Wide-spectrum low-light imaging device

A low-light imaging and wide-spectrum technology, which is applied in the field of optical imaging, can solve the problems of lens corrosion and unclear imaging at night, and achieve the effects of not being prone to stray light and ghost images, easy to observe, and expanding the visible band

Active Publication Date: 2022-04-01
ZHEJIANG DALI TECH
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  • Abstract
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  • Claims
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Problems solved by technology

[0005] In view of the above analysis, the present invention aims to provide a wide-spectrum low-light imaging device to solve the problems of unclear imaging at night and lens corrosion in water mist environment in the prior art

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Embodiment Construction

[0034] A wide-spectrum low-light imaging device will be further described in detail below in conjunction with specific examples, which are only for the purpose of comparison and explanation, and the present invention is not limited to these examples.

[0035] In the description of the embodiments of the present invention, it should be noted that unless otherwise specified and limited, the term "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

[0036] The terms "top", "bottom", "above", "below" and "on" are used throughout the description to refer to relative positions of components of the device, ...

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Abstract

The invention relates to a wide-spectrum low-light imaging device, belongs to the field of optical imaging, and solves the problems that imaging is not clear in a low-illumination environment at night and a lens is easy to corrode in a rain and fog environment. A wide-spectrum low-light-level imaging device comprises a lens cover, a main lens barrel, a low-light-level optical lens and an image sensor. The low-light optical lens sequentially comprises a first lens, a second lens group head piece, a second lens group middle piece, a second lens group tail piece, a third lens and a fourth lens from the front end to the rear end in the light incidence direction. And the second lens group head piece, the second lens group middle piece and the second lens group tail piece are glued and connected by three glass materials with large abbe number difference to form a second lens group. According to the invention, clear imaging can be realized in a night low-illumination environment, and lens corrosion in a water mist environment can be realized.

Description

technical field [0001] The invention relates to the technical field of optical imaging, in particular to a wide-spectrum low-light imaging device. Background technique [0002] The visible light optical system device is greatly affected by the ambient illumination, especially when the ambient illumination is insufficient, the image contrast will be reduced and the imaging resolution will be affected. [0003] Although at night and other low-light conditions, auxiliary light sources can be used for lighting when using visible light lenses, but the use of auxiliary light sources not only increases power consumption and power consumption, but also has a complex structure and is extremely inconvenient to use. [0004] In addition, in some special environments such as rain and fog, the lens is easily corroded, making the entire device unusable, and the replacement cost of parts is high. Contents of the invention [0005] In view of the above analysis, the present invention aim...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/225G02B13/00
CPCY02A90/10
Inventor 陈腾飞
Owner ZHEJIANG DALI TECH
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