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CN-121977388-A - Double-light sighting telescope and focusing control method thereof

CN121977388ACN 121977388 ACN121977388 ACN 121977388ACN-121977388-A

Abstract

The application discloses a double-light sighting telescope and a focusing control method of the double-light sighting telescope, wherein the double-light sighting telescope comprises a telescope tube, an objective lens assembly, a focusing assembly and a synchronous adjusting assembly, the focusing assembly comprises a focusing wheel set and a translation piece, the focusing wheel set is rotatably connected to the telescope tube, the translation piece is movably arranged in the telescope tube back and forth, the objective lens assembly comprises a white light imaging module and an infrared imaging module, a white light imaging sensor is fixedly connected to the front end of the translation piece, the synchronous adjusting assembly further comprises a control assembly, a position sensor and a driving assembly, the infrared imaging sensor is fixedly connected to the output end of the driving assembly, the position sensor is arranged corresponding to the translation piece and used for detecting the moving position of the translation piece, and the control assembly is used for receiving a position signal of the position sensor and controlling the driving assembly to drive the infrared imaging sensor to move back and forth. The dual-light sighting telescope can realize synchronous focusing of the white light imaging lens group and the infrared imaging lens group.

Inventors

  • WANG ZHIKE

Assignees

  • 深圳市普雷德科技有限公司

Dates

Publication Date
20260505
Application Date
20260206

Claims (10)

  1. 1. The double-light sighting telescope is characterized by comprising a telescope tube, an objective lens assembly, a focusing assembly and a synchronous adjusting assembly, wherein the objective lens assembly is arranged at the front end of the telescope tube; The focusing assembly comprises a focusing wheel set and a translation part, the focusing wheel set is rotatably connected with the mirror tube, the translation part is movably arranged in the mirror tube back and forth, and the focusing wheel set is matched with the translation part so as to drive the translation part to move back and forth when the focusing wheel set rotates; The objective lens assembly comprises a white light imaging module and an infrared imaging module, wherein the white light imaging module comprises a white light imaging lens group and a white light imaging sensor, and the infrared imaging module comprises an infrared imaging lens group and an infrared imaging sensor, wherein the white light imaging sensor is fixedly connected to the front end of the translation piece and is arranged corresponding to the white light imaging lens group; the synchronous regulation assembly further comprises a control assembly, a position sensor and a driving assembly; the infrared imaging sensor is arranged corresponding to the infrared imaging lens group and is fixedly connected to the output end of the driving assembly; The control component is used for receiving the position signal of the position sensor and controlling the driving component to drive the infrared imaging sensor to move back and forth so as to realize synchronous focusing of the white light imaging lens group and the infrared imaging lens group.
  2. 2. The dual-light telescope as recited in claim 1, further comprising a mount mounted in the telescope tube, wherein the position sensor is a hall sensor comprising a magnet and a hall element, wherein the magnet is fixedly mounted at the front end of the translating member, the hall element and the driving assembly are both mounted to the mount, and the hall element is disposed in correspondence to the magnet.
  3. 3. The dual light telescope of claim 2, wherein the driving assembly comprises a motor and a transmission mechanism, the transmission mechanism is in transmission connection with the infrared imaging sensor, and a driving shaft of the motor is connected with the transmission mechanism to drive the infrared imaging sensor to move back and forth.
  4. 4. The dual light telescope of claim 3, further comprising a connection bracket, wherein the infrared imaging sensor is fixedly connected to the connection bracket, wherein the transmission mechanism comprises a screw rod, wherein the connection bracket has a nut portion, and wherein the screw rod is in threaded engagement with the nut portion.
  5. 5. The dual light telescope of claim 4, wherein the drive assembly further comprises a spring disposed in a front-to-rear direction, and wherein one end of the spring is connected to the connection frame and the other end is connected to the transmission mechanism.
  6. 6. The dual-light telescope as recited in claim 3, wherein the control assembly comprises a main control board, a hard circuit board and a flexible circuit board, the main control board is arranged at the rear end of the telescope tube, the motor, the infrared imaging sensor and the hall element are all electrically connected with the hard circuit board, and the hard circuit board and the white light imaging sensor are all electrically connected with the main control board through the flexible circuit board.
  7. 7. The dual-light telescope according to any one of claims 2 to 6, further comprising a mounting frame fixedly mounted in a front end inner cavity of the lens tube, wherein the white light imaging lens group and the infrared imaging lens group are arranged on the mounting frame along a radial direction of the lens tube, a front end face of the mounting frame is provided with a white light lens window corresponding to the white light imaging lens group, and a front end face of the mounting frame is provided with an infrared lens window corresponding to the infrared imaging lens group.
  8. 8. The dual light telescope of claim 7, wherein the translating member comprises an inner barrel and a transition frame removably coupled to a front end of the inner barrel, the white light imaging sensor is fixedly coupled to the transition frame, and the magnet is fixedly mounted to the transition frame.
  9. 9. A focus control method of a double-light telescope, applied to the double-light telescope according to any one of claims 1 to 8, characterized in that the focus control method of the double-light telescope comprises the steps of: detecting the displacement and the moving direction of the translation part through a position sensor, and generating a position signal; receiving the position signal and generating the displacement and the movement direction required by the infrared sensor; generating motor operation parameters according to the displacement amount and the movement direction required by the infrared imaging sensor; and operating according to the motor operation parameters by the control motor so as to drive the infrared imaging sensor to synchronously move.
  10. 10. The method for controlling focusing of a dual-beam telescope as recited in claim 9, wherein the step of receiving the position signal and generating the required displacement and moving direction of the infrared sensor comprises the steps of: generating a displacement amount and a movement direction required by the infrared sensor according to the position signal and the stroke ratio between the translation piece and the infrared imaging sensor; the motor operation parameters include a rotation direction, a rotation time or a rotation number or a rotation speed or a rotation angle or an output torque.

Description

Double-light sighting telescope and focusing control method thereof Technical Field The application relates to the technical field of sighting telescope, in particular to a double-light sighting telescope and a focusing control method of the double-light sighting telescope. Background In the photoelectric aiming field, the infrared thermal imaging and visible light imaging combined type light aiming plays a vital role in a plurality of fields by virtue of the strong function integration advantage. The infrared imaging technology can generate images by detecting thermal radiation of a target object or enhancing weak ambient light (such as starlight and moon light) and imaging by using active infrared light supplement under night or low illumination environment, so that a user is free from the limitation of light conditions and can clearly observe the target, and the visible light imaging function can provide high-resolution and true-color visual images under normal illumination conditions, so that the requirement of the user on the detailed observation of the target is met. The mode of combining the two imaging technologies greatly expands the application field and the application range of the light aiming product. However, in the existing similar composite functional light aiming products in the market, the focal length adjustment of infrared imaging and visible light imaging are mutually independent, and a user needs to respectively adjust the focal length according to different imaging modes in the using process. When a user switches an imaging mode or observes a target, focal length adjustment needs to be completed twice successively, so that operation steps and complexity are increased, aiming response time is prolonged, and learning cost is also improved. In a scene with higher requirements on operation convenience and response speed, tedious operation is easy to scatter attention, causes focusing deviation and influences the using effect. Meanwhile, the independent focal length adjusting structure can increase the complexity of the inside of the product, occupy more installation space, restrict miniaturization and light weight development of the light sighting device, and contradict the industry portability trend. In addition, the two sets of mechanisms have poor cooperative stability, precision drift is easy to occur after long-term use, manufacturing and maintenance cost is increased, synchronous and accurate focusing is difficult to realize, image fusion effect is influenced, and the cooperative advantages of composite imaging cannot be fully exerted. The foregoing is merely provided to facilitate an understanding of the principles of the invention and is not admitted to be prior art. Disclosure of Invention In view of the above problems, the invention provides a dual-light sighting telescope, which aims to solve the technical problems of complicated operation steps and high adjustment difficulty caused by independent focal length adjustment of infrared imaging and white light imaging. In order to achieve the aim, the double-light sighting telescope provided by the invention comprises a telescope tube, an objective lens component, a focusing component and a synchronous adjusting component, wherein the objective lens component is arranged at the front end of the telescope tube; The focusing assembly comprises a focusing wheel set and a translation part, the focusing wheel set is rotatably connected with the mirror tube, the translation part is movably arranged in the mirror tube back and forth, and the focusing wheel set is matched with the translation part so as to drive the translation part to move back and forth when the focusing wheel set rotates; The objective lens assembly comprises a white light imaging module and an infrared imaging module, wherein the white light imaging module comprises a white light imaging lens group and a white light imaging sensor, and the infrared imaging module comprises an infrared imaging lens group and an infrared imaging sensor, wherein the white light imaging sensor is fixedly connected to the front end of the translation piece and is arranged corresponding to the white light imaging lens group; the synchronous regulation assembly further comprises a control assembly, a position sensor and a driving assembly; the infrared imaging sensor is arranged corresponding to the infrared imaging lens group and is fixedly connected to the output end of the driving assembly; The control component is used for receiving the position signal of the position sensor and controlling the driving component to drive the infrared imaging sensor to move back and forth so as to realize synchronous focusing of the white light imaging lens group and the infrared imaging lens group. In an embodiment, the dual-light sighting telescope further comprises a fixing frame arranged in the telescope tube, the position sensor is a Hall sensor, the Hall sensor comprises a magnet and a Hall element,