US-12619048-B2 - Lens and lens module having the same

US12619048B2US 12619048 B2US12619048 B2US 12619048B2US-12619048-B2

Abstract

A lens module is provided. The lens module includes a first lens, a second lens, and a third lens sequentially disposed from an object side to an imaging side, a first spacing member disposed between the first lens and the second lens and having a first passage extending in a direction that intersects an optical axis, a second spacing member disposed between the second lens and the third lens and having a second passage extending in a direction that intersects the optical axis, and a lens barrel configured to accommodate the first lens, the second lens, the third lens, the first spacing member and the second spacing member, and configured to have a first connection passage disposed on an inner side surface and connected to the first passage and the second passage.

Inventors

Eun Chong LEE
Hwan Soo PARK
Kyu Min Chae
Hyuk Joo Kim

Assignees

SAMSUNG ELECTRO-MECHANICS CO., LTD.

Dates

Publication Date: 20260505
Application Date: 20230906
Priority Date: 20221027

Claims (10)

1 . A lens module, comprising: a first lens, a second lens, and a third lens sequentially disposed from an object side to an imaging side; a first spacing member, disposed between the first lens and the second lens, and having a first passage that extends in a direction that intersects an optical axis; a second spacing member, disposed between the second lens and the third lens, and having a second passage that extends in the direction that intersects the optical axis; and a lens barrel configured to accommodate the first lens, the second lens, the third lens, the first spacing member and the second spacing member, and configured to have a first connection passage disposed on an inner side surface and connected to the first passage and the second passage, wherein the first lens has protrusions disposed on a flange portion at a first interval (G) in a circumferential direction and configured to form a lens passage connecting an object-side space and/or an image-side space thereof and an outer space of the flange portion, and wherein 0.06<APsum/AL<0.1, where APsum is a sum of cross-sectional areas of the protrusions, and AL is a cross-sectional area of the first lens.
2 . The lens module of claim 1 , wherein the first passage is disposed at predetermined intervals in a circumferential direction of the first spacing member.
3 . The lens module of claim 1 , wherein a length of the first spacing member in the optical axis direction is less than a length of the second spacing member in the optical axis direction.
4 . The lens module of claim 1 , wherein a maximum distance from an image-side surface of the first lens to an object-side surface of the second lens is less than a maximum distance from an image-side surface of the second lens to an object-side surface of the third lens.
5 . The lens module of claim 1 , wherein an image-side surface of the first lens and an object-side surface of the second lens are respectively concave.
6 . The lens module of claim 1 , further comprising: a fourth lens disposed on an image side of the third lens; and a third spacing member disposed between the third lens and the fourth lens, and having a third passage that extends in a direction that intersects the optical axis.
7 . The lens module of claim 6 , wherein a maximum distance from an image-side surface of the first lens to an object-side surface of the second lens is less than a maximum distance from an image-side surface of the third lens to an object-side surface of the fourth lens.
8 . The lens module of claim 6 , wherein a second connection passage connecting the first passage and the third passage is provided on the inner side surface of the lens barrel.
9 . The lens module of claim 6 , wherein a third connection passage connecting the second passage and the third passage is provided on the inner side surface of the lens barrel.
10 . An electronic device, comprising the lens module of claim 1 .

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application claims the benefit under 35 USC § 119(a) of Korean Patent Application Nos. 10-2023-0054192 filed on Apr. 25, 2023, 10-2022-0144846 filed on Nov. 3, 2022, and. 10-2022-0140428 filed on Oct. 27, 2022 in the Korean Intellectual Property Office, the entire disclosures of which are incorporated herein by reference for all purposes. BACKGROUND 1. Field The following description relates to a lens and a lens module including the lens. 2. Description of Related Art Lenses are configured to converge incident light on a specific area or diverge the light to a wide area. A lens may have a predetermined thickness which enables the convergence or divergence of light. In an example, a lens (for example, a lens having positive refractive power) configured to converge light may have a thick center (optical axis area) of the lens, and a lens (for example, a lens having negative refractive power) configured to emit light may have a thick edge portion of the lens. Accordingly, heat transfer between a first side surface (e.g., an outer surface) and a second side surface (e.g., an inner surface) of the lens may be difficult due to the thickness of the lens. Additionally, since the edge of the lens is typically sealed to prevent unnecessary light from passing therethrough, thermal convection between a first side (e.g., outer surface) and a second side surface (e.g., inner surface) of the lens may not occur easily. However, since a first side (e.g., outer surface) of the lens may always be exposed externally, unlike a second side of the lens, condensation may likely occur on one surface of the lens due to a temperature differential between a first side and a second side of the lens. Additionally, dew condensation of the lens hinders the transmission of light, and thus the resolution of the lens and the lens module including the lens may be hindered. The above information is presented as background information only to assist with an understanding of the present disclosure. No determination has been made, and no assertion is made, as to whether any of the above might be applicable as prior art with regard to the disclosure. SUMMARY This Summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter. In a general aspect, a lens includes a lens unit having refractive power; a flange portion disposed at an edge of the lens unit; and protrusions disposed on the flange portion at a first interval (G) in a circumferential direction and configured to form a passage connecting an object-side space and/or an image-side space of the lens unit and an outer space of the flange portion, wherein the first interval (G) and a distance (Rmax) from a center of an optical axis of the lens unit to an outermost point of the flange portion satisfy a conditional expression 0.26<G/Rmax<0.5. 0.06<APsum/AL<0.1, where APsum is a sum of cross-sectional areas of the protrusions, and AL is a cross-sectional area of the lens unit. The lens unit may have a positive refractive power or a negative refractive power. At least one of an object-side surface and an image-side surface of the lens unit may be concave. The protrusions may be disposed at a higher level than the lens unit in an optical axis direction. A lens module may include the lens, and a lens barrel configured to accommodate the lens and having a groove disposed in an inner side surface of the lens barrel and connected to the passage. An electronic device may include the lens. In a general aspect, a lens module includes a first lens, a second lens, and a third lens sequentially disposed from an object side to an imaging side; a first spacing member, disposed between the first lens and the second lens, and having a first passage that extends in a direction that intersects an optical axis; a second spacing member, disposed between the second lens and the third lens, and having a second passage that extends in the direction that intersects the optical axis; and a lens barrel configured to accommodate the first lens, the second lens, the third lens, the first spacing member and the second spacing member, and configured to have a first connection passage disposed on an inner side surface and connected to the first passage and the second passage. The first passage may be disposed at predetermined intervals in a circumferential direction of the first spacing member. A length of the first spacing member in the optical axis direction may be less than a length of the second spacing member in the optical axis direction. A maximum distance from an image-side surface of the first lens to an object-side surface of the second lens may be less than a maximum distance from an image-side sur