The subject matter relates to detection devices for imaging devices, and more particularly, to a fixing structure and a detection device having the fixing structure.
Electronic devices, such as tablet computers and smart phones, have camera modules. An auto-focus structure of the camera module may include a lens and a voice coil motor (VCM) for driving the lens to move, so that an auto-focus function can be realized.
The auto-focus structure needs to be tested to ensure an optical performance of the camera module. However, the lens and the VCM are independently tested. An existing detection device cannot be used when the lens is cooperated with the VCM. That is, a working state when the lens is cooperated with the VCM cannot be detected. Thus, whether the optical performance of the lens is qualified when the VCM drives the lens to move cannot be detected. Therefore, there is room for improvement in the art.
Implementations of the present technology will now be described, by way of embodiment, with reference to the attached figures.
It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous components. In addition, numerous specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those of ordinary skill in the art that the embodiments described herein can be practiced without these specific details. In other instances, methods, procedures, and components have not been described in detail so as not to obscure the related relevant feature being described. Also, the description is not to be considered as limiting the scope of the embodiments described herein. The drawings are not necessarily to scale and the proportions of certain parts may be exaggerated to better illustrate details and features of the present disclosure.
The term “comprising,” when utilized, means “including, but not necessarily limited to”; it specifically indicates open-ended inclusion or membership in the so-described combination, group, series, and the like.
Referring to
Referring to
A first coil 16 is disposed on the first protrusion 13. A second coil 17 is disposed on the second protrusion 14. One of the first coil 16 and the second coil 17 is a positive coil, and the other one is a negative coil. Both the first coil 16 and the second coil 17 are electrically connected to the electronic connector 30. The first coil 16 and the second coil 17 can effectively energize the second supporting disc 20 when the first supporting disc 10 is connected to the second supporting disc 20. In at least one embodiment, the first supporting disc 10 is made of an insulating material. Each of the first coil 16 and the second coil 17 can be made of metal, conducive plastic, or composite material.
A surface of the second supporting disc 20 facing the first supporting disc 10 includes a positioning protrusion 23. The positioning protrusion 23 is received in the first gap 15. Thus, the first supporting disc 10 and the second supporting disc 20 are detachably connected together. In at least one embodiment, the positioning protrusion 23 is annular, so that the connection between the second supporting disc 20 and the first supporting disc 10 is more stable.
Referring to
In addition, the fixing structure 100 can also test the optical performance of the lens 300 separately. That is, the lens 300 is first in the first receiving groove 21, causing the lens 300 to face the first through hole 11. Then, the optical detection module 401 can test the optical performance of the lens 300.
Referring to
Referring to
The second supporting disc 20 also defines a first mounting hole 25 and a second mounting hole 26 each passing through the bottom of the third receiving groove 24. The first pin 31 of the electronic connector 30 passes through the first mounting hole 25, and is then electrically connected to the first coil 16. The second pin 32 passes through the second mounting hole 26, and is then electrically connected to the second coil 17. The first coil 16 and the second coil 17 are energized by the external power supply connected by the electronic connector 30. When the external power supply energizes the voice coil motor 200 through the electronic connector 30, the voice coil motor 200 drives the lens 300 to move. In at least one embodiment, the external power supply is controlled by a digital power controller to provide driving currents of different values to the voice coil motor 200. Therefore, the optical performance of the lens 300 driven by different driving currents can be tested.
Referring to
Referring to
With the above configuration, the fixing structure 100 enables the test of the optical performance of the lens 300 when driven by the voice coil motor 200. Furthermore, the first supporting disc 10 and the second supporting disc 20 are movably connected to each other, so that the second supporting disc 20 can be changed according to the size of the voice coil motor 200 and lens 300.
Even though information and advantages of the present embodiments have been set forth in the foregoing description, together with details of the structures and functions of the present embodiments, the disclosure is illustrative only. Changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the present exemplary embodiments, to the full extent indicated by the plain meaning of the terms in which the appended claims are expressed.
Number | Date | Country | Kind |
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202110401120.2 | Apr 2021 | CN | national |
Number | Name | Date | Kind |
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8098284 | Ushijima | Jan 2012 | B2 |
20030021019 | Kanao | Jan 2003 | A1 |
20070131881 | Kim | Jun 2007 | A1 |
20070165131 | Ish-Shalom | Jul 2007 | A1 |
20120229652 | Lee | Sep 2012 | A1 |
20220326475 | Liu | Oct 2022 | A1 |
Number | Date | Country |
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102937701 | Feb 2013 | CN |
201634913 | Oct 2016 | TW |
Number | Date | Country | |
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20220337728 A1 | Oct 2022 | US |