Patent ID: 11882662
Assignee: SUTENG INNOVATION TECHNOLOGY CO., LTD.
Field: Optics (Instruments)
Classification: CPC G  H  Y | IPC G  H

Claim 0:
1. A receiving optical system, comprising: an optical receiving module, a first cylindrical lens, and a second cylindrical lens, wherein the optical receiving module is configured to receive a reflected laser and focus the received reflected laser, and wherein the first cylindrical lens is configured to receive the focused reflected laser and adjust the reflected laser in a first direction; wherein the second cylindrical lens is configured to receive the reflected laser adjusted by the first cylindrical lens, and readjust the reflected laser in a second direction; wherein the optical receiving module comprises: a first receiving lens and a second receiving lens, through the first receiving lens and the second receiving lens, a beam diameter of the reflected laser is gradually switched to a beam diameter matching a photosensitive surface of a receiving sensor; wherein the first receiving lens is configured to focus the received reflected laser, and switch the reflected laser from a first beam diameter to a second beam diameter, and wherein the second receiving lens is configured to receive the reflected laser switched to the second beam diameter, switch the reflected laser to a third beam diameter, and emit the reflected laser of the third beam diameter toward the first cylindrical lens; wherein the third beam diameter is greater than or approximately equal to the second beam diameter, and the second beam diameter is less than the first beam diameter.