Hyperspectral imaging device with indication light source

Abstract

The utility model discloses a hyperspectral imaging device with an indicating light source, which relates to the field of hyperspectral imaging devices, and comprises a camera, a hyperspectral module is arranged in the shooting direction of the camera, and a viewing lens is arranged on the hyperspectral module along the axis in the direction far away from the camera. A light beam refraction assembly is arranged between the hyperspectral module and the view finding lens, and an indicating light source and a light beam shaper are sequentially arranged on one side of the light beam refraction assembly in the light beam irradiation direction. And the imaging slits are parallel to the imaging slits of the hyperspectral module and coincide with each other in position. According to the utility model, the coaxial indication light source is arranged between the hyperspectral module and the view finding lens, and under the synergistic effect of the beam shaper, the coaxial optical splitter or the reflector, the line space position shot by the hyperspectral imaging system can be accurately indicated in real time, so that the time and the control operation are saved.

Description

Technical Field

[0001] The utility model relates to the field of hyperspectral imaging devices, in particular to a hyperspectral imaging device with an indicating light source. Background Art

[0002] Hyperspectral imaging technology is based on a large number of narrow-band image data technology. It combines imaging technology with spectral technology to detect the two-dimensional geometric space and one-dimensional spectral information of the target and obtain continuous, narrow-band image data with high spectral resolution.

[0003] Since hyperspectral imaging is a line push-broom imaging, it is generally impossible to directly know the shooting area or position, and it is necessary to use the push-broom imaging image to infer the approximate position. It is impossible to directly see the measured position, and use the push-broom imaging image to infer the approximate position of the shooting space. First, push-broom imaging takes a long time and needs to control the motion motor to move, which is relatively complicated.

[0004] In summary, during installation and debugging of the existing hyperspectral imaging device, the position and angle need to be adjusted according to the shooting position, which takes a long time and requires controlling the motion motor to move, which is relatively complicated. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a hyperspectral imaging device with an indicator light source to solve the technical problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hyperspectral imaging device with an indicator light source, comprising a camera, a hyperspectral module is arranged in the shooting direction of the camera, a viewfinder lens is arranged on the hyperspectral module along the axis in the direction away from the camera, a beam refraction component is arranged between the hyperspectral module and the viewfinder lens, and an indicator light source and a beam shaper are arranged in sequence on one side of the beam refraction component along the beam irradiation direction, and the light passing through the beam shaper is refracted by the beam refraction component and is parallel to the imaging slit of the hyperspectral module and the positions coincide with each other.

[0007] By adopting the above technical solution, a coaxial indicator light source is set between the hyperspectral module and the viewfinder lens. Under the coordinated action of the beam shaper, coaxial beam splitter or reflector, the line space position captured by the hyperspectral imaging system can be accurately indicated in real time, which saves time and control operations.

[0008] The utility model is further configured that the light beam refraction component includes a coaxial beam splitter, and the coaxial beam splitter is installed between the hyperspectral module and the viewfinder lens.

[0009] By adopting the above technical solution, the light beam passing through the beam shaper is parallel to the light-transmitting slit of the hyperspectral module and coincides with the position after being refracted by the coaxial beam splitter.

[0010] The utility model is further configured that the indicating light source is coaxial with the beam shaper, and the beam shaper is used to adjust the light shape of the indicating light source into a linear beam.

[0011] By adopting the above technical solution, the light beam shaped by the beam shaper is linear and can overlap with the light-transmitting slit of the hyperspectral module.

[0012] The utility model is further configured that a shutter is installed between the hyperspectral module and the coaxial beam splitter, when the indicator light source is not working, the shutter is located outside the light aperture of the hyperspectral module, when the indicator light source is working, the shutter is used to block the light aperture of the hyperspectral module, and the light beam passing through the beam shaper and then passing through the coaxial beam splitter is parallel to the imaging slit of the hyperspectral module and the positions coincide with each other.

[0013] By adopting the above technical solution, the shutter is located outside the light aperture of the hyperspectral module, and at this time, the indicating light source and the shutter are both inoperative.

[0014] The utility model is further configured that the light beam refraction component comprises a reflector, and the reflector is installed between the hyperspectral module and the viewfinder lens.

[0015] By adopting the above technical solution, the reflector is used to reflect the linear light beam emitted from the beam shaper to the viewfinder lens.

[0016] The utility model is further configured such that when the indicating light source is not working, the reflecting mirror is located outside the light aperture of the hyperspectral module; when the indicating light source is working, the reflecting mirror is arranged at an angle of forty-five degrees to the axis of the hyperspectral module; the light beam passing through the beam shaper is then reflected by the reflecting mirror and is parallel to the imaging slit of the hyperspectral module and their positions coincide with each other.

[0017] By adopting the above technical solution, when the indicator light source is not working, the reflector rotates to outside the light aperture of the hyperspectral module, and at this time, the indicator light source and the reflector are not working.

[0018] The utility model is further configured that the indicating light source includes an LED light source and a laser light source.

[0019] The above technical solution is used to indicate the line space position photographed by the hyperspectral module.

[0020] In summary, the utility model mainly has the following beneficial effects:

[0021] The utility model accurately and real - time indicates the line - space position captured by a hyperspectral imaging system by arranging a coaxial indicating light source between a hyperspectral module and a view - finding lens. Under the synergistic effect of a beam shaper, a coaxial beam splitter or a reflector, it saves both time and control operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the cooperation relationship of each component in the first embodiment of the utility model;

[0023] Figure 2 It is a schematic diagram of the cooperation relationship of the working states of each component in the first embodiment of the utility model;

[0024] Figure 3 It is a schematic diagram of the cooperation relationship of each component in the second embodiment of the utility model;

[0025] Figure 4 It is a schematic diagram of the cooperation relationship of the working states of each component in the second embodiment of the utility model.

[0026] In the figure: 1, camera; 2, hyperspectral module; 3, view - finding lens; 4, indicating light source; 5, beam shaper; 6, light shutter; 7, coaxial beam splitter; 8, reflector; 9, linear beam. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as limiting the present utility model.

[0028] Next, the embodiments of the present utility model will be described according to its overall structure.

[0029] Embodiment 1

[0030] A hyperspectral imaging device with an indicating light source, as Figure 1-2As shown, it includes a camera 1. Specifically, the camera 1 is a Mono camera. A hyperspectral module 2 is arranged in the shooting direction of the camera 1. The hyperspectral module 2 has an imaging slit along the axis direction. The hyperspectral module 2 is provided with a viewfinder lens 3 along the axis in the direction away from the camera 1. A beam refraction component is arranged between the hyperspectral module 2 and the viewfinder lens 3, and an indication light source 4 and a beam shaper 5 are sequentially arranged on one side of the beam refraction component along the beam irradiation direction. The light passing through the beam shaper 5 is refracted by the beam refraction component and is parallel to the imaging slit of the hyperspectral module 2 and the positions coincide with each other. The beam refraction component includes a coaxial beam splitter 7. The coaxial beam splitter 7 is installed between the hyperspectral module 2 and the viewfinder lens 3. The light beam passing through the beam shaper 5 is parallel to the light-transmitting slit of the hyperspectral module 2 and the positions coincide with each other after the light path is folded by the coaxial beam splitter 7, and then expanded to the shooting surface through the viewfinder lens 3 to form a linear beam 9.

[0031] See also Figure 2 The indicating light source 4 includes an LED light source and a laser light source. Specifically, the indicating light source 4 can also be other visible light to the naked eye. The visible light emitted by the indicating light source 4 passes through the beam shaper 5 and the beam refraction component and is emitted from the viewfinder lens 3 to indicate the line space position photographed by the hyperspectral module 2 at this time.

[0032] See also Figure 1-2 , the indicating light source 4 is coaxial with the beam shaper 5, and the beam shaper 5 is used to adjust the shape of the light of the indicating light source 4 into a linear beam. The light beam shaped by the beam shaper 5 is linear and can overlap with the light-transmitting slit of the hyperspectral module 2. A shutter 6 is installed between the hyperspectral module 2 and the coaxial beam splitter 7. When the indicating light source 4 is not working, the shutter 6 is located outside the light-transmitting aperture of the hyperspectral module 2. When the indicating light source 4 is working, the shutter 6 is used to block the light-transmitting aperture of the hyperspectral module 2. The light beam passing through the beam shaper 5 is parallel to the imaging slit of the hyperspectral module 2 and the positions overlap with each other after passing through the coaxial beam splitter 7. When the indicating light source 4 is working, the shutter 6 moves between the hyperspectral module 2 and the coaxial beam splitter 7. When the indicating light source 4 is not working, the shutter 6 is located outside the light-transmitting aperture of the hyperspectral module 2. At this time, the indicating light source 4 and the shutter 6 are both inoperative.

[0033] Embodiment 2

[0034] A hyperspectral imaging device with an indicator light source, such as Figure 3-4As shown, on the basis of the first embodiment, the difference from the first embodiment is that the light beam refraction component includes a reflector 8, and the reflector 8 is installed between the hyperspectral module 2 and the viewfinder lens 3. Specifically, in order to facilitate the change of position of the reflector 8, the reflector 8 is rotatably connected between the hyperspectral module 2 and the viewfinder lens 3. The reflector 8 is used to reflect the linear light beam emitted from the beam shaper 5 to the viewfinder lens 3. When the indicator light source 4 is not working, the reflector 8 is located outside the light aperture of the hyperspectral module 2. When the indicator light source 4 is working, the reflector 8 is set at a forty-five degree angle with the axis of the hyperspectral module 2. After the light beam passing through the beam shaper 5 is reflected by the reflector 8, it is parallel to the imaging slit of the hyperspectral module 2 and the positions coincide with each other. When the indicator light source 4 is not working, the reflector 8 is rotated to the outside of the light aperture of the hyperspectral module 2. At this time, the indicator light source 4 and the reflector 8 are not working.

[0035] The working principle of the utility model is as follows: when the spatial position of the shooting line of the hyperspectral module 2 needs to be indicated, the indicating light source 4 emits light, and the light is shaped by the beam shaper 5 to form a linear light beam. After the linear light beam is irradiated on the beam refraction component, it is parallel to the light-transmitting slit of the hyperspectral module 2 and the positions coincide with each other, and then passes through the viewfinder lens 3 below and is irradiated on the irradiation surface, forming a linear light beam 9 on the irradiation surface, which clearly and conveniently indicates the shooting line of the hyperspectral module 2.

[0036] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A hyperspectral imaging device with an indicator light source, comprising a camera (1), a hyperspectral module (2) being arranged in the shooting direction of the camera (1), and a viewfinder lens (3) being arranged along an axis in a direction away from the camera (1), characterized in that: A light beam refraction component is arranged between the hyperspectral module (2) and the viewfinder lens (3), and an indication light source (4) and a light beam shaper (5) are arranged in sequence on one side of the light beam refraction component along the light beam irradiation direction. Light passing through the light beam shaper (5) is refracted by the light beam refraction component and is parallel to the imaging slit of the hyperspectral module (2) and their positions overlap with each other.

2. The hyperspectral imaging device with an indicator light source according to claim 1, characterized in that: The light beam refraction component comprises a coaxial beam splitter (7), and the coaxial beam splitter (7) is installed between the hyperspectral module (2) and the viewfinder lens (3).

3. The hyperspectral imaging device with an indicator light source according to claim 1, characterized in that: The indicating light source (4) is coaxial with the light beam shaper (5), and the light beam shaper (5) is used to adjust the light shape of the indicating light source (4) into a linear light beam.

4. The hyperspectral imaging device with an indicator light source according to claim 2, characterized in that: A light shield (6) is installed between the hyperspectral module (2) and the coaxial beam splitter (7); when the indicator light source (4) is not working, the light shield (6) is located outside the light aperture of the hyperspectral module (2); when the indicator light source (4) is working, the light shield (6) is used to shield the light aperture of the hyperspectral module (2); the light beam passing through the beam shaper (5) and then passing through the coaxial beam splitter (7) is parallel to the imaging slit of the hyperspectral module (2) and their positions overlap with each other.

5. The hyperspectral imaging device with an indicator light source according to claim 1, characterized in that: The light beam refraction component comprises a reflector (8), and the reflector (8) is installed between the hyperspectral module (2) and the viewfinder lens (3).

6. The hyperspectral imaging device with an indicator light source according to claim 5, characterized in that: When the indicating light source (4) is not working, the reflecting mirror (8) is located outside the light aperture of the hyperspectral module (2); when the indicating light source (4) is working, the reflecting mirror (8) is arranged at an angle of forty-five degrees with the axis of the hyperspectral module (2); the light beam passing through the beam shaper (5) is then reflected by the reflecting mirror (8) and is parallel to the imaging slit of the hyperspectral module (2), and the positions thereof coincide with each other.

7. The hyperspectral imaging device with an indicator light source according to claim 1, characterized in that: The indicating light source (4) comprises an LED light source and a laser light source.

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