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Imaging lens

An imaging lens and lens technology, applied in the optical field, can solve problems such as poor lens performance, and achieve the effects of improving service performance, saving bonding, and saving installation steps

Pending Publication Date: 2021-08-24
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an imaging lens to solve the problem of poor performance of the lens

Method used

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Examples

Experimental program
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Effect test

Embodiment approach

[0067] According to one embodiment of the present invention, the connecting boss 213 is an annular boss (see Figure 5 ) or multiple arc-shaped bosses set at intervals (see Figure 6 ).

[0068] Such as Figure 7 As shown, according to an embodiment of the present invention, the axial height h of the connecting boss 213 satisfies: 0.08mm≤h≤1.5mm; the radial width d of the connecting boss 213 satisfies: d≥0.08mm.

[0069] Through the above arrangement, while ensuring the assembly accuracy of the present invention, the high-quality imaging of the present invention is also effectively guaranteed.

[0070] According to an embodiment of the present invention, the connecting boss 213 is formed by a plurality of arc-shaped bosses arranged at equal intervals, and there are at least three arc-shaped bosses. see Figure 6 As shown, in this embodiment, there are four arc-shaped bosses, and the four arc-shaped bosses are respectively arranged in a region whose central angle is 90°. O...

Embodiment 1

[0094] Such as Figure 15 As shown, in this embodiment, the imaging lens of the present invention includes a lens barrel 1 , a lens assembly 2 disposed in the lens barrel 1 , and a plurality of independent lenses. In this embodiment, the supporting spacer 21 in the lens assembly 2 is made of plastic material. The connecting boss 213 provided on the supporting spacer 21 is a straight boss (that is, the first spacer matching surface 211 and the second spacer matching surface 214 of the connecting boss in the radial direction are both cylindrical surfaces).

[0095] In this embodiment, a spacer is provided between the auxiliary bearing surface 13 of the lens barrel 1 and the lens assembly 2, and the convex surface 2131 of the connecting boss 213 abuts against the spacer, while the third lens mating surface of the lens 22 223 abuts against the spacer. Independent lenses are arranged at the front and back of the lens assembly 2 in the lens barrel 1 , thereby constituting the imag...

Embodiment 2

[0097] Such as Figure 16 As shown, in this embodiment, the imaging lens of the present invention includes a lens barrel 1 , a lens assembly 2 disposed in the lens barrel 1 , and a plurality of independent lenses. In this embodiment, the supporting spacer 21 in the lens assembly 2 is made of plastic material. The connecting boss 213 provided on the supporting spacer 21 is an oblique boss (that is, the first spacer matching surface 211 of the connecting boss in the radial direction is a cylindrical surface, and the second spacer matching surface 214 is a conical surface).

[0098] In this embodiment, a spacer is provided between the auxiliary bearing surface 13 of the lens barrel 1 and the lens assembly 2, and the convex surface 2131 of the connecting boss 213 is not in contact with the spacer, while the third lens mating surface of the lens 22 223 abuts against the spacer. Independent lenses are arranged at the front and back of the lens assembly 2 in the lens barrel 1 , the...

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Abstract

The invention relates to an imaging lens which comprises a lens barrel (1) and at least one lens assembly (2) arranged in the lens barrel (1). The lens assembly (2) comprises a supporting space ring (21) and a lens (22) which is coaxially arranged with the supporting space ring (21); and a first lens matching surface (221) on the outer side of the lens (22) in the circumferential direction is attached to or in interference fit with a first space ring matching surface (211) on the inner side of the supporting space ring (21) in the circumferential direction. According to the imaging lens, the lens assembly comprising the lens and the supporting space ring is designed; and the lens assembly, the lens barrel and other components are arranged in a matched mode, so that the assembling stability of the imaging lens and the service performance in a special environment are remarkably improved.

Description

technical field [0001] The invention relates to the field of optics, in particular to an imaging lens. Background technique [0002] With the development of imaging products in the direction of integration and convenience, the overall height of the matching imaging lens is required to be as small as possible under the premise of ensuring imaging quality, so as to reduce the space ratio of the entire imaging module. At the same time, for the main camera mounted on mobile phones and other digital products, the imaging technology with large image area and high pixels has increasingly become one of the core battlefields for the competition of various terminal manufacturers. [0003] In order to match the larger image surface requirements and smaller lens height requirements, it is required to focus on the important parameter TTL Ratio during design, TTL Ratio=TTL / H, where TTL is the lens height, H is the diagonal size of the chip, And when the TTL Ratio is smaller, the difficul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/02
CPCG02B7/026G02B7/02
Inventor 常斌全戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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