Large-diameter precise light beam pointing device

A beam pointing, large-aperture technology, applied in the direction of optics, optical components, instruments, etc., can solve the problems that are not suitable for large-format image stabilization applications, limited bandwidth, accuracy and reliability, and friction and lubrication of the bearing of the aperture precision pointing device. Solve problems such as high reliability, good electromagnetic compatibility and simple assembly

CN104777608AInactive Publication Date: 2015-07-15NAT UNIV OF DEFENSE TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2015-07-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a large-diameter precise light beam pointing device which comprises a base plate, a large-diameter reflecting mirror and a driving component, wherein the back side of the large-diameter reflecting mirror is supported on the base plate through a two-freedom-degree bearing; the driving component is mounted on the base plate; the driving end of the driving component is connected with the large-diameter reflecting mirror and can drive the large-diameter reflecting mirror to move in two free freedom degrees. Due to the adoption of the large-diameter precise light beam pointing device, the large-screen image stabilization application requirements can be met, the stabilization precision can be remarkably improved, and the processing and assembling process can be greatly simplified.
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Description

technical field

[0001] The invention mainly relates to the field of camera stabilizers, in particular to a large-diameter precision beam pointing device. Background technique

[0002] The camera stabilizer system is also called the photoelectric stabilized platform system. It uses the principle of inertial stabilization to isolate the disturbance of the camera's line of sight caused by the movement of the carrier, reduce imaging blur, and improve the imaging quality when shooting on a moving carrier. When it is necessary to perform high-definition video recording on a carrier with its own attitude movement, such as a moving vehicle, aircraft, or ship, if the camera is rigidly connected to the carrier, the attitude movement of the carrier will drive the camera to move together, resulting in continuous shaking of the camera's line of sight. Capture stable and clear images. In order to solve this problem, a camera stabilizer system is usually set up on the carrier, and the cam...

Examples

Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with specific embodiments and accompanying drawings.

[0026] Such as Figure 1 to Figure 6 As shown, the present invention provides a large-diameter precision beam pointing device, including a substrate 7, a large-diameter reflector 1 and a drive assembly, the back of the large-diameter reflector 1 is supported on the substrate 7 through a two-degree-of-freedom bearing 2, and the drive assembly On the base plate 7 , the driving end of the driving component is connected with the large-diameter reflector 1 and can drive the large-diameter reflector 1 to move in two degrees of freedom.

[0027] In this embodiment, the drive assembly includes four voice coil drive motors, and the four voice coil drive motors are evenly distributed around the two-degree-of-freedom bearing 2 and driven in series in pairs. During specific implementation, two voice coil drive motors driven in series are pushed and ...