A dual-spot white light source color sensor

Abstract

The utility model discloses provide a kind of double-facet white light source color sensor, comprising: shell, the side of the shell is equipped with light-transmitting window;Mounting bracket, setting in the shell interior, the mounting bracket is equipped with emission PCB board and receiving PCB board in the end away from the light-transmitting window;Emission lens assembly, including emission lens support and emission lens, the emission lens is set in the emission lens support one end, and the emission lens support is movably connected in the mounting bracket;Focusing component, setting in the mounting bracket one side, for driving the emission lens support close to or away from the emission PCB board;Receiving lens, fixed in the mounting bracket close to the position of receiving PCB board;Main PCBA board, fixed in the shell interior and with the emission PCB board and receiving PCB board electric connection.

Description

Technical Field

[0001] This disclosure relates to the field of color sensor technology, and in particular to a dual-spot white light source color sensor. Background Technology

[0002] Color sensors, as key components for accurate color recognition and digital perception, play an indispensable role in smart manufacturing, consumer electronics upgrades, and industrial automation inspection. Their core function is to convert the color information of an object's surface into quantifiable electrical signals, providing data support for quality control, product sorting, and intelligent interaction. In recent years, with the accelerated advancement of global smart manufacturing, the market has placed higher demands on the detection accuracy, environmental adaptability, and scenario compatibility of color sensors, driving the industry to rapidly evolve towards more refined spectral recognition, multi-channel fusion, and diversified application scenarios.

[0003] In high-end applications such as industrial inspection, single-spot color sensors are susceptible to interference from ambient light, object posture deviations, and fluctuations in detection distance, leading to decreased color recognition accuracy and failing to meet the stringent quality control requirements of high-end manufacturing. To address this issue, dual-spot white light source color sensors have emerged. These sensors utilize a dual-spot differential detection system to simultaneously compare the color information of two adjacent regions. Leveraging dual-dimensional sampling and signal fusion algorithms, they effectively suppress ambient light interference and improve compatibility with object posture deviations. They have already been widely used in high-end manufacturing fields such as lithium batteries, electronics, and packaging.

[0004] As a core component of the optical system of a color sensor, the lens's focal length directly determines the size of the light spot, the focusing accuracy, and the detection distance range, thus having a decisive impact on the sensor's detection performance. However, the focal length of lenses in existing dual-spot white light source color sensors is mostly fixed, which cannot be flexibly adjusted according to actual detection needs, resulting in significant application limitations for the sensors. Utility Model Content

[0005] This disclosure provides a dual-spot white light source color sensor to solve the above-mentioned technical problems.

[0006] This disclosure provides a dual-spot white light source color sensor, comprising: a housing with a light-transmitting window on its side; a mounting bracket disposed inside the housing, with an emitting PCB board and a receiving PCB board disposed at the end of the mounting bracket away from the light-transmitting window; an emitting lens assembly including an emitting lens bracket and an emitting lens, the emitting lens being disposed at one end of the emitting lens bracket, the emitting lens bracket being movably connected to the mounting bracket; a focusing assembly disposed on one side of the mounting bracket for driving the emitting lens bracket closer to or away from the emitting PCB board; a receiving lens fixedly disposed on the mounting bracket near the receiving PCB board; and a main PCBA board fixedly disposed inside the housing and electrically connected to the emitting PCB board and the receiving PCB board.

[0007] Preferably, the focusing assembly includes a focusing screw, a limiting piece, a focusing connecting rod, and a focusing bracket. The focusing bracket has a guide hole, and a slider is provided at a position corresponding to the guide hole on the emitting lens bracket. The slider is slidably connected to the guide hole. The focusing connecting rod is embedded in the focusing bracket. One end of the focusing screw is embedded in the housing, and the other end is threadedly connected to the focusing connecting rod. The limiting piece is fixed to the housing and is used to limit the axial movement of the focusing screw.

[0008] Preferably, the emitting PCB board integrates two emitting elements and two emitting lenses, each corresponding to the position of one of the emitting elements.

[0009] Preferably, the emitting lens bracket is provided with a light-blocking plate, which is disposed between the two emitting lenses.

[0010] Preferably, the emitting PCB board is fixedly provided with an aperture assembly, and the aperture assembly corresponds to the position of the two emitting elements.

[0011] Preferably, it also includes a side PCBA board, which is fixed to the housing. The side PCBA board integrates an indicator light and a calibration button. A transparent cover is embedded in the housing at the position corresponding to the indicator light. A light guide is provided between the transparent cover and the indicator light. The side PCBA board is electrically connected to the main PCBA board.

[0012] Preferably, it further includes a display and adjustment component, which includes a digital display PCBA board, an LED digital tube, an adjustment button, and a display window lens. The display window is provided on the side of the housing away from the light-transmitting window, and the display window lens is embedded in the display window. The digital display PCBA board is fixed to the side of the housing near the display window by a fastener. The LED digital tube is integrated into the digital display PCBA board. The adjustment button is embedded in the housing and connected to the digital display PCBA board. The digital display PCBA board is electrically connected to the main PCBA board. The adjustment button is used to adjust parameters, and the LED digital tube is used to display parameters.

[0013] Preferably, the light-transmitting window is fitted with a light-transmitting lens.

[0014] Preferably, the outer casing has a plurality of mounting holes on its side.

[0015] Preferably, a cable fixing component is fixed at the bottom of the housing, and a cable is fixed thereon, which is connected to the main PCBA board.

[0016] The main beneficial effects of this disclosure are: the present invention drives the emitting lens bracket to move along the axial direction of the mounting bracket through the focusing component, so that it moves closer to or further away from the emitting PCB board, thereby adjusting the focal length of the emitting element and focusing it on the object to be measured, thus improving the adaptability of the sensor.

[0017] It should be understood that both the foregoing general description and the following detailed description are for illustrative purposes and do not necessarily limit the scope of this disclosure. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate the subject matter of this disclosure. Furthermore, the specification and drawings serve to explain the principles of this disclosure. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the specific embodiments of this disclosure or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is an exploded view of the sensor structure according to an embodiment of this disclosure; Figure 2 This is a cross-sectional view of the sensor structure according to an embodiment of this disclosure; Figure 3 This is a schematic diagram of the sensor focusing structure according to an embodiment of the present disclosure; Figure 4 This is a schematic diagram of the sensor structure according to an embodiment of the present disclosure; Icons: 1-Outer shell; 2-Main PCBA board; 3-Mounting bracket; 4-Side PCBA board; 5-LED digital tube; 6-Digital display PCBA board; 7-Fixed component; 8-Light-transmitting lens; 9-Light-transmitting window; 10-Cable fixing component; 11-Cable; 12-Light guide component; 13-Transparent cover; 14-Calibration button; 15-Focusing screw; 16-Adjustment button; 17-Display window lens; 18-Limiting plate; 19-Focusing bracket; 20-Focusing linkage; 21-Emitting lens; 22-Emitting lens bracket; 23-Light blocking plate; 24-Emitting PCB board; 25-Aperture assembly; 26-Receiving PCB board; 27-Receiving lens; 28-Mounting hole; 29-Slider; 30-Guide hole. Detailed Implementation

[0020] The technical solutions of this disclosure will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments.

[0021] Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure.

[0022] In the description of this disclosure, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0024] Example like Figure 1-4As shown, this embodiment provides a dual-spot white light source color sensor, including a housing 1. The housing 1 has a cuboid structure, and a light-transmitting window 9 is provided on one side of the housing 1 to facilitate light transmission. A mounting bracket 3 is provided inside the housing 1. A transmitting PCB board 24 and a receiving PCB board 26 are fixedly mounted on the end of the mounting bracket 3 away from the light-transmitting window 9 by screws. The transmitting PCB board 24 and the receiving PCB board 26 respectively integrate transmitting and receiving elements for emitting light and receiving reflected light. A receiving lens 27 is provided inside the mounting bracket 3 near the receiving PCB board 26 to converge the reflected light and make it return to the receiving element more concentratedly. A transmitting lens assembly is provided on the mounting bracket 3 near the transmitting PCB board 24. The transmitting lens assembly includes a transmitting lens support. The mounting bracket 3 has a through hole that allows the transmitting lens bracket 22 to move back and forth, serving as a guide and limiting device. The transmitting lens bracket 22 is movably connected to the mounting bracket 3. The transmitting lens 21 is located inside the transmitting lens bracket 22. A focusing assembly is provided on the side of the mounting bracket 3. The focusing assembly is used to drive the transmitting lens bracket 22 to move axially within the mounting bracket 3, so that the transmitting lens bracket 22 moves closer to or further away from the transmitting PCB board 24, thereby adjusting the focal length and converging the light onto the object being measured. The main PCBA board 2 is installed inside the housing 1 by screws. The main PCBA board 2 is connected to the transmitting PCB board 24 and the receiving PCB board 26 respectively through internal wiring, and is used to control the operation of the transmitting PCB board 24 and the receiving PCB board 26, as well as to receive signals.

[0025] Specifically, the focusing assembly includes a focusing screw 15, a limiting piece 18, a focusing connecting rod 20, and a focusing bracket 19. The focusing bracket 19 has a guide hole 30. A slider 29 is provided at a position corresponding to the guide hole 30 on the emitting lens bracket 22. The slider 29 is slidably connected to the guide hole 30. The focusing connecting rod 20 is embedded in the focusing bracket 19. One end of the focusing screw 15 is embedded in the outer shell 1, and the other end is threadedly connected to the focusing connecting rod 20. The limiting piece 18 is fixed to the outer shell 1 and is used to limit the axial movement of the focusing screw 15. In this embodiment, by rotating the focusing screw 15, the focusing screw 15 is restricted from movement by the limiting piece 18, and the focusing connecting rod 20, which is threadedly connected to the focusing screw 15, is driven to move back and forth. The focusing bracket 19 moves synchronously with the focusing connecting rod 20. During the movement, the guide hole 30 moves and pushes the slider 29 on the emitting lens bracket 22 to move, thereby driving the emitting lens bracket 22 to move. As long as the direction of the guide hole 30 is set, the emitting lens bracket 22 can be driven to move closer to or further away from the emitting PCB board 24, thereby changing the distance between the emitting lens 21 and the emitting element and adjusting the focal length.

[0026] In one embodiment, two emitting elements are integrated on the emitting PCB board 24, and there are two emitting lenses 21, which correspond to the positions of the two emitting elements respectively.

[0027] Furthermore, the emitting lens bracket 22 is provided with a light-blocking plate 23, which is disposed between the two emitting lenses 21 and isolates the two emitting lenses 21.

[0028] Furthermore, the emitting PCB board 24 is fixedly provided with an aperture assembly 25, the position of which corresponds to the position of the two emitting elements. The emitted light is constrained by the aperture assembly 25 to improve the detection effect.

[0029] In one embodiment, a side PCBA board 4 is further included. The side PCBA board 4 is fixed to the housing 1. An indicator light and a calibration button 14 are integrated on the side PCBA board 4. A transparent cover 13 is embedded in the housing 1 at the position corresponding to the indicator light. A light guide 12 is provided between the transparent cover 13 and the indicator light. The side PCBA board 4 is electrically connected to the main PCBA board 2. The parameters are calibrated by the calibration button 14, and the indicator light is used for prompting. The user can intuitively observe the working status of the sensor.

[0030] In one embodiment, a display and adjustment assembly is also included. This assembly includes a digital display PCBA board 6, an LED digital tube 5, an adjustment button 16, and a display window lens 17. A display window is located on the side of the housing 1 opposite to the light-transmitting window 9. The display window lens 17 is embedded in the display window. The digital display PCBA board 6 is fixed to the side of the housing 1 near the display window by a fastener 7. The LED digital tube 5 is integrated into the digital display PCBA board 6. The adjustment button 16 is embedded in the housing 1 and connected to the digital display PCBA board 6. The digital display PCBA board 6 is electrically connected to the main PCBA board 2. The adjustment button 16 is used to adjust parameters, and the LED digital tube 5 is used to display parameters. The LED digital tube 5 displays operating parameters, and there are two adjustment buttons 16 used to adjust the operating parameters.

[0031] Furthermore, the light-transmitting window 9 is fitted with a light-transmitting lens 8. The light-transmitting lens 8 isolates external pollution without obstructing the passage of light.

[0032] Furthermore, the outer casing 1 has several mounting holes 28 on its side. The mounting holes 28 are used to mount the sensor on the device and cooperate with the device in operation.

[0033] Furthermore, a cable fixing component 10 is fixedly provided at the bottom of the outer casing 1, and a cable 11 is fixedly provided on the cable fixing component 10. The cable 11 is connected to the main PCBA board 2 and is connected to an external controller or power supply for data transmission and power supply.

[0034] The working principle of this utility model is as follows: By rotating the focusing screw 15 with a screwdriver, the focusing screw 15 is restricted from movement by the limiting piece 18. The focusing connecting rod 20, which is threadedly connected to the focusing screw 15, is driven to move back and forth. The focusing bracket 19 moves synchronously with the focusing connecting rod 20. During the movement, the guide hole 30 moves, which pushes the slider 29 on the emitting lens bracket 22 to move, thereby driving the emitting lens bracket 22 to move. As long as the direction of the guide hole 30 is set, the emitting lens bracket 22 can be driven to move closer to or further away from the emitting PCB board 24, thereby changing the distance between the emitting lens 21 and the emitting element and adjusting the focal length. After the focal length is adjusted, the light emitted by the emitting element passes through the emitting lens 21 and is emitted from the light transmission window 9. After illuminating the object being measured, it returns and returns to the receiving element after passing through the receiving lens 27. After receiving the light signal, the receiving element sends parameters to the main PCBA board 2 and obtains the result through calculation.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit them. Although this disclosure 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 or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this disclosure.

Claims

1. A dual-spot white light source color sensor, characterized in that, include: The outer casing has a light-transmitting window on its side; A mounting bracket is disposed inside the housing, and a transmitting PCB board and a receiving PCB board are disposed at the end of the mounting bracket away from the light-transmitting window; A transmitting lens assembly includes a transmitting lens bracket and a transmitting lens, wherein the transmitting lens is disposed at one end of the transmitting lens bracket, and the transmitting lens bracket is movably connected to the mounting bracket; A focusing assembly is disposed on one side of the mounting bracket and is used to drive the emitting lens bracket closer to or further away from the emitting PCB board; A receiving lens is fixed to the mounting bracket near the receiving PCB board; The main PCBA board is fixed inside the housing and electrically connected to the transmitting PCB board and the receiving PCB board.

2. The dual-spot white light source color sensor according to claim 1, characterized in that, The focusing assembly includes a focusing screw, a limiting piece, a focusing connecting rod, and a focusing bracket. The focusing bracket has a guide hole, and a slider is provided at a position corresponding to the guide hole on the emitting lens bracket. The slider is slidably connected to the guide hole. The focusing connecting rod is embedded in the focusing bracket. One end of the focusing screw is embedded in the housing, and the other end is threadedly connected to the focusing connecting rod. The limiting piece is fixed to the housing and is used to limit the axial movement of the focusing screw.

3. The dual-spot white light source color sensor according to claim 1, characterized in that, The emitting PCB board integrates two emitting elements, and there are two emitting lenses, each corresponding to the position of one of the two emitting elements.

4. The dual-spot white light source color sensor according to claim 3, characterized in that, The emitting lens bracket is provided with a light-blocking plate, which is disposed between the two emitting lenses.

5. A dual-spot white light source color sensor according to claim 3, characterized in that, The transmitting PCB board is fixed with an aperture assembly, and the aperture assembly corresponds to the position of the two transmitting elements.

6. A dual-spot white light source color sensor according to claim 1, characterized in that, It also includes a side PCBA board, which is fixed to the housing. The side PCBA board integrates an indicator light and a calibration button. A transparent cover is embedded in the housing at the position corresponding to the indicator light. A light guide is provided between the transparent cover and the indicator light. The side PCBA board is electrically connected to the main PCBA board.

7. A dual-spot white light source color sensor according to claim 1, characterized in that, It also includes a display and adjustment assembly, which includes a digital display PCBA board, an LED digital tube, an adjustment button, and a display window lens. A display window is provided on the side of the housing away from the light-transmitting window, and the display window lens is embedded in the display window. The digital display PCBA board is fixed to the side of the housing near the display window by a fastener. The LED digital tube is integrated into the digital display PCBA board. The adjustment button is embedded in the housing and connected to the digital display PCBA board. The digital display PCBA board is electrically connected to the main PCBA board. The adjustment button is used to adjust parameters, and the LED digital tube is used to display parameters.

8. A dual-spot white light source color sensor according to claim 1, characterized in that, The light-transmitting window is fitted with a light-transmitting lens.

9. A dual-spot white light source color sensor according to claim 1, characterized in that, The outer casing has several mounting holes on its side.

10. A dual-spot white light source color sensor according to claim 1, characterized in that, The bottom of the housing is fixed with a cable fixing component, and a cable is fixed in the cable fixing component. The cable is connected to the main PCBA board.

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