A precision focusing device for optical components
An optical component and focusing technology, which is applied in the field of aerospace optical remote sensors, can solve the problems of large size, heavy load and focusing device weight, and poor mechanical resistance, so as to ensure parallelism, achieve installation coplanarity, and ensure The effect of transmission accuracy
Active Publication Date: 2022-07-29
BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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Problems solved by technology
However, the following problems generally exist in the current space camera focusing device: the focusing device and the load are designed and developed separately as two components, and the components pursue the local optimum of their respective performances, resulting in a large weight of the load and the focusing device as a whole , large size, poor mechanical resistance
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[0030] The present invention is described in further detail below in conjunction with the accompanying drawings and specific embodiments:
[0031] The present invention provides a precision focusing device for optical components, which simultaneously realizes optical component support and provides an interface with the focusing device based on a load supporting backplane. The method of integrated design and layout uses a ball screw pair to cooperate with a linear guide rail A method for realizing motion form conversion and high-precision transmission.
[0032] like figure 1 and figure 2 As shown in the figure, a precise focusing device for optical components provided by the present invention includes an external adapter plate of the focusing device, a first linear guide rail assembly, a second linear guide rail assembly, a load support back plate 12, a focus adjustment mechanism support 3, Ball screw assembly 15; eg image 3 As shown in the figure, the first linear guide r...
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The invention relates to a precise focusing device for optical components, which breaks the clear assembly interface between the traditional focusing device and the load. While the load supporting backplate provides highly stable support for the adjusted optical components, the interfaces distributed on it simultaneously It is connected with a high-precision focusing device. The focusing device and the adjusted optical components are designed and laid out around the load support backplane. The load support backplane is not only the support structure of the adjusted optical components, but also the common focus of the focusing device and the load. The interface, through integrated design and installation, not only ensures the high-precision surface accuracy of the mirror (the RMS effect of the mirror surface under the action of 1g gravity is less than 1 / 100), but also avoids the focusing device and load used in the prior art. Weight and size increase due to separate design and provision of separate mounting interfaces.
Description
technical field [0001] The invention belongs to the technical field of aerospace optical remote sensors, and relates to a light, small and large-load precision focusing device applied to a space camera. Background technique [0002] The mechanical vibration of the space camera during the launch process, as well as the changes in the temperature environment and the gravitational environment after entering the orbit, often cause the optical system to defocus and affect the imaging quality. On-orbit compensation by focusing device has become the most commonly used technical means. With the continuous improvement of the demand for the ground resolution of the space camera, the aperture of the space camera and the weight of each optical component inevitably increase gradually. Therefore, designing a focusing device that is light and small and has a large carrying capacity is of great significance for realizing the overall optimal design of the space camera. [0003] At present,...
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IPC IPC(8): G02B7/185G02B7/198
CPCG02B7/185G02B7/182
Inventor 武永见王长杰朱永红孙立宋志清杨居奎
Owner BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH