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Infrared imaging optical device

An optical device, infrared imaging technology, applied in optics, optical components, instruments, etc., can solve the problem that photos do not have the characteristics of depth perception, and achieve the effect of less visible light interference, low production cost, and clear infrared imaging

Inactive Publication Date: 2020-04-17
广东省星聚宇光学股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the field of image capture, photos taken by existing camera devices at night, even if the night mode is turned on, the photos taken do not have the characteristics of depth perception

Method used

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  • Infrared imaging optical device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] refer to figure 1 , the present invention discloses an infrared imaging optical device, which sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4 and a filter L5 from the object side to the image side on the optical axis. The first lens L1 has an object side S1 and an image side S2, the second lens L2 has an object side S3 and an image side S4, the third lens L3 has an object side S5 and an image side S6, and the fourth lens L4 has an object side S7 and an image side S8, the filter L5 has two planes S9 and S10, wherein S9 is adjacent to the image side S8.

[0046] On the first lens L1, a diaphragm STO is provided to adjust the amount of incoming light. The luminescent light source from the object passes through the surfaces S1-S10 in sequence, and is finally imaged on the imaging surface S11.

[0047] Table 1 and Table 2 show the surfaces of the first lens L1, the second lens L2, the third lens L3 and the fourth lens L4, the opti...

Embodiment 2

[0062] refer to Figure 5 , the present invention discloses an infrared imaging optical device, which sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4 and a filter L5 from the object side to the image side on the optical axis. The first lens L1 has an object side S1 and an image side S2, the second lens L2 has an object side S3 and an image side S4, the third lens L3 has an object side S5 and an image side S6, and the fourth lens L4 has an object side S7 and an image side S8, the filter L5 has two planes S9 and S10, wherein S9 is adjacent to the image side S8.

[0063] On the first lens L1, a diaphragm STO is provided to adjust the amount of incoming light. The luminescent light source from the object passes through S1-S10 in sequence, and is finally imaged on the imaging plane S11.

[0064] Table 3 and Table 4 show the surfaces of the surfaces of the first lens L1, the second lens L2, the third lens L3 and the fourth lens L4, the op...

Embodiment 3

[0073] refer to Figure 9 , the present invention discloses an infrared imaging optical device, which sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4 and a filter L5 from the object side to the image side on the optical axis. The first lens L1 has an object side S1 and an image side S2, the second lens L2 has an object side S3 and an image side S4, the third lens L3 has an object side S5 and an image side S6, and the fourth lens L4 has an object side S7 and an image side S8, the filter L5 has two planes S9 and S10, wherein S9 is adjacent to the image side S8.

[0074] On the first lens L1, a diaphragm STO is provided to adjust the amount of incoming light. The luminescent light source from the object passes through the surfaces S1-S10 in sequence, and is finally imaged on the imaging surface S11.

[0075] Table 5 and Table 6 show the surfaces of the first lens L1, the second lens L2, the third lens L3 and the fourth lens L4, the opt...

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Abstract

The invention discloses an infrared imaging optical device. The infrared imaging optical device sequentially comprises a first lens, a second lens, a third lens, a fourth lens and an optical filter from an object side to an image side in the optical axis; the total focal length of the first lens, the second lens, the third lens and the fourth lens is f; the focal length of the second lens is f2; and 3<f2 / f<7. According to the invention, infrared imaging and depth sensing functions are realized; the infrared optical imaging device has the advantages of high imaging quality, low production costand the like; meanwhile, at least one of the four lenses is a lens made of a filterable visible light material, the lens can filter most visible light, and the optical filter is used behind the four lenses, so that infrared imaging is clearer, less interfered by the visible light and high in imaging quality.

Description

technical field [0001] The invention belongs to the field of optical lenses, and in particular relates to an infrared imaging optical device used in mobile phones and other image capturing devices. Background technique [0002] Infrared imaging technology is a promising high-tech. Electromagnetic waves longer than 0.78 microns are located outside the red of the visible light spectrum, called infrared rays, also known as infrared radiation. It refers to electromagnetic waves with a wavelength of 0.78-1000 microns, of which the part with a wavelength of 0.78-2.0 microns is called near-infrared, and the part with a wavelength of 2.0-1000 microns is called thermal infrared. In nature, all objects can radiate infrared rays, so the infrared image formed by different thermal infrared rays can be obtained by using the detector to measure the infrared difference between the target itself and the background. At present, in the field of image capture, photos taken at night by existin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/14
CPCG02B13/0015G02B13/0055G02B13/008G02B13/14
Inventor 王锋周明明马庆鸿万良伟
Owner 广东省星聚宇光学股份有限公司