CN207096454U - A kind of laser range finder - Google Patents
A kind of laser range finder Download PDFInfo
- Publication number
- CN207096454U CN207096454U CN201721140523.1U CN201721140523U CN207096454U CN 207096454 U CN207096454 U CN 207096454U CN 201721140523 U CN201721140523 U CN 201721140523U CN 207096454 U CN207096454 U CN 207096454U
- Authority
- CN
- China
- Prior art keywords
- housing
- laser
- photoelectric detector
- laser generator
- range finder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
It the utility model is related to a kind of laser range finder.The device includes the housing of tubular, laser generator is provided with the housing, for receiving the photoelectric detector of reflection measurement light and apart from counting circuit part, the collimator objective that laser generator emitted light is transformed into alignment measurement light beam is provided with positioned at the housing of laser generator transmitting terminal, the reception object lens for being used for receiving the reflection measurement light reflected from testee are provided with positioned at the housing of photoelectric detector receiving terminal, the housing afterbody is provided with end cap, display module is connected with the outside of the end cap, the laser generator, photoelectric detector and display module electrically connect with apart from counting circuit part.Because the transmitting terminal of laser generator is set with collimator objective zero distance, and photoelectric detector is set with receiving object lens zero distance, therefore laser can be avoided to be flown inside rangefinder, so as to simplify operating process, makes measurement result more accurate.
Description
Technical field
Rangefinder technical field is the utility model is related to, more particularly to a kind of laser range finder.
Background technology
Laser range finder is the instrument for carrying out Accurate Determining to the distance of target using laser.Laser range finder is at work
A branch of very thin laser is projected to target, the laser beam of target reflection is received by photoelectric cell, timer determines laser beam from hair
The time of reception is mapped to, is calculated from observer's range-to-go.Laser range finder has that easy to use, measurement is accurate, surveys
Time short remarkable advantage is measured, therefore is used widely in numerous areas such as building, explorations.
The patent of entitled laser range finder is disclosed in existing Chinese patent database, its number of patent application is：
201020241114.2 the applying date is：2010.06.28, Authorization Notice No. is：CN201765325U, authorized announcement date are：
2011.03.16 the device includes laser generator；Transmitting terminal positioned at laser generator, by laser generator emitted light
It is transformed into the collimator objective of alignment measurement light beam；Receive the reflection measurement light reflected from testee and make what it was imaged
Receive object lens；It is placed in inside laser range finder, receives the photoelectric detector of reflection measurement light；And it is arranged at alignment measurement light beam
Light path converting mechanism on propagation path, it is characterised in that the light path converting mechanism includes being arranged on collimated light around a rotating shaft
Lu Shang, it can be rotated to a blocking position and a reflector for allowing open position, the power set that power is provided to the reflector,
One limits the stopping means of the reflective Board position.It is disadvantageous in that：Because the device is will to measure light by reflector
Calculated in the distance of rangefinder internal communication, and actual measurement distance be by measurement result by inside rangefinder away from
From deduction, outer distance is obtained, the structure is relatively complicated, and operating method is complicated, and measurement distance result accuracy is poor.
Utility model content
The purpose of this utility model is in view of the deficienciess of the prior art, providing that a kind of measurement distance is more accurate, knot
The simpler laser range finder of structure.
In order to realize the purpose of above-mentioned utility model, technical solution adopted in the utility model：
A kind of laser range finder, include the housing of tubular, laser generator is provided with the housing, is surveyed for receiving reflection
Measure the photoelectric detector of light and apart from counting circuit part, be provided with positioned at the housing of laser generator transmitting terminal and send out laser
Raw device emitted light is transformed into the collimator objective of alignment measurement light beam, and the housing positioned at photoelectric detector receiving terminal is provided with
For receiving the reception object lens of the reflection measurement light reflected from testee, the housing afterbody is provided with end cap, the end
Outer side of lid is connected with display module, the laser generator, photoelectric detector and display module with apart from counting circuit portion
Part electrically connects.
During utility model works, first select object to be measured, start laser generator while electric signal reach away from
From counting circuit part, light beam becomes measuring beam by collimator objective caused by laser generator, and measuring beam is through measured object
Reached after body reflection and receive object lens, reach photoelectric detector through the reflection measurement light for receiving object lens, photoelectric detector believes light
It is transmitted to after number becoming electric signal apart from counting circuit part, is calculated and treated according to the time of laser flying apart from counting circuit part
The distance between measuring point and testee, measurement distance is sent directly on display module apart from counting circuit part, is easy to
Survey crew intuitively detects.
Further, battery module, the direct measurement laser for including being placed in housing apart from counting circuit part
The clock frequency counter of flight time and the microprocessor unit MCU calculated for data, the laser generator and light
Photodetector is connected with counter electric signal, the microprocessor unit MCU respectively with counter, battery module and display
Module electrically connects.
The photoelectric detector is avalanche photodide, PIN photodiode or other suitable Photoelectric Detection member devices
Part.
The counter is XilinxCoolRunner-II series using the low frequency counter of several megahertzs of count frequencies
CPLD chips.
In order to avoid the materials such as dust or rainwater damage the rangefinder, so that it is guaranteed that the rangefinder reliably works, simultaneously
Avoid light beam from being flown inside rangefinder, influence measurement result, the housing head is provided with heat resistant glass, the collimator objective one
Side is bonded with heat resistant glass, and opposite side is bonded with laser range finder transmitting terminal, and the reception object lens side is bonded with heat resistant glass,
Opposite side is bonded with the receiving terminal of photoelectric detector.
In order to ensure collimator objective and reception object lens are securely fixed on housing, collimator objective is fitted in heat-resisting through briquetting
On glass, receive object lens and be fitted in through briquetting on heat resistant glass.
In order to adjust the position of laser generator and photoelectric detector in housing, the laser generator is pacified through contiguous block
In housing, the photoelectric detector is arranged in housing through contiguous block.
Compared with prior art, the beneficial effects of the utility model are：Due to the transmitting terminal and collimation object of laser generator
Mirror zero distance is set, and photoelectric detector is set with receiving object lens zero distance, therefore laser can be avoided to be flown inside rangefinder,
So as to simplify operating process, make measurement result more accurate.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the schematic diagram apart from counting circuit part.
Wherein, 1 housing, 101 heat resistant glasses, 102 briquettings, 103 contiguous blocks, 2 laser generators, 3 photoelectric detectors, 4 away from
From counting circuit part, 401 battery modules, 402 counters, 403 microprocessor unit MCU, 5 collimator objectives, 6 receive object lens, and 7
End cap, 8 display modules.
Embodiment
With reference to specific embodiment, the utility model is further described：
Be a kind of laser range finder as described in Fig. 1 and 2, include the housing 1 of tubular, be provided with housing 1 laser generator 2,
For receiving the photoelectric detector 3 of reflection measurement light and apart from counting circuit part 4, in order to adjust laser generator 2 and light
Position of the photodetector 3 in housing 1, laser generator 2 are arranged in housing 1 through contiguous block 103, and photoelectric detector 3 is through even
Block 103 is connect in housing 1, photoelectric detector 3 is avalanche photodide, PIN photodiode or other suitable light
Electro-detection component, counter 402 are XilinxCoolRunner-II using the low frequency counter 402 of several megahertzs of count frequencies
Serial CPLD chips, further, include being placed in battery module 401 in housing 1 apart from counting circuit part 4, directly survey
The microprocessor unit MCU403 for measuring the clock frequency counter 402 of laser time of flight and being calculated for data, laser hair
Raw device 2 and photoelectric detector 3 are connected with the electric signal of counter 402, microprocessor unit MCU403 respectively with counter 402,
Battery module 401 and display module 8 are electrically connected, and the housing 1 positioned at the transmitting terminal of laser generator 2 is provided with laser generator
2 emitted lights are transformed into the collimator objective 5 of alignment measurement light beam, and the housing 1 positioned at the receiving terminal of photoelectric detector 3 is provided with
For receiving the reception object lens 6 of the reflection measurement light reflected from testee, in order to avoid the materials such as dust or rainwater damage
The bad rangefinder, so that it is guaranteed that the rangefinder reliably works, while avoids light beam from being flown inside rangefinder, influences measurement knot
Fruit, the head of housing 1 are provided with heat resistant glass 101, and the side of collimator objective 5 is bonded with heat resistant glass 101, opposite side and laser range finder
Transmitting terminal is bonded, and is received the side of object lens 6 and is bonded with heat resistant glass 101, opposite side is bonded with the receiving terminal of photoelectric detector 3, is
Ensure collimator objective 5 and receive object lens 6 to be securely fixed on housing 1, collimator objective 5 is fitted in heat-resisting glass through briquetting 102
On glass 101, receive object lens 6 and be fitted in through briquetting 102 on heat resistant glass 101, the afterbody of housing 1 is provided with end cap 7, and the outside of end cap 7 connects
Display module 8 is connected to, laser generator 2, photoelectric detector 3 and display module 8 apart from counting circuit part 4 with being electrically connected
Connect.
During work, object to be measured is selected first, and electric signal reaches counter 402 while starting laser generator 2, swashs
Light beam caused by optical generator 2 becomes measuring beam by collimator objective 5, and measuring beam reaches reception after testee reflects
Object lens 6, photoelectric detector 3 is reached through the reflection measurement light for receiving object lens 6, optical signal is become electric signal by photoelectric detector 3
After be transmitted to counter 402, counter 402 records laser time of flight between two electric signals, when counter 402 is by laser flying
Between pass to microprocessor unit MCU403, microprocessor unit MCU403 calculates tested point according to the time of laser flying
Measurement distance is sent directly on display module 8 by the distance between testee, microprocessor unit MCU403, is easy to survey
Amount personnel intuitively detect.
The utility model is not limited to above-described embodiment, on the basis of technical scheme disclosed in the utility model, this
The technical staff in field is according to disclosed technology contents, it is not necessary to which performing creative labour can is special to some of which technology
Sign makes some and replaces and deform, and these are replaced and deformed in the scope of protection of the utility model.
Claims (5)
- A kind of 1. laser range finder, it is characterised in that：Housing including tubular, the housing is interior to be provided with laser generator, is used for Receive the photoelectric detector of reflection measurement light and apart from counting circuit part, set on the housing of laser generator transmitting terminal There is the collimator objective that laser generator emitted light is transformed into alignment measurement light beam, positioned at photoelectric detector receiving terminal Housing is provided with the reception object lens for being used for receiving the reflection measurement light reflected from testee, and the housing afterbody is provided with end Lid, is connected with display module on the outside of the end cap, the laser generator, photoelectric detector and display module with apart from meter Calculate circuit block electrical connection.
- A kind of 2. laser range finder according to claim 1, it is characterised in that：It is described to include peace apart from counting circuit part Put the battery module in housing, the clock frequency counter of direct measurement laser time of flight and calculated for data micro- Processor unit MCU, the laser generator and photoelectric detector are connected with counter electric signal, the microprocessor unit MCU electrically connects with counter, battery module and display module respectively.
- A kind of 3. laser range finder according to claim 1 or 2, it is characterised in that：The housing head is provided with heat-resisting glass Glass, the collimator objective side are bonded with heat resistant glass, and opposite side is bonded with laser range finder transmitting terminal, the reception object lens one Side is bonded with heat resistant glass, and opposite side is bonded with the receiving terminal of photoelectric detector.
- A kind of 4. laser range finder according to claim 3, it is characterised in that：Collimator objective is fitted in heat-resisting glass through briquetting On glass, receive object lens and be fitted in through briquetting on heat resistant glass.
- A kind of 5. laser range finder according to claim 4, it is characterised in that：The laser generator is installed through contiguous block In housing, the photoelectric detector is arranged in housing through contiguous block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721140523.1U CN207096454U (en) | 2017-09-07 | 2017-09-07 | A kind of laser range finder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721140523.1U CN207096454U (en) | 2017-09-07 | 2017-09-07 | A kind of laser range finder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207096454U true CN207096454U (en) | 2018-03-13 |
Family
ID=61540541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721140523.1U Expired - Fee Related CN207096454U (en) | 2017-09-07 | 2017-09-07 | A kind of laser range finder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207096454U (en) |
-
2017
- 2017-09-07 CN CN201721140523.1U patent/CN207096454U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180313 Termination date: 20210907 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |