CN-121986280-A - Camera module and method for manufacturing the same

Abstract

The camera module includes a holder including a first barrel portion, a second barrel portion, and a third barrel portion, a first lens module coupled to the first barrel portion and including a first flange, a second lens module coupled to the second barrel portion and including a second flange, a third lens module coupled to the third barrel portion and including a third flange, a housing disposed behind the holder, a first substrate module disposed in a space within the housing and facing the first lens module in an optical axis direction, a second substrate module disposed in a space within the housing and facing the second lens module in the optical axis direction, a third substrate module disposed in a space within the housing and facing the third lens module in the optical axis direction, a first adhesive member disposed between the holder and the first substrate module, between the holder and the second substrate module, and between the holder and the third substrate module, and a second adhesive member disposed between the first flange and the first portion, between the second flange and the second portion, and between the third portion.

Inventors

• LI ZHENGXUN
• Pu Jijing
• JIN XIANGYOU

Assignees

• LG伊诺特有限公司

Dates

Publication Date

20260505

Application Date

20240816

Priority Date

20230925

Claims (10)

1. 1. A camera module, comprising: a holder including a first barrel portion, a second barrel portion, and a third barrel portion; A first lens module coupled to the first barrel portion and including a first flange; a second lens module coupled to the second barrel portion and including a second flange; a third lens module coupled to the third barrel portion and including a third flange; a housing disposed rearward of the retainer; A first substrate module disposed in a space within the housing and facing the first lens module in an optical axis direction; A second substrate module disposed in the space within the housing and facing the second lens module in the optical axis direction; a third substrate module disposed in the space within the housing and facing the third lens module in the optical axis direction; A first adhesive member provided between the holder and the first substrate module, between the holder and the second substrate module, and between the holder and the third substrate module, and And a second adhesive member provided between the first flange and the first barrel portion, between the second flange and the second barrel portion, and between the third flange and the third barrel portion.
2. 2. The camera module of claim 1, wherein each of the first and second adhesive members is an epoxy.
3. 3. The camera module of claim 1, wherein the rear surface of the retainer includes a rearwardly protruding guide coupled with the front surface of the first substrate module, the front surface of the second substrate module, and the front surface of the third substrate module.
4. 4. The camera module of claim 1, wherein the first, second, and third substrate modules each include a first substrate on a front surface of which an image sensor is disposed, a second substrate disposed rearward of the first substrate, a connection substrate connecting the first and second substrates, and a shield case disposed between the first and second substrates.
5. 5. The camera module according to claim 1, wherein heights of the first to third barrel portions protruding from a front of the holder are different from each other.
6. 6. The camera module of claim 1, wherein front surfaces of the first to third lens modules are disposed in a stepped configuration relative to each other along the optical axis direction.
7. 7. The camera module of claim 1, wherein the first adhesive member and the second adhesive member may each have a closed loop configuration.
8. 8. The camera module of claim 4, wherein the second substrate includes a connector protruding rearward from a rear surface of the second substrate, and Wherein the housing includes a connector extraction portion, the connector extraction portion protrudes rearward to accommodate the connector therein.
9. 9. A method of manufacturing a camera module, comprising: (a) Aligning the lens module by the first light source, the first sensor and the first clamp; (b) Aligning the holder using the second light source, the second sensor, and the second clamp; (c) Coupling the lens module obtained in step (a) with the holder obtained in step (b); (d) Coupling a substrate module with the rear surface of the holder according to step (c), and (E) An optical axis between an image sensor within the substrate module and a lens within the lens module is aligned.
10. 10. The method of claim 9, further comprising: applying a first adhesive member between the substrate module and the holder prior to step (e), and Curing the first adhesive member after step (e).

Description

Camera module and method for manufacturing the same Technical Field The teachings according to exemplary and non-limiting embodiments of the present invention relate generally to a camera module and a method of manufacturing a camera module. Background In recent years, ultra-compact camera modules have been developed and widely used in small electronic devices such as smart phones, notebook computers, and game machines. With the widespread use of automobiles, miniature cameras are now widely used not only in small electronic devices but also in vehicles. For example, a vehicle is equipped with a tachograph camera for protecting or providing objective evidence to a user in the event of a traffic accident, a rear view camera enabling a driver to monitor blind spots at the rear of the vehicle through a screen to ensure safety when backing, and a peripheral detection camera enabling monitoring of the surrounding environment of the vehicle. The camera includes a lens, a lens barrel for accommodating the lens, an image sensor for converting an image of an object collected by the lens into an electric signal, and a printed circuit board mounted with the image sensor. The housing forming the exterior of the camera is constructed in a completely sealed structure to prevent contamination of the internal components by foreign substances including moisture. A problem with camera modules based on conventional technology is that during assembly between the lens and the holder, the mechanical axis and the optical axis are not precisely aligned, resulting in unsatisfactory captured images. Disclosure of Invention Subject matter of the technology The present embodiment provides a camera module capable of acquiring an optimal image by precisely aligning a lens, a holder, and a substrate without error. Technical proposal A camera module according to an embodiment of the present invention may include a holder including a first barrel portion, a second barrel portion, and a third barrel portion, a first lens module coupled to the first barrel portion and including a first flange, a second lens module coupled to the second barrel portion and including a second flange, a third lens module coupled to the third barrel portion and including a third flange, a housing disposed rearward of the holder, a first substrate module disposed in a space within the housing and facing the first lens module in an optical axis direction, a second substrate module disposed in a space within the housing and facing the second lens module in an optical axis direction, a third substrate module disposed in a space within the housing and facing the third lens module in an optical axis direction, a first adhesive member disposed between the holder and the first substrate module, between the holder and the second substrate module, and between the holder and the third substrate module, and a second adhesive member disposed between the first flange and the first portion, between the second substrate module and the third barrel. Preferably, but not necessarily, the first and second adhesive members may each be an epoxy resin. Preferably, but not necessarily, the rear surface of the holder may include a guide protruding rearward, the guide being coupled with the front surface of the first substrate module, the front surface of the second substrate module, and the front surface of the third substrate module. Preferably, but not necessarily, the first, second, and third substrate modules may each include a first substrate on a front surface of which an image sensor is disposed, a second substrate disposed behind the first substrate, a connection substrate connecting the first and second substrates, and a shield case disposed between the first and second substrates. Preferably, but not necessarily, the heights of the first to third barrel portions protruding from the front of the holder may be different from each other. Preferably, but not necessarily, the front surfaces of the first to third lens modules may be disposed in a stepped configuration with respect to each other along the optical axis direction. Preferably, but not necessarily, the first adhesive member and the second adhesive member may each have a closed loop configuration. Preferably, but not necessarily, the housing may include a connector protruding rearward from a rear surface of the second substrate, and the housing may include a connector withdrawing portion protruding rearward from the rear surface to accommodate the connector therein. The method of manufacturing a camera module according to another embodiment of the present invention may include the steps of (a) aligning a lens module by a first light source, a first sensor, and a first holder, (b) aligning a holder using a second light source, a second sensor, and a second holder, (c) coupling the lens module obtained in step (a) with the holder obtained in step (b), (d) coupling a substrate module with a rear surface of the holder accordin