CN106841165B - Portable Raman spectrometer capable of turning optical path - Google Patents
Portable Raman spectrometer capable of turning optical path Download PDFInfo
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- CN106841165B CN106841165B CN201710183873.4A CN201710183873A CN106841165B CN 106841165 B CN106841165 B CN 106841165B CN 201710183873 A CN201710183873 A CN 201710183873A CN 106841165 B CN106841165 B CN 106841165B
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- 230000003287 optical effect Effects 0.000 title claims abstract description 39
- 238000001069 Raman spectroscopy Methods 0.000 title claims abstract description 30
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 238000001228 spectrum Methods 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000001237 Raman spectrum Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/65—Raman scattering
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The application discloses a portable Raman spectrometer capable of turning an optical path, which comprises an outer shell, a laser generator, an optical lens unit, a spectrum detection unit and a detector, wherein the laser generator, the optical lens unit, the spectrum detection unit and the detector are arranged in the outer shell, the optical lens unit comprises a rectangular box body for accommodating and fixing all elements and an infrared anti-reflection lens fixedly arranged with the rectangular box body, an optical path turning mechanism is further arranged between the rectangular box body and the infrared anti-reflection lens, the optical path turning mechanism comprises a square small box body fixedly connected with the rectangular box body, a through hole for allowing laser to pass through is directly formed in one side surface fixedly connected with the rectangular box body, a reflector is arranged in the square small box body, the reflector is driven by a pull rod extending out of the square small box body, and meanwhile, the infrared anti-reflection lens is fixedly arranged on two adjacent side surfaces of the square small box body respectively, and laser transmitted from the through hole is output from different infrared anti-reflection lenses by means of the reflector.
Description
Technical Field
The present application relates to a raman spectroscopy technology, and more particularly, to a portable raman spectrometer capable of turning an optical path.
Background
Raman spectroscopy is an important spectroscopic technology for researching the microstructure of a substance, and at present, equipment for researching the microscopic substance by utilizing a raman scattering technology mainly comprises a raman spectrometer which is relatively high in sensitivity and is combined with a confocal microscopic device, but the existing raman spectrometer generally has the problems of huge volume, complex optical path, difficulty in achieving compact structure and easiness in carrying and operation on the basis of considering detection sensitivity. In order to solve the problem of portability and operation, the inventor of the present application disclosed a portable raman spectrometer in chinese patent CN201520382348.1, as shown in fig. 1 and 2, which is composed of a laser generator 1, a laser mirror 2, an optical lens unit 3, a spectrum detection unit and a detector (CCD) 5, and according to the particularity of the optical path transmission, the laser generator 1, the laser mirror 2, the optical lens unit 3, the spectrum detection unit and the detector (CCD) 5 are combined with each other on a pentagonal prism-shaped support frame having a special structure, together forming a raman spectrometer, irradiating a substance to be detected with laser light, and detecting a raman signal of the substance to be detected.
However, the laser light emitted from the optical lens unit 3 by the portable raman spectrometer in the above patent can only be irradiated in the forward direction, so that the object to be measured can only be placed in front of the spectrometer, and the use range of the portable raman spectrometer is limited.
Disclosure of Invention
In order to solve the above problems, an object of the present application is to provide a portable raman spectrometer capable of turning an optical path, so that laser light emitted from an optical lens unit can be turned according to different needs, to expand the use range of the spectrometer, and to be more convenient to use.
The portable Raman spectrometer capable of turning an optical path comprises an outer shell, a laser generator, an optical lens unit, a spectrum detection unit and a detector, wherein the laser generator, the optical lens unit, the spectrum detection unit and the detector are arranged in the outer shell, the optical lens unit comprises a rectangular box body for accommodating and fixing all elements, an infrared anti-reflection lens for guiding out laser emitted by the laser generator is fixedly arranged on one end side surface of the rectangular box body, an optical path turning mechanism is arranged between the end side surface of the rectangular box body and the infrared anti-reflection lens, the optical path turning mechanism comprises a square small box body fixedly connected with the rectangular box body, a through hole for the laser to pass through is directly formed in one side surface fixedly connected with the rectangular box body, a reflecting mirror is arranged in the square small box body, the reflecting mirror is driven by a pull rod extending out of the square small box body, meanwhile, the infrared anti-reflection lens is fixedly arranged on two adjacent side surfaces of the square small box body, and the infrared anti-reflection lens is used for outputting laser from different through the through hole.
One of the two infrared anti-reflection lenses is arranged in the same straight line with the through hole, and the other one is arranged downwards at an angle of 90 degrees with the through hole.
In order to match the downward infrared anti-reflection lens, a stage capable of inserting a glass slide is fixedly arranged on the outer shell.
An infrared anti-reflection lens is arranged in a straight line with the through hole, and an installation slot is arranged on the outer surface extending out of the square small box body.
The square small box body extends out of the outer shell body after being fixedly installed.
The square small box body is integrally provided with a boss which is convenient for the pull rod to be installed on one side surface for installing the pull rod.
The application can further enlarge the application range of the portable Raman spectrometer by arranging the light path turning mechanism.
Drawings
Fig. 1 is a schematic view of the external appearance structure of a conventional portable raman spectrometer.
Fig. 2 is a schematic diagram of the internal structure of the portable raman spectrometer shown in fig. 1.
Fig. 3 is a schematic structural diagram of a portable raman spectrometer in the present application.
Fig. 4 is an enlarged view of the structure of the optical path turning mechanism in the present application.
Detailed Description
Specific embodiments of the application will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the portable raman spectrometer in chinese patent CN201520382348.1 includes an outer housing 20, a pentagonal prism-shaped supporting frame 10 disposed inside the outer housing 20, and a laser generator 1, an optical lens unit 3, a spectrum detecting unit and a detector 5 fixedly mounted on the pentagonal prism-shaped supporting frame 10, and specifically comprises: the pentagonal prism-shaped support frame 10 includes two parallel first and second side surfaces 21, 22, and five first, second, third, fourth, fifth mounting surfaces 23, 24, 25, 26, 27 sandwiched between the first and second side surfaces 21, 22 and connected end to end perpendicular to the first and second side surfaces 21, 22. Wherein the laser generator 1 is fixedly arranged on the outer surface of the first side surface 21 of the support frame, the optical lens unit 3 is fixedly arranged on the outer surface of the first mounting surface 23, the detector 5 is fixedly arranged on the outer surface of the second mounting surface 24, and the spectrum detection unit is fixedly arranged on the inner surface of the fourth mounting surface 26. The third mounting surface 25 and the fifth mounting surface 27 are for fixed connection with the outer housing 20.
The optical lens unit 3 is integrally assembled on a rectangular box 28, and comprises a laser reflector 2 arranged on the outer surface of the rectangular box 20 and positioned on the same side of the laser generator 1, when a portable Raman spectrometer is required to be used for spectrum detection of an object to be detected, laser transmitted by the laser generator 1 enters the optical lens unit 3 through a small hole formed in the wall of the optical lens unit 3 by using the laser reflector 2, and is reflected to an infrared anti-reflection lens 6 extending out of the outer surface of the outer shell 20 through a 45-degree angle edge filter 8 in the optical lens unit 3, and the object to be detected is directly irradiated by the laser through the infrared anti-reflection lens 6. The Raman signal and Rayleigh scattered light generated after the object to be measured is excited by laser are reflected to the infrared anti-reflection lens 6 and transmitted to the 45-degree edge filter 8, the Rayleigh scattered light is filtered by the 45-degree edge filter 8, the Raman signal passes through the 45-degree edge filter 8 and then reaches the spectrum detection unit after passing through the focusing lens 7 and the slit, and the Raman spectrum is formed by grating light splitting in the spectrum detection unit.
Finally, the formed Raman spectrum is reflected to the detector 5, the whole light path is processed, and the analysis result of the object to be detected is obtained.
As shown in fig. 3 and 4, the portable raman spectrometer of the present application is an improvement of the spectrometer of the above patent, wherein a light path turning mechanism 9 is fixedly installed on the outer surface of one end side surface of a rectangular box 28 where an infrared anti-reflection lens 6 is installed, and then two infrared anti-reflection lenses 6 are installed on the light path turning mechanism 9, specifically: the light path turning mechanism 9 comprises a square small box body 12 fixedly connected with a rectangular box body 28, six side surfaces of the square small box body 12 are respectively four first, second, third, fourth 18, 29, 30 and 31 which are connected end to end, and fifth and sixth side surfaces 32 and 33 which are positioned at two ends of a cavity formed by four side surfaces which are connected end to end, wherein the first side surface 18 is fixedly connected with the rectangular box body 28, a through hole 19 for laser to pass through is directly formed on the first side surface 18, a reflector 13 is arranged in the cavity of the square small box body 12, the reflector 13 is driven by a pull rod 14 which extends out of the fifth side surface 32 of the square small box body 12, the position of the reflector 13 in the square box body 12 can be moved by means of pushing and pulling of the pull rod 14, and an outwards protruding boss is integrally formed on the fifth side surface 32 for facilitating installation and fixing of the pull rod 14.
An infrared anti-reflection lens 6 is fixedly arranged on each of two adjacent side surfaces, namely a second side surface 29 and a third side surface 30, of the square small box body 12, the third side surface 30 is opposite to the first side surface 18, the infrared anti-reflection lens 6 on the third side surface 30 is in a straight line with the through hole 19 on the first side surface 18, and the second side surface 29 is vertical to the first side surface 18 and vertically downward. When the reflecting mirror 13 is pushed inward by the pull rod 14, the laser light emitted by the optical lens unit 3 is output through the through hole 19, and the laser light changes the transmission direction by means of reflection of the reflecting mirror 13, namely, is output through the infrared anti-reflection lens 6 on the second side surface 29 after being vertically turned downward, and when the reflecting mirror 13 is pulled outward by the pull rod 14, the laser light output by the optical lens unit 3 through the through hole 19 is directly output from the infrared anti-reflection lens 6 on the third side surface 30.
As shown in fig. 4, after the square small box 12 is fixedly connected with the rectangular box 28, the square small box extends out of the outer casing 20, an objective table 16 is installed under the outer casing 20 and is located right below the square small box 12, the objective table 16 extends out of the outer casing 20, so that a glass slide 15 inserted into the objective table 16 can be located right below an infrared anti-reflection lens 6 installed on the second side 29, a solid object to be measured can be placed on the glass slide 15 and directly inserted into the objective table 16, and then the pull rod 14 is pushed in, so that laser directly irradiates the object to be measured on the slope sheet 15.
The outer surface of the infrared anti-reflection lens 6 arranged on the third side surface 30 is provided with an installation slot 17, various clamps can be matched with the installation slot 17, and various objects to be detected such as liquid, solid and the like can be clamped by the clamps, so that the detection range of the portable Raman spectrometer is further widened.
Claims (3)
1. The portable Raman spectrometer capable of turning an optical path comprises an outer shell, a laser generator, an optical lens unit, a spectrum detection unit and a detector, wherein the laser generator, the optical lens unit, the spectrum detection unit and the detector are arranged in the outer shell, the optical lens unit comprises a rectangular box body for accommodating and fixing all elements, an infrared anti-reflection lens for guiding out laser emitted by the laser generator is fixedly arranged on one end side surface of the rectangular box body, and the portable Raman spectrometer is characterized in that an optical path turning mechanism is arranged between the end side surface of the rectangular box body and the infrared anti-reflection lens, the optical path turning mechanism comprises a square small box body fixedly connected with the rectangular box body, a through hole for the laser to pass through is directly formed in one side surface fixedly connected with the rectangular box body, a reflecting mirror is arranged in the square small box body, the reflecting mirror is driven by a pull rod extending out of the square small box body, and meanwhile, the infrared anti-reflection lens is fixedly arranged on two adjacent side surfaces of the square small box body, and the infrared anti-reflection lens is respectively arranged on two adjacent side surfaces of the square small box body, and the infrared anti-reflection lens is output from different laser through the through holes by means of reflecting mirror;
one of the two infrared anti-reflection lenses and the through hole are arranged in the same straight line, and the other one of the two infrared anti-reflection lenses and the through hole are arranged downwards at an angle of 90 degrees;
for matching with the downward infrared anti-reflection lens, a carrying table capable of inserting a glass slide is fixedly arranged on the outer shell;
an infrared anti-reflection lens is arranged in a straight line with the through hole, and an installation slot is arranged on the outer surface extending out of the square small box body.
2. The portable raman spectrometer capable of optical path turning according to claim 1, wherein said small square box is fixedly mounted to extend out of said outer housing.
3. The portable raman spectrometer capable of turning an optical path according to claim 1, wherein the square small box body is integrally provided with a boss on one side surface for installing a pull rod, so that the pull rod is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710183873.4A CN106841165B (en) | 2017-03-24 | 2017-03-24 | Portable Raman spectrometer capable of turning optical path |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710183873.4A CN106841165B (en) | 2017-03-24 | 2017-03-24 | Portable Raman spectrometer capable of turning optical path |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106841165A CN106841165A (en) | 2017-06-13 |
| CN106841165B true CN106841165B (en) | 2023-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710183873.4A Active CN106841165B (en) | 2017-03-24 | 2017-03-24 | Portable Raman spectrometer capable of turning optical path |
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| JPH0480685A (en) * | 1990-07-20 | 1992-03-13 | Matsushita Electric Ind Co Ltd | Infrared detection module |
| JPH0588257A (en) * | 1991-04-01 | 1993-04-09 | Fuji Xerox Co Ltd | Film image reader |
| CN101002700A (en) * | 2006-12-29 | 2007-07-25 | 山东省寄生虫病防治研究所 | Apparatus for distingushing China insects morphosis |
| CN102323703A (en) * | 2011-07-27 | 2012-01-18 | 中国科学院长春光学精密机械与物理研究所 | Reflector path optical system based on miniature Raman spectrometer |
| CN102608098A (en) * | 2012-02-22 | 2012-07-25 | 江阴极光仪器科技有限公司 | Confocal raman spectrometer and treatment method for laser path of confocal raman spectrometer |
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| CN203573332U (en) * | 2013-09-22 | 2014-04-30 | 何赛灵 | Compact optical fingerprint acquisition system for wireless electronic device |
| CN203778974U (en) * | 2014-04-02 | 2014-08-20 | 温州大学 | Focusing optical path system for multi-pulse gradual laser drilling |
| CN104749162A (en) * | 2015-04-17 | 2015-07-01 | 江苏天瑞仪器股份有限公司 | Confocal Raman spectrometer and light path device thereof |
| CN204666514U (en) * | 2015-06-04 | 2015-09-23 | 北京极光仪器科技有限公司 | With the portable confocal Raman spectrometer of pentagon spectrometer |
| CN204731160U (en) * | 2015-06-01 | 2015-10-28 | 复旦大学 | A kind of autofluorescence life-span imaging and fluorescence spectrum combine the device being used for early diagnosis of cancer |
| CN205480507U (en) * | 2016-01-29 | 2016-08-17 | 上海棱光技术有限公司 | Deuterium lamp and tungsten lamp combination integration automatic switch -over light source device |
| CN205750068U (en) * | 2016-05-17 | 2016-11-30 | 宁波舜宇电子有限公司 | A kind of switchable light channel structure |
| CN206772830U (en) * | 2017-03-24 | 2017-12-19 | 钢研纳克检测技术有限公司 | The Portable Raman spectrometer of light path turnover can be made |
-
2017
- 2017-03-24 CN CN201710183873.4A patent/CN106841165B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0480685A (en) * | 1990-07-20 | 1992-03-13 | Matsushita Electric Ind Co Ltd | Infrared detection module |
| JPH0588257A (en) * | 1991-04-01 | 1993-04-09 | Fuji Xerox Co Ltd | Film image reader |
| CN101002700A (en) * | 2006-12-29 | 2007-07-25 | 山东省寄生虫病防治研究所 | Apparatus for distingushing China insects morphosis |
| CN102323703A (en) * | 2011-07-27 | 2012-01-18 | 中国科学院长春光学精密机械与物理研究所 | Reflector path optical system based on miniature Raman spectrometer |
| CN102608098A (en) * | 2012-02-22 | 2012-07-25 | 江阴极光仪器科技有限公司 | Confocal raman spectrometer and treatment method for laser path of confocal raman spectrometer |
| CN103267746A (en) * | 2013-04-23 | 2013-08-28 | 武汉新瑞达激光工程有限责任公司 | Integrated laser probe component analyzer for macroscopic and micro-area component analysis |
| CN203573332U (en) * | 2013-09-22 | 2014-04-30 | 何赛灵 | Compact optical fingerprint acquisition system for wireless electronic device |
| CN203778974U (en) * | 2014-04-02 | 2014-08-20 | 温州大学 | Focusing optical path system for multi-pulse gradual laser drilling |
| CN104749162A (en) * | 2015-04-17 | 2015-07-01 | 江苏天瑞仪器股份有限公司 | Confocal Raman spectrometer and light path device thereof |
| CN204731160U (en) * | 2015-06-01 | 2015-10-28 | 复旦大学 | A kind of autofluorescence life-span imaging and fluorescence spectrum combine the device being used for early diagnosis of cancer |
| CN204666514U (en) * | 2015-06-04 | 2015-09-23 | 北京极光仪器科技有限公司 | With the portable confocal Raman spectrometer of pentagon spectrometer |
| CN205480507U (en) * | 2016-01-29 | 2016-08-17 | 上海棱光技术有限公司 | Deuterium lamp and tungsten lamp combination integration automatic switch -over light source device |
| CN205750068U (en) * | 2016-05-17 | 2016-11-30 | 宁波舜宇电子有限公司 | A kind of switchable light channel structure |
| CN206772830U (en) * | 2017-03-24 | 2017-12-19 | 钢研纳克检测技术有限公司 | The Portable Raman spectrometer of light path turnover can be made |
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| Publication number | Publication date |
|---|---|
| CN106841165A (en) | 2017-06-13 |
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Address after: 100081 Beijing city Haidian District sorghum Bridge Street No. 13 Applicant after: NCS TESTING TECHNOLOGY CO.,LTD. Address before: 100081 Beijing city Haidian District sorghum Bridge Street No. 13 Applicant before: NCS Testing Technology Co.,Ltd. |
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