Unlock instant, AI-driven research and patent intelligence for your innovation.

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 large aperture, wide angle, focal power, lens distance and lens shape, etc., and achieve the effect of excellent optical characteristics

Active Publication Date: 2022-03-01
RUISHENG OPTOELECTRONICS TECH SUZHOU CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the common four-piece lens has good optical performance, its focal power, lens spacing and lens shape settings are still unreasonable, resulting in a lens structure that cannot meet the needs of large apertures while having good optical performance. , wide-angle design requirements

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Camera Optical Lens
  • Camera Optical Lens
  • Camera Optical Lens

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0032] 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, and the imaging optical lens 10 includes four lenses. Specifically, the imaging optical lens 10 includes, from the object side to the image side in sequence: a first lens L1 , an aperture S1 , a second lens L2 , a third lens L3 , and a fourth lens L4 . An optical element such as an optical filter (filter) GF may be disposed between the fourth lens L4 and the image plane Si.

[0033] In this embodiment, the first lens L1 has a negative refractive power, the second lens L2 has a positive refractive power, the third lens L3 has a positive refractive power, and the fourth lens L4 has a negative refractive power.

[0034] In this embodiment, the first lens L1 is made of plastic material, the second lens L2 is made of plastic material, the third lens L3 is made of plastic material, ...

no. 2 approach

[0121] The second embodiment is basically the same as the first embodiment, and the meanings of the symbols are the same as those of the first embodiment, and only the differences are listed below. Figure 5 Shown is the imaging optical lens 20 of the first embodiment of the present invention.

[0122] In this embodiment, the object side surface of the first lens L1 is convex at the paraxial position.

[0123] Table 5 and Table 6 show design data of the imaging optical lens 20 according to the second embodiment of the present invention.

[0124] 【table 5】

[0125]

[0126]

[0127] 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.

[0128] 【Table 6】

[0129]

[0130] Table 7 and Table 8 show the design data of inflection point and stagnation point of each lens in the imaging optical lens 20 according to the second embodiment of the present invention.

[0131] 【Table 7】 ...

no. 3 approach

[0140] The third embodiment is basically the same as the first embodiment, and the meanings of the symbols are the same as those of the first embodiment, and only the differences are listed below. Figure 9 Shown is the imaging optical lens 30 of the first embodiment of the present invention.

[0141] In this embodiment, the object side surface of the first lens L1 is convex at the paraxial position.

[0142] Table 9 and Table 10 show design data of the imaging optical lens 30 according to the third embodiment of the present invention.

[0143] 【Table 9】

[0144]

[0145]

[0146] Table 10 shows the aspheric surface data of each lens in the imaging optical lens 30 of the third embodiment of the present invention.

[0147] 【Table 10】

[0148]

[0149] Table 11 and Table 12 show the design data of the inflection point and the stagnation point of each lens in the imaging optical lens 30 according to the third embodiment of the present invention.

[0150] 【Table 11】 ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the field of optical lenses, and discloses a photographic optical lens. The photographic optical lens comprises four lenses in total. The four lenses are sequentially arranged from the object side to the image side: the first lens with negative refractive power, and the first lens with positive refractive power. The second lens has a positive refractive power, the third lens has a negative refractive power, and the fourth lens has a negative refractive power; and the following relationship is satisfied: ‑3.00≤f1 / f≤‑1.20; 4.00≤f2 / f≤9.00; 15.00≤R4 / R3; 2.50≤R7 / R8≤6.00; 10.00≤d5 / d6≤20.00. The imaging optical lens provided by the invention has good optical performance and at the same time satisfies the design requirements of large aperture and wide angle.

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B13/18G02B13/06
CPCG02B13/004G02B13/18G02B13/06G02B9/58
Inventor 张骏陈佳
Owner RUISHENG OPTOELECTRONICS TECH SUZHOU CO LTD