CN210864202U - Optical device and laser module - Google Patents
Optical device and laser module Download PDFInfo
- Publication number
- CN210864202U CN210864202U CN201921966316.0U CN201921966316U CN210864202U CN 210864202 U CN210864202 U CN 210864202U CN 201921966316 U CN201921966316 U CN 201921966316U CN 210864202 U CN210864202 U CN 210864202U
- Authority
- CN
- China
- Prior art keywords
- optical device
- laser
- laser light
- substrate
- scanning
- 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.)
- Active
Links
Images
Landscapes
- Semiconductor Lasers (AREA)
Abstract
The utility model provides an optical device and laser module, the device includes: a substrate and a plurality of inserts having optical properties; the base plate has first end and second end, has seted up a plurality of notches between first end and the second end for it is right respectively to realize through the mode of pegging graft a plurality of inserted sheets are fixed. Through utilizing the utility model provides an optical device and laser module can form scanning formula discontinuity line facula or some facula, can the wide application in fields such as laser medical treatment is cosmetic, detection and detection.
Description
Technical Field
The utility model relates to a semiconductor laser field especially relates to an optical device and laser module.
Background
At present, most scanning schemes for laser beams are continuous, output light spots are in a continuous line shape or a surface shape, and discontinuous point-shaped or discontinuous line-shaped scanning light spots cannot be formed. The system for continuously scanning and outputting continuous light spots has a simple structure, has the main function of only finishing the continuous change of the emergent angle of the light beam, cannot form discontinuous points or discontinuous line scanning, and is mainly realized by a conventional reflector group.
Disclosure of Invention
In view of this, one of the main objects of the present invention is to provide an optical device and a laser module, which can form a scanning type discontinuous spot or linear spot by designing an optical device with a novel structure.
The technical scheme of the utility model is realized like this:
the utility model provides an optical device, the device includes: a substrate and a plurality of inserts having optical properties; the base plate has first end and second end, has seted up a plurality of notches between first end and the second end for it is right respectively to realize through the mode of pegging graft a plurality of inserted sheets are fixed.
In the above-mentioned scheme, from first end to second end, have the first inclination that is the functional relation between a plurality of inserted sheets and the base plate bottom surface, have the second inclination the same with first inclination between notch and the base plate bottom surface.
In the above-mentioned scheme, the inserted sheet includes: planar inserts, or cambered inserts.
In the above aspect, the notch includes: and the width of the square groove, the wedge-shaped groove or the arc-shaped groove is matched with that of the inserting sheet.
In the above aspect, the insert includes a laser receiving portion, and the laser receiving portion has at least a reflective characteristic.
In the above scheme, the length of the laser-receiving section and the beam aperture satisfy a preset relationship, so that the beam is totally incident on the laser-receiving section.
In the above scheme, the substrate is a quadrilateral, and the first end and the second end are opposite ends.
The utility model also provides a laser module, the module includes above optical device, laser light source, wherein, the laser of laser light source transmission is received respectively to a plurality of inserted sheets of optical device, and laser forms scanning formula facula through a plurality of inserted sheet reflections that have different inclination.
In the above scheme, the module further includes a movable reflector, and the interrelation between the movable reflector and the laser light source and the optical device satisfies a preset condition, so that the movable reflector receives the laser light emitted by the laser light source and reflects the laser light to the optical device, and the optical device reflects the laser light again to form a scanning type light spot.
In the above scheme, the module further includes a driving device for driving the optical device to translate or rotate, so as to reflect the laser light to form a scanning type light spot.
The utility model has the advantages of as follows:
firstly, the novel optical device structure has lower cost and smaller size, so that the whole scanning structure is simpler; can form discontinuous spot or line light spot, solves the problems of high cost, complex structure and the like in the prior art that the discontinuous light spot is difficult to form.
Second, the core components in the entire module, such as light sources, optics, do not move, greatly reducing the variation due to core component movement.
Drawings
Fig. 1 is a schematic structural diagram of an optical device according to the present invention;
fig. 2 is a schematic structural diagram of an optical device according to the present invention;
fig. 3 is a schematic structural diagram of the optical device of the present invention;
FIGS. 4 a-4 c are schematic diagrams illustrating the laser-induced light receiving portion limitation condition of the optical device according to the present invention;
fig. 5 is a first schematic structural diagram of a first embodiment of the laser module of the present invention;
fig. 6 is a schematic structural diagram of a first embodiment of the laser module of the present invention;
fig. 7 is a schematic structural diagram of a second embodiment of the laser module according to the present invention;
fig. 8 is a second schematic structural diagram of a second embodiment of the laser module of the present invention;
fig. 9 is a schematic perspective view of a first embodiment of the laser module according to the present invention;
fig. 10 is a schematic perspective view of a second embodiment of the laser module according to the present invention;
fig. 11 is a fourth schematic structural diagram of the optical device of the present invention;
fig. 12 is a schematic structural diagram of an optical device according to the present invention.
Description of reference numerals:
the optical device 1 is an optical device, 11 is a substrate, 111 is a first end, 112 is a second end, 113 is a notch, 12 is an insert, 121 is a laser receiving portion, 2 is a fast axis collimator, 3 is a slow axis collimator, 4 is a driving device, 5 is a movable reflector, 6 is a scanning spot receiving portion, a is a first inclination angle, and b is a second inclination angle.
Detailed Description
The embodiment of the utility model provides an optical device and laser module through utilizing the optical device who has base plate and inserted sheet, realizes scanning formula discontinuity point facula or line light spot, can wide application in fields such as medical cosmetology, industry.
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances for purposes of describing the embodiments of the invention herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Fig. 1 to 3 are schematic structural diagrams of the optical device of the present invention, and as shown in the drawings, the optical device includes a substrate 11 and a plurality of inserts 12 having optical characteristics; the substrate 11 has a first end 111 and a second end 112, and a plurality of notches 113 are formed between the first end 111 and the second end 112, so as to fix the insert 12 by means of insertion.
Further, from the first end 111 to the second end 112, the plurality of blades 12 and the bottom surface of the substrate 11 have a first inclination angle a in a functional relationship, and the notch 113 and the bottom surface of the substrate 11 have a second inclination angle b which is the same as the first inclination angle a.
The initial value of the first inclination angle a (the second inclination angle b) can be set according to actual requirements, and the optimal initial value is 5-10 degrees.
It should be noted that the functional relationship of the first inclination angle a (the second inclination angle b) mainly includes, but is not limited to, an increasing functional relationship or a decreasing functional relationship, and specifically, the functional relationship may be a linear relationship or a non-linear relationship; this is mainly for making the incident angle of laser on the inserted sheet be the gradient and slowly change, and then output stable discontinuous equidistant or non-equidistant scanning light field, the embodiment of the utility model discloses use the functional relation to be the linear relation of incremental type as the example and show.
In the embodiment of the utility model, the inserted sheet includes and is not limited to: the planar insert or the cambered insert may be a convex cambered surface or a concave cambered surface when the insert is a cambered insert, as shown in fig. 11 and 12. The notches 113 include, but are not limited to: a square groove, a wedge-shaped groove or an arc-shaped groove which is matched with the width of the inserting sheet 12; the distance between adjacent notches 113 and the distance between adjacent blades 12 may be equal or different, and are not particularly limited, and the following embodiments take the notches 113 as square grooves as examples.
The term "match" specifically means that the width of the slot 113 is equal to the width of the tab 12, or the width of the slot 113 is slightly larger than the width of the tab 12; the slot 113 is matched with the width of the insert 12 in that the insert 12 can be just inserted into the slot 113, so that the insert 12 is fixed.
Further, the insert 12 includes a laser receiving portion 121, and the laser receiving portion 121 has at least a reflection characteristic and is capable of reflecting the received laser light. The length of the laser receiving portion 121 and the beam diameter satisfy a predetermined relationship so that the entire laser beam is incident on the laser receiving portion, and specifically, the conditions that the receiving portion 121 needs to satisfy are shown in fig. 4a to 4 c.
Fig. 4a shows a case where the optical device is rotatable by an external mechanical component, and the length of the laser receiving portion 121 and the beam aperture satisfy the following relationship:
dmin= D/[sin(θn+θbecome)](formula one)
May also define thetaBecome=θInitial△ θ, so equation one above can also be expressed as:
dmin=D/[sin(θn+ θinitial-△θ)](formula two)
Wherein, thetanDenotes the angle between any insert 12 and the bottom surface of the substrate 11, dminThe minimum length of the laser receiving part 121 which is an insertion sheet, D is the aperture size of the incident beam, and thetaBecomeIs the instantaneous angle, θ, of the substrate 11 with the horizontalInitialIs the angle between the initial position of the substrate 11 and the horizontal direction, △ θ is the instantaneous amount of rotation of the substrate 11.
Fig. 4b and 4c show the case of having a movable mirror, where fig. 4b shows the case where the substrate 11 is positioned on the left side of a reference line parallel to the mirror, and fig. 4c shows the case where the substrate 11 is positioned on the right side of the reference line parallel to the mirror.
In fig. 4b and 4c, the relationship that the length of the laser-receiving section 121 and the beam diameter satisfy is:
dmin= D/[sin(θ+△θ2±△θ1)](formula three)
dminThe minimum length of the laser receiving part 121 is an insertion sheet, D is the aperture size of the incident beam, and theta is the distance between the movable mirror and water at the initial positionAngle in the horizontal direction, △ theta1Angle between the substrate and the movable mirror at the initial position, △ theta2Is the included angle between any inserting piece and the substrate.
In the embodiment of the present invention, the material of the substrate 11 and/or the insertion sheet 12 includes: metal, or plastic, or ceramic, or glass; the insert 12 includes, but is not limited to, a mirror.
Preferably, the substrate 11 is a quadrilateral, and the first end 111 and the second end 112 are opposite ends.
The embodiment of the utility model provides a still provide a laser module, the laser module include above optical device 1, laser light source (the attached drawing does not show), wherein, the laser of laser light source transmission is received respectively to a plurality of inserted sheets 12 of optical device 1, and laser forms scanning formula facula through the 12 reflections of a plurality of inserted sheets that have different inclination, the embodiment of the utility model provides an in, scanning formula facula is discontinuous point facula or line light spot, and it is formed on scanning facula receiving part 6.
The embodiment of the utility model provides an use laser light source to exemplify as semiconductor laser, consider semiconductor laser emission laser beam's divergence angle, consequently can set up fast axle collimating mirror 2, slow axle collimating mirror 3 on the light path. Certainly, the arrangement of the fast axis collimating mirror 2 and the slow axis collimating mirror 3 is not necessary, and when the laser light source is a laser of other types, the fast axis collimating mirror 2 and/or the slow axis collimating mirror 3 may be selectively arranged, or none of them is arranged, which is specifically determined by the beam shape and the spot application requirements.
As shown in fig. 5, 6, and 9, the laser module further includes a fast axis collimator 2 and a slow axis collimator 3, which are used to perform fast and slow axis collimation on the laser light emitted from the laser light source.
Further, the module may further include a movable mirror 5, and a relationship between the movable mirror 5 and the laser light source and the optical device 1 satisfies a preset condition, so that the movable mirror 5 receives the laser light emitted by the laser light source and reflects the laser light to the optical device 1, and the optical device 1 reflects the laser light again to form a scanning type light spot.
With reference to fig. 5 and 6, the process specifically includes: the movable mirror 5 can rotate or translate at a certain angle under the drive of an external drive device. Taking rotation as an example, the movable mirror 5 receives a first laser beam at an initial predetermined position and reflects the first laser beam to the first insert 12 at the first end 11 of the optical device 1, the laser receiving portion 121 of the first insert 12 receives the first laser beam, and the laser receiving portion 121 has a reflection characteristic, so that the first laser beam can be reflected to the scanning spot receiving portion to form a first scanning spot; at this time, the movable mirror 5 is rotated to a certain angle, the movable mirror 5 receives the second laser beam and reflects it to the second insert 12 (according to the actual required spot interval, the nth insert can be used, n is greater than 1) at the first end 11 of the optical device 1, the laser receiving part 121 of the second insert 12 receives the second laser beam and reflects the second laser beam to the scanning spot receiving part to form a second scanning spot (or nth), and so on … …
In the above solution, with reference to fig. 7, 8, and 10, there is another implementation form, that is: the movable reflecting mirror 5 is not arranged, a driving device 4 linked with the optical device 1 is arranged aiming at the optical device 1, and the driving device 4 is used for driving the optical device 1 to translate or rotate so as to reflect the laser to form a scanning type light spot.
The process specifically comprises the following steps: the driving device 4 is generally arranged outside the shaft, the optical device 1 receives a first laser beam at an initial preset position, the first laser beam is incident on the laser receiving part 121 of the first inserting sheet 12 at the first end 11 of the optical device 1, and the laser receiving part 121 reflects the first laser beam onto the scanning laser receiving part 6 to form a first scanning spot; at this time, the driving device 4 is used to drive the optical device 1 to rotate to the next position, the laser receiving part 121 of the insert sheet 12 on the optical device 1 receives the second beam of laser (according to the actual required spot interval, the nth insert sheet can be used, n is greater than 1), and reflects the second beam of laser to the scanning laser receiving part 6 to form a second scanning spot (or nth), and so on … …
In the embodiment of the present invention, the position of the scanning laser receiving portion is not specifically limited, and it is related to the position of the optical device 1 and the requirement of the actual application on the form of the light spot. In principle, as long as the laser reflected by each insert 12 of the optical device 1 can be smoothly reflected to the scanning spot receiving portion 6, the scanning spot receiving portion 6 can be disposed at a plurality of different positions on the premise of ensuring small overall size and no waste of light energy.
Optionally, an optical waveguide and/or a lens assembly may be optionally disposed behind the optical device 1, so as to homogenize the light spot mainly according to the requirements of practical applications.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An optical device, comprising: a substrate and a plurality of inserts having optical properties; the base plate has first end and second end, has seted up a plurality of notches between first end and the second end for it is right respectively to realize through the mode of pegging graft a plurality of inserted sheets are fixed.
2. The optical device as claimed in claim 1, wherein the plurality of tabs have a first angle of inclination with respect to the bottom surface of the substrate as a function of the first end to the second end, and the notches have a second angle of inclination with respect to the bottom surface of the substrate that is the same as the first angle of inclination.
3. The optical device of claim 1, wherein the insert comprises: planar inserts, or cambered inserts.
4. The optical device of claim 1, wherein the notch comprises: and the width of the square groove, the wedge-shaped groove or the arc-shaped groove is matched with that of the inserting sheet.
5. The optical device of claim 1, wherein the insert comprises laser receiving portions having at least a reflective characteristic.
6. The optical device according to claim 5, wherein a length of the laser receiving portion and a beam aperture satisfy a predetermined relationship such that the beam is entirely incident on the laser receiving portion.
7. The optical device according to any of claims 1 to 6, wherein the substrate is quadrilateral, the first and second ends being opposite ends.
8. A laser module comprising the optical device of any one of claims 1 to 7, a laser light source, wherein,
a plurality of inserting pieces of the optical device respectively receive laser emitted by the laser source, and the laser is reflected by the inserting pieces with different inclination angles to form scanning type light spots.
9. The module according to claim 8, further comprising a movable mirror, wherein the movable mirror and the laser light source and the optical device are mutually related to satisfy a preset condition, so that the movable mirror receives the laser light emitted by the laser light source and reflects the laser light to the optical device, and the optical device reflects the laser light again to form a scanning type light spot.
10. The module of claim 8, further comprising a driving device for driving the optical device to translate or rotate to reflect the laser light to form a scanning spot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921966316.0U CN210864202U (en) | 2019-11-14 | 2019-11-14 | Optical device and laser module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921966316.0U CN210864202U (en) | 2019-11-14 | 2019-11-14 | Optical device and laser module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210864202U true CN210864202U (en) | 2020-06-26 |
Family
ID=71289067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921966316.0U Active CN210864202U (en) | 2019-11-14 | 2019-11-14 | Optical device and laser module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210864202U (en) |
-
2019
- 2019-11-14 CN CN201921966316.0U patent/CN210864202U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0759178B1 (en) | Directed reflection optical device | |
| US9246038B2 (en) | Light collecting and emitting apparatus, method, and applications | |
| CN101622567B (en) | Optical scanner and two-dimensional image display employing the same | |
| EP2771730B1 (en) | A lens and an illuminating device equipped with the lens | |
| WO2017183661A1 (en) | Light guide plate and surface-lighting device | |
| EP3644102A1 (en) | Mirror, grating and lens system for coupling light | |
| US6611303B1 (en) | Backlight device for a liquid crystal display device | |
| CN210864202U (en) | Optical device and laser module | |
| CN114114565A (en) | Semiconductor laser collimating device | |
| US20070273976A1 (en) | Optical Device for Processing a Beam, in Particular a Laser Beam | |
| US11555989B2 (en) | Optical device for modifying light distribution | |
| CN111029906B (en) | Correcting system of laser, light source system and projection device | |
| US20020122185A1 (en) | 3D-shape measurement apparatus | |
| US6767106B2 (en) | Edge-lit luminaire having prismatic optical control | |
| CN113241584A (en) | Semiconductor laser beam combining system and semiconductor laser | |
| US6597507B1 (en) | V-groove grating mirror and external resonator type wavelength variable light source using the mirror | |
| US6563987B1 (en) | Optical multiplexing/demultiplexing device with variable branching ratio and optical coupler with variable coupling ratio | |
| US5309261A (en) | Optical system for laser beam scanner | |
| CN1670564A (en) | Method for realizing semiconductor laser beam shaping by coaxial symmetrical micro-reflector array | |
| WO2023181482A1 (en) | Variable optical attenuator and optical switch | |
| CN215931245U (en) | Light beam stabilizing system and detection equipment | |
| CN1838276A (en) | Optical system and optical recording/reproducing device using the same | |
| US4600270A (en) | Beam recombination via cylindrical mirror | |
| CN217932062U (en) | Laser radar system | |
| CN218863999U (en) | Lighting device and lighting lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |