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Imaging lens element, camera module and electronic device

A technology of imaging lens and curved surface, applied in the direction of lens, installation, instrument, etc., can solve the problem that the imaging lens is difficult to meet

Active Publication Date: 2019-01-15
LARGAN PRECISION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] In summary, the known injection line structure in the prior art makes it difficult for the imaging lens to meet the requirements of the camera module of today's electronic devices. Therefore, it is necessary to develop an imaging lens that can help reduce stray light while meeting the specifications required by the camera module. Lens injection mark structure has become one of the most important issues today

Method used

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  • Imaging lens element, camera module and electronic device
  • Imaging lens element, camera module and electronic device
  • Imaging lens element, camera module and electronic device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0108] With reference Figure 1A and Figure 1B , Figure 1A A perspective view showing the imaging lens 100 of the first embodiment of the present invention, Figure 1B A front view of the imaging lens 100 of the first embodiment is shown. Depend on Figure 1A and Figure 1B It can be seen that the imaging lens 100 sequentially includes the optical effective area 140 and the outer diameter area 150 from the optical axis z to the periphery.

[0109] Specifically, the imaging lens 100 can be one of multiple imaging lenses in a camera module (not shown in the figure). According to the optical imaging requirements and assembly size requirements of the camera module, the imaging lens 100 needs to meet the optically effective specifications (here referred to as possible The diameter of the object side of the minimum optically effective area) is ψs, and the height limit specification that the imaging lens 100 needs to meet (here refers to the half of the outer diameter of the m...

no. 2 example

[0131] With reference Figure 2A , which is a schematic diagram of the imaging lens 200 according to the second embodiment of the present invention. Depend on Figure 2A It can be seen that the imaging lens 200 sequentially includes the optical effective area 240 and the outer diameter area 250 from the optical axis z to the periphery.

[0132] In the second embodiment, the optical effective specification ψs and height limit specification Rs to be satisfied by the imaging lens 200 may be the same as those of the imaging lens 100 in the first embodiment. In addition, other structural details of the imaging lens 200 may be the same as or different from the imaging lens 100 of the first embodiment.

[0133] With reference Figure 2B and Figure 2C , Figure 2B drawn according to Figure 2A The schematic diagram of the parameters, Figure 2C drawn according to Figure 2A Another parameter diagram of . The section of the imaging lens 200 described in the second embodiment ...

no. 3 example

[0145] With reference Figure 3A , which is a schematic diagram of the imaging lens 300 according to the third embodiment of the present invention. Depend on Figure 3A It can be seen that the imaging lens 300 sequentially includes an optical effective area 340 and an outer diameter area 350 from the optical axis z to the periphery.

[0146] In the third embodiment, the optical effective specification ψs and the height limit specification Rs to be satisfied by the imaging lens 300 may be the same as those of the imaging lens 100 in the first embodiment. In addition, other structural details of the imaging lens 300 may be the same as or different from the imaging lens 100 of the first embodiment.

[0147] With reference Figure 3B and Figure 3C , Figure 3B drawn according to Figure 3A The schematic diagram of the parameters, Figure 3C drawn according to Figure 3AAnother parameter diagram of . The section of the imaging lens 300 described in the third embodiment re...

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Abstract

An imaging lens element includes an effective optical section and an outer diameter section. The outer diameter section surrounds the effective optical section and includes an outer diameter curved surface, a withdrawn gate trace and a clearance surface. The outer diameter curved surface and the effective optical section are coaxial with respect to the optical axis. An outer diameter reference plane and the outer diameter curved surface are corresponding to each other with respect to the optical axis. The withdrawn gate trace is withdrawn from the outer diameter reference plane towards the optical axis and includes a gate trace curved surface. The clearance surface connects the outer diameter curved surface and the withdrawn gate trace. On a cross-sectional plane of the imaging lens element, a curvature center of the gate trace curved surface is closer to the optical axis than the gate trace curved surface is thereto.

Description

technical field [0001] The present invention relates to an imaging lens and a camera module, and in particular to an imaging lens and a camera module applied to a portable electronic device. Background technique [0002] The camera module on today's portable electronic devices usually contains multiple imaging lenses, and the outer diameter area of ​​the imaging lens is as smooth and bright as the optical effective area and has high reflectivity, so it cannot effectively attenuate the incident on the surface of the outer diameter area The intensity of reflected light, especially when there is a plane on the surface of the outer diameter area, such as the plane of the injection mark on the surface of the injection mark, will make the concentrated light beam incident on the plane of the injection mark, and may be almost completely reflected to the imaging surface to become a noise. Astigmatism affects the imaging quality of the camera module. [0003] With reference Figure 8...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B3/02
CPCG02B3/02G02B7/021G02B7/022G02B5/003G02B27/0018G02B13/002G02B7/02G02B1/041
Inventor 张明顺周明达
Owner LARGAN PRECISION