Two-color optical system with ultra-large vision field and large aperture
An optical system and large aperture technology, applied in the field of focal plane imaging or energy detection, to achieve the effect of large relative aperture, simple structure, and avoid energy blocking loss
Inactive Publication Date: 2010-04-14
BEIJING INSTITUTE OF TECHNOLOGYGY
View PDF0 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] The purpose of the present invention is to solve the problems of reducing the volume and weight of the system and reducing the difficulty of obtaining and processing optical elements under the condition of obtaining a large field of view, and propose a two-color optical system with a super large field of view and a large aperture
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0027] The present invention will be further described below in conjunction with drawings and embodiments.
[0028] Example figure 2 As shown, the present invention will be mainly applied to the light mixing optical system containing ultraviolet and infrared focal plane photoelectric array detectors as imaging receivers, no matter in aerospace, aviation and ground reconnaissance, in target tracking detection, conventional lens can be obtained The incomparable wide-spectrum high-definition photos and more target spectrum information can be widely used in national defense, military industry, civil cable testing, etc., so it has attracted the attention of many departments. The present invention has been supported by the Air Force's pre-research and aviation funds during the research and development process.
[0029] Such as figure 2 As shown, the present invention is a kind of ultra-large field of view, large aperture two-color optical system, comprising a single negative asp...
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 belongs to the technical field of optical instruments, and relates to a two-color optical system with ultra-large vision field and large aperture which comprises a single negative reflector, a signal positive reflector, a single positive reflector, an aperture grating, a negative lens containing aspheric surface, a single positive lens, protective window glass, a beam splitter mirror and a detector image plane. The two-color optical system has the maximum vision field of 130 degrees, has large relative aperture and minimum number F of 1.5, and adopts an off-axis structure for avoiding energy sheltering loss and being beneficial for energy detection. The former three reflectors of the system are all aspheric surfaces, which can be directly machined by a diamond lathe. The aspheric surfaces all adopt optical glass material which is easy to machine for checking image difference. The two-color optical system has excellent image forming quality and simple structure, can better suppress stray lights, can be applied in the fields of aviation, the reconnaissance and observation of infrared, ultraviolet double-spectral coverage and large vision field on the ground after being split by the beam splitter mirror, and can also be applied to optical detection instruments additionally.
Description
technical field [0001] The invention belongs to the technical field of optical instruments, and relates to an optical system with a large field of view and a large aperture mixed with infrared and ultraviolet bispectral bands, which is especially suitable for focal plane imaging or energy detection of special bispectral bands. Background technique [0002] At present, the mixed light optical system with large field of view, large aperture and high transfer function value (MTF) using ultraviolet and infrared focal plane photoelectric array detectors as imaging receivers, whether in aerospace, aviation and ground reconnaissance, target tracking and detection Among them, they can obtain wide-spectrum high-definition photos and more target spectrum information that cannot be compared with conventional lenses, and can be widely used in the fields of national defense and military industry, so they are favored by national defense and military departments. [0003] The camera optica...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B27/00
Inventor 常军刘健
Owner BEIJING INSTITUTE OF TECHNOLOGYGY