CN108931778A - A kind of coaxial range-finding telescope and its distance measuring method - Google Patents
A kind of coaxial range-finding telescope and its distance measuring method Download PDFInfo
- Publication number
- CN108931778A CN108931778A CN201710390620.4A CN201710390620A CN108931778A CN 108931778 A CN108931778 A CN 108931778A CN 201710390620 A CN201710390620 A CN 201710390620A CN 108931778 A CN108931778 A CN 108931778A
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- Prior art keywords
- light
- color separation
- infrared
- polarizing film
- wave
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Classifications
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- 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
-
- 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
- G01S17/86—Combinations of lidar systems with systems other than lidar, radar or sonar, e.g. with direction finders
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
- G01S7/4811—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver
- G01S7/4812—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver transmitted and received beams following a coaxial path
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Astronomy & Astrophysics (AREA)
- Optics & Photonics (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
The present invention relates to a kind of coaxial range-finding telescope and its distance measuring methods.Range-measurement system and telescopic system fusion in an object lens, to wherein imaging moiety, emitting portion, receiving portion, are carried out branch by the present invention；The system object lens be it is shared, transmitting and receptor area can be increased to greatest extent, at the same guarantee range-finding telescope minimize；Optical treatment is carried out to three tunnel branches using quarter-wave plate, polarizing film, color separation film；Relative to technical background, present invention imaging light passing amount is big, and the surface of emission is big, and it is strong to receive signal；The present invention be divided with infrared band using color separation film to visible light wave range；The infrared spectroscopy of transmitting infrared waves and receiving is handled using quarter-wave plate and polarizing film, guarantees that each branch can carry out Individual optical processing, finally realizes light path coaxial.
Description
Technical field
The present invention relates to a kind of coaxial range-finding telescope and its distance measuring methods.
Background technique
Range-finding telescope is a kind of laser range finder for being fused together range-measurement system and telescopic system, allows to collect
Observation and measurement function are in one.Range-finding telescope：It is directed at testee by cursor using telescopic system, triggering laser irradiation arrives
Then testee receives its signal, be finally the light velocity, t according to s=c*t/2, c received letter after laser triggering with receiver
Number time difference.
Range-finding telescope optical path includes imaging optical path, emits optical path, receives three tunnel of optical path at present.Emit optical path and receives light
Road can be combined with imaging optical path, can integrally become two-way light.Light passing is imaged in prior art range-measurement system and telescopic system
Measure small, volume is big, and technique is more, and integrated installation difficulty is big.
Summary of the invention
In order to solve the above technical problems, the first purpose of the invention is to provide a kind of small in size, measurement stablize and
The coaxial range-finding telescope of three tunnel optical paths, a second object of the present invention is to provide the distance measuring methods of the telescope.
In order to realize above-mentioned first goal of the invention, present invention employs technical solutions below：
A kind of coaxial range-finding telescope, including telescope main body, the telescope main body includes a shell, on the shell
Equipped with eyepiece and objective lens, polarizing film, color separation are successively additionally provided with towards objective lens by eyepiece end between the eyepiece and objective lens
Piece and diaphragm, and the side of objective lens towards testee is additionally provided with quarter-wave plate, is equipped with laser ranging in the shell
Module, the laser ranging module include infrared transmitter and infrared remote receiver, and the infrared transmitter is described towards color separation film
Infrared remote receiver is additionally provided with focus lamp towards polarizing film between infrared remote receiver and polarizing film.
Preferably：The light and color separation film angle at 45 ° of the infrared transmitter transmitting, and in infrared transmitter
The polarizer is additionally provided between color separation film.
Preferably：The infrared remote receiver receives the light and polarizing film angle at 45 ° of color, and polarizing film with point
Color chips is parallel to each other.
Preferably：The quarter-wave plate wave plate and polarizing film to the P/S wave of transmitting and received S/P wave into
Row light splitting, the color separation film are divided visible light wave range 380nm~780nm and infrared 905nm.
In order to realize above-mentioned second goal of the invention, present invention employs technical solutions below：
A kind of distance measuring method of coaxial range-finding telescope, which is characterized in that include the following steps：
A), RF transmitter, which emits beam, becomes linearly polarized light P/S wave by the polarizer, or is directly sent out by infrared ray
Emitter issues linearly polarized light P/S wave；Linearly polarized light is got on 45 degree of color separation film, and the light direction of propagation changes into 90 degree, vibration
Direction of vibration is still perpendicular to the light direction of propagation；
B), when light passes through polarizing film consistent with polarization of light direction, any change directly does not occur for the property of light
By with optical axis at 45 degree of polarizing films；
C), light passes through quarter-wave plate along optical axis, and first time phase postpones；Light passes through 10~3000m
Propagation after, after the reflective surface of testee, propagate 10~3000m enter quarter-wave plate, second of phase
Position postpones；Light direction of vibration becomes parallel to optical axis by original direction of vibration vertical optical axis；
D), when the light that direction of vibration is parallel to optical axis is irradiated into the polarizing film of 45 degree of settings again, light will not be by
Pass through, but 90 degree are reflected into infrared remote receiver.
The present invention in an object lens, to wherein imaging moiety, emitting portion, connects range-measurement system and telescopic system fusion
Receiving portions carry out branch；The system object lens be it is shared, transmitting and receiving area can be increased to greatest extent, while guaranteeing to survey
It is minimized away from telescope；Optical treatment is carried out to three tunnel branches using quarter-wave plate, polarizing film, color separation film；Relative to skill
Art background, this patent imaging light passing amount is big, and the surface of emission is big, and it is strong to receive signal；The present invention using color separation film to visible light wave range with
Infrared band be divided；Using quarter-wave plate and polarizing film to the infrared spectroscopy of transmitting infrared waves and receiving at
Reason, guarantees that each branch can carry out Individual optical processing, finally realizes light path coaxial.
Detailed description of the invention
Fig. 1 is light path principle schematic diagram of the invention.
Fig. 2 is structural schematic diagram of the invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", " clockwise ", " inverse
The orientation or positional relationship of the instructions such as hour hands " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description originally
Invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific side
Position construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two
It is a or more than two, unless otherwise restricted clearly.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, two members can also be can be indirectly connected through an intermediary
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be
Concrete meaning in bright.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
A kind of coaxial range-finding telescope as depicted in figs. 1 and 2, including telescope main body, the telescope main body include
One shell, the shell are equipped with eyepiece 6 and objective lens 2, it is characterised in that：By eyepiece 6 between the eyepiece 6 and objective lens 2
End is successively additionally provided with polarizing film 3, color separation film 4 and diaphragm 5 towards objective lens 2, and objective lens 2 are also set towards the side of testee
There is quarter-wave plate wave plate 1, is equipped with laser ranging module in the shell, the laser ranging module includes infrared transmitter
10 and infrared remote receiver 9, for the infrared transmitter 10 towards color separation film 4, the infrared remote receiver 9 is and infrared towards polarizing film 3
Focus lamp 7 is additionally provided between receiver 9 and polarizing film 3.
The light and the angle at 45 ° of color separation film 4 that the infrared transmitter 10 emits, and in infrared transmitter 10 and color separation film
The polarizer 8 is additionally provided between 4.The infrared remote receiver 9 receives the light and the angle at 45 ° of polarizing film 3 of color, and polarizing film 3 with
Color separation film 4 is parallel to each other.The quarter-wave plate wave plate 1 and the P/S wave of 3 pairs of polarizing film transmittings are carried out with received S/P wave
Light splitting, the color separation film 4 are divided visible light wave range 380nm~780nm and infrared 905nm.
A kind of distance measuring method of coaxial range-finding telescope, which is characterized in that include the following steps：
A), RF transmitter 10, which emits beam, becomes linearly polarized light P/S wave by the polarizer 5, or directly by infrared
Line transmitter 10 issues linearly polarized light P/S wave；Linearly polarized light is got on 45 degree of color separation film 4, and the light direction of propagation changes into 90
Degree, direction of vibration is still perpendicular to the light direction of propagation；
B), when light passes through polarizing film 3 consistent with polarization of light direction, any change directly does not occur for the property of light
By with optical axis at 45 degree of polarizing films 3；
C), light passes through quarter-wave plate wave plate 1 along optical axis, and first time phase postpones；Light by 10~
After the propagation of 3000m, after being reflected by the reflecting surface 11 of testee, propagates 10~3000m and enter quarter-wave plate wave
Piece 1, second of phase postpone；Light direction of vibration becomes parallel to optical axis by original direction of vibration vertical optical axis；
D), when the light that direction of vibration is parallel to optical axis is irradiated into the polarizing film 3 of 45 degree of settings again, light will not be by
Pass through, but 90 degree are reflected into infrared remote receiver 7.
Present invention benefit first positions distant objects by imaging optical path center target, and imaging optical path includes：Fig. 2 institute
Show objective lens, diaphragm, eyepiece (wherein prism, which does not mark out, comes, it primarily serves image rotation effect)；Then pass through transmitting optical path pair
Testee is aimed at and is irradiated, and transmitting optical path includes infrared transmitter, the polarizer shown in Fig. 2 (if light source is linear polarization
Light does not need the polarizer then), color separation film, polarizing film, objective lens, quarter-wave plate；Measured object is received by receiving light path again
The infrared signal of body reflection, receiving light path include infrared remote receiver, focusing objective len, polarizing film, object lens, quarter-wave shown in 2
Piece；Finally calculated at a distance from tested object according to transmitting and receiving time difference and the light velocity.
In conclusion infrared transmitter combined with the polarizer issue P/S wave, reflected by color separation film, then by polarizing film,
Objective lens, quarter-wave plate go out to be shot out；Then it gets on the reflecting surface by object, after again passing by quarter-wave plate
Become S/P wave, S/P wave passes through objective lens, polarizing film, is reflected into reception system.This patent shares an objective lens, using inclined
Principle of shaking carries out branch to imaging optical path, transmitting optical path, receiving light path, finally realizes coaxial system.The present invention is not limited to test
Telescopic system can be used in commercial measurement according to different application environment.
It should be pointed out that above embodiments are only representative examples of the invention.The present invention can also there are many deformations.It is all
Any simple modification, equivalent change and modification to the above embodiments of essence according to the present invention are considered as belonging to this
The protection scope of invention.
Claims (5)
1. a kind of coaxial range-finding telescope, including telescope main body, the telescope main body includes a shell, is set on the shell
There are eyepiece (6) and objective lens (2), it is characterised in that：It is held by eyepiece (6) towards object lens between the eyepiece (6) and objective lens (2)
Group (2) is successively additionally provided with polarizing film (3), color separation film (4) and diaphragm (5), and objective lens (2) are also set towards the side of testee
Have quarter-wave plate (1), laser ranging module is equipped in the shell, the laser ranging module includes infrared transmitter
(10) it is polarized with infrared remote receiver (9), the infrared transmitter (10) towards color separation film (4), infrared remote receiver (9) direction
Piece (3), and focus lamp (7) are additionally provided between infrared remote receiver (9) and polarizing film (3).
2. a kind of coaxial range-finding telescope according to claim 1, it is characterised in that：Infrared transmitter (10) transmitting
Light and color separation film (4) angle at 45 °, and the polarizer (8) are additionally provided between infrared transmitter (10) and color separation film (4).
3. a kind of coaxial range-finding telescope according to claim 1, it is characterised in that：The infrared remote receiver (9) receives
The light and polarizing film (3) angle at 45 ° of color, and polarizing film (3) is parallel to each other with color separation film (4).
4. a kind of coaxial range-finding telescope according to claim 1, it is characterised in that：The quarter-wave plate (1) with
Polarizing film (3) is divided the P/S wave of transmitting with received S/P wave, the color separation film (4) to visible light wave range 380nm~
780nm is divided with infrared 905nm.
5. a kind of distance measuring method of the coaxial range-finding telescope as described in any one of above-mentioned Claims 1-4 claim,
It is characterised in that it includes following steps：
A), RF transmitter (10), which emits beam, becomes linearly polarized light P/S wave by the polarizer (5), or directly by infrared
Line transmitter (10) issues linearly polarized light P/S wave；Linearly polarized light is got on 45 degree of color separation film (4), and the light direction of propagation changes
It is 90 degree, direction of vibration is still perpendicular to the light direction of propagation；
B), when light is passed through with polarization of light direction consistent polarizing film (3), it is directly logical that any change does not occur for the property of light
It crosses with optical axis into 45 degree of polarizing films (3)；
C), light passes through quarter-wave plate (1) along optical axis, and first time phase postpones；Light is by 10~3000m's
After propagation, after reflecting surface (11) reflection of testee, propagates 10~3000m and enter quarter-wave plate (1), second
Secondary phase postpones；Optical vibration direction becomes parallel to optical axis by original direction of vibration vertical optical axis；
D), when the light that direction of vibration is parallel to optical axis is irradiated into polarizing film (3) of 45 degree of settings again, light will not be led to
It crosses, but 90 degree are reflected into infrared remote receiver (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710390620.4A CN108931778A (en) | 2017-05-27 | 2017-05-27 | A kind of coaxial range-finding telescope and its distance measuring method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710390620.4A CN108931778A (en) | 2017-05-27 | 2017-05-27 | A kind of coaxial range-finding telescope and its distance measuring method |
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| CN108931778A true CN108931778A (en) | 2018-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710390620.4A Pending CN108931778A (en) | 2017-05-27 | 2017-05-27 | A kind of coaxial range-finding telescope and its distance measuring method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110244309A (en) * | 2019-06-21 | 2019-09-17 | 浙江舜宇光学有限公司 | The detection system and method for depth |
| CN110429983A (en) * | 2019-08-26 | 2019-11-08 | 常州镭斯尔通讯技术有限公司 | Telescopic system based on optic communication transmission |
| WO2023213130A1 (en) * | 2022-05-05 | 2023-11-09 | 成都赛诺特光学有限公司 | Laser range finder in which optical transmission and receiving are coaxial, and optical module |
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|---|---|---|---|---|
| JPH09113622A (en) * | 1995-10-19 | 1997-05-02 | Hitachi Ltd | Range finder capable of simultaneously finding ranges to a plurality of points |
| JP2004037162A (en) * | 2002-07-01 | 2004-02-05 | Optec:Kk | Light wave range finder |
| CN202221476U (en) * | 2011-07-25 | 2012-05-16 | 李小龙 | Laser range-measuring circuit device of telescope |
| EP2637038A1 (en) * | 2012-03-07 | 2013-09-11 | Vectronix AG | Distance sensor |
| CN204374411U (en) * | 2014-12-16 | 2015-06-03 | 中国测绘科学研究院 | Satellite laser ranging system |
| CN106092039A (en) * | 2016-07-28 | 2016-11-09 | 南阳市诚辉光电有限责任公司 | A kind of rotary shaft bitubular range-finding telescope |
| CN106154248A (en) * | 2016-09-13 | 2016-11-23 | 深圳市佶达德科技有限公司 | A kind of laser radar optical receiver assembly and laser radar range method |
| CN106291903A (en) * | 2016-10-19 | 2017-01-04 | 上海龙达胜宝利光电有限公司 | A kind of laser rangefinder telescope |
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2017
- 2017-05-27 CN CN201710390620.4A patent/CN108931778A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09113622A (en) * | 1995-10-19 | 1997-05-02 | Hitachi Ltd | Range finder capable of simultaneously finding ranges to a plurality of points |
| JP2004037162A (en) * | 2002-07-01 | 2004-02-05 | Optec:Kk | Light wave range finder |
| CN202221476U (en) * | 2011-07-25 | 2012-05-16 | 李小龙 | Laser range-measuring circuit device of telescope |
| EP2637038A1 (en) * | 2012-03-07 | 2013-09-11 | Vectronix AG | Distance sensor |
| CN204374411U (en) * | 2014-12-16 | 2015-06-03 | 中国测绘科学研究院 | Satellite laser ranging system |
| CN106092039A (en) * | 2016-07-28 | 2016-11-09 | 南阳市诚辉光电有限责任公司 | A kind of rotary shaft bitubular range-finding telescope |
| CN106154248A (en) * | 2016-09-13 | 2016-11-23 | 深圳市佶达德科技有限公司 | A kind of laser radar optical receiver assembly and laser radar range method |
| CN106291903A (en) * | 2016-10-19 | 2017-01-04 | 上海龙达胜宝利光电有限公司 | A kind of laser rangefinder telescope |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110244309A (en) * | 2019-06-21 | 2019-09-17 | 浙江舜宇光学有限公司 | The detection system and method for depth |
| CN110429983A (en) * | 2019-08-26 | 2019-11-08 | 常州镭斯尔通讯技术有限公司 | Telescopic system based on optic communication transmission |
| WO2023213130A1 (en) * | 2022-05-05 | 2023-11-09 | 成都赛诺特光学有限公司 | Laser range finder in which optical transmission and receiving are coaxial, and optical module |
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