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

camera lens

A camera lens and lens technology, applied in the field of camera lens, can solve the problem of insufficient distribution of refractive force and achieve the effect of excellent optical characteristics

Active Publication Date: 2018-10-30
AAC OPTICS (CHANGZHOU) CO LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The imaging lenses disclosed in Examples 1 to 4 in Patent Document 1 are composed of the above five lenses, but the distribution of the refractive power of the first lens and the third lens is not sufficient, so the wide angle is 2ω≧74.4
[0005] The imaging lens disclosed in Examples 1 and 2 in Patent Document 2 is composed of the above five lenses, but the distribution of the refractive power of the first lens and the third lens is not sufficient, so the wide-angle lens is 2ω≧78.4

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 lens
  • camera lens
  • camera lens

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0149] figure 2 It is a configuration diagram of the image pickup lens LA in Example 1. The data in Table 1 are: the object side surface and the curvature radius R of the image side surface of the first lens L1 to the fifth lens L5 constituting the imaging lens LA in Example 1, the center thickness of the lens and the distance d between the lenses, the refractive index nd, A Shell number νd. The data in Table 2 are: cone coefficient k, aspheric coefficient.

[0150] 【Table 1】

[0151]

[0152] 【Table 2】

[0153]

[0154] The following Table 5 shows the values ​​corresponding to the various numerical values ​​in each of Examples 1 and 2 and the parameters specified in the conditional formulae (1) to (7).

[0155] As shown in Table 5, Example 1 satisfies conditional formulae (1) to (7).

example 2

[0158] Image 6 It is a configuration diagram of the imaging lens LA in Example 2. Table 3 shows the object side surface and the curvature radius R of the image side surface of the first lens L1 to the fifth lens L5 constituting the imaging lens LA in Example 2, the center thickness of the lens, the distance d between the lenses, the refractive index nd, Abbe's number νd. Table 4 shows the conic coefficient k and the aspheric coefficient.

[0159] 【table 3】

[0160]

[0161] 【Table 4】

[0162]

[0163] As shown in Table 5, Example 2 satisfies the conditional formulae (1) to (7).

[0164] For the axial aberration of the camera lens LA in Example 2, see Figure 7 , see vertical chromatic aberration Figure 8 , field curvature and distortion see Figure 9 shown. like Figures 7 to 9 As shown, the Fno=2.16, 2ω=49.8°, TTL=5.259 of the camera lens LA in Example 2, and the lens is a narrow-angle, small, high-light camera lens, it is not difficult to understand why it h...

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

A camera lens is disclosed. The camera lens includes five piece ultra-thin and wide angle lenses with excellent optical properties and with chromatic aberration sufficiently corrected as follows: a first lens with positive refractive power; a second lens with negative refractive power; a third lens with positive refractive power; a fourth lens with positive refractive power; a fifth lens with negative refractive power which are arranged sequentially from the object side. The camera lens is characterized in that it meets specified conditions.

Description

【Technical field】 [0001] The present invention is an invention related to an imaging lens. In particular, it is very suitable for mobile phone camera components and WEB camera lenses that use high-pixel CCD, CMOS and other imaging elements. The imaging lens of the present invention includes 5 lenses, and has excellent optical characteristics; at the same time, the full picture angle (hereinafter referred to as 2ω) is narrower than 52°, high light intensity (hereinafter referred to as Fno) and F value of 2.2 or less. lens. 【Background technique】 [0002] In recent years, various imaging devices using imaging elements such as CCD and CMOS have become widespread. With the development of miniaturization and high performance of imaging elements, the society needs more imaging lenses with excellent optical characteristics, narrow angle, small size and high light output (Fno). [0003] The development of technology related to a 5-element camera lens with excellent optical charac...

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): G02B13/00G02B13/18
CPCG02B13/0045G02B9/60G02B27/0025
Inventor 寺冈弘之
Owner AAC OPTICS (CHANGZHOU) CO LTD