Reflection integrating sphere

Abstract

The utility model discloses a reflection integrating sphere, which relates to the technical field of spectrum detection and comprises a shell, a reflection integrating sphere is arranged in the shell, a light inlet, a light outlet and a window to be detected are arranged on the shell, the light inlet is communicated with the reflection integrating sphere through a light inlet channel, the window to be detected is communicated with the reflection integrating sphere through a channel to be detected, and the light outlet is communicated with the reflection integrating sphere through a light outlet channel. The light outlet is communicated with the reflection integrating sphere through a light outlet channel; the light inlet and the light outlet are arranged on the same side of the shell, the window to be detected is arranged on one side of the shell corresponding to the light inlet, and the light inlet and the light outlet are respectively provided with a first optical fiber connecting piece and a second optical fiber connecting piece. According to the reflection integrating sphere structure provided by the utility model, the light inlet and the light outlet are arranged on the same side of the shell, so that a spectrum detector of a light source can be arranged on the same side, and the reflection integrating sphere structure is compact in structure, small in size and suitable for being installed at different positions.

Description

Technical Field

[0001] The utility model relates to the technical field of spectrum detection, in particular to a reflection integrating sphere. Background Art

[0002] The integrating sphere is a hollow sphere with a white diffuse reflective material on the inner wall, also known as a photometric sphere, a light flux sphere, etc. One or more windows are opened on the sphere wall, which are used as light inlet holes and receiving holes for placing light receiving devices. The inner wall of the integrating sphere should be a good spherical surface, and it is usually required that its deviation from the ideal spherical surface should not be greater than 0.2% of the inner diameter. The inner wall of the sphere is coated with an ideal diffuse reflective material, that is, a material with a diffuse reflectance close to 1. The commonly used materials are magnesium oxide or barium sulfate, which is mixed evenly with a colloid adhesive and sprayed on the inner wall. The spectral reflectance of the magnesium oxide coating in the visible spectrum range is above 99%. In this way, the light entering the integrating sphere is reflected multiple times by the inner wall coating to form a uniformity on the inner wall. In order to obtain higher measurement accuracy, the opening ratio of the integrating sphere should be as small as possible. Diffuse reflection is the main measurement method for near-infrared spectroscopy. The integrating sphere is a hollow sphere with a highly reflective inner surface. The diffuse reflection integrating sphere measurement system has high accuracy, sensitivity and precision in the detection results of non-uniformity test samples, and can ensure good model transfer effect for such samples.

[0003] At present, the integrating sphere detection device adopts a configuration in which the light inlet and the light outlet are arranged at right angles, which is difficult to install in locations with limited installation space and is very inconvenient to use. Utility Model Content

[0004] The technical problem to be solved by the utility model is to solve the deficiencies in the prior art and design a reflection integrating sphere.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A reflection integrating sphere, comprising:

[0007] A shell, a reflection integrating sphere is arranged inside the shell, a light inlet, a light outlet and a window to be measured are arranged on the shell, the light inlet is connected with the reflection integrating sphere through a light inlet channel, the window to be measured is connected with the reflection integrating sphere through the channel to be measured, and the light outlet is connected with the reflection integrating sphere through the light outlet channel; the light inlet and the light outlet are arranged on the same side of the shell, the window to be measured is arranged on the side of the shell corresponding to the light inlet, and a first optical fiber connector and a second optical fiber connector are respectively arranged at the light inlet and the light outlet.

[0008] As a further technical solution of the utility model, the shell includes a first shell and a second shell, and the first shell and the second shell are buckled and fixed by bolts.

[0009] As a further technical solution of the utility model, a cylindrical cavity for installing a reflective integrating sphere is arranged inside the first shell, and supporting clamps for supporting the cylindrical cavity are arranged around the cylindrical cavity, and the four corners of the supporting clamps are hollow structures.

[0010] As a further technical solution of the present invention, the first shell and the second shell are made of aluminum or aluminum alloy.

[0011] As a further technical solution of the utility model, the first shell and the second shell are made of engineering plastics.

[0012] As a further technical solution of the present invention, the angle between the light entrance and the horizontal plane is less than 10°.

[0013] As a further technical solution of the utility model, the angle between the light entrance and the horizontal plane is 8°.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The reflective integrating sphere structure provided by the utility model sets the light inlet and the light outlet on the same side of the shell, so that the spectrum detector of the light source can be set on the same side, which has a small volume and solves the problem of occupying a large volume when the light inlet and the light outlet are set at right angles. The light inlet is connected to the light source through a first optical fiber connector, and enters the reflective integrating sphere through a light input channel to perform spectrum detection on the product to be tested set in the test window, and then sends the reflected spectrum to the spectrum detector through the light outlet for spectrum analysis. The reflective integrating sphere of the utility model has a compact structure and a small volume and can be installed in different positions.

[0016] 2. The reflection integrating sphere is arranged in the cylindrical cavity. The outer side of the cylindrical cavity is connected to the first shell through a support clamp to play a supporting and fixing role. The four corners of the support clamp are hollow structures to reduce the mass of the support clamp and make the first shell lightweight.

[0017] 3. In order to better perform spectrum detection, the angle between the light entrance 3 and the horizontal plane is 8°.

[0018] 4. The utility model provides a reflective integrating sphere, in which the light inlet and the light outlet are arranged on the same side, and the wiring terminals of the light inlet and the light outlet are on the same side, which saves the space occupied by the reflective integrating sphere. The outer shell is made of aluminum or engineering plastic, which is light in weight, thereby realizing lightweight reflective integrating sphere and facilitating use and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A stereogram of a reflective integrating sphere proposed by the utility model;

[0020] Figure 2A cross-sectional view of a reflection integrating sphere proposed by the utility model;

[0021] Figure 3 This is a bottom view of a reflective integrating sphere proposed by the utility model;

[0022] Figure 4 A top view of a reflective integrating sphere proposed by the utility model;

[0023] Figure 5 This is a front view of a reflective integrating sphere proposed by the utility model;

[0024] As shown in the figure:

[0025] 1-housing, 2-reflection integrating sphere, 3-light inlet, 4-light outlet, 5-test window, 6-first optical fiber connector, 7-second optical fiber connector;

[0026] 101 - first shell, 102 - second shell, 103 - supporting card. DETAILED DESCRIPTION

[0027] The following describes the specific implementation of the utility model in conjunction with the accompanying drawings and embodiments:

[0028] It should be noted that the structures, colors, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0029] 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 the implementation of the present utility model. Changes or adjustments to their relative relationships should be regarded as the scope of the implementation of the present utility model without substantially changing the technical content.

[0030] like Figures 1 to 5 As shown, the utility model provides a reflection integrating sphere, comprising:

[0031] A shell 1, wherein a reflection integrating sphere 2 is arranged inside the shell 1, a light inlet 3, a light outlet 4 and a window to be measured 5 are arranged on the shell 1, the light inlet 3 is connected with the reflection integrating sphere 2 through a light inlet channel, the window to be measured 5 is connected with the reflection integrating sphere 2 through a channel to be measured, and the light outlet 4 is connected with the reflection integrating sphere 2 through a light outlet channel; the light inlet 3 and the light outlet 4 are arranged on the same side of the shell 1, the window to be measured 5 is arranged on a side of the shell 1 corresponding to the light inlet 3, and a first optical fiber connector 6 and a second optical fiber connector 7 are respectively arranged at the light inlet 3 and the light outlet 4.

[0032] The reflective integrating sphere structure provided by the utility model sets the light inlet and the light outlet on the same side of the shell, so that the spectrum detector of the light source can be set on the same side, which has a small volume and solves the problem of occupying a large volume when the light inlet and the light outlet are set at right angles. The light inlet is connected to the light source through a first optical fiber connector, enters the reflective integrating sphere through a light inlet channel, performs spectrum detection on the product to be tested set in the test window, and then sends the reflected spectrum to the spectrum detector through the light outlet for spectrum analysis. The reflective integrating sphere of the utility model has a compact structure and a small volume and can be suitable for installation in different positions.

[0033] In the embodiment of the utility model, the housing 1 includes a first housing 101 and a second housing 102 , and the first housing 101 and the second housing 102 are buckled and fixed by bolts.

[0034] A cylindrical cavity for installing the reflective integrating sphere is arranged inside the first housing 101 , and a supporting fixture 103 for supporting the cylindrical cavity is arranged around the cylindrical cavity, and the four corners of the supporting fixture are hollow structures.

[0035] The reflection integrating sphere is arranged in the cylindrical cavity, and the outer side of the cylindrical cavity is connected to the first shell through a support clamp to play a supporting and fixing role. The four corners of the support clamp are hollow structures to reduce the mass of the support clamp, making the first shell lightweight. The first shell 101 and the second shell 102 are made of aluminum or aluminum alloy. The first shell 101 and the second shell 102 can also be made of engineering plastics, which are light in weight and reduce the weight of the reflection integrating sphere detection device.

[0036] In order to better perform spectrum detection, the angle between the light entrance 3 and the horizontal plane is less than 10°. Preferably, the angle between the light entrance 3 and the horizontal plane is 8°.

[0037] The utility model provides a reflective integrating sphere, in which a light inlet and a light outlet are arranged on the same side, and the wiring terminals of the light inlet and the light outlet are on the same side, thereby saving space occupied by the reflective integrating sphere. The outer shell is made of aluminum or engineering plastic, which is light in weight, thereby realizing lightweight reflective integrating sphere and facilitating use and installation.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A reflecting integrating sphere, characterized in that: include: A shell, a reflection integrating sphere is arranged inside the shell, a light inlet, a light outlet and a window to be measured are arranged on the shell, the light inlet is connected with the reflection integrating sphere through a light inlet channel, the window to be measured is connected with the reflection integrating sphere through the channel to be measured, and the light outlet is connected with the reflection integrating sphere through the light outlet channel; the light inlet and the light outlet are arranged on the same side of the shell, the window to be measured is arranged on the side of the shell corresponding to the light inlet, and a first optical fiber connector and a second optical fiber connector are respectively arranged at the light inlet and the light outlet.

2. A reflecting integrating sphere according to claim 1, characterized in that: The housing comprises a first housing and a second housing, wherein the first housing is buckled with the second housing and fixed by bolts.

3. A reflecting integrating sphere according to claim 2, characterized in that: A cylindrical cavity for installing a reflective integrating sphere is arranged inside the first shell, and supporting clamps for supporting the cylindrical cavity are arranged around the cylindrical cavity, and the four corners of the supporting clamps are hollow structures.

4. The reflecting integrating sphere according to claim 2, characterized in that: The first shell and the second shell are made of aluminum or aluminum alloy.

5. The reflecting integrating sphere according to claim 2, characterized in that: The first shell and the second shell are made of engineering plastics.

6. The reflecting integrating sphere according to claim 1, characterized in that: The angle between the light entrance and the horizontal plane is less than 10°.

7. The reflecting integrating sphere according to claim 6, characterized in that: The angle between the light entrance and the horizontal plane is 8°.

Images