Image pick-up device and optical imaging lens thereof

Abstract

The invention relates to the image pick-up device and an optical imaging lens thereof. The optical imaging lens comprises six lenses; the objective side of the first lens is provided with a convex surface part located in an area adjacent to the optical axis; the objective side of the second lens is provided with a convex surface part located in an area adjacent to the optical axis; the image side of the fourth lens is provided with a convex surface part located in an area adjacent to the circumference; the objective side of the fifth lens is provided with a convex surface part located in an area adjacent to the circumference; the objective side of the sixth lens is provided with a concave surface part located in an area adjacent to the optical axis; the optical imaging lens only comprises the six lenses having the refractive index. The electronic image pick-up device comprises a case, an image module comprising the optical imaging lens, a lens cone, a module backseat unit and an image sensor. The image pick-up device and the optical imaging lens have the advantages that the concave and convex curved surfaces of the lenses are controlled to be well arranged to maintain excellent optical properties, and the length of the lens is effectively reduced.

Description

technical field [0001] The present invention relates to an imaging electronic device and its optical imaging lens, and in particular to an imaging electronic device using a six-lens lens and its optical imaging lens. Background technique [0002] In recent years, the popularization of mobile phones and digital cameras has led to the vigorous development of photographic modules including optical imaging lenses, lens barrels, and image sensors. The thinner and lighter mobile phones and digital cameras have also increased the demand for miniaturization of photographic modules. With the technological progress and size reduction of Charge Coupled Device (CCD) or Complementary Metal-Oxide Semiconductor (CMOS), the optical imaging lens installed in the camera module also needs to be reduced in size. However, the good optical performance of the optical imaging lens is also necessary to take into account. [0003] With consumers' demand for imaging quality, the traditional four-piec...

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Problems solved by technology

[0004] In U.S. Patent No. 7663814, the optical imaging lens disclosed is a six-element lens structure. However, the length of the lens is very long, and the too long lens cannot be applied to electronic devices that are increasingly thin and light.

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