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Portable electronic device and its optical imaging lens

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: 2017-09-15
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 its optical imaging lens
  • Portable electronic device and its optical imaging lens
  • Portable electronic device and its optical imaging lens

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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 object side are defined as the range through which the imaging light passes, wher...

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Abstract

The invention provides a portable electronic device and its optical imaging lens. The optical imaging lens of the present invention includes an aperture, first, second, third, and fourth lenses in sequence from the object side to the image side, and the optical imaging lens only has the above four lenses with refractive power, and satisfies the following relationship Formula: ALT / T2≦5.4; and (T2+T4) / G34≦4.0. The portable electronic device of the present invention includes a casing and an image module, the image module is installed in the casing, and the image module includes any optical imaging lens according to the present invention, a lens barrel, a module rear seat unit and An image sensor. The invention is used for optical photography, by controlling the concave-convex surface arrangement of each lens, and controlling related parameters with at least one relational expression, the length of the lens can be shortened under the condition of maintaining 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 technological advancement and size reduction of Charge Coupled Device (CCD) or Complementary Metal-Oxide Semiconductor (CMOS), the optical imaging lens installed in the image module also needs to be reduced. The volume, but the good optical performance of the optical imaging lens is also necessary to take into account. [0003] As far as the four-piece lens structure is concerned, the dis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/18G02B13/00
Inventor 唐子健叶致仰
Owner GENIUS ELECTRONICS OPTICAL XIAMEN