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Optical imaging lens and electronic device using the optical imaging lens

An optical imaging lens and imaging technology, applied in the field of optical lenses, can solve the problems that the length of the optical lens system cannot be effectively reduced, and achieve the effects of light, thin and small structure design, overcoming aberrations, and good practical performance

Active Publication Date: 2018-06-26
GENIUS ELECTRONICS OPTICAL XIAMEN
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] U.S. Patent No. 8441736, the patent case discloses an optical lens composed of five lenses, however, the system length of the optical lens cannot be effectively reduced to a certain length to meet the design requirements of thin mobile phones

Method used

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  • Optical imaging lens and electronic device using the optical imaging lens
  • Optical imaging lens and electronic device using the optical imaging lens
  • Optical imaging lens and electronic device using the optical imaging lens

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Embodiment Construction

[0107] Before the present invention is described in detail, it should be noted that in the following description, similar components are denoted by the same numerals.

[0108] The term "a lens has positive (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 ...

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Abstract

The invention relates to an optical lens, in particular to an optical imaging lens and an electronic device. The optical imaging lens comprises five lenses, and each lens has an object side and an image side; the image side of the first lens has a concave surface located in a region near the circumference; the object side of the second lens has a region near the circumference The image side of the second lens has a convex portion located in the vicinity of the circumference; the third lens is made of plastic material; the image side of the fourth lens has a convex portion located in the vicinity of the circumference; and the object side of the fifth lens It has a concave surface located in the vicinity of the circumference, and satisfies (G12+G45) / T3≧1.5 and T3 / G12≦1.1. The electronic device of the present invention includes a casing; and an image module, including the above-mentioned optical imaging lens, a lens barrel, a module rear seat unit, and an image sensor. The invention has both good practical performance and contributes to lightness, thinness and miniaturization.

Description

technical field [0001] The invention relates to an optical lens, in particular to an optical imaging lens and an electronic device using the optical imaging lens. Background technique [0002] In recent years, the popularization of portable electronic products such as mobile phones and digital cameras has led to the vigorous development of imaging module related technologies. The imaging module mainly includes components such as optical imaging lens, module holder unit and sensor. The thin and light trend of digital cameras also makes the miniaturization of image modules more and more demanding. For CMOS) technological progress and size reduction, the length of the optical lens loaded in the image module also needs to be shortened accordingly, but in order to avoid the decline of photographic effect and quality, good optical performance must still be taken into account when shortening the length of the optical lens. However, the most important characteristics of optical len...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/18G02B13/00
Inventor 许圣伟唐子健
Owner GENIUS ELECTRONICS OPTICAL XIAMEN
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