CN210112133U - Focusing apparatus - Google Patents
Focusing apparatus Download PDFInfo
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- CN210112133U CN210112133U CN201921491395.4U CN201921491395U CN210112133U CN 210112133 U CN210112133 U CN 210112133U CN 201921491395 U CN201921491395 U CN 201921491395U CN 210112133 U CN210112133 U CN 210112133U
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Abstract
The utility model relates to a focusing equipment. The focusing apparatus includes: an equipment support; the turntable assembly is arranged on the equipment bracket; the feeding station, the first pre-electrifying station, the first focusing station, the second pre-electrifying station and the second focusing station are sequentially arranged along the circumferential direction of the turntable assembly; the first pre-electrifying station is used for pre-electrifying the camera module; the first focusing station is used for focusing the camera module for the first time in the pre-electrifying process; the second pre-electrifying station is used for continuously electrifying the camera module until electrifying is completed; and the second focusing station is used for performing definition rechecking on the camera module subjected to the first focusing and electrifying, and performing second focusing on the camera module when the definition of the camera module does not meet the preset requirement. The focusing equipment of this application can improve the efficiency of focusing on the one hand, and on the other hand can also guarantee the precision of focusing.
Description
Technical Field
The utility model relates to an optical device adjusts technical field, especially relates to a focusing equipment.
Background
Along with the development of electronic technology, the requirements and requirements of various electronic products such as mobile phones, computers and the like on the cameras are also continuously improved, the quality of one camera can be measured mainly through the definition of image data shot by the camera, and in order to achieve the purpose, all major manufacturers can focus the camera in the process of assembling the camera before the camera products leave a factory.
Cameras, also referred to as camera modules, may generally include: components such as a lens, a photosensitive chip, and an FPC; focusing equipment for a camera module mainly comprises powered focusing equipment and unpowered focusing equipment at present, wherein the unpowered focusing refers to that a photosensitive chip of the camera is shot by an image sensor in the process of powering on the camera, and then the number of pixels in the shot image is observed to rotate a lens of the camera so as to determine an ideal focusing position; and the power-on focusing refers to that after the camera is electrified, a special test card is shot by controlling a camera module, then the shot image is analyzed, and finally, the lens of the camera is adjusted according to the analysis result so as to determine an ideal focusing position.
The existing pure electrification focusing equipment is accurate in definition of the adjusted camera module and can also detect whether the camera is focused or not, but the efficiency is low, and the pure non-electrification focusing equipment is high in efficiency, but the adjusted definition is not accurate enough, so that the camera module cannot be detected.
SUMMERY OF THE UTILITY MODEL
Based on this, it is necessary to provide a focusing apparatus in view of the above-described problems.
A focusing device is used for realizing definition adjustment of a camera module; the focusing apparatus includes:
an equipment support;
the turntable assembly is arranged on the equipment bracket; the feeding station, the first pre-electrifying station, the first focusing station, the second pre-electrifying station and the second focusing station are sequentially arranged along the circumferential direction of the turntable assembly;
the first pre-electrifying station is used for pre-electrifying the camera module;
the first focusing station is used for focusing the camera module for the first time in the pre-electrifying process;
the second pre-electrifying station is used for continuously electrifying the camera module until electrifying is completed;
and the second focusing station is used for performing definition rechecking on the camera module after the first focusing and electrifying are completed, and performing second focusing on the camera module when the definition of the camera module does not meet the preset requirement.
In one embodiment, the focusing device further comprises a feeding mechanism, a first pre-electrifying mechanism, a first focusing mechanism, a second pre-electrifying mechanism and a second focusing mechanism, wherein the feeding mechanism, the first pre-electrifying mechanism, the second pre-electrifying mechanism and the second focusing mechanism are arranged in one-to-one correspondence to each station.
In one embodiment, the first focusing mechanism includes an image sensor for acquiring image data of a light sensing chip in the camera module.
In one embodiment, the image sensor is an industrial camera.
In one embodiment, the second focusing mechanism includes an image processing unit, and the image processing unit is configured to determine whether the sharpness of the image data captured by the camera module adjusted by the first focusing mechanism meets a preset requirement.
In one embodiment, the device further comprises a dispensing station and a curing station which are sequentially arranged between the second focusing station and the feeding station; and all the stations are arranged in the circumferential direction of the turntable assembly according to the sequence of the feeding station, the first pre-electrifying station, the first focusing station, the second pre-electrifying station, the second focusing station, the dispensing station and the curing station.
In one embodiment, the stations are arranged clockwise in the circumferential direction of the turntable assembly according to the sequence of the feeding station, the first pre-electrifying station, the first focusing station, the second pre-electrifying station, the second focusing station, the dispensing station and the curing station.
In one embodiment, the device further comprises a dispensing mechanism and a curing mechanism which are arranged in one-to-one correspondence with the dispensing station and the curing station.
In one embodiment, the device further comprises a dirt detection station arranged between the second focusing station and the dispensing station; and all the stations are arranged in the circumferential direction of the turntable assembly according to the sequence of the feeding station, the first pre-electrifying station, the first focusing station, the second pre-electrifying station, the second focusing station, the dirt detection station, the dispensing station and the curing station.
In one embodiment, the device further comprises a contamination detection mechanism arranged corresponding to the contamination detection station.
According to the focusing equipment, the first focusing station is arranged between the first pre-electrifying station and the second pre-electrifying station, the first pre-electrifying station is used for electrifying the camera module, the second pre-electrifying station is used for continuously electrifying the camera module until electrifying is completed, namely, the first focusing station is focusing in the electrifying process (not successfully electrified) of the camera module, and the second focusing station is arranged behind the second pre-electrifying station, namely, the second focusing station is focusing after electrifying of the camera module is completed.
Drawings
FIG. 1 is a block diagram of a focusing apparatus in one embodiment;
fig. 2 is a schematic structural diagram of a focusing apparatus in an embodiment.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, 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 invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Cameras, also known as Camera modules (CCMs), are electronic devices essential to image capture, and their main structures and components generally include: components such as a lens, a photosensitive chip, and an FPC; the working principle of the camera module is as follows: an optical image generated by an object through a lens is projected on the surface of an image sensor, then converted into an electric signal, converted into a digital image signal through magic conversion, and then sent to a digital signal processing chip for processing.
At present, focusing equipment for a camera module mainly comprises powered focusing equipment and unpowered focusing equipment. In the focusing process of the camera module, the camera module needs to be electrified, a general electrifying process has a certain time (dozens of seconds), and the electrifying and focusing are not carried out, namely, a photosensitive chip of the camera module is shot through an image sensor in the unsuccessfully electrifying process of the camera module, and then the lens of the camera module is rotationally adjusted by judging the number of pixels in the shot image so as to determine an ideal focusing position; and the power-on focusing refers to that after the camera module is powered on, a special test card (resolution test card) is shot by controlling the camera module, then the definition of a shot image is analyzed, and finally the rotation direction of a lens in the camera module is adjusted according to the analysis result so as to determine an ideal focusing position.
The existing pure power-on focusing equipment is accurate in definition of the adjusted camera module and can also detect whether the camera is focused on the right side or not, but the efficiency is low, and the pure power-on focusing equipment is high in efficiency but not accurate enough in definition of adjustment, so that the camera module cannot be detected.
Based on this, the present application wants to provide a technical solution capable of solving the above technical problems, which will be described in detail by the following embodiments.
Please refer to fig. 1 and fig. 2, which are schematic block diagrams of a focusing apparatus in an embodiment, where the focusing apparatus may be used to adjust the resolution of a camera module; the camera module that this application adopted can include: the device comprises a lens, a photosensitive chip, an FPC and other components, wherein the lens can comprise a lens, a lens bracket, an infrared filter and the like, and the lens is an important component of the lens; the photosensitive chip can be an electric coupling CCD image sensor and can also be a complementary metal oxide semiconductor CMOS image sensor; the imaging effect of the electric coupling CCD image sensor is good, but the cost is high, the energy consumption is high, the electric coupling CCD image sensor is mainly used for products such as high-end digital cameras, the cost of the complementary metal oxide semiconductor CMOS image sensor is low, the power consumption is low, but the imaging quality is slightly inferior, but the light efficiency can be improved by changing the internal structure of the component, and therefore the photographing effect under the low-illumination condition is improved.
The focusing apparatus may include a turntable assembly 10 and an apparatus mount 20, the turntable assembly 10 being provided on the apparatus mount 20.
As shown in fig. 1, with reference to fig. 2, a feeding station 110, a first pre-electrifying station 120, a first focusing station 130, a second pre-electrifying station 140, and a second focusing station 150 are sequentially arranged along the circumferential direction of the turntable assembly 10; the stations can be arranged in the circumferential direction of the turntable assembly 10 in a clockwise manner, and accordingly, when the turntable assembly works specifically, the sequence of the stations is carried out in a clockwise manner; the rotary table can be arranged in the circumferential direction of the rotary table assembly 10 in a counterclockwise manner, and accordingly, when the rotary table works specifically, the sequence of the stations is also carried out in a counterclockwise sequence; as shown in fig. 1, the stations of the present application are arranged in a clockwise manner in the circumferential direction of the turntable assembly 10, and accordingly, during operation, a feeding operation is performed on the feeding station 110, and then a pre-power-up operation is performed on the first pre-power-up station 120, …, until finally a sharpness review and a second focusing operation are completed on the second focusing station 150; further, the first pre-power-on station 120 of the present application is mainly used for pre-powering on the camera module, the second pre-power-on station 140 continues to power on the camera module until power on is completed, and the first focusing station 130 is disposed between the first pre-power-on station 120 and the second pre-power-on station 140, that is, the first focusing station 130 is a focusing station performed in a process (that is, not successfully powered) in which the camera module is being powered on, that is, a focusing station is not powered on; on the station, a photosensitive chip of the camera module is shot mainly through an image sensor, and then the lens of the camera module is rotationally adjusted by judging the number of pixels in the shot image so as to determine an ideal focusing position, wherein the normal rotational adjustment direction is clockwise; and the second focusing station 150 is disposed behind the second pre-power-on station 140, that is, the second focusing station 150 is a focusing station that is performed after the camera module is powered on, that is, a power-on focusing station, at the station, a special test card (resolution test card) is shot mainly by controlling the camera module, then the definition of the shot image is analyzed, finally, whether the definition of the camera meets the preset requirement is judged according to the analysis result, if the preset requirement is not met, performing second focusing on the camera module, wherein the second focusing can be used for adjusting the rotation direction of the lens in the camera module so as to determine the ideal focusing position, the normal rotation adjusting direction is opposite to the first focusing direction, for example, the adjustment direction of the first focusing may be clockwise, and the adjustment direction of the second focusing may be counterclockwise.
Because first focusing station 130 is the mode of not going up the electric focusing, and second focusing station 150 is the mode of going up the electric focusing, so usually in the definition of the camera module of adjusting on first focusing station 130 can be less than the definition of the camera module of adjusting on second focusing station 150, through placing the camera module in first focusing station 130 earlier and carrying out focusing for the first time (definition regulation is lower, and is efficient), then place the camera module in second focusing station 150 again and carry out definition review and focusing for the second time (definition regulation is accurate, and is efficient), can compromise the regulation precision and the regulation efficiency of camera module.
In an embodiment, the focusing apparatus of the present application may further include a feeding mechanism (not shown), a first pre-electrifying mechanism (not shown), a first focusing mechanism (not shown), a second pre-electrifying mechanism (not shown), and a second focusing mechanism (not shown) that are arranged in one-to-one correspondence with each station. The above-mentioned mechanism is used for executing the function corresponding to the above-mentioned station, and is not further described herein.
Further, the first focusing mechanism may include an image sensor (not shown) for acquiring image data of a light sensing chip in the camera module; in particular, the image sensor may be an industrial camera. The first focusing mechanism shoots a photosensitive chip through an industrial camera and judges the number of pixels in a shot picture, and generally speaking, the more the number of pixels in shot image data is, the higher the definition is represented; since it is generally unknown at the time of judgment which time the number of pixels will be the most, the general practice is: the lens of the camera module is adjusted in a clockwise rotating mode, the situation that the lens passes through the clearest position cannot be realized until the number of pixels is reduced at a certain moment, and the lens is generally rotated anticlockwise to enable the camera module to return to the clearest position due to the fact that the lens rotates through the clearest position; in the present application, when adjusting the lens according to the image data captured by the industrial camera, the adjustment may be performed manually, or may be performed by a mechanical device (e.g., a manipulator), which is not further limited in this application.
Furthermore, the second focusing mechanism may include an image processing unit (not shown), and the image processing unit is configured to determine whether the sharpness of the image data captured by the camera module adjusted by the first focusing mechanism meets a preset requirement; after the definition of the camera module is adjusted by the first focusing mechanism, the camera module can be controlled to photograph a test card (resolution test card), wherein the resolution test card is an image resolution graphic card which meets the national or international industry standard; then, the definition of the shot image data is analyzed through an image processing unit to see whether the preset requirements are met or not, specifically, the definition of the image data shot by the camera module can be detected in a wedge line pair detection mode, and a wedge line testing method is also called as a TVline (television line) line pair detection method, is intuitive and can be directly observed by naked eyes; the testing requirements are relatively low; large data coverage and the like. If the definition of the picture shot by the camera module meets the preset requirement, the definition of the picture is correspondingly detected by a wedge line testing method, a definition threshold value can be set to be 1000 lines exemplarily, and if the actual testing value is less than 1000 lines (such as 900 lines), the definition is judged to be not met the requirement; in the application, after the definition is judged to be not capable of meeting the requirement according to the wedge line testing method, the most clear position can be found through manual operation or through the clockwise rotation of a lens of a mechanical device (such as a manipulator) control camera module, and if the most clear position cannot be found, the most clear position is found through the anticlockwise rotation until the definition is found to be capable of meeting the requirement.
In order to avoid the camera module from being dirty or stained and to fix the camera module after the definition adjustment is completed, please continue to refer to fig. 1 and 2, the focusing apparatus of the present application may further include a dirty detection station 160, a dispensing station 170, and a curing station 180, which are sequentially disposed between the second focusing station 150 and the feeding station 110; the stations are arranged in the circumferential direction of the turntable assembly 10 according to the sequence of the feeding station 110, the first pre-electrifying station 120, the first focusing station 130, the second pre-electrifying station 140, the second focusing station 150, the contamination detection station 160, the dispensing station 170 and the curing station 180. Further, each station can arrange according to the clockwise, also can arrange according to anticlockwise, and each station is preferably arranged according to clockwise in carousel subassembly 10's circumference in this application. The contamination detection station 160 is mainly used for performing contamination detection on the camera module after the focusing is completed; the glue dispensing station 170 is mainly used for dispensing the camera module after the dirt detection is finished, and the curing station 180 is mainly used for carrying out ultraviolet illumination curing on the camera module after the glue dispensing; that is, the present application performs the dirt detection, dispensing and curing operations after the second focusing.
Further, a dirt detection mechanism (not shown), a dispensing mechanism (not shown) and a curing mechanism (not shown) are further disposed at positions corresponding to the dirt detection station 160, the dispensing station 170 and the curing station 180, and functions of the dirt detection mechanism, the dispensing mechanism and the curing mechanism corresponding to the aforementioned stations are not further described herein.
To sum up, above-mentioned focusing equipment carries out focusing for the first time (definition adjustment is lower, and is efficient) on first focusing station 130 through arranging the camera module in earlier, then arranges the camera module in second focusing station 150 on and carries out focusing for the second time (definition adjustment is accurate, and efficiency is lower), can improve the efficiency of focusing on the one hand, and on the other hand can also guarantee the precision of focusing.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A focusing device is used for realizing definition adjustment of a camera module; characterized in that the focusing apparatus comprises:
an equipment support;
the turntable assembly is arranged on the equipment bracket; the feeding station, the first pre-electrifying station, the first focusing station, the second pre-electrifying station and the second focusing station are sequentially arranged along the circumferential direction of the turntable assembly;
the first pre-electrifying station is used for pre-electrifying the camera module;
the first focusing station is used for focusing the camera module for the first time in the pre-electrifying process;
the second pre-electrifying station is used for continuously electrifying the camera module until electrifying is completed;
and the second focusing station is used for performing definition rechecking on the camera module after the first focusing and electrifying are completed, and performing second focusing on the camera module when the definition of the camera module does not meet the preset requirement.
2. The focusing device of claim 1, further comprising a feeding mechanism, a first pre-electrifying mechanism, a first focusing mechanism, a second pre-electrifying mechanism and a second focusing mechanism arranged in one-to-one correspondence with each station.
3. The apparatus of claim 2, wherein the first focus mechanism comprises an image sensor for acquiring image data of a light sensing die in the camera module.
4. The focusing apparatus of claim 3, wherein the image sensor is an industrial camera.
5. The focusing apparatus of claim 2, wherein the second focusing mechanism comprises an image processing unit for determining whether the sharpness of the image data captured by the camera module adjusted by the first focusing mechanism satisfies a predetermined requirement.
6. The focusing apparatus of any one of claims 1-5, further comprising a dispensing station and a curing station disposed in sequence between the second focusing station and the loading station; and all the stations are arranged in the circumferential direction of the turntable assembly according to the sequence of the feeding station, the first pre-electrifying station, the first focusing station, the second pre-electrifying station, the second focusing station, the dispensing station and the curing station.
7. The focusing equipment of claim 6, wherein the stations are arranged clockwise in the circumferential direction of the turntable assembly according to the sequence of the feeding station, the first pre-electrifying station, the first focusing station, the second pre-electrifying station, the second focusing station, the dispensing station and the curing station.
8. The focusing apparatus of claim 7, further comprising a dispensing mechanism and a curing mechanism disposed in one-to-one correspondence with the dispensing station and the curing station.
9. The apparatus of claim 6, further comprising a smudge detection station disposed between the second focus station and the dispensing station; and all the stations are arranged in the circumferential direction of the turntable assembly according to the sequence of the feeding station, the first pre-electrifying station, the first focusing station, the second pre-electrifying station, the second focusing station, the dirt detection station, the dispensing station and the curing station.
10. The apparatus of claim 9, further comprising a contamination detection mechanism disposed in correspondence with the contamination detection station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921491395.4U CN210112133U (en) | 2019-09-09 | 2019-09-09 | Focusing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921491395.4U CN210112133U (en) | 2019-09-09 | 2019-09-09 | Focusing apparatus |
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| CN210112133U true CN210112133U (en) | 2020-02-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110740255A (en) * | 2019-09-09 | 2020-01-31 | 深圳市爱普泰科电子有限公司 | Focusing apparatus and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110740255A (en) * | 2019-09-09 | 2020-01-31 | 深圳市爱普泰科电子有限公司 | Focusing apparatus and method |
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