Optical imaging lens and electronic device applying optical imaging lens

A technology of optical imaging lens and imaging surface, which is applied in the field of optical lens, can solve the problems that are not conducive to thin design, and achieve the effects of light, thin and small structure design, shortened system length and good optical performance

Active Publication Date: 2014-07-09
GENIUS ELECTRONICS OPTICAL XIAMEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, the lens length of US Patent No. US8179616 is more than 11mm, which is not conducive to the thin design of portable electronic products such as mobile phones and digital cameras.

Method used

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  • Optical imaging lens and electronic device applying optical imaging lens
  • Optical imaging lens and electronic device applying optical imaging lens
  • Optical imaging lens and electronic device applying optical imaging lens

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Embodiment Construction

[0092] 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.

[0093] The term "a lens has positive refractive power (or negative refractive power)" in this specification means that the lens has positive refractive power (or negative refractive power) in the area near the optical axis. "The object side (or image side) of a lens has a convex surface (or concave surface) located in a certain area" means that the area is closer to the direction parallel to the optical axis than the area immediately outside the area in the radial direction. "Outwardly convex" (or "inwardly concave"), with figure 1 For example, where I is the optical axis and the lens is radially symmetrical to each other with the optical axis I as the axis of symmetry, the object side of the lens has a convex surface in the A region, a concave surface in the B region, and a convex surface in the C region , th...

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Abstract

The invention relates to an optical imaging lens and an electronic device applying the optical imaging lens. The optical imaging lens sequentially comprises a first lens, a second lens, a third lens and a fourth lens from the object side to the image side along an optical axis. The image side face of the first lens is provided with a convex face portion at the area nearby the circumference of the first lens. The object side face of the second lens is provided with a concave face portion at the area nearby the circumference of the second lens. The third lens has a positive refractive index, and the image side face of the third lens is provided with a concave face portion at the area nearby the circumference of the third lens. The fourth lens is made of plastic materials, and the object side face of the fourth lens is provided with a concave face portion at the area nearby the optical axis and provided with a convex face portion at the area nearby the circumference of the fourth lens. The four lenses have refractive indexes. The electronic device comprises a shell, a lens cone, a module rear base unit and an image sensor. The optical imaging lens has the good optical performance with the shortened length.

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 photography module related technologies. The photography 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 demand for miniaturization of photographic modules higher and higher. For the technological progress and size reduction of CMOS), the length of the optical imaging lens loaded in the camera module also needs to be shortened accordingly. performance. [0003] US Patent Publication Nos. US7848032, US8284502, US8179616, and Taiwan Patent Publication No. TW201109712 all disclose an optical lens composed of four lenses, and the length ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/18
CPCG02B3/04G02B13/004G02B9/34H04N23/57H04N23/55H04N23/51
Inventor 陈雁斌叶龙陈锋
Owner GENIUS ELECTRONICS OPTICAL XIAMEN
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