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Four-piece infrared single-wavelength lens set

A single-wavelength, four-piece technology, applied in optical components, instruments, optics, etc., can solve problems such as inability to accurately focus detection, changing the focal length of the lens group, and inability to meet the depth sensing effect of 3D games.

Active Publication Date: 2021-07-20
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. At present, game consoles mainly use 3D games that are more three-dimensional, realistic and immersive. Therefore, the current or previous lens sets of the applicant are all 2D. 2D 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 group dedicated to the game machine, plastic lenses are used in pursuit of low cost. Firstly, the poor light transmission of the material affects the game machine Depth detection accuracy is not enough as one of the key factors. Second, the plastic lens is prone to overheating or overcooling in the ambient temperature, so that 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 requirements. Two major technical issues for accurate sensing of depth and distance in 3D games

Method used

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  • Four-piece infrared single-wavelength lens set
  • Four-piece infrared single-wavelength lens set
  • Four-piece infrared single-wavelength lens set

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0063] Please refer to Figure 1A and Figure 1B ,in Figure 1A A schematic diagram showing a four-piece infrared single-wavelength 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 four-piece infrared single-wavelength lens set of the first embodiment. Depend on Figure 1A It can be seen that the four-piece infrared single-wavelength 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, a fourth lens 140, The infrared band-pass filter 170 and the imaging surface 180, wherein the four-piece infrared single-wavelength lens group has four lenses with refractive power. The aperture 100 is disposed between the image-side surface 112 of the first lens 110 and the object-side surface 121 of the second lens 120 .

[0064] The first lens 110 has positive refractive power and is mad...

no. 2 example

[0092] Please refer to Figure 2A and Figure 2B ,in Figure 2A A schematic diagram showing a four-piece infrared single-wavelength 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 four-piece infrared single-wavelength lens set of the second embodiment. Depend on Figure 2A It can be seen that the four-piece infrared single-wavelength 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, a fourth lens 240, The infrared band-pass filter 270 and the imaging surface 280, wherein the four-piece infrared single-wavelength lens group has four lenses with refractive power. The aperture 200 is disposed between the image-side surface 212 of the first lens 210 and the object-side surface 221 of the second lens 220 .

[0093] The first lens 210 has a positive refractive power and...

no. 3 example

[0106] Please refer to Figure 3A and Figure 3B ,in Figure 3A A schematic diagram showing a four-piece infrared single-wavelength 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 four-piece infrared single-wavelength lens set of the third embodiment. Depend on Figure 3A It can be seen that the four-piece infrared single-wavelength 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, a fourth lens 340, The infrared band-pass filter 370 and the imaging surface 380, wherein the four-piece infrared single-wavelength lens group has four lenses with refractive power. The aperture 300 is disposed between the image-side surface 312 of the first lens 310 and the object-side surface 321 of the second lens 320 .

[0107] The first lens 310 has a positive refractive power and i...

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PUM

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Abstract

The present invention is a four-piece infrared single-wavelength lens group, which sequentially includes from the object side to the image side: a first lens with positive refractive power, a convex surface near the optical axis on the object side surface, and a near optical axis on the image side surface A concave surface at the axis; an aperture; a second lens with refractive power; a third lens with positive refractive power, a concave surface near the optical axis on the object side surface, and a convex surface near the optical axis on the image side surface; The fourth lens has negative refractive power, and its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Accordingly, it has the effects of increasing the viewing angle, high resolution capability, short lens length, and small distortion.

Description

technical field [0001] The invention relates to a lens group, in particular to a miniaturized four-piece infrared single-wavelength lens group applied to electronic products. Background technique [0002] Today's digital imaging 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 have a larger field of view. The wide-angle lens group is the mainstream. [0003] Among them, the applicant also previously proposed a number of lens sets related to infrare...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B13/06G02B13/14G02B13/18
CPCG02B13/004G02B13/06G02B13/14G02B13/18
Inventor 蔡斐欣赖淑姿
Owner NEWMAX TECH