CN112600066B - Laser diode packaging - Google Patents
Laser diode packaging Download PDFInfo
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- CN112600066B CN112600066B CN202011644985.3A CN202011644985A CN112600066B CN 112600066 B CN112600066 B CN 112600066B CN 202011644985 A CN202011644985 A CN 202011644985A CN 112600066 B CN112600066 B CN 112600066B
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- connecting rod
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Abstract
The invention provides a laser diode package which comprises a bearing plate, a laser diode chip, a tube seat and an adjusting assembly, wherein a rotating part is arranged on one side edge of the bearing plate, the laser diode chip is arranged on one side of the bearing plate, the tube seat is provided with a matching part, the matching part is in rotating fit with the rotating part so that the bearing plate can be rotatably arranged on the tube seat around the side edge, the adjusting assembly is arranged on the tube seat and comprises a connecting rod and a driving part, one end of the connecting rod is rotatably connected to one side of the bearing plate opposite to the laser diode chip, the other end of the connecting rod is rotatably connected with the driving part, the driving part is used for driving one end, connected with the driving part, of the connecting rod to move along a first direction, and the first direction is the normal direction of the side surface of the bearing plate so that the bearing plate can rotate around the matching part in an adjusting mode. The optical axis direction of this scheme adjustable laser diode chip improves laser diode production and has the yield.
Description
Technical Field
The invention relates to the technical field of laser diode production, in particular to laser diode packaging.
Background
With the development of the optoelectronic industry, laser diodes are common products, and have been widely used due to their advantages of high power, fast transmission and narrow bandwidth. The laser diode is a component with high precision position requirement, and in the laser diode packaging structure, after the vertical components are jointed, the optical axis of the laser diode is required to emit light upwards in the direction vertical to the carrier plate. However, the conventional laser diode is prone to be deviated from a predetermined track due to the optical axis during production, which causes a problem of yield reduction of the finished product.
Disclosure of Invention
The invention mainly aims to provide a laser diode package, aiming at solving the technical problem that the yield of finished products is reduced because an optical axis of a laser diode is easy to deviate from a preset track during production in the prior art.
To achieve the above object, the present invention provides a laser diode package, comprising:
the bearing plate is provided with a rotating part at one side edge;
the laser diode chip is arranged on one side of the bearing plate;
the tube seat is provided with a matching part which is in rotating fit with the rotating part, so that the bearing plate can be rotatably arranged on the tube seat around the side edge; and the number of the first and second groups,
the adjusting assembly is arranged on the tube seat and comprises a connecting rod and a driving portion, one end of the connecting rod is rotatably connected to one side, opposite to the laser diode chip, of the bearing plate, the other end of the connecting rod is rotatably connected with the driving portion, the driving portion is used for driving one end, connected with the driving portion, of the connecting rod to move along a first direction, the first direction is the normal direction of the side face of the bearing plate, and therefore the bearing plate is enabled to rotate around the matching portion in an adjusting mode.
Optionally, the tube seat is provided with a sliding groove extending along the first direction;
the driving part comprises a sliding block, the sliding block is slidably mounted in the sliding groove and is rotatably connected with one end, close to the tube seat, of the connecting rod.
Optionally, the tube seat extends from the bottom of the sliding groove to a direction away from the sliding block to form a first avoidance groove, and the first avoidance groove is close to an opening in one end of the bearing plate.
Optionally, the slider is provided with a mounting hole extending along the first direction, and an internal thread is arranged in the mounting hole;
the driving part further comprises a screw rod, one end of the screw rod is in threaded connection with the mounting hole, and the other end of the screw rod is located outside the mounting hole.
Optionally, a first through hole is arranged through one side of the chute, which is far away from the bearing plate;
the screw rod is far away from one end of the sliding block is provided with a limiting protrusion, the inner wall of the first through hole is annularly provided with an annular groove, and the limiting protrusion is matched with the annular groove to limit the screw rod to move along the first direction.
Optionally, a second avoiding groove is further formed in the inner wall of the first through hole, the second avoiding groove is formed in the position, away from the first through hole, of one side of the sliding block, extending towards the annular groove to be communicated with the annular groove, and the groove depth of the second avoiding groove is the same as that of the annular groove.
Optionally, one end of the limiting protrusion, which is far away from the screw rod, is provided with an arc-shaped guide surface.
Optionally, the laser diode package further has a locking structure for limiting the lead screw to rotate along the circumferential direction of the rod body, and the locking structure includes a locking bolt, one end of which abuts against the rod body of the lead screw;
a second through hole is formed in the side wall of the first through hole, an internal thread is formed in the second through hole, and one end of the locking bolt penetrates through the second through hole to be abutted to the rod body of the screw rod.
Optionally, one side of the tube seat facing the bearing plate is provided with two detection rods extending along the first direction, one end of each detection rod away from the tube seat is provided with a pressure sensor and abuts against one side of the bearing plate opposite to the laser diode chip to detect the verticality of the bearing plate.
Optionally, the rotating part and the matching part are both made of conductive materials, and the resistivity of the conductive materials is less than 2.83 x 10^ -8 Ω · m.
The laser diode package provided by the invention comprises a bearing plate, a laser diode chip, a tube seat and a regulating component, a rotating part is arranged at one side edge of the bearing plate, the laser diode chip is arranged at one side of the bearing plate, the tube seat is provided with a matching part which is in rotating fit with the rotating part, so that the bearing plate can be rotatably arranged on the tube seat around the side edge, the adjusting component is arranged on the tube seat and comprises a connecting rod and a driving part, one end of the connecting rod is rotatably connected to one side of the bearing plate opposite to the laser diode chip, the other end of the connecting rod is rotatably connected with the driving part, the driving part is used for driving one end of the connecting rod connected with the driving part to move along a first direction, the first direction is a normal direction of the side surface of the bearing plate, so that the bearing plate rotates around the matching part in an adjusting mode. The connecting rod is driven by the driving portion to drive the bearing plate to rotate around the matching portion in an adjusting mode, the bearing plate is positioned after rotating to different angles around the matching portion, and then the optical axis of the laser diode chip is fixed after rotating to a preset track, so that the effect of adjusting the direction of the optical axis of the laser diode chip is achieved, and the yield of finished products is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a laser diode package according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view of the laser diode package of fig. 1 taken along plane a-a;
FIG. 3 is a schematic view of the socket of FIG. 2;
FIG. 4 is an enlarged schematic view at A in FIG. 2;
FIG. 5 is an enlarged schematic view at B of FIG. 2;
FIG. 6 is a schematic structural diagram of another embodiment of a laser diode package according to the present invention;
FIG. 7 is a schematic view of the socket of FIG. 6.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indication is involved in the embodiment of the present invention, the directional indication is only used for explaining the relative positional relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. Also, the technical solutions in the embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.
The laser diode is a component with high precision position requirement, and in the laser diode packaging structure, after the vertical components are jointed, the optical axis of the laser diode is required to emit light upwards in the direction vertical to the carrier plate. The conventional laser diode usually uses the bump and flip chip bonding method to perform the bonding of the vertical device, so the device is easy to shift or tilt, and the surface dimension error of the device also causes the shift or tilt during the assembly, so the optical axis of the laser diode deviates from the predetermined track, which causes the problem of the yield reduction of the finished product.
In view of this, the present invention provides a laser diode package, which aims to solve the technical problem of the prior art that the yield of the finished product is reduced due to the deviation of the optical axis of the laser diode from the predetermined track. Fig. 1 to 7 show an embodiment of a laser diode package according to the present invention.
Referring to fig. 1 to 3, a laser diode package 100 according to the present invention includes a carrier board 1, a laser diode chip, a stem 3 and an adjusting assembly 4, wherein a rotating portion 11 is disposed on one side of the carrier board 1, the laser diode chip is mounted on one side of the carrier board 1, the stem 3 is disposed with a matching portion 31, the matching portion 31 is rotatably matched with the rotating portion 11, so that the carrier board 1 is rotatably mounted on the stem 3 around the side, the adjusting assembly 4 is disposed on the stem 3 and includes a connecting rod 41 and a driving portion 42, one end of the connecting rod 41 is rotatably connected to a side of the carrier board 1 opposite to the laser diode chip 2, the other end of the connecting rod is rotatably connected to the driving portion 42, the driving portion 42 is configured to drive one end of the connecting rod 41 connected to the driving portion 42 to move along a first direction, the first direction is a normal direction of the side surface of the bearing plate 1, so that the bearing plate 1 rotates around the matching part 31. In the scheme, the driving part 42 drives the connecting rod 41 to drive the bearing plate 1 to rotate around the matching part 31 in an adjusting manner, so that the bearing plate 1 rotates around the matching part 31 to different angles and then is positioned, and further, the optical axis of the laser diode chip 2 is fixed after rotating to a preset track, so that the effect of adjusting the optical axis direction of the laser diode chip 2 is achieved, and the yield of finished products is improved.
The form of the driving portion 42 is not limited as long as the connecting rod 41 can be driven to move in the first direction. In this embodiment, referring to fig. 2 and fig. 3, the tube seat 3 is provided with a sliding groove 32 extending along the first direction, the driving portion 42 includes a sliding block 421, and the sliding block 421 is slidably mounted on the sliding groove 32 and is rotatably connected to one end of the connecting rod 41 close to the tube seat 3. The slider 421 moves along the sliding groove 32 to drive the connecting rod 41 to move along the first direction, so that the optical axis direction of the laser diode chip 2 can be adjusted, the structure is simple, and the operation is convenient.
Further, referring to fig. 2, in order to avoid the interference between the connecting rod 41 and the tube seat 3 when the sliding block 421 slides in a direction away from the bearing plate 1, the tube seat 3 is provided with a first avoiding groove 33 extending from the bottom of the sliding groove 32 to the direction away from the sliding block 421, and one end of the first avoiding groove 33 close to the bearing plate 1 is open. Therefore, when the sliding block 421 moves in a direction away from the bearing plate 1, the connecting rod 41 can pass through the first avoiding groove 33, and the influence on adjustment caused by interference with the tube seat 3 is avoided.
Further, referring to fig. 2 and 4, the slider 421 is provided with a mounting hole 421a extending along the first direction, an internal thread is provided in the mounting hole 421a, the driving portion 42 further includes a screw rod 422, one end of the screw rod 422 is screwed to the mounting hole 421a, and the other end is located outside the mounting hole 421 a. Because one end of the screw 422 is screwed with the sliding block 421, when one end of the screw 422, which is located outside the mounting hole 421a, is rotated, the screw 422 is restricted from moving along the first direction, and under the influence of the screw thread, the sliding block 421 moves along the sliding groove 32 to drive the connecting rod 41 to move along the first direction. In addition, fine adjustment of the optical axis direction of the laser diode chip 2 can be realized by providing appropriate internal threads of the lead screw 422 and the mounting hole 421 a.
Further, referring to fig. 4, in order to limit the screw 422 to move along the first direction, a first through hole 36 is formed through one side of the chute 32 away from the bearing plate 1, a limiting protrusion is arranged at one end of the screw 422 away from the sliding block 421, an annular groove 35 is annularly arranged on an inner wall of the first through hole 36, and the limiting protrusion is matched with the annular groove 35 to limit the screw 422 to move along the first direction.
Specifically, referring to fig. 5, a second avoiding groove 34 is further formed in an inner wall of the first through hole 36, the second avoiding groove 34 extends from a side of the first through hole 36 away from the slider 421 to the annular groove 35 to communicate with the annular groove 35, and a groove depth of the second avoiding groove 34 is the same as a groove depth of the annular groove 35. In the assembly lead screw 422 with mounting hole 421a makes earlier spacing arch aligns the second dodges groove 34, in order to incite somebody to action lead screw 422 passes first through-hole 36 extremely spacing arch card is gone into ring channel 35 rotates again lead screw 422 makes lead screw 422 spiro union in mounting hole 421a, thereby reaching the restriction lead screw 422 is followed when first direction removes, can realize lead screw 422's dismantlement is changed.
Specifically, be convenient for spacing protruding card is gone into the second dodges groove 34, and is convenient spacing protruding is in the annular groove 35 internal rotation, spacing protruding one end of keeping away from lead screw 422 is equipped with the arc spigot surface.
Further, referring to fig. 3 and 6, after the optical axis direction of the laser diode chip 2 is adjusted, in order to limit the circumferential rotation of the lead screw 422 along the shaft, the laser diode package 100 further has a locking structure 5 for limiting the circumferential rotation of the lead screw 422 along the shaft, the locking structure 5 includes a locking bolt, one end of the locking bolt abuts against the shaft of the lead screw 422, a second through hole 37 is formed in a side wall of the first through hole 36, an internal thread is formed in the second through hole 37, and one end of the locking bolt passes through the second through hole 37 to abut against the shaft of the lead screw 422. Therefore, when the optical axis direction of the laser diode chip 2 is adjusted, the locking bolt is not in contact with the rod body of the lead screw 422, after the adjustment is completed, the locking bolt is installed in the second through hole 37, one end of the locking bolt is abutted to the rod body of the lead screw 422, so that the lead screw 422 is limited to rotate along the circumferential direction of the rod body, and the deviation of the optical axis direction of the laser diode chip 2 caused by accidental rotation after the adjustment of the lead screw 422 is completed is avoided.
Furthermore, one side of the tube seat 3 facing the bearing plate 1 is provided with two detection rods 6 extending along the first direction, one end of each detection rod 6 away from the tube seat 3 is provided with a pressure sensor, and the detection rods abut against one side of the bearing plate 1 opposite to the laser diode chip 2 to detect the verticality of the bearing plate 1. Preferably, referring to fig. 6 and 7, the two detecting rods 6 are vertically arranged, one end of each detecting rod 6 abuts against one side of the bearing plate 1, and the pressure sensor is used for judging the pressure of the bearing plate 1 on the two detecting rods 6 so as to detect the verticality of the bearing plate 1.
Further, the rotating portion 11 and the mating portion 31 are both made of conductive materials, and the resistivity of the conductive materials is less than 2.83 × 10^ -8 Ω · m, specifically, the conductive materials can be, but not limited to, aluminum and copper materials, so that the rotating portion 11 and the mating portion become a part of a connection circuit, and the structure is simplified.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents made by the contents of the present specification and drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A laser diode package, comprising:
the bearing plate is provided with a rotating part at one side edge;
the laser diode chip is arranged on one side of the bearing plate;
the tube seat is provided with a matching part which is in rotating fit with the rotating part, so that the bearing plate can be rotatably arranged on the tube seat around the side edge; and the number of the first and second groups,
the adjusting assembly is arranged on the tube seat and comprises a connecting rod and a driving part, one end of the connecting rod is rotatably connected to one side of the bearing plate opposite to the laser diode chip, the other end of the connecting rod is rotatably connected with the driving part, the driving part is used for driving one end of the connecting rod connected with the driving part to move along a first direction, and the first direction is the normal direction of the side surface of the bearing plate, so that the bearing plate can rotate around the matching part in an adjusting manner;
the tube seat is provided with a sliding chute extending along the first direction;
the driving part comprises a sliding block, the sliding block is slidably mounted in the sliding groove and is rotatably connected with one end, close to the tube seat, of the connecting rod.
2. The laser diode package of claim 1, wherein the socket has a first avoiding groove extending from the bottom of the sliding groove to a direction away from the slider, and the first avoiding groove is open at an end close to the carrier board.
3. The laser diode package of claim 1, wherein the slider defines a mounting hole extending along the first direction, the mounting hole defining an internal thread therein;
the driving part further comprises a screw rod, one end of the screw rod is in threaded connection with the mounting hole, and the other end of the screw rod is located outside the mounting hole.
4. The laser diode package of claim 3, wherein a first through hole is formed through the chute on a side away from the carrier board;
the screw rod is far away from one end of the sliding block is provided with a limiting protrusion, the inner wall of the first through hole is annularly provided with an annular groove, and the limiting protrusion is matched with the annular groove to limit the screw rod to move along the first direction.
5. The laser diode package as claimed in claim 4, wherein a second avoiding groove is further formed on an inner wall of the first through hole, the second avoiding groove extends from a side of the first through hole away from the slider to the annular groove to communicate with the annular groove, and a groove depth of the second avoiding groove is the same as a groove depth of the annular groove.
6. The laser diode package of claim 5, wherein an end of the limiting protrusion away from the lead screw is provided with an arc-shaped guide surface.
7. The laser diode package of claim 4, wherein the laser diode package further comprises a locking structure for limiting the lead screw to rotate along the circumferential direction of the shaft, the locking structure comprises a locking bolt, and one end of the locking bolt abuts against the shaft of the lead screw;
a second through hole is formed in the side wall of the first through hole, an internal thread is formed in the second through hole, and one end of the locking bolt penetrates through the second through hole to be abutted to the rod body of the screw rod.
8. The laser diode package of claim 1, wherein the side of the socket facing the carrier board is provided with two detection rods extending along the first direction, and one end of each detection rod away from the socket is provided with a pressure sensor and abuts against the side of the carrier board opposite to the laser diode chip for detecting the verticality of the carrier board.
9. The laser diode package of claim 1, wherein the rotation portion and the mating portion are both conductive materials, and wherein the resistivity of the conductive materials is less than 2.83 x 10-8 Ω -m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011644985.3A CN112600066B (en) | 2020-12-31 | 2020-12-31 | Laser diode packaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011644985.3A CN112600066B (en) | 2020-12-31 | 2020-12-31 | Laser diode packaging |
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| Publication Number | Publication Date |
|---|---|
| CN112600066A CN112600066A (en) | 2021-04-02 |
| CN112600066B true CN112600066B (en) | 2022-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011644985.3A Active CN112600066B (en) | 2020-12-31 | 2020-12-31 | Laser diode packaging |
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| JP2010123597A (en) * | 2008-11-17 | 2010-06-03 | Konica Minolta Business Technologies Inc | Laser optical apparatus |
| CN202333435U (en) * | 2011-11-23 | 2012-07-11 | 青岛海信宽带多媒体技术有限公司 | Laser device |
| CN105514766A (en) * | 2016-02-29 | 2016-04-20 | 北京仁光科技有限公司 | Large-angle uniform line laser sector modulation device |
| CN109460155A (en) * | 2018-11-01 | 2019-03-12 | 合肥享淘科技有限公司 | A kind of computer keyboard of adjustable tilt angle |
| CN110401092A (en) * | 2019-08-27 | 2019-11-01 | 易思维（杭州）科技有限公司 | A kind of laser angle regulating device |
| CN110535026A (en) * | 2018-05-24 | 2019-12-03 | 南茂科技股份有限公司 | Laser diode package structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8091876B2 (en) * | 2008-07-10 | 2012-01-10 | Applied Optoelectronics, Inc. | Fixture for securing optoelectronic packages for wire and/or component bonding |
| CN102135710A (en) * | 2010-01-27 | 2011-07-27 | 深圳市科创数字显示技术有限公司 | Optical adjusting device for micro-projector |
| CN107132637A (en) * | 2017-07-17 | 2017-09-05 | 盐城市骏泰交通设施有限公司 | A kind of road corner convex mirror that can be adjusted |
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2020
- 2020-12-31 CN CN202011644985.3A patent/CN112600066B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010123597A (en) * | 2008-11-17 | 2010-06-03 | Konica Minolta Business Technologies Inc | Laser optical apparatus |
| CN202333435U (en) * | 2011-11-23 | 2012-07-11 | 青岛海信宽带多媒体技术有限公司 | Laser device |
| CN105514766A (en) * | 2016-02-29 | 2016-04-20 | 北京仁光科技有限公司 | Large-angle uniform line laser sector modulation device |
| CN110535026A (en) * | 2018-05-24 | 2019-12-03 | 南茂科技股份有限公司 | Laser diode package structure |
| CN109460155A (en) * | 2018-11-01 | 2019-03-12 | 合肥享淘科技有限公司 | A kind of computer keyboard of adjustable tilt angle |
| CN110401092A (en) * | 2019-08-27 | 2019-11-01 | 易思维（杭州）科技有限公司 | A kind of laser angle regulating device |
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| CN112600066A (en) | 2021-04-02 |
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