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Image lens assembly, image capturing unit and electronic device

A lens group and lens technology, applied in optical components, optics, instruments, etc., to enhance the ability to correct aberrations and improve quality

Active Publication Date: 2022-02-18
LARGAN PRECISION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the optical lens in the past is not easy to achieve a balance between the requirements of imaging quality, sensitivity, aperture size, volume or viewing angle, so the present invention provides an optical lens to meet the needs

Method used

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  • Image lens assembly, image capturing unit and electronic device
  • Image lens assembly, image capturing unit and electronic device
  • Image lens assembly, image capturing unit and electronic device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0089] Imaging lens group comprises five lens and five side lens along the optical path of the object to the image side, a first lens, second lens, third lens, fourth lens and the fifth lens.

[0090] A first lens having a positive refractive power. Whereby, the auxiliary light enters the wide angle lens image group.

[0091] A second lens having a positive refractive power; thereby, help image lens group of positive refractive power mainly dispersed on the first and second lens, and the light guided to the imaging surface via a second lens having a positive refractive power . A second lens in the image-side surface may be a convex surface near the optical axis; whereby the adjustable optical path, and the total length of the image lens group contributes to the properly controlled.

[0092] The third lens may have negative refractive power. Thereby, aberrations can be balanced image through a lens group because the resulting compression volume.

[0093] The fourth lens having a po...

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Abstract

The invention discloses an image lens assembly, image capturing unit and electronic device. The image lens assembly includes five lens elements which are, in order from an object side to an image side along an optical path: a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. The first lens element has positive refractive power. The second lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The fourth lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof and having at least one concave critical point in an off-axis region thereof. The fifth lens element has an image-side surface being concave in a paraxial region thereof and having at least one convex critical point in an off-axis region thereof. When a specific condition is satisfied, the image lens assembly can meet the requirements of wide viewing angle, miniaturization, and high imaging quality. The image capturing unit has the image lens assembly. The electronic device has the image capturing unit.

Description

Technical field [0001] The present invention relates to an image lens group, an image pickup apparatus, and an electronic device, particularly an image lens group and an image forming apparatus suitable for an electronic device. Background technique [0002] As the semiconductor process technology is more refined, the performance of electronic photosensitive components has improved, and the pixels can reach a slight size, so the optical lens with high imaging quality is an indispensable ring. [0003] With the new month of technology, the application range of electronic devices equipped with optical lenses is more wide, and the requirements for optical lenses are also more diverse. Since the past optical lens is less likely to be balanced between imaging quality, sensitivity, aperture size, volume or viewing angle, the present invention provides an optical lens to meet demand. Inventive content [0004] The present invention provides an image lens group, an image pickup apparatu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/18G02B13/06
CPCG02B13/0045G02B13/06G02B9/60G02B13/0065G02B13/02G02B27/0025
Inventor 柯郁淳王劲森刘思欣陈纬彧
Owner LARGAN PRECISION
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