Mid-infrared light source adjusting device

Abstract

The utility model provides a mid-infrared light source adjusting device, which comprises a support, a laser transmitter, a mid-infrared light source, a dichroscope and a photoelectric detector, and is characterized in that the dichroscope is obliquely arranged at the bottom of the support; visible light emitted by the laser emitter is transmitted by the dichroscope and then points to the photoelectric detector; the mid-infrared light source is arranged above the dichroscope, the mid-infrared light source points to the photoelectric detector after being reflected by the dichroscope, and the visible light, the optical axis of the mid-infrared light source and the axis of the light source detector are located on the same adjusting plane. According to the embodiment, the mid-infrared light source is adjusted in the adjusting plane, so that the detection value of the photoelectric detector is maximum, and finally, the laser transmitter is adjusted, so that the visible light is projected to the central position of the photoelectric detector. After adjustment is completed, the laser transmitter and the mid-infrared light source are fixed; in the using process, under the guidance of visible light, light path adjustment of the mid-infrared light source is achieved by adjusting the angle of the support.

Description

TECHNICAL FIELD

[0001] The utility model relates to light source adjustment technical field especially is concerned with a kind of middle infrared light source adjusting device. BACKGROUND

[0002] Current middle infrared light source has been widely applied in detection industry, for example, infrared absorption method detects carbon dioxide concentration and the application of infrared absorption method to object surface oil film thickness detection.

[0003] For middle infrared light source, main emission wavelength is in the range of 2~10 μm, which is invisible to human eye. The existing equipment that can detect middle infrared light has the problems of high price and non-portable operation.

[0004] Therefore, in the use of middle infrared light, there is a problem that it is difficult to adjust the optical path and observe the irradiation position of the light source. SUMMARY

[0005] The summary portion of the utility model is used to introduce the concept in a simple form, which will be described in detail in the following specific embodiment portion. The summary portion of the present disclosure is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0006] The utility model provides a kind of middle infrared light source adjusting device to solve the technical problems mentioned in the above background art portion.

[0007] The middle infrared light source adjusting device includes support, laser emitter installed to the support, middle infrared light source, dichroic mirror and photoelectric detector arranged to the side of support, wherein,

[0008] The dichroic mirror is obliquely arranged to the bottom of support;

[0009] The laser emitter is arranged to the side of dichroic mirror away from photoelectric detector, and the visible light emitted by the laser emitter is directed to photoelectric detector after being transmitted by dichroic mirror;

[0010] The middle infrared light source is arranged above the dichroic mirror, and the middle infrared light source is directed to photoelectric detector after being reflected by dichroic mirror, wherein the optical axis of visible light and middle infrared light source and the axis of light source detector are located in the same adjustment plane;

[0011] During adjustment, the middle infrared light source is adjusted in the adjustment plane so that the detection value of photoelectric detector is maximum, and finally the laser emitter is adjusted so that the visible light is projected to the center position of photoelectric detector;

[0012] After the adjustment is completed, the laser emitter and the mid-infrared light source are fixed; during use, the light path of the mid-infrared light source is adjusted by adjusting the angle of the support under the guidance of the visible light.

[0013] Optionally, the axis of the visible light and the light source detector coincide.

[0014] Optionally, in the adjusted state, the optical axis of the reflected mid-infrared light source coincides with the optical axis of the visible light.

[0015] Optionally, the laser emitter is a laser diode.

[0016] Optionally, the device further comprises a first adjusting frame connected with the support for adjusting the laser emitter.

[0017] Optionally, the device further comprises a second adjusting frame connected with the support for adjusting the mid-infrared light source.

[0018] Optionally, the dichroic mirror is arranged at an angle of 45° towards the laser emitter.

[0019] Optionally, the device further comprises a fixing frame connected with the support for bearing the dichroic mirror.

[0020] The above embodiments of the utility model have the following beneficial effects: the mid-infrared light source adjusting device of some embodiments of the utility model can display the light path of the mid-infrared light source through the light path of the visible light, and compared with the related equipment for detecting mid-infrared light, the device has lower manufacturing cost and simple structure and is convenient to carry.

[0021] Specifically, the visible light and the mid-infrared light source with different optical axes are adjusted to point to the photodetector through the dichroic mirror. The detection value of the photodetector is maximized by adjusting the mid-infrared light source, which represents that the mid-infrared light source is projected to the center position of the photodetector. Finally, the laser emitter is adjusted to project the visible light to the center position of the photodetector, at this time, the light path of the visible light coincides with the optical axis of the reflected mid-infrared light source.

[0022] After the adjustment is completed, the laser emitter and the mid-infrared light source are fixed by bonding or screwing or the like. During use, the support, the laser emitter, the mid-infrared light source and the dichroic mirror are taken as a whole. Under the guidance of the light path of the visible light of the laser emitter, the angle of the support is adjusted, when the visible light is irradiated to the required position, the mid-infrared light source can also irradiate to the position, so that the application of the mid-infrared light source is more simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0024] Figure 1 The structural schematic diagram of an embodiment of the mid-infrared light source adjusting device of the present application.

[0025] Explanation of reference signs:

[0026] 1, support; 2, laser emitter; 3, mid-infrared light source; 4, dichroic mirror; 5, photodetector. DETAILED DESCRIPTION

[0027] The technical solutions of the present application will be described below in conjunction with the embodiments, obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0029] In addition, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" are used only for descriptive purposes and are not to be construed as indicating or implying relative importance or an indicated number of technical features. Thus, features defined with "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" can explicitly or implicitly include one or more of the features. In the description of the present application, "a plurality of" means two or more, unless otherwise expressly and specifically limited. In addition, the terms "mounting", "connected", "connecting" should be interpreted broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0031] Please refer to Figure 1 , Figure 1 is a structural schematic view of an embodiment of the mid-infrared light source adjusting device. As shown in Figure 1 , the mid-infrared light source adjusting device includes a bracket 1, a laser emitter 2, a mid-infrared light source 3, a dichroic mirror 4 and a photodetector 5. The laser emitter 2, the mid-infrared light source 3 and the dichroic mirror 4 are mounted in the bracket 1, and the photodetector 5 is arranged to the left side of the bracket 1 (the direction in Figure 1 ).

[0032] The dichroic mirror 4 is obliquely arranged to the bottom of the bracket 1 towards the right side (the direction in Figure 1 ), and the inclination angle of the dichroic mirror 4 can be 45° as an example. The laser emitter 2 is arranged to the right side of the bracket 1. As an example, the laser emitter can be a laser diode. When the laser emitter 2 is turned on, the emitted visible light is projected by the dichroic mirror 4 and directed to the photodetector 5. Further, the orientation of the photodetector 5 can be set such that its axis coincides with the optical axis of the visible light, i.e. the visible light is projected to the center position of the photodetector 5.

[0033] The above-mentioned mid-infrared light source 3 is arranged above the dichroic mirror 4, and the mid-infrared light source 3 is directed to the photodetector 5 after being reflected by the dichroic mirror 4. The optical axis of the above-mentioned visible light, the mid-infrared light source 3 and the axis of the light source detector can be located in the same adjustment plane. As an example, the above-mentioned mid-infrared light source 3 can be generated by an infrared emitter with model HIS550R-A.

[0034] The above-mentioned dichroic mirror 4 can be connected with the bracket 1 through a fixing frame. The laser emitter 2 can be placed on a first adjusting frame connected with the bracket 1, and the first adjusting frame can swing the laser emitter 2 up and down in the adjustment plane.Figure 1 The second adjusting frame can swing the middle infrared light source 3 left and right in the adjusting plane (the direction in the plane) to realize the adjusting operation. Figure 1 The second adjusting frame can swing the middle infrared light source 3 left and right in the adjusting plane (the direction in the plane) to realize the adjusting operation.

[0035] In the adjusting process, first, the middle infrared light source 3 is adjusted by the second adjusting frame until the detection value of the photodetector 5 reaches the maximum, which indicates that the reflected middle infrared light source 3 can project to the center position of the photodetector 5, and then the second adjusting frame is fixed. Finally, it is checked whether the visible light projects to the center position of the photodetector 5, if not, it indicates that the laser emitter 2 has deviated. The laser emitter 2 is adjusted by the first adjusting frame so that the visible light projects to the center position of the photodetector 5. In this way, the optical axis of the visible light coincides with the optical axis of the reflected middle infrared light source 3, and the optical path of the visible light can be used to display the optical path of the middle infrared light source 3.

[0036] In actual use, the support 1, the laser emitter 2, the middle infrared light source 3 and the dichroic mirror 4 can be used as a whole. Since the optical path of the visible light can be used to determine the optical path of the middle infrared light source 3, under the guidance of the optical path of the visible light, the angle of the support 1 is adjusted, and when the visible light irradiates to the required position, the middle infrared light source can also irradiate to the above position. Compared with the related devices for detecting middle infrared light, it is convenient to install, and it is more convenient and efficient when adjusting the optical path.

[0037] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A mid-infrared light source conditioning device, characterized by, The device comprises a support, a laser emitter mounted to the support, a mid-infrared light source, a dichroic mirror, and a photodetector arranged to one side of the support, wherein The dichroic mirror is arranged obliquely to the bottom of the support; The laser emitter is arranged to the side of the dichroic mirror facing away from the photodetector, and the visible light emitted by the laser emitter is directed to the photodetector after being transmitted by the dichroic mirror; The mid-infrared light source is arranged above the dichroic mirror, and the mid-infrared light is directed to the photodetector after being reflected by the dichroic mirror, wherein the optical axis of the visible light and the mid-infrared light source and the axis of the photodetector are located in the same adjustment plane; During adjustment, the mid-infrared light source is adjusted in the adjustment plane so that the detection value of the photodetector is maximum, and finally the laser emitter is adjusted so that the visible light is projected to the center position of the photodetector After adjustment is completed, the laser emitter and the mid-infrared light source are fixed, and during use, the angle of the support is adjusted to realize the optical path adjustment of the mid-infrared light source under the guidance of the visible light.

2. The mid-infrared light source conditioning device of claim 1, wherein, The axis of the visible light and the photodetector coincide.

3. The mid-infrared light source conditioning device of claim 2, wherein, In the adjusted state, the optical axis of the reflected mid-infrared light source coincides with the optical axis of the visible light.

4. The mid-infrared light source conditioning apparatus of claim 1, wherein, The laser emitter is a laser diode.

5. The mid-infrared light source conditioning apparatus of claim 1, wherein, The device further comprises a first adjusting frame connected to the support for adjusting the laser emitter.

6. The mid-infrared light source conditioning apparatus of claim 1, wherein, The device further comprises a second adjusting frame connected to the support for adjusting the mid-infrared light source.

7. The mid-infrared light source conditioning apparatus of claim 1, wherein The dichroic mirror is arranged 45° towards the laser emitter.

8. The mid-infrared light source conditioning apparatus of claim 1, wherein, The device further comprises a fixing frame connected to the support for bearing the dichroic mirror.

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