CN202522518U - Handheld Raman spectrometer focusing device - Google Patents
Handheld Raman spectrometer focusing device Download PDFInfo
- Publication number
- CN202522518U CN202522518U CN201220113312.XU CN201220113312U CN202522518U CN 202522518 U CN202522518 U CN 202522518U CN 201220113312 U CN201220113312 U CN 201220113312U CN 202522518 U CN202522518 U CN 202522518U
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- lens
- raman spectrometer
- lens barrel
- sample
- collecting
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Abstract
The utility model relates to a handhold Raman spectrometer focusing device, which comprises a lens bracket and a collecting lens, wherein the lens bracket is arranged at the front end of a handhold Raman spectrometer main body, the collecting lens is fixedly arranged in the lens bracket, the lens bracket is a circular sleeve, a lens barrel is movably arranged in front of the collecting lens in the circular sleeve, the outer end surface of the lens barrel is closely clung to a sample to be tested, and a distance between the sample to be tested and the collecting lens is adjusted by the movable lens barrel. The handheld Raman spectrometer focusing device disclosed by the utility model can be used in the handheld Raman spectrometer, can be used for flexibly adjusting the relative distance between the sample and the Raman spectrometer, ensures that the Raman spectrometer can collect the Raman scattered light furthest, rapidly finds an optimal position for holding the sample aiming at different samples and realizes accurate positioning of the sample to be tested.
Description
Technical field
The utility model belongs to the optical-mechanical field, is specifically related to a kind of hand-held Raman spectrometer focus control.
Background technology
The hand-held Raman spectrometer has that volume is little, detection mode flexibly, be suitable for advantage such as on-the-spot detection, be widely used in fields such as pharmacy, food security, explosive monitorings.The hand-held Raman spectrometer generally is made up of lasing light emitter, outside optical system, spectroscope, detector and computer processing system; Wherein the collecting lens in the outside optical system (object lens) accurately incides the testing sample place after light beam of light source is assembled, and the collection testing sample receives the Raman diffused light that laser beam excites generation.After the instrument light path system is fixing; The laser beam focal position is fixed, but when detecting, the sample of different materials is different to the requirement that laser beam focuses on its internal depth; Have only when laser beam focuses on certain certain location of testing sample inside; Raman spectrometer could more effectively be collected Raman diffused light, and the slight variations of testing sample position all can produce very big influence to the collecting efficiency of scattered light, therefore; When actual detected, need the relative distance between flexible testing sample and the instrument front end object lens, the optimum position that sample is placed during with definite the detection.Hand-held Raman spectrometer flexibility characteristics in use; Require it that a kind of device that can carry out flexible positioning to different samples is arranged in testing process; Yet; Commercially available various hand-held Raman spectrometers all can't provide the device of realizing this function at present; Detect and directly testing sample is close to instrument lens barrel front end, may cause like this having reduced the analytical performance of hand-held Raman spectrometer owing to even collection more weak to the inaccurate raman spectrum strength that collects in sample location occur less than phenomenons such as spectrum.
Summary of the invention
The utility model technical matters to be solved is the deficiency that overcomes above-mentioned prior art; Provide a kind of simple in structure; Form rationally; Can the flexible testing sample and the Raman spectrometer collecting lens between relative distance, guarantee that Raman spectrometer farthest collects Raman diffused light, realize the hand-held Raman spectrometer focus control that testing sample is accurately located.
The technical scheme that the utility model solves the problems of the technologies described above employing is: a kind of hand-held Raman spectrometer focus control; It comprises lens carrier, collecting lens; Said lens carrier is installed on hand-held Raman spectrometer body front end, and collecting lens is fixedly mounted in the lens carrier, it is characterized in that: said lens carrier is a circular sleeve; Removable installation one lens barrel in the place ahead of collecting lens in the circular sleeve; Testing sample is close in the lens barrel outer face, through moving lens barrel, regulates the distance between testing sample and the collecting lens.
The said lens carrier of the utility model is provided with internal thread, and lens barrel is provided with external thread, and lens barrel and lens carrier threaded engagement are rotated lens barrel, and it can move forward and backward along the light beam of light source direction in lens carrier.
The said lens carrier inner underside of the utility model is axially arranged with guide spiro rod, and the lens barrel downside is axially arranged with the thread guide groove that cooperates with said guide spiro rod, rotates guide spiro rod, can drive lens barrel and in lens carrier, move forward and backward along the light beam of light source direction.
The utility model is equipped with a lens barrel movably in the lens carrier circular sleeve; Testing sample is close to the lens barrel outer face; Be positioned at position,, can drive testing sample and move flexibly in the light beam of light source direction through moving lens barrel perpendicular to the light beam of light source direction; Regulate the distance between testing sample and the collecting lens, realize focusing the hand-held Raman spectrometer.Against existing technologies, the utility model is simple in structure, forms rationally, can the flexible testing sample and the Raman spectrometer collecting lens between relative distance.This device can be used in the hand-held Raman spectrometer; Through the relative distance between flexible sample and the Raman spectrometer object lens; Guarantee that Raman spectrometer farthest collects Raman diffused light; Search out the optimum position of placing sample flexibly fast to different samples, realize testing sample is accurately located.
Description of drawings
Below in conjunction with accompanying drawing the utility model is elaborated.
Fig. 1 is a kind of structural representation of the utility model.
Fig. 2 is the another kind of structural representation of the utility model.
Label among the figure is: 1. testing sample, 2. lens barrel, 3. lens carrier, 4. collecting lens, 5. hand-held Raman spectrometer main body, 6. guide spiro rod, 7. thread guide groove.
Embodiment
From Fig. 1, Fig. 2, can find out, a kind of hand-held Raman spectrometer focus control, it comprises lens carrier 3, collecting lens 4, and said lens carrier 3 is installed on hand-held Raman spectrometer main body 5 front ends, and collecting lens 4 is fixedly mounted in the lens carrier 3.Hand-held Raman spectrometer main body 5 and with being connected of lens carrier 3, belong to prior art, repeat no more.
The said lens carrier 3 of the utility model is a circular sleeve, and collecting lens 4 is fixedly mounted on rear portion in lens carrier 3 circular sleeves.Removable installation one lens barrel 2 in the place ahead of collecting lens 4 in lens carrier 3 circular sleeves.The internal diameter of lens carrier 3 circular sleeves is identical with the lens barrel external diameter, and lens barrel is embedded in the lens carrier 3, can in circular sleeve, move flexibly along the light beam of light source direction.Lens barrel 2 outer faces are glued with testing sample 1, through moving lens barrel 2, regulate the distance between testing sample 1 and the collecting lens 4, realize the focusing to the hand-held Raman spectrometer.
Fig. 1 is the structural representation of a kind of embodiment of the utility model.As shown in Figure 1, said lens carrier 3 is provided with internal thread, and lens barrel 2 is provided with external thread accordingly, and lens barrel 2 and lens carrier 3 threaded engagement rotate lens barrel 2, and it can move forward and backward along the light beam of light source direction in lens carrier 3.Testing sample 1 is close to lens barrel 2 outer faces, and the moving of lens barrel can drive testing sample and to move with respect to collecting lens along beam direction, and then the relative distance between flexible testing sample and the collecting lens.In rotating the lens barrel process, the spectral quality that can Real Time Observation collects through spectrum software stops lens barrel when maximum and moves when collecting sample spectra intensity, the i.e. best placement location of this sample in sample position this moment.
Fig. 2 is the structural representation of the another kind of embodiment of the utility model.As shown in Figure 2, said lens carrier 3 inner undersides are axially arranged with guide spiro rod 6, and lens barrel 2 downsides are axially arranged with the thread guide groove 7 that cooperates with said guide spiro rod 6, rotate guide spiro rod 6, can drive lens barrel and in lens carrier, move forward and backward along the light beam of light source direction.Testing sample 1 is close to lens barrel 2 outer ends, and the moving of lens barrel can drive sample and to move with respect to collecting lens along beam direction, and then the relative distance between flexible sample and the collecting lens.In rotating the process of guide spiro rod, the spectral quality that can Real Time Observation collects through spectrum software stops lens barrel when maximum and moves when collecting sample spectra intensity, the i.e. best placement location of this sample in sample position this moment.
Claims (3)
1. hand-held Raman spectrometer focus control, it comprises lens carrier, collecting lens, said lens carrier is installed on hand-held Raman spectrometer body front end; Collecting lens is fixedly mounted in the lens carrier; It is characterized in that: said lens carrier is a circular sleeve, removable installation one lens barrel in the place ahead of collecting lens in the circular sleeve, and testing sample is close in the lens barrel outer face; Through moving lens barrel, regulate the distance between testing sample and the collecting lens.
2. hand-held Raman spectrometer focus control according to claim 1; It is characterized in that: said lens carrier is provided with internal thread, and lens barrel is provided with external thread, lens barrel and lens carrier threaded engagement; Rotate lens barrel, it can move forward and backward along the light beam of light source direction in lens carrier.
3. hand-held Raman spectrometer focus control according to claim 1; It is characterized in that: said lens carrier inner underside is axially arranged with guide spiro rod; The lens barrel downside is axially arranged with the thread guide groove that cooperates with said guide spiro rod; Rotate guide spiro rod, can drive lens barrel and in lens carrier, move forward and backward along the light beam of light source direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220113312.XU CN202522518U (en) | 2012-03-23 | 2012-03-23 | Handheld Raman spectrometer focusing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220113312.XU CN202522518U (en) | 2012-03-23 | 2012-03-23 | Handheld Raman spectrometer focusing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202522518U true CN202522518U (en) | 2012-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220113312.XU Expired - Fee Related CN202522518U (en) | 2012-03-23 | 2012-03-23 | Handheld Raman spectrometer focusing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202522518U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621123A (en) * | 2012-03-23 | 2012-08-01 | 哈尔滨工业大学（威海） | Focusing device of handheld Raman spectrometer |
| CN104749103A (en) * | 2013-12-27 | 2015-07-01 | 同方威视技术股份有限公司 | Optical probe |
| CN105115960A (en) * | 2015-05-19 | 2015-12-02 | 钢研纳克检测技术有限公司 | Transmission-type prepositive optical path structure used for ICP spectrometer and having two-dimensional adjustable function |
| CN107064104A (en) * | 2017-04-07 | 2017-08-18 | 江苏师范大学 | A kind of portable minisize Raman spectrometer noncontact integrated sampling device |
-
2012
- 2012-03-23 CN CN201220113312.XU patent/CN202522518U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621123A (en) * | 2012-03-23 | 2012-08-01 | 哈尔滨工业大学（威海） | Focusing device of handheld Raman spectrometer |
| CN104749103A (en) * | 2013-12-27 | 2015-07-01 | 同方威视技术股份有限公司 | Optical probe |
| WO2015096774A1 (en) * | 2013-12-27 | 2015-07-02 | 同方威视技术股份有限公司 | Optical probe |
| CN105115960A (en) * | 2015-05-19 | 2015-12-02 | 钢研纳克检测技术有限公司 | Transmission-type prepositive optical path structure used for ICP spectrometer and having two-dimensional adjustable function |
| CN105115960B (en) * | 2015-05-19 | 2017-09-22 | 钢研纳克检测技术有限公司 | There is the preposition light channel structure of two-dimentional adjustable function transmission-type for ICP spectrometers |
| CN107064104A (en) * | 2017-04-07 | 2017-08-18 | 江苏师范大学 | A kind of portable minisize Raman spectrometer noncontact integrated sampling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20150323 |
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| EXPY | Termination of patent right or utility model |