Optical imaging camera

Abstract

The invention discloses an optical imaging camera which comprises multiple lenses in sequence along an optical axis between an object side and an image side, wherein each lens has an object-side surface and an image-side surface. The lenses are provided with at least one variable gap, and the lens closest to the object side has positive refractive rate. The optical imaging camera satisfies Delta G / Gv<=0.1, wherein Delta G is the absolute value of the difference between a first value and a second value of the length of the variable gap on the optical axis when the camera is focused to objects which are infinitely far and 500mm far respectively, and Gv is the second value. The optical imaging camera of the invention is used for optical photography imaging. The lens length of the optical imaging camera is shortened effectively, the imaging quality is ensured, and the imaging resolution of distant or close photographing is strengthened. In addition, the design and processing difficulty of the optical imaging camera is low.

Description

technical field [0001] The present invention relates to an optical lens, and in particular to an optical imaging lens. Background technique [0002] The specifications of consumer electronic products are changing with each passing day (such as mobile phones, cameras, tablet computers, personal digital assistants, car photography devices, etc.), and the pace of pursuit of lightness and compactness has never slowed down. Therefore, the key components of electronic products such as optical lenses It must also be continuously improved to meet the needs of consumers. The most important characteristics of optical lenses are nothing more than image quality and volume. Among them, in terms of imaging quality, with the advancement of image sensing technology, consumers' requirements for imaging quality will also increase. Therefore, in the field of optical lens design, in addition to pursuing thinner lenses, lens imaging must also be considered. quality and performance. In order t...

AI Technical Summary

Problems solved by technology

[0003] However, optical lens design does not simply reduce the proportion of a lens with good imaging quality to produce an optical lens with both image quality and miniaturization. The design process not only involves material characteristics, but also production and assembly yields. practical problems

However, using a voice coil motor to adjust the position of the imaging plane to achieve autofocus results in an increase in the length of the lens during the operation of the voice coil motor

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