CN101206117A - Laser level meter and laser device for making line thereof - Google Patents
Laser level meter and laser device for making line thereof Download PDFInfo
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- CN101206117A CN101206117A CNA2006101707778A CN200610170777A CN101206117A CN 101206117 A CN101206117 A CN 101206117A CN A2006101707778 A CNA2006101707778 A CN A2006101707778A CN 200610170777 A CN200610170777 A CN 200610170777A CN 101206117 A CN101206117 A CN 101206117A
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Abstract
The invention discloses a laser level and a line laser device in the laser level. A heavy hammer pivoted on a main frame is used to define a plumb line, a laser beam produced by a laser module arranged in the heavy hammer is projected into a cylindrical lens arranged in a lens seat on the heavy hammer to convert the laser beam into a planar laser surface, wherein, one end that the lens seat nears the cylindrical lens is provided with a pivot, the other end is provided with a regulating device so as to be coordinated with the pivot of the lens seat to regulate the relative position of the lens seat and the heavy hammer at least in two directions, further to produce the laser surface parallel to the plumb line.
Description
Technical field
The present invention relates to a kind of laser leveler, and be particularly related to a kind of laser leveler that produces the lasing area that is adjacent to metope and wherein beat the linear laser device.
Background technology
Along with development of science and technology, laser leveler has been widely used in building, decoration engineering, with level or the perpendicular alignmnet appurtenance as construction.Many light face laser leveler be owing to can produce level or vertical a plurality of lasing areas, with on object, project can be for reference horizontal line or perpendicular line, thereby the favor of the industry of very being built, decorate.
Though the multiple many light face laser leveler that flattens automatically with weight is arranged, for example, TaiWan, China is announced No. 570188 " multidirectional laser marker instrument improvement " and TaiWan, China is announced patents such as " laser that can hang by the feet " M247820 number, and all disclosing has the laser leveler that can produce a plurality of lasing areas.Yet the laser leveler that above-mentioned patent disclosed owing to be subjected to the restriction that lasing area is adjusted structure, make the lasing area that is produced can't be close to metope and uses, and is unfavorable for the reference of wall construction flatness.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of laser leveler and wherein beat the linear laser device, it can produce the lasing area that is adjacent to metope, is beneficial to the reference of wall construction flatness.
For reaching above-mentioned and other purpose, the invention provides a kind of laser leveler, comprising: frame, weight, laser module, lens pillar, eyeglass seat and adjusting gear.Wherein, weight is to be articulated on the frame, with carry out with respect to frame diaxon at least to rotatablely move, make the center of gravity of weight define a pedal line along gravity direction.Laser module is to be arranged in the weight, in order to produce a laser beam.Lens pillar is to be converted to a lasing area in order to the laser beam that laser module is produced, and lens pillar has first end and second end.The eyeglass seat is arranged on the weight, in order to the device lens pillar, and in first end position of contiguous lens pillar, is provided with a fulcrum.Adjusting gear then is arranged at second end position of the contiguous lens pillar of eyeglass seat, at least two directions, adjusts the relative position of eyeglass seat and weight, with the generation lasing area parallel with aforementioned pedal line in order to the fulcrum that cooperates the eyeglass seat.
In one embodiment, the fulcrum of this laser leveler is to be arranged at two cambered surfaces arranged side by side on the eyeglass seat, and second end position of the contiguous lens pillar of eyeglass seat, be provided with a screw and an inclined-plane, adjusting gear then comprises the two-screw that is arranged at respectively in the screw with inclined-plane one side, in order to be equipped with two cambered surfaces arranged side by side on the eyeglass seat, on two directions, to adjust the relative position of eyeglass seat and weight.
In another embodiment, second end position of the contiguous lens pillar of the eyeglass seat of this laser leveler, be provided with a screw, adjusting gear then comprises an elastic body and the screw that is arranged in the screw of eyeglass seat, in order to cooperate the fulcrum of eyeglass seat, on two directions, to adjust the relative position of eyeglass seat and weight.
The present invention provides a kind of linear laser device of beating in addition, is applicable to a lasing area that produces the plane, to project a linear laser on an object.This dozen linear laser device comprises: main body base, laser module, lens pillar, eyeglass seat and adjusting gear.Wherein, laser module is to be arranged in the main body base, in order to produce a laser beam.Lens pillar is to be converted to lasing area in order to the laser beam that laser module is produced, and lens pillar has first end and second end.The eyeglass seat is to be arranged on the main body base, in order to the device lens pillar, and in first end position of contiguous lens pillar, is provided with a fulcrum.Adjusting gear then is arranged at second end position of the contiguous lens pillar of eyeglass seat, at least two directions, adjusts the relative position of eyeglass seat and main body base, with the lasing area on generation plane in order to the fulcrum that cooperates the eyeglass seat.
In one embodiment, the fulcrum of this dozen linear laser device is to be arranged at two cambered surfaces arranged side by side on the eyeglass seat, and second end position of the contiguous lens pillar of eyeglass seat, be provided with a screw and an inclined-plane, adjusting gear then comprises the two-screw that is arranged at respectively in the screw with inclined-plane one side, in order to be equipped with two cambered surfaces arranged side by side on the eyeglass seat, on two directions, to adjust the relative position of eyeglass seat and main body base.
In another embodiment, second end position of the contiguous lens pillar of the eyeglass seat of this dozen linear laser device, be provided with a screw, adjusting gear then comprises an elastic body and the screw that is arranged in the screw of eyeglass seat, in order to cooperate the fulcrum of eyeglass seat, on two directions, to adjust the relative position of eyeglass seat and main body base.
Because this laser leveler and the adjustment structure of beating the linear laser device wherein, be that fulcrum with first end position that is close to lens pillar is an axle, and with the adjusting gear of second end position that is close to lens pillar, the fulcrum that cooperates the eyeglass seat, on at least two directions, to adjust the relative position of eyeglass seat and main body base, and then produce the lasing area on plane, thereby laser beam can be incident upon an end of lens pillar, be beneficial to produce the lasing area that is adjacent to metope.
For above and other objects of the present invention, feature and advantage can be become apparent, hereinafter special with preferred embodiment, and cooperate appended graphicly, be described in detail below:
Description of drawings
Fig. 1 is a kind of laser leveler stereographic map that shows the preferred embodiment according to the present invention;
Fig. 2 is the part exploded perspective view of the laser leveler of displayed map 1;
Fig. 3 is the diagrammatic cross-section of the laser leveler of displayed map 1;
Fig. 4 is the part exploded perspective view of beating the linear laser device that shows the preferred embodiment according to the present invention;
Fig. 5 is the operation chart of beating the linear laser device of displayed map 4;
Fig. 6 is the other direction operation chart of beating the linear laser device of displayed map 4;
Fig. 7 shows the adjustment structure operation synoptic diagram of beating the linear laser device according to another embodiment of the present invention;
Fig. 8 shows the adjustment structure other direction operation chart of beating the linear laser device according to another embodiment of the present invention.
Description of reference numerals: 10 laser levelers; 11,12,13,14 dozens of linear laser devices; 15,111 laser modules; 16 frames; 17 weights; 21,22,23,24 fan-shaped lasing areas; 25 laser beam; 112 cylindrical lenss; 1,121 first ends; 1,122 second ends; 113,713 eyeglass seats; 1131,1132,1137 cambered surfaces; 1133,1135,1136,411,412 screws; 1134 inclined-planes; 114,115,116,117,118,119,714 screws; 41 shell fragments; 715 elastic bodys.
Embodiment
Please refer to Fig. 1 to shown in Figure 3, it is a kind of laser leveler of the preferred embodiment according to the present invention.As shown in the figure, this laser leveler 10 is except frame 16 and weight 17, beat linear laser device 11,12,13,14 for four that more comprise the fan-shaped lasing area 24 that is used for producing three vertical fan-shaped lasing areas 21,22,23 and a level, and the laser module 15 that produces a downward laser beam 25.
Among the figure, weight 17 is to be articulated on the frame 16, with carry out with respect to frame 16 diaxon at least to rotatablely move, make the center of gravity of weight 17 define a pedal line, and then flatten fan-shaped lasing area 24 of vertical fan-shaped lasing area 21,22,23, level and the downward laser beam 25 that is produced automatically along gravity direction.
Wherein, vertical fan-shaped lasing area 21 and 22 is to be positioned on the identical plane, and when laser leveler 10 during near the metope of construction, and fan-shaped lasing area 21 and 22 metope of should trying one's best is with the reference surface as the wall construction flatness.25 of laser beam are positioned on the straight line of lasing area 23 and lasing area 21 and 22 formed Plane intersects, are arranged at ground reference point when constructing with correspondence.
For at laser leveler 10 during near the metope of construction, the fan-shaped lasing area 21 that is produced and 22 metope of can trying one's best, with reference surface as the wall construction flatness, present embodiment is with in order in the adjustment structure of beating linear laser device 11 and 12 that produces fan-shaped lasing area 21 and 22, dwindle near the volume that takies of metope one side, in order to avoid the fan-shaped lasing area 21 that produces and 22 far away excessively apart from metope as far as possible.Wherein, in order to produce the adjustment structure of beating linear laser device 13 and 14 of fan-shaped lasing area 23 and 24, though do not have this demand, right making for simplification laser leveler 10, in the present embodiment, beat linear laser device 11,12,13 and 14 and all use identical adjustment structure.Therefore, will be example below to beat linear laser device 11, describe the adjustment structure of beating linear laser device 11,12,13 and 14 in detail.
Please refer to shown in Figure 4ly, it is the part exploded perspective view of beating the linear laser device of the preferred embodiment according to the present invention.Among the figure, beat linear laser device 11 and comprise main body base, laser module 111, cylindrical lens 112, eyeglass seat 113 that constitutes by weight 17 and the adjusting gear that constitutes by screw 114,115.Wherein, cylindrical lens 112 be with screw 118,119 pass respectively shell fragment 41 screw 411,412 and the locking on eyeglass seat 113, it also can use as different lens pillars such as semicylindrical lenses and replace.
As shown in the figure, laser module 111 is to be arranged in the weight 17, in order to produce a laser beam.Cylindrical lens 112 is to be converted to lasing area 21 (as Fig. 1) in order to the laser beam that laser module 111 is produced, and has and be used near first end 1121 of metope and second end 1122 away from metope.Eyeglass seat 113 is arranged on the weight 17, in order to device cylindrical lens 112, and in first end, 1121 positions of contiguous cylindrical lens 112, be provided with by two cambered surfaces 1131 arranged side by side and 1132 fulcrums that constitute, in addition, second end, 1122 positions of eyeglass seat 113 contiguous cylindrical lenss 112 then are provided with a screw 1133 and an inclined-plane 1134.Below will be in the lump with reference to figure 5 and Fig. 6, the adjustment principle and the mode of beating linear laser device 11 are described.
As shown in the figure, eyeglass seat 113 is with screw 116,117 pass screw 1135 respectively, 1136 and be locked on the weight 17, and for two cambered surfaces 1131 arranged side by side and 1132 that eyeglass seat 113 can be provided with thereon are fulcrum, to carry out as half seesaw type ground change in displacement, and then adjust the relative position of 17 of eyeglass seat 113 and weights, the screw 1135 and 1136 of eyeglass seat 113 is to be made into taper wide at the top and narrow at the bottom as illustrated in fig. 5, and eyeglass seat 113 is with screw 116 or 117 contacted surfaces and be provided with a cambered surface 1137, with the operating space as 113 tilt displacements of eyeglass seat.
Adjust the direction of eyeglass seat 113 when desire, when making its clockwise direction tilt displacement in Fig. 5, can loosen screw 115 earlier, again screw 114 is locked in the weight 17 gradually, two cambered surfaces 1131 arranged side by side and 1132 that eyeglass seat 113 can be provided with thereon are fulcrum, carry out as the clockwise tilt displacement among Fig. 5, laser beam up to laser module 111 generations, be to enter cylindrical lens 112 on the eyeglass seat 113, and can produce till the lasing area 21 as the plane of Fig. 1 with vertical direction projection.At this moment, the screw 115 that can will loosen is locked once more, eyeglass seat 113 is fixed in the relative position of having finished adjustment on the weight 17.
In addition, adjust the direction of eyeglass seat 113, when making its counter clockwise direction tilt displacement in Fig. 5, can loosen screw 114 earlier, again screw 115 is locked in the weight 17 gradually when desire.At this moment, screw 115 promptly can contact be arranged at the inclined-plane 1134 on the eyeglass seat 113, and two cambered surfaces 1131 arranged side by side and 1132 that eyeglass seat 113 can be provided with thereon are fulcrum, carry out as the anticlockwise tilt displacement among Fig. 5.And when the laser beam that laser module 111 produces, be to enter cylindrical lens 112 on the eyeglass seat 113, and then when producing lasing area 21 as the plane of Fig. 1, promptly stop the action of locking of screw 115 with the vertical direction projection.After, the screw that will loosen again 114 lockings, and eyeglass seat 113 is fixed in the relative position of having finished adjustment on the weight 17.
Please refer to shown in the 7th and 8 figure, it is for playing the adjustment structure operation synoptic diagram of linear laser device according to another embodiment of the present invention.As shown in the figure, the adjustment structure of present embodiment is roughly similar with Fig. 4～Fig. 6, that is second end, 1122 positions at eyeglass seat 713 contiguous circle shape lens 112 are provided with a screw, lock adjustment for screw 714.In addition, adjusting gear is with the elastic body 715 under the position of second end 1122 that is arranged at eyeglass seat 713 contiguous circle shape lens 112, replace the screw 115 among Fig. 6,, make that the carrying out of adjustment work is more easy so that eyeglass seat 713 tilt displacement adjustment in the counterclockwise direction to be provided.Wherein, elastic body 715 can use the assembly that has elastic force as silicon rubber, spring or shell fragment etc., with when loosening screw 714, can use the elastic force of elastic body 715, with eyeglass seat 713 jack-up, and then provide eyeglass seat 713 tilt displacement adjustment in the counterclockwise direction.
By in the above stated specification as can be known, use the laser leveler of beating the linear laser device of the present invention, because beating the volume that takies of a side of the adjustment structure of linear laser device can be relatively little, make laser leveler to produce and be close to the lasing area that is close to metope, and help the reference of wall construction flatness.
Though the present invention discloses as above with preferred embodiment, so it is not in order to limiting the present invention, anyly has the knack of this skill, and various changes and the retouching done without departing from the spirit and scope of the present invention also belong to scope of the present invention.Therefore, protection scope of the present invention defines and is as the criterion when looking accompanying Claim.
Claims (14)
1. a laser leveler is characterized in that, comprising:
One frame;
One weight is articulated on the described frame, with carry out with respect to described frame diaxon at least to rotatablely move, make the center of gravity of described weight define a pedal line along gravity direction;
One first laser module is arranged in the described weight, in order to produce one first laser beam;
One first lens pillar, in order to described first laser beam is converted to one first lasing area, described first lens pillar has one first end and one second end;
One first eyeglass seat is arranged on the described weight, in order to installing described first lens pillar, and in described first end position of contiguous described first lens pillar, is provided with a fulcrum; And
One first adjusting gear, be arranged at described second end position of contiguous described first lens pillar of the described first eyeglass seat, in order to the described fulcrum that cooperates the described first eyeglass seat at least two directions, adjust the relative position of described first eyeglass seat and described weight, to produce described first lasing area parallel with described pedal line.
2. laser leveler as claimed in claim 1, it is characterized in that: described fulcrum is to be arranged at two cambered surfaces arranged side by side on the described first eyeglass seat, and described second end position of contiguous described first lens pillar of the described first eyeglass seat, be provided with a screw and an inclined-plane, described first adjusting gear then comprises the two-screw that is arranged at respectively in the described screw with described inclined-plane one side, in order to be equipped with two cambered surfaces arranged side by side on the described first eyeglass seat, on two directions, to adjust the relative position of described first eyeglass seat and described weight.
3. laser leveler as claimed in claim 1 is characterized in that: more comprise:
One second laser module is arranged in the described weight, in order to produce one second laser beam;
One second lens pillar, in order to described second laser beam is converted to one second lasing area, described second lens pillar has one first end and one second end;
One second eyeglass seat is arranged on the described weight, in order to installing described second lens pillar, and in described first end position of contiguous described second lens pillar, is provided with a fulcrum; And
One second adjusting gear, be arranged at described second end position of contiguous described second lens pillar of the described second eyeglass seat, in order to the described fulcrum that cooperates the described second eyeglass seat at least two directions, adjust the relative position of described second eyeglass seat and described weight, to produce described second lasing area on plane;
Wherein, described first lasing area is to be positioned on the identical plane with described second lasing area.
4. laser leveler as claimed in claim 3, it is characterized in that: the described fulcrum of the described second eyeglass seat is to be arranged at two cambered surfaces arranged side by side on the described second eyeglass seat, and described second end position of contiguous described second lens pillar of the described second eyeglass seat, be provided with a screw and an inclined-plane, described second adjusting gear then comprises the two-screw that is arranged at respectively in the described screw with described inclined-plane one side, in order to be equipped with two cambered surfaces arranged side by side on the described second eyeglass seat, on two directions, to adjust the relative position of described second eyeglass seat and described weight.
5. laser leveler as claimed in claim 3 is characterized in that: more comprise:
One the 3rd laser module is arranged in the described weight, in order to produce one the 3rd laser beam;
One the 3rd lens pillar, in order to described the 3rd laser beam is converted to one the 3rd lasing area, described the 3rd lens pillar has one first end and one second end;
One prismatic glasses seat is arranged on the described weight, in order to installing described the 3rd lens pillar, and in described first end position of contiguous described the 3rd lens pillar, is provided with a fulcrum; And
One the 3rd adjusting gear, be arranged at described second end position of contiguous described the 3rd lens pillar of described prismatic glasses seat, in order to the described fulcrum that cooperates described prismatic glasses seat at least two directions, adjust the relative position of described prismatic glasses seat and described weight, to produce described the 3rd lasing area on plane;
Wherein, described the 3rd lasing area is vertical with described first lasing area and described second lasing area.
6. laser leveler as claimed in claim 5, it is characterized in that: the described fulcrum of described prismatic glasses seat is to be arranged at two cambered surfaces arranged side by side on the described prismatic glasses seat, and described second end position of contiguous described the 3rd lens pillar of described prismatic glasses seat, be provided with a screw and an inclined-plane, described the 3rd adjusting gear then comprises the two-screw that is arranged at respectively in the described screw with described inclined-plane one side, in order to be equipped with two cambered surfaces arranged side by side on described prismatic glasses seat, on two directions, to adjust the relative position of described prismatic glasses seat and described weight.
7. laser leveler as claimed in claim 5 is characterized in that: more comprise:
One the 4th laser module is arranged in the described weight, in order to produce one the 4th laser beam;
One the 4th lens pillar, in order to described the 4th laser beam is converted to one the 4th lasing area, described the 4th lens pillar has one first end and one second end;
One the 4th eyeglass seat is arranged on the described weight, in order to installing described the 4th lens pillar, and in described first end position of contiguous described the 4th lens pillar, is provided with a fulcrum; And
One the 4th adjusting gear, be arranged at described second end position of contiguous described the 4th lens pillar of described the 4th eyeglass seat, in order to the described fulcrum that cooperates described the 4th eyeglass seat at least two directions, adjust the relative position of described the 4th eyeglass seat and described weight, to produce described the 4th lasing area on plane;
Wherein, described the 4th lasing area is vertical with described first lasing area, described second lasing area and described the 3rd lasing area.
8. laser leveler as claimed in claim 7, it is characterized in that: the described fulcrum of described the 4th eyeglass seat is to be arranged at two cambered surfaces arranged side by side on described the 4th eyeglass seat, and described second end position of contiguous described the 4th lens pillar of described the 4th eyeglass seat, be provided with a screw and an inclined-plane, described the 4th adjusting gear then comprises the two-screw that is arranged at respectively in the described screw with described inclined-plane one side, in order to be equipped with two cambered surfaces arranged side by side on described the 4th eyeglass seat, on two directions, to adjust the relative position of described the 4th eyeglass seat and described weight.
9. laser leveler as claimed in claim 7, it is characterized in that: more comprise one the 5th laser module that is arranged in the described weight, in order to produce one the 5th laser beam, described the 5th laser beam is to be positioned on the straight line of described the 3rd lasing area and described first lasing area and the formed described Plane intersects of described second lasing area.
10. laser leveler as claimed in claim 1, it is characterized in that: described second end position of contiguous described first lens pillar of the described first eyeglass seat, be provided with a screw, described first adjusting gear then comprises an elastic body and a screw that is arranged in the described screw of the described first eyeglass seat, in order to cooperate the described fulcrum of the described first eyeglass seat, on two directions, to adjust the relative position of described first eyeglass seat and described weight.
11. beat the linear laser device for one kind, be applicable to a lasing area that produces the plane, it is characterized in that, comprising:
One main body base;
One laser module is arranged in the described main body base, in order to produce a laser beam;
One lens pillar, in order to described laser beam is converted to described lasing area, described lens pillar has one first end and one second end;
One eyeglass seat is arranged on the described main body base, in order to installing described lens pillar, and in described first end position of contiguous described lens pillar, is provided with a fulcrum; And
One adjusting gear, be arranged at described second end position of the contiguous described lens pillar of described eyeglass seat, on at least two directions, adjust the relative position of described eyeglass seat and described main body base in order to the described fulcrum that cooperates described eyeglass seat, to produce the described lasing area on plane.
12. the linear laser device of beating as claimed in claim 11, it is characterized in that: described fulcrum is to be arranged at two cambered surfaces arranged side by side on the described eyeglass seat, and described second end position of the contiguous described lens pillar of described eyeglass seat, be provided with a screw and an inclined-plane, described adjusting gear then comprises the two-screw that is arranged at respectively in the described screw with described inclined-plane one side, in order to be equipped with two cambered surfaces arranged side by side on described eyeglass seat, on two directions, to adjust the relative position of described eyeglass seat and described main body base.
13. the linear laser device of beating as claimed in claim 11, it is characterized in that: described second end position of the contiguous described lens pillar of described eyeglass seat, be provided with a screw, described adjusting gear then comprises an elastic body and a screw that is arranged in the described screw of described eyeglass seat, in order to cooperate the described fulcrum of described eyeglass seat, on two directions, to adjust the relative position of described eyeglass seat and described main body base.
14. the linear laser device of beating as claimed in claim 13 is characterized in that: described fulcrum is to be arranged at two cambered surfaces arranged side by side on the described eyeglass seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101707778A CN101206117A (en) | 2006-12-22 | 2006-12-22 | Laser level meter and laser device for making line thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101707778A CN101206117A (en) | 2006-12-22 | 2006-12-22 | Laser level meter and laser device for making line thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101206117A true CN101206117A (en) | 2008-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101707778A Pending CN101206117A (en) | 2006-12-22 | 2006-12-22 | Laser level meter and laser device for making line thereof |
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| CN (1) | CN101206117A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106716060A (en) * | 2014-09-11 | 2017-05-24 | 罗伯特·博世有限公司 | Method for mounting a pendulum laser device |
| CN108714845A (en) * | 2018-06-14 | 2018-10-30 | 贵州大学 | A kind of angle grinder cutting flattening device |
| CN111024002A (en) * | 2019-12-30 | 2020-04-17 | 新疆八一钢铁股份有限公司 | Method for detecting alignment degree of vertical roller by using laser infrared level meter |
| CN114094433A (en) * | 2021-09-29 | 2022-02-25 | 南通梓华电子科技有限公司 | High-power laser module and laser level meter |
-
2006
- 2006-12-22 CN CNA2006101707778A patent/CN101206117A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106716060A (en) * | 2014-09-11 | 2017-05-24 | 罗伯特·博世有限公司 | Method for mounting a pendulum laser device |
| CN106716060B (en) * | 2014-09-11 | 2020-10-27 | 罗伯特·博世有限公司 | Method for mounting a wobble laser device |
| CN108714845A (en) * | 2018-06-14 | 2018-10-30 | 贵州大学 | A kind of angle grinder cutting flattening device |
| CN111024002A (en) * | 2019-12-30 | 2020-04-17 | 新疆八一钢铁股份有限公司 | Method for detecting alignment degree of vertical roller by using laser infrared level meter |
| CN114094433A (en) * | 2021-09-29 | 2022-02-25 | 南通梓华电子科技有限公司 | High-power laser module and laser level meter |
| CN114094433B (en) * | 2021-09-29 | 2024-02-13 | 南通梓华电子科技有限公司 | High-power laser module and laser level meter |
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Open date: 20080625 |