CN216816454U - Horizontal lofting reflecting seat - Google Patents
Horizontal lofting reflecting seat Download PDFInfo
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- CN216816454U CN216816454U CN202123317167.5U CN202123317167U CN216816454U CN 216816454 U CN216816454 U CN 216816454U CN 202123317167 U CN202123317167 U CN 202123317167U CN 216816454 U CN216816454 U CN 216816454U
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- 230000005284 excitation Effects 0.000 claims abstract description 49
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 239000013307 optical fiber Substances 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 5
- 230000003595 spectral effect Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 abstract description 13
- 238000009434 installation Methods 0.000 abstract description 4
- 230000008020 evaporation Effects 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 230000001788 irregular Effects 0.000 abstract 1
- 238000001228 spectrum Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 2
- 238000001069 Raman spectroscopy Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The utility model provides a horizontal lofting reflecting seat which can be universally used for an optical detection device with an excitation light beam and an emission light beam forming any angle theta, and realizes the horizontal placement of a sample for optical detection. The light reflecting seat is an integral block body with an irregular shape, the inclined side surface of the light reflecting seat forms an angle beta with the horizontal mounting surface, and the surface of the inclined side surface is coated with a light reflecting material by evaporation. The installation is simple, the reflector is installed to ensure that the distances ab1 (ab 2) from the intersection point a of the excitation light beam and the emission light beam to the intersection points b1 and b2 of the excitation light beam and the emission light beam are equal, the sample is placed at the position d, and the reflector and the sample are installed and placed at the position satisfying
The reflecting seat can also be coupled with an optical fiber and an external light source, so that the broadband light-emitting characteristic of the sample can be detected.
Description
Technical Field
The utility model discloses a universal reflecting seat capable of realizing horizontal placement of a sample for optical detection, belongs to the technical field of optical detection, and particularly relates to a horizontal lofting reflecting seat.
Background
When the absorption, fluorescence, ultraviolet, infrared, raman and other conventional spectrum detection of a sample is carried out, two detection optical paths are available: one is that the excitation beam penetrates the sample, and the emission, scattering and transmission of the excited sample are detected on the other side of the sample; the other is that the excitation light beam excites the sample, the emitted light is detected at a certain angle between one side of the front surface of the sample and the incident direction, and when the selected angle avoids the reflected and transmitted light beams, the emission or scattering spectrum can be more accurately tested. In addition, for some samples such as optical films or anisotropic crystals, the optical property changes such as excitation, emission, reflection and the like under different angles need to be tested, so that the samples need to be detected at different angles. For most optical detection devices with certain angles (generally 90 degrees) between excitation and detection directions, a sample is generally vertically placed for detection, a liquid sample can be placed in a cuvette, and a powder sample is clamped by a window sheet and fixed on a sample rack through a clamp for detection after being ground and pressed into a sheet, so that the sample preparation is complicated, and the test time is prolonged; and for some substances with extremely high hardness, the substances are difficult or even impossible to grind into fine powder and compress into tablets for detection, and the detection of the optical characteristics is more troublesome. In order to solve the problems, the utility model provides an optical detection device which can be universally used for forming any angle between an excitation light beam and an emission light beam, and realizes that a sample is horizontally placed for optical detection.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model provides a horizontal lofting reflecting base which can be universally used for an optical detection device with an excitation beam and an emission beam forming any angle, so that a sample is horizontally placed for optical detection.
The utility model provides a horizontal lofting light reflecting seat, as shown in figure 1, the top of the horizontal lofting light reflecting seat is a rectangular plane, and the center of the horizontal lofting light reflecting seat is provided with a circular through hole for coupling an optical fiber and an external light source; the bottom is a right-angled triangular plane; the long edge of the bottom right-angle triangular plane is used as the edge of the light reflecting seat, an inclined side face is arranged at an angle beta with the bottom right-angle triangular plane, a light reflecting material is evaporated on the surface of the inclined side face and used for reflecting the excitation light beam to irradiate the surface of the sample, and the reflected light beam is reflected to the spectral detector to be collected and processed.
Specifically, as shown in FIG. 3, the intersection position of the known excitation beam and the emitted beam is denoted as a, and the known excitation beamThe intersection angle of the horizontal lofting reflector and the emission beam is recorded as theta (0 DEG < theta < 180 DEG), the vertical distance between the excitation beam and the emission beam and the horizontal mounting surface is recorded as r, the position of the intersection point of the excitation beam and the oblique side surface is recorded as b1, the position of the intersection point of the emission beam and the oblique side surface is recorded as b2, the position of the sample placed on the horizontal mounting surface is recorded as d, the distances among the points a, b1, b2 and d are respectively recorded as ab1, ab2, db1 and db2, and the horizontal lofting reflector and the sample placement position meet the requirements that the horizontal lofting reflector and the sample are placed on the horizontal mounting surface
The utility model has the beneficial effects that:
(1) the horizontal lofting light reflecting seat disclosed by the utility model is an irregular-shaped integrated block body, is simple to install, and can be universally used for an optical detection device with an excitation light beam and an emission light beam forming any angle.
(2) The utility model discloses a horizontal lofting reflecting seat, wherein the angle between the inclined side surface of the horizontal reflecting seat and the horizontal plane is beta, the known intersection angle theta of an excitation light beam and a transmission light beam, the vertical distance r between the excitation light beam and the transmission light beam and a horizontal mounting surface and other known conditions are known, and the reflecting seat is mounted on
And at the position, the excitation light beam is reflected by the inclined side surface and then irradiates the sample, and the fluorescence emitted by the sample after being excited is reflected by the inclined side surface and then enters the spectral detector, so that the sample is horizontally placed for detection.
(3) According to the horizontal lofting reflective base disclosed by the utility model, a powder solid sample does not need to be pressed into a window sheet, and can be directly and horizontally placed for testing.
Drawings
FIG. 1 is an appearance diagram of a horizontal lofting reflector
FIG. 2 is a schematic view of a horizontal lofting reflector along the top diagonal
FIG. 3 is a three-dimensional schematic view of a light path of a horizontal lofting reflective base
FIG. 4 is a side view of a light path of a reflection base for horizontal lofting
FIG. 5 is a first embodiment of a horizontal lofting reflector
FIG. 6 is a second embodiment of a horizontal lofting reflector
FIG. 7 is a third embodiment of a horizontal lofting reflector base
In the figure: 1-reflecting seat, 2-exciting light source, 3-spectrum detector, 4-sample, 5-external light source and 6-optical fiber
Detailed Description
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the following examples are only illustrative and explanatory of the present invention and should not be construed as limiting the scope of the present invention. All the technologies realized based on the above-mentioned contents of the present invention are covered in the protection scope of the present invention.
The utility model provides a horizontal lofting light reflecting seat, as shown in figure 1, the top of which is a rectangular plane, and the center of which is provided with a circular through hole for coupling an optical fiber 6 and an external light source 5; the bottom is a right-angled triangular plane; the light reflecting seat 1 takes the long edge of a bottom right-angle triangular plane as an edge, an inclined side surface is arranged at an angle of beta to a horizontal mounting surface, a light reflecting material is evaporated on the surface of the inclined side surface and used for reflecting an excitation light beam to irradiate the surface of a sample 4 and then reflecting the emission light beam to a spectral detector 3 for collection and processing.
Specifically, as shown in fig. 3, it is known that the intersection point of the excitation light beam and the emission light beam is a, the intersection point of the excitation light beam and the inclined side surface is b1, the intersection point of the emission light beam and the inclined side surface is b2, the midpoint of the bottom edge of the inclined side surface of the reflector base 1 is c, the position where the sample is placed on the horizontal installation surface is D, the distances between the points a, b1, b2, c and D are ab1, ab2, ac, db1, db2, dc and b1b2, and the sample is placed on the D position of the horizontal installation surface, so that ab1 ═ ab2 ═ db1 ═ db2 ═ D (D > 0).
Given that the intersection angle of the excitation light beam and the emission light beam is recorded as theta (0 DEG < theta < 180 DEG), the midpoint of the b1b2 is recorded as e, then the points a, c, d and e are on the same plane, and the distances between the points a, c, d and e are respectively recorded as ae, ce, de, ae/cd; since ab1 is ab2, db1, db2, D and ae is de, Dsin (90 ° - θ/2), and angle dce is angle aec, the four points a, c, D and e together form an equilateral parallelogram, i.e., ae is de, ac is dc, Dsin (90 ° - θ/2), and angle dce is angle aec, and angle ced is β.
It is known that the vertical distance between the excitation light beam and the emission light beam and the horizontal installation surface is recorded as r, that is, the vertical length of the side dc of an isosceles triangle (de ═ dc) formed by three points c, e and d is r, and de ═ r/sin (180 ° -2 β) according to the relation between the side and the angle of the triangle.
In conclusion, since de ═ Dsin [90 ° - (θ/2)]R/sin (180 ° -2 β), so that the reflector 1 is mounted on
At the location.
When the luminescence characteristics of the sample 4 are detected, according to the angle theta between the excitation light beam emitted by the excitation light source 2 and the emission light beam received by the spectrum detector 3 and the angle beta between the inclined side surface of the reflection base 1 and the horizontal direction, the reflection base 1 is arranged in the sample chamber of the spectrum detection instrument, so that the excitation light beam and the emission light beam respectively strike the positions b1 and b2 on the inclined side surface of the reflection base 1 and are respectively away from the position a of the intersection point of the excitation light beam and the emission light beam
Then, the sample 4 is placed on the perpendicular line of the bottom edge of the inclined side surface of the light reflecting seat 1 away from the bottom edge of the inclined side surface
At the location.
The present solution is further described below with reference to specific embodiments:
the horizontal lofting reflector base provided by the utility model is installed in a sample bin according to a reflector base 1 as shown in figure 3, so that
The sample 4 is placed in the bottom edge of the inclined side surface of the reflecting seat 1 to hangThe distance between the line and the bottom edge dc of the oblique side surface is Dsin
At the position, the detection of the light emission characteristics of the sample 4 was performed.
In the first embodiment of the present invention, the horizontal lofting reflector base can realize the horizontal single excitation light source excitation test of the sample 4. As shown in fig. 5, the reflector 1 is installed and the sample 4 is placed according to the above method, the excitation light source 2 is turned on to emit an excitation light beam (solid arrow), the excitation light beam strikes the inclined side b1 of the reflector 1 and is reflected to the sample 4, and a fluorescence light beam (dotted arrow) emitted after the sample 4 is excited is reflected by the reflector 1 and enters the spectrum detector 3 for data processing and output.
In a second embodiment of the present invention, the horizontal lofting reflector enables vertical single excitation light source excitation testing of the sample 4. As shown in fig. 6, the light reflecting base 1 is installed and the sample 4 is placed according to the above method, the external light source 5 is connected to one end of the optical fiber 6, the other end of the optical fiber 6 is installed in a central circular through hole formed in the top of the light reflecting base 1, the external light source 5 is turned on, the emitted excitation light beam (dotted arrow) vertically irradiates the surface of the sample 4 through the optical fiber 6, and the fluorescence emitted by the excited sample 4 is reflected by the light reflecting base 1 to enter the spectrum detector 3 for data processing and output.
In the third embodiment of the present invention, the horizontal lofting reflector can realize the co-excitation test of the horizontal excitation light source and the vertical excitation light source of the sample 4. As shown in fig. 7, the reflector 1 is installed and the sample 4 is placed according to the above method, the external light source 5 is connected to one end of the optical fiber 6, and the other end of the optical fiber 6 is installed in the central circular through hole formed at the top of the reflector 1. And simultaneously, the excitation light source 2 and the external light source 5 are turned on, an excitation light beam (a solid arrow) emitted by the excitation light source 2 and the reflecting seat 1 form an angle beta to irradiate the inclined side surface b1 of the reflecting seat 1 and be reflected to the sample 4, the excitation light beam (a dotted arrow) emitted by the external light source 5 vertically irradiates the surface of the sample 4 downwards through the optical fiber 6, and after the sample 4 is excited by the excitation light beams with different wave bands emitted by the excitation light source 2 and the external light source 5, the emitted fluorescent light beam (a dotted arrow) is reflected by the inclined side surface of the reflecting seat 1 again and enters the spectral detector 3 for data processing and output.
The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiment. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A horizontal lofting light reflecting seat is characterized in that the top of the light reflecting seat (1) is a rectangular plane, and a circular through hole is formed in the center of the light reflecting seat; the bottom is a right-angled triangular plane; the light reflecting seat (1) takes the long edge of a bottom right-angle triangular plane as a side, an inclined side surface is arranged at an angle beta with a horizontal mounting surface, a light reflecting material is evaporated on the surface of the inclined side surface and used for reflecting an excitation light beam to irradiate the surface of a sample (4), and then the light reflecting material is reflected to emit a light beam to a spectral detector (3) for collection and processing.
2. A horizontal lofting reflector base according to claim 1, wherein the intersection of the known excitation beam and the emitted beam is designated as a, the intersection of the known excitation beam and the emitted beam is designated as θ (0 ° < θ < 180 °), the perpendicular distance between the known excitation beam and the emitted beam and the horizontal mounting surface is designated as r, the intersection of the excitation beam and the oblique side surface is designated as b1, the intersection of the emitted beam and the oblique side surface is designated as b2, the position of the sample (4) placed on the horizontal mounting surface is designated as d, and the distances between points a, b1, b2 and d are designated as ab1, ab2, db1 and db2, respectively, and the horizontal lofting reflector base (1) and the sample (4) are placed at positions satisfying a
3. A horizontal lofting reflector base according to claim 1, wherein the reflector base (1) has a circular through hole in its center for coupling an optical fiber (6) to an external light source (5) for emitting an excitation beam vertically to irradiate the sample (4) for detection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123317167.5U CN216816454U (en) | 2021-12-27 | 2021-12-27 | Horizontal lofting reflecting seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123317167.5U CN216816454U (en) | 2021-12-27 | 2021-12-27 | Horizontal lofting reflecting seat |
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| Publication Number | Publication Date |
|---|---|
| CN216816454U true CN216816454U (en) | 2022-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123317167.5U Active CN216816454U (en) | 2021-12-27 | 2021-12-27 | Horizontal lofting reflecting seat |
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| CN (1) | CN216816454U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114136946A (en) * | 2021-12-27 | 2022-03-04 | 厦门汇美集智科技有限公司 | A horizontal lofted reflector |
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2021
- 2021-12-27 CN CN202123317167.5U patent/CN216816454U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114136946A (en) * | 2021-12-27 | 2022-03-04 | 厦门汇美集智科技有限公司 | A horizontal lofted reflector |
| CN114136946B (en) * | 2021-12-27 | 2025-03-07 | 厦门爱科思光科技有限公司 | A horizontal reflective seat |
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