Dome light source device

Abstract

The utility model relates to the technical field of light sources, in particular to a dome light source device which comprises a bowl-shaped reflecting cover, a light source base and an LED light source, a first circular opening is formed in the upper surface of the reflecting cover, and a diffuse reflection layer is arranged on the inner surface of the reflecting cover. The light source base is provided with a second circular opening, the upper surface of the light source base comprises a PCB embedded groove, the embedded PCB is electrically connected with the LED light source, the LED light source comprises a plurality of LED light-emitting tubes, and each LED light-emitting tube is connected with the power source through a switch unit of the LED light-emitting tube. The light of the light source is distributed more uniformly through the diffuse reflection layer in the bowl-shaped reflection cover, each LED luminous tube is connected with the power supply through the respective switch unit, the illumination intensity of the light source can be adjusted according to the use environment and the size of a detected object, and the optimal illumination effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to light source technical field especially relates to a dome light source device. BACKGROUND

[0002] The dome light source is a common and multifunctional lighting device, the light source emits light from the bottom, forms shadowless light source through multiple diffuse reflection, is a kind of high uniformity light source, aims at effectively controlling the scattering and projection direction of light, is suitable for the detection of surface uneven, light-reflecting object;The dome light source can provide suitable lighting effect for space by its unique design and light source selection, and plays an important role in vision and practicality.

[0003] The traditional dome light source device has some shortcomings when being used for detecting illumination, first, the traditional dome light source often causes uneven light distribution, and local area can appear the situation of different brightness, which causes trouble for the detection task needing accurate illumination;Second, the traditional dome light source device is seriously attenuated in lightening brightness under long-time illumination state because of limited heat dissipation capacity, which influences the accurate identification and analysis of detection equipment to target. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problems that the traditional dome light source light distribution is uneven and the heat dissipation capacity is limited.

[0005] In order to solve the above technical problems, the technical scheme adopted by the utility model is as follows: a dome light source device, including bowl-shaped reflector, light source base, LED light source, the first circular hole is formed in the upper surface of the reflector, and the inner surface of the reflector is provided with a diffuse reflection layer;The light source base has a second circular hole, and the upper surface of the light source base includes a PCB board embedded groove, the embedded PCB board is electrically connected with the LED light source, and the LED light source includes a plurality of LED light pipes, and each LED light pipe is connected with the power supply through a respective switch unit.

[0006] Further optimize the technical scheme, the reflector and the light source base are detachably connected, and the area of the first circular hole is less than the area of the second circular hole.

[0007] Further optimize the technical scheme, the bottom of the light source base is provided with a plurality of radially arranged heat dissipation fins, and the plurality of heat dissipation fins are uniformly arranged in the light source base in a radial manner, one side of the heat dissipation fin corresponding to the reflector is provided with an extension part, and the extension part is arranged in the direction of the first circular hole from one side of the second circular hole.

[0008] Further optimize the technical scheme, the top of the first circular opening is provided with a light shielding sleeve, the outer side edge of the light shielding sleeve is provided with a countersunk hole, and the reflecting cover is provided with a threaded hole column at a position corresponding to the countersunk hole.

[0009] Further optimize the technical scheme, the top of the light shielding sleeve is provided with a sealing ring, and the outer periphery of the light shielding sleeve is provided with a conical surface.

[0010] Compared with the prior art, the dome light source device has the following advantages: 1. The light source light distribution is more uniform through the diffuse reflection layer in the bowl-shaped reflecting cover, each LED light pipe is connected with the power supply through a respective switch unit, the light intensity of the light source can be adjusted according to the use environment and the size of the detected object, and the best illumination effect is achieved; 2. The heat generated can be guided to the outside of the reflecting cover through the heat dissipation fins, and the use of the camera at the top can also be avoided. The heat conduction is excessive, the connection strength of the light source base and the reflecting cover is increased, and damage to the light source connection part caused by external impact is avoided. 3. The light source and the camera lens can be accurately positioned through the light shielding sleeve, the coaxiality of the installation is ensured, the camera and the light source are avoided from being offset during use, and the uniformity of the light entering the detection camera is avoided; 4. The sealing performance of the connection between the camera lens and the light shielding sleeve is improved through the sealing ring, the entry of dust and water vapor is avoided, and the maintenance working hours are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a sectional view of a dome light source device embodiment one;

[0012] Figure 2 It is a top view of the light source base in embodiment one;

[0013] Figure 3 It is a sectional view of a dome light source device embodiment two;

[0014] Figure 4 It is a schematic view of one side of the bottom of embodiment two.

[0015] In the figure: 1, reflecting cover; 10, threaded hole column; 2, light source base; 21, heat dissipation fin; 210, extension; 3, LED light source; 4, object table; 5, first circular opening; 50, countersunk hole; 51, light shielding sleeve; 510, conical surface; 511, sealing ring; 512, annular step; 6, second circular opening. DETAILED DESCRIPTION

[0016] To make the purpose, technical scheme and advantages of the present application more clear, specific embodiments will be further described in detail below with reference to the drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present application. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present application.

[0017] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like in the present application indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present disclosure. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance. Embodiment one

[0018] In combination Figures 1 to 2 As shown in the drawings, a kind of dome light source device, including bowl-shaped reflector 1, light source base 2, LED light source 3, the reflector 1 adopts bowl-shaped structure, is processed from aluminum alloy, outer surface is treated by oxidation and blackening, color is consistent with camera shell color, can avoid the influence of light source environment stray light.

[0019] The upper surface of the reflector 1 has a first circular hole 5. Wherein, the first circular hole 5 is provided above the camera lens.

[0020] Specifically, the inner diameter of the first circular hole 5 is consistent with the outer diameter of the camera lens, so that the camera lens can be fixed together with the dome light source device, ensuring the relative position between the light source and the camera lens. Optionally, the fixing method is hexagonal screw fixing.

[0021] Wherein, the inner diameter of the bowl mouth of the reflector 1 is consistent with the outer diameter of the light source base 2, for connecting the reflector 1 with the light source base 2. Specifically, the reflector 1 and the light source base 2 are detachably connected.

[0022] The inner surface of the reflector 1 is coated with a diffuse reflection coating.

[0023] Wherein, the diffuse reflection coating is a high diffuse reflection white coating layer uniformly formed on the inner surface of the reflector 1 by spraying diffuse reflection paint, which can improve the luminous efficiency, eliminate glare or light spot, and ensure good light color consistency. Optionally, the diffuse reflection paint is composed of base material, diffuse reflection material, high thermal conductivity material and filler.

[0024] The light source base 2 has a second circular opening 6, and the upper surface of the light source base 2 comprises an embedded groove of a PCB, and the embedded PCB is electrically connected with the LED light source 3.

[0025] As shown in Figure 2 The light source base 2 adopts a hollow circular structure and is made of aluminum alloy, and the inner surface of the light source base 2 is connected with the LED light source 3 by using an embedded PCB; the light scattered by the LED light source 3 is scattered to the diffuse reflection coating on the inner surface of the reflector 1, and the light after diffuse reflection by the diffuse reflection coating is uniformly irradiated on the object placing table 4 through the second circular opening 6. The light source base 2 and the reflector 1 are detachably connected, and the inner surface of the light source base 2 is provided with an embedded groove.

[0026] The area of the first circular opening 5 is smaller than the area of the second circular opening 6.

[0027] In use, the LED light source 3 is a plurality of LED light tubes which can be remotely controlled to be turned on or off and the irradiation intensity of which can be remotely controlled. The LED light tube can realize different light source colors, and the optional light source colors are red, blue, green or white.

[0028] The utility model discloses a bowl-shaped light source based on the traditional, uses the LED light tube that can be remotely controlled to be turned on or off and the irradiation intensity, can according to the current state and the light intensity of sensor acquisition intelligent adjustment dome light source device's working condition, has reduced the human resources that the dome light source device works and consumes.

[0029] In use, the light source is arranged above the object placing table 4, and the object placing table 4 is provided with a sensor.

[0030] The object placing table 4 is arranged below the second circular opening 6, and objects can be placed on the object placing table 4.

[0031] The sensor is used for acquiring whether the object placing table 4 is placed with objects and the current light intensity, and the weight sensor or the visual sensor can be used to acquire whether the object placing table 4 is placed with objects, and the light intensity sensor can be used to acquire the current light intensity.

[0032] The utility model discloses a sensor is added on the object placing table 4 of placing object, can acquire the current state of object placing table 4 and the illumination intensity under the current natural environment regularly, and the current state includes object placing and no object placing, and the control of LED light source 3 can be decided jointly by the current state and illumination intensity, therefore, under the condition that the dome light source device does not need to increase additional illumination intensity, can temporarily close light source or reduce light source illumination intensity, is not only favorable to energy saving and environmental protection, and guarantees the stability of dome light source device under long time work to a certain extent, reduces the light attenuation phenomenon.

[0033] In the field of electronic production, the dome light source device provided by the embodiment can be used for visual inspection and quality control. Specifically, the embodiment can provide uniform and bright illumination, which helps workers to check the quality and assembly of small components such as electronic components and printed circuit boards (PCB). Through sufficient illumination, the occurrence of defects and errors can be reduced, and production efficiency and product quality can be improved. In addition, the dome light source device provided by the embodiment can also be involved in welding and assembly, surface detection, and laser processing, etc.

[0034] Due to the diversity of the use scenarios of the dome light source device, in order to meet the needs of various electronic production, the embodiment can arrange the LED light pipes according to actual needs, and the arrangement mode can be freely changed. For example, in the production of electronic components, the embodiment is mainly used to provide a uniform and stable illumination environment, to ensure that the detection, assembly and debugging of components during production can be accurate and efficient. Considering that the illumination area required by electronic component production is very small, usually less than centimeter level, but the uniformity of the light source in the effective illumination area is very high. In order to ensure the uniformity of the light source in the working range, and effectively utilize the light emitted by the LED light pipe, the LED light pipe is inclined to the center during the assembly of the light source. In this way, the light emitted by all LED light pipes is irradiated to the center of the light source, forming a uniform illumination area in the center of the light source. In general, the embodiment can provide corresponding illumination support according to production needs, to help ensure the smooth progress of the production process and the stable improvement of product quality. Embodiment two

[0035] Different from embodiment one, as shown in Figures 3 to 4 A dome light source device, the bottom of the light source base 2 is provided with a plurality of radially arranged heat dissipation fins 21, a plurality of the heat dissipation fins 21 are uniformly arranged in the light source base 2 in a radial manner, the side of the heat dissipation fin 21 corresponding to the reflection cover 1 is provided with an extension part 210, and the extension part 210 is arranged by extending from one side of the second circular hole 6 to the first circular hole 5.

[0036] In use, the heat generated by the LED light source 3 can be uniformly radiated through the heat dissipation fins 21, and the heat can be guided to the outside of the reflector 1, so that the use of the top camera is not affected by excessive heat conduction, the brightness of the light source is slowed down, the extension 210 improves the heat dissipation capacity and increases the connection strength between the light source base 2 and the reflector 1, and the damage of the light source connection part caused by external impact is avoided.

[0037] The top of the first circular hole 5 is provided with a light shielding sleeve 51, the outer edge of the light shielding sleeve 51 is provided with a countersunk hole 50, and the reflector 1 is provided with a threaded hole column 10 at a position corresponding to the countersunk hole 50. The top of the light shielding sleeve 51 is provided with a sealing ring 511, and the outer periphery of the light shielding sleeve 51 is provided with a conical surface 510.

[0038] In use, the light shielding sleeve 51 is detachably connected with the reflector 1 through the screw in the countersunk hole 50, the inner surface of the light shielding sleeve 51 is treated by oxidation and blackening, the bottom of the light shielding sleeve 51 is provided with an annular step 512, and the annular step 512 is clamped outside the first circular hole 5. The conical surface 510 can realize accurate positioning of the light source and the camera lens, ensure coaxiality during installation, and avoid deviation of the camera and the light source during use. The sealing ring 511 can improve the sealing performance of the connection between the camera lens and the light shielding sleeve 51, prevent dust and water vapor from entering, and reduce maintenance time.

[0039] Although some specific embodiments of the present application have been described in detail above, those skilled in the art should understand that the above examples are only for illustration, and are not intended to limit the scope of the present application. Those skilled in the art should also understand that various modifications can be made to the embodiments without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A dome light source arrangement comprising a bowl-shaped reflector (1), a light source base (2), an LED light source (3), characterized in that, The upper surface of the reflector (1) has a first circular opening (5), and the inner surface of the reflector (1) is provided with a diffuse reflection layer; the light source base (2) has a second circular opening (6), and the upper surface of the light source base (2) comprises a PCB-embedded recess, and the embedded PCB is electrically connected with the LED light source (3).

2. The dome light device of claim 1, wherein, The reflector (1) and the light source base (2) are detachably connected, and the area of the first circular opening (5) is smaller than that of the second circular opening (6).

3. The dome light apparatus of claim 1, wherein, The bottom of the light source base (2) is provided with a plurality of radially arranged heat dissipation fins (21), and the plurality of heat dissipation fins (21) are uniformly arranged in a radial manner in the light source base (2), and the side of the heat dissipation fin (21) corresponding to the reflector (1) is provided with an extension (210), and the extension (210) is arranged extending from one side of the second circular opening (6) to the first circular opening (5).

4. The dome light device of claim 3, wherein, The top of the first circular opening (5) is provided with a light shielding sleeve (51), the outer edge of the light shielding sleeve (51) is provided with a countersunk hole (50), and the reflector (1) is provided with a threaded hole column (10) corresponding to the countersunk hole (50).

5. The dome light device of claim 4, wherein, The top of the light shielding sleeve (51) is provided with a sealing ring (511), and the outer periphery of the light shielding sleeve (51) is provided with a conical surface (510).

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