High-resolution and ultra-wide field fish-eye lens optical system with day-and-night confocal function

A fisheye lens, high-resolution technology, used in optics, optical components, instruments, etc., can solve the problems of only 5 million pixels in resolution, unable to meet 8 million cameras, unable to meet night monitoring, etc., and achieve high resolution. , Guaranteed day and night confocal effect, low material cost effect

Active Publication Date: 2015-12-30
SUZHOU LIGHTLNS OPTICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The fisheye lenses currently used in security systems only have a field of view of 185 degrees and a resolution of only 5 megapixels, which cannot meet the requirements of the current 8 megapixel cameras. night monitoring

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  • High-resolution and ultra-wide field fish-eye lens optical system with day-and-night confocal function
  • High-resolution and ultra-wide field fish-eye lens optical system with day-and-night confocal function
  • High-resolution and ultra-wide field fish-eye lens optical system with day-and-night confocal function

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Embodiment Construction

[0015] The technical solutions in the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0016] ginseng figure 1 As shown, the high-resolution ultra-wide-angle day and night confocal fisheye lens optical system includes a lens group front group 10 and a lens group rear group 20 arranged in sequence along the light incident direction, the imaging surface is 40, the lens group front group 10 and the lens group rear group A diaphragm 30 is arranged between the groups 20, and the front group 10 of the lens group includes a first lens 11, a second lens ...

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Abstract

The invention discloses a high-resolution and ultra-wide field fish-eye lens optical system with the day-and-night confocal function. The system comprises a front lens set and a rear lens set which are sequentially arranged in the incident direction of light. A diaphragm is arranged between the front lens set and the rear lens set. The front lens set comprises a first lens, a second lens and a third lens which are sequentially arranged in the incident direction of the light. The first lens is a crescent-shaped negative lens, the second lens is a plane concave type negative lens, and the third lens is a plane convex type positive lens. The rear lens set comprises a fourth lens, a fifth lens and a sixth lens which are sequentially arranged in the incident direction of the light. The fourth lens is a crescent-shaped positive lens, the fifth lens is a biconvex positive lens, and the sixth lens is a plane convex type positive lens. A high-resolution and ultra-wide field fish-eye lens with the day-and-night confocal function has a visual angle of 220 degrees, the resolution ratio achieves 8 mega-pixel and day-and-night dual-purpose properties, and the fish-eye lens can be applied to security and protection monitoring of oversized fields such as halls of hotels and clubs particularly.

Description

technical field [0001] The invention relates to an optical imaging system, in particular to a high-resolution ultra-wide-angle day and night confocal fisheye lens optical system. Background technique [0002] The fisheye lens is an extreme wide-angle lens. In order to achieve the maximum photographic viewing angle, the diameter of the front lens protrudes toward the front of the lens in a parabolic shape. The angle of view of the fisheye lens strives to reach or exceed what the human eye can see. scope. Therefore, there is a big difference between the fisheye lens and the real world scene in people's eyes. The fisheye lenses currently used in security systems only have a field of view of 185 degrees and a resolution of only 5 megapixels, which cannot meet the requirements of the current 8 megapixel cameras. Night monitoring. Contents of the invention [0003] The purpose of the present invention is to provide a high-resolution ultra-wide-angle day and night confocal fis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/06G02B13/00
Inventor 吴刘森江东明陈艺敏江虹
Owner SUZHOU LIGHTLNS OPTICAL TECH
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