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Portable electronic device and optical imaging lens thereof

An optical imaging lens and lens technology, which is applied in optics, optical components, instruments, etc., can solve the problems of unfavorable thinning and long distance of mobile phones and digital cameras, and achieve the effect of good optical performance and shortening length

Active Publication Date: 2016-02-10
GENIUS ELECTRONICS OPTICAL XIAMEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] As far as the four-piece lens structure is concerned, the distance from the object side of the first lens to the imaging surface on the optical axis is long in the past, which is not conducive to the thinning of mobile phones and digital cameras. Therefore, it is extremely necessary to develop a lens with good image quality and short length. the lens

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  • Portable electronic device and optical imaging lens thereof
  • Portable electronic device and optical imaging lens thereof
  • Portable electronic device and optical imaging lens thereof

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Embodiment Construction

[0078] To further illustrate the various embodiments, the present invention is provided with accompanying drawings. These drawings are a part of the disclosure of the present invention, which are mainly used to illustrate the embodiments, and can be combined with related descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should understand other possible implementations and advantages of the present invention. Components in the figures are not drawn to scale, and similar component symbols are generally used to denote similar components.

[0079] The term “a lens has a positive refractive power (or negative refractive power)” mentioned in this specification means that the refractive power of the lens on the optical axis calculated by Gaussian optics theory is positive (or negative). The image side and the object side are defined as the range through which the imaging ray passes, wh...

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Abstract

The present invention provides a portable electronic device and an optical imaging lens thereof. The optical imaging lens comprises in turn from an object side to an image side an aperture, a first lens, a second lens, a third lens and a fourth lens. The optical imaging lens only has the four lens having a reflective index, and satisfies the following relations: ALT / T2 is absolutely not more than 5.4 and (T2+T4) / G34 is absolutely not more than 4.0. The portable electronic device provided by the invention comprises a casing and an image module, the image module is installed in the casing and includes any one optical imaging lens according to the invention a lens barrel, a module backseat unit and an image sensor. The portable electronic device and the optical imaging lens thereof are used for optics camera, enough optical performance is maintained through controlling arrangement of concavo-convex surfaces of each lens and controlling relevant parameters through at least one relation, and the length of the lens is shortened under the condition of maintenance of good optical performance.

Description

technical field [0001] The present invention is related to a portable electronic device and its optical imaging lens, and especially related to a portable electronic device using a four-piece 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 image modules including optical imaging lenses, module backseat units, and image sensors. The thinner and lighter mobile phones and digital cameras have also increased the miniaturization requirements of image modules. With the technical progress and size reduction of the photosensitive coupling device (Charge Coupled Device, referred to as CCD) or complementary metal oxide semiconductor device (Complementary Metal-Oxide Semiconductor, referred to as CMOS), the optical imaging lens installed in the image module also needs to be reduced in size, but the optical The good optical performance of the imaging lens is a...

Claims

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Application Information

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IPC IPC(8): G02B13/18G02B13/00
Inventor 唐子健叶致仰
Owner GENIUS ELECTRONICS OPTICAL XIAMEN