the light, so that the illumination intensity is enhanced.
Wherein, a light source, a diffusion plate, a condensing lens and a light guide mirror tube are sequentially arranged along the light emitting path; the diffusion plate can also be other optical films with light diffusion effects, the light source is welded on the PCB, different light emitting chips in the light source are arranged in a matrix, the light emitting chips are not positioned in the center central position of the light source, light is diffused by the diffusion plate, so that light spots formed by light emitted by the light source are centered, when the light emitting chips generate light with various colors, the superposition of light with various colors is ensured, the detection effect is improved, the light emitted by the light source is diffused by the surface of the diffusion plate to form diffused light, the diffused light is received by the condenser lens, when the diffused light passes through a parabolic surface of the condenser lens, the light emitting angle is contracted, the light is condensed and irradiated, the illumination effect is effectively enhanced, the utilization rate of the light source is improved, and after the light is converged by the condenser lens, the light is divided into two types of light, one is central irradiation light, the other is astigmatism irradiated to two side faces, the central irradiation light is directly led out through the light guide lens tube, and the astigmatism irradiated to the two side faces is reflected through the inner wall of the light guide lens tube, so that the astigmatism is totally reflected to emit light, the luminous intensity of a light source is enhanced, and the light utilization rate is effectively improved.
The light source, the PCB, the diffusion plate, the condensing lens and the light guide mirror tube are fixedly arranged in the first containing cavity. The structure design has the advantages that the whole device is compact in structure, the size is reduced, the occupied space is effectively saved, the sealing performance of the whole device is guaranteed, sundries such as dust are effectively prevented from entering the device, the practicability of the device is improved, the use safety of the device is improved, and the phenomena such as electric shock and electric leakage are effectively avoided.
Further, the base is fixedly arranged at one end of the PCB. Due to the structural design, the firmness of the PCB is improved, the phenomenon that the PCB deviates due to collision in the carrying or using process of the device is effectively avoided, and the firmness of the whole device is improved.
Further, the base is provided with a plurality of cooling fins, and a plurality of cooling fins are used for heat dissipation. The PCB board is at the working process, produces too much heat, through designing a plurality of fin, makes the heat give off, has improved the life of PCB board, has effectively prolonged the life of device.
Furthermore, the plurality of light emitting chips are arranged in a matrix in the light source. The light-emitting chips are orderly arranged, so that the arrangement of circuits is facilitated, and the control of the light-emitting chips is facilitated.
Further, the light source is a multi-color LED lamp. The multi-color LED lamp is characterized in that a single LED comprises a plurality of light-emitting chips with different colors, and the multi-color LED lamp is a lamp with multiple colors such as two colors, three colors or four colors.
Furthermore, the inner wall of the light guide mirror tube is provided with a reflecting surface, and the reflecting surface is used for reflecting light rays. The light source has the advantages that the structural design not only plays a role in guiding light, but also can enhance the light-emitting rate, reduce the scattering of the light and improve the utilization rate of the light source.
Further, the light emitting angle is 10 to 30 °. The light-emitting angle is too large, the available central light is less, and the utilization rate of the light source is lower; if the light emitting angle is too small, the light spots are too concentrated, and the light spots are not uniform.
The invention has the beneficial effects that: the invention provides a multicolor point light source device, comprising: the LED lamp comprises a light source, a plurality of LED chips and a control circuit, wherein the light source is internally provided with a plurality of different LED chips which can be controlled independently; the light source is arranged on the PCB, and a plurality of control switches corresponding to the plurality of light-emitting chips are arranged on the PCB; the diffusion plate is used for diffusing the light rays emitted by the light source; the condensing lens is used for converging light rays to enable the light-emitting angle to be contracted; the light guide mirror tube is used for guiding light and reflecting the light, and the illumination intensity is enhanced. The multi-color point light source device comprises a plurality of colors in one light source, the light source can be independently controlled to use in a single color mode, and can also be simultaneously lightened in a multi-color mode to be mixed into other required illumination colors for use, the function of freely switching illumination in a single color mode or a mixed color mode can be realized, light spots are centered, the volume of the light source is small, the manufacturing cost is low, only one light source can be suitable for detecting various characteristics, and stations are effectively saved.
Drawings
FIG. 1 is a schematic structural diagram of a multi-color point light source device according to an embodiment of the present invention;
FIG. 2 is a diagram showing the effect of light spots irradiated by a monochromatic light source and a multicolor source without a diffuser plate;
fig. 3 is a light spot effect diagram of a multi-color point light source device with a diffuser plate added.
Wherein:
1-a light source; 2-a PCB board; 3-a diffusion plate; 4-a condenser lens; 5-a light guide mirror tube;
6-a base; 7-a housing; 8-a first cavity; 11-a first monochromatic spot; 12-a second monochromatic spot; 13-a third monochromatic spot; 14-mixed color spots.
Detailed Description
As used in this specification and the appended claims, certain terms are used to refer to particular components, and it will be appreciated by those skilled in the art that a manufacturer may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", horizontal ", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The present invention will be described in further detail with reference to the following drawings and specific examples, but the present invention is not limited thereto.
As shown in fig. 1 to 3, the present invention provides a multi-color point light source device, including: the LED lamp comprises a light source 1, wherein a plurality of light-emitting chips with different colors are arranged in the light source 1, and the plurality of light-emitting chips can be independently controlled; the LED lamp comprises a PCB (printed circuit board) 2, wherein a light source 1 is arranged on the PCB 2, and a plurality of control switches for controlling light-emitting chips are arranged on the PCB 2; a diffusion plate 3, the diffusion plate 3 being used for diffusing the light emitted by the light source 1; the condensing lens 4 is used for condensing light rays to enable the light-emitting angle to shrink; and the light guide mirror tube 5 is used for guiding light and reflecting the light, so that the illumination intensity is enhanced.
Wherein, a light source 1, a diffusion plate 3, a condensing lens 4 and a light guide lens tube 5 are sequentially arranged along the light emitting path; the diffusion plate 3 can also be other optical films with diffusion effect to light, the light source 1 is welded on the PCB 2, different light emitting chips in the light source 1 are arranged in a matrix, a plurality of light emitting chips are not positioned in the center central position of the light source 1, light spots formed by the light emitted by the light source 1 are centered by arranging the diffusion plate 3 to diffuse light, when the plurality of light emitting chips generate light with various colors, the superposition of a plurality of color light is ensured, the detection effect is improved, the light emitted by the light source 1 is diffused through the surface of the diffusion plate 3 to form diffused light, the diffusion plate 3 of the device can play a role of hiding lamp core bright points, the centers of the light spots of various colors are converged in the same area, the diffused light is received through the condenser lens 4, when the diffused light passes through the paraboloid of the condenser lens 4, the light has a contracted light emitting angle, the light is irradiated in a gathering way, the utilization rate of the light source 1 is improved, after the light is converged by the condenser lens 4, the light is divided into two types of light, one type is central irradiation light, the other type is astigmatism irradiated to two side surfaces, the central irradiation light is directly guided out through the light guide mirror tube 5, the astigmatism irradiated to the two side surfaces is reflected through the inner wall of the light guide mirror tube 5, the astigmatism is totally reflected to emit light, the luminous intensity of the light source 1 is enhanced, and the utilization rate of the light is effectively improved.
Preferably, the LED lamp further comprises a base 6 and a shell 7, wherein the shell 7 is fixedly connected with the base 6 and forms a first containing cavity 8, and the light source 1, the PCB 2, the diffusion plate 3, the condensing lens 4 and the light guide mirror tube 5 are fixedly arranged in the first containing cavity 8. The structure design has the advantages that the whole device is compact in structure, the size is reduced, the occupied space is effectively saved, the sealing performance of the whole device is guaranteed, sundries such as dust are effectively prevented from entering the device, the practicability of the device is improved, the use safety of the device is improved, and the phenomena such as electric shock and electric leakage are effectively avoided.
Preferably, the base 6 is fixedly disposed at one end of the PCB board 2. This kind of structural design has increased PCB board 2's fastness, thereby effectively avoids the device to appear the phenomenon that the collision leads to PCB board 2 skew to appear in transport or use, has improved whole device's fastness.
Preferably, the base 6 is provided with a plurality of heat radiating fins for radiating heat. The PCB board 2 produces too much heat in the course of the work, through designing a plurality of fin, makes the heat give off, has improved the life of PCB board 2, has effectively prolonged the life of device.
Preferably, a plurality of light emitting chips are arranged in a matrix within the light source 1. A plurality of luminous chips are arranged orderly and orderly, so that the arrangement of circuits is facilitated, and meanwhile, the control over the plurality of luminous chips is also facilitated.
Preferably, the light source 1 is a multi-color LED lamp. The multi-color LED lamp is characterized in that a single LED comprises a plurality of light-emitting chips with different colors, and the multi-color LED lamp is a lamp with multiple colors such as two colors, three colors or four colors.
Preferably, the inner wall of the light guide mirror tube 5 is provided with a reflecting surface, and the reflecting surface is used for reflecting light rays. The structure design not only plays a guiding role for light, but also can enhance the light-emitting rate, reduce the scattering of the light and improve the utilization rate of the light source 1.
Preferably, the light emission angle is 10 ° to 30 °. Wherein, the larger the light-emitting angle is, the less the available central light is, and the lower the utilization rate of the light source 1 is; if the light emitting angle is too small, the light spots are too concentrated, and the light spots are not uniform.
Variations and modifications to the above-described embodiments may also occur to those skilled in the art, which fall within the scope of the invention as disclosed and taught herein. Therefore, the present invention is not limited to the above-mentioned embodiments, and any obvious improvement, replacement or modification made by those skilled in the art based on the present invention is within the protection scope of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011638461.3A CN112748624A (en) | 2020-12-31 | 2020-12-31 | Multicolor point light source device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011638461.3A CN112748624A (en) | 2020-12-31 | 2020-12-31 | Multicolor point light source device |
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| CN112748624A true CN112748624A (en) | 2021-05-04 |
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| CN202011638461.3A Pending CN112748624A (en) | 2020-12-31 | 2020-12-31 | Multicolor point light source device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201680171U (en) * | 2009-10-31 | 2010-12-22 | 比亚迪股份有限公司 | Polychromatic source used for vision testing unit |
| CN202302903U (en) * | 2011-10-27 | 2012-07-04 | 东莞市奥普特自动化科技有限公司 | Parallel lighting device |
| CN102679180A (en) * | 2011-03-07 | 2012-09-19 | 浙江迈勒斯照明有限公司 | Illumination lamp module of LED (light emitting diode) light source |
| CN203010368U (en) * | 2012-10-31 | 2013-06-19 | 蕙萰科技股份有限公司 | Stage lamp |
| CN103578366A (en) * | 2013-11-07 | 2014-02-12 | 韦胜国 | LED display screen |
| CN204962463U (en) * | 2015-08-17 | 2016-01-13 | 东莞市乐琪光电科技有限公司 | Visual inspection device's light structures |
| CN106352255A (en) * | 2016-11-02 | 2017-01-25 | 广东奥普特科技股份有限公司 | Point condensing device |
| KR20170126787A (en) * | 2016-05-10 | 2017-11-20 | 한미반도체 주식회사 | Vision Detecting Device |
| CN214375738U (en) * | 2020-12-31 | 2021-10-08 | 广东奥普特科技股份有限公司 | Multicolor point light source device |
-
2020
- 2020-12-31 CN CN202011638461.3A patent/CN112748624A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201680171U (en) * | 2009-10-31 | 2010-12-22 | 比亚迪股份有限公司 | Polychromatic source used for vision testing unit |
| CN102679180A (en) * | 2011-03-07 | 2012-09-19 | 浙江迈勒斯照明有限公司 | Illumination lamp module of LED (light emitting diode) light source |
| CN202302903U (en) * | 2011-10-27 | 2012-07-04 | 东莞市奥普特自动化科技有限公司 | Parallel lighting device |
| CN203010368U (en) * | 2012-10-31 | 2013-06-19 | 蕙萰科技股份有限公司 | Stage lamp |
| CN103578366A (en) * | 2013-11-07 | 2014-02-12 | 韦胜国 | LED display screen |
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