CN201163267Y - Alignment focusing collimation mechanism for optical detector - Google Patents
Alignment focusing collimation mechanism for optical detector Download PDFInfo
- Publication number
- CN201163267Y CN201163267Y CNU2008201040754U CN200820104075U CN201163267Y CN 201163267 Y CN201163267 Y CN 201163267Y CN U2008201040754 U CNU2008201040754 U CN U2008201040754U CN 200820104075 U CN200820104075 U CN 200820104075U CN 201163267 Y CN201163267 Y CN 201163267Y
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- pipe
- focusing
- sample cell
- optical detection
- laser head
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Abstract
The utility model discloses a centering, focusing and collimating mechanism for an optical detection device, wherein, optical elements to be detected including a luminotron, a focusing tube and a lighting tube are respectively arranged on both ends of a sample pool by having the same axle center, and connection between the lighting tube and the sample pool, connection between the luminotron and the focusing tube, and connection between the focusing tube and the sample pool are all fine threaded fit; and simultaneously the luminotron is a combined structure for fine threaded fit between a laser head tube and a lens assembly tube. The centering, focusing and collimating mechanism for the optical detection device realizes coaxial centering of a laser head, a lens assembly, a focusing lens and a lighting lens, simultaneously realizes the functions of collimation and focal length adjustment and is very convenient to operate.
Description
(1) technical field:
The utility model relates to a kind of optical detection apparatus, is optical detection apparatus centering focusing collimation mechanism specifically.
(2) background technology:
It is optical detecting method that the composition measurement of small objects such as the particulate in liquid, the gaseous sample, dust is adopted usually; with liquid, gaseous sample is the center; focus on liquid, the gaseous sample by a cover optical instrument with laser in a side; the opposite side that is imaged on of liquid, gaseous sample is gathered by another set of optical instrument; and carry out analyzing and processing by photo-electric particle numeration sensor or Photoelectric Detection head, draw the content ratio of particle in certain quantity of fluid, the gaseous sample or impurity.Because this optical detecting method is precision measurement, require very high to employed optical detection apparatus, not only the interior quality to laser head and various optical instruments requires high, and their locus also there is very high requirement, such as liquid, the Laser emission of gaseous sample both sides, collimation focuses on and the imaging collection, all require to be on same the axis and can regulate, and most of existing optical detection apparatuss in design, with Laser emission, collimation focuses on and the imaging collection is all independent respectively is provided with and all can adjusts in the horizontal and vertical directions, though make it can reach Laser emission, collimation focuses on and the imaging collection is adjusted in the purpose of finishing on same the axis, but not only will be by rule of thumb during concrete operations, also need to spend long time, particularly want this optical detection apparatus difficulty of independent operation very big for new hand.Because it is not in place that various conditions are finished, and causes the error in the detection easily, makes the measurement result distortion.
(3) utility model content:
Inconvenient and inaccurate in the adjusting of aspects such as Laser emission, collimation focusing and imaging collection at above-mentioned optical detection apparatus, technical solution of the present utility model has provided a kind of concentricity height, the centering of optical detection apparatus efficiently easy to adjust focusing collimation mechanism.
Can realize the optical detection apparatus centering focusing collimation mechanism of above-mentioned technical solution, comprise fixed sample sample cell, place on the sample cell one side position regulating device laser head lens combination and condenser lens with place the relative opposite side apparatus for adjusting position of sample cell on the daylighting lens, different is: the apparatus for adjusting position of sample cell both sides is luminotron, focusing pipe and the lighting tube of concentric, side at sample cell, one end of focusing pipe cooperates installation in the mode of screw thread with sample cell, the other end that focuses on pipe is connected with luminotron; At the opposite side of sample cell, an end of lighting tube cooperates installation in the mode of screw thread with sample cell; Condenser lens and daylighting lens lay respectively at and focus in pipe and the close pore of sample cell one side of lighting tube, and the laser head lens combination is arranged in the pore of luminotron.
As mentioned above, the luminotron of sample cell both sides concentric, focusing pipe and lighting tube have guaranteed the requirement of optical detection apparatus to laser head lens combination, condenser lens and daylighting lens centering, focusing pipe, lighting tube produce displacement by the mode and the sample cell of threaded adjusting, have realized the function that the optical detection apparatus focal length is adjusted.
It can be fixedly connected or flexible connection that described luminotron is connected with the concentric that focuses on pipe, after connecting with fixed form, and the fixed distance between laser head lens combination and the condenser lens, its focussed collimated is constant.But at most optical detection apparatus, require focussed collimated to adjust, and require luminotron and focus on pipe to flexibly connect, therefore can adopt the mode of screw thread that luminotron is connected with the focusing pipe according to different lasing light emitters.For adapting to different LASER Light Source, make the parallel beam that sends from lens combination in axis, also require laser head and the distance between the lens combination in the luminotron adjustable, therefore luminotron adopts the unitized construction of the lens combination pipe and the laser head pipe that comprise concentric, the lens combination pipe is connected with the mode of laser head pipe with screw thread, and the laser head pipe is connected with the focusing pipe in the mode of screw thread.Lighting tube and focusing pipe are fastened at sample cell with locking device with both after adjust the position on the sample cell, to prevent that in use lighting tube with focusing on to manage the generation position deviation takes place to become flexible, influence testing result.
The simplest locking device is with lighting tube and focuses on the pipe thread nut engaged that the nut after tightening is forced tightly on sample cell.Foregoing description be one group of luminotron, focus on the situation of pipe and lighting tube, in fact the both sides of sample cell different directions can be provided with the multi-group light-emitting pipe, focus on pipe and lighting tube, and multi-group light-emitting pipe, focusing pipe and lighting tube are uniformly distributed in the both sides of sample cell different directions.Generally speaking, sample cell is arranged to the tetragonal body shape, and the sample cell of tetragonal body shape can dispose two groups of luminotrons, focus on pipe and lighting tube, two groups of luminotrons, focuses on the be placed in both sides, all around of sample cell of pipe and lighting tubes.In order to make threaded adjusting is meticulous adjustment, and the described screw thread that is connected preferably adopts fine thread.
Lens combination in the above-mentioned laser head lens combination is made of three optical lenses.
Advantage of the present utility model:
1, the luminotron of the utility model optical detection apparatus centering focusing collimation mechanism, focus on pipe and lighting tube and be connected the both sides of sample cell with the mode concentric of screw thread, realized in simple mode in the coaxial pair of laser head lens combination, condenser lens and daylighting lens.
2, the luminotron of the utility model optical detection apparatus centering focusing collimation mechanism, focus on the thread connecting mode of pipe and lighting tube, reached the function of collimation adjustment, focus adjustment simultaneously, easy to operate.
3, the utility model optical detection apparatus centering focusing collimation mechanism can dispose the multi-group light-emitting pipe, focus on pipe and lighting tube, can carry out the detection of different content simultaneously to same sample, and efficient height, speed are fast.
(4), description of drawings:
Fig. 1 is the structure cut-away view of a kind of embodiment of the utility model.
Figure number sign: 1, sample cell; 2, condenser lens; 3, daylighting lens; 4, focus on pipe; 5, lighting tube; 6, lens combination pipe; 7, laser head pipe; 8, laser head; 9, lens combination; 10, nut; 11, sample.
(5) embodiment:
In the utility model embodiment as shown in Figure 1, the luminotron that optical detection apparatus centering focusing collimation mechanism comprises sample cell 1, be made of laser head pipe 7 and lens combination pipe 6, focus on pipe 4 and lighting tube 5 etc.Wherein the center of optical detection apparatus centering focusing collimation mechanism is the square body shape sample cell 1 of hollow, detected sample 11 vertically is set in the sample cell 1, concentric offers the closely-pitched internal thread hole that communicates with inner chamber on the left and right sides end face of sample cell 1, what the right side of sample cell 1 was arranged is horizontal lighting tube 5, lighting tube 5 left end pipe faces are got on the bus and are shaped on closely-pitched external thread with sample cell 1 right side closely-pitched screw-internal thread fit, vertical fixing is provided with daylighting lens 3 in lighting tube 5 pores of closely-pitched external thread one side, also be combined with nut 10 on the closely-pitched external thread of lighting tube 5, lighting tube 5 is with after sample cell 1 is threaded, and nut 10 is forced tightly on sample cell 1 right side that lighting tube 5 is fixing with sample cell 1.As shown in Figure 1, what the left side of sample cell 1 was arranged is horizontal focusing pipe 4, focusing on pipe 4 right-hand member pipe faces gets on the bus and is shaped on closely-pitched external thread with sample cell 1 left side closely-pitched screw-internal thread fit, vertical fixing is provided with condenser lens 2 in the pore of closely-pitched external thread one side focusing pipe 4, also be combined with nut 10 on the closely-pitched external thread of focusing pipe 4, after focusing on pipe 4 and sample cell 1 being threaded, nut 10 is forced and tightly will be focused on pipe 4 and sample cell 1 is fixed on sample cell 1 left side.
As shown in Figure 1, focus on pipe 4 left end pores and offer the closely-pitched internal thread; Offer and focus on the closely-pitched external thread of pipe 4 left end closely-pitched screw-internal thread fit on the right-hand member pipe face of laser head pipe 7, be fixed with laser head 8 with solid gum in the left end pore of laser head pipe 7, offer the closely-pitched internal thread in the right-hand member pore of laser head pipe 7; The pipe face of lens combination pipe 6 is got on the bus and is shaped on closely-pitched external thread with laser head pipe 7 right-hand member closely-pitched screw-internal thread fit, is vertically installed with three optical lenses 9 in the lens combination pipe 6.Lens combination pipe 6 threaded engagement then are that laser head pipe 7 threaded engagement are in focusing on pipe 4 pipes in laser head pipe 7 pipes during assembling.
As shown in Figure 1, lens combination pipe 6 can be in laser head pipe 7 pipe the left and right adjusting distance, laser head pipe 7 can be managed left and right adjusting distance in 4 in focusing, focus on pipe 4 can be on sample cell 1 the left and right adjusting distance, lighting tube 5 can be on sample cell 1 the left and right adjusting distance, and above-mentioned all adjustings all are to finish on same axis, have demonstrated fully centering, the collimation adjustment of the utility model optical detection apparatus centering focusing collimation mechanism, the functional characteristic of focus adjustment.
Another group laser head pipe 7, lens combination pipe 6 also can be installed on the front/rear end of sample cell 1 simultaneously, focus on pipe 4 and lighting tube 5, its structure and installation method are consistent with foregoing.
Claims (9)
1, optical detection apparatus centering focusing collimation mechanism, comprise sample cell (1), place laser head lens combination and condenser lens (2) on sample cell (1) the one side position regulating device, place the daylighting lens (3) on sample cell (1) the opposite side apparatus for adjusting position, it is characterized in that: apparatus for adjusting position is respectively the luminotron of sample cell (1) one side concentric and focuses on pipe (4), the lighting tube (5) of sample cell (1) opposite side concentric, one end of focusing pipe (4) and lighting tube (5) cooperates installation in the mode of screw thread with sample cell (1), the other end that focuses on pipe (4) is connected with luminotron, condenser lens (2) and daylighting lens (3) lay respectively at and focus in pipe (4) and the close pore of sample cell (1) one side of lighting tube (5), and the laser head lens combination is arranged in the pore of luminotron.
2, optical detection apparatus centering focusing collimation mechanism according to claim 1, it is characterized in that: described luminotron is connected with the mode of focusing pipe (5) with screw thread.
3, optical detection apparatus centering focusing collimation mechanism according to claim 2, it is characterized in that: luminotron comprises the lens combination pipe (6) and the laser head pipe (7) of concentric, lens combination pipe (6) is connected with the mode of laser head pipe (7) with screw thread, laser head pipe (7) with focus on the mode of pipe (5) and be connected with screw thread, laser head (8) and lens combination (9) are placed in the pore of laser head pipe (7) and lens combination pipe (6).
4, according to any described optical detection apparatus centering focusing collimation mechanism in the claim 1～3, it is characterized in that: lighting tube (5) and focusing on is managed (4) and is provided with both are fastened at locking device on the sample cell (1).
5, according to the focusing of the optical detection apparatus centering described in the claim 4 collimation mechanism, it is characterized in that: locking device is with lighting tube (5) and focuses on the nut (10) of managing (4) threaded engagement.
6, according to the described optical detection apparatus centering focusing of claim 1～3 collimation mechanism, it is characterized in that: luminotron, focusing pipe (4) and lighting tube (5) are many groups, and are uniformly distributed in the both sides of sample cell (1) different directions.
7, optical detection apparatus centering according to claim 6 focusing collimation mechanism, it is characterized in that: sample cell (1) be the tetragonal body shape, two groups of luminotrons, focuses on and manages the be placed in both sides, all around of sample cell (1) of (4) and lighting tubes (5).
8, according to any described optical detection apparatus centering focusing collimation mechanism in the claim 1～3, it is characterized in that: described screw thread is a fine thread.
9, optical detection apparatus centering focusing collimation mechanism according to claim 3, it is characterized in that: lens combination (9) comprises three optical lenses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201040754U CN201163267Y (en) | 2008-02-02 | 2008-02-02 | Alignment focusing collimation mechanism for optical detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201040754U CN201163267Y (en) | 2008-02-02 | 2008-02-02 | Alignment focusing collimation mechanism for optical detector |
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| CN201163267Y true CN201163267Y (en) | 2008-12-10 |
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| CNU2008201040754U Expired - Fee Related CN201163267Y (en) | 2008-02-02 | 2008-02-02 | Alignment focusing collimation mechanism for optical detector |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252965A (en) * | 2011-04-21 | 2011-11-23 | 安徽蓝盾光电子股份有限公司 | PDA detector holding device |
| CN105988172A (en) * | 2016-01-26 | 2016-10-05 | 安徽蓝盾光电子股份有限公司 | Object distance fine adjustment system used for pipeline online TDLAS gas monitor |
| CN110324539A (en) * | 2019-07-19 | 2019-10-11 | 北京遥感设备研究所 | A kind of infrared imaging device tune shaft device and its application method |
| CN110711937A (en) * | 2019-11-14 | 2020-01-21 | 安徽同兴科技发展有限责任公司 | Parameter determination method for laser focusing of cutting machine |
| CN112379468A (en) * | 2020-11-25 | 2021-02-19 | 龙岩市帝昂光学有限公司 | Device for coating optical lens |
-
2008
- 2008-02-02 CN CNU2008201040754U patent/CN201163267Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252965A (en) * | 2011-04-21 | 2011-11-23 | 安徽蓝盾光电子股份有限公司 | PDA detector holding device |
| CN105988172A (en) * | 2016-01-26 | 2016-10-05 | 安徽蓝盾光电子股份有限公司 | Object distance fine adjustment system used for pipeline online TDLAS gas monitor |
| CN110324539A (en) * | 2019-07-19 | 2019-10-11 | 北京遥感设备研究所 | A kind of infrared imaging device tune shaft device and its application method |
| CN110711937A (en) * | 2019-11-14 | 2020-01-21 | 安徽同兴科技发展有限责任公司 | Parameter determination method for laser focusing of cutting machine |
| CN112379468A (en) * | 2020-11-25 | 2021-02-19 | 龙岩市帝昂光学有限公司 | Device for coating optical lens |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081210 Termination date: 20120202 |