Continuous scanning imaging optical system with large aperture and long focal length
A scanning imaging and optical system technology, applied in optics, optical components, instruments, etc., can solve problems such as modulation transfer function variation
Active Publication Date: 2015-12-09
哈尔滨工业大学高新技术开发总公司
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Therefore, the modulation transfer function of the scanning imaging optical system will deteriorate
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[0023] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings, but it is not limited thereto. Any modification or equivalent replacement of the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention should be covered by the present invention. within the scope of protection.
[0024] like figure 1 As shown, the large aperture and long focal length continuous scanning imaging optical system provided by the present invention includes the following parts: scanning mirror 1, primary mirror 2, secondary mirror 3, first plane mirror 4, three mirrors 5, second plane mirror 6 and image plane 7. The angle between the visible light radiated from the ground and the optical axis is 45 o The scanning mirror 1 collects and reflects to the surface of the primary mirror 2, the primary mirror 2 converges the light to the surface of the seco...
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The invention discloses a large-diameter long-focus continuous scanning imaging optical system, and belongs to the technical field of remote sensing optical system design and image quality analysis. The large-diameter long-focus continuous scanning imaging optical system comprises a scanning mirror (1), a primary mirror (2), a secondary mirror (3), a first plane mirror (4), a tertiary mirror (5), a second plane mirror (6) and an image surface (7), wherein visible light radiated by the ground is collected by the scanning mirror (1) and is reflected to the surface of the primary mirror (2), the light is converged by the primary mirror (2) to the surface of the secondary mirror (3), the light is slightly diverged by the secondary mirror (3), and then is projected to the surface of the first plane mirror (4), a light path is rotated by the first plane mirror (4) by 90 degrees, then the light is projected to the surface of the tertiary mirror (5), the light is converged by the tertiary mirror (5) to the surface of the second plane mirror (6), and the light is reflected by the secondary plane mirror (6) to the image surface (7) so that a CCD can receive the light. According to the large-diameter long-focus continuous scanning imaging optical system, the function of wide-range high-resolution imaging can be achieved on the geostationary orbit.
Description
technical field [0001] The invention belongs to the technical field of remote sensing optical system design and image quality analysis, and relates to a continuous scanning imaging optical system with large aperture and long focal length. Background technique [0002] In order to achieve high resolution, remote sensing systems operating in geostationary orbit are usually equipped with large-aperture optical systems. The remote sensing optical system on the geostationary orbit is relatively stationary to the observation point on the ground, so the observation range of the optical system is also fixed. Moreover, the field of view of the optical system with a 2m aperture is very small, so the observation range is also very small. [0003] Scanning imaging technology can enable high-resolution remote sensing optical systems in geostationary orbit to obtain a larger observation range. When the scanning mirror swings, the ground optical system can obtain a larger observation ran...
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IPC IPC(8): G02B26/10
Inventor 任智斌马驰金传广刘月
Owner 哈尔滨工业大学高新技术开发总公司