Imaging optical lens group

A technology of imaging optics and lens groups, applied in optics, optical components, instruments, etc., can solve problems such as unsatisfactory photography lens modules, and achieve the effects of reducing sensitivity, reducing volume, and high resolution

Active Publication Date: 2013-01-16
LARGAN PRECISION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, due to the prevalence of high-standard mobile devices such as smart phones (Smart Phone) and PDA (Personal Digital Assistant), the miniaturized photographic lens has rapidly increased in terms of pixels and image quality, and the existing four-element lens group will not be able to To satisfy higher-end photographic lens modules, coupled with the continuous development of high-performance and thinner electronic products, miniaturized photographic lenses with high pixels and high performance have become an important target for the development of high-end electronic products.

Method used

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Examples

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no. 1 example

[0094] Please refer to the schematic diagram of the optical system of the first embodiment of the present invention Figure 1A , for the aberration curve of the first embodiment, please refer to Figure 1B . The imaging optical lens group of the first embodiment is mainly composed of five lenses, which sequentially include from the object side to the image side:

[0095] A first lens 110 with positive refractive power, its object-side surface 111 and image-side surface 112 are convex, its material is glass, the object-side surface 111 and image-side surface 112 of the first lens 110 are both aspherical ;

[0096] A second lens 120 with negative refractive power, its object side surface 121 is convex and image side surface 122 is concave, its material is plastic, the object side surface 121 and image side surface 122 of the second lens 120 are both aspherical ;

[0097] A third lens 130 with positive refractive power, its object side surface 131 is concave and image side sur...

no. 2 example

[0125] Please refer to the schematic diagram of the optical system of the second embodiment of the present invention Figure 2A , for the aberration curve of the second embodiment, please refer to Figure 2B . The imaging optical lens group of the second embodiment is mainly composed of five lenses, which sequentially include from the object side to the image side:

[0126] A first lens 210 with positive refractive power, its object side surface 211 is convex and image side surface 212 is concave, its material is plastic, the object side surface 211 and image side surface 212 of the first lens 210 are both aspherical ;

[0127] A second lens 220 with negative refractive power, its object side surface 221 is convex and image side surface 222 is concave, its material is plastic, the object side surface 221 and image side surface 222 of the second lens 220 are both aspherical ;

[0128] A third lens 230 with positive refractive power, its object side surface 231 is concave and ...

no. 3 example

[0150] Please refer to the schematic diagram of the optical system of the third embodiment of the present invention Figure 3A , for the aberration curve of the third embodiment, please refer to Figure 3B . The imaging optical lens group of the third embodiment is mainly composed of five lenses, which sequentially include from the object side to the image side:

[0151] A first lens 310 with positive refractive power, its object side surface 311 is convex and image side surface 312 is concave, its material is plastic, the object side surface 311 and image side surface 312 of the first lens 310 are both aspherical ;

[0152] A second lens 320 with negative refractive power, its object side surface 321 is convex and image side surface 322 is concave, its material is plastic, the object side surface 321 and image side surface 322 of the second lens 320 are both aspherical ;

[0153] A third lens 330 with positive refractive power, its object side surface 331 is concave and i...

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Abstract

The invention discloses an imaging optical lens group. From an objective side to an image side, the imaging optical lens group sequentially comprises a first lens with positive refraction force, a second lens with negative refraction force, a third lens with the positive refraction force, a fourth lens with the negative refraction force and a fifth lens, wherein the surface of the objective side of the first lens is a convex surface; the surface of the objective side of the second lens is the convex surface, and the surface of the image side of the second lens is a concave surface; the surface of the objective side of the third lens is the concave surface, and the surface of the image side of the third lens is the convex surface; the surface of the image side of the fourth lens is the concave surface, and the surfaces of the objective side and the image side of the fourth lens are aspheric surfaces; the surface of the image side of the fifth lens is the concave surface, and the surfaces of the objective side and the image side of the fifth lens are the aspheric surfaces; and the imaging optical lens group also comprises a diaphragm which is arranged between a shot object and the second lens. In a lens group configuration mode, the size of the lens group can be effectively reduced, the sensitivity of an optical system is reduced, and high resolution can be obtained.

Description

[0001] This application is a divisional application of a patent application with an application date of July 9, 2010, an application number of 201010225252.6, and an invention title of "Imaging Optical Lens Group". technical field [0002] The invention relates to an imaging optical lens set, in particular to a miniaturized imaging optical lens set applied to portable electronic products. Background technique [0003] In recent years, with the rise of portable electronic products with photographic functions, the demand for miniaturized photographic lenses has increased day by day. The photosensitive element of a general photographic lens is nothing more than a photosensitive coupled device (Charge Coupled Device, CCD) or a complementary metal oxide semiconductor element (Complementary Metal-Oxide Semiconductor Sensor, CMOS Sensor). Moreover, due to improvements in manufacturing technology, the pixel size of the photosensitive element is reduced, and the miniaturized photogra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/18G02B13/00G02B13/22
Inventor 蔡宗翰
Owner LARGAN PRECISION
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