Optical system integrating reflection and transmission spectrum detection

Abstract

The utility model discloses an optical system integrating reflection and transmission spectrum detection, which relates to the technical field of spectrum detection, and comprises a shell, a reflection integrating sphere, a light source module, a light source module and a light source module, the cuvette bracket is arranged at the light inlet of the reflection integrating sphere and is used for mounting a cuvette; the light gathering cover is provided with a light gathering inlet and a light gathering outlet, the light gathering outlet is connected with the light inlet of the reflection integrating sphere, and the light gathering inlet is connected with the light outlet of the light source; the light source is arranged in the shell and used for generating test light, and a light outlet of the light source is connected with a light gathering inlet of the light gathering cover; the spectrograph is arranged in the shell, a spectrograph light inlet is formed in the spectrograph, and the spectrograph light inlet is connected with the light outlet of the reflection integrating sphere through an optical fiber; and a power supply. According to the utility model, the cuvette is arranged, so that the spectrum detection on liquid and solid substances can be realized, and the operation is convenient; the detection accuracy is high.

Description

Technical Field

[0001] The utility model relates to the technical field of spectral detection, and particularly relates to an optical system integrating reflection and transmission spectral detection. Background Art

[0002] Reflection and transmission spectral detection technologies have extensive applications in fields such as scientific research, industrial production, environmental protection, and food safety. With the progress of technology, these optical systems are becoming more and more efficient, accurate, and easy to operate. Reflection and transmission spectral detection are two widely used optical analysis technologies, which obtain information about the composition, structure, and properties of materials by analyzing the reflection or transmission characteristics of materials to light of specific wavelengths.

[0003] Reflection spectral detection mainly focuses on the optical properties of the material surface, while transmission spectral detection focuses more on the optical properties inside the material, such as absorption and scattering characteristics. Therefore, in system design, a reflection spectral detection system may include an integrating sphere to collect reflected light in all directions, while a transmission spectral detection system requires a sample cell or fixture to accurately maintain the sample position.

[0004] In the prior art, when it is necessary to perform reflection on solid substances, an optical instrument suitable for reflection spectral detection needs to be used. When it is necessary to perform spectral detection on materials such as liquids that have a transmission effect on light, an optical instrument suitable for transmission spectral detection needs to be used. Currently, the instruments for reflection spectral detection and transmission spectral detection are set separately. For spectral detection requirements with different needs, different instruments need to be used for detection, resulting in high costs and inconvenient operation. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to solve the deficiencies existing in the prior art and design an optical system integrating reflection and transmission spectral detection.

[0006] The technical solution adopted by the utility model to solve its technical problem is:

[0007] An optical system integrating reflection and transmission spectral detection, comprising:

[0008] A housing, on which a detection hole is provided;

[0009] A reflection integrating sphere, which is arranged at one end of the housing close to the detection hole, and the window to be measured of the reflection integrating sphere is attached to the detection hole; a reflection integrating sphere light inlet and a reflection integrating sphere light outlet are provided on the reflection integrating sphere;

[0010] The cuvette holder is arranged at the light inlet of the reflection integrating sphere and is used for installing the cuvette. The upper part of the cuvette holder extends to the outside of the housing, and a cover is arranged above the cuvette holder. A holder light inlet and a holder light outlet are arranged on the cuvette holder, and the holder light outlet is connected to the light inlet of the reflection integrating sphere;

[0011] The condenser cover is provided with a condenser inlet and a condenser outlet. The condenser outlet is connected to the light inlet of the reflection integrating sphere, the condenser inlet is connected to the light outlet of the light source, and the condenser outlet is connected to the holder light inlet;

[0012] The light source is arranged inside the housing and is used for generating test light. The light outlet of the light source is connected to the condenser inlet of the condenser cover;

[0013] The power supply is arranged inside the housing and is used for providing working power for the light source.

[0014] As a further technical solution of the present invention, a radiator is arranged on the outside of the condenser cover.

[0015] As a further technical solution of the present invention, it further includes: a lamp holder, the lamp holder is arranged inside the housing and is connected to the housing, and the light source is arranged on the lamp holder.

[0016] As a further technical solution of the present invention, the included angle between the light inlet of the reflection integrating sphere and the light outlet of the reflection integrating sphere is 90 degrees, and the measurement window of the reflection integrating sphere is arranged on the housing on the side opposite to the light inlet of the reflection integrating sphere.

[0017] As a further technical solution of the present invention, the included angle between the light inlet of the reflection integrating sphere and the horizontal plane is less than 10°.

[0018] As a further technical solution of the present invention, the included angle between the light inlet of the reflection integrating sphere and the horizontal plane is 8°.

[0019] As a further technical solution of the present invention, the housing is made of aluminum or aluminum alloy.

[0020] As a further technical solution of the present invention, the housing is made of engineering plastic.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention performs spectral detection on crops by setting up a reflection spectrum detection optical system, and can perform spectral detection on liquid and solid substances by setting up a cuvette, which is convenient to operate; the detection accuracy is high.

[0023] 2. Since the condenser cover focuses the light emitted by the light source, a large amount of heat energy will be generated. Therefore, a radiator is arranged on the outside of the condenser cover to dissipate the heat energy generated by the light source focusing, preventing the condenser cover from overheating and affecting the normal operation of the device.

[0024] 3. The outer shell is made of aluminum or engineering plastic, which is light in weight, realizes the lightweight of the reflection integrating sphere, and is convenient for use and installation. Brief Description of the Drawings

[0025] Figure 1 It is a structural diagram of an optical system for detecting reflection and transmission spectra proposed by the present utility model;

[0026] As shown in the figure:

[0027] 1 - Outer shell, 2 - Reflection integrating sphere, 3 - Cuvette holder, 4 - Condenser cover, 5 - Light source, 6 - Power supply, 7 - Spectrometer, 8 - Cuvette, 9 - Radiator;

[0028] 101 - Detection hole, 102 - Operation panel;

[0029] 201 - Window to be measured, 202 - Light inlet of the reflection integrating sphere, 203 - Light outlet of the reflection integrating sphere;

[0030] 301 - Cover body, 302 - Light inlet of the holder, 303 - Light outlet of the holder;

[0031] 401 - Condensing inlet, 402 - Condensing outlet;

[0032] 501 - Lamp holder, 701 - Light inlet of the spectrometer. Detailed Embodiment

[0033] The following describes the specific embodiments of the present utility model in conjunction with the drawings and embodiments:

[0034] It should be noted that the structures, colors, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the implementation conditions of the present utility model. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model.

[0035] At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present utility model. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope of implementation of the present utility model.

[0036] Such asFigure 1 As shown in the figure, the present utility model provides an optical system for collecting reflection and transmission spectra, comprising:

[0037] A housing 1, on which a detection hole 101 and an operation panel 102 are provided;

[0038] A reflection integrating sphere 2, disposed at one end of the housing 1 near the detection hole 101, and the measurement window 201 of the reflection integrating sphere 2 is fitted to the detection hole 101; a reflection integrating sphere light inlet 202 and a reflection integrating sphere light outlet 204 are provided on the reflection integrating sphere 2;

[0039] A cuvette holder 3, disposed at the reflection integrating sphere light inlet, for mounting a cuvette 8. The upper part of the cuvette holder 3 extends to the outside of the housing 1 and a cover 301 is provided above the cuvette holder 3. A holder light inlet 302 and a holder light outlet 303 are provided on the cuvette holder 3, and the holder light outlet 303 is connected to the reflection integrating sphere light inlet 202; by providing the cuvette holder, the cuvette to be measured can be installed in the cuvette holder to realize the spectral detection of the liquid.

[0040] A condenser hood 4, on which a condenser inlet 401 and a condenser outlet 402 are provided. The condenser outlet 402 is connected to the reflection integrating sphere light inlet 202, the condenser inlet 401 is connected to the light outlet of a light source 5, and the condenser outlet 402 is connected to the holder light inlet 302;

[0041] A light source 5, disposed inside the housing 1, for generating test light. The light outlet of the light source 5 is connected to the condenser inlet 401 of the condenser hood 4;

[0042] A power supply 6, disposed inside the housing 1, for providing a working power supply for the light source.

[0043] For the reflection spectrum detection optical system provided by the present utility model, the reflection integrating sphere, the light source and the spectrometer are centrally disposed inside the housing, with a compact structure, convenient to carry and use. When testing an article, the article to be measured is placed at the detection hole, the power supply is started, the light source is turned on, the light source is condensed by the condenser hood and the light is transmitted into the reflection integrating sphere through the condenser outlet. The article to be measured is subjected to light reflection by the reflection integrating sphere, and finally the reflected light is transmitted to the spectrometer through the reflection integrating sphere light outlet, and spectral analysis is performed by the spectrometer and displayed on the control panel.

[0044] The output end of the optical system is connected to a spectrometer. The spectrometer 7 is disposed inside the housing 1 for spectral testing of the reflected light received by the spectrometer 7. A spectrometer light inlet 701 is provided on the spectrometer 7, and the spectrometer light inlet 701 is connected to the reflection integrating sphere light outlet 204 through an optical fiber.

[0045] In the embodiment of the present utility model, when spectral detection of solid substances is required, an optical path channel is arranged inside the cuvette holder, that is, the cuvette holder inlet and the cuvette holder outlet are connected. The substance to be measured is placed at the window to be measured, and the light source is started to perform spectral detection on the substance to be measured through the reflection integrating sphere. The reflected spectral information is received and analyzed by the spectrometer, and is displayed on the display screen on the control panel; when spectral detection of liquid substances is required, a whiteboard is arranged at the window to be measured to seal the window to be measured. The cuvette is filled with the liquid substance to be measured, and the cuvette is placed in the cuvette holder. The light source enters the cuvette holder through the condenser cover, the light passes through the cuvette and enters the reflection integrating sphere, and the reflection integrating sphere reflects the transmitted light and enters the spectrometer to obtain the spectral information of the liquid substance to be measured, and is displayed through the control panel.

[0046] By arranging the cuvette holder, the present utility model can realize spectral detection of solids and liquids, is convenient to use, does not require different instrument devices for different solid and liquid substances, and has a wide range of applications.

[0047] Since a large amount of heat energy is generated when the condenser cover focuses the light emitted by the light source, a radiator 9 is arranged outside the condenser cover 4 to dissipate the heat energy generated by the light source focusing, so as to prevent the condenser cover from overheating and affecting the normal operation of the device.

[0048] In the embodiment of the present utility model, the light source 5 is fixed inside the housing through the lamp holder 501. The lamp holder 501 is arranged inside the housing and connected to the housing, and the light source 5 is arranged on the lamp holder 501.

[0049] The included angle between the light inlet of the reflection integrating sphere and the light outlet of the reflection integrating sphere is 90 degrees. The window to be measured of the reflection integrating sphere is arranged on the housing on the side opposite to the light inlet of the reflection integrating sphere. Among them, the included angle between the light inlet 202 of the reflection integrating sphere and the horizontal plane is less than 10°. Preferably, the included angle between the light inlet 202 of the reflection integrating sphere and the horizontal plane is 8°.

[0050] The housing of the present utility model is made of aluminum or engineering plastics, which is light in weight, realizes the lightweight of the reflection integrating sphere, and is convenient for use and installation.

[0051] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An optical system integrating reflection and transmission spectrum detection, characterized in that: include: A housing, wherein a detection hole is provided on the housing; A reflective integrating sphere is arranged inside the housing at one end close to the detection hole, and a window to be measured of the reflective integrating sphere is fitted with the detection hole; The reflecting integrating sphere is provided with a reflecting integrating sphere light inlet and a reflecting integrating sphere light outlet; A cuvette holder is arranged at the light inlet of the reflection integrating sphere and is used to install the cuvette. The upper part of the cuvette holder extends to the outside of the housing and a cover is arranged above the cuvette holder. The cuvette holder is provided with a holder light inlet and a holder light outlet, and the holder light outlet is connected to the light inlet of the reflection integrating sphere. A condenser, wherein a condenser entrance and a condenser exit are provided on the condenser, the condenser exit is connected to the light entrance of the reflective integrating sphere, the condenser entrance is connected to the light exit of the light source, and the condenser exit is connected to the light entrance of the bracket; A light source is arranged inside the housing and is used to generate test light, wherein a light outlet of the light source is connected to a light-collecting inlet of the light-collecting cover; The power supply is arranged inside the shell and is used to provide working power for the light source.

2. An optical system integrating reflection and transmission spectrum detection according to claim 1, characterized in that: A radiator is arranged outside the condenser.

3. The optical system integrating reflection and transmission spectrum detection according to claim 1, characterized in that: Also includes: A lamp holder is arranged inside the shell and connected to the shell, and the light source is arranged on the lamp holder.

4. The optical system integrating reflection and transmission spectrum detection according to claim 1, characterized in that: The light inlet and the light outlet of the reflecting integrating sphere are arranged on the same side of the reflecting integrating sphere, and the window to be measured of the reflecting integrating sphere is arranged on the housing on the side opposite to the light inlet of the reflecting integrating sphere.

5. The optical system integrating reflection and transmission spectrum detection according to claim 4, characterized in that: The angle between the light entrance of the reflective integrating sphere and the horizontal plane is less than 10°.

6. The optical system integrating reflection and transmission spectrum detection according to claim 5, characterized in that: The angle between the light entrance of the reflective integrating sphere and the horizontal plane is 8°.

7. The optical system integrating reflection and transmission spectrum detection according to claim 1, characterized in that: The shell is made of aluminum or aluminum alloy.

8. The optical system integrating reflection and transmission spectrum detection according to claim 1, characterized in that: The shell is made of engineering plastics.

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