KR-20260063085-A - CAMERA MODULE

Abstract

A camera module according to one embodiment comprises: a first lens module including at least one lens; a second lens module including at least one lens and spaced apart from the first lens module; a folded module that changes the path of at least one of a first incident light incident from the first lens module in a first direction and a second incident light incident from the second lens module in a first direction; and an image sensor that converts at least one of the first incident light and the second incident light whose path is changed by the folded module into an electrical signal. The folded module includes a first prism disposed below the first lens module and a second prism disposed below the second lens module and having a refractive index different from that of the first prism.

Inventors

• 엄재기
• 현해승

Assignees

• 삼성전기주식회사

Dates

Publication Date

20260507

Application Date

20241030

Claims (20)

1. A first lens module comprising at least one lens, A second lens module comprising at least one lens and spaced apart from the first lens module, A folded module that changes the path of at least one of a first incident light incident in a first direction from the first lens module and a second incident light incident in a first direction from the second lens module, and It includes an image sensor that converts at least one of the first incident light and the second incident light, whose path is changed by the folded module, into an electrical signal, The above-described folded module is a camera module comprising a first prism disposed below the first lens module and a second prism disposed below the second lens module and having a refractive index different from that of the first prism.
2. In paragraph 1, A camera module wherein the image sensor is positioned in close proximity to the lateral direction of the second prism, such that the light receiving surface is perpendicular to the direction of light incident from the folded module.
3. In paragraph 2, The first prism reflects the first incident light in a second direction, and A camera module in which the second prism transmits the first incident light reflected in the second direction and reflects the second incident light in the second direction.
4. In paragraph 2, A camera module in which the first prism has a lower refractive index than the second prism.
5. In paragraph 1, A camera module in which the first prism and the second prism are bonded with an optical adhesive.
6. In paragraph 5, The above optical adhesive is a camera module having a refractive index equal to or lower than that of the first prism.
7. In paragraph 1, A camera module further comprising a third lens module disposed between the second prism and the image sensor and having an optical axis perpendicular to the first lens module and the second lens module.
8. In paragraph 1, A camera module in which the image sensor is positioned below the second lens module with the folded module in between, such that the light receiving surface is perpendicular to the direction of light incident from the folded module.
9. In paragraph 8, The first prism reflects the first incident light in a second direction and transmits the second incident light, and A camera module in which the second prism reflects the first incident light reflected in the second direction in the first direction and transmits the second incident light.
10. In paragraph 8, A camera module in which the first prism has a higher refractive index than the second prism.
11. In paragraph 8, A camera module in which the first prism and the second prism are bonded with an optical adhesive, and the optical adhesive has a refractive index equal to or lower than that of the second prism.
12. In paragraph 1, A camera module in which the first prism includes a metal coating layer on a reflective surface where the first incident light is reflected.
13. In paragraph 1, The above-mentioned first lens module is a camera module having a higher magnification than the above-mentioned second lens module.
14. A first lens module comprising at least one lens, A second lens module comprising at least one lens and spaced apart from the first lens module, A folded module that changes the path of at least one of a first incident light incident in a first direction from the first lens module and a second incident light incident in a first direction from the second lens module, and It includes an image sensor that converts at least one of the first incident light and the second incident light, whose path is changed by the folded module, into an electrical signal, The above-described folded module comprises a first prism disposed below the first lens module and a second prism disposed below the second lens module spaced apart from the first prism, wherein an upper prism and a lower prism having different refractive indices are combined.
15. In Paragraph 14, The image sensor is positioned in close proximity to the lateral direction of the second prism, and The first prism reflects the first incident light in a second direction, and A camera module in which the second prism transmits the first incident light reflected in the second direction and reflects the second incident light in the second direction.
16. In paragraph 15, A camera module in which the upper prism has a higher refractive index than the lower prism.
17. In Paragraph 14, The image sensor is positioned below the second lens module with the folded module in between, and The first prism reflects the first incident light in a second direction, and A camera module in which the second prism reflects the first incident light reflected in the second direction in the first direction and transmits the second incident light.
18. In Paragraph 17, A camera module in which the upper prism has a lower refractive index than the lower prism.
19. In paragraph 15 or 17, A camera module further comprising a third lens module between the first prism and the second prism.
20. In paragraph 15, A camera module further comprising a third lens module between the second prism and the image sensor.

Description

Camera Module The present disclosure relates to a camera module. Driven by remarkable advancements in information and communication technology and semiconductor technology, the distribution and use of electronic devices are increasing rapidly. Recently, cameras are being incorporated into portable electronic devices, including smartphones, tablet PCs, and laptop computers. Smartphone cameras feature both front and rear cameras, and the rear cameras are equipped with various types, including wide-angle, ultra-wide-angle, high-magnification, and low-magnification telephoto cameras. As the number of cameras adopted in smartphones increases, the total mounting area of the cameras is growing; in particular, telephoto cameras occupy a significant portion of the total area due to their structural characteristics. Furthermore, driven by the recent trend toward high-performance cameras, the adoption of high-resolution image sensors is also increasing the surface area occupied by these sensors. For these reasons, a problem arises where there is insufficient mounting space for other components, such as batteries. Therefore, miniaturization technology is required to reduce the overall area of the camera while maintaining its existing functions. FIG. 1 is an external perspective view of a camera module according to one embodiment. FIG. 2 is an exploded perspective view showing the camera module shown in FIG. 1 disassembled. Figure 3 is a partial perspective view of the camera module shown in Figure 1. Fig. 4 is a front view of Fig. 3. Figure 5 is a partial cross-sectional view of the camera module shown in Figure 1. Figure 6 is a schematic diagram illustrating the optical path of the camera module shown in Figure 1. FIG. 7 is an exploded perspective view of a camera module according to another embodiment. Figure 8 is a schematic diagram illustrating the optical path of the camera module shown in Figure 7. FIG. 9 is a schematic diagram illustrating a camera module according to another embodiment. FIG. 10 is a schematic diagram illustrating a camera module according to another embodiment. FIG. 11 is a schematic diagram illustrating a camera module according to another embodiment. FIG. 12 is a schematic diagram illustrating a camera module according to another embodiment. Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings so that those skilled in the art can easily implement the invention. In order to clearly explain the invention in the drawings, parts unrelated to the explanation have been omitted, and the same reference numerals have been used for identical or similar components throughout the specification. Furthermore, in the attached drawings, some components may be exaggerated, omitted, or schematically depicted, and the size of each component does not entirely reflect its actual size. The attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification, and the technical concept disclosed in this specification is not limited by the attached drawings; it should be understood that all modifications, equivalents, and substitutions included within the concept and technical scope of the present invention are included. Terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but said components are not limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. Furthermore, when it is said that a part, such as a layer, membrane, region, or plate, is "on" or "on" another part, this includes not only the case where it is "directly above" the other part, but also the case where there is another part in between. Conversely, when it is said that a part is "directly above" another part, it means that there is no other part in between. Also, saying that a part is "on" or "on" a reference part means that it is located above or below the reference part, and does not necessarily mean that it is located "on" or "on" in the direction opposite to gravity. Throughout the specification, terms such as “comprising” or “having” are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. Accordingly, when a part is said to “comprising” a certain component, unless specifically stated otherwise, this means that it may include additional components rather than excluding other components. Additionally, throughout the specification, "planar" means when the subject part is viewed from above, and "cross-sectional" means when the cross-section obtained by vertically cutting the subject part is viewed from the side. Furthermore, throughout the specification, when the term "