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Three-piece infrared single-wavelength projection lens set

A single-wavelength, three-piece technology, applied in the field of projection lens sets, can solve the problems of inability to meet the precise sensing of 3D games, the poor light transmission of materials, the depth detection accuracy of game machines, and the inability to accurately focus detection, etc.

Active Publication Date: 2021-02-26
NEWMAX TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[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 it cannot be accurately focused. As mentioned above, the current infrared wavelength receiving lens group cannot meet the two technical issues of accurate sensing of the depth and distance of 3D games.

Method used

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  • Three-piece infrared single-wavelength projection lens set
  • Three-piece infrared single-wavelength projection lens set
  • Three-piece infrared single-wavelength projection lens set

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0071] Please refer to Figure 1A and Figure 1B ,in Figure 1A A schematic diagram of a three-piece infrared single-wavelength projection lens assembly according to the first embodiment of the present invention is shown, Figure 1B From left to right are the curves of astigmatism and distortion aberration of the three-piece infrared single-wavelength projection lens set of the first embodiment. Depend on Figure 1A It can be seen that the three-piece infrared single-wavelength projection lens assembly 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 an image source in sequence from the imaging side to the image source side. In the source surface 180, there are three lenses with refractive power in the three-piece infrared single-wavelength projection lens set. The aperture 100 is disposed in front of the image source side surface 112 of the first lens 110 .

[0072] The first lens 110 ha...

no. 2 example

[0100] Please refer to Figure 2A and Figure 2B ,in Figure 2A A schematic diagram of a three-piece infrared single-wavelength projection lens set according to the second embodiment of the present invention is shown, Figure 2B From left to right are the curves of astigmatism and distortion aberration of the three-piece infrared single-wavelength projection lens set of the second embodiment. Depend on Figure 2AIt can be seen that the three-piece infrared single-wavelength projection lens assembly 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 an image source in sequence from the imaging side to the image source side. In the source surface 280, there are three lenses with refractive power in the three-piece infrared single-wavelength projection lens set. The aperture 200 is disposed in front of the image source side surface 212 of the first lens 210 .

[0101] The first lens 210 has...

no. 3 example

[0111] Please refer to Figure 3A and Figure 3B ,in Figure 3A A schematic diagram of a three-piece infrared single-wavelength projection lens set according to a third embodiment of the present invention is shown, Figure 3B From left to right are the curves of astigmatism and distortion aberration of the three-piece infrared single-wavelength projection lens set of the third embodiment. Depend on Figure 3A It can be seen that the three-piece infrared single-wavelength projection lens assembly 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 an image source in sequence from the imaging side to the image source side. In the source surface 380, there are two lenses with refractive power in the three-piece infrared single-wavelength projection lens set. The aperture 300 is disposed in front of the image source side surface 312 of the first lens 310 .

[0112] The first lens 310 has a po...

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Abstract

The present invention is a three-piece infrared single-wavelength projection lens set, which sequentially includes from the imaging side to the image source side: a first lens with positive refractive power; a second lens with refractive power; a third lens with positive refractive power. Positive refractive power; an aperture, arranged in front of the image source side surface of the first lens or between the image source side surface of the first lens and the image source side surface of the second lens; wherein the first lens or the second lens One of the lenses is made of glass. Thus, a three-piece infrared single-wavelength projection lens set with better image sensing function is realized.

Description

technical field [0001] The invention relates to a projection lens set, in particular to a miniaturized three-piece infrared single-wavelength projection lens set applied to electronic products. Background technique [0002] Today's digital imaging technology is constantly innovating and changing, especially digital carriers such as digital cameras and mobile phones are developing towards miniaturization, and photosensitive components such as CCD or CMOS are also required to be more miniaturized. In the application of infrared focusing lenses, in addition to being used in 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 a larger field of view. Wide-angle lenses are the mainstream. [0003] Among them, the applicant previously proposed a num...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/14G02B13/18G02B13/00G02B1/00
Inventor 蔡斐欣黄靖昀
Owner NEWMAX TECH
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