Vehicle-mounted camera lens

A vehicle camera and lens technology, applied in the field of optical lenses, can solve problems such as the inability to meet the needs of ADAS system algorithms, achieve excellent imaging quality, large aperture, and optimize the effect of lens ghosting

Active Publication Date: 2018-10-19
JIANGXI LIANCHUANG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] With the advancement of automotive electronics and imaging technology, image algorithms are constantly being introduced. For example, the algorithm of the ADAS system requires the lens to have a large distortion when it is within a small field of view, but the existing lens cannot Meet these special algorithm requirements in ADAS system

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0115] The schematic diagram of the cross-sectional structure of the vehicle-mounted camera lens of this embodiment can be referred to figure 1 , the field curvature and distortion curves of the vehicle-mounted camera lens in this embodiment are shown in Figure 2a and 2b shown. The relevant parameters of each lens in the vehicle-mounted camera lens in this embodiment are shown in Table 1-1.

[0116] Table 1-1

[0117]

[0118]

[0119] The aspherical parameters of the first lens L1 and the sixth lens L6 in this embodiment are shown in Table 1-2:

[0120] Table 1-2

[0121]

Embodiment 2

[0123] The structure of the vehicle-mounted camera lens provided by the second embodiment of the present invention is as follows: image 3 As shown, the field curvature and distortion curves of the vehicle-mounted camera lens are shown in Figure 4a and 4b shown. Specifically, the design parameters of the vehicle camera lens are shown in Table 2-1:

[0124] table 2-1

[0125]

[0126] The aspherical parameters of the first lens L1 and the sixth lens L6 in this embodiment are shown in Table 2-2:

[0127] Table 2-2

[0128]

[0129]

Embodiment 3

[0131] The structure of the vehicle-mounted camera lens provided by the third embodiment of the present invention is as follows: Figure 5 As shown, the field curvature and distortion curves of the vehicle-mounted camera lens are shown in Figure 6a and 6b shown. Specifically, the design parameters of the vehicle camera lens are shown in Table 3-1:

[0132] Table 3-1

[0133]

[0134]

[0135] The aspherical parameters of the first lens L1 and the sixth lens L6 in this embodiment are shown in Table 3-2:

[0136] Table 3-2

[0137] Surface serial number

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Abstract

The invention discloses a vehicle-mounted camera lens, which comprises, in order from the object side to the image side, a first lens having a negative focal power, a convex object side surface and aconcave image side surface; a second lens having a negative focal power, a concave object side surface and a convex object side surface; a third lens having a positive focal power and double convex surfaces; a diaphragm; a fourth lens having a positive focal power and double convex surfaces; a fifth lens having a negative focal power and a concave object side surface, and forming a cemented lens with the fourth lens; a sixth lens having a positive focal power and a convex object side surface; and a filter. The second lens, the third lens, the fourth lens, and the fifth lenses are all glass spherical lenses, and the first lens and the sixth lens are glass aspherical lenses. The vehicle-mounted camera lens significantly increases the distortion of the lens in a small angle of view to meet the special algorithm requirements of the vehicle system; and the lens size and length of the lens are effectively controlled while improving the resolution of the entire lens.

Description

technical field [0001] The invention relates to the technical field of optical lenses, in particular to a vehicle-mounted camera lens. Background technique [0002] The Advanced Driver Assistant System (ADAS for short) is an active safety technology that assists the driver to detect possible dangers and even actively intervene through information collection and processing. From a technical point of view, ADAS has built a bridge for the accumulation of unmanned driving technology, which is a gradual road for car companies to enter unmanned driving; among the various ADAS systems, the image-based assisted driving system has the highest market share, and its The main reason is that the cost is low, and it can be used in combination with a driving recorder, and the detection result can be presented to the driver in the form of visual audio and video. Although its detection distance is not as good as infrared and radar, it is still very popular. [0003] Lane Departure Warning S...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/18G02B1/00
CPCG02B13/18G02B1/00G02B13/04G02B13/0045G02B9/60G02B7/028G02B13/006G02B9/62G02B1/02G02B3/0087G02B3/04G02B3/0062B60R11/04G02B2003/0093G03B30/00
Inventor 陈伟建鲍宇旻刘绪明曾吉勇王克民王卓
Owner JIANGXI LIANCHUANG ELECTRONICS CO LTD
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