Liquid lens optical system and camera lens

Abstract

The present invention provides a liquid lens optical system, comprising a plurality of lens groups, the plurality of lens groups including a first lens group, a second lens group, a liquid lens, a first lens group, a second lens group, a liquid lens, a Three lens groups and a fourth lens group, each of which includes at least one lens; the liquid lens optical system satisfies the following conditions: |Y n+1 ‑Y n |<1mm; where, Y n+1 ‑Y n Represents the difference between the maximum heights of the light passing through two adjacent lens surfaces; the liquid lens optical system further includes a diaphragm, the diaphragm is provided with a light hole for the light to pass through, and the light passing on the diaphragm The hole is located between the second lens group and the liquid lens; the liquid lens optical system also satisfies the following conditions: |Z S -Z L |≥0.9mm. The invention also provides a camera lens.

Description

technical field [0001] The invention relates to the technical field of lenses, in particular to a liquid lens optical system and a camera lens. Background technique [0002] The lens can clearly capture images of different working distances by focusing. The focusing method of traditional zoom lenses (such as endoscope lenses) is based on mechanical movements, such as manually adjusting the knob (which can also be driven by a motor), Thereby, the lens or lens group in the lens is driven to move laterally along the optical axis, and by changing the optical interval between the lenses or between the lens and the camera chip, the shift of the imaging focus of the lens caused by the change of the working distance is compensated. [0003] The above-mentioned traditional focusing method requires more time to control the lens or lens group to move laterally along the optical axis, so the focusing speed is slow; Manually adjusting the knob to focus makes the operation inconvenient, ...

AI Technical Summary

Problems solved by technology

[0003] The traditional focusing method mentioned above needs more time to control the lens or lens group to move laterally along the optical axis, so the focusing speed is slow; moreover, in some application scenarios (such as doctors using endoscopes for surgery), due to the need to Manually adjust the knob to focus, which makes the operation inconvenient and affects the user experience

At the same time, some existing zoom lenses still have problems such as narrow working distance range and insufficient focus clarity.

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