KR20170034472A - Distance measuring apparatus using Laser - Google Patents

Distance measuring apparatus using Laser Download PDF

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Publication number
KR20170034472A
KR20170034472A KR1020150132752A KR20150132752A KR20170034472A KR 20170034472 A KR20170034472 A KR 20170034472A KR 1020150132752 A KR1020150132752 A KR 1020150132752A KR 20150132752 A KR20150132752 A KR 20150132752A KR 20170034472 A KR20170034472 A KR 20170034472A
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South Korea
Prior art keywords
laser
specific object
unit
module
range finder
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KR1020150132752A
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Korean (ko)
Inventor
신웅철
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신웅철
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Publication of KR20170034472A publication Critical patent/KR20170034472A/en

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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
    • 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
    • G01S7/491—Details of non-pulse systems
    • G01S7/4911—Transmitters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/0007—Applications not otherwise provided for

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Optics & Photonics (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Measurement Of Optical Distance (AREA)

Abstract

The present invention relates to a laser distance measuring apparatus, and more particularly, to a laser distance measuring apparatus which includes a first laser emitting unit and a second laser emitting unit which emit lasers in different directions, effectively measures a distance between a first specific object and a second specific object by controlling the angles of a first module and a second module which include the first laser emitting unit and the second laser emitting unit, respectively, and also efficiently measures the length of the specific object.

Description

[0001] The present invention relates to a distance measuring apparatus using laser,

The present invention relates to a laser range finder, and more particularly, The first and second modules each including a first laser emitting portion and a second laser emitting portion are constituted by a first laser emitting portion and a second laser emitting portion that emit laser in mutually different directions, 1 It is possible to effectively measure the distance between a specific object and a second specific object and also to efficiently measure the length of a specific object To a laser range finder.

Generally, tape measure is widely used to measure distances in industry and everyday life such as industrial field, construction site, interior decoration.

Such a tape measure requires two persons because it is difficult to measure a large volume object or place, a high-sized object or a place alone, and because of the nature of the tape measure material, warpage occurs during measurement, It is necessary to connect them in a linear manner.

Therefore, a laser range finder (LRF), which measures the distance to the target after calculating the distance to the target by counting the time until the laser beam is reflected on the target using the laser beam, is developed .

The laser distance measuring apparatus includes a laser transmitting unit for emitting laser light and a laser receiving unit for receiving the laser light reflected on the target. When the user fires the laser light on the target to measure the distance, It is a device that calculates the distance from this time after measuring the time reflected back to the target.

Since the laser range finder emits a laser beam and receives the laser beam reflected from the target to measure the distance, the laser beam must be received correctly.

However, these laser range finders could only be used to measure horizontal or vertical distance.

In addition, there is a disadvantage that a target must be present on a horizontal or vertical extension line, and a considerable inconvenience or impossibility in measuring a certain distance from the measurement surface.

Korean Patent Publication No. 2014-0045631

It is an object of the present invention to provide a laser irradiation apparatus in which when a distance between a first specific object and a second specific object is measured, a first laser emitting portion and a second laser emitting portion are laser- And to provide a laser distance measuring device capable of accurately measuring a distance even if it is measured at any position as long as a laser can be transmitted to an object.

It is also an object of the present invention to provide a laser range finder capable of measuring the length of a specific object without using a reflector by using an adjustable laser range finder.

According to an aspect of the present invention, there is provided a laser range finder comprising: a first laser emitting portion and a second laser emitting portion for emitting a laser; A first laser receiving unit and a second laser receiving unit for respectively receiving the laser beams emitted from the first laser emitting unit and the second laser emitting unit and reflected by a specific object; And an arithmetic unit for calculating a distance between the first laser emitting unit and the second laser emitting unit and the specific object, respectively, based on a time at which the laser was emitted and a time at which the laser was emitted, And the second laser transmitting unit can transmit the laser beams in different directions.

The first laser emitting portion and the second laser emitting portion may transmit the laser in the opposite direction.

The laser range finder includes: a first module including the first laser emitting unit and the first laser receiving unit; And a second module including the second laser emitting unit and the second laser receiving unit.

The first module and the second module may be configured to be detachable.

The first module and the second module may be configured to be adjustable in angle.

And an angle measurement unit for measuring an angle between the first module and the second module.

The calculation unit may calculate a sum of distances between the first laser emitting unit and the second laser emitting unit and the specific object.

The calculating unit may calculate distances reflected from the first laser emitting unit and the second laser emitting unit to the specific object, respectively, and an angle measured by the angle measuring unit.

And a display unit for displaying at least one of a distance between the first laser emitting unit and the second laser emitting unit calculated from the calculating unit and the specific object and a length of the specific object.

And one or more operation buttons for instructing the laser to be emitted.

And a time measuring unit for measuring a time at which the laser is transmitted and a time at which the laser is transmitted.

The first module and the second module may be hinged together.

According to the laser range finder of the present invention, when the distance between the first specific object and the second specific object is measured, the first laser emitting portion and the second laser emitting portion transmit the laser in the opposite direction, It is possible to accurately measure the distance even if it is measured at any position as long as the laser can be delivered to the second specific object.

Further, according to the present invention, By using an angle adjustable laser range finder, the length of a specific object can be measured without a reflector.

Further, according to the present invention, By using an angle-adjustable laser range finder, you can measure distances or angles even at difficult edges, slots or corners.

Furthermore, the width can be measured by measuring the width, length and height of the rectangle.

1 is a block diagram of a laser distance measuring apparatus according to an embodiment of the present invention.
2 is a schematic diagram of a method for measuring a distance using a laser range finder according to an embodiment of the present invention.
3 is a schematic diagram of a method of measuring a distance using a laser range finder according to another embodiment of the present invention.
4 is a schematic diagram of a calculation method for measuring a distance using a laser range finder in accordance with another embodiment of the present invention.

The present invention will now be described in detail with reference to the accompanying drawings. Hereinafter, a detailed description of known functions and configurations that may unnecessarily obscure the gist of the present invention will be omitted. Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art. Accordingly, the shapes and sizes of the elements in the drawings and the like can be exaggerated for clarity.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

Hereinafter, preferred embodiments of the present invention will be described in order to facilitate understanding of the present invention. However, the following examples are provided only for the purpose of easier understanding of the present invention, and the present invention is not limited by the examples.

2 is a schematic view illustrating a method of measuring a distance using a laser distance measuring apparatus according to an embodiment of the present invention. FIG. 3 is a schematic view of a laser distance measuring apparatus according to an embodiment of the present invention. FIG. 4 is a flowchart illustrating a method of measuring a distance using a laser distance measuring apparatus according to another embodiment of the present invention. FIG. 4 is a flowchart illustrating a method of measuring a distance using a laser distance measuring apparatus according to another embodiment of the present invention. Fig.

1, a laser distance measuring apparatus 100 according to the present invention includes a first laser emitting unit 10A, a second laser emitting unit 10B, a first laser receiving unit 20A, a second laser receiving unit The second module B, the time measuring unit 30, the angle measuring unit 40, the calculating unit 50, and the display unit 60. The first module A, the second module B,

The first laser emitting portion 10A and the second laser emitting portion 10B serve to transmit the laser.

The first laser emitting portion 10A and the second laser emitting portion 10B can transmit the laser in different directions. For example, the first laser emitting portion 10A and the second laser emitting portion 10B can transmit the laser in the opposite direction.

1 and 2, a first specific object W 1 is positioned on one side and a second specific object W 2 is positioned on the other side of the first specific object W 1 ) and the second specific object W 2 , the user is positioned at a distance where the laser can be transmitted to the first specific object W 1 and the second specific object W 2 The distance is measured. At this time, the laser is emitted toward the first specific object W 1 by the first laser emitting portion 10A and the laser is emitted toward the second specific object W 2 by the second laser emitting portion 10B.

Here, the user the distance between the first specific object (W 1) or a second specific object (W 2) of claim be relatively shifted to the position 1, a specific object (W 1) and a second specific object (W 2) to It becomes possible to measure.

Further, it is noted that the position of the user is not limited as long as the user can transmit the laser to the first specific object W 1 and the second specific object W 2 .

The reason for this is that, in the case of the conventional laser range finder, the user wants to measure the distance between the first specific object (W 1) and a second specific object (W 2), a first specific object (W 1) operating the laser rangefinder and the second to measure the distance between the specific object (W 2) a first specific object (W 1) and a second specific object (W 2) by transmitting a laser towards. In other words, the user must be located at the starting point of the measuring distance.

However, one exemplary example of a laser distance invention meter 100 includes a first laser transmitter (10A) and a second laser transmitter (10B) that it transmits the laser with each other in different directions the user and a first specific object (W 1 And the second specific object W 2 , the position of the user is not limited.

That is, the distance can be precisely measured even if the user measures the laser beam at any position as far as the laser can be transmitted to the first specific object W 1 and the second specific object W 2 .

A method of measuring the distance between the first specific object W 1 and the second specific object W 2 using the laser distance measuring instrument 100 will be described later in more detail.

At this time, the laser range finder 100 may include one or more operation buttons 11 for instructing the laser to be transmitted.

The shape of the operation button 11 is not particularly limited, but is preferably a shape that the user can press easily.

According to an embodiment of the present invention, when the user presses the operation button 11, the first laser emitting unit 10A and the second laser emitting unit 10B emit laser respectively.

The first laser receiving unit 20A and the second laser receiving unit 20B serve to receive a laser beam reflected from a specific object and transmitted from the first laser emitting unit 10A and the second laser emitting unit 10B, respectively .

In an embodiment of the present invention, when the first specific object W 1 is positioned on one side and the second specific object W 2 is positioned on the other side and one or more operation buttons 11 of the laser distance meter 100 are pressed, a first laser transmitter (10A) of the first laser and the transmitted towards a specific object (W 1), a first specific object (W 1) of the laser for the first laser receiving section (20A) is reflected on the received. Equal to the second laser transmitter these (10B) of the second and the laser is transmitted towards a specific object (W 2), the second to receive the specific object (W 2) of the laser for the second laser receiving section (20B) reflecting the do.

The laser distance measuring apparatus 100 includes a first module A and a second laser emitting unit 10B including a first laser emitting unit 10A and a first laser receiving unit 20A and a second laser receiving unit 20B, The first laser emitting portion 10A, the second laser emitting portion 10B, the first laser emitting portion 10A, the second laser emitting portion 10B, It is noted that the receiving unit 20A and the second laser receiving unit 20B may be a laser range finder 100 composed of one module.

1, the first module A includes a first laser emitting unit 10A and a first laser receiving unit 20A, a second module B includes a second laser emitting unit 10B, The first module A and the second module B can be configured to be detachable in the case of the laser range finder 100 including the first laser module 20A and the second laser module 20B, (B) may be configured to be adjustable in angle.

Note that the first module A and the second module B can be hinged together.

The laser range finder 100 having such a configuration can measure the distance between the first specific object W 1 and the second specific object W 2 as well as measure the distance between the third specific object W 3 itself The length can be measured.

Than In more detail, referring to Figure 3 another embodiment example of the invention, the user 3 located Looking to the specific object (W 3), by using a laser rangefinder 100 is angle-adjustable third specific object (W 3) to the first laser of the first module (a) toward the side of the bride (10A) is sent to the laser, and the third specific object (W 3) toward the other side of the second module (B) a second laser to the The brim section 10B sends out the laser. A first laser transmitter (10A) and the second laser to be respectively delivered from the bride (10B) a third specific object (W 3) of the laser for the first laser receiving section (20A) and the second laser receiving reflected to one side and the other side of the (20B).

A method for measuring the length of the third specific object W 3 using the laser distance measuring instrument 100 having such a configuration will be described later in more detail.

The time measuring unit 30 measures the time at which the laser is transmitted and the time at which the laser is transmitted.

The time measuring unit 30 calculates the time between the first specific object W 1 and the second specific object W 2 based on the time when the laser is transmitted and the time that was received after the measurement, And the length of the third specific object W 3 can be measured.

The angle measurement unit 40 measures the angle between the first module A and the second module B.

The angle between the first module A and the second module B is measured by the angle measuring unit 40 and the distance between the first laser emitting unit 10A and the third specific object W 3 It is possible to easily measure the length of the third specific object W 3 by measuring the distance between the second laser emitting portion 10B and the third specific object W 3 .

The arithmetic unit 50 calculates the distance between the first laser emitting unit 10A and the second laser emitting unit 10B and a specific object based on the time at which the laser is emitted and the time at which the laser was measured by the time measuring unit 30 Respectively.

In an embodiment of the present invention, when the first specific object W 1 is positioned on one side and the second specific object W 2 is positioned on the other side and one or more operation buttons 11 of the laser distance meter 100 are pressed, a first laser transmitter (10A) of the first laser is transmitted towards a specific object (W 1), a first specific object (W 1) of the laser for the first laser receiving section (20A) is reflected on the received. Equal to the second laser transmitter these (10B) of the second is the laser is transmitted towards a specific object (W 2), the second to receive the specific object (W 2) of the laser for the second laser receiving section (20B) reflecting the do. In this case, the time measuring unit 30 measures the time at which the laser is transmitted and the time at which the laser is transmitted. Here, the calculating unit 50 calculates the time at which the laser is emitted from the first laser emitting unit 10A and the second laser emitting unit 10B The distance between the first laser emitting portion 10A and the first specific object W 1 and the distance between the first laser emitting portion 10A and the first specific object W 1 are determined based on the time of the first laser emitting portion 20A and the time of receiving the laser of the first laser receiving portion 20A and the second laser receiving portion 20B, second laser transmitter (10B) and the second is respectively calculating the distance of the particular object (W 2).

The calculating unit 50 calculates the sum of the distance between the first laser emitting unit 10A and the first specific object W 1 and the distance between the second laser emitting unit 10B and the second specified object W 2 The distance between the first specific object W 1 and the second specific object W 2 can be calculated.

More specifically, the distance between the first laser emitting portion 10A and the first specific object W 1 is a 1 , the distance between the second laser emitting portion 10B and the second specific object W 2 is a 2 , The length of the laser distance measuring instrument 100 is a 3 and the distance between the first specific object W 1 and the second specific object W 2 is a 4 , 1 The distance between the specific object W 1 and the second specific object W 2 is measured.

&Quot; (1) "

Figure pat00001

Further, the operating section 50 is the angle between the measurement by the first laser transmitter (10A) and a second laser transmitter (10B), each third specific object (W 3), the distance and angle measuring unit 40 is reflected in from the .

Other embodiments for example the user of the present invention is the third specific object (W 3) for looking located, the third specific object (W 3), the first module (A toward the side of using a laser range finder 100 is the angle adjustable ) of and transmits the laser of the first laser transmitter (10A), the third is a second laser transmitter (10B) of the second module (B) toward the other side of the specific object (W 3) that transmits a laser. A first laser transmitter (10A) and the second laser to be respectively delivered from the bride (10B) a third specific object (W 3) of the laser for the first laser receiving section (20A) and the second laser receiving reflected to one side and the other side of the (20B). At this time, the calculating unit 50 calculates the time of the first laser emitting unit 10A and the second laser emitting unit 10B measured by the time measuring unit 30, the first laser receiving unit 20A, The length of the third specific object W 3 is measured using the angles of the first module A and the second module B measured by the received time and angle measuring unit 40 of the receiving unit 20B .

A method for measuring the length of the third specific object W 3 will be described in more detail with reference to FIGS. 3 and 4. The distance between the first module A and the third specific object W 3 is d 1 and the distance between the second module B and the third specific object W 3 is d 2 and the angle between the first module A and the second module B is θ, The length d 3 of the third specific object W 3 can be obtained by a formula similar to Equation ( 2 ) of FIG.

&Quot; (2) "

Figure pat00002

The display unit 60 serves to display at least one of the distance between the first laser emitting unit 10A and the second laser emitting unit 10B calculated from the calculating unit 50 and a specific object and the length of a specific object do.

The display unit 60 displays a visual output to the user so that the user can see text, images, graphics, and the like through the display unit 60.

The display unit 60 allows the user to easily confirm the distance between the first specific object W 1 and the second specific object W 2 and the length of the third specific object W 3 .

As described above, the laser range finder 100 according to the embodiment of the present invention has the first specific object W 1 on one side and the second specific object W 2 on the other side, pressing the at least one operation button 11 of 100), the first laser transmitter (10A) is a laser reflection to a first the laser is transmitted towards a specific object (W 1), the first specific object (W 1) And the first laser receiving unit 20A receives it. Equal to the second laser transmitter these (10B) of the second is the laser is transmitted towards a specific object (W 2), the second to receive the specific object (W 2) of the laser for the second laser receiving section (20B) reflecting the do. At this time, based on the time when the laser beams of the first laser emitting portion 10A and the second laser emitting portion 10B are transmitted and the time of receiving the laser of the first laser receiving portion 20A and the second laser receiving portion 20B The distance between the first laser emitting portion 10A and the first specific object W 1 and the distance between the second laser emitting portion 10B and the second specified object W 2 are respectively calculated and the sum of these is calculated So that the distance between the first specific object W 1 and the second specific object W 2 can be measured. With this laser range finder 100, the user first specific object (W 1) or a second specific object be relatively shifted to the position in (W 2) a first specific object (W 1) and a second specific object (W 2) a user of the location that can be sent to the laser regardless, also measured at any position first to easily measure the distance between the specific object (W 1) and a second specific object (W 2) to .

According to an embodiment of the present invention, the laser range finder 100 can measure the width of a rectangle. By measuring the width " I " of the rectangle in the same manner as described above, .

As described above, according to another embodiment of the present invention, the laser distance measuring apparatus 100 according to the embodiment of the present invention allows the user to view the third specific object W 3 , toward the side of the specific object (W 3) of the first module (a) a first laser transmitter (10A) that transmits a laser, and a third specific object (W 3) a second module (B) toward the other side of the And the second laser emitting portion 10B transmits the laser. A first laser transmitter (10A) and the second laser to be respectively delivered from the bride (10B) a third specific object (W 3) of the laser for the first laser receiving section (20A) and the second laser receiving reflected to one side and the other side of the (20B). At this time, the transmission time of the first laser emitting unit 10A and the second laser emitting unit 10B, the time of the first laser receiving unit 20A and the receiving time of the second laser receiving unit 20B, It is possible to measure the length of the third specific object W 3 by using the angle of the second module B and the angle of the second module B. By using the angle-adjustable laser range finder 100 having such a configuration, the length of the third specific object W 3 can be measured easily without a reflector.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It will be understood that the present invention can be changed.

100: Laser range finder
10A: a first laser emitting portion
10B: the second laser emitting portion
11: Action button
20A: a first laser receiver
20B: second laser receiver
30: Time measuring unit
40:
50:
60:
A: First module
B: Second module
W 1 : the first specific object
W 2 : the second specific object
W 3 : the third specific object

Claims (12)

A first laser emitting portion and a second laser emitting portion for emitting a laser;
A first laser receiving unit and a second laser receiving unit for respectively receiving the laser beams emitted from the first laser emitting unit and the second laser emitting unit and reflected by a specific object; And
And an arithmetic unit for calculating distances between the first laser emitting unit and the second laser emitting unit and the specific object, respectively, based on the time at which the laser is emitted and the received time,
Characterized in that the first laser emitting portion and the second laser emitting portion emit a laser in different directions from each other,
Laser range finder.
The method according to claim 1,
Characterized in that the first laser emitting portion and the second laser emitting portion emit a laser in the opposite direction,
Laser range finder.
The method according to claim 1,
The laser range finder comprises:
A first module including the first laser emitting unit and the first laser receiving unit; And
And a second module including the second laser emitting unit and the second laser receiving unit.
Laser range finder.
The method of claim 3,
Wherein the first module and the second module are configured to be removable.
Laser range finder.
The method of claim 3,
Wherein the first module and the second module are configured to be adjustable in angle,
Laser range finder.
The method of claim 3,
And an angle measuring unit for measuring an angle between the first module and the second module.
Laser range finder.
The method according to claim 1,
Wherein the calculation unit calculates a sum of distances between the first laser emitting unit and the second laser emitting unit and the specific object,
Laser range finder.
The method according to claim 6,
Wherein the arithmetic unit calculates the distance reflected from the specific object from each of the first laser emitting unit and the second laser emitting unit and the angle measured in the angle measuring unit,
Laser range finder.
9. The method of claim 8,
And a display unit for displaying at least one of a distance between the first laser emitting unit and the second laser emitting unit calculated from the calculating unit and the specific object and a length of the specific object.
Laser range finder.
The method according to claim 1,
And one or more operation buttons for instructing to send out the laser.
Laser range finder.
The method according to claim 1,
And a time measuring unit for measuring a time at which the laser is transmitted and a time at which the laser is transmitted.
Laser range finder.
The method of claim 3,
Wherein the first module and the second module are hinged together.
Laser range finder.
KR1020150132752A 2015-09-21 2015-09-21 Distance measuring apparatus using Laser KR20170034472A (en)

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
WO2019103582A1 (en) * 2017-11-27 2019-05-31 이시경 Multipurpose laser measurement device and measurement method of multipurpose laser measurement device
KR20210023604A (en) * 2019-08-23 2021-03-04 김진형 Laser distance measuremet and laser distance measuring method
WO2021145535A1 (en) * 2020-01-16 2021-07-22 비엔엘바이오테크 주식회사 Digital measurement device and measurement method
WO2023277363A1 (en) * 2021-06-30 2023-01-05 주식회사 맥파이테크 Laser range finding apparatus, finding device, storage medium for storing instruction for finding, and laser range finding system

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Publication number Priority date Publication date Assignee Title
KR20140045631A (en) 2012-10-09 2014-04-17 주식회사 히타치엘지 데이터 스토리지 코리아 Laser range finder

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140045631A (en) 2012-10-09 2014-04-17 주식회사 히타치엘지 데이터 스토리지 코리아 Laser range finder

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019103582A1 (en) * 2017-11-27 2019-05-31 이시경 Multipurpose laser measurement device and measurement method of multipurpose laser measurement device
KR20210023604A (en) * 2019-08-23 2021-03-04 김진형 Laser distance measuremet and laser distance measuring method
WO2021145535A1 (en) * 2020-01-16 2021-07-22 비엔엘바이오테크 주식회사 Digital measurement device and measurement method
KR20210092419A (en) * 2020-01-16 2021-07-26 비엔엘바이오테크 주식회사 Digital measuring apparatus and measuring method
CN113423361A (en) * 2020-01-16 2021-09-21 白李生物科技有限公司 Digital measuring device and measuring method
JP2022532809A (en) * 2020-01-16 2022-07-20 ビーアンドエル バイオテック インコーポレイティッド Digital measuring device and measuring method
AU2020277081B2 (en) * 2020-01-16 2022-08-18 B&L Biotech, Inc. Digital measurement apparatus and digital measurement method
CN113423361B (en) * 2020-01-16 2022-09-16 白李生物科技有限公司 Digital measuring device and measuring method
US11635292B2 (en) 2020-01-16 2023-04-25 B&L Biotech, Inc. Digital measurement apparatus and digital measurement method
EP4091574A4 (en) * 2020-01-16 2024-01-24 B&L Biotech, Inc. Digital measurement device and measurement method
WO2023277363A1 (en) * 2021-06-30 2023-01-05 주식회사 맥파이테크 Laser range finding apparatus, finding device, storage medium for storing instruction for finding, and laser range finding system

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