US 11,960,142 B2
Prism module of camera lens
Gang Li, Shenzhen (CN); and Jin Zhang, Shenzhen (CN)
Assigned to AAC Optics Solutions Pte. Ltd., Singapore (SG)
Filed by AAC Optics Solutions Pte. Ltd., Singapore (SG)
Filed on Aug. 19, 2020, as Appl. No. 16/997,913.
Application 16/997,913 is a continuation of application No. PCT/CN2020/093454, filed on May 29, 2020.
Claims priority of application No. PCT/CN2019/089715 (WO), filed on Jun. 1, 2019; and application No. 201910479411.6 (CN), filed on Jun. 4, 2019.
Prior Publication US 2020/0379213 A1, Dec. 3, 2020
Int. Cl. G02B 7/18 (2021.01)
CPC G02B 7/1805 (2013.01) 9 Claims
OG exemplary drawing
 
1. A prism module of a camera lens, comprising:
a fixed holder;
a rotary holder rotatably mounted to the fixed holder;
a prism mounted to the rotary holder and rotatable with the rotary holder;
a rotation driver assembly provided between the fixed holder and the rotary holder and configured to drive the rotary holder to rotate relative to the fixed holder; and
a circuit board electrically connected to the rotation driver assembly,
wherein the rotary holder comprises a base for receiving and locating the prism, and a rotation connecting bracket provided at a side of the base facing towards the fixed holder and configured to support a rotation of the base; and the rotation driver assembly is made of a memory alloy in such a manner that the rotation driver assembly is deformed, under control of an electrical signal transmitted from the circuit board, to drive the base to rotate;
wherein the base comprises a base plate that carries the prism, and the base plate comprises two first side edges spaced apart from each other and two second side edges that are spaced apart from the opposite to each other and are perpendicularly connected to the two first side edges, respectively;
wherein the rotation connecting bracket comprises a first elastic support arm, a second elastic support arm, a third elastic support arm and a fourth elastic support arm, wherein each of the first elastic support arm, the second elastic support arm, the third elastic support arm, and the fourth elastic support arm has one end fixed to the fixed holder, another end of the first elastic support arm and another end of the second elastic support arm face towards the two second side edges of the base plate, respectively, in such a manner that the base plate is supported to drive the prism to rotate about the first rotation axis; and another end of the third elastic support arm and another end of the fourth elastic support arm face towards the two first side edges of the base plate, respectively, in such a manner that the base plate is supported to drive the prism to rotate about the second rotation axis.