Imaging colorimeter and detection device

Abstract

The utility model discloses an imaging colorimeter and a detection device, the imaging colorimeter comprises a housing, a light filtering module, an image sensor, a photographing module and a control module, a support is arranged in the housing, the photographing module is arranged at the bottom of the housing in a penetrating manner, the light filtering module comprises a driving module and a light filtering disc connected with the output end of the driving module, and the image sensor is arranged in the housing. The driving module is arranged on the support, the filter disc is located between the photographing module and the support, the image sensor is arranged on the support, and the control module is electrically connected with the image sensor, the photographing module and the driving module. When a product is tested, the driving module drives the filter disc to rotate, light received by the photographing module penetrates through the filter disc to be filtered by physical light splitting and then is projected to the image sensor, and the image sensor converts an optical signal into an electric signal and transmits the electric signal to an upper computer. The light is filtered and split, so that the image sensor outputs a color signal which is more suitable for human eye observation, and the accuracy of product testing is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of optical quality test, especially to an imaging colorimeter and detection device. BACKGROUND

[0002] In the production process of electronic products with light-emitting display screens, the testing of the optical quality of the display screen is a very important link, which affects the production qualification rate. Currently, the optical testing of electronic screens often directly uses a CMOS sensor with a Bayer filter array as the imaging component of a colorimeter, which cannot accurately simulate the color quantization of the human eye, has low measurement accuracy, and has deviations in detection effect. SUMMARY

[0003] The utility model aims at at least solves one of prior art existing technical problems. For this reason, the utility model provides an imaging colorimeter, which performs light splitting and filtering on the light entering the image sensor, so that the image sensor can output colors that are more consistent with the colors observed by the human eye, thereby improving the accuracy and precision of product testing.

[0004] The utility model further provides a detection device with the above-mentioned imaging colorimeter.

[0005] According to the imaging colorimeter of the first aspect of the utility model, the shell is provided with a support inside; a photography module is arranged at the bottom of the shell; a light filtering module includes a driving module and a light filtering disc connected to the output end of the driving module, the driving module is arranged on the support, and the light filtering disc is located between the photography module and the support; an image sensor is arranged on the support; a control module is electrically connected to the image sensor, the photography module, and the driving module; and the light received by the photography module is transmitted to the image sensor through the light filtering module.

[0006] According to some embodiments of the utility model, the light filtering disc includes a turntable frame, an optical lens, and a light shield, the turntable frame is provided with a through slot, the optical lens is arranged in the through slot, the bottom surface of the optical lens is flush with the bottom surface of the turntable frame, and the light shield is arranged on the side edge of the turntable frame, and the bottom surface of the light shield is flush with the bottom surface of the turntable frame.

[0007] According to some embodiments of the utility model, the through slot includes six, the optical lens includes an X filter, a Y filter, a Z filter, and two pieces of light shielding lens, wherein the X filter, the Y filter, and the Z filter are respectively installed in the first, second, and sixth through slots, and the two pieces of light shielding lens are installed in the third and fifth through slots.

[0008] According to some embodiments of the present application, the shell comprises an upper cover plate, a bottom plate and a cover arranged between the upper cover plate and the bottom plate, the upper cover plate is provided with a through slot, and the bottom plate is provided with a stepped through hole.

[0009] According to some embodiments of the present application, the driving module comprises a motor, a connector and a bearing table, the motor is connected with the support through the bearing table, the rotating shaft of the motor is connected with the upper end of the connector, and the lower end of the connector is provided with the light filter disc.

[0010] According to some embodiments of the present application, the first positioning ring is arranged between the connector and the support, and the second positioning ring is arranged between the light filter disc and the bottom plate.

[0011] According to some embodiments of the present application, the photographing module comprises an optical AF lens and an adapter ring, the optical AF lens is arranged on the adapter ring, the optical AF lens is provided with a corresponding number of touch tables, the touch tables are in contact with the contact points of the adapter ring, the adapter ring is arranged on the bottom plate, the bottom surface of the adapter ring is flush with the bottom surface of the bottom plate, and the adapter ring is electrically connected with the control module.

[0012] According to some embodiments of the present application, the support is provided with a heat dissipation module, and the heat dissipation module is arranged on both sides of the image sensor and the driving module.

[0013] The imaging colorimeter according to the first aspect of the present application further comprises a micro-groove photoelectric sensor electrically connected with the control module, the micro-groove photoelectric sensor is arranged to be matched with the light shield, and the light filter disc drives the light shield to pass through the micro-groove photoelectric sensor when rotating.

[0014] The detection device according to the second aspect of the present application comprises the device according to the first aspect of the present application.

[0015] The present application has at least the following advantages:

[0016] The imaging colorimeter according to the present application adds a light filter module in front of the CMOS sensor with a Bayer filter array, so that the light entering the image sensor is more pure and refined, the image sensor can simulate output more in line with the color observed by the human eye, and the precision and accuracy of product testing are improved.

[0017] Additional aspects and advantages of the present application will be given in part in the following description, will become apparent from the following description, or will be understood by those skilled in the art through practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the references to the following drawings, of which:

[0019] Figure 1 is an assembly structure schematic diagram of the imaging colorimeter according to the embodiment of the present application;

[0020] Figure 2 is an assembly structure schematic diagram of the imaging colorimeter according to the embodiment of the present application, which is assembled without the cover, the bottom plate and the upper cover plate;

[0021] Figure 3 is an assembly structure explosion diagram of the imaging colorimeter according to the embodiment of the present application;

[0022] Figure 4 is Figure 3 an assembly structure schematic diagram of the filter module of the imaging colorimeter shown in FIG.

[0023] Figure 5 is Figure 3 an assembly structure explosion diagram of the filter module of the imaging colorimeter shown in FIG.

[0024] Figure 6 is Figure 3 an assembly structure schematic diagram of the light shielding sheet and the sensor of the filter module of the imaging colorimeter shown in FIG.

[0025] Reference signs:

[0026] the shell 100, the bottom plate 110, the cover 120, the support 130, the upper cover plate 140,

[0027] the filter module 200, the driving module 210, the motor 211, the connector 212, the bearing table 213, the filter disc 220, the rotating disc holder 221, the optical lens 222, the X filter sheet 2221, the Y filter sheet 2222, the Z filter sheet 2223, the light shielding lens 2224, the light shielding sheet 223,

[0028] the image sensor 300,

[0029] the photographing module 400, the optical AF lens 410, the adapter ring 420,

[0030] the control module 500, the micro groove photoelectric sensor 510,

[0031] the first positioning ring 600, the second positioning ring 700,

[0032] the heat dissipation module 800. DETAILED DESCRIPTION

[0033] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as limiting the present application.

[0034] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying 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 application. In addition, the features limited as "first" and "second" can be explicitly or implicitly included one or more features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0035] In the description of the present application, unless otherwise explicitly limited, the words "set", "install", "connect", "connected" and the like should be broadly understood, and the skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0036] The following refers to Figures 1 to 6 An imaging colorimeter according to an embodiment of the present application is described.

[0037] As Figure 1 and Figure 3 An imaging colorimeter according to an embodiment of the present application is described.

[0038] The housing 100 is provided with a support 130, the photographic module 400 is arranged at the bottom of the housing 100, the light filter module 200 includes a driving module 210 and a light filter disc 220 connected to the output end of the driving module 210, the driving module 210 is arranged on the support 130, the light filter disc 220 is located between the photographic module 400 and the support 130, the image sensor 300 is arranged on the support 130, and the control module 500 is electrically connected with the image sensor 300, the photographic module 400 and the driving module 210 respectively; wherein the light received by the photographic module 400 is transmitted to the image sensor 300 through the light filter module 200.

[0039] When performing optical testing on the test product, the drive module 210 drives the filter disc 220 to rotate. The light received by the camera module 400 passes through the filter disc 220. The filter disc 220 performs physical beam splitting and filtering on the light transmitted by the camera module 400 and then projects it onto the image sensor 300. The image sensor 300 converts the light signal into an electrical signal and transmits it to the control module 500. The control module 500 then transmits the signal to the host computer.

[0040] In some specific embodiments of this utility model, the filter disc 220 includes a turntable frame 221, an optical lens 222, and a light-shielding plate 223. The turntable frame 221 has a through groove, the optical lens 222 is disposed in the through groove, and the bottom surface of the optical lens 222 is flush with the bottom surface of the turntable frame 221. The light-shielding plate 223 is disposed on the side of the turntable frame 221, and the bottom surface of the light-shielding plate 223 is flush with the bottom surface of the turntable frame 221.

[0041] Reference Figure 4 and Figure 6 As shown, the turntable frame 221 has a through slot, and the optical lens 222 is disposed in the through slot of the turntable frame 221. After installation, the bottom surface of the optical lens 222 is flush with the bottom surface of the turntable frame 221. The turntable frame 221 also has a light-shielding plate 223 on its side, the bottom surface of the light-shielding plate 223 is flush with the bottom surface of the turntable frame 221, and the side protrusion forms a rectangular protrusion shape with the turntable frame 221. The optical lens 222 is fixed to the turntable frame 221 by a connecting installation, realizing the interchangeability of the optical lens 222, so that the entire filter disc 220 does not need to be replaced due to the damage of a single optical lens 222.

[0042] In some specific embodiments of this utility model, the through slots include six, and the optical lens 222 includes an X filter 2221, a Y filter 2222, a Z filter 2223 and two light-shielding lenses 2224. The X filter 2221, the Y filter 2222 and the Z filter 2223 are respectively installed in the first, second and sixth through slots, and the two light-shielding lenses 2224 are installed in the third and fifth through slots.

[0043] refer to Figure 4 and Figure 5 As shown, there are six through slots on the turntable 221, which are evenly distributed. The X filter 2221, Y filter 2222 and Z filter 2223, which satisfy the CIE standard observer matching function, are placed in the first, second and sixth through slots of the turntable 221 in sequence. The light-blocking lens 2224 is an opaque lens and is placed in the third and fifth through slots of the turntable 221.

[0044] The design of the six through-slots of the rotating disc frame 221 makes the optical lenses 222 more evenly distributed, and the angle stroke of switching between the optical lenses is smaller, so that the lens switching can be faster, the design of leaving one slot without placing the optical lens 221 improves the overall light quantity, so that the image sensor 300 has better brightness and color performance output, optimizes the color balance, and improves the image quality. When the optical filter 2221 is rotated between the optical AF lens 410 and the image sensor 300 under the driving of the driving module 210, the motor 211 is temporarily paused, the optical AF lens 410 and the image sensor 300 cooperate to take three photos, and then continue to rotate, and the cycle is repeated. The placement order of the X filter 2221, the Y filter 2222 and the Z filter 2223 corresponds to the signal output generation curve of the upper computer, can standardize the analysis of a light signal, and the light shielding lens 2224 is a non-transparent lens, which can avoid too many un-spectroscopic light entering the image sensor 300 to reduce the accuracy, and the light shielding lens 2224 can also be replaced by a filter capable of realizing other functions, and has the space for function expansion.

[0045] In some embodiments of the present application, the shell 100 comprises an upper cover plate 140, a bottom plate 110 and an outer cover 120 arranged between the upper cover plate 140 and the bottom plate 110, the upper cover plate 140 is provided with a through slot, the bottom plate 110 is provided with a stepped through hole, as shown in Figure 3 , the outer cover 120 is connected between the bottom plate 110 and the upper cover plate 140, the upper cover plate 140 is provided with a through slot which can be connected with the signal output of the upper computer, and the bottom plate 110 is provided with a stepped through slot for placing the photographing module 400. The design of the through slot of the upper cover plate 140 and the stepped through hole of the bottom plate 110 makes the whole device more closely connected, occupies less space, and can adapt to more scenes.

[0046] In some embodiments of the present application, the driving module 210 comprises a motor 211, a connector 212 and a bearing table 213, the motor 211 is connected with the support 130 through the bearing table 213, the rotating shaft of the motor 211 is connected with the upper end of the connector 212, and the lower end of the connector 212 is provided with the light filter disc 220.

[0047] Reference Figure 4 and Figure 5As shown, the motor 211 is a stepper motor of model 42HS01, which is installed on a bearing table 213, the bearing table 213 is installed on the support 130, the rotating shaft of the motor 211 is connected with the connector 212 through the bearing table 213, the other end of the connector 212 is connected with the filter disc 220, and the rotating shaft of the motor 211 rotates to drive the filter disc 220 to rotate through the connector 212. The height of the bearing table 213 is selected according to the length of the rotating shaft of the motor 211, so that the length of the rotating shaft of the motor 211 can be stably connected with the connector 212. Of course, the motor 211 can also be a stepper motor of model 42HS02, 42HS03 and 42HS04.

[0048] In some specific embodiments of the present application, the connector 212 and the support 130 are clamped with a first positioning ring 600, and the lower end of the connector 212 is provided with a second positioning ring 700, and the second positioning ring 700 is clamped between the filter disc 220 and the bottom plate 110.

[0049] Referring to Figure 5 As shown, the first positioning ring 600 is clamped between the connector 212 and the support 130, and the second connecting ring 700 is arranged between the filter disc 220 and the bottom plate 110. The relative position of the connector 212 and the support 130 is stabilized by the first positioning ring 600, so that the offset and collision caused by the rotation and vibration of the motor 211 are avoided. The position of the filter disc 220 and the bottom plate 110 is stabilized by the second positioning ring 600, so that the offset and collision caused by the rotation and vibration of the motor 211 are avoided, and the filter disc 220 can rotate stably.

[0050] In some specific embodiments of the present application, the camera module 400 includes an optical AF lens 410 and an adapter ring 420, the optical AF lens 410 is arranged on the adapter ring 420, the optical AF lens 410 is provided with a corresponding number of touch pads which are in contact with the touch points of the adapter ring 420, the adapter ring 420 is arranged on the bottom plate 110, the bottom surface of the adapter ring 420 is flush with the bottom surface of the bottom plate 110, and the adapter ring 420 is electrically connected with the control module 500.

[0051] Referring to Figure 2 and Figure 3As shown, the optical AF lens 410 is connected to the bottom plate 110 through the adapter ring 420, the optical AF lens 410 is provided with a corresponding number of touch pads in contact with the adapter ring 420 contacts, and the adapter ring 420 contacts are electrically connected with the control module 500. The control panel 500 can continuously control the optical AF lens 410 to focus and shoot by electrically connecting with the adapter ring 420, and record the relevant data feedback to the host computer, so that the optical AF lens 410 can adjust to obtain the best focal length position for product light measurement. The interface of the adapter ring 420 corresponds to the bayonet of the optical AF lens 410, and the optical AF lens 410 can be an RF interface, an EF interface and a CS interface, and the adapter ring 420 will also use an RF interface, an EF interface and a CS interface adapter ring 420.

[0052] In some embodiments of the utility model, the support 130 is provided with a heat dissipation module 800, and the heat dissipation module 800 is on both sides of the image sensor 300 and the driving device 210. Figure 2 And Figure 3 As shown, one fan is arranged on each side of the image sensor 300 and the driving device 210, and the fan openings are opposite and can blow air to the image sensor 300 and the driving device 210 for heat dissipation, so as to better ensure the operation efficiency of the image sensor 300 and the driving device 210 and protect the image sensor 300 and the driving device 210 from overheating and burning out. Of course, the number of heat dissipation modules 800 can also be three, four and five, etc. The heat dissipation module 800 can also be a water heat dissipation device, an air cooling heat dissipation device and a heat pipe heat dissipation device, etc.

[0053] In some embodiments of the utility model, a miniature groove photoelectric sensor 510 electrically connected with the control module 500 is further included, and the miniature groove photoelectric sensor 510 is arranged in adaptation with the light shield 223. When the light filter disc 220 rotates, the light shield 223 passes through the sensor 510. Figure 6 As shown, the miniature groove photoelectric sensor 510 is a miniature groove photoelectric sensor of LU-U24N type, is provided with a groove structure, and when the motor 211 drives the light filter module 220 to rotate, the light shield 223 will pass through the groove of the sensor 510 every time it rotates one circle. The sensor 510 correspondingly feeds back a signal to the control module 500, the control module 500 feeds back to the host computer for data recording, and whether the light filter module 220 rotates normally is judged. Of course, the miniature groove photoelectric sensor 510 can also be a LU-R45N, LU-F45N and LU-U45N type sensor.

[0054] The utility model discloses an imaging colorimeter.

[0055] When the optical test is performed on the test product, the driving module 210 drives the filter disc 220 to rotate, the camera module 400 receives the light passing through the filter disc 220, the filter disc 220 projects the light transmitted by the camera module 400 to the image sensor 300 after physical splitting and filtering, the image sensor 300 converts the optical signal into an electrical signal and transmits the electrical signal to the control module 500, and the control module 500 transmits the electrical signal to the upper computer.

[0056] The embodiments of the utility model are explained in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. An imaging colorimeter characterized by, Include: The shell (100) is provided with a support (130) in the shell (100); Photography module (400), the photography module (400) is provided in the bottom of the shell (100); Filter module (200), the filter module (200) includes drive module (210) and filter disc (220) connected with the output end of the drive module (210), the drive module (210) is arranged on the support (130), the filter disc (220) is located between the photography module (400) and the support (130); Image sensor (300), the image sensor (300) is arranged on the support (130); Control module (500), the control module (500) is electrically connected with the image sensor (300), the photography module (400) and the drive module (210) respectively; wherein, The light received by the photography module (400) is transmitted to the image sensor (300) through the filter module (200).

2. An imaging colorimeter according to claim 1, wherein, The filter disc (220) includes a turntable frame (221), an optical lens (222) and a light shield (223), the turntable frame (221) is provided with a through slot, the optical lens (222) is arranged in the through slot, the bottom surface of the optical lens (222) is flush with the bottom surface of the turntable frame (221), the light shield (223) is arranged on the side of the turntable frame (221), and the bottom surface of the light shield (223) is flush with the bottom surface of the turntable frame (221).

3. An imaging colorimeter according to claim 2, wherein, The through slot includes six, the optical lens (222) includes X filter (2221), Y filter (2222), Z filter (2223) and two pieces of light shielding lens (2224), wherein, the X filter (2221), Y filter (2222) and Z filter (2223) are respectively installed in the first, second and sixth through slot, and the two pieces of light shielding lens (2224) are installed in the third and fifth through slot.

4. An imaging colorimeter according to claim 1, wherein, The shell (100) includes an upper cover plate (140), a bottom plate (110) and a cover (120) arranged between the upper cover plate (140) and the bottom plate (110), the upper cover plate (140) is provided with a through slot, and the bottom plate (110) is provided with a stepped through hole.

5. An imaging colorimeter according to claim 4, wherein, The drive module (210) includes a motor (211), a connector (212) and a bearing table (213), the motor (211) is connected with the support (130) through the bearing table (213), the rotating shaft of the motor (211) is connected with the upper end of the connector (212), and the lower end of the connector (212) is provided with the filter disc (220).

6. An imaging colorimeter according to claim 5, wherein, The first positioning ring (600) is clamped between the connector (212) and the support (130), the second positioning ring (700) is arranged at the lower end of the connector (212), and the second positioning ring (700) is clamped between the filter disc (220) and the bottom plate (110).

7. An imaging colorimeter according to claim 4, wherein, The photographing module (400) comprises an optical AF lens (410) and an adapter ring (420), the optical AF lens (410) is arranged on the adapter ring (420), the optical AF lens (410) is provided with a corresponding number of contact pads, and the contact pads are in contact with contacts of the adapter ring (420), the adapter ring (420) is arranged on the bottom plate (110), the bottom surface of the adapter ring (420) is flush with the bottom surface of the bottom plate (110), and the adapter ring (420) is electrically connected with the control module (500).

8. The imaging colorimeter of claim 1, wherein, The support (130) is provided with a heat dissipation module (800), and the heat dissipation module (800) is arranged on both sides of the image sensor (300) and the driving module (210).

9. An imaging colorimeter according to claim 2, wherein, The control module (500) is further electrically connected with a micro slot photoelectric sensor (510), the micro slot photoelectric sensor (510) is arranged to be matched with the light shield (223), and the light filter disc (220) drives the light shield (223) to pass through the micro slot photoelectric sensor (510) when rotating.

10. A detection device, characterized in that The imaging colorimeter comprises the imaging colorimeter according to any one of claims 1 to 9.

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