An ultra-high-definition wide-angle imaging optical system

An imaging optics and wide-angle technology, applied in optics, optical components, instruments, etc., can solve the problems of small field of view and low resolution

Active Publication Date: 2021-04-16
NINGBO YONGXIN OPTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] As people become more and more aware of safety, safe driving has become the focus of people's attention, and the requirements are getting higher and higher. Now the chip factory has launched a 1 / 1.8-inch large image sensor, which can meet this demand. The field of view of the lens is small and the resolution is low, so it is necessary to develop a wide-angle, ultra-high-definition lens

Method used

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  • An ultra-high-definition wide-angle imaging optical system
  • An ultra-high-definition wide-angle imaging optical system
  • An ultra-high-definition wide-angle imaging optical system

Examples

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Embodiment

[0021] This example figure 1 Shown: From the object plane to the image plane, the first lens L1 with negative power, the second lens L2 with positive power, the third lens L3 with negative power, and the lens with positive power The fourth lens L4, the fifth lens L5 with positive power, the sixth lens L6 with negative power, the seventh lens L7 with positive power and the eighth lens L8 with negative power, and the filter The light sheet IR, the chip protection glass CG, the diaphragm G is arranged between the fourth lens L4 and the fifth lens L5, the first lens L1 is a biconcave surface, the second lens L2 is a biconvex surface, and the third lens L3 is an object side surface of Concave meniscus structure, the fourth lens L4 is a double convex surface, the fifth lens L5 is a double convex surface, the sixth lens L6 is a double concave surface, the seventh lens L7 is a meniscus structure with a convex surface on the object side, the fifth lens L5 and the second lens Six lense...

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Abstract

The invention discloses an ultra-high-definition wide-angle imaging optical system, which is composed of eight lenses with specific focal power from the object side to the image side. The F number F# of the paraxial work of the whole system satisfies: 1.4≤F#≤1.7, The focal length f of the system satisfies: 3mm≤f≤6mm; the image height Imeg satisfies 1.5≤Imeg / f≤3. The advantage lies in the mixed design of eight spherical and aspherical surfaces, with reasonable focal power and reasonable parameter matching. Ensure that the optical system of the present invention has a sufficiently large image height, can effectively correct field curvature, distortion and aberration, and realize ultra-high resolution, and can maintain stable imaging performance at -40°C to 115°C.

Description

technical field [0001] The invention relates to the technical field of lens imaging, in particular to an ultra-high-definition wide-angle imaging optical system. Background technique [0002] As people become more and more aware of safety, safe driving has become the focus of people's attention, and the requirements are getting higher and higher. Now the chip factory has launched a 1 / 1.8-inch large image sensor, which can meet this demand. The field of view of the lens is small and the resolution is low, so it is necessary to develop a wide-angle, ultra-high-definition lens. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an ultra-high-definition imaging optical system that can meet the requirements of the market for ultra-high-definition lenses, and the maximum pixel can reach 8 million. [0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: an ultra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B13/06G02B13/18G02B1/00
CPCG02B1/00G02B13/0045G02B13/06G02B13/18
Inventor 张丽芝陈金珠喻军
Owner NINGBO YONGXIN OPTICS
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