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Optical imaging lens and portable electronic device

An optical imaging lens and imaging technology, applied in optics, optical components, instruments, etc., can solve the problems of unfavorable thinning and large distance of mobile phones and digital cameras, achieve good imaging quality and overcome aberrations

Active Publication Date: 2018-09-25
GENIUS ELECTRONICS OPTICAL XIAMEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In addition, in terms of the three-piece lens structure, the distance between the object side of the first lens and the imaging surface on the optical axis of the conventional optical imaging lens is large, which is not conducive to the thinning of mobile phones and digital cameras

Method used

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  • Optical imaging lens and portable electronic device
  • Optical imaging lens and portable electronic device
  • Optical imaging lens and portable electronic device

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Embodiment Construction

[0036] The term "a lens has a positive refractive power (or negative refractive power)" in this specification refers to the positive (or negative) refractive power of the lens on the optical axis calculated by Gaussian optics theory. The image side and object side are defined as the range through which the imaging light passes, where the imaging light includes the chief ray Lc and the marginal ray Lm, such as figure 1 As shown, I is the optical axis and this lens is radially symmetrical to each other with the optical axis I as the symmetry axis. The area where the light rays pass through the optical axis is the area A near the optical axis, and the area where the marginal light rays pass is the area C near the circumference. , In addition, the lens also includes an extension E (that is, the area near the circumference C radially outward), which is used for the lens to be assembled in an optical imaging lens, and the ideal imaging light does not pass through the extension E , b...

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Abstract

The invention discloses an optical imaging lens, which sequentially includes an aperture, first, second and third lenses along an optical axis from the object side to the image side, and each lens has an object side and an image side. The image side of the first lens has a convex portion located in the vicinity of the circumference. The second lens has negative refractive power, and the image side of the second lens has a convex portion located in the vicinity of the optical axis. The optical imaging lens meets: 2×ν1≦ν2+ν3, where ν1, ν2, and ν3 are dispersion coefficients of the first, second, and third lenses, respectively. In addition, the invention also discloses a portable electronic device. The invention is used for optical photography and imaging, so that the optical imaging lens still has the optical performance capable of effectively overcoming the aberration under the condition of shortening the system length, and provides good imaging quality.

Description

technical field [0001] The present invention relates to an optical lens and an electronic device, in particular to an optical imaging lens and a portable electronic device. Background technique [0002] In recent years, the popularity of portable electronic products such as mobile phones and digital cameras has led to the vigorous development of imaging module related technologies. This imaging module mainly includes components such as optical imaging lenses, module holder units and sensors. Mobile phones The trend of thinner and lighter digital cameras also makes the miniaturization of image modules more and more demanding. With the technological progress and size reduction of charge coupled device (CCD) and complementary metal oxide semiconductor (CMOS), the optical imaging lens loaded in the image module needs to be shortened accordingly. length. However, in order to avoid degradation of photographic effect and quality, good optical performance must still be taken into ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00
CPCG02B13/0035G02B5/005G02B9/12G02B13/001G02B13/18
Inventor 唐子健陈郁茗
Owner GENIUS ELECTRONICS OPTICAL XIAMEN
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