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Optical imaging lens and electronic device using same

An optical imaging lens and imaging surface technology, applied in optics, optical components, instruments, etc., can solve problems such as inapplicability of the lens, insufficient light input, and inability to image, achieve good optical performance, shorten the length of the lens, and improve the imaging quality Effect

Inactive Publication Date: 2014-10-29
GENIUS ELECTRONICS OPTICAL XIAMEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Patent I254140 in Taiwan, China discloses a four-piece optical lens. However, its aperture is too small, and its F# (F-number) is about 4.0. In actual use, it is easy to have insufficient light input, resulting in the failure of imaging; and the length of the lens is long. Up to 12mm, such an overly large lens cannot be used for electronic devices that are only 10mm thinner and thinner.

Method used

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  • Optical imaging lens and electronic device using same
  • Optical imaging lens and electronic device using same
  • Optical imaging lens and electronic device using same

Examples

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no. 1 example

[0120] see figure 1 , illustrating the first embodiment of the optical imaging lens 1 of the present invention. For the longitudinal spherical aberration (longitudinal spherical aberration) on the imaging surface 71 of the first embodiment, please refer to Figure 2A, astigmatic field aberration in the sagittal direction, please refer to Figure 2B 、 Astigmatism aberration in the meridian direction (tangential) please refer to Figure 2C , and distortion aberration (distortion aberration), please refer to Figure 2D . The Y-axis of each spherical aberration diagram in all embodiments represents the field of view, and its highest point is 1.0. In this embodiment, the Y-axis of each astigmatism diagram and distortion diagram represents the image height, and the system image height is 2.856 mm.

[0121] The first embodiment of the optical imaging lens 1 of the present invention includes a first lens 10 , an aperture 80 , a second lens 20 , a third lens 30 , a fourth lens 40 ,...

no. 2 example

[0137] see image 3 , illustrating the second embodiment of the optical imaging lens 1 of the present invention. For the longitudinal spherical aberration on the imaging surface 71 of the second embodiment, please refer to Figure 4A , Astigmatic aberration in the sagittal direction, please refer to Figure 4B 、Astigmatic aberration in the meridional direction, please refer to Figure 4C , Distortion aberration, please refer to Figure 4D . The second embodiment is similar to the first embodiment, except that the parameters of the lens, such as radius of curvature, lens refractive index, lens radius of curvature, lens thickness, lens aspheric coefficient or back focal length, etc. are different, here for more To clearly show the drawings, the features of the concave-convex configuration on the surface are only marked with differences from the first embodiment, and the same numbers are omitted. The fourth object side surface 41 of the fourth lens 40 in this preferred embod...

no. 3 example

[0140] see Figure 5 , illustrating the third embodiment of the optical imaging lens 1 of the present invention. For the longitudinal spherical aberration on the imaging surface 71 of the third embodiment, please refer to Figure 6A , Astigmatic aberration in the sagittal direction, please refer to Figure 6B 、Astigmatic aberration in the meridional direction, please refer to Figure 6C , Distortion aberration, please refer to Figure 6D . The third embodiment is similar to the first embodiment, except that the parameters of the lens, such as the radius of curvature, the refractive index of the lens, the radius of curvature of the lens, the thickness of the lens, the aspheric coefficient of the lens or the back focal length, etc. are different. The detailed optical data of the third embodiment are as Figure 22 As shown, the aspheric data such as Figure 23 As shown, the length of the optical imaging lens is 4.550 mm, while the system image height is 2.856 mm, and the HF...

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Abstract

The invention relates to an optical imaging lens and an electronic device using the optical imaging lens. The optical imaging lens comprises four lenses. A convex portion on the area nearby the optical axis is arranged on the image side of a first lens. A concave portion on the area nearby the circumference is arranged on the object side of a second lens, and a concave portion on the area nearby the circumference is arranged on the image side of the second lens. A concave portion on the area nearby the circumference is arranged on the object side of a third lens. A concave portion on the area nearby the optical axis is arranged on the object side of a fourth lens, and a concave portion on the area nearby the optical axis is arranged on the image side of the fourth lens. The electronic device comprises a machine casing and an image module. The image module comprises the optical imaging lens, a lens cone, a module rear seat unit, a substrate and an image sensor. The optical imaging lens is light in weight, reduces lens length, reduces manufacture cost, expands semi-angular field and is high in resolution and imaging quality.

Description

technical field [0001] The present invention generally relates to an optical imaging lens and an electronic device including the optical imaging lens. Specifically, the present invention particularly refers to an optical imaging lens with a shorter lens length, and an electronic device using the optical imaging lens. Background technique [0002] The specifications of consumer electronic products are changing with each passing day, and the pursuit of lightness, thinness and compactness has never slowed down. Therefore, the specifications of key components of electronic products such as optical lenses must continue to improve in order to meet the needs of consumers. The most important characteristics of optical lenses are nothing more than image quality and volume. [0003] Patent I254140 in Taiwan, China discloses a four-piece optical lens. However, its aperture is too small, and its F# (F-number) is about 4.0. In actual use, it is easy to have insufficient light input, res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/18G02B13/00
CPCG02B13/004G02B9/34
Inventor 陈思翰廖华滨叶龙
Owner GENIUS ELECTRONICS OPTICAL XIAMEN