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Imaging lens compatible with visible light and near-infrared light and imaging device

An imaging lens and near-infrared technology, applied in optics, optical components, instruments, etc., can solve problems such as increased shooting distance, poor resolution, and user inconvenience, so as to improve the field of view, ensure imaging resolution, and overcome the field of view small corner effect

Active Publication Date: 2021-08-17
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Imaging lenses compatible with visible light and near-infrared in the prior art usually have a small field of view and poor resolution due to the need for a wide range of compatible light wavelength bands.
When using an imaging lens with a smaller viewing angle to capture images with a larger viewing angle range, it is necessary to increase the shooting distance, which brings great inconvenience to users.

Method used

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  • Imaging lens compatible with visible light and near-infrared light and imaging device
  • Imaging lens compatible with visible light and near-infrared light and imaging device
  • Imaging lens compatible with visible light and near-infrared light and imaging device

Examples

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Embodiment Construction

[0020] Exemplary embodiments of the present application are described below in conjunction with the accompanying drawings, which include various details of the embodiments of the present application to facilitate understanding, and they should be regarded as exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the application. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

[0021] figure 1 A schematic structural diagram of an imaging lens compatible with visible light and near-infrared (wavelength range of 400nm-1000nm) provided for the first embodiment of the present application, as shown in figure 1 As shown in , L1 is the first lens, L2 is the second lens, L3 is the third lens, L4 is the fourth lens, STOP1 is the first aperture, STO...

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Abstract

The invention discloses an imaging lens compatible with visible light and near-infrared light and an imaging device, and relates to the technical field of optical imaging. The imaging lens compatible with visible light and near-infrared light comprises a first lens with negative refractive power, a second lens with negative refractive power, a third lens with positive refractive power, a fourth lens with positive refractive power, a first diaphragm, a second diaphragm, a fifth lens with positive refractive power, a sixth lens with negative refractive power, a seventh lens with positive refractive power and an eighth lens with positive refractive power in sequence from front to back along the direction of incident light, wherein the fifth lens and the sixth lens form a doublet lens. According to the invention, the view field angle of the imaging lens can be improved, the high imaging resolution ratio is ensured, and the technical effect of shooting a larger range of images at the same distance is realized.

Description

technical field [0001] The present application relates to the technical field of optical design, in particular to an imaging lens and imaging device compatible with visible light and near-infrared in the technical field of optical imaging. Background technique [0002] The imaging lenses compatible with visible light and near-infrared in the prior art usually have a small field of view and poor resolution because they require a wide range of compatible light wavelength bands. However, when an imaging lens with a smaller viewing angle is used to capture an image with a larger viewing angle range, the shooting distance needs to be increased, which brings great inconvenience to users. Contents of the invention [0003] The technical solution adopted by this application to solve the technical problem is to provide an imaging lens compatible with visible light and near-infrared, including: the imaging lens sequentially includes a first lens with negative refractive power from f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18G02B13/14
CPCG02B13/0045G02B13/18G02B13/14G02B13/008
Inventor 郑旭君潘志宏李抱朴熊晓琴汪学军
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD
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