Imaging lens system, image capturing apparatus and electronic apparatus

A lens system and imaging technology, applied in optical components, optics, instruments, etc., can solve problems such as unsatisfactory, high product unit price, and not easy to carry, and achieve the effects of avoiding excessively long back focus, reducing manufacturing costs, and improving convenience

Active Publication Date: 2016-12-07
LARGAN PRECISION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional telephoto optical system mostly adopts a multi-piece structure and is equipped with a spherical glass lens. This kind of configuration not only makes the lens too large and difficult to car

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example 》

[0126] Please refer to the first embodiment of the present invention Figure 1A , for the aberration curve of the first embodiment, please refer to Figure 1B . The imaging device of the first embodiment includes an imaging lens system (not otherwise labeled) and an electronic photosensitive element 180. The imaging lens system mainly consists of five first lenses 110, second lenses 120, and third lenses with refractive power. 130, the fourth lens 140 and the fifth lens 150, which sequentially include from the object side to the image side:

[0127] A first lens 110 with positive refractive power is made of plastic, its object side 111 is convex at the near optical axis, its image side 112 is concave at the near optical axis, and its object side 111 and image side 112 are both is aspheric;

[0128] A second lens 120 with negative refractive power is made of plastic, its object side 121 is concave at the near optical axis, its image side 122 is concave at the near optical axi...

no. 2 example 》

[0161] Please refer to the second embodiment of the present invention Figure 2A , for the aberration curve of the second embodiment, please refer to Figure 2B . The imaging device of the second embodiment includes an imaging lens system (not otherwise labeled) and an electronic photosensitive element 280. The imaging lens system mainly consists of five first lenses 210, second lenses 220, and third lenses with refractive power. 230, the fourth lens 240 and the fifth lens 250, which sequentially include from the object side to the image side:

[0162] A first lens 210 with positive refractive power is made of plastic, its object side 211 is convex at the near optical axis, its image side 212 is concave at the near optical axis, and its object side 211 and image side 212 are both is aspheric;

[0163] A second lens 220 with negative refractive power is made of plastic, its object side 221 is convex at the near optical axis, its image side 222 is concave at the near optical ...

no. 3 example 》

[0175] Please refer to the third embodiment of the present invention Figure 3A , for the aberration curve of the third embodiment, please refer to Figure 3B . The imaging device of the third embodiment includes an imaging lens system (not otherwise labeled) and an electronic photosensitive element 380. The imaging lens system mainly consists of five first lenses 310, second lenses 320, and third lenses with refractive power. 330, the fourth lens 340 and the fifth lens 350, which sequentially include from the object side to the image side:

[0176] A first lens 310 with positive refractive power is made of plastic, its object side 311 is convex at the near optical axis, its image side 312 is convex at the near optical axis, and its object side 311 and image side 312 are both is aspheric;

[0177] A second lens 320 with negative refractive power is made of plastic, its object side 321 is concave at the near optical axis, its image side 322 is concave at the near optical axi...

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PUM

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Abstract

The invention provides an imaging lens system, an image capturing apparatus and an electronic apparatus. The imaging lens system sequentially comprises the following parts from an object side to an image side; a first lens with positive refraction power, wherein its object-side surface is provided with a convex surface nearby an optical axis; a second lens with negative refraction power; a third lens with refraction power whose object-side surface and image-side surface are both aspheric surfaces; a fourth lens with refraction power, wherein its object-side surface and image-side surface are both aspheric surfaces; and a fifth lens with negative refraction power, wherein its object-side surface is provided with a concave surface nearby the optical axis, its image-side surface is provided with a convex surface nearby the optical axis, and the object-side surface and the image-side surface are both aspheric surfaces. The imaging lens system is additionally provided with an aperture, and there are no lenses with refraction power between the aperture and the first lens. Under aforementioned system configuration, while a distant-view shooting function is satisfied, thin type optical design facilitates carrying, also substantially decreases the manufacturing cost and facilitates market application.

Description

technical field [0001] The present invention relates to an imaging lens system and an image capturing device, in particular to an imaging lens system, an image capturing device and an electronic device applicable to electronic devices. Background technique [0002] With the gradual thinning of personal electronic products, the internal components of electronic products are required to have a smaller size. Under the market trend, the size of the imaging lens system must be miniaturized. In addition to the requirement of miniaturization, the pixel area of ​​the photosensitive element is reduced due to the advancement of semiconductor process technology, and the imaging lens is gradually developing into the field of high pixel. At the same time, the rise of electronic devices such as smart phones and tablet computers also increases the demand for high-quality micro-imaging lens systems. [0003] The traditional telephoto optical system mostly adopts a multi-piece structure an...

Claims

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Application Information

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IPC IPC(8): G02B15/14
Inventor 廖凌峣黄歆璇
Owner LARGAN PRECISION
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