Improved parallel light structure of short-wavelength laser emission device

Abstract

The utility model relates to the technical field of short-wavelength laser transmitters, in particular to a parallel light improved structure of a short-wavelength laser transmitter. Comprising a plastic sheath, a lead and a loading column, the inner wall of one end of the plastic sheath is in glue joint with the arc surface of the loading column, an adjusting device is arranged on the inner wall of the plastic sheath and the inner wall of the loading column, the adjusting device comprises a lens frame, the arc surface of the lens frame is in glue joint with the inner wall of the loading column, and a lens body is fixedly connected to the surface of the lens frame. A diode base is glued to the inner wall of the lens frame, a laser chip is fixedly connected to the side, close to the lens body, of the diode base, a colloid is glued to the end, away from the lens frame, of the inner wall of the loading column, and a parallel light collimator is glued to the inner wall of the colloid. The parallel light improved structure of the short-wavelength laser emission device provided by the utility model has the advantage that the short-wavelength laser emission device can be conveniently installed, adjusted and limited.

Description

Technical Field

[0001] The utility model relates to the technical field of short-wavelength laser emitters, in particular to an improved parallel light structure of a short-wavelength laser emitting device. Background Art

[0002] As an optical signal transmitting device in communication and sensing systems, semiconductor lasers are driven by electric current to convert electrical signals into optical signals, which enter optical fiber transmission to achieve information transmission and sensor detection. They are relatively common in optical fiber communication technology.

[0003] It was found in the use of fiber laser transmitting equipment that since the optical signal is output from the laser chip, it passes through the converging light focusing lens in the middle, and then reaches the end face of the optical fiber and enters the optical fiber. Since the distance from the optical fiber to the lens and the physical size of the overall device are determined and limited by the optical parameters such as the refractive index and focal length of the lens, it is easy to cause the structural size between the laser transmitting devices to be relatively limited, making it inconvenient to perform installation limit adjustment. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art that the optical signal is output from the laser chip, passes through the converging light focusing lens in the middle, and then reaches the end face of the optical fiber and enters the optical fiber. Since the distance from the optical fiber to the lens and the physical size of the overall device are determined and limited by the optical parameters such as the refractive index and focal length of the lens, it is easy to cause the structural size between the laser emitting devices to be relatively limited, making it inconvenient to perform installation limit adjustment.

[0005] In order to solve the above technical problems, the utility model provides an improved parallel light structure of a short-wavelength laser emitting device, comprising: a plastic sheath, a lead and a loading column, the inner wall of one end of the plastic sheath is glued to the arc surface of the loading column, the plastic sheath and the inner wall of the loading column are provided with an adjustment device, the adjustment device comprises a lens frame, the arc surface of the lens frame is glued to the inner wall of the loading column, a lens body is fixedly connected to the surface of the lens frame, a diode base is glued to the inner wall of the lens frame, a laser chip is fixedly connected to the side of the diode base close to the lens body, a colloid is glued to the end of the inner wall of the loading column away from the lens frame, a parallel light collimator is glued to the inner wall of the colloid, an optical fiber body is fixedly connected to the end of the parallel light collimator away from the lens body, and the surface of the optical fiber body slides through the plastic sheath.

[0006] The effect achieved by the above components is: in the process of operating and using the short-wavelength laser emitter, in order to facilitate the shortening and adjustment of the distance between the internal laser chip and the lens of the laser emitter and to lengthen the device size, the plastic sheath is docked and fixed to the loading column, and then the light body is fixed through a parallel light collimator. After that, the parallel light collimator is fixed and limited to the loading column through a colloid, and then the lens is fixed and limited to the loading column by using a lens holder, and at the same time, the entire diode base is docked and limited to the lens holder. At this time, the entire short-wavelength laser emitting device can be easily installed and adjusted.

[0007] Preferably, the first protective shell and the second protective shell are respectively clamped on both sides of the arc surface of the plastic sheath, and both sides of the first protective shell and the second protective shell are fixedly connected with connecting blocks, and the arc surfaces of the two connecting blocks are threadedly connected with the same fixed shaft.

[0008] The effect achieved by the above components is: when the entire plastic sheath is operated for a long time, in order to prevent the plastic sheath from being damaged by bumps, the first protective shell and the second protective shell are abutted and fixed to avoid deformation.

[0009] Preferably, the first protective shell and the second protective shell are both hard alloy shells, and the cross-sectional dimensions of the first protective shell and the second protective shell are matched with the cross-sectional dimensions of the plastic sheath.

[0010] The effect achieved by the above components is that the first protective shell and the second protective shell made of cemented carbide can effectively protect the entire laser transmitter body.

[0011] Preferably, the arc surface of the fixed shaft is provided with a plurality of friction grooves, and the plurality of friction grooves are evenly distributed on the surface of the fixed shaft.

[0012] The effect achieved by the above components is that during the rotation of the fixed shaft, the friction grooves provided on the surface of the fixed shaft can assist the rotation.

[0013] Preferably, a compression pad is fixedly connected to the inner wall of one end of the first protective shell and the second protective shell close to the optical fiber body, and the cross-section of the compression pad is arc-shaped.

[0014] The effects achieved by the above components are: while the first protective shell and the second protective shell protect the optical fiber body, the optical fiber body can be limited by the compression pad with an arc-shaped cross section.

[0015] Preferably, a plurality of auxiliary blocks are fixedly connected to the inner wall of the compression pad, and the plurality of auxiliary blocks are all rubber blocks, and the surfaces of the auxiliary blocks are in contact with the arc surface of the optical fiber body.

[0016] The effect achieved by the above components is that the friction between the extrusion pad and the optical fiber body can be increased by using the auxiliary block made of rubber material, so as to facilitate better fixation.

[0017] Preferably, one end of the first protective shell and the second protective shell are both in a pointed cone shape, and the cross-sectional dimensions of the pointed cone ends of the first protective shell and the second protective shell are adapted to the cross-sectional dimensions of the optical fiber body.

[0018] The effect achieved by the above components is that the pointed cone ends of the first protective shell and the second protective shell can effectively adapt and limit the position of the optical fiber body.

[0019] Compared with the related art, the improved parallel light structure of a short-wavelength laser emitting device provided by the utility model has the following beneficial effects:

[0020] The utility model provides an improved parallel light structure of a short-wavelength laser emitting device. In the process of operating and using the short-wavelength laser emitter, in order to facilitate the shortening and adjustment of the spacing between the internal laser chip of the laser emitter and the components such as the lens and the lengthening of the component size, the plastic sheath is docked and fixed with the loading column, and then the light body is fixed by a parallel light collimator. After that, the parallel light collimator is fixed and limited with the loading column by a colloid, and then the lens is fixed and limited with the loading column by a lens holder, and the entire diode base is docked and limited with the lens holder. At the same time, the entire plastic sheath is operated and used for a long time. In order to avoid the plastic sheath from being damaged by collision, the first protective shell and the second protective shell are abutted and fixed to avoid deformation. By operating the adjustment device, the entire short-wavelength laser emitting device can be conveniently installed, adjusted and limited. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of an improved parallel light structure of a short-wavelength laser emitting device provided by the utility model;

[0022] Figure 2 for Figure 1 The schematic diagram of the split structure of the three-dimensional structure shown;

[0023] Figure 3 for Figure 1 A schematic cross-sectional view of the three-dimensional structure shown;

[0024] Figure 4 for Figure 2 The enlarged structural diagram of A shown;

[0025] Figure 5 for Figure 2 A schematic diagram of the enlarged structure at point B is shown.

[0026] Numbers in the figure: 1, plastic sheath; 2, loading column; 3, lens holder; 4, adjustment device; 401, parallel light collimator; 402, diode base; 403, optical fiber body; 404, lens body; 405, laser chip; 406, colloid; 407, first protective shell; 408, second protective shell; 409, connecting block; 410, fixed shaft; 411, friction groove; 412, extrusion pad; 413, auxiliary block. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0029] See also Figures 1 to 5 The embodiment of the utility model provides an improved parallel light structure of a short-wavelength laser emitting device, comprising: a plastic sheath 1, a lead and a loading column 2, the inner wall of one end of the plastic sheath 1 is glued to the arc surface of the loading column 2, and the inner walls of the plastic sheath 1 and the loading column 2 are provided with an adjustment device 4.

[0030] In the embodiments of the present invention, please refer to Figure 2 , Figure 3 , Figure 4 and Figure 5The adjusting device 4 comprises a lens frame 3, the arc surface of the lens frame 3 is glued to the inner wall of the loading column 2, a lens body 404 is fixedly connected to the surface of the lens frame 3, a diode base 402 is glued to the inner wall of the lens frame 3, a laser chip 405 is fixedly connected to the side of the diode base 402 close to the lens body 404, a colloid 406 is glued to the end of the inner wall of the loading column 2 away from the lens frame 3, a parallel light collimator 401 is glued to the inner wall of the colloid 406, an optical fiber body 403 is fixedly connected to the end of the parallel light collimator 401 away from the lens body 404, the surface of the optical fiber body 403 slides through the plastic sheath 1, a first protective shell 407 and a second protective shell 408 are respectively clamped on both sides of the arc surface of the plastic sheath 1, a connecting block 409 is fixedly connected to both sides of the first protective shell 407 and the second protective shell 408, and the arc surfaces of the two connecting blocks 409 are threadedly connected with the same fixed shaft 410, The first protective shell 407 and the second protective shell 408 are both carbide shells, and the cross-sectional dimensions of the first protective shell 407 and the second protective shell 408 are adapted to the cross-sectional dimensions of the plastic sheath 1. The arc surface of the fixed shaft 410 is provided with a plurality of friction grooves 411, and the plurality of friction grooves 411 are evenly distributed on the surface of the fixed shaft 410. An extrusion pad 412 is fixedly connected to the inner wall of one end of the first protective shell 407 and the second protective shell 408 close to the optical fiber body 403. The cross-sectional shape of the extrusion pad 412 is arc-shaped, and a plurality of auxiliary blocks 413 are fixedly connected to the inner wall of the extrusion pad 412. The plurality of auxiliary blocks 413 are rubber blocks, and the surfaces of the auxiliary blocks 413 are in contact with the arc surface of the optical fiber body 403. One end of the first protective shell 407 and the second protective shell 408 are both conical, and the cross-sectional dimensions of the conical ends of the first protective shell 407 and the second protective shell 408 are adapted to the cross-sectional dimensions of the optical fiber body 403.

[0031] The working principle of the improved parallel light structure of a short-wavelength laser emitting device provided by the utility model is as follows: in the process of operating and using the short-wavelength laser emitter, in order to facilitate the shortening and adjustment of the distance between the internal laser chip of the laser emitter and the lens and other devices and to lengthen the device size, the plastic sheath 1 is docked and fixed with the loading column 2, and then the light body is fixed by the parallel light collimator 401, and then the parallel light collimator 401 is fixed and limited with the loading column 2 by the colloid 406, and then the lens and the loading column 2 are fixed by the lens holder 3. The supporting column 2 is fixed and limited, and the entire diode base 402 is docked and limited with the lens frame 3. At the same time, the entire plastic sheath 1 is operated and used for a long time. In order to avoid damage to the plastic sheath 1 due to bumps, the first protective shell 407 and the second protective shell 408 are used to abut and fix. First, the first protective shell 407 and the second protective shell 408 are abutted, and then the fixed shaft 410 is rotated to allow the fixed shaft 410 to be threadedly docked with the two connecting blocks 409, so that the entire plastic sheath 1 is closed, fixed and protected to avoid deformation.

[0032] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0033] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An improved structure of parallel light for a short-wavelength laser emitting device, characterized in that: include: A plastic sheath (1), a lead and a loading column (2), wherein the inner wall of one end of the plastic sheath (1) is glued to the arc surface of the loading column (2), the inner wall of the plastic sheath (1) and the loading column (2) are provided with an adjustment device (4), the adjustment device (4) comprises a lens frame (3), the arc surface of the lens frame (3) is glued to the inner wall of the loading column (2), a lens body (404) is fixedly connected to the surface of the lens frame (3), and a diode base (402) is glued to the inner wall of the lens frame (3), A laser chip (405) is fixedly connected to one side of the diode base (402) close to the lens body (404); a colloid (406) is glued to one end of the inner wall of the loading column (2) away from the lens frame (3); a parallel light collimator (401) is glued to the inner wall of the colloid (406); an optical fiber body (403) is fixedly connected to one end of the parallel light collimator (401) away from the lens body (404); and a surface of the optical fiber body (403) slides through the plastic sheath (1).

2. The improved parallel light structure of a short-wavelength laser emitting device according to claim 1, characterized in that: The first protective shell (407) and the second protective shell (408) are respectively clamped on both sides of the circular arc surface of the plastic sheath (1); both sides of the first protective shell (407) and the second protective shell (408) are fixedly connected with connecting blocks (409); the circular arc surfaces of the two connecting blocks (409) are threadedly connected with the same fixed shaft (410).

3. The improved parallel light structure of a short-wavelength laser emitting device according to claim 2, characterized in that: The first protective shell (407) and the second protective shell (408) are both hard alloy shells, and the cross-sectional dimensions of the first protective shell (407) and the second protective shell (408) are compatible with the cross-sectional dimensions of the plastic sheath (1).

4. The improved parallel light structure of a short-wavelength laser emitting device according to claim 2, characterized in that: The arc surface of the fixed shaft (410) is provided with a plurality of friction grooves (411), and the plurality of friction grooves (411) are evenly distributed on the surface of the fixed shaft (410).

5. The improved parallel light structure of a short-wavelength laser emitting device according to claim 2, characterized in that: The inner walls of one end of the first protective shell (407) and the second protective shell (408) close to the optical fiber body (403) are both fixedly connected with a compression pad (412), and the cross-section of the compression pad (412) is in an arc shape.

6. The improved parallel light structure of a short-wavelength laser emitting device according to claim 5, characterized in that: The inner wall of the compression pad (412) is fixedly connected with a plurality of auxiliary blocks (413), and the plurality of auxiliary blocks (413) are all rubber blocks, and the surfaces of the auxiliary blocks (413) are in contact with the arc surface of the optical fiber body (403).

7. The improved parallel light structure of a short-wavelength laser emitting device according to claim 2, characterized in that: One end of the first protective shell (407) and the second protective shell (408) are both in a pointed cone shape, and the cross-sectional dimensions of the pointed cone ends of the first protective shell (407) and the second protective shell (408) are compatible with the cross-sectional dimensions of the optical fiber body (403).

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