CN108205143A - A kind of laser ranging system - Google Patents
A kind of laser ranging system Download PDFInfo
- Publication number
- CN108205143A CN108205143A CN201611182360.3A CN201611182360A CN108205143A CN 108205143 A CN108205143 A CN 108205143A CN 201611182360 A CN201611182360 A CN 201611182360A CN 108205143 A CN108205143 A CN 108205143A
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- Prior art keywords
- laser ranging
- image
- ranging system
- opto
- optical element
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- 230000003287 optical effect Effects 0.000 claims abstract description 55
- 230000005693 optoelectronics Effects 0.000 claims abstract description 34
- 238000005259 measurement Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 6
- 230000005622 photoelectricity Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Measurement Of Optical Distance (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
The invention discloses a kind of laser ranging systems, belong to laser ranging technique field.The laser ranging system includes a photoemission part, for emitting a measuring signal；One opto-electronic receiver part, for receiving the reflected measuring signal of measured target；One image receiving portion, for receiving measured target image；The optical axis of described image receiving portion and the optical axis of the opto-electronic receiver part are coaxial.Laser ranging system provided by the present invention has the characteristics that small, easy debugging, image reception are good.
Description
Technical field
The present invention relates to laser ranging technique fields more particularly to image to receive the hand-held Laser Measuring coaxial with opto-electronic receiver
Away from device.
Background technology
Laser ranging is widely used now, in hundred meters of fields of measurement generally using hand-held ranging product.Make for convenience
User observes and measures target point, and rangefinder generally selects visible ray as measuring signal, and when measuring indoors, laser measurement point can be with
By naked eyes it is visible in detail, but it is distant in the stronger outdoor of illumination in the case of, naked eyes be difficult tell laser measurement
Point, therefore in the rangefinder of outdoor application, need to increase the function of aiming at and measure target.At present, have some companies to have developed
Hand-hold Distance Finder with aiming function.In the range-finding system with aiming function, optical system is generally used
The parallel system of three axis is received for photoemission, opto-electronic receiver, image.This system is fairly simple in light path realization, mutually relevant
Disturb few, but three optical axis occupied spaces are big, and three optical axises are required to adjust during adjustment, and testing and measuring technology is relatively cumbersome.
Other enterprise develops image and receives and the coaxial optical system of photoemission, although reducing volume, letter
Change testing and measuring technology, but the volume very little of product is measured due to holding, it is small this requires emitting the transmitting aperture of light path, this
Sample is for image receiving light path, and for the visual field that image receives with regard to very little, the effect that image receives is just very poor, and observation is not achieved and surveys
Measure the ideal effect of target.
In view of this, a kind of new laser ranging system how is designed, to eliminate drawbacks described above of the prior art and not
Foot, is the subject that related technical personnel are urgently to be resolved hurrily in the industry.
Invention content
The technical issues of in order to overcome laser ranging system in the prior art, the present invention provides a kind of small, easy tune
The good laser ranging system of examination, image reception.
In order to achieve the above-mentioned object of the invention, the invention discloses a kind of laser ranging system, including a photoemission part,
For emitting a measuring signal；One opto-electronic receiver part, for receiving the reflected measuring signal of measured target；One figure
As receiving portion, for receiving measured target image；It is characterized in that, the optical axis of described image receiving portion and the photoelectricity connect
The optical axis of receiving portions is coaxial.
Further, the opto-electronic receiver part and described image receiving portion share an aspheric surface object lens, described non-
The side of spherical surface object lens has an optical element, and the optical axis of the optical element and described image receiving portion is at an angle to be put
It puts, the optical axis for making the optical axis of the opto-electronic receiver part and described image receiving portion is separated from each other.
Further, the optical element is a negativity optical filter.
Further, the negativity optical filter is used for reflected measurement signal wave band, and outside transmission measurement signal in band
Its all band.
Further, the optical element is a transflection spectroscope, which has a plated film, the plated film
For adjusting the ratio of the spectroscopical transmitted light of the transflection and reflected light.
Further, the ratio of the spectroscopical transmitted light of the transflection and reflected light is 2:8.
Further, the side of the optical element have a picture receiver, described image receiver be based on
An image collection chip of CMOS/CCD.
Further, the side of the optical element has a picture receiver, the optical element and described image
There is an image to receive eyepiece, described image receives eyepiece and forms an observing system with the aspheric surface object lens between receiver.
Further, the observing system is Galileo system or Kepler system.
Further, described image receiver is the camera based on CMOS/CCD.
Compared with prior art, technical solution provided by the present invention has the following advantages：Firstth, compared to existing skill
There is photoemission, opto-electronic receiver, image to receive the laser ranging system that three axis are arranged in parallel, provided herein swashs in art
The opto-electronic receiver and image of optical range finding apparatus receive coaxial setting, reduce the volume of laser ranging system, and simplify laser
The adjustment of range unit；Secondth, middle photoemission, image receive coaxial laser ranging system, this Shen compared with the prior art
The laser ranging system please provided, opto-electronic receiver is coaxial with image reception, and the clear aperature of opto-electronic receiver is compared with photoemission
Clear aperature it is big, so as to image receive visual field it is big, apparent, image reception is more preferable.
Description of the drawings
It can be obtained further by following detailed description of the invention and institute's accompanying drawings about the advantages and spirit of the present invention
Solution.
Fig. 1 is the structure diagram of the laser ranging system of first embodiment provided by the present invention；
Fig. 2 is the structure diagram of the laser ranging system of second embodiment provided by the present invention；
Fig. 3 is the structure diagram of the laser ranging system of 3rd embodiment provided by the present invention；
Fig. 4 is the measurement point image that picture receiver is received in laser ranging system provided by the present invention.
Specific embodiment
The specific embodiment that the invention will now be described in detail with reference to the accompanying drawings.However, the present invention should be understood as to not office
It is limited to this embodiment described below, and the technical concept of the present invention can be with other known technologies or function and those
The identical other technologies combination of known technology is implemented.
In the explanation of specific examples below, of the invention structure and working method in order to clearly demonstrate will be by all
Multidirectional word is described, but should by "front", "rear", "left", "right", " outer ", " interior ", " outside ", " inside ",
The Word Understandings such as " axial direction ", " radial direction " are not construed as word of limitation for convenience of term.In addition, in the following description,
" negativity optical filter ", i.e. notch filtering light piece are generally also referred to as band resistance or with inhibition filter.It can penetrate the overwhelming majority
Wavelength, but the light decay of (stopband) in particular range of wavelengths is reduced into extremely low level.
The purpose of the present invention is to provide a kind of laser ranging systems, realize and receive coaxial set by opto-electronic receiver and image
While putting to reduce laser ranging system volume, moreover it is possible to further improve image reception.
The 1-4 specific embodiments that the present invention will be described in detail below in conjunction with the accompanying drawings.
Laser ranging system provided by the present invention includes light source emitter, collimation lens, aspheric surface object lens, receives dress
It puts, optical element, picture receiver, light source emitter and collimation lens belong to photoemission part, opto-electronic receiver part and figure
As receiving portion shares same aspheric surface object lens, optical element is used for the optical axis of opto-electronic receiver part and image receiving portion
Optical axis be separated from each other, wherein, photoemission light path and the different axis of opto-electronic receiver light path, image receiving light path and opto-electronic receiver light path
It is coaxial.Laser ranging system provided by the present invention, the measurement point image that picture receiver is received over the display aobvious
Show as shown in figure 4, aiming point cross hairs and measurement point overlap.
First embodiment
Fig. 1 is the structure diagram of the laser ranging system of first embodiment provided by the present invention.As shown in Figure 1, this
The laser ranging system that invention provides has Galileo system, including light source emitter 11, collimation lens 12, aspheric surface object lens
13rd, reception device 14, optical element 15, picture receiver 16, image receive eyepiece 17, photoemission light path and opto-electronic receiver
The different axis of light path, image receiving light path and opto-electronic receiver light path are coaxial.Image receiving light path and opto-electronic receiver light path share one it is non-
Spherical surface object lens 13 are provided with an optical element 15 behind aspheric surface object lens 13, the optical element 15 for negativity optical filter with
Optical axis placement at an angle, this negativity optical filter 15 can remove laser with reflection laser measuring signal wave band in effective wave band
Measuring signal wave band, remaining wavelength region, after being reflected by the laser measurement signal of aspheric surface object lens 13 by negativity optical filter 15,
It is received by signal receiving device 14, this forms opto-electronic receiver light path.Image reception is provided with behind negativity optical filter 15
Eyepiece 16, this image receives eyepiece 16 and aspheric surface object lens 13 form Galileo system, receives in image and is put behind eyepiece 16
A camera based on COMS or CCD is put as picture receiver 16, receives and measures target image, form image and receive light
Road.
In this embodiment, image receiving light path and opto-electronic receiver light path are coaxial, and laser ranging system is small, the hole of reception
Diameter is big, and image reception is good, and testing and measuring technology is simple.
Second embodiment
Fig. 2 is the structure diagram of the laser ranging system of second embodiment provided by the present invention.As shown in Fig. 2, this
The laser ranging system that invention provides has Kepler system, including light source emitter 21, collimation lens 22, aspheric surface object lens
23rd, reception device 24, optical element 25, picture receiver 26, image receive eyepiece 27, photoemission light path and opto-electronic receiver
The different axis of light path, image receiving light path and opto-electronic receiver light path are coaxial.Laser ranging system in the present embodiment, with first embodiment
In laser ranging system compare that the difference lies in as the negativity optical filter 25 of optical element, be provided with one behind
Image receives eyepiece 27, this image receives eyepiece 27 and aspheric surface object lens 23 form Kepler system, and eyepiece 27 is received in image
Behind place a camera 27 based on COMS or CCD and be used as picture receiver 26, receive and measure target image, form figure
As receiving light path.
In this embodiment, image receiving light path and opto-electronic receiver light path are coaxial, and laser ranging system is small, the hole of reception
Diameter is big, and image reception is good, and testing and measuring technology is simple.
3rd embodiment
Fig. 3 is the structure diagram of the laser ranging system of 3rd embodiment provided by the present invention.As shown in figure 3, this
The laser ranging system that invention provides includes light source emitter 31, collimation lens 32, aspheric surface object lens 33, reception device 34, light
Element 35, image collection chip 36 are learned, photoemission light path and the different axis of opto-electronic receiver light path, image receiving light path and photoelectricity connect
It is coaxial to receive light path.Laser ranging system in the present embodiment, compared with the laser ranging system in first, second embodiment not
It is with part, as being provided with an Image Acquisition based on CMOS or CCD behind the negativity optical filter 35 of optical element
Chip 36, this image collection chip 36 and aspheric surface object lens 33 form image receiving light path, receive and measure target image.Image connects
It receives light path and opto-electronic receiver light path is coaxial, laser ranging system is small, and the aperture of reception is big, and image reception is good, debugging
It is simple for process.
Those skilled in the art should know, laser ranging system provided by the present invention, optical element in addition to for
Can also be transflection spectroscope other than negativity optical filter.In order to which photoelectricity receiving portion and image receiving portion have when ensureing to measure
Enough energy, transflection ratio need to have reasonable distribution, while need to eliminate the influence of stray light during transflection spectroscope plated film.One preferably
In embodiment, the ratio of the transmitted light and reflected light is 2:8.
Compared with prior art, laser ranging system provided by the present invention has the following advantages：Firstth, compared to existing
Having in technology, there is photoemission, opto-electronic receiver, image to receive the laser ranging system that three axis are arranged in parallel, provided herein
Laser ranging system opto-electronic receiver and image receive coaxial setting, reduce the volume of laser ranging system, and simplify
The adjustment of laser ranging system；Secondth, middle photoemission, image receive coaxial laser ranging system compared with the prior art,
Laser ranging system provided herein, opto-electronic receiver is coaxial with image reception, and the clear aperature of opto-electronic receiver is compared with photoelectricity
The clear aperature of transmitting is big, and so as to which the visual field of image reception is big, apparent, image reception is more preferable.
Unless otherwise instructed, the herein presented qualifier similar to " first ", " second " is not meant that suitable to the time
The restriction of sequence, quantity or importance, and be used for the purpose of a technical characteristic in the technical program and another technology
Feature is mutually distinguished.Similarly, the herein presented qualifier similar to " one " does not mean that the restriction to quantity, but describes
The technical characteristic not occurred above.Similarly, occur before number herein be similar to " about ", " approx "
Modifier generally comprises this number, and its specific meaning should combine context meaning and understand.Similarly, only have specific
Otherwise the noun of quantity quantifier modification should be regarded as i.e. comprising singulative again comprising plural form, herein in the technology
It can include a technical characteristic of odd number in scheme, a plurality of technical characteristics can also be included.
The preferred embodiment of the only present invention described in this specification, above example are only to illustrate the present invention
Technical solution rather than limitation of the present invention.All those skilled in the art pass through logic analysis, reasoning under this invention's idea
Or the limited available technical solution of experiment, it all should be within the scope of the present invention.
Claims (10)
1. a kind of laser ranging system, including a photoemission part, for emitting a measuring signal；One opto-electronic receiver part,
For receiving the reflected measuring signal of measured target；One image receiving portion, for receiving measured target image；Its
It is characterized in that, the optical axis of the optical axis of described image receiving portion and the opto-electronic receiver part is coaxial.
2. laser ranging system according to claim 1, which is characterized in that the opto-electronic receiver part and described image connect
Receiving portions share an aspheric surface object lens, and the sides of the aspheric surface object lens has an optical element, the optical element with it is described
The optical axis placement at an angle of image receiving portion, for making the optical axis of the opto-electronic receiver part and described image receiving portion
Optical axis be separated from each other.
3. laser ranging system according to claim 2, which is characterized in that the optical element is a negativity optical filter.
4. laser ranging system according to claim 3, which is characterized in that the negativity optical filter is believed for reflection measurement
Number wave band, and its all band outside transmission measurement signal in band.
5. laser ranging system according to claim 2, which is characterized in that the optical element is a transflection spectroscope,
The transflection spectroscope has a plated film, and the plated film is used to adjust the ratio of the spectroscopical transmitted light of the transflection and reflected light.
6. laser ranging system according to claim 5, which is characterized in that the spectroscopical transmitted light of the transflection and reflection
The ratio of light is 2:8.
7. laser ranging system according to claim 2, which is characterized in that the side of the optical element has an image
Receiver, described image receiver are the image collection chip based on CMOS/CCD.
8. laser ranging system according to claim 2, which is characterized in that the side of the optical element has an image
Receiver, between the optical element and described image receiver have an image receive eyepiece, described image receive eyepiece with
The aspheric surface object lens form an observing system.
9. laser ranging system according to claim 8, which is characterized in that the observing system is Galileo system or opens
General Le system.
10. laser ranging system according to claim 8, which is characterized in that described image receiver is based on CMOS/
A camera of CCD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611182360.3A CN108205143A (en) | 2016-12-20 | 2016-12-20 | A kind of laser ranging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611182360.3A CN108205143A (en) | 2016-12-20 | 2016-12-20 | A kind of laser ranging system |
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| Publication Number | Publication Date |
|---|---|
| CN108205143A true CN108205143A (en) | 2018-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611182360.3A Pending CN108205143A (en) | 2016-12-20 | 2016-12-20 | A kind of laser ranging system |
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| CN (1) | CN108205143A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113325390A (en) * | 2021-05-29 | 2021-08-31 | 北京波谱华光科技有限公司 | Three-light axis adjusting method and system in fixed structure |
| CN114459290A (en) * | 2021-12-30 | 2022-05-10 | 中国人民解放军总参谋部第六十研究所 | Self-ranging type shooting training process measuring device |
| CN114659406A (en) * | 2022-04-11 | 2022-06-24 | 重庆爱特光电有限公司 | High-precision laser ranging method and device combined with reflective optical system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990012330A2 (en) * | 1989-04-13 | 1990-10-18 | Measurement Devices Limited | Hand-held laser rangefinder |
| GB0019878D0 (en) * | 1999-09-07 | 2000-09-27 | Asia Optical Co Ltd | Technique for increasing optical signal/noise ratio of laser ranger finder |
| CN201885637U (en) * | 2010-11-22 | 2011-06-29 | 宁波舜宇电子有限公司 | Laser-ranging sighting telescope |
| EP2843440A1 (en) * | 2013-08-28 | 2015-03-04 | Vectronix AG | Stabilised distance measurement in an observation device |
-
2016
- 2016-12-20 CN CN201611182360.3A patent/CN108205143A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990012330A2 (en) * | 1989-04-13 | 1990-10-18 | Measurement Devices Limited | Hand-held laser rangefinder |
| GB0019878D0 (en) * | 1999-09-07 | 2000-09-27 | Asia Optical Co Ltd | Technique for increasing optical signal/noise ratio of laser ranger finder |
| CN201885637U (en) * | 2010-11-22 | 2011-06-29 | 宁波舜宇电子有限公司 | Laser-ranging sighting telescope |
| EP2843440A1 (en) * | 2013-08-28 | 2015-03-04 | Vectronix AG | Stabilised distance measurement in an observation device |
Non-Patent Citations (1)
| Title |
|---|
| 李恒德: "现代材料科学与工程辞典", 山东科学技术出版社, pages: 650 - 651 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113325390A (en) * | 2021-05-29 | 2021-08-31 | 北京波谱华光科技有限公司 | Three-light axis adjusting method and system in fixed structure |
| CN114459290A (en) * | 2021-12-30 | 2022-05-10 | 中国人民解放军总参谋部第六十研究所 | Self-ranging type shooting training process measuring device |
| CN114459290B (en) * | 2021-12-30 | 2024-04-26 | 中国人民解放军总参谋部第六十研究所 | From range finding formula shooting training process measuring device |
| CN114659406A (en) * | 2022-04-11 | 2022-06-24 | 重庆爱特光电有限公司 | High-precision laser ranging method and device combined with reflective optical system |
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Application publication date: 20180626 |