A visible light imaging spectrometer telephoto lens

A technology for imaging spectrometers and telescopic heads, which is applied in the directions of instruments, optics, optical components, etc., can solve the problems of difficulty in the design of telescopic heads, and achieve the effect of simplifying the structure of the optical path.

Active Publication Date: 2022-07-05
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Abstract
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  • Claims
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Problems solved by technology

Therefore, the design of the telescopic head of the UAV-borne imaging spectrometer has certain technical difficulties

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  • A visible light imaging spectrometer telephoto lens
  • A visible light imaging spectrometer telephoto lens
  • A visible light imaging spectrometer telephoto lens

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Embodiment Construction

[0021] In order to make those skilled in the art better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be cleared and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only Embodiments are part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0022] see figure 1 , is the optical path structure diagram of the present invention, the visible light imaging spectrometer telescopic head includes 5 lenses, and the 5 lenses are arranged in the form of positive, negative, positive, negative, and positive. The lens has the advantages of miniaturization and light weight, while improving the imagin...

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Abstract

The invention provides a visible light imaging spectrometer telephoto lens. The lens includes 5 optical lenses, which are respectively positive, negative, positive, negative, and positive along the direction of incident light. The focal length of the lens is 11mm, and the F number is 1.8. Visible light band, the wavelength range is 400nm~700nm, the field of view is 18°, and the total optical length of the system is 16.8mm; the visible light lens is designed as an image-side telecentric optical path structure, and can be used as a visible light imaging spectrometer. Use; aspheric technology is used in the design process of the lens, two of the 5 lenses are aspherical lenses, and all aberrations are corrected in the optimization process, so that the lens has excellent image quality, large relative aperture, miniaturization and Lightweight and other advantages.

Description

technical field [0001] The invention relates to the technical field of optical design, in particular to a visible light imaging spectrometer telescopic head. Background technique [0002] As a widely used spectral instrument, visible light imaging spectrometer has important applications in agriculture and forestry, geological survey, hydrological monitoring, disaster investigation and so on. In recent years, with the continuous maturity of UAV technology, the rapid development of airborne equipment has been promoted. Volume and weight are important metrics for airborne visible light imaging spectrometers. For longer battery life, miniaturization and light weight are required for airborne imaging spectrometers. The imaging spectrometer mainly includes two parts: a telescopic head and a spectroscopic system. The main function of the telescopic head is to image the target. The spectroscopic system mainly separates the slit images of different wavelengths. It can be seen that t...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/02G02B13/22G02B13/18G02B1/00
CPCG02B13/02G02B13/22G02B13/18G02B1/00
Inventor 陈建军
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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