Optical shot for image capture

An optical lens and lens technology, applied in optics, optical components, instruments, etc., can solve problems such as the inability to meet photographic lens modules, and achieve the effects of reducing sensitivity, reducing lens size, and high resolution

Active Publication Date: 2011-11-09
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 m...

Method used

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  • Optical shot for image capture

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0098] 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 image-capturing optical lens of the first embodiment is mainly composed of five lenses, which sequentially include from the object side to the image side:

[0099] A first lens 100 with positive refractive power, its object-side surface 101 and image-side surface 102 are both convex, and its material is plastic, and the object-side surface 101 and image-side surface 102 of the first lens 100 are both aspherical;

[0100] A second lens 110 with negative refractive power, the object-side surface 111 and the image-side surface 112 are concave, the material is plastic, the object-side surface 111 and the image-side surface 112 of the second lens 110 are aspheric;

[0101] A third lens 120 with negative refractive power, the object side surface 121 is concave and the image...

no. 2 example

[0128] 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 image-taking optical lens of the second embodiment is mainly composed of five lenses, which sequentially include from the object side to the image side:

[0129] A first lens 200 with positive refractive power, its object-side surface 201 and image-side surface 202 are both convex, and its material is plastic, and the object-side surface 201 and image-side surface 202 of the first lens 200 are both aspherical;

[0130] A second lens 210 with negative 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 second lens 210 are both aspherical ;

[0131] A third lens 220 with negative refractive power, its object-side surface 221 is concave an...

no. 3 example

[0152] 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 image-taking optical lens of the third embodiment is mainly composed of five lenses, which sequentially include from the object side to the image side:

[0153] A first lens 300 with positive refractive power, its object-side surface 301 and image-side surface 302 are both convex, and its material is plastic, and the object-side surface 301 and image-side surface 302 of the first lens 300 are both aspherical;

[0154] A second lens 310 with negative refractive power, the object side surface 311 and the image side surface 312 are concave, the material is plastic, the object side surface 311 and the image side surface 312 of the second lens 310 are aspheric;

[0155] A third lens 320 with negative refractive power, its object side surface 321 is concave and image side ...

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Abstract

The invention discloses an optical shot for image capture. The optical shot comprises five lenses with refractive power, which, from an object side to an image side, are sequentially a first lens with positive refractive power, a second lens with negative refractive power, a third lens, a fourth lens with positive refractive power and a fifth lens with negative refractive power, wherein the object side surface of the first lens is a convex surface; the object side surface of the second lens is a concave surface; the object side surface of the fourth lens is a convex surface, and at least one surface of the object side surface and the image side surface of the fourth lens is an aspheric surface; and the object side surface of the fifth lens is a concave surface, and at least one inflectionpoint is formed on the image side surface of the fifth lens. The optical shot for image capture is also provided with an aperture and an electric photosensitive element for imaging a photographed object; and the aperture is arranged between the photographed object and the second lens. Through the mode of configuring the lens group, the shot volume can be effectively reduced, the sensitivity of anoptical system can be reduced, and higher resolution power can be acquired.

Description

technical field [0001] The invention relates to an optical lens for taking images, in particular to a miniaturized optical lens for taking images 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 (CMOS Sensor), and with the improvement of semiconductor process 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 str...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/18
Inventor 汤相岐陈俊杉蔡宗翰
Owner LARGAN PRECISION
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