KR20140115587A - Laser beam height aligner - Google Patents

Laser beam height aligner Download PDF

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Publication number
KR20140115587A
KR20140115587A KR1020130030282A KR20130030282A KR20140115587A KR 20140115587 A KR20140115587 A KR 20140115587A KR 1020130030282 A KR1020130030282 A KR 1020130030282A KR 20130030282 A KR20130030282 A KR 20130030282A KR 20140115587 A KR20140115587 A KR 20140115587A
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KR
South Korea
Prior art keywords
diaphragm
height
guide rail
laser light
pedestal
Prior art date
Application number
KR1020130030282A
Other languages
Korean (ko)
Inventor
조원배
송동훈
이황운
박형주
신동호
정문연
Original Assignee
한국전자통신연구원
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 한국전자통신연구원 filed Critical 한국전자통신연구원
Priority to KR1020130030282A priority Critical patent/KR20140115587A/en
Publication of KR20140115587A publication Critical patent/KR20140115587A/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
    • G01B11/0608—Height gauges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/02—Testing optical properties
    • G01M11/0207—Details of measuring devices

Abstract

The present invention discloses an apparatus for aligning laser light that aligns light accurately and in parallel at a desired height point. And a guide rail which is provided on the pedestal and is provided on one side thereof with a scale indicated along the direction perpendicular to the pedestal and a guide rail extending along the scale along the scale. A diaphragm connector configured to be vertically movable along the guide rail is provided. A diaphragm structure connected to the diaphragm connector and including an opening configured to allow light to pass therethrough.

Description

[0001] LASER BEAM HEIGHT ALIGNER [0002]

The present invention relates to a laser light height aligning apparatus, and more particularly, to an apparatus for accurately aligning a laser light to a specific height in parallel or accurately ascertaining a height of a laser light.

The laser has characteristics such as linearity, monochromaticity with the same wavelength, coherence with high brightness, and high brightness, which can go far. Due to these excellent properties, lasers are used in various fields, and many researchers are conducting various studies using lasers. In order to make a precise measurement, it is necessary to align the optical axis of the laser beam. For this purpose, it is necessary to accurately irradiate laser light to a desired spot or to confirm the height of irradiated light accurately and easily.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an apparatus which can precisely align a light height of a laser with a desired height or measure an accurate height of laser light.

According to an aspect of the present invention, there is provided a laser light height aligning apparatus including: a pedestal; And a guide rail provided on the pedestal and having a scale on a side thereof perpendicular to the pedestal and a guide rail extending in a vertical direction along the scale; A diaphragm connector configured to be vertically movable along the guide rail; And a diaphragm structure connected to the diaphragm connector and including an opening configured to allow light to pass therethrough.

According to an embodiment of the present invention, the guide rail may be provided as a pair of guide rails.

According to another embodiment of the present invention, the guide rails can penetrate the measurer body.

According to an embodiment of the present invention, the guide rail may have a slit shape.

According to another embodiment of the present invention, the diaphragm connector may be fixed to the measurer body by a fixing device.

According to an embodiment of the present invention, the fixing device can penetrate the guide rail.

According to another embodiment of the present invention, the diaphragm structure is connected to one side of the diaphragm connector, and the laser light height aligner is attached to the other side of the diaphragm connector at the same level as the central portion of the diaphragm structure And an indicator bar for displaying the scale.

According to an embodiment of the present invention, the digital distance measuring gauge may further include a digital distance measuring gauge connected to the diaphragm connector and measuring and displaying a height from a lower surface of the pedestal to a center portion of the diaphragm.

According to another embodiment of the present invention, the diaphragm structure may include a regulating device for regulating the diameter of the opening.

According to an embodiment of the present invention, the measurer body may further include a through area provided between the pair of guide rails and extending along the pair of guide rails.

According to another embodiment of the present invention, one side of the diaphragm structure may further include a scale bar attached at the same level as the central portion of the diaphragm structure.

As described above, according to the problem solving means of the present invention, the laser light can be accurately aligned to a desired height, and the height of irradiated light can be accurately measured. Therefore, it is possible to provide an apparatus for aligning light in parallel at a desired height point.

1 is a front view of an apparatus for aligning laser light according to an embodiment of the present invention.
2 is a rear view of the laser light height aligning apparatus of FIG.
3 is a plan view of the laser light height aligning apparatus of FIG.
4 is a front view of an apparatus for aligning laser light according to another embodiment of the present invention.
5 is a conceptual diagram for explaining a method of aligning a laser light height using the laser light height aligning apparatus according to the embodiments of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in different forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the concept of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. As used herein, the terms 'comprises' and / or 'comprising' mean that the stated element, step, operation and / or element does not imply the presence of one or more other elements, steps, operations and / Or additions. In addition, since they are in accordance with the preferred embodiment, the reference numerals presented in the order of description are not necessarily limited to the order.

1 is a front view of an apparatus for aligning laser light according to an embodiment of the present invention. 2 is a rear view of the laser light height aligning apparatus of FIG. 3 is a plan view of the laser light height aligning apparatus of FIG.

1 to 3, a laser light height aligning apparatus 40 according to an embodiment of the present invention includes a pedestal 10, a measurer body 30, a diaphragm connector 20, and a diaphragm structure 21 . The pedestal 10 may include holes 11 and 12 therethrough. The pedestal 10 can be made of various materials such as, for example, metal, plastic, and the like.

The measurer body 30 may be provided on the pedestal 10. The measurer body 30 may include graduations 31 and 32 on one side thereof, which can be displayed along the direction perpendicular to the pedestal 10 to measure the height. The measurer body 30 may include guide rails extending in the vertical direction along the scales 31 and 32. For example, the guide rails may be guide rails 33 and 34 provided in a pair. The pair of guide rails (33, 34) can penetrate the measurer body (30). For example, the pair of guide rails 33 and 34 may have a slit shape passing through the measurer body 30.

The diaphragm connector 20 may be connected to the measurer body 30 so as to be vertically movable along the pair of guide rails 33 and 34. For example, the diaphragm connector 20 may be connected to the measurer body 30 by fastening devices 26, 27. Each of the fixing devices 26 and 27 includes a threaded portion SP extending from the diaphragm connector 20 and passing through the pair of guide rails 33 and 34 and a nut NT . The diaphragm connector 20 may include a wheel (not shown) or the like for smooth vertical movement.

The diaphragm structure 21 may be connected to the diaphragm connector 20 and may include an opening 24 configured to allow light to pass therethrough. The diaphragm structure 21 may include a regulating device 23 for regulating the diameter of the opening 24.

The diaphragm structure 21 is connected to one side of the diaphragm connector 20 and a scale indicator bar 25 is provided on the other side of the diaphragm connector 20 at the same level as the central portion of the diaphragm structure 21 . The scale bar 25 may indicate the height of the light incident through the opening 24.

In one embodiment, the laser light height aligner 40 may further include an apparatus for increasing the accuracy of height measurement. For example, the laser light height aligning device 40 is connected to the diaphragm connector 20 to measure the height from the lower surface of the pedestal 10 to the center of the diaphragm structure 21, And a distance measurement gauge 28. As a result, the minimum unit of height measurement can be reduced from millimeters to micrometer levels.

4 is a front view of the laser light height aligning apparatus 50 according to another embodiment of the present invention. Descriptions of redundant configurations may be omitted for the sake of simplicity.

Referring to FIG. 4, the measurer body 30 may include a penetration area 35 passing through the measurer body 30 between a pair of guide rails 33, 34. The penetration area 35 may extend along the pair of guide rails 33, 34. The diaphragm structure 21 may be connected to the upper portion of the diaphragm connector 20. A scale indicator bar 25 may be attached to the periphery of the diaphragm structure 21 at the same level as the central portion of the diaphragm structure 21. The scale bar 25 may indicate the height of the light incident through the opening 24. The light incident on the opening 24 may pass through the through region 35. The diaphragm connector 20 may be connected to the measurer body 30 by fastening devices 26, 27.

5 is a conceptual diagram for explaining a method of aligning laser light heights using the laser light height aligning apparatus according to the embodiments of the present invention. 4 and 5, the first laser light height aligning device A1 and the second laser light height aligning device A1, which are spaced apart from the center of the laser irradiator 70 by a first distance d1 and a second distance d2, respectively, The alignment apparatus A2 can be disposed on the optical table 60. Fig. That is, the first and second laser light height aligners A1 and A2 may be arranged with different distances on the same optical path. In one embodiment, the first and second laser light height aligners A1 and A2 may be the laser light height aligner 50 of FIG. The optical table 60 may include a plurality of holes penetrating the optical table 60. The first and second laser light height aligning devices A1 and A2 may be disposed in the holes 10a of the pedestal 10, Can be fixed to the optical table (60) by a fastening device passing through the holes of the table (60). In one example, the fastening device may include bolts and nuts.

When it is desired to irradiate the laser light with a desired height in parallel to the plane of the optical table 60, the first laser light height aligning device A1 and the second laser light height aligning device A2 ' 21 can be fixed to the fixing device at desired heights h2, h3. In this case, the heights h2 and h3 of the diaphragm structures 21 remain the same. At this time, the desired heights h2 and h3 can be easily read through the scale bar 25 indicating the scales 31 and 32 of the measurer body 30. In one embodiment, the desired heights h2 and h3 may be more precisely identified through the digital distance gauge 28. The height of the laser irradiator 70 is adjusted so that the laser beam irradiated from the laser irradiator 70 passes through the center of the iris structures 21 fixed to the desired heights h2 and h3 h1) can be adjusted. Thus, by adjusting the heights h1, h2 and h3 to be equal to each other, the laser light height can be aligned at a desired height, and the optical axis 75 of the laser irradiator 70 can be aligned. In one embodiment, when the diameter of the light is large, the center point of the accurate light can be measured by adjusting the diameter of the opening 24 through which the light of the diaphragm structure 21 passes.

In another embodiment, when it is desired to irradiate laser light with a plane of the optical table 60 at a certain angle (?), The first laser light height aligning device A1 and the second laser light height aligning device A2 are calculated using the angle (?) Between the laser light and the optical table (60), the distances (d1 and d2) and the height (h1) can be fixed to the fixing device at the respective heights h2 and h3, which are obtained by the following equations (2) and (3): [theta] = (h2-h1) / d1 = (h3-h1) / d2 = (h3- . The laser beam emitted from the laser irradiator 70 passes through the center of the iris structures 21 fixed to the calculated heights h2 and h3, The angle of the light guide plate 75 can be adjusted to the predetermined angle?. As a result, the laser light can be aligned so that it can be irradiated at a certain angle (?) With the plane of the optical table (60).

In order to measure the height of the irradiated laser light, the height of the laser light is controlled by the scale display bar 25 of the iris structure 21 coinciding with the center of the light on the optical path or the digital distance measurement gauge 28 displayed at this time Can be measured.

In another embodiment, the laser light height aligning devices A1, A2 of FIG. 5 may be the laser light height aligning device 40 of FIGS. 1-3.

In order to confirm the height of the laser beam, it is difficult to discriminate the exact height when the laser beam is strong due to the diffused laser light in the scale. Also, if the diameter of the light is large, it is difficult to know the exact center. However, according to the embodiments of the present invention, the laser light can be accurately aligned to a desired height, and the height of the irradiated light can be easily and accurately measured.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood. It is therefore to be understood that the above-described embodiments are illustrative and non-restrictive in every respect.

10: pedestal 20: diaphragm connector
21: diaphragm structure 25: graduation bar
28: Digital distance measuring gauge 30: Measuring body

Claims (11)

Pedestal;
And a guide rail provided on the pedestal and having a scale on a side thereof perpendicular to the pedestal and a guide rail extending in a vertical direction along the scale;
A diaphragm connector configured to be vertically movable along the guide rail; And
And a diaphragm structure connected to the diaphragm connector and including an opening configured to allow light to pass therethrough. The method according to claim 1,
Wherein the guide rails are provided as a pair of guide rails. The method according to claim 1,
And the guide rail passes through the measurer body. The method of claim 3,
Wherein the guide rail has a slit shape. The method according to claim 1,
And the diaphragm connector is fixed to the measurer body by a fixing device. 6. The method of claim 5,
Wherein the fixing device passes through the guide rail. The method according to claim 1,
The diaphragm structure is connected to one side of the diaphragm connector,
Wherein the laser light height aligning device further comprises a scale bar attached to the other side of the diaphragm connector at the same level as the central portion of the diaphragm structure. The method according to claim 1,
And a digital distance measuring gauge connected to the diaphragm connector and measuring and displaying a height from a lower surface of the pedestal to a center portion of the diaphragm structure. The method according to claim 1,
Wherein the diaphragm structure comprises a regulating device for regulating the diameter of the opening. 3. The method of claim 2,
Wherein the measurer body further comprises a penetration area provided between the pair of guide rails and extending along the pair of guide rails. 11. The method of claim 10,
Further comprising a scale bar attached to one side of the diaphragm structure at the same level as the central portion of the diaphragm structure.
KR1020130030282A 2013-03-21 2013-03-21 Laser beam height aligner KR20140115587A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020130030282A KR20140115587A (en) 2013-03-21 2013-03-21 Laser beam height aligner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020130030282A KR20140115587A (en) 2013-03-21 2013-03-21 Laser beam height aligner

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KR20140115587A true KR20140115587A (en) 2014-10-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109238654A (en) * 2018-08-20 2019-01-18 河南省高远公路养护技术有限公司 A kind of raising laser depth of parallelism calibrating installation and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109238654A (en) * 2018-08-20 2019-01-18 河南省高远公路养护技术有限公司 A kind of raising laser depth of parallelism calibrating installation and method
CN109238654B (en) * 2018-08-20 2020-04-10 河南省高远公路养护技术有限公司 Calibration device and method for improving laser parallelism

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