CN209820743U - Laser bar photoelectric detection device - Google Patents

Abstract

The application relates to a laser bar photoelectric detection device, which comprises a light receiving device, a negative plate, a limiting device, a positive fixing plate and a probe array. The light receiving device includes an entrance port. The incident port is used for receiving the light emitted by the laser bars. The limiting device is arranged on the negative plate and used for limiting the laser bar, and the light emitting surface of the laser bar is opposite to the incident port. The positive fixing plate is detachably arranged on the negative plate. The probe array is arranged on the anode fixing plate. The probe array comprises a plurality of probes, and the probes are used for being in one-to-one corresponding contact with the anodes of the single tubes. The limiting device limits the placement position of the laser bar, so that the light emitting surface of the laser bar is opposite to the incident port, the position adjusting time of the laser bar is shortened, and the detection efficiency is improved.

Description

Laser bar photoelectric detection device

Technical Field

The application relates to the technical field of detection, in particular to a laser bar photoelectric detection device.

Background

Semiconductor lasers and arrays thereof have been widely used in various fields such as industry, medical treatment, communication, military and the like due to their advantages of small size, light weight, high efficiency, low cost and the like. The laser bars are basic constituent units of the laser array, and can be used independently and further form linear arrays and stacked arrays. The semiconductor laser is packaged with a bar package and a single tube package. The laser bar package is formed by packaging a plurality of laser single tubes with edges side by side.

Before the laser bar leaves a factory, photoelectric detection needs to be carried out on each laser single tube, and how to improve the detection efficiency of the laser bar is a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

In view of this, it is necessary to provide a laser bar photodetection device for solving the problem of how to improve the detection efficiency of the laser bar.

The utility model provides a laser bar photoelectric detection device for carry out photoelectric detection to the laser bar, the laser bar includes a plurality of single tubes of arranging side by side, the single tube includes anodal and negative pole, laser bar photoelectric detection device includes: light receiving device, negative plate, stop device, anodal fixed plate and probe array.

The light receiving device includes an entrance port. The incident port is used for receiving the light emitted by the laser bars. The negative plate is used for contacting with the negative electrode of the single tube. The limiting device is arranged on the negative plate and used for limiting the laser bar, and the light emitting surface of the laser bar is opposite to the incident port. The positive fixing plate is detachably arranged on the negative plate. The probe array is arranged on the anode fixing plate. The probe array comprises a plurality of probes, and the probes are used for being in one-to-one corresponding contact with the anodes of the single tubes.

In one embodiment, the limiting device comprises a first fixture block and a second fixture block which are oppositely arranged at intervals. And a first groove is formed on the surface of the first clamping block, which is close to the second clamping block. And a second groove opposite to the first groove is formed in the surface, close to the first fixture block, of the second fixture block. The laser bar is clamped between the first groove and the second groove.

In one embodiment, the negative plate is provided with a first positioning hole. The positive fixing plate comprises a first positioning column. The first positioning columns and the first positioning holes are arranged in a one-to-one correspondence mode. The first positioning column is inserted into the first positioning hole, so that the positive fixing plate is fixed on the negative plate.

In one embodiment, the negative plate further comprises a bolt stud. The bolt column is arranged on the surface of the negative plate close to the positive fixing plate. And the positive fixing plate is provided with a bolt hole corresponding to the bolt column and used for screwing a bolt into the bolt column after penetrating through the bolt hole.

In one embodiment, a first through hole is formed in the surface of the negative plate covered by the laser bar, and the first through hole is used for being communicated with an adsorption interface of a vacuum device so as to enable the laser bar to be attached to the negative plate through negative pressure.

In one embodiment, the edge of the negative plate close to the laser bar is chamfered.

In one embodiment, the laser bar photoelectric detection device further comprises a guide rail and a guide block. The extending direction of the guide rail is consistent with the light emitting direction of the laser bar. The guide block is fixedly connected with the light receiving device. The guide block drives the light receiving device to move along the guide rail.

In one embodiment, the laser bar photodetection device further comprises: detection device and controlling means. The detection device is electrically connected with the light receiving device and is used for detecting the light emitting power and the light spectrum of the laser bar. The control device is electrically connected with the negative plate and the probes and is used for selectively conducting one of the probes to enable the single tube to be in contact with the probes.

In one embodiment, the detection means comprises power detection means. The power detection device is arranged on the light receiving device and used for detecting the power of the single tube. The control device is electrically connected with the power detection device and used for collecting power signals.

In one embodiment, the detection device further comprises a spectral detection device. The spectrum detection device is electrically connected between the light receiving device and the control device and is used for detecting the spectrum of the single tube and transmitting a spectrum signal to the control device.

The application provides a laser bar photoelectric detection device, including light receiving device, negative plate, stop device, anodal fixed plate and probe array. The light receiving device includes an entrance port. The incident port is used for receiving the light emitted by the laser bars. The limiting device is arranged on the negative plate and used for limiting the laser bar, and the light emitting surface of the laser bar is opposite to the incident port. The positive fixing plate is detachably arranged on the negative plate. The probe array is arranged on the anode fixing plate. The probe array comprises a plurality of probes, and the probes are used for being in one-to-one corresponding contact with the anodes of the single tubes. The limiting device limits the placement position of the laser bar, so that the light emitting surface of the laser bar is opposite to the incident port, the position adjusting time of the laser bar is shortened, and the detection efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of the laser bar provided in another embodiment of the present application;

fig. 2 is a schematic structural diagram of the laser bar photodetection device provided in an embodiment of the present application;

FIG. 3 is an isometric view of a portion of the laser bar photodetection device provided in another embodiment of the present application;

fig. 4 is a schematic structural view of the limiting device provided in an embodiment of the present application;

fig. 5 is a top view of the stop device mounted to the negative plate as provided in an embodiment of the present application;

fig. 6 is a cross-sectional view a-a of the stop device mounted to the negative plate as provided in another embodiment of the present application;

fig. 7 is a schematic structural diagram of the laser bar photodetection device provided in another embodiment of the present application;

fig. 8 is a schematic structural diagram of the laser bar photodetection device provided in another embodiment of the present application.

Reference numerals:

laser bar 100

Single tube 110

Positive electrode 111

Negative electrode 112

Light emitting surface 113

Laser bar photoelectric detection device 20

Light receiving device 310

Entrance port 311

Guide rail 312

Guide block 313

Negative plate 320

First positioning hole 321

Bolt post 322

First through hole 323

Chamfer 324

Limiting device 330

First latch 332

Second latch 333

First groove 334

Second groove 335

Positive electrode fixing plate 340

Probe array 341

Probe 300

First positioning post 343

Bolt hole 344

Bolt 345

Detection device 40

Power detection device 410

Spectrum detection device 420

Control device 50

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and it is therefore not intended to be limited to the embodiments disclosed below.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1, fig. 2 and fig. 3, an embodiment of the present application provides a laser bar photodetection device 10 for photodetection of a laser bar 100. The laser bar 100 comprises a plurality of single tubes 110 arranged side by side, and the single tubes 110 comprise anodes 111 and cathodes 112. The laser bar photoelectric detection device 10 comprises a light receiving device 310, a negative plate 320, a limiting device 330, a positive fixing plate 340 and a probe array 341.

The light receiving device 310 includes an entrance port 311. The entrance port 311 is used for receiving the light emitted by the laser bar 100. The negative plate 320 is for contacting the negative electrode of the single tube 110. The limiting device 330 is disposed on the negative plate 320, and is configured to limit the laser bar 100, so that the light emitting surface 113 of the laser bar 100 is disposed opposite to the incident port 311. The positive electrode fixing plate 340 is detachably disposed on the negative electrode plate 320. The probe array 341 is disposed on the anode fixing plate 340. The probe array 341 includes a plurality of probes 300, and the plurality of probes 300 are configured to be in one-to-one contact with the anodes 111 of the plurality of single tubes 110.

The laser bar photoelectric detection device 10 provided by the application comprises a light receiving device 310, a negative plate 320, a limiting device 330, a positive fixing plate 340 and a probe array 341. The light receiving device 310 includes an entrance port 311. The entrance port 311 is used for receiving the light emitted by the laser bar 100. The limiting device 330 is disposed on the negative plate 320, and is configured to limit the laser bar 100, so that the light emitting surface 113 of the laser bar 100 is disposed opposite to the incident port 311. The positive electrode fixing plate 340 is detachably disposed on the negative electrode plate 320. The probe array 341 is disposed on the anode fixing plate 340. The probe array 341 includes a plurality of probes 300, and the plurality of probes 300 are configured to be in one-to-one contact with the anodes 111 of the plurality of single tubes 110. The limiting device 330 limits the placement position of the laser bar 100, so that the light emitting surface 113 of the laser bar 100 is right opposite to the incident port 311, the position adjustment time of the laser bar 100 is shortened, and the detection efficiency is improved.

In one embodiment, the light receiving device 310 is an integrating sphere, and is used for receiving light and homogenizing the light, so as to increase the detection accuracy. The integrating sphere includes the entrance port 311. The shape of the entrance port 311 is not limited as long as light can be taken into the internal elements of the integrating sphere. In the above embodiment, the shape of the entrance port 311 is circular. The center of the circle is opposite to the center of the laser bar 100, and the receiving range of the integrating sphere is increased.

The negative plate 320 is used for being electrically connected with the negative electrode of the laser bar 100. The negative plate 320 is laid with a conductive metal surface near the surface of the laser bar 100. In one embodiment, the surface of the negative plate 320 is uniformly coated with copper. The negative electrode of the laser bar 100 is in contact with copper for conducting electricity, and the plurality of single tubes 110 share the negative electrode.

The position limiting device 330 is disposed on the surface of the negative plate 320. A plurality of the laser bars 100 are measured sequentially. The light emitting surface 103 of the laser bar 100 emits light, and the emitted light enters the light receiving device 310 through the incident port 311. The position of the laser bar 100 determines the accuracy of the laser photodetection. When the light emitting surface 103 of the laser bar 100 deviates from the incident port 311, the light receiving device 310 cannot detect the laser bar 100.

The probe array 341 is disposed on the anode fixing plate 340. The probe array 341 may be disposed on one surface of the positive electrode fixing plate 340. The probe array 341 may be perpendicular to the surface of the anode fixing plate 340, and may be arranged in parallel to the surface of the anode fixing plate 340. In one embodiment, the probe array 341 vertically passes through the positive electrode fixing plate 340, so that the probe array 341 can be conveniently connected with an external connection terminal, and the probe array 341 can be conveniently replaced or detected.

In one embodiment, the limiting device 330 has a groove, and the laser bar 100 is placed in the groove, so that the position of the laser bar 100 is prevented from being adjusted for multiple times, time is saved, and detection efficiency is improved.

Referring to fig. 4, 5 and 6, in an embodiment, the limiting device 330 includes a first latch 332 and a second latch 333 that are disposed at an interval. The surface of the first latch 332 close to the second latch 333 is provided with a first groove 334. The surface of the second latch 333 close to the first latch 332 is provided with a second groove 335 opposite to the first groove 334. The laser bar 100 is clamped between the first groove 334 and the second groove 335, so that the laser bar 100 can be conveniently taken and placed.

A spacing space is formed between the first groove 334 and the second groove 335. The shape of the opening of the limiting space is the same as the shape of the largest surface of the laser bar 100. The laser bars 100 are directly placed in the limiting space, so that the time for adjusting the positions of the laser bars 100 is shortened, and the detection efficiency is improved.

Referring to fig. 7, in one embodiment, the negative plate 320 is provided with a first positioning hole 321. The positive electrode fixing plate 340 includes a first positioning post 343. The first positioning posts 343 are disposed in one-to-one correspondence with the first positioning holes 321. The first positioning post 343 is inserted into the first positioning hole 321, so that the positive electrode fixing plate 340 is fixed to the negative electrode plate 320.

In the above embodiment, the probe array 341 vertically passes through the positive electrode fixing plate 340. The plurality of probes 300 are in contact with the positive electrode 111 of the single tube 110 and are electrically connected to each other. The first positioning post 343 is inserted into the first positioning hole 321, so that the positive electrode fixing plate 340 is fixed to the negative electrode plate 320. As long as the first positioning column 343 is inserted into the first positioning hole 321, the plurality of probes 300 are in one-to-one contact with the plurality of single tubes 110, so that the time for adjusting the plurality of probes 300 is reduced, and the detection efficiency is improved.

In one embodiment, the negative plate 320 further includes a bolt stud 322. The bolt stud 322 is disposed on the surface of the negative plate 320 close to the positive fixing plate 340. The positive fixing plate 340 is provided with bolt holes 344 corresponding to the bolt posts 322, and bolts 345 are inserted through the bolt holes 344 and screwed into the bolt posts 322.

The bolt 345 passes through the bolt hole 344 and is screwed into the bolt stud 322, so that the negative electrode plate 320 and the positive electrode fixing plate 340 are fixed to each other. By adjusting the tightness of the bolts 345, the force of the one-to-one contact of the plurality of probes 300 with the plurality of single tubes 110 can be adjusted. In one embodiment, the one-to-one corresponding contact force of the plurality of probes 300 to the anodes 111 of the plurality of single tubes 110 is not too strong, so as to protect the anodes 111 of the plurality of single tubes 110.

In one embodiment, a first through hole 323 is formed in the surface of the negative plate 320 covered by the laser bar 100, and the first through hole 323 is used for communicating with an adsorption interface of a vacuum device, so that the laser bar 100 is attached to the negative plate 320 by using negative pressure.

The laser bar 100 is tightly attached to the negative plate 320, so that the probability of shaking of the laser bar 100 is reduced, the one-to-one corresponding contact accuracy of the plurality of probes 300 and the plurality of single tubes 110 is improved, and the detection precision is improved.

In one embodiment, the negative plate 320 is chamfered 324 near the edge of the laser bar 100. The light emitted by the laser bar 100 is scattered light, and the scattering angle of the scattered light is 30 °. The opening range of the chamfer 324 is 45-60 degrees. In one embodiment, the chamfer 324 is a 45 ° chamfer, so that the light emitted from the single tube 110 is completely absorbed into the entrance port 311, and the detection accuracy is improved.

In one embodiment, the laser bar photodetection device 10 further comprises a guide rail 312 and a guide block 313. The extending direction of the guide rail 312 is consistent with the light emitting direction of the laser bar 100. The guide block 313 is fixedly connected to the light receiving device 310. The guide block 313 drives the light receiving device 310 to move along the guide rail 312. In the process of taking and placing the laser bar 100, the light receiving device 310 may be far away from the negative plate 320 along the guide rail 312, so as to protect the light receiving device 310 from being scratched, thereby increasing the accuracy of the operation.

In one embodiment, the laser bar photodetection device 10 further comprises a pushing device. The pushing device is fixedly connected with the guide block 313. The worker pushes the pushing device, and the pushing device drives the guide block 313 to slide along the guide rail 312.

Referring to fig. 8, in one embodiment, the laser bar photoelectric detection device further includes a detection device 40 and a control device 50. The detection device 40 is electrically connected to the light receiving device 310, and is configured to detect the light emitting power and the light spectrum of the laser bar 100. The control device 50 is electrically connected to the negative electrode plate 320 and the plurality of probes 300, and is configured to selectively turn on one of the plurality of probes 300 to enable the single tube 110 in contact with the probe 300.

Said control means 50 comprise digital-to-analog conversion means. The digital-to-analog conversion device comprises a plurality of interfaces. The plurality of interfaces are electrically connected to the plurality of probes 300 in a one-to-one correspondence. The control device 50 may be a CPU, a computer, or a control motherboard.

In one embodiment, the detection means 40 comprises a power detection means 410. The power detection device 410 is disposed on the light receiving device 310, and is configured to detect the power of the single tube 110. The control device 50 is electrically connected to the power detection device 410 for collecting power signals. The power detection device 410 may be a power detector, a detection probe, or a detector.

In one embodiment, the detection device 40 further comprises a spectral detection device 420. The spectrum detection device 420 is electrically connected between the light receiving device 310 and the control device 50, and is configured to detect the spectrum of the single tube 110 and transmit a spectrum signal to the control device 50. The spectral detection device 420 may be a spectrometer.

In one embodiment, the control device 50 is capable of receiving external control to selectively control one of the plurality of probes 300 to sequentially illuminate the plurality of monotubes 110. The light emitted from the single tube 110 enters the light receiving device 310 from the entrance port 311. The light receiving device 310 homogenizes the light. A portion of the processed light is taken into the power probe for measuring the luminous power of the monotube 110. And another part of the processed light enters the spectrometer for spectrum test. The power probe transmits a power signal to the control device 50. The spectrometer delivers the spectral signal to the control device 50.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-described examples merely represent several embodiments of the present application and are not to be construed as limiting the scope of the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The utility model provides a laser bar photoelectric detection device for carry out photoelectric detection to laser bar (100), laser bar (100) include a plurality of single tubes (110) of arranging side by side, single tube (110) include anodal (111) and negative pole (112), characterized in that, laser bar photoelectric detection device includes:

a light receiving device (310) comprising an entrance port (311) for receiving light emitted by the laser bar (100);

a negative electrode plate (320) for contacting with the negative electrode (112) of the single tube (110);

the limiting device (330) is arranged on the negative plate (320) and used for limiting the laser bar (100) and enabling a light emitting surface (113) of the laser bar (100) to be arranged opposite to the incident port (311);

a positive electrode fixing plate (340) detachably provided to the negative electrode plate (320);

the probe array (341) is arranged on the anode fixing plate (340), the probe array (341) comprises a plurality of probes (300), and the probes (300) are used for being in one-to-one corresponding contact with the anodes (111) of the single tubes (110).

2. The laser bar photodetection device according to claim 1, characterized in that the position limiting device (330) comprises:

the laser bar comprises a first fixture block (332) and a second fixture block (333) which are arranged at an interval oppositely, a first groove (334) is formed in the surface, close to the second fixture block (333), of the first fixture block (332), a second groove (335) opposite to the first groove (334) is formed in the surface, close to the first fixture block (332), of the second fixture block (333), and the laser bar (100) is clamped between the first groove (334) and the second groove (335).

3. The laser bar photodetection device according to claim 1, wherein the negative plate (320) is provided with a first positioning hole (321), the positive fixing plate (340) comprises a first positioning post (343), the first positioning post (343) is disposed in one-to-one correspondence with the first positioning hole (321), and the first positioning post (343) is configured to be inserted into the first positioning hole (321) to fix the positive fixing plate (340) to the negative plate (320).

4. The laser batten photoelectric detection device according to claim 1, wherein the negative plate (320) further comprises a bolt column (322), the bolt column (322) is arranged on the surface, close to the positive fixing plate (340), of the negative plate (320), and the positive fixing plate (340) is provided with a bolt hole (344) corresponding to the bolt column (322) for a bolt (345) to pass through the bolt hole (344) and be screwed into the bolt column (322).

5. The laser bar photodetection device according to claim 1, characterized in that the surface of the negative plate (320) covered by the laser bar (100) is provided with a first through hole (323), and the first through hole (323) is used for communicating with an absorption interface of a vacuum device so as to make the laser bar (100) adhere to the negative plate (320) by negative pressure.

6. The laser bar photodetection device according to claim 1, characterized in that the edge of the negative plate (320) near the laser bar (100) is chamfered (324).

7. The laser bar photodetection device according to claim 1, further comprising:

a guide rail (312), wherein the extension direction of the guide rail (312) is consistent with the light emitting direction of the laser bar (100);

and the guide block (313) is fixedly connected with the light receiving device (310), and the guide block (313) drives the light receiving device (310) to move along the guide rail (312).

8. The laser bar photodetection device according to claim 1, characterized in that said laser bar photodetection device further comprises:

the detection device (40) is electrically connected with the light receiving device (310) and is used for detecting the luminous power and the light spectrum of the laser bar (100);

and a control device (50) electrically connected to the negative electrode plate (320) and the plurality of probes (300) and configured to selectively turn on one of the plurality of probes (300) to bring the single tube (110) in contact with the probe (300).

9. The laser bar photodetection device according to claim 8, characterized in that the detection device (40) comprises:

the power detection device (410) is arranged on the light receiving device (310) and used for detecting the power of the single tube (110), and the control device (50) is electrically connected with the power detection device (410) and used for collecting power signals.

10. The laser bar photodetection device according to claim 8, characterized in that the detection device (40) further comprises:

and the spectrum detection device (420) is electrically connected between the light receiving device (310) and the control device (50) and is used for detecting the spectrum of the single tube (110) and transmitting a spectrum signal to the control device (50).