CN203825196U - Internal and external optical-path switching device of laser range finder - Google Patents
Internal and external optical-path switching device of laser range finder Download PDFInfo
- Publication number
- CN203825196U CN203825196U CN201420078340.1U CN201420078340U CN203825196U CN 203825196 U CN203825196 U CN 203825196U CN 201420078340 U CN201420078340 U CN 201420078340U CN 203825196 U CN203825196 U CN 203825196U
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- Prior art keywords
- path switching
- switching device
- range finder
- light path
- laser range
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Abstract
The utility model discloses an internal and external optical-path switching device of a laser range finder. The internal and external optical-path switching device includes a casing. A laser emitting device and a light-signal receiving device are arranged in the casing. A fixed seat is also embedded in the casing. One side of the fixed seat, close to the laser transmitting device, is provided with a rectangular groove. A corresponding rotatable overturning plate is arranged in the groove. One side of the overturning plate is provided with a rotating shaft. A light-path through hole is also arranged in the groove. A reflecting plate opposite to the through hole is arranged. The reflecting plate is fixedly connected with the fixed seat. A driving device is arranged on the fixed seat. A driving device is in tooth connection with the rotating shaft. The lower end of the overturning plate is also fixedly provided with a block extending outwards. The internal and external optical-path switching device has the characteristics of being simple in structure, stable, interference resistant, low in noise and capable of realizing internal and external optical-path switching.
Description
Technical field
The utility model relates to laser ranging field, relates in particular to the inside and outside light path switching device of laser range finder.
Background technology
Laser range finder has easy to use, and measuring accuracy advantages of higher is widely used in fields such as building, explorations.The principle of laser range finder is generally divided into phase place, pulse, triangle etc.
Laser ranging system based on surveying Phase Difference Principle is the laser beam irradiation measured target with modulation, light beam turns back after measured target reflection, the phase place that light beam two-way process is produced changes, be converted into the distance of measured target, be applied to the high-precision range observation of short distance, the accuracy of its measurement and precision are subject to the impact of device inner components characteristic.The accuracy requirement of laser ranging instrument is higher, and the complexity of its circuit and the demand of accurate device just improve greatly.Therefore environmental factor, the impact on device performance of for example temperature and device serviceable life, the phase drift that causes device to produce is very important.The prior art additional phase shifts that utilize the phase difference compensation principle of inside and outside light path to eliminate Circuits System, guarantee that measurement data is not subject to the impact of external environment factor more, but because of complex structure, cost higher.
Utility model content
It is a kind of simple in structure, stable that the technical problems to be solved in the utility model is to provide, and anti-interference, noise is little, and inside and outside light path is switched a kind of inside and outside light path switching device of laser range finder accurately.
For solving the problems of the technologies described above, technical solution adopted in the utility model is, the inside and outside light path switching device of laser range finder, comprise housing, described housing comprises upper shell and lower house, in housing, be provided with laser beam emitting device and light signal receiving, in housing, be also embedded with holder, holder is provided with a rectangular recess near described laser beam emitting device one side, in groove, be provided with its corresponding rotatable turnover panel, turnover panel one side is provided with rotation axis, on groove, be also provided with light path through hole, be provided with reflector relative to described through hole, described reflector is fixedly connected with holder, holder is provided with drive unit, drive unit is connected with rotatory axis tooth, turnover panel lower end is also fixed with outward extending block.
The inside and outside light path switching device of above-mentioned laser range finder, wherein, described drive unit comprises motor and driving circuit.
The inside and outside light path switching device of above-mentioned laser range finder, wherein, described light signal receiving comprises receiver lens and photoelectric detector.
The inside and outside light path switching device of above-mentioned laser range finder, wherein, described housing side is also provided with dismountable cover plate.
The inside and outside light path switching device of above-mentioned laser range finder, wherein, described turnover panel and reflector are surface plate.
Beneficial functional of the present utility model is: simple in structure, stable, anti-interference, noise is little, and inside and outside light path is switched accurately.
Brief description of the drawings
Fig. 1 is the inside and outside light path switching device perspective view of laser range finder;
Fig. 2 is the perspective view that the inside and outside light path switching device of laser range finder removes upper shell;
Fig. 3 is the vertical view that the inside and outside light path switching device of laser range finder removes upper shell.
Reference numeral is:
1-housing, 11-upper shell, 12-lower house, 2-laser beam emitting device, 3-receiver lens, 31-photoelectric detector, 4-holder, 41-groove, 42-reflector, 5-drive unit, 6-turnover panel, 61-block, 7-cover plate.
Embodiment
Below in conjunction with accompanying drawing, structural principle of the present utility model and principle of work are described in detail: as Figure 1-3, the inside and outside light path switching device of laser range finder, comprise housing 1, described housing 1 comprises upper shell 11 and lower house 12, in housing 1, be provided with laser beam emitting device 2 and light signal receiving, generating device of laser 2 is for launching collimation laser, light signal receiving comprises receiver lens 3 and photoelectric detector 31, receiver lens 3 is non-spherical lens, be photoelectric detector 31 at the other end corresponding to receiver lens 3 optical axis directions, photoelectric detector 31 can be avalanche diode.Housing 1 is embedded with holder 4, holder 4 is provided with a rectangular recess 41 near described laser beam emitting device 2 one sides, in groove 41, be provided with its corresponding rotatable turnover panel 6, turnover panel 6 one sides are provided with rotation axis, are also provided with light path through hole on groove 6, be provided with reflector 42 relative to described through hole, described reflector 42 is fixedly connected with holder 4, holder 4 is provided with drive unit 5, and drive unit 5 is connected with rotatory axis tooth, and turnover panel 6 lower ends are also fixed with outward extending block.
In Fig. 1, holder 4 is embedded in casing 1,5 of drive unit is fixed on holder 4, the rotation axis of turnover panel 6 is connected with the motor output end tooth of drive unit 5, cover plate 7 covers on holder 4, drive unit 5 and turnover panel 6, make housing 1 form a seal cavity, the noise of motor and the interference of parasitic light while having intercepted inside and outside light path switching.
Embodiment is: in the time of the driving circuit control machine operation of drive unit 5, turnover panel 6, along with motor output end rotates, occurs inside and outside light path two states.
In the time that driven by motor turnover panel 6 turns to position shown in Fig. 2, turnover panel 6 embeds in the groove 41 of holder 4, shelter from the light path through hole on groove 6, the laser that laser beam emitting device 2 is launched does not have restraining mass forwardly, the laser of transmitting directly exposes to testee, and the laser of now laser range finder transmitting forms outer light path.
In the time that driven by motor turnover panel 6 turns to position shown in Fig. 3, the block 61 that turnover panel 6 lower ends extend out contacts with housing 1, withstanding turnover panel 6 is rotated further, make turnover panel 6 be fixed on the position shown in Fig. 3, now Ear Mucosa Treated by He Ne Laser Irradiation is reflected after turnover panel 6, and the laser being reflected is irradiated on reflector 42 by the light path through hole on groove 41, by the reflection of reflector 42, the laser being reflected is received by photoelectric detector 31, and laser propagation light path is now interior light path.
Laser range finder is opened while not measuring at laser, and motor moment normal power-up after-current declines and remains on 15-20mA left and right, and turnover panel 6 is embedded in groove 41 all the time, and outer light path position has as shown in Figure 2 prevented that laser range finder from rotate turnover panel 6 because of vibrations; Laser range finder driving circuit in measurement situation is supplied with the electric current of the normal work of motor, and driven by motor turnover panel 6 rotates and is separated from groove 41, and interior light path is as shown in Figure 3 external; Also power-off of motor in the time of laser shutdown.
Certainly, the utility model also can have other various embodiments.In the situation that not deviating from the utility model spirit and essence thereof; those of ordinary skill in the art are when making various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (5)
1. the inside and outside light path switching device of a laser range finder, comprise housing, described housing comprises upper shell and lower house, in housing, be provided with laser beam emitting device and light signal receiving, it is characterized in that, in housing, be also embedded with holder, holder is provided with a rectangular recess near described laser beam emitting device one side, in groove, be provided with its corresponding rotatable turnover panel, turnover panel one side is provided with rotation axis, on groove, be also provided with light path through hole, be provided with reflector relative to described through hole, described reflector is fixedly connected with holder, holder is provided with drive unit, drive unit is connected with rotatory axis tooth, turnover panel lower end is also fixed with outward extending block.
2. the inside and outside light path switching device of laser range finder as claimed in claim 1, is characterized in that, described drive unit comprises motor and driving circuit.
3. the inside and outside light path switching device of laser range finder as claimed in claim 1, is characterized in that, described light signal receiving comprises receiver lens and photoelectric detector.
4. the inside and outside light path switching device of laser range finder as claimed in claim 1, is characterized in that, described housing side is also provided with dismountable cover plate.
5. the inside and outside light path switching device of laser range finder as claimed in claim 1, is characterized in that, described turnover panel and reflector are surface plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420078340.1U CN203825196U (en) | 2014-02-25 | 2014-02-25 | Internal and external optical-path switching device of laser range finder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420078340.1U CN203825196U (en) | 2014-02-25 | 2014-02-25 | Internal and external optical-path switching device of laser range finder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203825196U true CN203825196U (en) | 2014-09-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420078340.1U Expired - Fee Related CN203825196U (en) | 2014-02-25 | 2014-02-25 | Internal and external optical-path switching device of laser range finder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203825196U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564015A (en) * | 2014-12-22 | 2015-04-29 | 山东大学 | Boring laser speed measuring instrument of drilling machine |
| CN108803000A (en) * | 2017-04-26 | 2018-11-13 | 因德斯马特有限公司 | Optical module and light source device for endoscope including it |
| CN114488170A (en) * | 2022-01-21 | 2022-05-13 | 森思泰克河北科技有限公司 | Non-coaxial laser radar and laser radar ranging compensation method |
-
2014
- 2014-02-25 CN CN201420078340.1U patent/CN203825196U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564015A (en) * | 2014-12-22 | 2015-04-29 | 山东大学 | Boring laser speed measuring instrument of drilling machine |
| CN108803000A (en) * | 2017-04-26 | 2018-11-13 | 因德斯马特有限公司 | Optical module and light source device for endoscope including it |
| CN114488170A (en) * | 2022-01-21 | 2022-05-13 | 森思泰克河北科技有限公司 | Non-coaxial laser radar and laser radar ranging compensation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU LAITZ OPTOELECTRONIC TECHNOLOGY CO., LTD. Free format text: FORMER NAME: JIANGSU LAIZI OPTOELECTRONICS TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 213012 Jiangsu province Changzhou City Zhonglou District Longcheng Road No. 2188 gate of the new science and Technology Industrial Park Building No. 11 Patentee after: JIANGSU LAITZ OPTOELECTRONICS TECHNOLOGY Co.,Ltd. Address before: 213012 Jiangsu province Changzhou City Zhonglou District Longcheng Road No. 2188 gate of the new science and Technology Industrial Park Building No. 11 Patentee before: JIANGSU LAITZ OPTOELECTRONICS TECHNOLOGY Co.,Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213012 Jiangsu province Changzhou City Zhonglou District Longcheng Road No. 2188 gate of the new science and Technology Industrial Park Building No. 11 Patentee after: Jiangsu laitz intelligent equipment Polytron Technologies Inc. Address before: 213012 Jiangsu province Changzhou City Zhonglou District Longcheng Road No. 2188 gate of the new science and Technology Industrial Park Building No. 11 Patentee before: JIANGSU LAITZ OPTOELECTRONICS TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20161027 Address after: 213012 Jiangsu province Changzhou City Zhonglou District Road No. 2188 New Dragon Gate Industrial Park 11 3 floor Patentee after: JIANGSU LAITZ MEASURING& CONTROL TECHNOLOGY Co.,Ltd. Patentee after: Qiao Baiwen Address before: 213012 Jiangsu province Changzhou City Zhonglou District Longcheng Road No. 2188 gate of the new science and Technology Industrial Park Building No. 11 Patentee before: Jiangsu laitz intelligent equipment Polytron Technologies Inc. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20210225 |