CN214953031U - Spectrum transmittance detection device - Google Patents
Spectrum transmittance detection device Download PDFInfo
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- CN214953031U CN214953031U CN202120288318.XU CN202120288318U CN214953031U CN 214953031 U CN214953031 U CN 214953031U CN 202120288318 U CN202120288318 U CN 202120288318U CN 214953031 U CN214953031 U CN 214953031U
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Abstract
The utility model discloses a spectrum transmittance detection device, the objective table is provided with a detection hole, a sample to be detected can be fixedly placed on the objective table, a detection module is also arranged in the shell, and light rays emitted by a light source can pass through the sample to be detected and the detection hole to enter the detection module; a light splitting module is further arranged between the detection hole and the light source, and a shooting mechanism is further arranged on the shell and can record light rays reflected or transmitted by the light splitting module; and a central optical filter is arranged between the shooting mechanism and the light splitting module. The application does not need to arrange additional illuminating lamps and turn on and off the lamps, so that the operation is more convenient, and the misoperation probability is lower; because the light scattered by the light spots and the halos is enough to illuminate the outline of the area to be measured, the central filter only reduces the brightness of the light spots and the halos, the contrast is improved, an operator can quickly find the position relation between the light spots and the area to be measured, and the working efficiency is higher.
Description
Technical Field
The utility model relates to a transmissivity detection device field, concretely relates to spectrum transmissivity detection device.
Background
The existing transmittance is an important index for the definition of an object to be viewed and also an important index for characterizing the optical performance of the dielectric material, so manufacturers usually need to detect the transmittance and set a proper quality inspection standard to judge whether the optical performance of the dielectric material is qualified.
At present, a plurality of detection areas (or openings) with different shapes and specifications may be formed on one panel, and the detection difficulty is increasing in order to accurately measure the optical performance of the detection area of the sample to be detected. In order to realize the transmittance measurement of a high-precision complex-shape detection area, light emitted by a used light source is smaller and smaller, however, the light can generate halation after being projected to the area to be detected, light spots and halation can be shot by a shooting mechanism, the light spots and the halation can cover the detection area, and the position relation between the light and the detection area cannot be accurately identified.
In the prior art, the traditional ultraviolet-visible spectrophotometer has the disadvantages of slow speed of testing full spectrum transmittance, complex operation and low measurement efficiency. The technology of the optical fiber spectrometer can improve the testing speed and simplify the operation steps to improve the testing efficiency, but the method only tests a large-size sample and cannot analyze the transmittance of a certain micro area of the sample. If the sample is observed by adding an ocular lens, a certain tiny area of the sample can be locked, but the operation is too complicated.
SUMMERY OF THE UTILITY MODEL
To the above problem, the present invention aims to provide a spectrum transmittance detection device.
In order to realize the technical purpose, the utility model discloses a scheme is: a spectrum transmittance detection device comprises a shell, a light source and an object stage, wherein the light source is arranged in the shell, the object stage is arranged in the middle of the shell, a detection hole is formed in the object stage, a sample to be detected can be fixedly placed on the object stage, a detection module is further arranged in the shell, and light rays emitted by the light source can penetrate through the sample to be detected and the detection hole to enter the detection module;
a light splitting module is further arranged between the detection hole and the light source, and a shooting mechanism is further arranged on the shell and can record light rays reflected or transmitted by the light splitting module;
and a central optical filter is arranged between the shooting mechanism and the light splitting module, and light reflected on the sample to be detected passes through the central optical filter after passing through the light splitting module and is shot and recorded by the shooting mechanism.
Preferably, the light splitting module is a semi-reflective and semi-transparent lens, the light source is positioned above the light splitting module, the light splitting module forms an included angle of 45 degrees with the horizontal plane, the shooting mechanism is positioned on the side surface of the light splitting module, and light reflected by the sample to be measured is shot and recorded by the shooting mechanism through the central optical filter after being reflected by the light splitting module.
Preferably, the center filter is formed by combining a center portion and a light transmission portion, and the light transmission coefficient of the center portion is smaller than that of the light transmission portion.
Preferably, the central portion has a sheet-like structure, and the central portion is bonded to a central portion of the light-transmitting portion.
Preferably, the central portion has a film structure, and the central portion is a plated film at the central position of the light-transmitting portion.
Preferably, the transmittance of the central portion is less than 10% and the transmittance of the transparent portion is greater than 80%.
Preferably, a guide mechanism is arranged between the shooting mechanism and the light splitting module, the central optical filter is installed on the guide mechanism, and the central optical filter can slide back and forth or left and right between the shooting mechanism and the light splitting module along the guide mechanism.
Preferably, a first lens for focusing light of the light source is further disposed between the light source and the light splitting module,
and a second lens is arranged between the light splitting module and the sample to be tested, light reflected by the surface of the sample to be tested passes through the second lens and then sequentially enters the light splitting module and the central optical filter, and reflected light with larger central brightness passes through the central part and is shot and recorded by a shooting mechanism.
Preferably, the object stage is further provided with a positioning clamp and an adjusting knob for positioning the position of the sample to be measured.
Compared with the prior art, the utility model has the advantages that the operation of arranging additional illuminating lamps and turning on and off the lamps is not needed, the operation is more convenient, and the misoperation probability is lower; because the light scattered by the light spots and the halos is enough to illuminate the outline of the area to be measured, the central filter only reduces the brightness of the light spots and the halos, the contrast is improved, an operator can quickly find the position relation between the light spots and the area to be measured, and the working efficiency is higher.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the present invention;
fig. 3 is a reference diagram of the light effect during the detection of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, a specific embodiment be a spectral transmittance detection device, including casing 1, light source 2 and objective table 3, light source 2 sets up in casing 1, casing 1 middle part is provided with objective table 3, set up inspection hole 4 on the objective table 3, can fix on the objective table 3 and lay sample 5 that awaits measuring, still be provided with detection module 6 in the casing 1, the light that light source 2 sent can pass sample 5 and the entrance to detection module 6 of inspection hole 4 that awaits measuring. The detection module 6 can be positioned below the detection hole; it is also possible to install an integrating sphere below the detection hole 4 and then introduce it into the detection module 6 through an optical fiber.
A light splitting module 7 is further arranged between the detection hole 4 and the light source 2, a shooting mechanism 8 is further arranged on the shell 1, and the shooting mechanism 8 can record light rays reflected or transmitted by the light splitting module 7;
a central optical filter 9 is arranged between the recording mechanism 8 and the light splitting module 7, and light reflected by the sample 5 to be measured passes through the light splitting module 7 and then is shot and recorded by the recording mechanism 8 through the central optical filter 9.
The light splitting module 7 is a semi-reflective and semi-transparent lens (capable of 50% transmission and 50% reflection, or capable of 80% transmission and 20% reflection, and selected according to use requirements), the light source 2 is positioned above the light splitting module, the light splitting module 7 and the horizontal plane form an included angle of 45 degrees, the recording mechanism 8 is positioned on the side surface of the light splitting module 7, and light reflected on the sample 5 to be measured is shot and recorded by the recording mechanism 8 through the central optical filter 9 after being reflected by the light splitting module 7.
The center filter 9 is formed by combining a center portion 901 and a light transmitting portion 902, and the light transmission coefficient of the center portion 901 is smaller than that of the light transmitting portion 902. The transmittance of the central portion 901 is less than 10%, and the transmittance of the transparent portion 902 is greater than 80%.
The central portion 901 has a sheet-like structure, and the central portion 901 is bonded to the center of the transparent portion 902. The central portion 901 is a film structure, and the central portion 901 is a plated film at the central position of the light-transmitting portion 902.
In order to adjust the position of the central optical filter conveniently and meet the requirements of different light spot sizes, a guide mechanism is arranged between the shooting mechanism 8 and the light splitting module 7, the central optical filter 9 is mounted on the guide mechanism, the guide mechanism is a slide rail or a slide groove, and the central optical filter 9 can slide back and forth or left and right between the shooting mechanism 8 and the light splitting module 7 along the guide mechanism. A first lens for focusing light of the light source is further arranged between the light source 2 and the light splitting module 7, a second lens is further arranged between the light splitting module 7 and the sample 5 to be measured, light reflected by the surface of the sample to be measured enters the light splitting module and the central optical filter in sequence after passing through the second lens, wherein the reflected light with high brightness (the third and fourth reflected light with high brightness in fig. 3) completely penetrates through the central part 901 of the central optical filter 9 and is shot and recorded by the shooting mechanism 8. Through the guide mechanism, the front, back, left and right positions of the central optical filter can be finely adjusted so as to ensure that after the light reflected by the optical module (the incident main light is reflected by the sample to be measured and then reflected by the beam splitter), the light with larger central brightness can completely enter the central part of the central optical filter and then enter the shooting mechanism;
in order to fix the sample to be detected conveniently and perform more efficient detection, the objective table 3 is further provided with a positioning fixture 10 and an adjusting knob 11 for positioning the sample to be detected 5.
In the second embodiment, the light splitting module is a semi-reflective and semi-transparent lens, the light source is located on the side surface of the light splitting module, the included angle of the light splitting module and the horizontal plane is 45 degrees, the recording mechanism is located above the light splitting module, and light reflected by the sample to be measured penetrates through the light splitting module and then penetrates through the central optical filter to be recorded by the recording mechanism.
Example one
As shown in fig. 2, the light splitting module is arranged at an angle of 45 degrees with respect to the horizontal plane, the light splitting module is a transflective lens with 80% transmittance and 20% reflectance, the light source is located above the top of the light splitting module, the recording mechanism is located on the left side of the light splitting module, the central filter is located between the recording module and the light splitting module, and the central portion of the central filter can just cover the bright areas of the light spots and the halation (the central filter needs to be close to the recording mechanism). Light rays emitted by the light source are condensed by the lens to form thin light rays with smaller diameters, the thin light rays correspond to the monitoring holes, the thin light rays penetrate through the light splitting module and then vertically irradiate a sample to be detected, and light spots and halation are generated on the sample; light reflected by a sample to be measured is reflected to a central filter through a light splitting module (the central filter can reduce the brightness of light spots and halos without affecting the brightness of areas around the halos), the light is recorded by a shooting module after penetrating through the central filter (such as the effect of a D area in fig. 3), namely, a shooting mechanism records the position relation between the light spots generated by incident light and the areas to be measured.
Example two
The light splitting module and the horizontal plane form an included angle of 45 degrees, the light splitting module is a semi-reflecting and semi-permeable lens with 20% of transmittance and 80% of reflectivity, the light source is positioned on the left side of the light splitting module, the shooting mechanism is positioned above the top of the light splitting module, the central light filter is positioned between the shooting module and the light splitting module, and the central part of the central light filter can just cover bright areas such as light spots and halation.
The traditional mode needs additionally to set up the light, seeks the position relation of facula and survey point on the region that awaits measuring through the light, confirms that the position is correct after, need close the light and detect. And after having increased one step of operation, efficiency can reduce, and the workman often can detect when the light is opened simultaneously, leads to the result inaccurate. When the light of light is stronger, the position of facula is difficult to discover, and the regulation degree of difficulty also greatly increased.
Compared with the prior art, the lighting lamp control device has the advantages that extra lighting lamps do not need to be arranged, the lighting lamps are turned on or off, operation is more convenient, and misoperation probability is lower. Because the light scattered by the light spots and the halos is enough to illuminate the outline of the area to be measured, the central filter only reduces the brightness of the light spots and the halos, the contrast is improved, an operator can quickly find the position relation between the light spots and the area to be measured, and the working efficiency is higher.
The above, only do the preferred embodiment of the present invention, not used to limit the present invention, all the technical matters of the present invention should be included in the protection scope of the present invention for any slight modification, equivalent replacement and improvement of the above embodiments.
Claims (10)
1. A spectral transmittance detection device, characterized in that: the light source is arranged in the shell, the object stage is arranged in the middle of the shell, the object stage is provided with a detection hole, a sample to be detected can be fixedly placed on the object stage, the detection module is also arranged in the shell, and light rays emitted by the light source can penetrate through the sample to be detected and the detection hole to enter the detection module;
a light splitting module is further arranged between the detection hole and the light source, and a shooting mechanism is further arranged on the shell and can record light rays reflected or transmitted by the light splitting module;
and a central optical filter is arranged between the shooting mechanism and the light splitting module, and light reflected on the sample to be detected passes through the central optical filter after passing through the light splitting module and is shot and recorded by the shooting mechanism.
2. The spectral transmittance detection device according to claim 1, characterized in that: the light splitting module is a semi-reflecting and semi-transmitting lens, the light source is positioned above the light splitting module, the light splitting module and the horizontal plane form an included angle of 45 degrees, the shooting mechanism is positioned on the side surface of the light splitting module, and light reflected on a sample to be detected is shot and recorded by the shooting mechanism through the central light filter after being reflected by the light splitting module.
3. The spectral transmittance detection device according to claim 1, characterized in that: the central filter is formed by combining a central part and a light transmission part, and the light transmission coefficient of the central part is smaller than that of the light transmission part.
4. The spectral transmittance detection device according to claim 3, characterized in that: the central part is of a sheet structure and is bonded to the central position of the light-transmitting part.
5. The spectral transmittance detection device according to claim 3, characterized in that: the central part is of a film structure, and the central part is a plated film at the central position of the light-transmitting part.
6. The spectral transmittance detection device according to claim 3, characterized in that: the transmittance of the central part is less than 10%, and the transmittance of the light transmission part is more than 80%.
7. The spectral transmittance detection device according to claim 3, characterized in that: the central optical filter can slide back and forth or left and right between the shooting mechanism and the light splitting module along the guide mechanism.
8. The spectral transmittance detection device according to claim 3, characterized in that: a first lens for focusing the light of the light source is arranged between the light source and the light splitting module,
and a second lens is arranged between the light splitting module and the sample to be measured, light reflected by the surface of the sample to be measured enters the light splitting module and the central optical filter in sequence after passing through the second lens, and reflected light with high central brightness penetrates through the central part and is shot and recorded by a shooting mechanism.
9. The spectral transmittance detection device according to claim 1, characterized in that: and the objective table is also provided with a positioning clamp and an adjusting knob which are used for positioning the position of the sample to be measured.
10. The spectral transmittance detection device according to claim 1, characterized in that: the light splitting module is a semi-reflecting and semi-transmitting lens, the light source is positioned on the side face of the light splitting module, the light splitting module and the horizontal plane form an included angle of 45 degrees, the shooting mechanism is positioned above the light splitting module, and light reflected on a sample to be detected penetrates through the light splitting module and then penetrates through the central light filter to be shot and recorded by the shooting mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120288318.XU CN214953031U (en) | 2021-02-02 | 2021-02-02 | Spectrum transmittance detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120288318.XU CN214953031U (en) | 2021-02-02 | 2021-02-02 | Spectrum transmittance detection device |
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| CN214953031U true CN214953031U (en) | 2021-11-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117589724A (en) * | 2023-11-20 | 2024-02-23 | 浙江埃科汽车技术服务有限公司 | Light measuring equipment for transmitted light reflection measurement and use method thereof |
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2021
- 2021-02-02 CN CN202120288318.XU patent/CN214953031U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117589724A (en) * | 2023-11-20 | 2024-02-23 | 浙江埃科汽车技术服务有限公司 | Light measuring equipment for transmitted light reflection measurement and use method thereof |
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