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Liquid film lens combination zoom optical system

A lens combination and optical system technology, applied in the field of zoom optical systems, to achieve the effects of reducing the difficulty of lens processing, increasing application flexibility, and increasing zoom capability

Active Publication Date: 2020-10-02
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the liquid film lens combination zoom optical system disclosed in the present invention is: by controlling the volume of a small amount of liquid injected into a single liquid film lens, using the effect of the surface tension of the liquid itself, to realize the bending deformation of the liquid film lens surface, and then Realize the zoom of a single liquid film lens; realize a wide range of combined zoom and aberration compensation through the combination of multiple liquid film lenses, and can realize the image plane position compensation after zooming of the liquid film lens combination zoom optical system

Method used

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  • Liquid film lens combination zoom optical system
  • Liquid film lens combination zoom optical system

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Embodiment 1

[0046] Such as figure 1 As shown, the liquid film lens disclosed in this embodiment is mainly composed of a front lens cavity 1 , a flat glass 2 and a rear lens cavity 3 . The inner diameter of the cavity of the liquid film lens is D=6mm, the thickness of the cavity is h=1mm, the liquid material is water, the material of the flat glass 2 is K9 glass, and the thickness of the flat glass is 0.15mm. The liquid is injected or extracted into the front lens cavity through the liquid channel, and the liquid surface in front of the lens is deformed by controlling the volume of the liquid in the front lens cavity and utilizing the surface tension of the liquid itself. The liquid is injected or extracted into the rear lens cavity through the liquid channel, and the liquid surface deformation behind the lens is realized by controlling the volume of the liquid in the rear lens cavity and utilizing the surface tension of the liquid itself. By controlling the deformation of the liquid surf...

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Abstract

The invention discloses a liquid membrane lens combined zoom optical system, and belongs to the technical field of the zoom optical system. The system is mainly formed by combining multiple liquid membrane lens, and further comprises a lens cone for fixing multiple liquid membrane lens, a liquid injection control system for controlling the liquid membrane lens liquid injection, and an imaging resolution analysis system. The amount and combined arrangement of the liquid membrane lens are determined according to the zoom range, the lens back focal length and an aberration compensation requirement, the liquid injection control system is used for controlling the surface deformation of each liquid membrane lens to realize single liquid membrane lens zoom, and the large-range zoom and aberrationcorrection can be realized through the zoom combination of multiple liquid membrane lens. The imaging of the liquid membrane lens combined zoom optical system is output to the imaging resolution analysis system, the imaging resolution analysis system is used for performing resolution analysis on an imaging result, the feedback control is performed on the liquid injection control system accordingto the resolution analysis result, thereby realizing the automatic zoom and aberration compensation of the liquid membrane lens combined zoom optical system.

Description

technical field [0001] The invention relates to a liquid film lens combination zoom optical system, which belongs to the technical field of zoom optical systems. Background technique [0002] Conventional zoom optical systems can be divided into two categories. One type is composed of solid lenses, and zooming and image plane compensation are realized by changing the relative positions of the solid lenses. Another kind is made up of solid lens and liquid lens, realizes zooming by changing the focal length of liquid lens. Because solid lenses and liquid lenses are limited by processing technology and zooming methods, on the one hand, solid lenses and liquid lenses must retain a certain thickness to meet processing and zooming requirements, resulting in lens volume and thickness that cannot be reduced; on the other hand, the two types of zooming Both methods require a complicated zoom control structure, resulting in increased volume and manufacturing cost of the zoom optical...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B3/14G02B26/00
CPCG02B3/14G02B26/004
Inventor 曹杰杨骜郝群张芳华唐鸣元
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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