Optical imaging method and system for large-scale high-resolution remote sensing camera
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
An optical imaging system and high-resolution technology, applied in the field of optical imaging systems, can solve the problems that it is difficult to meet the requirements of large field of view and high resolution at the same time, achieve high resolution and reduce spherical aberration
Inactive Publication Date: 2014-04-02
苏州信沃特光电科技有限公司
View PDF5 Cites 17 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
Therefore, it is difficult to meet the requirements of large field of view and high resolution for modern remote sensor imaging systems at the same time using traditional design methods
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0030] The technical solution of this embodiment is to provide a multi-scale, large field of view, and high-resolution optical imaging system for large-scale high-resolution remote sensing cameras. / #=4.0, the full field of view is 120 degrees.
[0031] See attached figure 1 , which is a schematic diagram of the working principle of the multi-scale optical system for large-scale high-resolution remote sensing cameras provided by the present invention; The reflected light of sunlight, after passing through the multi-scale optical system, forms an optical image on the photosensitive surface of each channel detector, and outputs the captured target image after being collected by electronic circuits and image processing, so as to obtain the height of the target scene in a large range of ground objects. resolution image.
[0032] See attached figure 2 , which is a structural schematic diagram of the optical imaging system for large-scale high-resolution remote sensing cameras p...
Embodiment 2
[0042] In this embodiment, the working wavelength range is 0.72 μm to 1.0 μm, the system F number is F / #=4.0, and the full field of view is 120 degrees. For the structure of the optical system and the imaging optical path, please refer to the attached figure 2 And attached image 3 .
[0043] The remaining parameters of the optical imaging system are as follows: the focal lengths of the front objective lens and the microlens single-channel optical imaging system are 70mm and 20mm respectively, along the light direction, the meniscus spherical negative lens 11, the plano-convex spherical positive lens 12, and the plano-convex spherical positive lens 13. The radius of curvature of meniscus spherical negative lens 14, intermediate image surface 15, spherical negative lens 21, spherical positive lens 22, spherical positive lens 23, and spherical negative lens 24 are respectively 31.12mm, 18.43mm, Infinity, -19.13 mm, -35.55mm, -72.01mm, 12.99mm, 5.87mm, -53.36mm, 391.52mm, -3.08...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention relates to an optical imaging method and an optical imaging system for a large-scale high-resolution remote sensing camera. A micro lens array is arranged between a front object lens and a focal plane of a detector. The front object lens adopts a concentric and symmetrical spherical lens structure to obtain a large-field scene. Each passage of the micro lens array consists of a group of separated doublet lenses. The separated doublet lenses are used for realizing fine aberration correction within a small field range of the passages undertaken by the separated doublet lenses to form a plurality of independent imaging passages, so as to image all information in the entire field onto the focal plane of the detector without any loss and obtain high-resolution images with diffraction limit performance at all positions in the large field. The optical imaging system for the large-scale high-resolution remote sensing camera has the characteristics that since an pure transmission-type optical structure is adopted, the structure is simple and compact, the system is suitable for the entire visible light working wavelength range, the view field is large, the image quality of the entire view field is uniform, the imaging performance is excellent, the cost is low and the like. The space resolution of the multi-scale optical imaging system provided by the invention is not limited by the view field and the multi-scale optical imaging system is suitable for remote sensing cameras for earth observation and general survey.
Description
technical field [0001] The invention relates to an optical imaging system for a large-scale high-resolution remote sensing camera, in particular to a multi-scale structure, refraction type, working in the entire visible light band, large field of view, and high-resolution optical imaging methods and systems. Background technique [0002] With the continuous development of space exploration and earth observation, the field of view and resolution requirements of imaging systems are getting higher and higher. In order to achieve real-time acquisition of high-resolution optical images within a large field of view, large-scale high-resolution cameras have always been the difficulty and focus of research. [0003] With traditional imaging methods and systems, large field of view and high resolution are mutually restricted. When the working wavelength is fixed, the only way to improve the resolution of the system is to increase the system aperture. However, the large field of vie...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more