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Optical camera lens group

A camera lens and lens technology, which is applied in optics, optical components, instruments, etc., can solve the problems of not being able to meet the camera lens module, etc., and achieve the effects of reducing sensitivity, reducing lens volume, and high resolution

Active Publication Date: 2014-11-05
LARGAN PRECISION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 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 meet the requirements. Higher-end photographic lens modules, coupled with the continuous development of high-performance and thinner electronic products, miniaturized photographic lenses equipped with high-resolution 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

[0097] 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 optical imaging lens group of the first embodiment is mainly composed of five lenses, which sequentially include from the object side to the image side:

[0098] A first lens 110 with positive refractive power, its object-side surface 111 and image-side surface 112 are both convex, and its material is plastic, and the object-side surface 111 and image-side surface 112 of the first lens are both aspherical;

[0099] A second lens 120 with negative refractive power, its object-side surface 121 and image-side surface 122 are both concave, and its material is plastic, and the object-side surface 121 and image-side surface 122 of the second lens are both aspherical;

[0100] A third lens 130 with positive refractive power, its object-side surface 131 is convex and image-si...

no. 2 example

[0127] 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 optical imaging lens group of the second embodiment is mainly composed of five lenses, which include sequentially from the object side to the image side:

[0128] 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 are both aspherical;

[0129] 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 are both aspherical;

[0130] A third lens 230 with negative refractive power, its object side surface 231 is convex and image side ...

no. 3 example

[0151] 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 optical imaging lens group of the third embodiment is mainly composed of five lenses, which sequentially include from the object side to the image side:

[0152] A first lens 310 with positive refractive power, its object-side surface 311 and image-side surface 312 are both convex, and its material is plastic, and the object-side surface 311 and image-side surface 312 of the first lens are both aspherical;

[0153] A second lens 320 with negative refractive power, its object-side surface 321 and image-side surface 322 are both concave, and its material is plastic, and the object-side surface 321 and image-side surface 322 of the second lens are both aspherical;

[0154] A third lens 330 with positive refractive power, its object-side surface 331 is convex and image-s...

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Abstract

The invention discloses an optical imaging lens group, comprising five lenses of refractive power which consist of a first lens, a second lens, a third lens, a fourth lens and a fifth lens in sequence from an object side to an image side, wherein the first lens has positive refractive power, and the surface of the object side of the first lens adopts a convex surface; the second lens has negative refractive power; the surface of the object side of the third lens adopts the convex surface, and the surface of the image side of the third lens adopts a concave surface; the surfaces of the object side and the image side of the fourth lens adopt non-spherical surfaces; and the surface of the image side of the fifth lens adopts the concave surface, and the surface of the image side of the fifth lens is provided with at least one point of inflexion. With the configuration mode of the optical camera lens group, the size of the camera lens and the sensitivity of the optical system can be effectively reduced, and higher resolving power can be obtained.

Description

technical field [0001] The invention relates to an optical camera lens group, in particular to a miniaturized optical camera lens group applied to portable electronic products. Background technique [0002] In recent years, with the rise of portable electronic products with imaging functions, the demand for miniaturized photographic lenses has increased day by day, and the photosensitive element of general photographic lenses is nothing more than a charge coupled device (CCD) or There are two types of Complementary Metal-Oxide Semiconductor Sensor (CMOSSensor), and with the advancement of semiconductor manufacturing technology, the pixel size of the photosensitive element is reduced, and the miniaturized photographic lens is gradually developing towards the high-pixel field. Therefore , the requirements for image quality are also increasing. [0003] Traditional miniaturized photographic lenses mounted on portable electronic products mostly adopt a four-piece lens structure...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/18G02B13/00G02B13/22G02B1/04
Inventor 林铭清黄歆璇
Owner LARGAN PRECISION