Confocal spectrometer
By designing a confocal spectrometer, the structure of the incident channel, reflection channel and spectrometer is used to solve the problem of large measurement error of the spectrometer on the ambient light, and efficiently and accurately measure the sample chromatic aberration and reflectivity under low light conditions.
Patent Information
- Application Number
- CN202422260964.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-14
AI Technical Summary
When used, existing spectrometers are easily affected by the surrounding ambient light, resulting in large errors in reflectivity and chromatic difference.
A confocal spectrometer is designed, including incident channels, reflection channels, main channels, objective lenses, first and second spectrometers, as well as spectrometers and industrial cameras, connecting the light source through optical fibers, and using the settings of spectrometers and objective lenses to reduce the impact of ambient light and achieve accurate measurements.
The chromatic aberration and reflectivity of the sample can be quickly measured under low light conditions, reducing measurement errors, improving measurement accuracy and operational convenience.
Smart Images
Figure CN223154833U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a spectrometer, belonging to the technical field of optical measurement. Background Art
[0002] A spectrometer is an instrument used to accurately measure the deflection angle of light. It can split a beam of mixed light into multiple beams of pure light, generally used for spectral analysis. A spectrometer is a device that measures the spectral line intensity at different wavelength positions with a photodetector such as a photomultiplier tube. Its structure consists of an incident slit, a dispersion system, an imaging system, and one or more exit slits. Existing spectrometers are easily affected by ambient light during use, resulting in large errors in the finally measured reflectivity and color difference values.
[0003] Measure the standard rate with a standard mirror, then measure the sample, and compare the measured value with the standard rate. This device can quickly measure the color difference of the sample under low-light conditions and can also measure the reflectivity of the sample without being affected by ambient light. Content of the Utility Model
[0004] In order to solve the problem that existing spectrometers are easily affected by ambient light during use, resulting in large errors in the finally measured reflectivity and color difference values, the utility model further provides a confocal spectrometer.
[0005] The technical solution adopted by the utility model to solve the above problems is: the utility model includes an incident channel, a reflection channel, a main channel, an objective lens, a first spectro prism, and a second spectro prism;
[0006] The incident channel and the reflection channel are arranged in sequence from bottom to top, and the right ends of the incident channel and the reflection channel are both connected to the vertically arranged main channel;
[0007] The first spectro prism is arranged inside the connection part of the incident channel and the main channel, and the first spectro prism is located inside the main channel. The second spectro prism is arranged inside the connection part of the reflection channel and the main channel, and the second spectro prism is located inside the main channel. The objective lens is installed at the lower end of the main channel;
[0008] The left end of the incident channel is connected to a light source, and the left end of the reflection channel is connected to a spectral analyzer.
[0009] Further, it further includes a camera;
[0010] The camera is installed at the upper end of the main channel.
[0011] Further, the camera is an industrial camera.
[0012] Further, the center line along the length direction of the incident channel is parallel to the center line along the length direction of the reflection channel.
[0013] Further, the central axis of the incident channel along the length direction is perpendicular to the central axis of the main channel along the length direction; the central axis of the reflection channel along the length direction is perpendicular to the central axis of the main channel along the length direction.
[0014] Further, the incident channel, the reflection channel and the main channel are all made of metal.
[0015] Further, the light source enters the incident channel through an optical fiber.
[0016] The beneficial effects of the present utility model are as follows:
[0017] 1. When the present utility model is in use, first measure the standard rate with a standard mirror, and then measure the sample. Compare the measured value of the sample with the standard rate of the standard mirror to detect the qualified rate of the sample.
[0018] 2. When the present utility model is in use, it is not affected by the ambient light, effectively improving the accuracy of the measured value of the sample and reducing the possibility of error generation.
[0019] 3. The present utility model is convenient to operate, has high measurement efficiency and low error rate. Description of the Drawings
[0020] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0021] Figure 2 is an exploded view of the present utility model. Detailed Embodiments
[0022] Detailed Embodiment 1: As shown in Figure 1 and Figure 2 shown, a confocal spectrometer includes an incident channel 1, a reflection channel 2, a main channel 3, an objective lens 4, a first beam splitting prism 5 and a second beam splitting prism 6;
[0023] The incident channel 1 and the reflection channel 2 are arranged in sequence from bottom to top, and the right ends of the incident channel 1 and the reflection channel 2 are both communicated with the vertically arranged main channel 3;
[0024] The first beam splitting prism 5 is arranged inside the connection of the incident channel 1 and the main channel 3, and the first beam splitting prism 5 is located inside the main channel 3. The second beam splitting prism 6 is arranged inside the connection of the reflection channel 2 and the main channel 3, and the second beam splitting prism 6 is located inside the main channel 3. The objective lens 4 is installed at the lower end of the main channel 3;
[0025] The left end of the incident channel 1 is connected to the light source, and the left end of the reflection channel 2 is connected to the spectral analyzer.
[0026] Detailed Embodiment 2: As shown in Figure 1 and Figure 2As shown, on the basis of the first specific implementation manner, it further includes a camera 7;
[0027] The camera 7 is installed at the upper end of the main channel 3.
[0028] The third specific implementation manner: As Figure 1 and Figure 2 shown, on the basis of the second specific implementation manner, the camera 7 is an industrial camera.
[0029] The fourth specific implementation manner: As Figure 1 and Figure 2 shown, on the basis of the first specific implementation manner, the central line of the incident channel 1 along the length direction is parallel to the central line of the reflection channel 2 along the length direction.
[0030] The fifth specific implementation manner: As Figure 1 and Figure 2 shown, on the basis of the first specific implementation manner, the central line of the incident channel 1 along the length direction is perpendicular to the central line of the main channel 3 along the length direction; the central line of the reflection channel 2 along the length direction is perpendicular to the central line of the main channel 3 along the length direction.
[0031] The sixth specific implementation manner: As Figure 1 and Figure 2 shown, on the basis of the first specific implementation manner, the incident channel 1, the reflection channel 2 and the main channel 3 are all made of metal.
[0032] The seventh specific implementation manner: As Figure 1 and Figure 2 shown, on the basis of the first specific implementation manner, the light source enters the incident channel 1 through an optical fiber.
[0033] Working principle
[0034] The light source enters the incident channel 1 through an optical fiber, then enters the first beam splitter prism 5, and then irradiates the sample lens through the objective lens 4. The sample lens reflects the light beam back into the main channel 3, enters the second beam splitter prism 6, and then enters the spectral analyzer through the reflection channel 2. The spectral analyzer analyzes the light beam to obtain the chromatic aberration and reflectivity of the sample lens.
[0035] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to form equivalent embodiments with equivalent changes within the scope of the technical solution of the present utility model. However, as long as it does not depart from the content of the technical solution of the present utility model, and based on the technical essence of the present utility model, any simple modification, equivalent replacement, and improvement made to the above embodiments within the spirit and principle of the present utility model still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A confocal spectrometer, characterized in that, It includes an incident channel (1), a reflection channel (2), a main channel (3), an objective lens (4), a first beam-splitting prism (5) and a second beam-splitting prism (6); The incident channel (1) and the reflection channel (2) are arranged successively from bottom to top, and the right ends of the incident channel (1) and the reflection channel (2) are both communicated with the vertically arranged main channel (3); The first beam-splitting prism (5) is arranged inside the connection part of the incident channel (1) and the main channel (3), and the first beam-splitting prism (5) is located inside the main channel (3). The second beam-splitting prism (6) is arranged inside the connection part of the reflection channel (2) and the main channel (3), and the second beam-splitting prism (6) is located inside the main channel (3). The objective lens (4) is installed at the lower end of the main channel (3); The left end of the incident channel (1) is connected to a light source, and the left end of the reflection channel (2) is connected to a spectral analyzer.
2. The confocal spectrometer according to claim 1, wherein, It further includes a camera (7); The camera (7) is installed at the upper end of the main channel (3).
3. The confocal spectrometer according to claim 2, wherein, The camera (7) is an industrial camera.
4. The confocal spectrometer according to claim 1, characterized in that, The center line of the incident channel (1) along the length direction is parallel to the center line of the reflection channel (2) along the length direction.
5. The confocal spectrometer according to claim 1, wherein The center line of the incident channel (1) along the length direction is perpendicular to the center line of the main channel (3) along the length direction; the center line of the reflection channel (2) along the length direction is perpendicular to the center line of the main channel (3) along the length direction.
6. The confocal spectrometer according to claim 1, wherein The incident channel (1), the reflection channel (2) and the main channel (3) are all made of metal.
7. A confocal spectrometer according to claim 1, wherein, The light source enters the incident channel (1) through an optical fiber.