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A zoom fisheye lens system and design method

A fisheye lens and lens technology, applied in the field of applied optics, can solve the problems of volume, weight and power consumption

Active Publication Date: 2021-09-14
SHANGHAI DIANJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Another disadvantage of this technology is that it brings difficulties in terms of volume, weight, power consumption, etc.

Method used

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  • A zoom fisheye lens system and design method
  • A zoom fisheye lens system and design method
  • A zoom fisheye lens system and design method

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Embodiment Construction

[0033] Next, the technical solutions in the embodiments of the present invention will be described in contemplation in the embodiments of the present invention, which will be described, and it is understood that the described embodiments are intended to be in an embodiment of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained without making creative labor without making creative labor, and should belong to the scope of the present invention.

[0034] Basic technical principle of the invention:

[0035] Fisheye lens system is typically a compression-type front group having negative meniscus lens angle of view and a rear group composed of the objective optical system in a conventional fisheye lens to achieve substantially imaged field of view and a high relative aperture, must be large extremely inclined relative transmission beam cross section. Fisheye lens focusing the design process, a first lens op...

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Abstract

The invention relates to a zoom fisheye lens system and a design method, wherein the lens system is provided with a front lens group and a rear lens group respectively having negative and positive refractive powers along the optical axis from the object end to the imaging end. The design method is as follows: 1: Determine the relevant parameters of each negative meniscus lens according to the preliminary design of the front lens group; Step 2: Design and select the rear lens group according to the spatial angle of view and aberration distribution of the optical system of the front lens group Step 3: Preliminarily design the total optical path of the system; Step 4: Divide the initial structure of the fisheye lens into the components of the front group and the rear group, and use related software The initial structure is further optimized and designed, and finally a zoom fisheye lens system with a field of view angle ranging from 180° to 90° and a corresponding system focal length ranging from 8mm to 16mm is obtained. Compared with the prior art, the present invention has the advantages of wide focal length range and many application fields.

Description

Technical field [0001] The present invention relates to the use of optical technology, particularly, to a fisheye lens zoom system and design method. Background technique [0002] In the case of small viewing angle optical system gaze case, the electromechanical structure and a servo control so that the optical axis within a certain range to make the two-dimensional scanning by rotation of a certain law, in order to increase the spatial angle information perception. This is the largest expansion method using the perspective of the project. [0003] In order to ensure real-time access to information, multi-shot stitching is made to expand the field of view of another practical technical information perception angle airspace, but also the most commonly used method. The technique using a large field, high resolution imaging sensor staring, advanced electronic circuit components and signal processing techniques, and its advantage is a perspective covered airspace ensuring real-time a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B15/177G02B27/00
CPCG02B15/177G02B27/0012
Inventor 侯国柱
Owner SHANGHAI DIANJI UNIV
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