Camera Optical Lens

A technology of optical lens and optical total length, which is applied in the field of optical lens, can solve the problems of unreasonable setting of wide-angle, ultra-thin, focal power, lens distance and lens shape, etc., and achieve the effect of excellent optical characteristics

Active Publication Date: 2020-12-18
CHANGZHOU RAYTECH OPTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the development of technology and the increase of diversified needs of users, as the pixel area of ​​the photosensitive device continues to shrink, and the system’s requirements for imaging quality continue to increase, the six-element lens structure gradually appears in the lens design. Common Although the six-element lens already has good optical performance, its focal power, lens spacing and lens shape settings are still unreasonable, resulting in a lens structure that cannot meet wide-angle, Ultra-thin design requirements

Method used

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Experimental program
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no. 1 approach ）

[0040] Referring to the accompanying drawings, the present invention provides an imaging optical lens 10 . figure 1 Shown is the imaging optical lens 10 of the first embodiment of the present invention. exist figure 1 Among them, the left side is the object side, and the right side is the image side. The photographic optical lens 10 includes six lenses in total, and from the object side to the image side are the first lens L1, the aperture S1, the second lens L2, the third lens L3, The fourth lens L4, the fifth lens L5 and the sixth lens L6. An optical element such as an optical filter (filter) GF may be disposed between the sixth lens L6 and the image plane Si.

[0041]In this embodiment, the first lens L1 is made of glass, the second lens L2 is made of plastic, the third lens L3 is made of glass, the fourth lens L4 is made of plastic, the fifth lens L5 is made of plastic, and the sixth lens L6 Made of plastic. In other embodiments, each lens can also be made of other mat...

no. 2 approach ）

[0152] Figure 5 It is a schematic structural view of the imaging optical lens 20 in the second embodiment. The second embodiment is basically the same as the first embodiment. The meanings of the symbols in the following list are also the same as those in the first embodiment, so the same parts will not be repeated here. Only the differences are listed below.

[0153] In this embodiment, the object side surface of the second lens L2 is convex at the paraxial position.

[0154] Table 5 and Table 6 show design data of the imaging optical lens 20 according to the second embodiment of the present invention.

[0155] 【table 5】

[0156]

[0157]Table 6 shows the aspheric surface data of each lens in the imaging optical lens 20 according to the second embodiment of the present invention.

[0158] 【Table 6】

[0159]

[0160] Table 7 and Table 8 show the design data of inflection point and stagnation point of each lens in the imaging optical lens 20 .

[0161] 【Table 7】

...

no. 3 approach ）

[0169] Figure 9 It is a schematic structural view of the imaging optical lens 30 in the third embodiment. The third embodiment is basically the same as the first embodiment. The meanings of the symbols in the following list are also the same as those in the first embodiment, so the same parts will not be repeated here. Only the differences are listed below.

[0170] In this embodiment, the object side surface of the second lens L2 is convex at the paraxial position.

[0171] Table 9 and Table 10 show design data of the imaging optical lens 30 according to the third embodiment of the present invention.

[0172] 【Table 9】

[0173]

[0174] Table 10 shows the aspheric surface data of each lens in the imaging optical lens 30 of the third embodiment of the present invention.

[0175] 【Table 10】

[0176]

[0177] Table 11 and Table 12 show the design data of inflection point and stagnation point of each lens in the imaging optical lens 30 .

[0178] 【Table 11】

[0179] ...

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Abstract

The invention provides a photographic optical lens, which comprises six lenses in total, and the six lenses are sequentially arranged from the object side to the image side: a first lens with a negative refractive power, a second lens with a positive refractive power, and a lens with a positive refractive power. The third lens with positive refractive power, the fourth lens with negative refractive power, the fifth lens with positive refractive power and the sixth lens with negative refractive power; the Abbe number of the first lens is v1, and the Abbe number of the third lens is The Bei number is v3, the on-axis distance from the image side of the fifth lens to the object side of the sixth lens is d10, the on-axis thickness of the sixth lens is d11, and the following relationship is satisfied: 60.00≤v1≤90.00; 60.00≤v3 ≤90.00; 1.00≤d10 / d11≤5.00. The camera optical lens not only has good optical performance, but also meets the design requirements of ultra-wide-angle and ultra-thin.

Description

technical field [0001] The invention relates to the field of optical lenses, in particular to an imaging optical lens suitable for portable terminal devices such as smart phones and digital cameras, and imaging devices such as monitors and PC lenses. Background technique [0002] In recent years, with the rise of smart phones, the demand for miniaturized photographic lenses has been increasing, and the photosensitive devices of general photographic lenses are nothing more than photocoupled devices (Charge Coupled Device, CCD) or complementary metal oxide semiconductor devices (Complementary Metal -Oxide Semiconductor Sensor, CMOS Sensor), and due to the improvement of semiconductor manufacturing process technology, the pixel size of photosensitive devices has been reduced, and today's electronic products are developing with good functions and thin, light and small appearance. Therefore, it has Miniaturized camera lenses with good imaging quality have become the mainstream in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/18G02B13/06
CPCG02B13/0045G02B13/06G02B9/62
Inventor 窦沂蒙
Owner CHANGZHOU RAYTECH OPTRONICS CO LTD
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