CN1657875A - Level gauge - Google Patents
Level gauge Download PDFInfo
- Publication number
- CN1657875A CN1657875A CN 200410005595 CN200410005595A CN1657875A CN 1657875 A CN1657875 A CN 1657875A CN 200410005595 CN200410005595 CN 200410005595 CN 200410005595 A CN200410005595 A CN 200410005595A CN 1657875 A CN1657875 A CN 1657875A
- Authority
- CN
- China
- Prior art keywords
- level meter
- light source
- reflecting body
- light
- circular cone
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Images
Landscapes
- Optical Elements Other Than Lenses (AREA)
Abstract
This invention relates to a kind of spirit level, this spirit level includes light source and cone reflector, this cone reflector's surface is reflect surface, use for reflecting the light beam from light source, make light beam present circumference radiation light beam level after reflecting, among them, light source this close to cone reflector set up summit pinnacle, and put it on the axis of this cone reflector centre.
Description
[technical field]
The present invention relates to a kind of level meter, especially about a kind of level meter that carries out the circumference sign.
[background technology]
At present, people are in work progress, particularly in interior exterior wall fitment process, on different walls, be difficult to determine same surface level, has only the method that adopts dipstick metering, horizontal line roughly on the wall draws, this method not only speed is slow, and out of true, make construction quality can not get guaranteeing, perhaps utilize the isobaric relation of liquid in the elongated water pipe, on different walls, obtain contour same surface level mark, but this method is difficult to be applied on the large-scale operational base, and people's invention level meter is in order to indicate horizontal datum for this reason.
The mode that the prior art level meter indicates horizontal datum mainly contains two kinds of direct outgoing formula and optically-active formulas.Wherein directly the outgoing formula is to adopt prismatic mirror that laser beam is scattered to bigger angle in the horizontal direction to form a word light outgoing, and makes it be radiated at the body surface of required sign.The disadvantage of this kind mode is through outgoing beam horizontal direction angle behind the prismatic mirror limited, it is a word light limited length of outgoing, for in particular cases, needing that determinand is carried out longer horizontal datum indicates, or need 360 to spend when indicating in full week, then need repeatedly to indicate or will be above-mentioned dual mode or have not easy to operate or the numerous and diverse shortcoming of unitized construction is arranged by the realization that combines of many arrangements of mirrors group.The laser facula high speed rotating that another kind of optically-active mode will be point-like forms horizontal covering of the fan, utilizes the characteristics of people's persistence of vision, and this luminous point can form a straight line hot spot in the distant place of the vertical surfaces of revolution, reaches the sign purpose.The shortcoming of this mode is that the rotation of mechanism's part can make system produce vibrations, has influence on the precision of system, and needs power during rotation, and the manufacturing cost of instrument will be improved, and it is big that volume becomes.
[summary of the invention]
In order to overcome the high and bulky defective of level meter cost that prior art adopts point of rotation shaped laser spot, indicate level meter but the invention provides the circumference that a kind of cost is low, simple in structure and volume is little.
The technical scheme that technical solution problem of the present invention is adopted is: a kind of level meter is provided, this level meter comprises light source and circular cone reflecting body, this circular cone reflector surface is a reflecting surface, be used to reflect light beam from light source, make reflection back light beam be circumference radiation laser beam plane, wherein, the summit that this light source closes on this circular cone reflecting body is provided with, and places on the central axis of this circular cone reflecting body.
Compared with prior art, the present invention has the following advantages: because of level meter of the present invention adopts the circular cone reflecting body, when the light beam that sends when this light source is incident upon this circular cone reflecting body, light beam is reflected and is the circumference radiation, form the horizontal circle side face, this level meter need not rotation and can reach circumference and indicate, the luminous energy loss that not only can reduce assembly, simplified structure and avoid, so this level meter has low cost, simple in structure and effect that volume is little.
[description of drawings]
Fig. 1 is the optical system synoptic diagram of level meter of the present invention.
Fig. 2 is an X planar section light path synoptic diagram of the present invention.
Fig. 3 is a Y planar section light path synoptic diagram of the present invention.
Fig. 4 is the perspective view of level meter of the present invention.
[embodiment]
As shown in Figure 1, level meter 100 of the present invention comprises semicondcutor laser unit 10, aspheric surface prismatic mirror 20, aspheric mirror 30 and circular cone reflecting body 40.
This aspheric surface prismatic mirror 20 is column substantially, employing glass is made, also can adopt other light transmissive material to make, it comprises two optics end faces, i.e. first light entrance face 21 and first light-emitting face 22, wherein this first light entrance face 21 and this first light-emitting face 22 are the convex aspheric surface, and aspheric surface prismatic mirror 20 can produce a light beam diffusion and converge effect at specific direction, is circular light beam in order to produce cross sectional shape.
This aspheric mirror 30 also has two optics end faces, i.e. second light entrance face 31 and second light-emitting face 32, and this biend is the convex aspheric surface.The aperture opening ratio of this aspheric mirror 30 is big than the aperture opening ratio of aspheric surface prismatic mirror 20.
This circular cone reflecting body 40 is coniform, conical surface 41 has good reflection potential, but the plating reflectance coating, and drift angle is 90 degree, the maximum gauge of this circular cone reflecting body 40 is not less than the projection in zone diameter that light produces at aspheric mirror 30, to accept the light beam from aspheric mirror 30 fully.
As shown in Figure 4, this semicondcutor laser unit 10, aspheric surface prismatic mirror 20, aspheric mirror 30 and circular cone reflecting body 40 are linear array successively, and said modules is positioned on the same central shaft, be first plane of incidence, 21 settings that semicondcutor laser unit 10 closes on this aspheric surface prismatic mirror 20, first exit facet 22 that second plane of incidence 31 of this aspheric mirror 30 closes on this aspheric surface prismatic mirror 20 is provided with, and second light-emitting face 32 of aspheric mirror 30 is closed on the summit of this circular cone reflecting body 40.
As shown in Figures 2 and 3, during work, 10 emitted light beams of this semicondcutor laser unit are incident upon first light entrance face 21 of aspheric surface prismatic mirror 20, reason owing to semicondcutor laser unit 10 itself, institute's emitting laser bundle is different with diffusion on the Y in-plane in mutually perpendicular X in-plane, then beam cross section is non-circular, can be by first light entrance face 21 of this aspheric surface prismatic mirror 20 and the special shape of second light-emitting face 22, light beam on the Y direction is produced diffusion respectively or converges effect, is circle so that beam cross-section shape is corrected.As shown in the figure, little by the light beam of semicondcutor laser unit 10 outgoing in Y in-plane diffusion angle, then spread by light beam on 21 pairs of these directions of first light entrance face of aspheric surface prismatic mirror 20.When laser beam by this aspheric surface prismatic mirror 20, and shine when this aspheric mirror 30, the cross section of laser beam is rounded.This light beam that still is diffusion type is transmitted through on the light entrance face 31 of aspheric mirror 30, and the effect of converging by aspheric mirror 30 makes the light beam of incident change the parallel beam outgoing into again.The light beam of this parallel outgoing is incident upon the conical surface 41 of circular cone reflecting body 40, its incident angle with respect to conical surface 41 is 45 degree, according to reflection law, this incident beam is to be the reflection angle outgoing of 45 degree with respect to conical surface 41, the drift angle of this circular cone reflecting body 40 is 90 degree again, if this moment is these level meter 100 settings perpendicular to the ground, then by the light beam after circular cone reflecting body 40 reflection with state parallel to the ground to around radiation, be and have certain thickness light beam face, reach the purpose that this level meter 100 indicates surface levels with this.
Certainly, as long as guaranteeing the conical surface 41 of this circular cone reflecting body 40 is one to be 45 degree with central axis and to be obliquely installed, and the toroidal reflective surface that the size relative with beam direction is suitable gets final product, thereby can control the thickness of the light beam face of final outgoing by the size of controlling this reflecting surface, make the sign precision higher.
In addition, level meter of the present invention also can adopt other light source, but and when adopting the rounded laser aid in other outgoing beam cross section or other light supply apparatus, the light beam that then need not the aspheric surface prismatic mirror 20 in the above-mentioned embodiment and directly adopt aspheric mirror 30 will be diffusion type changes parallel beam into, utilizes circular cone reflecting body 40 that the parallel beam reflection is helped all radial parallel beams plane again; And, then can directly utilize circular cone reflecting body 40 to reach the purpose that circumference indicates for the converging property of outgoing beam light source preferably itself.
Level meter of the present invention utilizes the circular cone reflecting body that beam reflection is formed circumference radiation laser beam plane, this level meter need not rotation can reach the circumference sign, the luminous energy loss that not only can reduce assembly, simplified structure and avoid, so this level meter has low cost, simple in structure and effect that volume is little.
Claims (15)
1. a level meter comprises light source, it is characterized in that: this level meter also comprises the circular cone reflecting body that is used to reflect from light beam of light source, and certain zone of its conical surface has good reflection potential, can make reflection back light beam be circumference radiation laser beam plane.
2. level meter as claimed in claim 1 is characterized in that: this circular cone reflector surface has reflectance coating.
3. as each described level meter in claim 1 or 2, it is characterized in that: this circular cone reflecting body drift angle is 90 degree.
4. level meter as claimed in claim 1 is characterized in that: the summit that this light source closes on this circular cone reflecting body is provided with, and places on the central axis of this circular cone reflecting body.
5. level meter, it comprises a light source, it is characterized in that: this level meter also comprises an annular reflection body, the central axis of its reflecting surface and light beam that light source sends is 45 degree and is obliquely installed, this reflecting body is used to reflect the light beam from light source, make reflection back light beam be circumference radiation laser beam plane, wherein, the reflecting surface of this light source and this reflecting body is oppositely arranged.
6. level meter as claimed in claim 5 is characterized in that: this reflector surface has reflectance coating.
7. level meter as claimed in claim 5 is characterized in that: this light source is a laser aid.
8. level meter as claimed in claim 7 is characterized in that: this light source is a semicondcutor laser unit.
9. level meter as claimed in claim 8 is characterized in that: this level meter further comprises the aspheric surface prismatic mirror, in order to correct the light emitted bundle of this semicondcutor laser unit, makes its cross section rounded.
10. a level meter has light source, it is characterized in that:
The emergent light axis that has with light source is the reflecting body that special angle is provided with, and its surface be a reflecting surface, and this reflecting body is used for the light beam of reflection from light source, make to reflect afterwards beam divergence to horizontal plane,
11. level meter as claimed in claim 10 is characterized in that this reflecting body is that a cone and surface have reflectance coating.
12. level meter as claimed in claim 11 is characterized in that this circular cone reflecting body drift angle is 90 degree.
13. level meter as claimed in claim 10 is characterized in that this light source is a LASER Light Source.
14. level meter as claimed in claim 13 is characterized in that this level meter is provided with aspheric mirror between light source and reflecting body, is used for the light beam of light source outgoing is modified to parallel beam.
15. level meter as claimed in claim 14 is characterized in that this level meter further is provided with the aspheric surface prismatic mirror between aspheric mirror and light source, is used for outgoing beam cross section with light source to be modified to and to be bordering on circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410005595A CN100578147C (en) | 2004-02-18 | 2004-02-18 | Level gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410005595A CN100578147C (en) | 2004-02-18 | 2004-02-18 | Level gauge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1657875A true CN1657875A (en) | 2005-08-24 |
| CN100578147C CN100578147C (en) | 2010-01-06 |
Family
ID=35007513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200410005595A Expired - Fee Related CN100578147C (en) | 2004-02-18 | 2004-02-18 | Level gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100578147C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175515A (en) * | 2011-12-22 | 2013-06-26 | 喜利得股份公司 | Laser system for producing a linear laser marking |
| CN103250027A (en) * | 2010-10-14 | 2013-08-14 | 罗伯特·博世有限公司 | Optimization of a conical lens/cap system for producing a standard light plane |
| CN101726288B (en) * | 2009-12-23 | 2014-09-24 | 王鹏飞 | Quick and accurate self-leveling level |
| CN104714308A (en) * | 2015-01-06 | 2015-06-17 | 杨军 | Optical element generating 360-degree collimated light beam |
| CN105371830A (en) * | 2015-12-07 | 2016-03-02 | 长春理工大学 | Laser marking device based on cone off-axis reflection |
| CN107386611A (en) * | 2017-07-24 | 2017-11-24 | 王英杰 | The method of a kind of paving stone material or ceramic tile and the device for implementing this method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110966993B (en) * | 2019-11-12 | 2021-09-14 | 广东博智林机器人有限公司 | Alignment marking device |
-
2004
- 2004-02-18 CN CN200410005595A patent/CN100578147C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101726288B (en) * | 2009-12-23 | 2014-09-24 | 王鹏飞 | Quick and accurate self-leveling level |
| CN103250027A (en) * | 2010-10-14 | 2013-08-14 | 罗伯特·博世有限公司 | Optimization of a conical lens/cap system for producing a standard light plane |
| CN103175515A (en) * | 2011-12-22 | 2013-06-26 | 喜利得股份公司 | Laser system for producing a linear laser marking |
| CN103175515B (en) * | 2011-12-22 | 2016-12-07 | 喜利得股份公司 | For producing the laser system of linear laser labelling |
| CN104714308A (en) * | 2015-01-06 | 2015-06-17 | 杨军 | Optical element generating 360-degree collimated light beam |
| CN105371830A (en) * | 2015-12-07 | 2016-03-02 | 长春理工大学 | Laser marking device based on cone off-axis reflection |
| CN107386611A (en) * | 2017-07-24 | 2017-11-24 | 王英杰 | The method of a kind of paving stone material or ceramic tile and the device for implementing this method |
| CN107386611B (en) * | 2017-07-24 | 2023-08-01 | 王英杰 | Method for paving stone or ceramic tile and device for implementing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100578147C (en) | 2010-01-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8238050B2 (en) | Reflectors made of linear grooves | |
| US8919002B2 (en) | Laser system for creating a linear laser marking | |
| KR20010108062A (en) | A backlight for correcting diagonal line distortion | |
| US5997156A (en) | Lighting device for generating a rectangular pattern at the work area, E. G. for illuminating pedestrian crossings | |
| US8749898B2 (en) | Stepped flow-line concentrators and collimators | |
| JPH02228689A (en) | Back light display device | |
| JP2010251318A (en) | Irradiation device using reflector, lighting system, and condenser | |
| KR20080074535A (en) | Collimator for backlight unit and lcd using the same | |
| JP2017146602A (en) | Device for shaping laser beam | |
| US20180284472A1 (en) | Light collimating structure, light collimating substrate, manufacturing method thereof, backlight module, and display device | |
| CN104714308A (en) | Optical element generating 360-degree collimated light beam | |
| CN100578147C (en) | Level gauge | |
| US7068446B2 (en) | Compact non-imaging light collector | |
| CN103827573A (en) | Surface light source device and display device | |
| CN116026793B (en) | BRDF and BTDF measurement system based on off-axis parabolic reflector | |
| CN115951329A (en) | MEMS laser radar light collimation annular scanning device and method | |
| CN1223876C (en) | Linear light beam reshaper | |
| CN111545919B (en) | Laser shock peening device and method for multi-beam coupling light spots | |
| CN114421265A (en) | Laser for scanning word line | |
| US20050155239A1 (en) | Level device | |
| CN101494354A (en) | High-power laser diode array pump cavity and running method | |
| CN221261288U (en) | Optical lens module and lamp | |
| CN2833643Y (en) | Combined laser differential scanning rotating mirror | |
| CN1320388C (en) | Light splitting apparatus for parallel type laser level gauges | |
| CN219266687U (en) | Multi-line segment surface type reflecting conical mirror and laser module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100106 Termination date: 20150218 |
|
| EXPY | Termination of patent right or utility model |