Jul 1, 2025

US12345503 - Automatic light-adjusting structure for red dot sight

An automatic light-adjusting structure for a red dot sight includes a sight body, a lens frame disposed at the upper part of the sight body, a reflecting lens, a light sensor and a processing unit. The reflecting lens is configured for transmitting target light rays to a receiving end of the light sensor, and the light sensor is configured for detecting the brightness of the target light rays and transmitting brightness data to the processing unit; the processing unit is configured for analyzing the brightness data and adjusting the brightness of a light source in the sight body according to an analysis result. The brightness of the light source (LED) is adjusted according to the brightness of the target light rays, thus achieving the purpose of self-adaptive adjustment, and the optimal visual experience is provided.

Assignee: Syswit Optoelectronics Technology Co., Ltd.
Inventors: Wenjie Li, Xi Wang
Filing date: 2023-12-06

The patent describes an automatic light-adjusting structure for a red dot sight that utilizes a light sensor and processing unit to adaptively adjust the brightness of an LED light source based on detected target light brightness. This innovation aims to enhance the user’s visual experience by ensuring optimal visibility in varying lighting conditions.

Claim 1

An automatic light-adjusting structure for a red dot sight, comprising a sight body, a lens frame disposed at an upper part of the sight body, a reflecting lens, a light sensor and a processing unit; wherein the reflecting lens is disposed in the lens frame; the light sensor is disposed at a bottom of an inner side of the lens frame, and located in the area, attaching to the lens frame, of the reflecting lens; the reflecting lens is configured for transmitting target light rays to a receiving end of the light sensor, and the light sensor is configured for detecting the brightness of the target light rays and transmitting brightness data to the processing unit; and the processing unit is configured for analyzing the brightness data and adjusting the brightness of a light source in the sight body according to an analysis result. the reflecting lens is disposed in the lens frame; the light sensor is disposed at a bottom of an inner side of the lens frame, and located in the area, attaching to the lens frame, of the reflecting lens; the reflecting lens is configured for transmitting target light rays to a receiving end of the light sensor, and the light sensor is configured for detecting the brightness of the target light rays and transmitting brightness data to the processing unit; and the processing unit is configured for analyzing the brightness data and adjusting the brightness of a light source in the sight body according to an analysis result.

Google Patents

https://patents.google.com/patent/US12345503

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12345503