A lighting device in which the probe is placed on the surface of a light source.
By placing the monitoring probe on the surface of the light source and utilizing the design of a light guide plate and a diffuser plate, the problems of optical path differences and external interference are solved, thereby achieving the accuracy of monitoring results and the stability of the production line.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 深圳市浩诚泽远科技有限公司
- Filing Date
- 2025-08-14
- Publication Date
- 2026-05-26
AI Technical Summary
The existing monitoring probe for the burning light source is located at the bottom, which results in large differences in the optical path, inaccurate monitoring results, and susceptibility to interference from external light and objects, affecting the product yield of the production line.
The monitoring probe is placed on the surface of the light source. Through the design of the light guide plate and diffuser plate, the monitoring light path is made consistent with the light path on the surface of the light source. The monitoring probe module is embedded in the groove of the aluminum frame cover plate to reduce external interference.
It achieves consistency in the monitoring optical path, reduces interference from external light and objects, ensures the accuracy and reliability of monitoring results, and improves the product yield of the production line.
Smart Images
Figure CN224284342U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machine vision lighting technology, specifically to a lighting device in which the probe is placed on the surface of a light source. Background Technology
[0002] The programming light sources used in existing mobile phone camera module production lines have certain problems. Most programming light sources lack monitoring functions, and when the parameters of the programming light source change, it is impossible to detect and take intervention measures in time. This leads to defective products on the production line and reduces the product yield.
[0003] A small number of programming light sources with monitoring functions have their ambient light sensor probe (hereinafter referred to as the probe) placed at the bottom of the programming light source, which has obvious drawbacks:
[0004] The parameters of the monitored light differ significantly from those of the light on the surface of the light source. The light on the surface of the light source is emitted by LED beads placed on the side of the outer frame 1, passes through light guide plates 5 and 4 and diffuser plates 3 and 2, and finally reaches the surface of the light source. However, the monitoring system with the probe at the bottom monitors light emitted by LED beads placed on the side of the outer frame 1, passes through light guide plates 5 and 4, and then passes through the hole 6 in the base plate of the light source 7 to reach the monitoring probe 8. The paths of the two types of light are different, and the light monitored at the bottom does not pass through the diffuser plate, hence the significant difference.
[0005] It is easily affected by external light. After external light shines on the surface of the light source, it will pass through the diffuser plates 2 and 3, the light guide plates 4 and 5, and then through the hole 6 in the base plate of the light source to reach the monitoring probe 8, resulting in inaccurate monitoring results.
[0006] It is easily affected by external objects. When an external object 11 approaches the surface of the light source, part of the light emitted from the surface of the light source will be reflected back, passing through the diffuser plates 2 and 3, the light guide plates 4 and 5, and through the hole 6 in the base plate 7 of the light source to reach the monitoring probe 8, making the monitoring results inaccurate. Therefore, it is necessary to design a lighting device in which the probe is placed on the surface of the light source. Utility Model Content
[0007] The purpose of this invention is to provide an illumination device in which the probe is placed on the surface of a light source, so as to solve the problems mentioned in the background art.
[0008] To achieve the above objectives, this utility model provides the following technical solution: an illumination device with a probe placed on the surface of a light source, comprising a programming light source and a monitoring system disposed on the programming light source;
[0009] The programming light source includes an aluminum base frame, LED light-emitting beads, a PCB copper substrate, a light guide plate, a diffuser plate, and an aluminum frame cover plate;
[0010] The LED light-emitting beads are attached to the PCB copper substrate, and the PCB copper substrate is attached to the aluminum base frame. The aluminum base frame is an integral structure consisting of four sides and a base plate.
[0011] The light guide plate and the diffuser plate are sequentially arranged inside the aluminum base frame, and the aluminum frame cover plate covers the aluminum base frame; the aluminum frame cover plate is provided with a groove;
[0012] The monitoring probe module of the monitoring system is installed in the groove, so that the monitoring probe module is embedded in the aluminum frame cover plate, and the probe of the monitoring probe module is fixed to the center of the edge of the aluminum frame cover plate.
[0013] Preferably, the light guide plate includes a 10mm thick light guide plate and an 8mm thick light guide plate, which are sequentially arranged inside the aluminum base frame.
[0014] Preferably, the diffuser plate includes a 2mm thick diffuser plate and a 1mm thick diffuser plate, which are sequentially disposed above the light guide plate.
[0015] Preferably, the aluminum base frame is provided with four mounting holes and several heat sinks.
[0016] Preferably, five cooling fans are installed on the cooling fan slot of the aluminum base frame.
[0017] Preferably, the monitoring system further includes a monitoring and control module and a main control board; the probe receives light and converts it into an electrical signal, which is then transmitted via I... 2 The C-bus transmits data to the monitoring and control module, where it performs algorithmic calculations to obtain corresponding parameters. These parameters are then transmitted to the microprocessor on the main control board via RS485 communication. The microprocessor on the main control board transmits the parameters to the PC via RS232 communication for display. The circuit of the monitoring probe module uses a flexible PCB with a thickness of 0.2mm as the circuit board.
[0018] Preferably, the aluminum base frame is designed with 20 locking screw through holes, and the 20 locking screws are locked onto the 20 locking screw holes on the aluminum frame cover plate through the locking screw through holes.
[0019] Beneficial effects:
[0020] (1) In this utility model, the light monitored by the monitoring system has the same optical path as the light on the surface of the light source. The light on the surface of the light source is emitted by LED beads and passes through a 10mm thick light guide plate, an 8mm thick light guide plate, a 2mm thick diffuser plate, and a 1mm thick diffuser plate in sequence to reach the surface of the light source; the light monitored by the monitoring system is also emitted by LED beads and reaches the surface of the light source through the same path and is received by the probe of the monitoring probe module. Therefore, the optical paths of the two are consistent and the difference in the monitored light parameters is small.
[0021] (2) This utility model is less affected by external objects. When an external object approaches the surface of the light source, the light emitted from the surface of the light source is reflected back and then passes through a 1mm thick diffuser plate, a 2mm thick diffuser plate, an 8mm thick light guide plate, and a 10mm thick light guide plate. It is then blocked by the aluminum base frame and reflected back. Finally, most of the light is reflected back to the surface of the light source, so very little light reaches the probe of the monitoring probe module, and the monitoring results are accurate.
[0022] (3) This utility model is less affected by external light interference. When external light shines on the surface of the light source, it will pass through a 1mm thick diffuser plate, a 2mm thick diffuser plate, an 8mm thick light guide plate, and a 10mm thick light guide plate in sequence. It will be blocked by the aluminum base frame and reflected back. After passing through the same light guide plate and diffuser plate path, most of the light will return to the surface of the light source. Only a very small portion of the external light can reach the probe of the monitoring probe module, which greatly reduces the interference of external light on the monitoring results and ensures the accuracy and reliability of the monitoring parameters.
[0023] (4) In this utility model, the monitoring probe module uses a flexible board with a thickness of 0.2mm as the circuit board and is installed in the groove of the aluminum frame cover plate. It is buried in the aluminum frame cover plate, does not occupy the light-emitting surface of the light source, and does not affect the installation.
[0024] The above description is merely an overview of the technical solutions of the embodiments of this application. In order to better understand the technical means of the embodiments of this application and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this application more apparent and understandable, specific implementation methods of this application are described below. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of this utility model;
[0026] Figure 2 This is an inverted schematic diagram of the present invention;
[0027] Figure 3 This is a schematic diagram of the optical path monitored by the monitoring system of this utility model;
[0028] Figure 4 This is a schematic diagram of the light reflection of this utility model;
[0029] Figure 5This is a schematic diagram showing the illumination from an external light source.
[0030] Figure 6 This is a schematic diagram of the structure of prior art 1;
[0031] Figure 7 This is a schematic diagram of the structure of existing technology 2;
[0032] Figure 8 This is a schematic diagram of the existing technology 3 structure. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.
[0035] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.
[0036] Please see Figures 1-5 An illumination device with a probe placed on the surface of a light source, comprising a programming light source and a monitoring system disposed on the programming light source;
[0037] The programming light source includes an aluminum base frame 68, LED light-emitting beads 66, a PCB copper substrate 67, a light guide plate, a diffuser plate, and an aluminum frame cover plate 61;
[0038] The LED light-emitting beads 66 are attached to the PCB copper substrate 67, and the PCB copper substrate 67 is attached to the aluminum base frame 68. The aluminum base frame 68 is an integral structure consisting of four sides and a base plate, which can better conduct the heat of the PCB copper substrate 67 to the base plate for dissipation.
[0039] The light guide plate and the diffuser plate are sequentially arranged inside the aluminum base frame 68, and the aluminum frame cover plate 61 covers the aluminum base frame 68; the aluminum frame cover plate 61 is provided with a groove 79;
[0040] The monitoring probe module 72 of the monitoring system is installed in the groove 79, so that the monitoring probe module 72 is embedded in the aluminum frame cover plate 61, and the probe 71 of the monitoring probe module 72 is fixed to the center of the edge of the aluminum frame cover plate 61.
[0041] In this utility model, the light guide plate includes a 10mm thick light guide plate 65 and an 8mm thick light guide plate 64, which are sequentially arranged inside the aluminum base frame 68.
[0042] In this invention, the diffuser plate includes a 2mm thick diffuser plate 63 and a 1mm thick diffuser plate 62, which are sequentially disposed above the light guide plate.
[0043] In this utility model, the aluminum base frame 68 is provided with four mounting holes 69 and several heat sinks 70, which increases the contact area between the heat dissipation structure and the air and improves the heat dissipation effect; five heat dissipation fans 78 are installed on the heat dissipation fan slot of the aluminum base frame 68, which quickly remove the heat generated by the light source through strong convection, reduce the working temperature and improve stability.
[0044] In this invention, the monitoring system further includes a monitoring and control module 74 and a main control board; the probe 71 receives light and converts it into an electrical signal, which is then transmitted via I... 2 The C-bus transmits data to the monitoring and control module 74, where it performs algorithmic calculations to obtain corresponding parameters. These parameters are then transmitted to the microprocessor on the main control board via RS485 communication. The microprocessor on the main control board transmits the parameters to the PC via RS232 communication for display. The circuit of the monitoring probe module 72 uses a flexible PCB with a thickness of 0.2mm as the circuit board, making the circuit invisible and not affecting installation.
[0045] In this invention, the aluminum base frame 68 is designed with 20 locking screw through holes 73, and 20 locking screws 76 are locked onto the 20 locking screw holes 77 on the aluminum frame cover plate 61 through the locking screw through holes 73, thereby fixing the aluminum base frame 68 to the aluminum frame cover plate 61.
[0046] Working principle: Light from the light source surface: The light emitted by the LED bead 66 first passes through the 10mm thick light guide plate 65, then passes upward through the 8mm thick light guide plate 64, then through the 2mm thick diffuser plate 63, and finally through the 1mm thick diffuser plate 62 to reach the light source surface 31.
[0047] The light monitored by the monitoring system: The light emitted by the LED lamp bead 66 first passes through the 10mm thick light guide plate 65, then passes upward through the 8mm thick light guide plate 64, then through the 2mm thick diffuser plate 63, and finally through the 1mm thick diffuser plate 62 to reach the light source surface 31 and be received by the probe 71 of the monitoring system probe module 72.
[0048] When an object 11 approaches the surface 31 of the light source, a portion of the light emitted from the surface 31 is reflected back by the object 11. This light then passes through a 1mm thick diffuser plate 62, a 2mm thick diffuser plate 63, an 8mm thick light guide plate 64, and a 10mm thick light guide plate 65. It is then blocked by the aluminum frame 68 and reflected back, passing through the 10mm thick light guide plate 65, then upwards through the 8mm thick light guide plate 64, through the 2mm thick diffuser plate 63, and finally through the 1mm thick diffuser plate 62 to reach the surface 31 of the light source. Therefore, most of the light reflected from the object 11 is reflected back to the surface of the light source, with very little reaching the probe 71 of the monitoring system's probe module 72. As a result, the light monitored by the monitoring system is essentially not reflected back from the surface object, but rather is still emitted by the light source itself, leading to more accurate monitoring results with less interference from external objects.
[0049] When light from the outside shines on the surface of the light source, it passes through a 1mm thick diffuser plate 62, a 2mm thick diffuser plate 63, an 8mm thick light guide plate 64, and a 10mm thick light guide plate 65. It is then blocked and reflected back by the aluminum base frame 68, passes through the 10mm thick light guide plate 65, ascends through the 8mm thick light guide plate 64, passes through the 2mm thick diffuser plate 63, and finally passes through the 1mm thick diffuser plate 62 to reach the surface 31 of the light source. Therefore, most of the external light is reflected back to the surface of the light source, and very little reaches the probe 71 of the monitoring system's probe module 72. At this point, the light monitored by the monitoring system is primarily external light, but still largely consists of light emitted by the light source itself, resulting in more accurate monitoring results with less interference from external light.
[0050] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A lighting device in which the probe is placed on the surface of a light source, characterized in that: Includes a programming light source and a monitoring system mounted on the programming light source; The programming light source includes an aluminum base frame (68), LED light-emitting beads (66), a PCB copper substrate (67), a light guide plate, a diffuser plate, and an aluminum frame cover plate (61); The LED light-emitting lamp beads (66) are attached to the PCB copper substrate (67), the PCB copper substrate (67) is attached to the aluminum base frame (68), and the aluminum base frame (68) is an integral structure consisting of four sides and a base plate. The light guide plate and the diffuser plate are arranged sequentially inside the aluminum base frame (68), and the aluminum frame cover plate (61) covers the aluminum base frame (68); the aluminum frame cover plate (61) is provided with a groove (79); The monitoring probe module (72) of the monitoring system is installed in the groove (79), so that the monitoring probe module (72) is buried in the aluminum frame cover plate (61), and the probe (71) of the monitoring probe module (72) is fixed at the center of the frame of the aluminum frame cover plate (61).
2. The lighting device with the probe placed on the surface of the light source according to claim 1, characterized in that: The light guide plate includes a 10mm thick light guide plate (65) and an 8mm thick light guide plate (64), which are sequentially arranged inside the aluminum base frame (68).
3. The lighting device with the probe placed on the surface of the light source according to claim 1, characterized in that: The diffuser plate includes a 2mm thick diffuser plate (63) and a 1mm thick diffuser plate (62), which are sequentially disposed above the light guide plate.
4. The lighting device with the probe placed on the surface of the light source according to claim 1, characterized in that: The aluminum base frame (68) is provided with four mounting holes (69) and several heat sinks (70).
5. The lighting device with the probe placed on the surface of the light source according to claim 1, characterized in that: Five cooling fans (78) are installed on the cooling fan slot of the aluminum base frame (68).
6. The lighting device with the probe placed on the surface of the light source according to claim 1, characterized in that: The monitoring system also includes a monitoring and control module (74) and a main control board; the probe (71) receives light and converts it into an electrical signal, which is then transmitted via I... 2 The C-bus transmits the data to the monitoring and control module (74), which calculates the corresponding parameters through an algorithm and transmits them to the microprocessor of the main control board via RS485 communication. The microprocessor of the main control board then transmits the parameters to the PC via RS232 communication and displays them. The circuit of the monitoring probe module (72) uses a flexible board with a thickness of 0.2mm as the circuit board.
7. The lighting device with the probe placed on the surface of the light source according to claim 1, characterized in that: The aluminum base frame (68) is designed with 20 locking screw through holes (73), and 20 locking screws (76) are locked into the 20 locking screw holes (77) on the aluminum frame cover plate (61) through the locking screw through holes (73).