CN108981653A - Laser level and its laser shift unit - Google Patents
Laser level and its laser shift unit Download PDFInfo
- Publication number
- CN108981653A CN108981653A CN201710405069.6A CN201710405069A CN108981653A CN 108981653 A CN108981653 A CN 108981653A CN 201710405069 A CN201710405069 A CN 201710405069A CN 108981653 A CN108981653 A CN 108981653A
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- Prior art keywords
- laser
- plane
- level
- optical element
- shift unit
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- 230000003287 optical effect Effects 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 239000011521 glass Substances 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000019771 cognition Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
One kind being used for the laser shift unit (50) of laser level (10), it includes optical element and the mounting device (60) for being adapted for attachment to laser level (10), when the laser shift unit (50) is mounted to the laser level (10), it is diverted in second laser plane (P2) from the laser beam being located in first laser plane (P1) that the laser beam emitting device (30) of laser level (10) is launched by the optical element, second laser plane (P2) is deviated from the first laser plane (P1).The invention further relates to the purposes of laser level (10) and laser level (10) with laser shift unit (50).
Description
Technical field
The present invention relates to a kind of laser shift units for laser level, and swashing including this laser shift unit
Light level.
Background technique
Typically, laser level is used in fields of measurement or building field, for measuring, being aligned or adjusting target object
Relative altitude.A common application is indoors in finishing field, such as in wall plastering operation.
Traditional laser level includes shell, is placed in the intracorporal pendulum body of shell, and is set to swashing on pendulum body
Light emitting devices.In wall plastering operation, laser level, which is placed with, makes laser beam emitting device towards to plastered wall face
Emit laser, this metope is also referred to as target and checks surface or working surface.Laser level further includes protection Laser emission
The protective cover of the laser generating element of device.Due to the presence of this protective cover, the laser beam of laser generating element transmitting be located at away from
In laser plane at one distance of metope.
It is not intended, however, that there is this distance between laser plane and metope.In most cases, due to the presence of this distance,
Plasterer needs to dig or draw a pit on metope, and laser level is placed in hole, is more leaned on so that laser plane is displaced to
Nearly metope.This than it is relatively time-consuming and wall plastering operation complete after need to carry out the additional work for filling up pit.In addition,
It is also possible to cause the flatness of metope and smoothness undesirable, the cement layer thickness of smearing is larger, and therefore causes higher
Cost.
Accordingly, it is desirable to be able to solve the above problems, laser plane is enable to be arranged as close to unadorned metope,
And the distance is answered as small as possible.
Summary of the invention
The purpose of the present invention is outside the boundary that the laser beam issued inside laser level is displaced to laser level
Face makes laser check surface or working surface closer to target or be overlapped with it.
For this purpose, according to the first aspect of the invention, a kind of laser shift unit for laser level is provided, it can
Including optical element and the protective device for being adapted for attachment to laser level, described swash when the laser shift unit is mounted to
It is described from the laser beam being located in first laser plane that the laser beam emitting device of laser level is launched when light level
Optical element is diverted in second laser plane, and second laser plane is from the first laser planar offset.This steering can pass through
Refraction and/or reflection are realized.The preferably described second laser plane (P2) can be parallel to first laser plane.The optical element
Can be is circular shape or trapezoidal shape.The optical element may include one, two, three or four identical
Trapezoid element.
According to the second aspect of the invention, a kind of laser level with above-mentioned laser shift unit is provided, it is described
Laser level may include shell, the pendulum body being placed in shell, and the laser beam emitting device being set on pendulum body, institute
Stating laser beam emitting device includes laser generating element, and the laser generating element is for emitting the laser in first laser plane
Beam, wherein be diverted to from the laser beam being located in first laser plane that laser generating element is launched by the optical element
In second laser plane, second laser plane is offset up from the first laser plane in the side far from shell.It is described to swash
Light shift unit can removably or permanently be attached to laser level by means of its mounting device.The second laser is flat
Face and working surface can be same surface.The first laser plane and second laser plane can be vertical plane or level
Face.
According to the third aspect of the invention we, the purposes of above-mentioned laser level is provided, can be used for wall plastering application
In, or on the floor or roof in room.
By providing laser shift unit for laser level, from laser level internal emission go out laser beam and its
The laser plane at place by mobile with further towards the surface towards targeted work surface, such as metope, or even with this
Surface is overlapped.This is particularly advantageous when using in wall plastering application, eliminates before carrying out plastering operation on metope
Time and work needed for digging pit and filling up dug hole after plastering operation.
Detailed description of the invention
It can be obtained in the detailed description that aforementioned and other aspects of the invention are provided in conjunction with attached drawing below more complete
Understanding and cognition, in figure:
Fig. 1 is the side view of a part of the laser level of principle construction according to the present invention；
Fig. 2 is the enlarged drawing of a part of laser level shown in fig. 1, illustrates the principle of the present invention；
The difference that Fig. 3 a to 3d shows the laser shift unit of the laser level of principle construction according to the present invention is shown
Example property structure；With
Fig. 4 illustrates that the laser beam launched from the laser level of Fig. 1 is moved by the laser shift unit of laser level
Spread scope before and after position.
Specific embodiment
Laser level according to the present invention solves above-mentioned technical problem by providing laser shift unit.From principle
From, laser shift unit is made of translucent material, specially refractive material, and being configured to will be out of laser level
Laser beam displacement generate, in first laser plane moves to second laser plane, and second laser plane is opposite
Surface/working surface offset is checked towards target in first laser plane.
Below with reference to the accompanying drawings the laser leveling with laser shift unit of principle construction according to the present invention is described in detail
Instrument.In figure, Fig. 1 is the side view of the laser level 10 with laser shift unit 50 of principle construction according to the present invention.
According to the present invention, laser level 10 can be any kind of laser level, be typically used in measurement neck
In domain, interior decoration field, building field or any other field.In particular, laser level is the common work of house decoration
Tool, such as wall plastering.In the following description, laser level 10 will be introduced so that wall plastering is applied as an example.
Laser level 10 is mainly including shell 20, the pendulum body (not shown) being placed in shell 20, and is set to
Laser beam emitting device 30 on pendulum body.Pendulum body is by means of support device can pivotably be propped up relative to shell 20
Support in shell 20, laser beam emitting device 30 be fixed to pendulum body so as to pendulum body relative to 20 pivot of shell
Turn.Preferably, pendulum body and the laser beam emitting device 30 being arranged on can be around orthogonal two pivot axis pivots
Turn.
Laser beam emitting device 30 mainly includes laser generating element 34.Laser generating element 34 can be known in the art
Any appropriate type laser generating element, including but not limited to dot laser source and linear laser source etc..For example, laser generates
Element 34 may be configured to axicon lens.
The laser generating element 34 of laser beam emitting device 30 is usually set from the projection from inside to outside of shell 20, laser beam emitting device 30
There is the protective cover 40 for protecting laser generating element 34.At least some parts of protective cover 40 are made of translucent material, to permit
Perhaps laser can pierce through the protection cover 40 and away from target check surface or working surface, one distance of metope for example to be applied the
It is propagated in one laser plane P1.
According to the present invention, laser level 10 is provided with laser shift unit 50.Laser shift unit 50 can be removable
It is attached to laser level 10 with unloading, so that it can be disassembled from laser level 10, is re-attached to as needed
Same or another laser level.Preferably, laser shift unit 50 is designed to Modular units and is provided separately.It is optional
Ground, laser shift unit 50 can be permanently attached laser level 10 to become a part of laser level 10.
Laser shift unit 50 is including laser shift component and for keeping laser shift component and being adapted for attachment to
The mounting device 60 of laser level 10.Specifically, herein, which is optical element, is specially light transmission
Element 52.The mounting device 60 can have any mechanical structure appropriate, and laser shift unit 50 is fixed to laser leveling
Instrument 10, for example, being fixed to either or both of shell 20 and protective cover 40 of laser level 10.The detailed knot of mounting device
Structure is not emphasis of the invention, here without detailed description.As an example, the mounting device 60 in Fig. 1 is designed to frame
Form.
According to the present invention, laser shift unit 50 mainly includes the translucent element 52 for turning to the laser beam entered,
Translucent element 52 includes that laser light incident surface 52a and laser leave surface 52b.As an example, which can be configured to
Glass plate, optionally glass plate is coated anti-reflection coating.It will be apparent that translucent element 52 of the invention is not limited to as described above
Glass plate and can be any other translucent element appropriate.Laser shift unit 50 can be installed to sharp by mounting device
Appropriate location on light level 10 makes the laser launched from the laser generating element 34 of laser level 10 in laser light incident
Desired location on the 52a of surface enters translucent element 52.
In operating process, the laser beam being located in first laser plane P1 from laser generating element 34 is in laser light incident
The translucent element 52 for entering laser shift unit 50 at the 52a of surface, is refracted and turns into inclination side in translucent element 52
To P, then occur to reflect and redirect in second laser plane P2 again when leaving translucent element 52.Second laser plane P2 quilt
A distance d (Fig. 2) is biased from first laser plane P1.In this way, second laser plane P2 and target check surface or working surface
The distance between be reduced, ideally this distance can be decreased to 0mm.
Principle for a better understanding of the present invention shows first laser plane P1 and second laser as shown in Figure 2
The distance between plane P2 d, also referred to as offset or dish, laser light incident surface 52a incline relative to first laser plane P1's
Angle beta, and the 52 thickness t of translucent element on the direction perpendicular to the first and second laser plane P1 and P2.It can be with from Fig. 2
Find out, distance d and thickness t, angle of inclination beta is related with the refractive index n of translucent element 52:
In this way, required distance can be obtained by the material, thickness and inclination angle that properly select translucent element 52
D, and second laser plane P2 can be arranged to as close to metope as needed.Preferably, swashed using this method, second
Laser beam in optical plane P2 can be checked that surface or working surface, such as metope are mobile towards target, close to extremely minimum 0mm.
Typically, in wall plastering application, on the one hand, the laser beam in second laser plane P2 can be by properly
Be placed in outside metope to be applied, therefore be able to indicate that flatness and vertically-aligned degree, can eliminate with dig pit on the wall and
The relevant work in hole and cost are filled up after use.On the other hand, the cement layer thickness for needing to smear is minimized, therefore is saved
Time and materials cost needed for float work.
In the embodiment illustrated in fig. 1, it is located at first laser plane P1 from the laser beam that laser generating element 34 emits
In, and reflect after laser beam in second laser plane P2, the first and second laser plane P1 and P2 are perpendiculars.It removes
Except above-mentioned, the present disclosure additionally applies for generated laser beams to be located at the laser level in horizontal plane.It is located at water for example, generating
The laser level of laser beam in plane can be used for floor or rooftop applications.
Specifically, laser shift unit 50 includes four translucent elements 52, they divide around laser rays generating element 34
Cloth, as shown in fig. 3a.Fig. 3 a be include four translucent elements 52 laser shift unit 50 assembling stereogram.
Using the laser shift unit 50 constructed in such as Fig. 3 a, the laser beam after being reflected by laser shift unit 50 is all surrounded
Laser generating element 34 propagate, and therefore with about 360 ° of spread scope.Fig. 4 shows the spread scope of laser beam.
In Fig. 4, inner most square S be include four translucent elements 52 laser shift unit 50 most inner edge
Boundary, the region inside inner most square S are from the transmitting of laser generating element 34, in refraction anteposition in first laser plane
Laser beam spread scope in P1, is generally centered in laser shift unit 50.Outmost square S1 be include four
The outermost boundary of the laser shift unit 50 of translucent element 52, and region A1, A2, A3 outside outmost square S1
It is laser beam by the spread scope after four translucent elements 52 refraction of laser shift unit 50 with A4, they cover remove in total
About 360 ° of spread scope except blank area 65.Blank area 65 has width t, in laser beam across adjacent translucent element 52
Between edge propagate when generate.Blank area is sufficiently narrow, does not influence for majority application.
As the alternative embodiment of Fig. 3 a, the laser shift unit 50 of laser level 10 can also only have a light transmission
Element 52, for example, as shown in figure 3b, for covering substantially 90 ° of spread scope, if sufficiently large for some applications
If.A glass plate sections are only included as translucent element 52, the cost of laser shift unit 50 is minimum.
As another alternative embodiment of Fig. 3 a, as illustrated in figure 3 c, the laser shift unit 50 of laser level 10 can
With two translucent elements 52 adjacent to each other, to cover substantially 180 ° of coverage area.Including two glass plates as light transmission
Element 52, the advantage of lower cost of laser shift unit 50, therefore the coverage area of laser beam is relatively small.Match in this way
The laser level 10 set can be used in the corner in room.
In the another alternative embodiment of Fig. 3 a, the laser shift unit 50 of laser level 10 can have as shown in Figure 3d
Three translucent elements 52 of arrangement, they cover substantially 270 ° of coverage area.In this case, made using three glass plates
For translucent element 52, the cost is relatively high and the coverage area of laser beam can substantially cover entire wall for laser shift unit 50
Face.The laser level 10 configured in this way can be placed in corner and the centre of metope.
As described above, according to actual requirement and depending on objective cost and special application, laser shift unit 50 can
Translucent element 52 including different number, for use in different laser levels and different applications.The not office of translucent element 52
It is limited to trapezoidal shape shown in figure.Alternatively, translucent element 52 can be round or other shapes of translucent material part.
It has been described now about particular embodiment, similar technology can be used for reflecting different laser
Type, including but be not limited only to laser point, laser rays, can have it is limited be fanned out to angle or 360 degree entire, can have
Different types of laser pattern, such as dotted line.
In addition, application of the invention is not limited to wall plastering application.It will be appreciated that the present invention can be used for that benchmark is required to swash
Light beam is positioned to check any application of surface/working surface as close to its target.
Preferred embodiment shown in earlier in respect of figures describes laser level according to the present invention.However, this field
Interior technical staff should be understood that the present invention is not meant to be restricted to shown in figure and specific structure described above and form.Phase
Instead, this disclosure can be carried out without departing from the scope of the present invention defined by the following claims more
Kind modification, is omitted or is changed at variation.These modifications, variation, omission or variation are considered as being within the scope of the present invention.
Claims (10)
1. the laser shift unit (50) that one kind is used for laser level (10) comprising optical element and be adapted for attachment to laser
The mounting device (60) of level (10), when the laser shift unit (50) is mounted to the laser level (10),
From the laser beam being located in first laser plane (P1) that the laser beam emitting device (30) of laser level (10) is launched by institute
It states optical element to be diverted in second laser plane (P2), second laser plane (P2) is inclined from the first laser plane (P1)
It moves.
2. laser shift unit (50) according to claim 1, wherein the laser beam entered occurs for the optical element
It reflects and/or reflects and be diverted in second laser plane (P2), specifically, the optical element is made of translucent material, or
Person is coated with reflective coating.
3. laser shift unit (50) according to claim 1 or 2, wherein the second laser plane (P2) is parallel to
First laser plane (P1).
4. laser shift unit (50) according to claim 1 or 2, wherein the optical element be circular shape or
Trapezoidal shape.
5. laser level (10) according to claim 1 or 2, wherein the optical element includes the of trapezoidal shape
One optical element, it is preferable that the laser shift unit (50) further includes second optical element adjacent with the first optical element,
It is highly preferred that the laser shift unit (50) further includes the third optical element adjacent with the second optical element, more preferably,
The laser shift unit (50) further includes the 4th optical element, the 4th optical element and first and third optical element phase
It is adjacent.
6. laser level (10) according to claim 5, wherein first, second, third and fourth optical element
It is mutually the same.
7. one kind has the laser level (10) of laser shift unit (50) according to claim 1 to 6,
The laser level (10) includes shell (20), the pendulum body being placed in shell, and the laser being set on pendulum body
Emitter (30), the laser beam emitting device (30) include laser generating element (34), and the laser generating element is for sending out
Penetrate the laser beam in first laser plane (P1), wherein that launches from laser generating element (34) is flat positioned at first laser
Laser beam in face (P1) is diverted in second laser plane (P2) by the optical element, and second laser plane (P2) is by from institute
First laser plane is stated to offset up in the side far from shell (20).
8. laser level (10) according to claim 7, wherein the laser shift unit (50) is by means of its installation
Device (60) removably or permanently is attached to laser level (10).
9. laser level (10) according to claim 7 or 8, wherein
The second laser plane (P2) and working surface are same surfaces；And/or
The first laser plane (P1) and second laser plane (P2) are vertical plane or horizontal plane.
10. the purposes of laser level (10) according to any one of claim 7-9, wherein the laser level
(10) it is used in wall plastering application, or on the floor or roof in room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710405069.6A CN108981653A (en) | 2017-05-31 | 2017-05-31 | Laser level and its laser shift unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710405069.6A CN108981653A (en) | 2017-05-31 | 2017-05-31 | Laser level and its laser shift unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108981653A true CN108981653A (en) | 2018-12-11 |
Family
ID=64501718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710405069.6A Pending CN108981653A (en) | 2017-05-31 | 2017-05-31 | Laser level and its laser shift unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108981653A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5790248A (en) * | 1995-12-29 | 1998-08-04 | Ammann Lasertechnik Ag | Laser beam levelling device |
| CN1396588A (en) * | 2001-07-10 | 2003-02-12 | 三星电子株式会社 | Slender optical pick-up device |
| CN1650200A (en) * | 2002-04-26 | 2005-08-03 | 国际商业机器公司 | Polarizing beamsplitter |
| CN104142144A (en) * | 2009-03-26 | 2014-11-12 | 罗伯特·博世有限公司 | Self-leveling 360 DEG multi-line laser device |
| CN106500673A (en) * | 2015-09-08 | 2017-03-15 | 罗伯特·博世有限公司 | Levelling laser instrument |
-
2017
- 2017-05-31 CN CN201710405069.6A patent/CN108981653A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5790248A (en) * | 1995-12-29 | 1998-08-04 | Ammann Lasertechnik Ag | Laser beam levelling device |
| CN1396588A (en) * | 2001-07-10 | 2003-02-12 | 三星电子株式会社 | Slender optical pick-up device |
| CN1650200A (en) * | 2002-04-26 | 2005-08-03 | 国际商业机器公司 | Polarizing beamsplitter |
| CN104142144A (en) * | 2009-03-26 | 2014-11-12 | 罗伯特·博世有限公司 | Self-leveling 360 DEG multi-line laser device |
| CN106500673A (en) * | 2015-09-08 | 2017-03-15 | 罗伯特·博世有限公司 | Levelling laser instrument |
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Application publication date: 20181211 |
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| RJ01 | Rejection of invention patent application after publication |