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Infrared detection device

A detection device, infrared technology, applied in the direction of measuring devices, optical device exploration, electric radiation detectors, etc., can solve the problems of image stripes or jagged, image noise, etc., to achieve the effect of suppressing image distortion

Active Publication Date: 2021-06-01
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Furthermore, when a thermal image is obtained by an infrared sensor, there is also the following problem: when a thermal image with image distortion caused by an optical system is obtained, image noise such as streaks or jagged images will appear in the super-resolution image

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0125] [Structure of infrared detection device]

[0126] Hereinafter, an infrared detection device according to Embodiment 1 will be described with reference to the drawings.

[0127] figure 1 It is a figure which shows an example of the structure of the infrared detection apparatus of Embodiment 1. figure 2 It is a schematic diagram of the physical structure when the infrared detection device of this embodiment is mounted in a housing|casing. image 3 It is a figure which shows the state where the housing|casing mounted with the infrared detection device of this embodiment is installed. Figure 4 It is a figure which shows the physical structure of the infrared detection apparatus of this embodiment.

[0128] Such as image 3As shown, the infrared detection device 1 is installed on the frame body 2 to obtain a thermal image of the detection object range. The frame body 2 is installed on the installation surface 41 approximately perpendicular to the bottom surface 42 of t...

Embodiment approach 2

[0151] In Embodiment 1, it has been described that the distortion correction process is performed on the distortion of the thermal image output by the infrared sensor 102 by the control processing unit 12 , but the present invention is not limited thereto. By considering the inclination of one or more infrared detection elements constituting the infrared sensor 102 with respect to the scanning rotation axis S1 , it is unnecessary to perform distortion correction processing in the control processing unit 12 . This case will be described below.

[0152] Figure 6 It is a figure for explaining that distortion occurs in the thermal image scanned by the infrared sensor of Embodiment 1.

[0153] When the infrared sensor 102 rotates around the scanning rotation axis S1 , the rotational speeds (rotation pitch) of the upper end and the lower end of the infrared sensor 102 viewed from the bottom surface 42 are different. For example, it is assumed that the infrared sensor 102 is compo...

Deformed example 1

[0175] Figure 10 It is a figure which shows an example of the structure of the infrared sensor of the modification 1 of Embodiment 2.

[0176] exist Figure 9 In the infrared sensor 202b shown, the case where the interval between adjacent columns, that is, the center and pitch of corresponding infrared detection elements in adjacent columns are constant, has been described, but the present invention is not limited thereto. Such as Figure 10 As shown in the infrared sensor 202c, the centers and pitches of the corresponding infrared detection elements in adjacent columns may also be formed to be narrower as they get closer to the bottom surface 42 . That is, it can also be: Figure 10 In the shown infrared sensor 202c, a plurality of infrared detection elements are arranged in three or more rows, and the width of each of the plurality of infrared detection elements in each row of the arrangement is substantially parallel to the bottom surface 42. The position of each of th...

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Abstract

Provided is an infrared detection device capable of suppressing the influence of image distortion caused by an optical system. Equipped with: a lens that transmits infrared light; and an infrared sensor that has infrared detection elements arranged in two or more rows, and scans the detection target range by rotating around a scanning rotation axis that passes through a part of the lens, and outputs an indication The output signal of the thermal image of the detection object range, at least two infrared detection elements of the infrared sensor are arranged at positions offset from the scanning rotation axis, and the image in the scanning direction of the infrared detection elements arranged in two or more columns The number of the first infrared detection elements whose half width of the point intensity distribution is smaller than the half width of the image point intensity distribution in the direction of the scanning rotation axis is more than the number of image points in the scanning direction in the infrared detection elements arranged in two or more columns The number of second infrared detection elements whose half width of the intensity distribution is larger than the half width of the pixel intensity distribution in the direction of the scanning rotation axis.

Description

technical field [0001] The present invention relates to an infrared detection device capable of detecting infrared rays. Background technique [0002] A technique of mounting an infrared sensor on an air conditioner such as a room air conditioner and performing air conditioning using two-dimensional thermal image data obtained by the infrared sensor has been proposed (for example, Patent Document 1). [0003] Patent Document 1 discloses a technique in which infrared sensors in which light receiving elements are arranged vertically in a row are mounted on an air conditioner installed at a height of 1800 mm from the floor of a room. [0004] prior art literature [0005] Patent Document 1: Japanese Patent No. 5111417 [0006] Patent Document 2: Japanese Patent Laid-Open No. 2011-174762 Contents of the invention [0007] (problem to be solved by the invention) [0008] However, in the technology disclosed in Patent Document 1, since the infrared sensor is installed at a p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J5/10G01V8/20
CPCG01J5/10G01V8/20G01J5/0025G01J5/047G01J5/0806G01J5/07G01J5/28
Inventor 楠龟弘一米田亚旗N·塞拉万
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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