Edge emitting laser cavity surface batch detection jig

Abstract

The utility model discloses a batch detection jig for cavity surfaces of edge-emitting lasers. The batch detection jig comprises a support frame; the at least three reflectors are sequentially embedded in the supporting frame, so that the parallel incident light is emitted upwards after the angle is changed; and the at least three fixing devices are fixed on the support frame, are in one-to-one correspondence with the reflectors, and are used for fixing an edge-emitting laser and enabling reflected light of a cavity surface of the edge-emitting laser to penetrate through the reflectors to be emitted upwards. According to the utility model, the reflecting prism can be utilized to carry out appearance detection on the cavity surface of the edge-emitting laser in the loading tray. Pollution or damage risks caused in the process that the laser needs to be taken and placed in a traditional detection mode are overcome, and efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of edge-emitting laser cavity surface inspection technology, specifically, to a jig for batch inspection of edge-emitting laser cavity surfaces. Background Technology

[0002] Edge-emitting lasers are often used in fields such as 3D vision, laser cutting, and medical applications due to their high power density.

[0003] Due to the characteristics of edge-emitting lasers, their active region is located on the side, making them susceptible to contamination and difficult to detect during the production process.

[0004] Commonly used detection methods include:

[0005] (1) Use a clamp to fix the laser upright and inspect the cavity surface through the microscope above.

[0006] (2) The cavity surface is detected by the microscope above using the reflection of the prism.

[0007] (3) The cavity surface is directly inspected using a horizontal microscope.

[0008] All of these testing methods require clamping the laser, which can cause some damage to the chip. The testing fixture in this patent allows the laser to be tested inside the loading tray, avoiding damage caused by the pick-and-place process.

[0009] The above background information is provided only to aid in understanding the inventive concept and technical solution of this utility model. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above information was disclosed on the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Utility Model Content

[0010] To address this, this invention proposes a batch inspection fixture for the cavity surfaces of edge-emitting lasers. This fixture utilizes a reflecting prism to perform batch appearance inspections on the cavity surfaces of edge-emitting lasers within a loading tray, overcoming the risks of contamination or damage caused during the handling of lasers in traditional inspection methods, and improving efficiency.

[0011] This utility model provides a batch inspection fixture for the cavity surface of a side-emitting laser, characterized in that it includes:

[0012] Support frame;

[0013] At least three reflectors are sequentially embedded in the support frame so that parallel incident light rays change angle and exit upwards;

[0014] At least three fixing devices are fixed on the support frame and correspond to the mirrors respectively, and are used for fixing the edge emitting laser and making the reflected light of the cavity surface of the edge emitting laser pass through the mirrors and be emitted upward.

[0015] Optionally, the edge emitting laser cavity surface batch detection jig has the fixing device comprising a clamping part, which can be adaptively clamped and fixed according to edge emitting lasers of different sizes.

[0016] Optionally, the edge emitting laser cavity surface batch detection jig has the fixing device further comprising an adjusting part.

[0017] The adjusting part comprises a horizontal adjusting device and a vertical adjusting device, the horizontal adjusting device is used for adjusting the position of the edge emitting laser in the horizontal direction, and the vertical adjusting device is used for adjusting the position of the edge emitting laser in the vertical direction.

[0018] Optionally, the edge emitting laser cavity surface batch detection jig has the position of the fixing device on the support frame being adjustable.

[0019] Optionally, the edge emitting laser cavity surface batch detection jig has the support frame being provided with a guide rail, and the fixing device is slidably connected with the guide rail through a sliding block.

[0020] Optionally, the edge emitting laser cavity surface batch detection jig further comprises an angle adjusting mechanism, which is used for fine tuning the pitch angle and / or the yaw angle of the mirror.

[0021] Optionally, the edge emitting laser cavity surface batch detection jig has the support frame being provided with a plurality of mounting holes, and the mirror is fixed on the support frame through the mounting holes.

[0022] Optionally, the edge emitting laser cavity surface batch detection jig has the support frame being further provided with a positioning mark, which is used for positioning the edge emitting laser during installation, so as to ensure that the reflected light of the cavity surface can accurately pass through the corresponding mirror.

[0023] Optionally, the edge emitting laser cavity surface batch detection jig has the support frame being of an integrated structure design.

[0024] Optionally, the edge emitting laser cavity surface batch detection jig further comprises a light source device, which is arranged on one side of the support frame and is used for providing parallel incident light to the mirror.

[0025] Compared with the prior art, the utility model has the beneficial effects as follows:

[0026] The utility model discloses a mirror is utilized to the appearance detection of the edge emission laser cavity surface in the loading tray, does not need to take and put the laser COS from the loading tray in the detection process, reduces the damage risk, overcomes the pollution or breakage risk caused in the process of taking and putting the laser of traditional detection mode, and simplifies the detection procedure, improves the detection efficiency.

[0027] The utility model discloses at least three mirrors and corresponding fixing device are set up, can detect the cavity of multiple edge emission lasers simultaneously, greatly improve the detection efficiency, and be suitable for the quick detection demand in batch production.

[0028] The mirror is embedded on the support frame in the utility model, can change the angle of parallel incident light and emit upwards, makes the reflected light of the edge emission laser cavity surface emit upwards through the mirror, and this design guarantees the accurate transmission and reflection of detection light, and is favorable to improve the accuracy and stability of detection.

[0029] The fixing device corresponds to the mirror one to one in the utility model, can accurately fix the edge emission laser, makes the reflected light of the laser cavity surface according to the designed light path propagation, is convenient for accurate detection to the cavity, reduces the detection error caused by the laser fixed not firm or position deviation.

[0030] The overall structure is composed of the support frame, mirror and fixing device in the utility model, and the structure is relatively simple, easy to manufacture and assemble, and the compact design is also convenient for use in different detection environments, has good flexibility and adaptability. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only the embodiments of the utility model, and for the ordinary skilled in the art, other drawings can be obtained according to the provided drawings without paying the creative labor.

[0032] Figure 1 It is the cross section structure schematic view of the edge emission laser cavity batch detection fixture in the embodiment of the utility model;

[0033] Figure 2 It is the plan view of the edge emission laser cavity batch detection fixture in the embodiment of the utility model;

[0034] Figure 3 It is a schematic view of the edge emitting laser of the edge emitting laser cavity surface batch detection fixture device in the embodiment of the utility model.

[0035] 1-support frame;

[0036] 2-mirror;

[0037] 3-edge emitting laser;

[0038] 4-fixing device; DETAILED DESCRIPTION

[0039] The utility model will be described in detail below in combination with specific embodiments. The following embodiments will help the person skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that, for those skilled in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made. These all belong to the protection scope of the utility model.

[0040] The terms "first", "second", "third", "fourth" and the like (if any) in the description and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the utility model described herein, for example, can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to the clearly listed steps or units, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0041] The utility model embodiment provides a kind of edge emitting laser cavity surface batch detection fixture, to solve the problems in prior art.

[0042] The technical scheme of the utility model and how the technical scheme of the present application solves the above technical problems will be described in detail below with specific embodiments. The following several specific embodiments can be combined, and the same or similar concepts or processes can not be described again in some embodiments. The embodiments of the utility model will be described below with reference to the drawings.

[0043] As Figure 1 , Figure 2 and Figure 3 Indicated, the utility model embodiment includes:

[0044] support frame 1;

[0045] at least three mirrors 2, which are sequentially embedded on the support frame, so that the parallel incident light changes angle and is emitted upward;

[0046] at least three fixing devices 4, which are fixed on the support frame and correspond to the mirrors one by one, for fixing the edge-emitting laser 3 and making the reflected light of the cavity surface of the edge-emitting laser pass through the mirrors and be emitted upward.

[0047] Specifically, the support frame serves as the basic support structure of the entire detection jig, providing a platform for the installation and fixation of other components, ensuring that the relative positional relationship of the components remains stable during operation, thereby guaranteeing the accuracy and consistency of the detection process.

[0048] The support frame needs to have sufficient strength and rigidity to withstand the weight of the mirrors, fixing devices, and edge-emitting lasers, and will not deform under external forces during the detection process. Its material is usually metal, such as aluminum alloy, which has good strength and light weight, facilitating operation and movement. In terms of shape design, the layout of the mirrors and fixing devices should be reasonably planned to ensure that the components can work cooperatively after installation and to facilitate the placement and removal of the edge-emitting laser by the operator.

[0049] There are at least three mirrors, which are sequentially embedded on the support frame. This layout is to achieve a specific angle change of the parallel incident light, making it emit upward. Different numbers of mirrors can be combined through different angles to meet the needs of different angle transformations of light, to adapt to different detection scenarios and the characteristics of edge-emitting lasers.

[0050] When parallel light is incident on the mirror surface, according to the law of reflection, the light will be reflected on the mirror surface, and the angle of the reflected light is determined by the angle of the mirror. These mirrors are precisely installed and adjusted so that the incident light can be reflected in the predetermined direction upward after reflection. The surface of the mirror is usually polished to high precision to reduce the loss and scattering of light during reflection, ensuring the intensity and quality of the reflected light, thereby providing a clear and stable light path for the subsequent detection of the cavity surface reflection of the edge-emitting laser.

[0051] The mirror needs to have high reflectivity to maximize the reflection of incident light, and the reflectivity should be above 90% or even higher to ensure that there is enough intensity of light emitted upward for detection. At the same time, the optical flatness of the mirror should be high, with a surface flatness controlled within 5 microns to avoid interference with the propagation direction of the light and affect the accuracy of the detection results.

[0052] The fixing device is fixed on the support frame and corresponds to the mirror one by one. This correspondence is to ensure that the light reflected by each edge-emitting laser cavity can accurately pass through the corresponding mirror and be emitted upward, realizing the simultaneous detection of multiple edge-emitting laser cavities and improving the detection efficiency.

[0053] The fixing device is used to fix the edge-emitting laser to keep its position stable during the detection process, avoiding the influence of vibration or displacement on the emission direction of the cavity reflected light, and thus affecting the detection results. The fixing device needs to have a certain clamping force to firmly fix the edge-emitting laser, but it cannot damage the laser.

[0054] The structure design of the fixing device needs to be customized according to the size and shape of the edge-emitting laser to achieve accurate positioning and fixing. For example, elastic clamping jaws or magnetic fixing can be used. Elastic clamping jaws can adapt to different sizes of edge-emitting lasers through their elastic deformation, and will not cause hard scratches on the surface of the laser during clamping. Magnetic fixing uses the attractive force of magnetic materials to fix the edge-emitting laser in a specified position, which is simple to operate and can quickly realize the installation and disassembly of the laser, improving the detection efficiency. At the same time, when the fixing device is installed on the support frame, it needs to ensure its position accuracy to ensure that the cavity reflected light of the edge-emitting laser can accurately align with the corresponding mirror after installation.

[0055] In some embodiments, the fixing device includes a clamping part that can adaptively clamp and fix different sizes of the edge-emitting laser.

[0056] In the batch detection jig of the edge-emitting laser cavity, the clamping part in the fixing device plays a key role. Its unique design aims to adaptively clamp and fix different sizes of the edge-emitting laser, greatly improving the versatility and practicality of the jig.

[0057] The clamping part adopts an adjustable structure, the core of which is to have components that can flexibly change their shape or position. These components cooperate with each other to form an elastic or adjustable space that can adapt to multiple sizes. For example, by using elastic material to make clamping arms, or using clamping jaws with threaded adjustment mechanisms, etc. When facing different sizes of edge-emitting lasers, the clamping part can automatically or through manual fine-tuning change its clamping range according to the profile and size of the laser, so as to tightly fix the laser in the correct position.

[0058] When the edge-emitting laser is placed on the fixing device, the clamping part will first contact the laser. If it is a clamping part of the elastic clamping arm type, the clamping arm will deform according to the contour of the laser at the moment of contact with the laser by virtue of its own elasticity, and then tightly wrap the laser, providing stable clamping force. If the clamping part is a jaw type clamping part with a screw adjustment mechanism, the operator can accurately adjust the distance between the jaws by rotating the screw until the jaws can firmly hold edge-emitting lasers of different sizes. Regardless of the working mode, the clamping part can ensure that the edge-emitting laser does not deviate from the predetermined position due to vibration, displacement and other factors during detection, ensuring that the direction of the cavity surface reflected light is always stable, providing reliable protection for accurate detection.

[0059] The clamping part design of this adaptive clamping fixation has many significant advantages. On the one hand, it greatly improves the application range of the detection fixture. Different manufacturers produce edge-emitting lasers, or the same manufacturer produces different models, and their sizes often differ. With this adaptive clamping part, a set of fixtures can meet the detection needs of edge-emitting lasers of various sizes, eliminating the need to customize a fixing device for each size of laser, reducing production costs and equipment management difficulty. On the other hand, it ensures the accuracy and consistency of detection. Because it can accurately fix lasers of different sizes, the position of each laser during detection can be kept highly consistent, avoiding detection errors caused by unstable fixation or position deviation, improving the credibility and reliability of the detection results.

[0060] In some embodiments, the fixing device further comprises an adjusting part;

[0061] The adjusting part comprises a horizontal adjusting device and a vertical adjusting device, the horizontal adjusting device being used to adjust the position of the edge-emitting laser in the horizontal direction, and the vertical adjusting device being used to adjust the position of the edge-emitting laser in the vertical direction.

[0062] In the fixing device of the edge-emitting laser cavity surface batch detection fixture, the adjusting part is a very important component, which contains horizontal adjusting device and vertical adjusting device, and provides strong support for the accurate positioning of the edge-emitting laser.

[0063] Horizontal adjustment device is usually based on the principle of mechanical transmission to achieve the position adjustment of edge emitting laser in horizontal direction. It is common to use screw nut mechanism, motor drives the screw rod to rotate, and the nut drives the platform connected with it to move linearly in horizontal direction. By controlling the forward and reverse rotation and the number of rotations of the motor, the moving distance of the nut can be accurately controlled, so as to accurately adjust the position of the edge emitting laser in the horizontal plane. In addition, gear and rack transmission and other ways can also be used, the motor drives the gear to rotate, the gear meshes with the rack, and then pushes the laser installation platform to move horizontally.

[0064] The operator can control the operation of the motor through the buttons or knobs on the external control panel. For example, pressing the "move left" button, the motor reverses, the screw rod drives the nut to move left, and the laser adjusts the position left; by rotating the adjustment knob, the pulse input frequency of the motor is changed, and then the accurate control of the horizontal movement speed and distance of the laser is realized, so that the operator can accurately position the edge emitting laser to the required horizontal position according to the detection requirements.

[0065] In the detection process, different detection items may have specific requirements for the position of the edge emitting laser in the horizontal direction. For example, when performing accurate alignment detection of cavity surface reflected light and mirror, the position of the laser needs to be fine adjusted by the horizontal adjustment device to ensure that the reflected light can accurately pass through the mirror and be emitted upward, so as to improve the accuracy of the detection result. At the same time, when detecting different models or batches of edge emitting lasers, due to the possible slight differences in their internal structure or cavity surface position, the horizontal adjustment device can help the operator to quickly adjust the laser to the appropriate horizontal detection position, and improve the detection efficiency.

[0066] The vertical adjustment device also uses various mechanical structures to achieve the position change of the edge emitting laser in the vertical direction. Commonly used is the electric lifting platform, which drives the screw rod or chain inside through the motor, and drives the platform carrying the edge emitting laser to move up and down along the vertical guide rail. The pitch of the screw rod and the control accuracy of the motor determine the vertical adjustment accuracy. In addition, the lifting mechanism driven by hydraulic or pneumatic pressure can also be used for vertical adjustment, and by controlling the pressure and flow of hydraulic oil or compressed air, the smooth lifting of the platform is realized.

[0067] The operator can input specific vertical displacement value on the control interface of the detection equipment, and the equipment control system controls the motor or hydraulic, pneumatic system to drive the platform to rise or fall to the specified height according to the input instruction. The lifting speed and direction of the vertical adjustment device can also be manually controlled by operating the control lever, and the position change of the laser can be observed in real time until the ideal vertical detection position is reached.

[0068] The vertical adjustment device is crucial for ensuring that the facet of the edge emitting laser and the detection light path are accurately matched in the vertical direction. In some high-precision detection scenarios, even a slight deviation in the vertical direction between the facet and the detection light can cause a large error in the detection result. Through the vertical adjustment device, the vertical height of the laser can be accurately adjusted, enabling the facet reflected light to be optimally coupled with the optical system of the mirror and subsequent detection equipment in the vertical direction, ensuring the accuracy and stability of the detection process. At the same time, when detecting different specifications of edge emitting lasers in batches, the vertical adjustment device can quickly adapt to the height differences of different lasers, improving the versatility and detection efficiency of the detection fixture.

[0069] In some embodiments, the position of the fixing device on the support frame is adjustable.

[0070] The position adjustment of the fixing device on the support frame is usually achieved by a structure of sliding rail and sliding block. The support frame is installed with horizontal and vertical sliding rails, and the fixing device is connected to the sliding rails through the sliding block. The sliding block can smoothly slide along the sliding rail, thereby driving the fixing device to change its position horizontally or vertically on the support frame. In order to achieve precise adjustment, the sliding rail is often marked with scale markings, and the operator can accurately control the movement distance of the fixing device according to the scale markings. In addition, a locking mechanism can also be provided, which fixes the sliding block and the sliding rail after the fixing device is moved to the appropriate position, preventing the fixing device from shifting during the detection process. For example, using a bolt and nut assembly, align the threaded hole on the sliding block with the corresponding positioning hole on the sliding rail, and then tighten the bolt to lock the position of the fixing device.

[0071] This position-adjustable feature has important functions in many aspects. First, when detecting different models or specifications of edge emitting lasers, due to differences in their size and facet position, the position of the fixing device on the support frame can be adjusted to quickly adapt to the installation requirements of different lasers. For example, for larger edge emitting lasers, the fixing device can be adjusted outward on the support frame to provide sufficient installation space. For lasers with special facet positions, the position of the fixing device can be precisely adjusted to ensure that the reflected light from the laser facet can accurately align with the mirror. Second, during the detection process, if the relative position between the detection light path and the laser facet is found to be deviated, the position of the fixing device can be adjusted at any time to ensure the accuracy and stability of the detection process. For example, when the reflected light cannot completely pass through the mirror and exit upwards, the horizontal or vertical position of the fixing device on the support frame can be adjusted to correct the positional deviation of the laser, so that the light path returns to normal.

[0072] The adjustable position of the fixing device on the support frame significantly improves the overall performance of the detection jig. On the one hand, it improves the versatility of the detection jig, allowing a single detection jig to adapt to the detection of a wider variety of edge-emitting lasers, reducing the cost of purchasing separate detection equipment for different lasers. On the other hand, it enhances the operability and accuracy of the detection process, allowing operators to adjust the position of the fixing device flexibly according to actual detection needs, ensuring that each edge-emitting laser is in the optimal detection position, thereby improving the reliability and consistency of the detection results and enhancing detection efficiency and quality.

[0073] In some embodiments, the support frame is provided with a guide rail, and the fixing device is connected with the guide rail through a sliding block.

[0074] As an important component of this structure, the guide rail is arranged horizontally and vertically on the support frame. Its manufacturing process is extremely meticulous, using high-precision machining techniques to ensure that the surface has extremely high flatness and straightness. This high-precision surface characteristic is crucial, as it provides a stable and reliable path for the sliding of the fixing device, like a precise track. The guide rail is usually made of wear-resistant, high-strength metal materials such as high-quality alloy steel. Such materials not only can withstand the weight of the fixing device and the edge-emitting laser, but also can resist wear and tear during long-term use, ensuring the accuracy and service life of the guide rail. The shape of the guide rail is also carefully designed, generally in the form of a groove or a boss, which closely fits the mating part of the sliding block, guiding the sliding direction of the sliding block and preventing it from moving sideways to some extent, ensuring that the fixing device always moves smoothly along the predetermined track.

[0075] The sliding block is equipped with high-precision balls or rollers inside, which are the core components of low-friction sliding. When the fixing device is pushed by external force, the balls or rollers roll on the surface of the guide rail, converting traditional sliding friction into rolling friction, greatly reducing frictional resistance. This allows operators to easily move the fixing device along the guide rail by applying a small external force. The sliding block is made of strong and lightweight materials such as aluminum alloy, which can ensure sufficient strength to bear the weight of the fixing device and the laser while minimizing its own weight, improving the motion flexibility of the overall structure. The connection part of the sliding block and the fixing device is specially designed to ensure that they are tightly connected and do not loosen or displace during the movement of the fixing device, ensuring the stability of the entire detection process.

[0076] The cooperation mode of the guide rail and the sliding block is simple and efficient. The sliding block is tightly embedded in the groove of the guide rail or installed around the boss, so that smooth relative sliding between the two can be realized, and the precise positional relationship can be maintained. When the operator needs to adjust the position of the fixing device, only external force needs to be applied to the fixing device, and the sliding block will drive the fixing device to slide along the guide rail in the horizontal or vertical direction. The clear scale mark on the guide rail provides the operator with a precise position reference, enabling accurate control of the movement distance of the fixing device, meeting the precise adjustment of the position of the fixing device for different detection requirements. When the fixing device is moved to the appropriate position, the sliding block and the guide rail are fixed by the matching locking mechanism (such as the bolt and nut assembly). This locking method is reliable and easy to operate, which can effectively prevent the displacement of the fixing device during detection due to vibration or other external force interference, ensuring that the edge emitting laser always remains in a stable position during detection, and ensuring the accuracy and stability of the detection light path.

[0077] The sliding connection structure of the guide rail and the sliding block on the support frame provides a solid guarantee for the flexible and precise position adjustment of the fixing device on the support frame through the careful design of the guide rail and the sliding block structure and the efficient cooperation mode, and plays an indispensable role in improving the performance of the edge emitting laser cavity surface batch detection fixture.

[0078] In some embodiments, an angle adjustment mechanism is also included for fine-tuning the pitch angle and / or yaw angle of the mirror. The angle adjustment mechanism of the edge emitting laser cavity surface batch detection fixture is described

[0079] In the edge emitting laser cavity surface batch detection fixture, the angle adjustment mechanism plays a crucial role, and its main function is to finely adjust the pitch angle and / or yaw angle of the mirror, which is indispensable for ensuring the accuracy of the light path during detection and the reliability of the detection results.

[0080] In practical applications, the angle of the cavity surface of the edge emitting laser may vary due to long-term use or various factors, affecting the accuracy of the detection results. Therefore, a mechanism that can accurately fine-tune the angle of the mirror is needed to compensate for these potential changes in light angle, ensuring that the detection fixture can adapt to the detection needs of different lasers.

[0081] The angle adjustment mechanism is typically composed of several key components. First is the precision rotary shaft, which provides the rotation center for the mirror angle adjustment, ensuring the stability and accuracy of the mirror during rotation. The rotary shaft is supported by high-precision bearings to reduce friction and wobble during rotation. Second is the adjustment screw, which is the core component for precise angle adjustment. The adjustment screw is connected to the mirror bracket through a threaded connection. When the screw is rotated, the bracket moves axially along the screw due to the threaded transmission, causing the mirror to rotate around the rotary shaft, changing the pitch angle or yaw angle. In addition, the angle scale dial is an important part of the mechanism, installed on the rotary shaft or closely related parts, with precise angle scales for intuitive angle adjustment reference for operators.

[0082] When the mirror angle needs to be adjusted, the operator rotates the adjustment screw to start the entire adjustment process. For example, to increase the pitch angle of the mirror, the operator rotates the adjustment screw clockwise. The rotation of the screw causes the bracket to move upwards, which in turn causes the mirror to rotate upwards around the rotary shaft, increasing the pitch angle. Conversely, counterclockwise rotation of the adjustment screw will decrease the pitch angle. When adjusting the yaw angle, the working principle is similar, except that the direction of movement of the bracket and the plane of rotation of the mirror are different. During the entire adjustment process, the angle scale dial displays the real-time change of the mirror angle, and the operator can accurately adjust the mirror to the required angle according to the actual requirements of the detection light path.

[0083] The design of the angle adjustment mechanism fully considers the convenience of operation. The adjustment screw usually has a large pitch, so that in the initial coarse adjustment, the operator can quickly approach the target angle by rotating a small number of turns. When fine-tuning near the target angle, the screw has high thread accuracy, so even if the operator rotates the screw slowly, the mirror angle can be adjusted slightly and accurately. In addition, the scale on the scale dial is clear and easy to read, and the scale value is marked in an ergonomic design, making it easy for operators to quickly and accurately identify angle changes in different working environments, improving operational efficiency.

[0084] In actual detection process, the role of the angle adjusting mechanism is particularly significant. For example, when detecting a batch of newly produced edge emitting lasers, due to the differences in the angles of the reflected light from the cavity surfaces of different laser individuals, through the angle adjusting mechanism, the operator can individually fine-tune the angle of the reflector for each laser, ensuring that the reflected light of each laser can accurately pass through the reflector and exit upward into the subsequent detection equipment. For another example, when the detection environment temperature changes, the cavity surface of the laser may change the angle of the reflected light due to thermal expansion and contraction, at which time the angle adjusting mechanism can quickly respond by fine-tuning the angle of the reflector to ensure that the detection light path is not affected, maintaining the continuity and accuracy of the detection process.

[0085] In summary, the angle adjusting mechanism, with its ingenious structural design, efficient working mechanism and excellent operation convenience, plays an irreplaceable role in the batch detection jig of the cavity surface of the edge emitting laser, greatly improving the adaptability of the detection jig to different lasers and complex detection environments, and providing strong support for ensuring detection accuracy and reliability.

[0086] In some embodiments, a plurality of mounting holes are provided on the support frame, and the reflector is fixed to the support frame through the mounting holes.

[0087] The primary purpose of providing multiple mounting holes is to achieve stable installation of the reflector on the support frame. The reflector needs to accurately change the angle of the parallel incident light and emit it upward during the detection process, and its position accuracy is crucial. By fixing the reflector to the support frame through the mounting holes, it can be ensured that the reflector will not displace due to vibration, external force, etc. during work, ensuring the stability of the detection light path and thus improving the reliability of the detection results. At the same time, the design of the mounting holes also provides convenience for the installation and removal of the reflector, facilitating operation during equipment maintenance, replacement of the reflector or adjustment of the detection light path.

[0088] The position layout of the mounting holes on the support frame is carefully planned. Their distribution corresponds to the number and arrangement of the reflectors, ensuring that each reflector can be accurately fixed to the appropriate position on the support frame through the corresponding mounting hole. The position design of these mounting holes not only considers the light path relationship between the reflectors to ensure that the reflection path of the light passing through each reflector meets the detection requirements, but also takes into account the structural strength of the support frame to avoid weakening the carrying capacity of the support frame due to excessive or unreasonable positioning of the mounting holes. For example, the mounting holes may be evenly distributed in specific areas of the support frame to ensure that the reflectors can form a regular and effective light path after installation, while at the edges or key stress points of the support frame, the position and number of the mounting holes are calculated mechanically to ensure that the overall structural stability is not affected.

[0089] When installing the mirror, the pre-installed mounting structure (such as bolt holes, buckles, etc.) on the mirror corresponds to the mounting holes on the support frame. By using appropriate connecting pieces (such as bolts, screws, etc.), the mirror is firmly fixed on the support frame. This fixing method can make the mirror and the support frame tightly combined, preventing the light reflection angle from deviating due to shaking or displacement during detection. For example, by using a bolt to pass through the mounting hole of the mirror and the corresponding mounting hole on the support frame, and then tightening the nut, the mirror can be tightly fixed on the support frame, ensuring the stability and accuracy of the mirror during work.

[0090] This way of fixing the mirror through the mounting hole has many advantages. On the one hand, it provides high installation precision. Since the position of the mounting hole has been accurately determined when the support frame is manufactured, as long as the mounting structure of the mirror matches the mounting hole, the position accuracy of the installed mirror can be guaranteed, meeting the strict requirements of the detection light path for the position of the mirror. On the other hand, this method has good versatility. Different specifications or models of mirrors can be easily installed on the support frame as long as their mounting structures are compatible with the mounting holes on the support frame, making it more convenient to replace different types of mirrors when the detection fixture is changed, improving the applicability and flexibility of the detection fixture. In addition, the design of the mounting hole also facilitates the maintenance and upgrading of the detection fixture in the later stage. When it is necessary to replace the damaged mirror or adjust the position of the mirror to optimize the detection light path, it is simple and easy to operate through the mounting hole, which can effectively reduce the maintenance cost and time cost.

[0091] In some embodiments, the support frame is also provided with a positioning mark for positioning the edge emitting laser during installation, ensuring that the cavity surface reflected light can accurately pass through the corresponding mirror.

[0092] In the design of the edge emitting laser cavity batch detection fixture, the positioning mark provided on the support frame is a key element to ensure detection accuracy and efficiency. Its existence aims to assist the edge emitting laser in achieving accurate positioning during installation, ensuring that the laser cavity surface reflected light can accurately and accurately pass through the corresponding mirror, thereby optimizing the entire detection light path and improving the reliability of the detection results.

[0093] The installation position accuracy of the edge emitting laser in the detection fixture directly affects the accuracy of the detection light path. Since different models or batches of edge emitting lasers may have slight differences in size and cavity position, it is difficult to ensure that each laser can be in the ideal detection position only by relying on the experience of the operator. The positioning mark provides a clear installation reference for the operator, enabling the laser to be quickly and accurately installed to the predetermined position, avoiding abnormal light reflection due to installation deviation, thereby ensuring the stability of the detection process and the consistency of the detection results.

[0094] The forms of positioning marks are various, and common ones include engraved marks, printed marks, and physical marks such as protrusions or recesses. Engraved marks are clear and durable lines or symbols formed on the surface of the support frame by laser etching or mechanical processing, which are used to indicate the mounting position of the laser. Printed marks are eye-catching patterns or marks printed on the support frame by using special ink, which are low in cost and easy to make, but may be blurred due to wear and tear during long-term use. Physical marks such as positioning pins and positioning grooves achieve more accurate positioning by cooperating with corresponding structures on the laser, which have the advantages of high positioning accuracy and good stability, but require high processing precision.

[0095] The layout of positioning marks on the support frame is closely related to the positions of the mirrors and the fixing device. They are usually arranged on the periphery of the fixing device or in the area directly corresponding to the mounting position of the laser, so that the operator can clearly see and refer to the marks during the installation of the laser. For example, on the base of the fixing device, along the edge of the laser installation, there may be engraved positioning lines matching the contour of the laser, or there may be positioning grooves corresponding to the specific structure at the bottom of the laser. At the same time, the position of the positioning marks also needs to consider the operating habits and viewing angles of the operator, to ensure that they can be easily and accurately observed in different working environments.

[0096] In the actual installation of edge-emitting lasers, the operator first places the laser on the fixing device, and then fine-tunes the position of the laser according to the positioning marks on the support frame. For example, when using engraved marks, the operator aligns the edge of the laser with the engraved marks, so that the cavity surface of the laser is in the correct orientation. Once the laser is installed in place, the reflected light from its cavity surface can accurately pass through the corresponding mirror and enter the subsequent detection light path. In batch detection, the role of positioning marks is more significant, as they can ensure that each edge-emitting laser maintains a high degree of positional accuracy during installation, greatly improving detection efficiency and accuracy. Moreover, during the detection process, if the laser needs to be temporarily disassembled and reinstalled, the positioning marks can ensure that the laser is still in the correct detection position after reinstallation, avoiding the impact of installation errors on the detection results.

[0097] In summary, the positioning marks on the support frame play a key role in the installation of edge-emitting lasers through clear installation guidance, effectively improving the usability of the detection fixture and the reliability of the detection results, and are an indispensable part of the batch detection fixture for the cavity surface of edge-emitting lasers.

[0098] In some embodiments, the support frame is designed as an integrated structure. The integrated structure design discards the traditional multi-component splicing or combination method, but rather conceives and plans the support frame as a whole. From the design drawing stage, the overall functional requirements of the jig are fully considered, including the installation and layout of the mirror, the fixing device, and the edge-emitting laser, etc. Through comprehensive analysis of mechanical properties, spatial structure and other factors, the optimal shape and size of the support frame are determined to ensure that the installation position and stable support base for each component are provided while meeting the bearing requirements, so that the entire detection jig forms an organic whole.

[0099] The implementation of integrated support frame design relies on advanced processing technology. Common processing methods include precision casting and numerical control machining. Precision casting technology can cast metal materials into a near-final shape blank at one time, reducing the subsequent processing allowance while ensuring the uniformity and integrity of the internal structure of the material. During the casting process, by strictly controlling the temperature, pouring speed and other parameters, the dimensional accuracy and surface quality of the casting are ensured. Numerical control machining is based on the casting blank, using high-precision numerical control equipment to finely process the support frame. By programming the tool path, various complex shapes, mounting holes and positioning marks can be accurately machined to meet the high-precision machining requirements of the integrated support frame. This combination of advanced processing technology ensures the manufacturing precision and quality stability of the integrated support frame.

[0100] Due to the absence of splicing gaps and connecting parts, the integrated support frame does not have the problem of structural strength reduction caused by splicing gaps or connecting part failure. Its overall structure can uniformly bear the weight and external force from the mirror, the fixing device and the edge-emitting laser, and is not prone to deformation or damage during long-term use, providing a reliable structural guarantee for the detection jig. For example, during the detection process, even if subjected to a certain degree of vibration or impact, the integrated support frame can remain stable, ensuring that the positions of the mirror and the laser are not affected and guaranteeing the accuracy of the detection light path.

[0101] Integrated design makes the parts of the support frame have higher integrity and synergy. Its stability not only lies in resisting external deformation, but also lies in adaptability to changes in environmental factors such as temperature and humidity. Due to the consistency of the material and the integrity of the structure, the thermal expansion and contraction of the support frame under different environmental conditions is relatively uniform, and is not prone to local deformation or displacement due to environmental changes, thereby ensuring the accuracy of the positioning marks and the stability of the relative positions of the components, providing strong support for the reliable operation of the detection jig in complex environments.

[0102] The integrated structure design reduces the number of components and simplifies the assembly process. Compared to traditional multi-component combined support frames, it does not require a large number of connecting parts and complex assembly processes, reducing material and labor costs during manufacturing. At the same time, by reducing the fitting error between components, it improves the first-time pass rate of the product, further reducing production costs. For example, in large-scale production of test fixtures, the integrated support frame design can significantly improve production efficiency and reduce total costs.

[0103] The integrated support frame has no splicing gaps and hidden corners, with a smooth and flat surface that is not prone to dust and debris accumulation. During routine maintenance and cleaning, it can be kept clean and tidy with simple wiping or washing. Moreover, due to its simple structure, it is easier to inspect and repair when faults occur, reducing maintenance time and workload and improving the efficiency of the test fixture.

[0104] The integrated support frame design has a profound impact on the entire edge-emitting laser cavity surface batch test fixture. It provides a stable and precise mounting platform for the mirrors, fixing devices, and edge-emitting lasers, ensuring the accuracy and stability of the detection optical path, thereby improving the reliability and consistency of the detection results. At the same time, its advantages in manufacturing, assembly, maintenance, etc. reduce the overall cost of the test fixture, improve production efficiency and service life, and make the test fixture more competitive in the market.

[0105] In summary, the integrated structure design of the support frame has significant advantages in the edge-emitting laser cavity surface batch test fixture, and is an important design innovation to improve the performance and quality of the test fixture.

[0106] In some embodiments, it also includes a light source device arranged on one side of the support frame for providing parallel incident light to the mirror. Light source device description in edge-emitting laser cavity surface batch test fixture

[0107] The light source device is arranged on one side of the support frame based on multiple considerations. On the one hand, this layout allows the light to be incident on the mirror at a more ideal angle, optimizing the detection optical path. By adjusting the relative position of the light source device and the support frame, it can be ensured that the light accurately illuminates the cavity surface of the edge-emitting laser after being reflected by the mirror, thereby achieving effective detection of the reflected light from the cavity surface. On the other hand, this position facilitates the installation, adjustment, and maintenance of the light source device by the operator. On one side of the support frame, the light source device is easily accessible, whether it is replacing the bulb, adjusting the light parameters, or performing equipment cleaning and other operations, making it easy to complete and improving the usability of the test fixture.

[0108] The light source device usually adopts a specific type of light-emitting element, such as a laser diode, an LED array, etc., to generate light. In order to obtain parallel incident light, it is equipped with precise optical components such as collimating lenses, mirror groups, etc. inside. The light emitted by the light-emitting element first passes through the collimating lens, which converts the divergent light into parallel light using the refraction principle of the lens. Then, the light is adjusted in direction and focused by the mirror group to ensure that the parallel light can accurately hit the mirror on the support frame. In some advanced light source devices, there is also an intelligent control system that can automatically adjust the intensity, wavelength, etc. of the light according to the detection requirements, to adapt to the detection requirements of different types of edge-emitting lasers.

[0109] In order to ensure the accuracy of the detection results, the quality of the light provided by the light source device is crucial. First of all, the parallelism of the light should be high, and the divergence or convergence of the light should be minimized to ensure that after multiple reflections of the light through the mirror and the edge-emitting laser cavity surface, the light can still remain within the required optical path range for detection. Secondly, the intensity of the light should be stable and adjustable. Stable light intensity can ensure the consistency of the signal during detection, avoiding detection errors caused by fluctuations in light intensity. At the same time, the adjustable light intensity function allows the operator to flexibly adjust the light intensity according to the sensitivity of the edge-emitting laser and the changes in the detection environment, to obtain the best detection effect. In addition, the wavelength of the light also needs to meet certain requirements. For different types of edge-emitting lasers, specific wavelengths of light may be required to excite the reflection of their cavity surfaces, thereby achieving accurate detection.

[0110] The light source device plays a core role in the batch detection jig of the edge-emitting laser cavity. The parallel incident light it provides is the starting point of the entire detection optical path, directly affecting the reflection effect of the light by the mirror and the detection accuracy of the reflected light by the edge-emitting laser cavity. If the light source device provides poor quality light, such as non-parallel light, unstable intensity or inappropriate wavelength, even if the installation positions of the mirror and the edge-emitting laser are accurate, accurate and reliable detection results cannot be obtained. Therefore, a high-quality light source device is a key prerequisite for ensuring that the detection jig can efficiently and accurately detect the edge-emitting laser cavity. It cooperates with the integrated support frame and other components to provide a solid guarantee for the quality detection of edge-emitting lasers.

[0111] The various embodiments described in this specification are presented in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. The above description of the disclosed embodiments enables those skilled in the art to implement or use this invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this invention. Therefore, this invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0112] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the substantive content of this utility model.

Claims

1. An edge-emitting laser cavity surface batch detection jig, characterized in that, The utility model relates to a kind of laser light source device, including: Support frame; At least three mirrors, in turn embedded on the support frame, so that the light of parallel incidence changes angle and emits upward; At least three fixing devices, fixed on the support frame, correspond to the mirror one by one, for fixing edge emitting laser and making the reflection light of the cavity surface of the edge emitting laser pass through the mirror and emit upward.

2. The edge-emitting laser cavity surface batch detection jig according to claim 1, wherein, The fixing device includes clamping part, and can be adaptively clamped and fixed according to different sizes of the edge emitting laser.

3. The edge-emitting laser cavity surface batch detection jig according to claim 2, wherein, The fixing device further includes adjusting part; The adjusting part includes horizontal adjusting device and vertical adjusting device, the horizontal adjusting device is used for adjusting the position of the edge emitting laser in horizontal direction, and the vertical adjusting device is used for adjusting the position of the edge emitting laser in vertical direction.

4. The edge-emitting laser cavity surface batch detection jig according to claim 1, wherein, The position of the fixing device on the support frame is adjustable.

5. The edge-emitting laser cavity surface batch detection jig according to claim 4, wherein, The support frame is provided with guide rail, and the fixing device is slidably connected with the guide rail through sliding block.

6. The edge-emitting laser cavity surface batch detection jig according to claim 1, wherein, It further includes angle adjusting mechanism, for fine tuning the pitch angle and / or deflection angle of the mirror.

7. The edge-emitting laser cavity surface batch detection jig according to claim 1, wherein, The support frame is provided with a plurality of mounting holes, and the mirror is fixed on the support frame through the mounting hole.

8. The edge-emitting laser cavity surface batch detection jig according to claim 1, wherein, The support frame is further provided with positioning mark, for positioning when the edge emitting laser is installed, to ensure that the cavity surface reflection light can accurately pass through the corresponding mirror.

9. The edge-emitting laser cavity surface batch detection jig according to claim 1, wherein, The support frame is an integrated structure design.

10. The edge-emitting laser cavity surface batch detection jig according to claim 1, wherein, It further includes light source device, and the light source device is arranged on one side of the support frame, for providing parallel incidence light to the mirror.

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