KR-20260062461-A - Reflection module and Camera module including the same

KR20260062461AKR 20260062461 AKR20260062461 AKR 20260062461AKR-20260062461-A

Abstract

A reflection module according to one embodiment of the present invention comprises: a housing; a rotating carrier disposed in the housing; a reflection holder on which a reflection member is disposed and which is rotatably supported on the rotating carrier with respect to a first axis; and a first ball member that contacts the rotating carrier and the reflection holder, respectively, and forms the first axis; wherein the first ball member comprises a plurality of ball members spaced apart in the direction of the first axis, and the plurality of contact points formed by the plurality of ball members with the reflection holder and the plurality of contact points formed by the plurality of ball members with the rotating holder may be provided at different positions in the direction of a second axis perpendicular to the first axis.

Inventors

이윤구
김포철
이타경

Assignees

삼성전기주식회사

Dates

Publication Date: 20260507
Application Date: 20241029

Claims (16)

Housing; A rotating carrier disposed in the above housing; A reflective holder having a reflective member disposed thereon and supported rotatably on the rotating carrier with respect to a first axis; and It includes a first ball member that contacts the rotation carrier and the reflection holder, respectively, and forms the first axis; The first ball member comprises a plurality of ball members spaced apart in the first axial direction, and A reflection module in which the plurality of contact points formed by the plurality of ball members with the reflection holder and the plurality of contact points formed by the plurality of ball members with the rotation holder are provided at different positions in the direction of a second axis perpendicular to the first axis.
In paragraph 1, The above-described reflection holder accommodates a portion of the first ball member and includes a first receiving groove and a second receiving groove spaced apart in the first axial direction. The above-described rotating carrier is a reflection module that accommodates another part of the first ball member and includes a third receiving groove facing the first receiving groove and a fourth receiving groove facing the second receiving groove.
In paragraph 2, The first ball member comprises a main ball member disposed between the first receiving groove and the third receiving groove, and a sub ball member disposed between the second receiving groove and the fourth receiving groove. A reflection module in which the number of contact points formed by the main ball member with the first receiving groove and the third receiving groove is greater than the number of contact points formed by the sub ball member with the second receiving groove and the fourth receiving groove.
In paragraph 3, The main ball member is in contact at three points with the first receiving groove and the third receiving groove, respectively, and The above-described sub-ball member is in two-point contact at either the second receiving groove or the fourth receiving groove, and in three-point contact at the other, a reflection module.
In paragraph 2, The first receiving groove, the second receiving groove, the third receiving groove, and the fourth receiving groove each include a plurality of inclined surfaces inclined in different directions, and The first ball member is a reflection module that contacts some of the inclined surfaces among the plurality of inclined surfaces.
In paragraph 5, A reflection module, wherein either of the first receiving groove and the second receiving groove comprises three inclined surfaces in contact with the first ball member, and the other comprises two inclined surfaces in contact with the first ball member.
In paragraph 5, The third receiving groove and the fourth receiving groove each include three inclined surfaces that contact the first ball member, and A reflection module in which the three inclined surfaces provided in the third receiving groove and the three inclined surfaces provided in the fourth receiving groove have different inclination directions.
In paragraph 5, The first ball member forms three contact points with some of the first receiving groove, the second receiving groove, the third receiving groove, and the fourth receiving groove, and A reflection module in which a virtual triangle formed by connecting the three contact points is asymmetric with respect to both a first line extended in a direction parallel to the first axis and a second line extended in a direction parallel to the second axis.
In paragraph 1, The reflection holder is a reflection module supported on the rotational carrier in a third axis direction perpendicular to both the first axis and the second axis perpendicular to the first axis.
In Paragraph 9, A first magnetic body disposed in the above-mentioned reflection holder; and A reflection module comprising: a first magnetic body and a second magnetic body disposed on the rotating carrier so as to face each other in the third axial direction.
In paragraph 1, The above-mentioned rotating carrier is rotatably disposed in the housing with respect to a second axis perpendicular to the first axis, and The reflection holder is a reflection module that rotates together with the rotation carrier about the second axis.
Housing; A rotating carrier disposed in the above housing; A reflective holder having a reflective member disposed thereon and supported rotatably on the rotating carrier with respect to a first axis; and A first ball member disposed between the rotation carrier and the reflection holder and forming the first axis; comprising A reflection module in which the first ball member forms three contact points with at least one of the rotating carrier and the reflection holder, and the three sides of a virtual triangle formed by connecting the three contact points all have lengths in a direction oblique to the direction parallel to the first axis.
In Paragraph 12, The first ball member comprises a main ball member forming three contact points with the reflection holder and the rotation carrier, respectively, and a sub ball member forming three contact points with either the reflection holder or the rotation carrier. A reflection module in which the main ball member and the sub ball member are spaced apart in a first axial direction.
In Paragraph 12, A reflection module in which the contact points formed by the first ball member with the reflection holder and the rotation carrier are provided at different positions in the second axial direction.
In Paragraph 12, The reflection holder is a reflection module supported in a third axis direction perpendicular to both the rotation carrier, the first axis, and the second axis, with the first ball member in between.
Reflection module according to claim 1; and A camera module comprising: a lens module comprising a plurality of lenses that refract light passing through the reflection module.

Description

Reflection module and Camera module including the same The present invention relates to a reflection module and a camera module including the same. Camera modules equipped in mobile devices are being manufactured to have performance comparable to conventional cameras. In particular, as the frequency with which users capture video using mobile devices increases, there is a growing demand for camera modules capable of providing high zoom magnification. To provide high zoom magnification, the Total Track Length (TTL) of the camera module must be sufficient. However, as mobile devices become increasingly miniaturized, there are spatial constraints on increasing the TTL of the camera module. Recently, a reflector capable of bending the light path has been placed in the camera module to extend the light path without significantly increasing the thickness of the camera module. Meanwhile, camera modules containing reflectors compensate for shake by driving the reflectors. However, due to the weight of the reflectors, there are various difficulties in achieving stable and precise operation. FIG. 1 is a perspective view of a camera module according to one embodiment of the present invention. FIG. 2 is an internal perspective view of a camera module according to one embodiment of the present invention. FIG. 3 is a schematic exploded perspective view of another camera module according to one embodiment of the present invention. FIG. 4 is a perspective view of a first lens module and a reflection module according to one embodiment of the present invention. FIGS. 5 and 6 are exploded perspective views of a first lens module and a reflection module according to an embodiment of the present invention. FIG. 7 is a cross-sectional view along I-I' of FIG. 4. Figure 8 is a cross-sectional view of II-II' of Figure 4. FIG. 9 is an enlarged view of one side of a reflective holder supported on a rotating carrier and receiving grooves according to one embodiment of the present invention. FIG. 10 is an enlarged view of one side of a rotating carrier and receiving grooves on which a reflective holder is supported according to one embodiment of the present invention. FIG. 11 is a drawing showing a main rotation guide according to one embodiment of the present invention, and FIG. 12 is a drawing showing a sub-rotation guide according to one embodiment of the present invention. FIGS. 13 and 14 are drawings showing receiving grooves of a reflective holder and a rotating carrier according to another embodiment of the present invention. FIGS. 15 and FIGS. 16 are exploded perspective views of a second lens module according to one embodiment of the present invention. Embodiments of the present invention will be described in detail below with reference to the attached drawings. However, the scope of the present invention is not limited to the embodiments presented. For example, a person skilled in the art who understands the concept of the present invention may propose other embodiments included within the scope of the concept of the present invention through the addition, modification, or deletion of components, and such embodiments shall also be deemed to be included within the scope of the concept of the present invention. Meanwhile, singular expressions used below include plural expressions unless the context clearly indicates a different meaning. Additionally, terms including ordinal numbers, such as "first," "second," etc., are used merely to distinguish between components, so each ordinal number may be used interchangeably within the claims. The present invention relates to a reflection module and a camera module including the same. The camera module according to the present invention can be applied to portable electronic devices such as smartphones and tablet PCs. FIG. 1 is a perspective view of a camera module according to one embodiment of the present invention, FIG. 2 is an internal perspective view of a camera module according to one embodiment of the present invention, and FIG. 3 is a schematic exploded perspective view of another camera module according to one embodiment of the present invention. Referring to FIG. 1, the camera module (100) may have a rectangular shape defined by length (Z direction), width (X direction), and height (Y direction). For example, the camera module (100) can be placed in the portable electronic device such that its height direction corresponds to the thickness direction of the portable electronic device. Therefore, the length of the camera module (100) may not affect the thickness of the portable electronic device. Referring to FIGS. 1 and FIGS. 2, the camera module (100) may have a structure in which light is incident in the height direction of the camera module (100) from one side in the longitudinal direction and an image is formed from the other side in the longitudinal direction. As described above, since the length of the camera module (100) does not affect the thickness of the portable electr