Structure of lens and fine adjustment module and assembly technology of lens and fine adjustment module
A module and lens technology, which is applied in the field of lens and fine-tuning module structure and assembly process, can solve the problems of time-consuming, high production cost, laborious focusing, etc., and achieve the goal of reducing production cost, saving assembly time and increasing production capacity Effect
Inactive Publication Date: 2014-04-16
无锡凯尔科技有限公司
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Problems solved by technology
[0003] The reference plane of the existing module is the surface of the circuit board, which has high requirements for the flatness of the circuit board, the symmetry of the center of the positioning hole of the circuit board, and the positioning center of the SMT. If the torque of the lens group is too large, it is laborious and time-consuming to adjust the focus, and it is easy to scratch the surface of the lens. If the torque of the lens group is too small, it is easy to run out of focus during dispensing, resulting in defective products. Group assembly is a waste of man-hours and low efficiency. Combining the above reasons, the production cost is relatively high
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[0021] The present invention will be further described below in conjunction with specific drawings.
[0022] Such as figure 1 As shown, the structure of the lens and fine-tuning module of the present invention includes an image sensor assembly D, such as Figure 4 As shown, the image sensor assembly D is composed of an image sensor 2 bonded on the surface of the circuit board 1; a mirror base assembly A is installed on the image sensor 2, and a lens barrel assembly B is fixed on the mirror base assembly A; as figure 2 As shown, the mirror base assembly A includes a mirror base 7, and a filter 4, a spacer ring 3, a second lens 5 and a light-shielding lens are sequentially installed in the mirror base 7 from the side close to the circuit board 1 to the side away from the circuit board 1. slice 6; as image 3 As shown, the lens barrel assembly B includes a lens barrel 8, and a first lens 9 is installed in the lens barrel 8;
[0023] In the prior art, the mirror base is instal...
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The invention relates to a structure of a lens and fine adjustment module and an assembly technology of the lens and fine adjustment module. The assembly technology adopts the following steps of: attaching an image sensor to the surface of a circuit board first; installing a lens base on the image sensor, and then installing a lens cone on the lens base; adjusting the definition of an image, and obtaining the structure of the lens and fine adjustment module by carrying out adhesive-dispense fixing and baking for the lens base and the image sensor as well as the lens base and the lens cone if the image is clear; and placing a fine adjustment adjusting ring between the lens base and the lens cone if the image is not clear, adjusting the distance between a first lens and a second lens until the image is clear, and then obtaining the structure of the lens and fine adjustment module by carrying out the adhesive-dispense fixing and baking between the lens base and the image sensor as well as among the lens base, the lens cone and the fine adjustment adjusting ring. According to the structure of the lens and fine adjustment module and the assembly technology of the lens and fine adjustment module, disclosed by the invention, the lens base is directly installed on the image sensor, thus the requirements on the evenness, the concentricity and the like of the circuit board are reduced, and the cost is effectively lowered.
Description
technical field [0001] The invention relates to a structure of a lens and a fine-tuning module and an assembly process thereof, and belongs to the technical field of camera modules in the photoelectric industry. Background technique [0002] The existing fixed-focus module is mainly composed of a lens group, an image sensor, and a circuit board. The image sensor is attached to the circuit board through SMT (Surface Mount Technology), and then the mirror base is also positioned on the circuit board. The lens and the base are connected by threads, and manual focus is made to make the focus of the lens fall on the image sensor. Imaging, and then glue on the thread of the lens to fix it. [0003] The reference plane of the existing module is the surface of the circuit board, which has high requirements for the flatness of the circuit board, the symmetry of the center of the positioning hole of the circuit board, and the positioning center of the SMT. If the torque of the lens ...
Claims
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IPC IPC(8): G02B7/00G02B7/02G02B7/04
Inventor 杨丽云
Owner 无锡凯尔科技有限公司