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A high-pixel wide-angle lens for smart home

A wide-angle lens and smart home technology, applied in optical components, instruments, optics, etc., can solve the problems of small field of view, low resolution, and insufficient size, etc., to reduce production costs, reduce shooting dead angles, and have a simple and compact structure Effect

Active Publication Date: 2022-04-08
WEIHAI JIARUI PHOTOELECTRIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing optical lenses on the market generally have problems such as small field of view, low resolution, not large enough size, and many dead spots when shooting, which leads to dark and blurred images when shooting, making it difficult to achieve effective Effect

Method used

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  • A high-pixel wide-angle lens for smart home
  • A high-pixel wide-angle lens for smart home
  • A high-pixel wide-angle lens for smart home

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Experimental program
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Effect test

Embodiment 1

[0052] The effective focal length f of the lens is 1.65mm, the aperture value FNO is 2.8, the field of view is 160 degrees, and the total optical length TTL=15.1mm. The specific optical parameters are shown in Table 1:

[0053] Table 1

[0054] surface name surface type Surface radius thickness Refractive index Dispersion coefficient Lens One sphere 20.3244 0.971 1.77 49.62 sphere 1.8792 1.419 second lens sphere 25.5912 2.781 1.92 20.88 sphere -32.7262 0.742 aperture sphere unlimited 0.1 lens three sphere 50.3449 3.501 1.84 41.97 sphere -4.6784 0.1 lens four sphere 4.0911 1.653 1.71 53.94 lens five sphere -3.1246 0.921 1.92 20.88 sphere -34.7449 1 filter sphere unlimited 0.3 1.52 64.1 sphere unlimited 0.1 protective glass sphere unlimited 0.4 1.52 64.1 sphere unlimited 1.0218

[0055]...

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PUM

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Abstract

The invention discloses a high-pixel wide-angle lens for smart home, which includes a filter, a first lens group, and a second lens group; the first lens group is composed of a No. 1 lens and a No. 2 lens; the No. 1 lens has a negative optical focus The meniscus lens with the convex surface facing the object plane; the second lens is a biconvex lens with positive refractive power; the second lens group is composed of the third lens, the fourth lens and the fifth lens; the third lens is a positive refractive power Double-convex lens; No. 4 lens and No. 5 lens are cemented lenses bonded to each other; No. 1 lens, No. 2 lens, No. 3 lens, No. 4 lens, and No. 5 lens are arranged coaxially between the object plane and the image plane; The optical filter is arranged between the No. 5 lens and the image plane. The five spherical glass lenses of the present invention can achieve a maximum diagonal shooting angle of 160 degrees, has the advantages of large field of view and high resolution, and reduces the dead angle of shooting as much as possible while ensuring the brightness of the image, and is suitable for smart homes Use a high-resolution wide-angle lens.

Description

technical field [0001] The invention relates to a wide-angle lens, in particular to a high-pixel wide-angle lens for smart home, and belongs to the technical field of optical imaging. Background technique [0002] Smart home is based on the residence as a platform, using integrated wiring technology, network communication technology, security technology, automatic control technology, audio and video technology to integrate home life-related facilities, and build an efficient management system for residential facilities and family schedules. It is conducive to improving the safety, convenience, comfort and artistry of the home, and realizing an environmentally friendly and energy-saving living environment. Since smart homes involve audio and video equipment, security systems and many other pattern collection devices, high-definition lenses, as important electronic components for pattern collection, play a pivotal role in the construction of smart homes. The existing optical ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/06G02B13/00
CPCG02B13/005G02B13/06
Inventor 汪俊朋
Owner WEIHAI JIARUI PHOTOELECTRIC TECH CO LTD