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Digital aerial surveying and mapping panchromatic camera optical system

An optical system and color camera technology, applied in the field of optical imaging, can solve the problems of high price and complex optical system, and achieve the effect of high resolution, low distortion performance and cost reduction.

Pending Publication Date: 2019-07-12
FOSHAN UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the optical system is relatively complicated, using as many as 12 optical lens elements and expensive fluorine crown glass materials

Method used

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  • Digital aerial surveying and mapping panchromatic camera optical system
  • Digital aerial surveying and mapping panchromatic camera optical system
  • Digital aerial surveying and mapping panchromatic camera optical system

Examples

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Embodiment 1

[0035] Embodiment 1, with reference to figure 1 , a digital aerial surveying and mapping panchromatic camera optical system, comprising: a front lens group, a middle lens group and a rear lens group;

[0036] The front lens group includes a first lens 100 and a second lens 200;

[0037] The middle lens group includes a third lens 300, a fourth lens 400, a fifth lens 500, a diaphragm 900, a sixth lens 600 and a seventh lens 700; the fourth lens 400 and the fifth lens 500 form a doublet lens , the diaphragm 900 is located between the fifth lens 500 and the sixth lens 600;

[0038] The rear lens group includes an eighth lens 800;

[0039] The first lens 100, the second lens 200, the fourth lens 400 and the eighth lens 800 are all meniscus lenses with negative refractive powers;

[0040] The third lens 300, the fifth lens 500 and the sixth lens 600 are all meniscus lenses with positive refractive power; the seventh lens 700 is a biconvex lens with positive refractive power;

...

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Abstract

The invention discloses a digital aerial surveying and mapping panchromatic camera optical system which comprises a front lens group, a middle lens group and a rear lens group; the front lens group comprises a first lens and a second lens; the middle lens group comprises a third lens, a fourth lens, a fifth lens, a diaphragm, a sixth lens and a seventh lens; the fourth lens and the fifth lens forma double-cemented lens, and the diaphragm is positioned between the fifth lens and the sixth lens; the rear lens group comprises an eighth lens; the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the diaphragm, the sixth lens, the seventh lens and the eighth lens are coaxially and sequentially arranged along the incident direction of the incident light. The digitalaerial surveying and mapping panchromatic camera optical system adopts fewer lens, reasonably distributes the focal power of each lens on the basis of ensuring large visual field, high resolution andlow distortion performance, combines and corrects primary and advanced aberrations, realizes light and small design, and reduces cost

Description

technical field [0001] The invention relates to the technical field of optical imaging, in particular to a digital aerial surveying and mapping panchromatic camera optical system. Background technique [0002] Aerial surveying and mapping cameras are mounted on airborne platforms, capable of imaging ground objects at long distances, providing high-resolution, low-distortion remote sensing image information, and are widely used in fields such as agriculture and forestry, emergency disaster reduction, and urban planning and construction. Especially in recent years, with the introduction of concepts such as "smart city" and "digital city" and the rapid development of digital cities, aerial surveying and mapping cameras can provide high-definition surveying and mapping images with large area arrays and high-resolution images with accurate positions Information can play an important role in emergency response, urban security, urban functions and spatial layout, water conservancy ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/06G02B27/00G02B1/00G01C11/02
CPCG02B13/006G02B13/06G02B27/0025G02B1/00G01C11/02
Inventor 伍雁雄谭海曙王茗祎
Owner FOSHAN UNIVERSITY
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