CN217643510U - Infrared camera based on polarization principle - Google Patents

Abstract

The utility model discloses an infrared camera based on polarization principle, the structure of whole device include the base, and the base is inside to be constituted by two infrared camera modules and polarization beam splitter prism, has the interface of the button of the various parameters of regulation camera and the camera power and the interface of connecting camera signal transmission on the left surface of base, just enables the normal work of camera through these buttons and interfaces. And the long lens barrel is connected with the base in a spiral rotating way. The lens cone is provided with a structure capable of adjusting the size of the aperture, a structure for manually adjusting the focal length of the camera and a clamping groove for conveniently fixing the camera on the industrial observation probe. The beneficial effects of the utility model are that a simple structure is provided, and convenient operation's infrared camera, can realize the direct display to the testing result through display device, made things convenient for user's observation to because simple structure the cost is reduced, can see through the condition that haze and steam observed the target site by camera polarization and infrared characteristic.

Description

Infrared camera based on polarization principle

Technical Field

The technology relates to the field of infrared cameras, in particular to an infrared camera based on a polarization principle

Background

The polarized optical imaging defogging technology accurately estimates the intensity of atmospheric light and subtracts the atmospheric light from a haze image by collecting different polarized images of the same scene, and then carries out inversion processing on degraded scene reflected light to finally obtain a defogged image. The polarization infrared camera detects infrared energy through non-contact and converts the infrared energy into an electric signal, and then generates a thermal image on the display, and the infrared camera can quantify the detected heat, not only can observe the thermal image, but also can accurately identify and strictly analyze a heating fault area, so that the polarization infrared camera is produced by combining polarization and a red camera. Due to the service environment of the secondary cooling chamber of the continuous casting machine and the characteristic of continuous movement of the continuous casting billet, the measurement of the surface temperature of the continuous casting billet is influenced by high-temperature water vapor and dust in the secondary cooling chamber. The strong absorption effect of water molecules on near-infrared wave bands also limits the infrared application range, and production personnel can not clearly observe the production condition of the continuous casting billet, so that the device is adopted to monitor a target scene to assist in measuring the surface temperature of the continuous casting billet. In addition, the technical device also has the advantages of high detail fidelity, high processing speed, low cost and the like.

Disclosure of Invention

Not enough to prior art, the utility model provides an infrared camera based on polarization principle has solved two cold rooms of conticaster because the production situation of continuous casting billet in two cold rooms of observation that the influence of high temperature steam and dust can not be clear.

The common camera cannot be effectively observed in the specific use process due to the influence of high-temperature water vapor and dust, and cannot correct the production condition of a target site in real time, so that the problem of production errors is caused.

For solving the above technical problem, the utility model discloses the technical scheme who adopts is: a polarized infrared camera for a continuous casting secondary cooling chamber comprises a base and a lens cone, wherein a shell of the base not only protects the camera, but also an operation interface of camera parameters and an interface of signal transmission are arranged on one side of the base, the other side of the base is connected with the lens cone, the base and the lens cone are connected through a spiral structure, and the lens cone is firmly fixed on the base. The camera and the polaroid are arranged in the base, the camera is two infrared camera modules, and the polaroid is a device capable of shielding and transmitting incident light. The lens barrel is provided with a lens group and is additionally provided with a 940nm filter to prevent infrared light with long wavelength from damaging a chip of the camera. And the lens cone is also provided with a manual focusing structure, a structure for adjusting the size of the aperture and a clamping groove structure. The focusing structure drives the lens group in the lens barrel to change the focal length by rotation, so that the focal length is changed. The aperture adjusting structure is a device for controlling the size of light to enter the camera through the lens cone. The clamping groove is used for fixing a camera.

Preferably, the polarization infrared camera comprises two infrared camera modules, a polaroid, a lens cone, a focusing device, an aperture adjusting device and a clamping groove, the camera is connected with a power supply and a signal transmission interface, and the camera is fixed through the clamping groove and is aligned with a monitoring target to adjust the focusing device and the aperture adjusting device of the camera, so that the camera can work.

Preferably, the camera can also change the distance of signal transmission according to the scene, because the camera does not display itself

The device, this just makes the observer can connect the long-distance observation production condition of extra display through the data line, has reduced the production risk.

The invention has the beneficial functions that:

1. the polarized infrared camera is simple in structure, low in cost and convenient to operate, is suitable for complex industrial production environments, can display monitored signals through a screen at a near place or a far place according to field conditions, and improves safety in production.

2. This polarization infrared camera, this patent mechanism is simple, and the volume ratio is smaller, conveniently is applied to and installs on the industry probe, and this patent is polarization infrared camera, can keep higher definition under the adverse conditions such as haze, water smoke. This camera possesses two camera modules, utilizes the polaroid, makes two camera modules accept the light of different polarization states, returns the display screen with signal transmission, obtains the image of two different polarization states of same environment, realizes getting rid of environmental factor such as steam, haze, waits to clear site environment image. And subsequently, a clearer picture can be obtained by adopting an image processing method for the obtained image.

The parts of the device not involved are the same as or can be realized by the prior art.

Drawings

Fig. 1 is a schematic external structural diagram of a polarization infrared camera according to the present invention;

FIG. 2 is a schematic diagram of an internal structure of a polarized infrared camera according to the present invention;

FIG. 3 is a schematic diagram of a left side structure of a base of a polarized infrared camera according to the present invention;

FIG. 4 is a schematic diagram of a right side structure of a base of a polarized infrared camera according to the present invention;

in the figure: 1 base, 2 base left surfaces, 3, base right flank, 4 lens barrels, 5 light ring structures, 6 draw-in grooves, 7 focus structures, 8 filters, 9 polarization beam splitter prisms, 10 camera modules, 11 camera modules, 12 camera power interfaces, 13 camera signal output ports, 14 camera parameter adjustment ports, 15 camera signal indicator lamps

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent disclosure, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements with similar functions throughout. The embodiments described below with reference to the drawings are intended to be illustrative of this patent only and should not be taken as limiting the patent.

In the description of this patent, it is to be understood that some of the terms "upper side," "lower side," "left side," "right side," "inner," "outer," "front," "rear," and the like are used in the orientations and positional relationships indicated in the figures, which are based on the orientation or positional relationship shown in the figures, for convenience in describing the patent and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-4, the polarization defogging camera includes a camera base 1 and a long lens barrel 4, the base 1 is used as a camera housing to protect the camera, the left side 2 of the camera base 1 is an important part of the camera, and there are a power interface 12 of the camera, a signal transmission interface 13 of the camera, a button 14 for adjusting parameters of the camera, and a camera work indicator 15.

The right side 3 of the base 1 is connected with the lens cone 4, and the two are connected through a spiral structure, so that the diversity of the lens cone 4 can be increased, and the camera can be applied to more scenes. The lens barrel 4 is provided with a lens group, and the surface of the lens barrel is provided with a device 5 for manually adjusting the aperture of the camera, a clamping groove 6 for facilitating the fixation of the camera and a focusing device 7 for manually adjusting the focal length of the camera.

The base 1 internally comprises a 940nm filter 8, so that the camera only receives light with the wavelength below 940nm, and a polarization beam splitter prism 9 is connected with the filter 8 and is used for respectively transmitting the received light to two infrared camera modules 10 and 11 according to the difference of polarization states, and then transmitting signals to a display device through a signal transmission interface 13 on the left side surface 2 of the camera.

Referring to fig. 1-4, in a target environment, an aperture structure 5 on a barrel 4 of a polarized infrared camera is first manually adjusted

And selecting a proper aperture, manually adjusting a focusing device 6 on the lens barrel 4, changing the position of a lens group in the lens barrel 4 to handover a proper camera focal length, and fixing the camera on the industrial probe through the clamping groove 6.

Whether the camera indicator light 15 is normal or not is observed by connecting the camera power supply interface 12 and the camera signal output port 13 on the left side surface of the base 1, and the production condition of a target site can be observed on a display screen by adjusting required parameters through the camera parameter button 14.

To sum up, this infrared camera of polarization, through the device that combines together two kinds of principles of polarization and infrared and make, the structure is comparatively simple, and the volume is less and the cost is not high, can install at multiple industry probe, and can be at haze, the clear on-the-spot signal of transmission out in the complex environment of steam, because base 1 and lens cone 4 are separable, can also change different lens groups according to the condition of target site afterwards, can also change the distance of received signal according to the length of the condition passing signal line on-the-spot in addition.

The above description is only exemplary, suitable embodiments of the present invention are only examples, and not intended to limit the present invention, and any person skilled in the art should be able to cover the technical scope of the present invention, the technical solutions according to the present invention and the inventive concept thereof, and equivalent alternatives or modifications should be included in the scope of the present invention.

Claims (2)

1. An infrared camera based on a polarization principle comprises a camera base (1) and is characterized in that a shell (2) on the left side of the bottom of the base is provided with a button (14) for adjusting camera parameters, a camera power interface (12) and a camera signal output port (13), a shell (3) on the right side of the camera base (1) is connected with a lens cone (4) through a threaded structure, a lens group is arranged in the lens cone (4), and the lens cone (4) is provided with a clamping groove (6) for adjusting a camera aperture (5) and a camera focal length (7) and fixing the camera on a probe; the camera base (1) comprises a 940nm filter (8) inside, and a polarization beam splitter prism (9) is connected with the filter (8).

2. An infrared camera based on polarization principle as claimed in claim 1, characterized in that the polarization and infrared structures are installed in the camera base (1), and the image taken by the camera is transmitted to the display by connecting the data line through the camera signal output port (13).

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