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Imaging module, forming method thereof and lens assembly

A technology of imaging modules and piezoelectric elements, which is applied in the fields of electrical components, image communication, and electric solid-state devices, and can solve problems such as large space occupation, insufficient driving ability, and complex structure

Active Publication Date: 2021-02-09
NINGBO SEMICON INT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, unlike traditional SLR cameras, it is a huge engineering challenge to implement this function in electronic terminals such as mobile phones, miniature cameras, and cameras with small spaces
Moreover, as the imaging systems of electronic terminals such as mobile phones become more and more complex, and the lens modules become heavier and heavier, the driving capabilities of traditional driving mechanisms such as VCM motors are gradually insufficient, and the structure is complex and takes up a lot of space.

Method used

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  • Imaging module, forming method thereof and lens assembly
  • Imaging module, forming method thereof and lens assembly
  • Imaging module, forming method thereof and lens assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0104] Such as figure 1 As shown, this embodiment provides an imaging module, including:

[0105] A moved element 30, which is a lens group, a single lens sheet or an aperture;

[0106] The limit groove 40 is fixed on the surface of the moved element 30, the surface of the moved element 30 refers to the upper surface, lower surface or side surface of the moved element 30;

[0107] A piezoelectric element 20 comprising a movable end and a fixed end, the movable end extends into the limiting groove 40 and is wholly or partly located in the limiting groove 40, the limiting groove 40 is the movable end providing a moving space, when the piezoelectric element 20 is in an energized state, the movable end warps upward or downward relative to the fixed end to move the moved element 30;

[0108] A support block 50 is used to support and fix the piezoelectric element 20, and the fixed end is fixed to the support block 50;

[0109] The external signal connection end is electrically co...

Embodiment 2

[0138] The difference from Embodiment 1 is that in this embodiment, if Figure 11 As shown, the fixed end of the piezoelectric element 20 is inserted into the support block 50 for fixing.

[0139] The support block 50 includes a first layer support block 51 and a second layer support block 52 stacked in sequence from bottom to top, and the fixed end of the piezoelectric element 20 is fixed to the first layer support block 51 and the second layer support block. between blocks 52. The support block 50 of the present invention is not limited to only including two layers of support blocks, and may also include one layer, three layers, four layers, five layers, etc., as long as the fixed end of the piezoelectric element 20 is inserted into the support block 50 Just fix it.

[0140] see Figure 11 and figure 2 , when the first lead-out end 251 and the second lead-out end 252 are located on the top surface of the piezoelectric element 20, the external signal connection end inclu...

Embodiment 3

[0145] The difference from Embodiment 1 and Embodiment 2 is that in this embodiment, the moved element 30 is an imaging sensing element.

[0146] Such as Figure 14 with Figure 15a As shown, the top surface of the piezoelectric element 20 is also provided with a wiring layer 75, the wiring layer 75 is located in the insulating layer 25, and both ends have a first electrical connection terminal 71 exposing the insulating layer 25 and The fifth electrical connection terminal 74 . The first electrical connection end 71 is closer to the moved element 30 than the fifth electrical connection end 74, the upper surface of the moved element 30 is provided with a second electrical connection end 72, the first electrical connection end 71 and the second electrical connection end 72 are electrically connected through a flexible connector 73, and then a lead wire 76 is used to electrically connect the fifth electrical connection end 74 to the circuit board 10, so that the circuit board ...

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Abstract

The invention provides an imaging module and a forming method thereof, and a lens assembly. A piezoelectric element is connected with a moved element in a supporting manner, a limiting groove is formed in the surface of the moved element, the fixed end of the piezoelectric element is fixed to a supporting block, the movable end of the piezoelectric element extends into the limiting groove, and thelimiting groove provides a moving space for the movable end. The external signal connecting end electrically connected with the piezoelectric element is used for electrifying the piezoelectric element, so that the movable end of the piezoelectric element is warped upwards or downwards relative to the fixed end to move the moved element, the moving requirement of the moved element can be met, andcompared with a traditional driving mechanism such as a VCM motor, the combination of the piezoelectric element and the supporting block is light in weight, small in size, simple in structure, low incost, capable of achieving multi-dimensional movement and suitable for equipment such as an imaging module with the narrow space size, and the piezoelectric element is driven by pure voltage and freeof electromagnetic interference.

Description

technical field [0001] The invention relates to the technical field of motion control, in particular to an imaging module, a forming method thereof, and a lens assembly. Background technique [0002] In some electronic terminals, it is usually necessary to make some parts thereof translate, move vertically or tilt, so as to realize some special functions. For example, in various electronic terminals such as video cameras, cameras, and mobile phones with lens modules, a driving mechanism such as a VCM motor (Voice Coil Actuator / Voice Coil Motor) is usually used to make the movable lens or image sensor , shift in the direction of the optical axis to focus or zoom, or shift in a direction perpendicular to the direction of the optical axis to prevent optical shake. However, unlike traditional SLR cameras, it is a huge engineering challenge to realize this function in electronic terminals such as mobile phones, miniature cameras, and cameras with small spaces. Moreover, as the ...

Claims

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Application Information

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IPC IPC(8): H04N5/225H01L27/146
CPCH01L27/14634H01L27/1469H04N23/54H04N23/55
Inventor 桂珞黄河
Owner NINGBO SEMICON INT CORP
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