CN209842191U - Point-line light source - Google Patents
Point-line light source Download PDFInfo
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- CN209842191U CN209842191U CN201920764347.1U CN201920764347U CN209842191U CN 209842191 U CN209842191 U CN 209842191U CN 201920764347 U CN201920764347 U CN 201920764347U CN 209842191 U CN209842191 U CN 209842191U
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Abstract
The utility model discloses a point light source, which comprises a shell, wherein a mounting groove is arranged on the front end surface of the shell, a light-emitting groove is processed on the side wall of the mounting groove, a mounting cavity is arranged from the rear end surface of the shell to the inside of the shell, a laser collimation point light source is arranged in the mounting cavity, the front end of the mounting cavity is provided with a light-through hole which is communicated with the mounting groove and the light-emitting groove; positioning grooves are formed in the mounting groove and positioned on two sides of the light through hole, and a cylindrical mirror is mounted in each positioning groove; the positioning groove can have different configurations and is in point contact with the end surface of the cylindrical mirror or in line contact with the cylindrical surface of the cylindrical mirror; an elastic positioning sheet can be arranged on the front end face of the shell to effectively improve spot light spots and line forming quality; meanwhile, the cylindrical mirror has the function of a debugging mechanism, and the cylindrical mirror can be debugged before use.
Description
Technical Field
The utility model relates to a laser light source technical field, concretely relates to dotted line light source.
Background
The point-line light source can form a line light source with a point in the center of a laser line by projection on the surface of an object, and is widely applied to the fields of buildings, decorations and the like.
The cylindrical mirror is an important line-forming optical element in a line light source, a laser collimated light beam forms a plane light curtain after passing through the cylindrical mirror, and a cylinder of the cylindrical mirror is required to be perpendicular to an optical axis of a laser collimated point light source to obtain a high-precision plane light curtain; therefore, the positioning and debugging mode of the cylindrical mirror has a decisive influence on the precision and stability of the plane light curtain.
The traditional cylindrical mirror positioning structure adopts a pair of saw slits which are symmetrically distributed relative to the center of an optical axis to form a seesaw structure, a cylindrical mirror is fixed on the seesaw, and screws of the saw slits on two sides are utilized to debug and position the cylindrical mirror relative to the verticality of the optical axis. In addition, the structural scheme is difficult to realize automatic debugging, and has long training period, low debugging efficiency and long production period of staff.
The cylindrical mirror is fixed by the saw kerf in a seesaw structure, and the cylindrical mirror is fixed by the spring pressing sheet.
Disclosure of Invention
The utility model aims at providing a dotted line light source, the constant head tank structure of seting up on the housing face of this line light source can be convenient for the debugging location of cylindrical mirror, improves dotted line light source's debugging precision and stability.
In order to realize the task, the invention adopts the following technical scheme:
a point-line light source comprises a shell, wherein a mounting groove is formed in the front end face of the shell, a light-emitting groove is formed in the side wall of the mounting groove, a mounting cavity is formed from the rear end face of the shell to the inside of the shell, a laser collimation point light source is mounted in the mounting cavity, a light-passing hole is formed in the front end of the mounting cavity, and the light-passing hole is communicated with the mounting groove and the light-emitting groove; the mounting groove in be located logical unthreaded hole both sides and be formed with the constant head tank, install the cylindrical mirror in the constant head tank, wherein, the configuration of constant head tank include following two kinds:
i, the upper edges of two sides of each positioning groove are two non-parallel positioning edges, and the positioning edges are in point contact with the circumferences of two end faces of a cylindrical mirror;
II, the upper edge of one side of each positioning groove is a positioning edge, and the positioning edge is in point contact with the circumferences of two end surfaces of the cylindrical mirror; the other side of the positioning groove and the side wall of the mounting groove are overlapped to form a positioning surface, and the positioning surface is in line contact with the cylindrical surface of the cylindrical mirror.
Furthermore, the front end of the shell is provided with an elastic positioning sheet for fixing the cylindrical mirror and optimizing imaging, the elastic positioning sheet comprises a fixing sheet, one side of the fixing sheet is provided with an arc-shaped pressing sheet, and the pressing sheet is provided with a light outlet; the lower edge of the pressing sheet is provided with a spacer.
Furthermore, the fixing sheet is provided with a fixing hole.
Furthermore, the elastic positioning piece is fixed on the front end face of the shell through fixing glue, fixing screws or welding modes, so that the cylindrical mirror is positioned at the lower part of the pressing piece.
Furthermore, the radial two sides of the front end of the shell are symmetrically provided with debugging holes communicated with the mounting groove, and debugging screws are assembled in the debugging holes.
Further, for the configuration I and the configuration II, the width of the positioning groove is gradually reduced along the direction of the optical axis far away from the laser collimation point light source, and the end with the larger width of the positioning groove is communicated with the light through hole.
Further, for configuration I, the positioning edges of the upper edges at the two sides of the positioning groove are symmetrical with each other.
Further, for the configuration I and the configuration II, the positioning groove is an arc groove, a trapezoidal square groove or other polygonal grooves, the positioning groove and the bottom surface of the mounting groove penetrate to form the positioning edge or the positioning surface, and the cylindrical mirror is in point contact with the positioning edge and in line contact with the positioning surface when being mounted.
Furthermore, the mounting groove is a strip-shaped groove, traverses the front end face of the shell or is positioned in the front end face, and is provided with a pair of side walls which are parallel to each other, wherein one side wall is divided into two sections by the light-emitting groove, so that the side walls are discontinuous.
Further, for the configuration II, the positioning edge of the positioning groove is inclined to the side wall of the mounting groove.
The invention has the following technical characteristics:
1. the utility model discloses the dovetail groove of symmetric distribution has been seted up on the bottom surface in the cylindrical mirror mounting groove of terminal surface before the point line source casing, the polygonal groove of variable radius's arc groove or other shapes, thereby positioning edge and the locating surface that is used for installing the cylindrical mirror have been formed in making the cylindrical mirror mounting groove, form point contact or locating surface and cylindrical mirror cylinder shape formation line contact between the both sides terminal surface of this positioning edge and cylindrical mirror, cylindrical mirror axial displacement debugging in-process can the accurate adjustment cylindrical mirror axis be 90 contained angles with the optical axis of light source, thereby make the precision adjustment reach 0 error condition, this structure also can make the cylindrical mirror stable positioning simultaneously.
2. In an embodiment of the point-line light source, after the cylindrical mirror is debugged and positioned, four radial point positions of the end surfaces on the two sides of the cylindrical mirror are fixed by using a quick positioning adhesive, the four point positions are quickly fixed, so that the bonding stress borne by the cylindrical mirror is balanced, the debugging precision variation is very small, and then a slow-curing super glue point is used in grooves of the end surfaces on the two sides of the cylindrical mirror, so that the cylindrical mirror is fixed and can bear high and low temperature, falling and other impacts, and the requirements of customers can be well met.
3. In another embodiment of the point-line light source, after the cylindrical mirror is debugged, an elastic positioning sheet can be further arranged on the front end face to improve the line quality of the cylindrical mirror and the point light spot quality of the line center; under the condition, the cylindrical mirror can be fixed without glue, and the debugging screw is added, so that the position of the cylindrical mirror can be debugged according to the debugging precision of customer requirements when in use, and the customer requirements are better met.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 (a) is a schematic diagram of a positioning groove in the first configuration (top view of the front end face of the housing), (b) is a schematic diagram of a positioning groove in the first configuration, the positioning groove being a circular arc groove, (c) is a schematic diagram of a positioning groove in the first configuration, the positioning groove being a trapezoidal square groove, (d) is a schematic diagram of a cylindrical mirror assembled in the first configuration of the positioning groove, (e) is a schematic diagram of a positioning groove in the second configuration, and (f) is a schematic diagram of a cylindrical mirror assembled in the second configuration;
FIG. 3 is a schematic view of the present invention with an elastic cover;
FIG. 4 is a schematic structural view of the elastic locating plate;
FIG. 5 is a schematic view of the elastic locating piece being fixed by a fixing screw;
FIG. 6 is a schematic top view of the structure of FIG. 5;
FIG. 7 is a schematic cross-sectional view of the structure of FIG. 5 along a cross-section of a cylindrical mirror;
fig. 8 is a schematic cross-sectional view of the structure shown in fig. 5 along the axial direction of the cylindrical mirror.
The reference numbers in the figures illustrate: the laser positioning device comprises a shell 1, a front end face 2, a mounting groove 3, a positioning groove 4, a positioning edge 5, a light through hole 6, a first glue dispensing groove 7, a cylindrical mirror 8, a light emitting groove 9, a laser alignment point light source 10, a fixing piece 11, a pressing piece 12, a light emitting opening 13, a fixing hole 14, a separating piece 15, a fixing screw 16, a debugging screw 17, a debugging hole 18 and a positioning face 20.
Detailed Description
The utility model discloses a point light source, which comprises a shell 1, wherein a mounting groove 3 is arranged on the front end surface 2 of the shell 1, a light-emitting groove 9 is processed on the side wall of the mounting groove 3, a mounting cavity is arranged from the rear end surface of the shell 1 to the inside of the shell 1, a laser collimation point light source 10 is arranged in the mounting cavity, the front end of the mounting cavity is provided with a light-through hole 6, and the light-through hole 6 is communicated with the mounting groove 3 and the light-emitting groove 9;
the mounting groove 3 is provided with positioning grooves 4 on two sides of the light through hole 6, and the positioning grooves 4 are provided with cylindrical mirrors 8, wherein the positioning grooves 4 can be of various configurations, including the following two types:
i, two unparallel positioning edges 5 are arranged on the upper edges of two sides of each positioning groove 4, and the positioning edges 5 are in point contact with the circumferences of two end faces of a cylindrical mirror 8;
II, a positioning edge 5 is arranged at the upper edge of one side of each positioning groove 4, and the positioning edges 5 are in point contact with the circumferences of two end surfaces of the cylindrical mirror 8; the other side of the positioning groove 4 and the side wall of the mounting groove 3 are overlapped to form a positioning surface 20, and the positioning surface 20 and the cylindrical surface of the cylindrical mirror 8 form a line contact.
In the point-line light source of the utility model, the mounting groove 3 is arranged on the front end surface 2 of the shell 1, under the general configuration, after the cylindrical mirror 8 is mounted, the cylinder of the cylindrical mirror 8 is at least 0.05mm above and exposed out of the front end surface 2; in actual use, the cylindrical body of the cylindrical mirror 8 may be lower than the front end face 2. The shape of the mounting groove 3 may be various, such as a bar shape (including the case of traversing the front end face 2), a circular shape, or other shapes.
The principle of the point-line light source is as follows: the laser collimation point light source 10 is arranged in the shell 1, the collimation laser beam emitted by the point light source is emitted from the light through hole 6 and is divided into two parts, one part forms a plane light curtain through the transmission, refraction and reflection of the cylindrical mirror 8 after penetrating through the cylindrical mirror 8, namely a laser line is formed, the other part of light beam directly passes through the light-emitting groove 9, the collimation laser beam is formed at the central part in the optical axis direction and on the fan-shaped plane light curtain, namely a point light spot is formed at the central part on the laser line, and the laser line light source is a so-called laser point light source. In order to ensure the precision of the planar light curtain, the cylinder of the cylindrical mirror 8 must be perpendicular to the optical axis of the laser collimation point light source 10, which requires that the cylindrical mirror 8 can be precisely adjusted and positioned after being installed.
In the scheme, in order to facilitate the positioning and debugging of the cylindrical mirror 8, positioning grooves 4 are formed in the mounting groove 3, and a pair of positioning grooves 4 are distributed on two sides of the light through hole 6; the pair of positioning grooves 4 can be in the same shape, symmetrically distributed and in different shapes; the maximum width of the positioning slot 4 should be smaller than the diameter of the cylindrical mirror 8.
Optionally, for configurations i and ii, the width of the positioning slot 4 gradually decreases along the direction away from the axis of the housing 1, that is, the direction of the optical axis of the laser collimation point light source, and the end of the positioning slot 4 with the larger width is penetrated through the light through hole 6.
As shown in fig. 2 (a) and (e), the width of the positioning groove 4 refers to the distance between the upper edges of the two sides of the positioning groove 4, i.e. the positioning edges 5, and the width of one end close to the light through hole 6 is large and is communicated with the light through hole 6, and the width gradually decreases toward the other end. The positioning groove 4 is structured such that the cylindrical mirror 8 can slide on the positioning groove 4 to adjust the position.
Preferably, in configuration i, the positioning edges 5 of the upper edges of the two sides of the positioning groove 4 are symmetrical to each other.
As shown in fig. 2 (a), the positioning grooves 4 with a symmetrical structure are adopted, so that the processing and molding are facilitated, and when the cylindrical mirror 8 is adjusted, two sides can move symmetrically, and the stability in the debugging process is ensured. After the cylindrical mirror 8 is placed in the positioning groove 4, the two end surface circumferences of the cylindrical mirror 8 are respectively in point contact with the two positioning edges 5 of the positioning groove 4, and four points on the two end surface circumferences of the cylindrical mirror 8 are in contact with the positioning edges 5; when the cylindrical mirror 8 is debugged, the cylindrical mirror 8 slides along the axial direction of the cylindrical mirror, and the included angle of 90 degrees between the axis of the cylindrical mirror 8 and the optical axis of the laser collimation point light source 10 can be accurately adjusted, so that the linear precision reaches a zero-error state.
In addition to this configuration, the two positioning slots 4 may also be asymmetrical, for example, the two positioning slots 4 may not have the same length, or may have different tendencies of width change, etc.
Optionally, the positioning groove 4 is an arc groove or a trapezoidal square groove, the positioning edge 5 and the positioning surface 20 are formed by the positioning groove 4 and the bottom surface of the mounting groove 3 in a penetrating manner, and the cylindrical mirror 8 is installed in a point contact with the positioning edge 5 and in a line contact with the positioning surface 20.
As shown in fig. 2 (b) to (d), the positioning groove 4 may have various shapes, such as an arc groove shown in fig. 2 (b), where the arc groove refers to a cross section of the positioning groove 4 having an arc-shaped structure; the positioning groove 4 shown in fig. 2 (c) is a trapezoidal square groove, i.e., the cross section of the positioning groove 4 has a trapezoidal structure. The two positioning grooves 4 penetrate through the bottom surface of the mounting groove 3 to form a positioning edge 5 and a positioning surface 20 in the processing process, and the cylindrical mirror 8 is in point contact with the positioning edge 5 and in line contact with the positioning surface 20 when mounted. The positioning groove 4 with the two shapes has the characteristics of convenient processing and debugging.
In this embodiment, the positioning slot 4 may also have other polygonal shapes, such as a step shape, a circular arc shape, and a combination of trapezoid shapes; the positioning edge 5 can be formed by the penetration of the positioning groove 4 and the bottom surface of the mounting groove 3.
Optionally, for the configuration i and the configuration ii, in this embodiment, the mounting groove 3 is a strip-shaped groove, and the mounting groove 3 traverses the front end surface 2 of the housing 1 or is located in the front end surface 2, and has a pair of side walls parallel to each other; as shown in fig. 1, one of the side walls of the mounting groove 3 is divided into two sections by the light exit groove 9 so that the side wall is discontinuous.
The mounting groove 3 is generally processed into a strip-shaped groove during processing, and two ends of the mounting groove 3 can penetrate through the front end surface 2 of the shell 1 or can not penetrate through the mounting groove; the mounting groove 3 is used for controlling the height of the cylindrical mirror 8 exposed out of or sunk into the front end face 2, so that precision debugging and dispensing positioning are facilitated, and meanwhile, the cylindrical mirror 8 can be controlled to radially shake, so that the bonding stress on the cylindrical mirror 8 is balanced. The parallel side walls refer to the opposite side walls of the mounting groove 3 along the length direction.
The mounting groove 3 can be processed into other shapes, such as a circle, an ellipse, etc., according to the actual conditions of the process.
Preferably, as shown in fig. 2 (e), the positioning edge 5 of the positioning groove 4 is inclined to the side wall of the mounting groove 3.
In the above-mentioned configuration of the positioning groove 4 of the second type, the positioning edge 5 on one side of the positioning groove 4 is a bevel edge, i.e. is inclined to the side wall of the mounting groove 3, which is to change the width of the positioning groove 4, so that the cylindrical lens 8 can be adjusted in position in a sliding manner after being placed; the other side is overlapped with the side wall of the mounting groove 3 to form a positioning surface 20, namely the side wall of the positioning groove 4 is the side wall of the mounting groove 3; in this configuration, the positioning edge 5 on one side of the positioning groove 4 makes point contact with the circumference of both end faces of the cylindrical mirror 8, while the positioning surface 20 on the other side makes line contact with the cylindrical surface of the cylindrical mirror 8. The cylindrical mirror 8 is mounted as shown in fig. 2 (f).
Preferably, for configuration i, the angle α between the two positioning edges 5 of the positioning groove 4 is 0 ° to 20 °. The inventor verifies that the cylindrical mirror 8 has high debugging precision speed and good stability in the angle range.
Similarly, for configuration ii, the angle between the positioning edge 5 on one side of the positioning groove 4 and the positioning surface 20 on the other side can also be processed to be 0 ° to 20 °.
The detailed features of the mounting groove 3 and the detailed features of each configuration are described above, and the dotted line light source of the present invention is further described by the following embodiments.
Example 1
On the basis of the foregoing technical solution, as shown in fig. 2 and 3, in this embodiment, the cylindrical mirror 8 is fixed by dispensing, specifically:
first dispensing grooves 7 are symmetrically distributed on the edges of the two sides of the mounting groove 3; as shown in fig. 2 (a) to (f), the first dispensing chute 7 is a chute; after the cylindrical mirror 8 is installed, glue is quickly positioned through the first glue dispensing groove 7, for example, photosensitive glue, and the gluing stress borne by the cylindrical mirror 8 during quick fixation is balanced due to the balanced distribution of the four glue dispensing positions, so that the precision variation is small.
After the cylindrical mirror 8 is installed, a second glue dispensing groove is formed between the end face of the cylindrical mirror 8 and two sides of the positioning groove 4, after glue is dispensed through the first glue dispensing groove 7, epoxy glue or silicon rubber which is slowly cured is dispensed in the second glue dispensing groove, and then the cylindrical mirror 8 is effectively fixed.
The four first glue dispensing positions on the upper end surface of the mounting groove 3 and the two axial ends of the cylindrical mirror 8 can be provided with glue dispensing grooves with different configurations or not.
Example 2
In this embodiment, an elastic positioning piece for fixing the cylindrical mirror 8 is disposed at the front end of the housing 1. One function of the elastic locating plate is to improve the imaging quality of the cylindrical mirror and the quality of the spot, and the other function is to elastically press for precision debugging.
The elastic positioning sheet comprises a fixing sheet 11, a fixing hole 14 is formed in the fixing sheet 11, an arc-shaped pressing sheet 12 is arranged on one side of the fixing sheet 11, and the shape of the pressing sheet 12 is matched with the appearance structure of the cylindrical mirror 8; the pressing sheet 12 is provided with a light outlet 13, and laser beams form laser lines through the light outlet 13 after passing through the cylindrical mirror 8; the lower edge of the pressing sheet 12 is provided with a spacer 15, and the elastic positioning sheet can be made of stainless steel and the like.
As shown in fig. 3 and 4, the elastic positioning sheet has the function that the structures of the arc-shaped pressing sheet 12 and the light outlet 13 can eliminate stray light, thread interference lines and the like on two sides of the cylindrical mirror 8 in the line forming process, so that the line forming quality is better; the isolating sheet 15 at the lower edge of the pressing sheet 12 enables the light-emitting slot 9 and the cylindrical mirror 8 to be isolated, so that the imaging quality and the spot quality of the cylindrical mirror can be effectively improved; in addition, when the cylindrical mirror 8 is fixed without glue, the cylindrical mirror 8 can be fixed through the pressing sheet 12 on the elastic positioning sheet, so that the debugging process of the cylindrical mirror 8 before use is matched.
For the fixation of the elastic positioning piece, the present embodiment provides four ways:
as shown in fig. 3, the first way is to directly dispense glue in the fixing holes 14 of the elastic positioning sheet, so that the elastic positioning sheet is fixed with the front end face 2 of the housing.
In the second mode, the elastic positioning sheet is not provided with a fixing hole, and can be dispensed on the front end face 2 of the shell 1, so that the elastic positioning sheet is fixed with the front end face 2 of the shell.
In the third mode, the elastic positioning sheet is not provided with a fixing hole, and the elastic positioning sheet can be fixed with the front end surface 2 of the shell by resistance welding or laser welding.
A fourth way is to fasten the elastic anchoring tab to the front end face 2 by means of a fixing screw 16 passing through the fixing hole 14, as shown in fig. 5.
Example 2
For some customers, there is a need to debug the cylindrical mirror 8 before use, and for this reason, a debugging mechanism of the cylindrical mirror 8 is provided in this embodiment: the radial both sides of casing 1 front end symmetry seted up with the debugging hole 18 of mounting groove 3 intercommunication, be equipped with debugging screw 17 in the debugging hole 18.
As shown in fig. 6 to 8, the cylindrical mirror 8 of the present embodiment is not fixed by glue, and the elastic positioning piece is fixed by the fixing screw 16; the debugging screw 17 is rotated through a tool, so that the debugging screw 17 pushes the cylindrical mirror 8 to move in the positioning groove 4 to debug the cylindrical mirror 8, and after debugging is finished, glue can be dispensed between the two ends of the cylindrical mirror 8 and the mounting groove 3 for fixing.
Claims (10)
1. A point-line light source comprises a shell (1), wherein a mounting groove (3) is formed in the front end face (2) of the shell (1), a light-emitting groove (9) is formed in the side wall of one side of the mounting groove (3), a mounting cavity is formed from the rear end face of the shell (1) to the inside of the shell (1), a laser collimation point light source (10) is assembled in the mounting cavity, a light-passing hole (6) is formed in the front end of the mounting cavity, and the light-passing hole (6) is communicated with the mounting groove (3) and the light-emitting groove (9); the method is characterized in that:
mounting groove (3) in be located logical unthreaded hole (6) both sides and be formed with constant head tank (4), install cylindrical mirror (8) in constant head tank (4), wherein, the configuration of constant head tank (4) include following two kinds:
i, two unparallel positioning edges (5) are arranged on the upper edges of two sides of each positioning groove (4), and the positioning edges (5) are in point contact with the circumferences of two end surfaces of a cylindrical mirror (8);
II, a positioning edge (5) is arranged at the upper edge of one side of each positioning groove (4), and the positioning edges (5) are in point contact with the circumferences of two end surfaces of the cylindrical mirror (8); the other side of the positioning groove (4) and the side wall of the mounting groove (3) are overlapped to form a positioning surface (20), and the positioning surface (20) is in line contact with the cylindrical surface of the cylindrical mirror (8).
2. The point-line light source according to claim 1, wherein the front end of the housing (1) is provided with an elastic positioning sheet for fixing the cylindrical mirror (8), the elastic positioning sheet comprises a fixing sheet (11), one side of the fixing sheet (11) is provided with an arc-shaped pressing sheet (12), and the pressing sheet (12) is provided with a light outlet (13); a spacer (15) is provided at the lower edge of the pressing sheet (12).
3. The dotted line light source as claimed in claim 2, wherein the fixing plate (11) is provided with a fixing hole (14).
4. The dotted line light source of claim 2, wherein said elastic positioning plate is fixed to the front end face (2) of the housing (1) by means of fixing glue, welding or fixing screws (16) so that said cylindrical mirror (8) is located at the lower part of the pressing plate (12).
5. The dotted line light source as claimed in claim 1, wherein the casing (1) is symmetrically provided with debugging holes (18) at two radial sides of the front end thereof, the debugging holes (18) being communicated with the mounting groove (3), and the debugging screws (17) are mounted in the debugging holes (18).
6. The dotted line light source as claimed in claim 1, wherein for the configuration I and the configuration II, the width of the positioning groove (4) is gradually reduced along the direction of the optical axis far away from the laser collimation point light source (10), and the end with the larger width of the positioning groove (4) is intersected with the through light hole (6).
7. The dotted line light source as claimed in claim 1, wherein, for configuration i, the positioning edges (5) of the upper edges on both sides of the positioning groove (4) are symmetrical to one another.
8. The point-line light source of claim 1, wherein for the configuration I and the configuration II, the positioning groove (4) is a circular arc groove, a trapezoid square groove or other polygonal grooves, the positioning groove (4) and the bottom surface of the mounting groove (3) are intersected to form the positioning edge (5) and the positioning surface (20), and the cylindrical mirror (8) is mounted in point contact with the positioning edge (5) and in line contact with the positioning surface (20).
9. The dotted line light source as claimed in claim 1, wherein the mounting groove (3) is a strip-shaped groove, the mounting groove (3) traverses the front end face (2) of the housing (1) or is located in the front end face (2) and has a pair of side walls parallel to each other, one of the side walls is divided into two sections by the light-emitting groove, and the side wall is discontinuous.
10. The dotted line light source as claimed in claim 1, wherein, for configuration ii, the positioning edge (5) of the positioning slot (4) is inclined to the side wall of the mounting groove (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920764347.1U CN209842191U (en) | 2019-05-24 | 2019-05-24 | Point-line light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920764347.1U CN209842191U (en) | 2019-05-24 | 2019-05-24 | Point-line light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209842191U true CN209842191U (en) | 2019-12-24 |
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ID=68897858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920764347.1U Active CN209842191U (en) | 2019-05-24 | 2019-05-24 | Point-line light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209842191U (en) |
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2019
- 2019-05-24 CN CN201920764347.1U patent/CN209842191U/en active Active
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