Five-piece infrared single-focus lens group

An infrared, single-focus technology, applied in optical components, instruments, optics, etc., can solve problems such as the inability to meet the depth sensing effect of 3D games, the inability to meet the precise sensing of 3D games, and the inability to accurately focus detection.

Active Publication Date: 2021-12-17
NEWMAX TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among them, the applicant also previously proposed a number of lens sets related to infrared wavelength reception, but the current game consoles mainly focus on more three-dimensional, realistic and immersive 3D games, so the current or the applicant’s previous lens sets are all in the form of 2D plane game detection is a requirement, so that it cannot meet the depth sensing function that 3D games focus on
[0004] Furthermore, for the infrared receiving and sensing lens sets dedicated to game consoles, plastic lenses are used in pursuit of low cost. First, the poor light transmission of the material is one of the key factors affecting the lack of depth detection accuracy of game consoles. Second, plastic lenses are easy to detect. When the ambient temperature is too hot or too cold, the focal length of the lens group changes and cannot be accurately focused. As mentioned above, the current infrared wavelength receiving lens group cannot meet the two technical issues of accurate sensing of depth and distance in 3D games

Method used

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  • Five-piece infrared single-focus lens group
  • Five-piece infrared single-focus lens group
  • Five-piece infrared single-focus lens group

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0077] Such as Figure 1A and Figure 1B ,in Figure 1A A schematic diagram showing a five-piece infrared single-focus lens group according to the first embodiment of the present invention, Figure 1B From left to right are the field curvature and distortion aberration curves of the five-element infrared single-focus lens set of the first embodiment. Depend on Figure 1A It can be seen that the five-piece infrared single-focus lens group includes an aperture 100 and an optical group, and the optical group includes a first lens 110, a second lens 120, a third lens 130, and a fourth lens 140 from the object side to the image side in sequence. , the fifth lens 150, the infrared band-pass component 170, and the imaging surface 180, wherein the number of lenses with refractive power in the five-element infrared single-focus lens group is five. The aperture 100 is disposed between the subject and the first lens 110 .

[0078] The first lens 110 has positive refractive power and is...

no. 2 example

[0109] Such as Figure 2A and Figure 2B ,in Figure 2A A schematic diagram showing a five-piece infrared single-focus lens group according to the second embodiment of the present invention, Figure 2B From left to right are the field curvature and distortion aberration curves of the five-element infrared single-focus lens group of the second embodiment. Depend on Figure 2A It can be seen that the five-piece infrared single-focus lens group includes an aperture 200 and an optical group, and the optical group includes a first lens 210, a second lens 220, a third lens 230, and a fourth lens 240 from the object side to the image side in sequence. , the fifth lens 250, the infrared band-pass component 270, and the imaging surface 280, wherein the number of lenses with refractive power in the five-element infrared single-focus lens group is five. The aperture 200 is disposed between the subject and the first lens 210 .

[0110] The first lens 210 has positive refractive power...

no. 3 example

[0124] Such as Figure 3A and Figure 3B ,in Figure 3A A schematic diagram showing a five-piece infrared single-focus lens group according to the third embodiment of the present invention, Figure 3B From left to right are the field curvature and distortion aberration curves of the five-element infrared single-focus lens group of the third embodiment. Depend on Figure 3A It can be seen that the five-piece infrared single-focus lens group includes an aperture 300 and an optical group, and the optical group includes a first lens 310, a second lens 320, a third lens 330, and a fourth lens 340 from the object side to the image side in sequence. , the fifth lens 350, the infrared band-pass component 370, and the imaging surface 380, wherein the number of lenses with refractive power in the five-element infrared single-focus lens group is five. The aperture 300 is disposed between the subject and the first lens 310 .

[0125] The first lens 310 has a positive refractive power...

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Abstract

The invention relates to a five-piece infrared single-focus lens group, which sequentially, from an object side to an image side,comprises an aperture; a first lens with positive refractive power; a second lens with refractive power; a third lens with refractive power; a fourth lens with positive refractive power; and a fifth lens with negative refractive power. The distance from the object side surface of the first lens to the imaging surface on the optical axis is TL, the overall focal length of the five-piece type infrared ray single-focus lens group is f, the distance from the image side surface of the fifth lens to the imaging surface on the optical axis is BFL, half of the imaging height captured by the five-piece type infrared ray single-focus lens group on the imaging surface is IMH, And the following condition is satisfied: 3 < TL * f/(BFL * IMH) < 7. Therefore, the five-piece infrared single-focus lens group provided by the invention has the advantages of wide viewing angle, high resolution capability, short lens length and small distortion.

Description

technical field [0001] The invention relates to a five-piece lens group, in particular to a miniaturized five-piece infrared single-focus lens group applied to electronic products. Background technique [0002] Today's digital image technology is constantly innovating and changing, especially in the miniaturization of digital carriers such as digital cameras and mobile phones, and the photosensitive components such as CCD or CMOS are also required to be more miniaturized. In the application of infrared focusing lenses, in addition to using In the field of photography, it has also been widely used in the field of infrared receiving and sensing of game machines in recent years. In order to make the range of game machines sensing users wider, most of the lens groups that receive infrared wavelengths currently use lenses with larger picture angles. Wide-angle lenses are the mainstream. [0003] Among them, the applicant also previously proposed a number of lens sets related to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/06G02B13/18G02B13/14
CPCG02B13/0015G02B13/0045G02B13/008G02B13/06
Inventor 黄靖昀
Owner NEWMAX TECH
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