Unlock instant, AI-driven research and patent intelligence for your innovation.

A common-aperture visible light and near-infrared imaging optical system and its application

A technology of imaging optics and visible light, applied in the optical field, can solve the problems of large volume of optical system and low imaging quality, and achieve the effect of high spatial resolution, high resolution, light and miniaturized working temperature range

Active Publication Date: 2021-03-23
FOSHAN UNIVERSITY
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings and deficiencies in the prior art, and provide a common-aperture visible light and near-infrared imaging optical system and its application; the imaging optical system of the present invention realizes the common optical path design of visible light and near-infrared, and Visible light and near-infrared spectrum can be clearly imaged; at the same time, it can solve the problems of large volume and low imaging quality of discrete optical systems, and is conducive to the wide application and promotion of traditional Chinese medicine diagnosis and military optical guidance technology

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
  • A common-aperture visible light and near-infrared imaging optical system and its application
  • A common-aperture visible light and near-infrared imaging optical system and its application
  • A common-aperture visible light and near-infrared imaging optical system and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as Figure 1 to Figure 8 As shown, the imaging optical system of the present invention with a common aperture visible light and near-infrared comprises a dome D, a diaphragm S, a doublet lens C1, a double convex positive power lens L3, and a doublet lens in sequence from the object plane to the image plane Ima along the optical axis. Lens C2, meniscus-shaped negative power lens L6, biconvex positive power lens L7 and filter F, wherein doublet lens C1 is composed of double convex positive power lens L1 and double concave negative power lens L2 , The doublet lens C2 is composed of a biconcave negative power lens L4 and a meniscus negative power lens L5.

[0039] Specifically, the focal power φC1 of the doublet lens C1 and the focal power φ of the imaging optical system satisfy the following relationship:

[0040] -0.18≤φC1 / φ≤-0.08.

[0041] The focal power φL3 of the biconvex positive power lens L3 and the focal power φ of the imaging optical system satisfy the fol...

Embodiment 2

[0059] The application of the imaging optical system with a common aperture of visible light and near-infrared of the present invention in the field of traditional Chinese medicine diagnosis is: the imaging optical system is used as an optical imaging device of a face diagnosis instrument or a tongue diagnosis instrument to obtain human facial image information or tongue image characteristic information.

[0060] The present invention adopts an imaging optical system with a common aperture of visible light and near-infrared as the optical imaging device of the face-diagnosing device or the tongue-diagnosing device. The characteristics of clear imaging of all segments, combined with high-performance detectors, may be able to obtain multi-spectral optical images with pixel-level registration accuracy, which can improve the use of optical imaging by face diagnostic instruments or tongue diagnostic instruments to obtain human face or tongue. The accuracy of feature information.

Embodiment 3

[0062] The application of the imaging optical system with common aperture visible light and near-infrared in the field of military optical guidance technology of the present invention is: the imaging optical system is used as the seeker optical system, and the seeker optical system is arranged at the front end of the seeker to realize all-weather Time imaging guidance.

[0063] The imaging optical system of the present invention is used as the seeker optical system, which can make the seeker have the characteristics of high resolution, light and small size, and wide operating temperature range while having all-day optical imaging, which is beneficial to improve the optical guidance. The guidance performance of the seeker ensures clear imaging and tracking of military strike targets. The imaging optical system can work with a high-performance CMOS detector. Combined with the setting of the film layer on the filter F, the detection and imaging of visible light, near-infrared or ...

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

No PUM Login to View More

Abstract

The present invention provides an imaging optical system with a common aperture of visible light and near-infrared, which sequentially includes a fairing D, a diaphragm S, a doublet lens C1, a double convex positive power lens L3, and a doublet lens along the optical axis from the object plane to the image plane. Lens C2, meniscus-shaped negative power lens L6, biconvex positive power lens L7 and filter F; doublet lens C1 is composed of biconvex positive power lens L1 and double concave negative power lens L2; The cemented lens C2 is composed of a biconcave negative power lens L4 and a meniscus negative power lens L5. The invention also provides an application of a common-aperture visible light and near-infrared imaging optical system in the field of diagnosis of traditional Chinese medicine and the field of military optical guidance technology. The invention realizes the common light path design of visible light and near-infrared, and can clearly image in both spectral bands of visible light and near-infrared; meanwhile, it can solve the problems of large volume and low imaging quality of discrete optical systems, which is beneficial to the application in traditional Chinese medicine. It is widely used and promoted in diagnosis and military optical guidance technology.

Description

technical field [0001] The invention relates to the field of optical technology, more specifically, to a common-aperture visible light and near-infrared imaging optical system and its application. Background technique [0002] Although the existing imaging optical system has achieved good performance and a wide range of applications, such as security, surveillance, aerial photography and measurement. In the existing imaging optical system applications, most discrete optical systems are used. [0003] For example, in the intelligent diagnosis equipment of traditional Chinese medicine, the face diagnosis instrument or tongue diagnosis instrument adopts optical imaging method to obtain the facial image information or tongue image feature information of the human body, and provides digital and objective auxiliary information for the diagnosis of traditional Chinese medicine. It is the intelligent diagnosis and treatment equipment of modern Chinese medicine. An important way for...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B7/00G02B7/02
CPCG02B7/006G02B7/025G02B13/006G02B13/008
Inventor 伍雁雄项阳王丽萍谭海曙
Owner FOSHAN UNIVERSITY