CN102902062A - Linear scanning structure and laser marker using same - Google Patents
Linear scanning structure and laser marker using same Download PDFInfo
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- CN102902062A CN102902062A CN2012100516393A CN201210051639A CN102902062A CN 102902062 A CN102902062 A CN 102902062A CN 2012100516393 A CN2012100516393 A CN 2012100516393A CN 201210051639 A CN201210051639 A CN 201210051639A CN 102902062 A CN102902062 A CN 102902062A
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Abstract
A linear scanning structure comprises a torsion member, a scanning mirror and a plurality of grating stripes, wherein the scanning mirrior is connected to the torsion member and can be used for reciprocating movements within a predetermined angle, and the grating stripes are formed on the scanning mirrior and used for receiving a laser beam and enabling the laser beam to produce diffraction thus to generate a plurality of diffraction beams.
Description
Technical field
The invention relates to a kind of laser marker device, and particularly relevant for a kind of linear sweep structure and use its laser marker device.
Background technology
Generally speaking, the laser marker device of single-point projection is incident upon laser beam and forms luminous point on the screen, when the user carries out bulletin, must mobile laser beam so that laser spot drop on the position of institute's wish prompting.Yet a single luminous point energy produce an effect is limited, can't contain zone in a big way.With regard to known laser marker device, when usually being used for carrying out bulletin, usually need to indicate passage or key area in the bulletin, but because known laser designator only can be exported single luminous point, in order to indicate that emphasis must dangle laser spot often at projection screen, not only make us feeling under the weather, also easily thinking is produced and disturb, affect the work of bulletin.
Summary of the invention
The present invention is relevant for a kind of linear sweep structure and use the laser marker device of this linear sweep structure, can make laser beam generate the diffraction light beam via diffraction.
According to an aspect of the present invention, propose a kind of linear sweep structure, comprise a torsion member, one scan mirror and many grating fringes.Scanning mirror connects torsion member, and scanning mirror can carry out reciprocating vibration take torsion member as the axle center in a predetermined angular.Grating fringe is formed on the scanning mirror, and in order to receive a laser beam, grating fringe more can make laser light produce diffraction and generate several diffraction light beams.
In one embodiment, this a little diffraction light beams each self-excited oscillation on the direction of vibration of scanning mirror, with formation multistage scanning light beam, and scanning light beam is projected on the projecting plane to produce several projected light.
According to a further aspect in the invention, propose a kind of laser marker device and comprise at least one LASER Light Source and a linear sweep structure.LASER Light Source is in order to launch a laser beam.The linear sweep structure comprises a torsion member, one scan mirror and many grating fringes.Scanning mirror connects torsion member, and scanning mirror can carry out reciprocating vibration in a predetermined angular take torsion member in the axle center.Grating fringe is formed on the scanning mirror, can be in order to receiving laser beam, and those grating fringes more can make laser beam produce diffraction and generate several diffraction light beams.
In one embodiment, this a little diffraction light beams each self-excited oscillation on the direction of vibration of scanning mirror, with formation multistage scanning light beam, and scanning light beam is projected on the projecting plane to produce several projected light.
For there is better understanding above-mentioned and other aspect of the present invention, embodiment cited below particularly, and cooperation accompanying drawing are described in detail below:
Description of drawings
Figure 1A and 1B illustrate respectively the synoptic diagram according to the linear sweep structure that is applied to the laser marker device of one embodiment of the invention.
Fig. 2 A and 2B illustrate respectively the I-I diagrammatic cross-section of grating fringe of the linear sweep structure of Fig. 2 C.
Fig. 2 C is the synoptic diagram of linear sweep structure.
Fig. 3 illustrates the synoptic diagram according to the linear sweep structure that is applied to double laser light source of an embodiment.
The main element symbol description
10: projection plane
100: the laser marker device
110: LASER Light Source
120: the linear sweep structure
122: torsion member
124: scanning mirror
124a, 124b: mirror surface
126: grating fringe
B, B1, B2: laser beam
C1～C3: scanning light beam
D1～D3: diffraction light beam
L1～L3: line segment
P1～P3: projected light
S, S1, S2: sweep trace
Embodiment
The linear sweep structure of present embodiment and use its laser marker device is made grating fringe, so that the laser beam of reflection forms a plurality of diffraction light beams via the diffraction of grating fringe on the mirror surface of scanning mirror.When scanning mirror on single shaft during reciprocating vibration, just each self-excited oscillation and form multistage low-angle scanning light beam of these diffraction light beams, and to be connected each other be a wide-angle scanning light beam.When these scanning light beams are projected onto on the projecting plane (such as screen), can form several projected light at screen.And scanning mirror is when carrying out the reciprocal vibration of high speed, these luminous points are also followed high speed swinging simultaneously on the projecting plane, the luminous point of these swings forms a continuous line segment through the mankind's " persistence of vision " phenomenon again, and the scanning angle maximum of scanning light beam can reach 180 degree.Therefore, when needs project a line, just need not as wide-angle as the known technology reverse scanning mirror or double swerve laser designator.
Below propose various embodiment and be elaborated, embodiment in order to as the example explanation, is not the scope in order to limit wish protection of the present invention only.
Please refer to Figure 1A and 1B, it illustrates respectively the synoptic diagram according to the linear sweep structure that is applied to the laser marker device of one embodiment of the invention.Laser marker device 100 comprises a LASER Light Source 110 and a linear sweep structure 120.LASER Light Source 110 is in order to launch a laser beam B.Linear sweep structure 120 comprises a torsion member 122, one scan mirror 124 and many grating fringes 126.Scanning mirror 124 connects torsion members 122, and produces take torsion member 122 as axle and to reverse, and makes scanning mirror 124 carry out reciprocating vibration in a predetermined angular.Grating fringe 126 is formed on the scanning mirror 124, in order to receive laser beam B and to make laser beam B produce diffraction and form a plurality of diffraction light beam D1～D3 via grating fringe 126.
In Figure 1A, scanning mirror 124 is in actionless state, laser beam B behind the generation diffraction only can form a plurality of projected light P1～P3 at projection plane 10, it comprise the formed projected light P1 of principal reflection light beam D1 and ± the secondary folded light beam D2 in N rank and the formed projected light P2 of D3 and P3, N is the positive integer more than or equal to 1.Only illustrate among Figure 1A ± projected light P2 and P3 that the secondary folded light beam D2 in 1 rank and D3 produce, but this is not limited.In Figure 1B, when scanning mirror 124 carried out reciprocating vibration, these diffraction light beams D1～D3 each self-excited oscillation on the direction of vibration of scanning mirror 124 was to form multistage low-angle scanning light beam C1～C3.The projection of these scanning light beams C1～C3 is repeatedly to be occurred and disappeared by a plurality of projected light, and the people can see as shown in Figure 1B line segment L1～L3 at projection plane 10 via the phenomenon of persistence of vision.Therefore, being formed on the projection plane 10 no longer is projected light P1～P3, but is connected the sweep trace S of the large-size that forms by a plurality of line segment L1～L3.
Please refer to the 2A～2C figure, wherein Fig. 2 C is the synoptic diagram of linear sweep structure 120, and Fig. 2 A and 2B illustrate respectively the I-I diagrammatic cross-section of grating fringe 126 of the linear sweep structure 120 of Fig. 2 C.In Fig. 2 A, scanning mirror 124 has a mirror surface 124a, and grating fringe 126 is formed on the mirror surface 124a with a periodic concaveconvex structure.In Fig. 2 B, scanning mirror 124 has two- mirror face 124a and 124b, and grating fringe 126 is formed at respectively on two-mirror face 124a and the 124b with a periodic concaveconvex structure.The cycle of supposing grating fringe 126 is d, and the wavelength of laser beam B is λ, and the incident angle of laser beam B is θ, when meeting 2dsin θ=N λ, will produce the diffraction phenomenon and forms the diffraction light beam on N rank.
Please refer to 2B and 3 figure, wherein Fig. 3 illustrates the synoptic diagram according to the linear sweep structure that is applied to double laser light source of an embodiment.When scanning mirror 124 is double mirror, grating fringe 126 can form respectively on two-mirror face 124a and the 124b so that the dual-laser light beam B1 of reflection and B2 via the diffraction of grating fringe 126 respectively at forming sweep trace S1 and S2 on two projection planes 11 and 12.
In sum, although the present invention discloses as above with preferred embodiment, so it is not to limit the present invention.The persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is as the criterion when looking claims person of defining.
Claims (12)
1. linear sweep structure comprises:
One torsion member;
The one scan mirror connects this torsion member, and this scanning mirror can carry out reciprocating vibration take this torsion member as the axle center in a predetermined angular; And
Several grating fringes are formed on this scanning mirror, can be in order to receiving a laser beam, and those grating fringes more can make this laser beam produce diffraction and generate several diffraction light beams.
2. linear sweep structure as claimed in claim 1, wherein those diffraction light beams each self-excited oscillation on the direction of vibration of this scanning mirror is to form several scanning light beams.
3. linear sweep structure as claimed in claim 1, wherein this scanning mirror has a mirror surface, and those grating fringes are formed on this mirror surface with a periodic concaveconvex structure.
4. linear sweep structure as claimed in claim 1, wherein this scanning mirror has the two-mirror face, and this two-mirror face is oppositely arranged, and those grating fringes are formed at respectively on this two-mirror face with a periodic concaveconvex structure respectively.
5. linear sweep structure as claimed in claim 2, wherein those scanning light beams are projected on the projecting plane to produce several projected light.
6. linear sweep structure as claimed in claim 1, wherein those diffraction light beams by a principal reflection light beam and at least the secondary folded light beam of single order formed.
7. laser marker device comprises:
At least one LASER Light Source is in order to launch a laser beam; And
One linear sweep structure comprises:
One torsion member;
The one scan mirror connects this torsion member, and this scanning mirror can carry out reciprocating vibration take this torsion member as the axle center in a predetermined angular; And
Several grating fringes are formed on this scanning mirror, can be in order to receiving this laser beam, and those grating fringes more can make this laser beam produce diffraction and generate several diffraction light beams.
8. laser marker device as claimed in claim 7, wherein those diffraction light beams each self-excited oscillation on the direction of vibration of this scanning mirror is to form several scanning light beams.
9. laser marker device as claimed in claim 7, wherein this scanning mirror has a mirror surface, and those grating fringes are formed on this mirror surface with a periodic concaveconvex structure.
10. laser marker device as claimed in claim 7, wherein this scanning mirror has the two-mirror face, and this two-mirror face is oppositely arranged, and those grating fringes are formed at respectively on this two-mirror face with a periodic concaveconvex structure respectively.
11. laser marker device as claimed in claim 8, wherein those scanning light beams are projected on the projecting plane to produce several projected light.
12. laser marker device as claimed in claim 7, wherein those diffraction light beams by a principal reflection light beam and at least the secondary folded light beam of single order formed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201161512776P | 2011-07-28 | 2011-07-28 | |
| US61/512,776 | 2011-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102902062A true CN102902062A (en) | 2013-01-30 |
Family
ID=47574388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100516393A Pending CN102902062A (en) | 2011-07-28 | 2012-03-01 | Linear scanning structure and laser marker using same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102902062A (en) |
| TW (1) | TW201306407A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106814366A (en) * | 2017-03-23 | 2017-06-09 | 上海思岚科技有限公司 | A kind of laser scanning range-finding device |
| CN107990847A (en) * | 2017-12-18 | 2018-05-04 | 中国矿业大学(北京) | A kind of digging laneway profile based on laser optical path adjustment indicates method and device |
| CN109491074A (en) * | 2017-09-11 | 2019-03-19 | 宏达国际电子股份有限公司 | Optics base station |
| US11047985B2 (en) | 2017-09-11 | 2021-06-29 | Htc Corporation | Optical base station |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101095098A (en) * | 2004-11-12 | 2007-12-26 | 新标志股份有限公司 | Visual system |
| CN101276063A (en) * | 2007-03-31 | 2008-10-01 | 索尼德国有限责任公司 | Image generating apparatus |
| CN201204719Y (en) * | 2008-05-28 | 2009-03-04 | 麦剑聪 | Combined luminous ray projection device |
| US20110109554A1 (en) * | 2008-07-04 | 2011-05-12 | Optinnova | Interactive display device and method, using a detection camera and optical pointer |
-
2012
- 2012-01-03 TW TW101100235A patent/TW201306407A/en unknown
- 2012-03-01 CN CN2012100516393A patent/CN102902062A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101095098A (en) * | 2004-11-12 | 2007-12-26 | 新标志股份有限公司 | Visual system |
| CN101276063A (en) * | 2007-03-31 | 2008-10-01 | 索尼德国有限责任公司 | Image generating apparatus |
| CN201204719Y (en) * | 2008-05-28 | 2009-03-04 | 麦剑聪 | Combined luminous ray projection device |
| US20110109554A1 (en) * | 2008-07-04 | 2011-05-12 | Optinnova | Interactive display device and method, using a detection camera and optical pointer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106814366A (en) * | 2017-03-23 | 2017-06-09 | 上海思岚科技有限公司 | A kind of laser scanning range-finding device |
| CN106814366B (en) * | 2017-03-23 | 2024-04-30 | 上海思岚科技有限公司 | Laser scanning range unit |
| CN109491074A (en) * | 2017-09-11 | 2019-03-19 | 宏达国际电子股份有限公司 | Optics base station |
| US11047985B2 (en) | 2017-09-11 | 2021-06-29 | Htc Corporation | Optical base station |
| CN107990847A (en) * | 2017-12-18 | 2018-05-04 | 中国矿业大学(北京) | A kind of digging laneway profile based on laser optical path adjustment indicates method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201306407A (en) | 2013-02-01 |
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Application publication date: 20130130 |