US 12,470,796 B2
Camera module with annular light guide member and mobile terminal
Jiajun Liang, Guangdong (CN); Yi Wei, Guangdong (CN); Mozhou Lin, Guangdong (CN); Aixiang Yu, Guangdong (CN); Baicheng Zhang, Guangdong (CN); Jiyan Wu, Guangdong (CN); and Yong Qin, Guangdong (CN)
Assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong (CN)
Filed by GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong (CN)
Filed on Oct. 28, 2022, as Appl. No. 18/050,978.
Application 18/050,978 is a continuation of application No. PCT/CN2021/095245, filed on May 21, 2021.
Claims priority of application No. 202010456110.4 (CN), filed on May 26, 2020; application No. 202020905913.9 (CN), filed on May 26, 2020; application No. 202110260231.6 (CN), filed on Mar. 10, 2021; and application No. 202110261137.2 (CN), filed on Mar. 10, 2021.
Prior Publication US 2023/0075148 A1, Mar. 9, 2023
Int. Cl. H04N 23/56 (2023.01); H04M 1/02 (2006.01); H04N 23/51 (2023.01); H04N 23/55 (2023.01)
CPC H04N 23/56 (2023.01) [H04M 1/0264 (2013.01); H04N 23/51 (2023.01); H04N 23/55 (2023.01)] 17 Claims
OG exemplary drawing
 
1. A camera module, comprising:
a lens assembly;
a light guide member, being of an annular structure as a whole, wherein the light guide member is sleeved on an outer peripheral side of the lens assembly; and
a light source, wherein light emitted by the light source is incident in the light guide member from an outer peripheral side of the light guide member and is emitted out through a light emitting surface of the light guide member, and the light emitting surface faces toward an object side of the lens assembly;
wherein the light guide member comprises a light guide body and a light incident part, the light guide body is sleeved on the outer peripheral side of the lens assembly, the light incident part is disposed on an outer peripheral side of the light guide body or on an image side of the light guide body, the light incident part is provided with a light incident surface for the light emitted by the light source to enter, and the light emitting surface is disposed on the light guide body;
wherein a surface of the light guide member facing toward the image side is provided with a scattering structure; the light emitted by the light source is scattered by the scattering structure and then emitted from the light emitting surface to a camera area of the lens assembly; an orthographic projection of the light emitting surface in a direction of an optical axis of the lens assembly is located in an area where the scattering structure is located;
wherein when the light incident part is disposed on the outer peripheral side of the light guide member, the scattering structure is disposed on the light guide member; the light guide body is further provided with at least one isolation groove disposed between the scattering structure and the light incident part, and
wherein the at least one isolation groove extends in an arc along a peripheral direction of the light guide member.