A laser dazzling light source module and a laser dazzling weapon with the light source module

Abstract

The application discloses a laser dazzling light source module and a laser dazzling weapon with the light source module. The laser dazzling light source module comprises a light source module for generating a laser beam, a collimation module for collimating the laser beam generated by the light source module, and a zoom module for zooming the laser beam collimated by the collimation module. The light source module has a semiconductor laser. The collimation module has an aspheric collimation mirror, a flat-concave cylindrical lens and a flat-convex cylindrical lens. The zoom module has a zoom moving mirror and a zoom fixed mirror. The semiconductor laser, the aspheric collimation mirror, the flat-concave cylindrical lens, the flat-convex cylindrical lens, the zoom moving mirror and the zoom fixed mirror are arranged in sequence along an axis from front to back. The laser dazzling light source module has the advantages of small size, being suitable for various portable laser dazzling weapons, and simple structure, so that the equipment is easy to assemble and adjust.

Description

Technical Field

[0001] This invention relates to laser dazzling devices, and more particularly, to a laser dazzling light source module and a laser dazzling weapon equipped with the light source module. Background Technology

[0002] Laser glare source modules are an important component of laser glare weapons. Currently, the drawbacks of laser glare source modules are their relatively large weight and size, making laser glare weapons equipped with them less portable. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a compact and portable laser glare source module and a laser glare weapon equipped with the source module.

[0004] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows: A laser glare source module, comprising: a light source module for generating a laser beam, a collimation module for collimating the laser beam generated by the light source module, and a zoom module for zooming the laser beam collimated by the collimation module; the light source module has a semiconductor laser, the collimation module has an aspherical collimating lens, a plano-concave cylindrical lens, and a plano-convex cylindrical lens, and the zoom module has a zoom-moving lens and a zoom-fixed lens; wherein, the semiconductor laser, the aspherical collimating lens, the plano-concave cylindrical lens, the plano-convex cylindrical lens, the zoom-moving lens, and the zoom-fixed lens are arranged sequentially from front to back along an axis. The semiconductor laser is used to emit a dazzling laser beam. The aspherical collimating lens is used for fast and slow axis collimation. The plano-concave cylindrical lens is used for slow axis beam expansion. The plano-convex cylindrical lens is used for slow axis collimation. The zoom-moving lens changes the divergence angle of the emitted light by axial movement, controls the spot size at different working distances, and ensures that the power density is within a safe range.

[0005] As a preferred embodiment of the laser glare source module, the light source module further includes a laser holder that rotates along the axis. The semiconductor laser is fixed at the front end of the laser holder and its circumferential rotation is restricted. The collimation module further includes a wave spring, a collimating lens holder, a collimation adjustment ring, and a cylindrical lens holder. The wave spring is located at the front end of the laser holder, and the collimating lens holder is located at the rear end of the laser holder. The collimating lens holder rotates along the axis, and the front and rear ends of the wave spring axially abut against the bottom of the laser holder and the bottom of the collimating lens holder, respectively. The aspherical collimating lens is fixed at the front end of the collimating lens holder. The cylindrical lens holder rotates along the axis and has a small-diameter front section and a large-diameter rear section. The plano-concave cylindrical lens is fixed at the front end of the front section of the cylindrical lens holder, and the plano-convex cylindrical lens is fixed in the middle of the rear section of the cylindrical lens holder. Position: The collimation adjustment ring rotates along the axis. The collimation adjustment ring has an axial portion and a radial portion. The front end of the axial portion of the adjustment ring surrounds the radially outer side of the laser barrel, and the rear end of the axial portion of the adjustment ring surrounds the radially outer side of the front end of the rear section of the cylindrical lens barrel. The axial portion of the adjustment ring is screwed into the laser barrel via a fine-pitch thread. The axial portion of the adjustment ring abuts axially against a limiting protrusion at the middle position of the rear section of the cylindrical lens barrel. The radial portion of the adjustment ring is between the laser barrel and the rear section of the cylindrical lens barrel, and axially abuts axially forward against the radially outward flange of the collimation barrel or the barrel body. The zoom module further includes a fixed barrel, a movable barrel, and a zoom adjustment ring. The fixed barrel rotates along the axis and has a front section and a rear section. The movable barrel rotates along the axis and is located inside the front section of the barrel.The fixed lens barrel has a guide groove at its front end, and the movable lens barrel has a guide slider located in the guide groove. The guide slider extends radially beyond the guide groove, and the guide slider and the guide groove form a sliding pair. The movable lens barrel and the fixed lens barrel can slide relative to each other to adjust the distance between the zoom movable lens and the zoom fixed lens. Simultaneously, the guide slider and the guide groove together restrict the circumferential rotation of the zoom movable lens. The zoom movable lens is fixed inside the movable lens barrel, and the zoom fixed lens is fixed inside the fixed lens barrel. In the intermediate position, the zoom adjustment ring rotates along the axis. The zoom adjustment ring has an axial portion, which surrounds the radially outer side of the movable lens barrel. The middle position of the axial portion is screwed onto the guide slider via a thread. The front end of the axial portion surrounds the radially outer side of the rear section of the cylindrical lens barrel and axially abuts against the limiting protrusion of the rear section of the cylindrical lens barrel. The rear end of the axial portion surrounds the radially outer side of the front section of the movable lens barrel and axially abuts against the limiting protrusion of the rear section of the fixed lens barrel.

[0006] As a preferred embodiment of the laser glare source module, the light source module further includes a laser heat sink at the front end of the laser holder, with the laser heat sink covering the semiconductor laser; preferably, the contact surface between the semiconductor laser and the laser heat sink is coated with thermally conductive silicone grease.

[0007] As a preferred embodiment of the laser glare source module, the outer peripheral surface of the semiconductor laser has a rectangular slot, and the inner peripheral surface of the mounting hole at the bottom of the laser housing has a rectangular buckle located in the rectangular slot. The rectangular buckle engages with the rectangular slot, thereby restricting the circumferential rotation of the semiconductor laser.

[0008] As a preferred embodiment of the laser glare source module, the laser barrel has a guide groove extending in the front-back direction, and the collimating lens barrel has a guide slider corresponding to the guide groove. The guide slider and the guide groove form a sliding pair, so that the laser barrel and the collimating lens barrel can slide relative to each other.

[0009] As a preferred embodiment of the laser glare source module, both the front and rear sections of the cylindrical base have rectangular lens slots. The flat end of the cylindrical lens is in contact with the stepped surface of the rectangular lens slot. The edge of the stepped surface has a ring of glue storage grooves, and glue injection holes are also opened at the four corners of the rectangular lens slot. When installing the cylindrical lens, glue is evenly applied to the stepped surface of the rectangular lens slot, the flat end of the cylindrical lens is pressed against the stepped surface, and the glue injection holes at the four corners of the rectangular lens slot are also glued and fixed. Excess glue on the stepped surface and the glue injection holes overflows into the glue storage groove.

[0010] As a preferred embodiment of the laser glare source module, the plano-concave cylindrical lens and the plano-convex cylindrical lens are restricted from circumferential rotation. The front section of the barrel is inside the collimating lens barrel, and the front section of the barrel engages with the raceway hole phase axis hole of the collimating lens barrel, thereby restricting the circumferential rotation of the plano-concave cylindrical lens and the plano-convex cylindrical lens.

[0011] As a preferred embodiment of the laser glare source module, the adjusting ring has an axial injection hole located on the fine thread. When the aspherical collimating lens is adjusted to the designated position, glue is injected into the injection hole to fix the collimating adjusting ring to the laser housing.

[0012] Another technical solution provided by the present invention: a laser glare weapon equipped with the aforementioned laser glare source module.

[0013] Compared with the prior art, the beneficial effects of the present invention are at least as follows: 1. The laser glare source module is small in size and suitable for a variety of portable laser glare weapons, such as glare guns, batons and other equipment; 2. The simplified structure makes the equipment easy to assemble and adjust.

[0014] In addition to the technical problems solved by the present invention, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions as described above, other technical problems that the present invention can solve, other technical features contained in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail with reference to the accompanying drawings. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure (combined state) of an embodiment of the present invention.

[0016] Figure 2 This is a structural schematic diagram (decomposed state) of an embodiment of the present invention.

[0017] Figure 3 This is a structural diagram of the zoom unit in an embodiment of the present invention. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings. It should be noted that these descriptions of embodiments are intended to aid in understanding the invention and do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0019] See Figures 1 to 2 The figure shows a laser glare source module that can be installed in laser glare weapons. The laser glare source module includes: a light source module 1, a collimation module 2, and a zoom module 3, etc.

[0020] The light source module 1 is used to generate a laser beam. In a specific implementation, the light source module 1 has a semiconductor laser 11. The generation of the laser beam by the light source module 1 is achieved by the semiconductor laser 11.

[0021] The collimation module 2 is used to collimate the laser beam generated by the light source module 1. Specifically, the collimation module 2 includes an aspherical collimating lens 21, a plano-concave cylindrical lens 23, and a plano-convex cylindrical lens 24. The aspherical collimating lens 21, the plano-concave cylindrical lens 23, and the plano-convex cylindrical lens 24 together enable the collimation module 2 to collimate the laser beam generated by the light source module 1.

[0022] The zoom module 3 is used to zoom the laser beam collimated by the collimation module 2. Specifically, the zoom module 3 has a zoom moving mirror 31 and a zoom fixed mirror 33. The zoom moving mirror 31 and the zoom fixed mirror 33 together enable the zoom module 3 to zoom the laser beam collimated by the collimation module 2.

[0023] The semiconductor laser 11, the aspherical collimating lens 21, the plano-concave cylindrical lens 23, the plano-convex cylindrical lens 24, the zoom-moving lens 31, and the zoom-fixed lens 33 are arranged sequentially from front to back along an axis. The semiconductor laser 11 emits light backward. The laser beam generated by the semiconductor laser 11 passes sequentially through the aspherical collimating lens 21, the plano-concave cylindrical lens 23 and the plano-convex cylindrical lens 24 (collimation processing), and the zoom-moving lens 31 and the zoom-fixed lens 33 (zoom processing) before being emitted backward. This can cause dizziness, temporary blindness, or other adverse effects on the target, thereby rendering them unable to resist.

[0024] The light source module 1 further includes a laser holder 12 and a laser heat sink 13 at the front end of the laser holder 12.

[0025] The laser housing 12 rotates along the axis. The semiconductor laser 11 is fixed at the front end of the laser housing 12. The laser heat sink 13 covers the semiconductor laser 11. The pins of the semiconductor laser 11 pass through the oblong perforation of the laser heat sink 13 and lead out as wires, connecting to an external power supply. Preferably, the contact surface between the semiconductor laser 11 and the laser heat sink 13 is coated with thermal grease, so that the heat generated by the semiconductor laser 11 during operation can be quickly conducted to the laser heat sink 13, improving the heat dissipation performance of the semiconductor laser 11.

[0026] The semiconductor laser 11 is restricted from circumferential rotation to ensure that the fast and slow axis directions of the semiconductor laser 11 remain unchanged. Specifically, the outer circumferential surface of the semiconductor laser 11 has a rectangular groove, while the inner circumferential surface of the mounting hole at the bottom of the laser housing 12 has a rectangular latch located in the rectangular groove. The rectangular latch engages with the rectangular groove, thereby restricting the circumferential rotation of the semiconductor laser 11.

[0027] The collimation module 2 further includes a wave spring 28, a collimation lens holder 22, a collimation adjustment ring 26, and a cylindrical lens holder 25.

[0028] The wave spring 28 is located at the front end of the laser barrel 12. The collimating lens barrel 22 is located at the rear end of the laser barrel 12. The collimating lens barrel 22 rotates along the axis. The front and rear ends of the wave spring 28 axially abut against the bottom of the laser barrel 12 and the bottom of the collimating lens barrel 22, respectively.

[0029] The aspherical collimating lens 21 is fixed at the front end of the collimating lens barrel base 22 by a threaded pressure ring 27.

[0030] The laser holder 12 has a guide groove extending along the front-to-back direction. The collimating lens holder 22 has a guide slider corresponding to the guide groove. The guide slider and the guide groove form a sliding pair, allowing the laser holder 12 and the collimating lens holder 22 to slide relative to each other to adjust the distance between the semiconductor laser 11 and the aspherical collimating lens 21, thereby positioning the aspherical collimating lens 21 in a collimated position. Furthermore, the guide slider and the guide groove also restrict the circumferential rotation of the aspherical collimating lens 21, ensuring that its fast and slow axis directions remain unchanged and are the same as the fast and slow axis directions of the semiconductor laser 11. In a specific implementation, there are two guide grooves, arranged opposite each other.

[0031] The cylindrical lens holder 25 rotates along the axis. The cylindrical lens holder 25 has a small-diameter front section and a large-diameter rear section. The plano-concave cylindrical lens 23 is fixed at the front end of the front section of the cylindrical lens holder 25. The plano-convex cylindrical lens 24 is fixed at the middle of the rear section of the cylindrical lens holder 25. In a specific implementation, both the front and rear sections of the holder have rectangular lens grooves. The flat end of the cylindrical lens is in contact with the stepped surface of the rectangular lens groove. A ring of adhesive reservoir is located around the edge of the stepped surface, and adhesive injection holes are also provided at the four corners of the rectangular lens groove. When installing the cylindrical lens, adhesive is evenly applied to the stepped surface of the rectangular lens groove, the flat end of the cylindrical lens is pressed tightly against the stepped surface, and the adhesive injection holes at the four corners of the rectangular lens groove are also used for adhesive injection and fixation. Excess adhesive on the stepped surface and the adhesive injection holes overflows into the adhesive reservoir.

[0032] The plano-concave cylindrical lens 23 and the plano-convex cylindrical lens 24 are restricted from circumferential rotation. In a specific implementation, the front section of the barrel base is located inside the collimating lens barrel base 22. The front section of the barrel base mates with the phase axis hole of the collimating lens barrel base 22 (elliptical hole or quasi-elliptical hole), thereby restricting the circumferential rotation of the plano-concave cylindrical lens 23 and the plano-convex cylindrical lens 24.

[0033] The collimation adjustment ring 26 rotates along the axis. The collimation adjustment ring 26 has an axial portion and a radial portion. The front end of the axial portion surrounds the laser barrel 12 radially outward. The rear end of the axial portion surrounds the front end of the rear section of the cylindrical lens barrel 25 radially outward. The axial portion of the adjustment ring engages with the laser barrel 12 via a fine-pitch thread, thereby allowing the collimation adjustment ring 26 to move back and forth along the laser barrel 12. The axial portion of the adjustment ring axially abuts against a limiting protrusion at the middle position of the rear section of the cylindrical lens barrel 25. The radial portion of the adjustment ring is located between the laser barrel 12 and the rear section of the cylindrical lens barrel 25. Simultaneously, the radial portion of the adjustment ring axially abuts forward against the collimation lens barrel 22 or the radially outward-flared edge of the barrel body. Specifically, when the collimation adjustment ring 26 rotates forward, it pushes the collimation lens holder 22 to move synchronously via its radial portion, further compressing the wave spring 28. Conversely, when the collimation adjustment ring 26 rotates backward, the wave spring 28 pushes the collimation lens holder 22 away from the semiconductor laser 11, following the collimation adjustment ring 26. By rotating the collimation adjustment ring 26, the aspherical collimating lens 21 can be adjusted to a designated position. Furthermore, the axial portion of the adjustment ring has a glue injection hole, which is located on the fine-pitch thread. After the aspherical collimating lens 21 is adjusted to the designated position, glue is injected into the glue injection hole, thereby fixing the collimation adjustment ring 26 to the laser holder 12.

[0034] See Figure 3 The zoom module 3 further includes a fixed lens barrel base 34, a movable lens barrel base 32, and a zoom adjustment ring 35.

[0035] The fixed lens barrel base 34 rotates along the axis. The fixed lens barrel base 34 has a front section 344 and a rear section 342.

[0036] The movable lens barrel base 32 rotates along the axis. The movable lens barrel base 32 is located inside the front section of the base. The front section of the fixed lens barrel base 34 has a guide groove 341. The movable lens barrel base 32 has a guide slider 321 located in the guide groove. The guide slider 321 extends radially beyond the guide groove 341. The guide slider 321 and the guide groove 341 form a sliding pair, allowing the movable lens barrel base 32 and the fixed lens barrel base 34 to slide relative to each other, thereby adjusting the distance between the zoom movable lens 31 and the zoom fixed lens 33. Simultaneously, the guide slider and the guide groove together restrict the circumferential rotation of the zoom movable lens 31. In a specific implementation, there are four guide grooves, evenly distributed along the circumferential direction.

[0037] The zoom movable lens 31 is fixed inside the movable lens barrel base 32 by a threaded retaining ring 36. The zoom fixed lens 33 is fixed at the middle position 343 of the fixed lens barrel base 34 by a threaded retaining ring 37.

[0038] The zoom adjustment ring 35 rotates along the axis. The zoom adjustment ring 35 has an axial portion. The axial portion of the adjustment ring surrounds the radially outer side of the movable lens barrel 32. The middle position of the axial portion of the adjustment ring is screwed onto the guide slider via a thread. The front end of the axial portion of the adjustment ring surrounds the radially outer side of the rear section of the cylindrical lens barrel 25 and axially abuts against the limiting protrusion of the rear section of the cylindrical lens barrel 25. The rear end of the axial portion of the adjustment ring surrounds the radially outer side of the front section of the movable lens barrel 32 and axially abuts against the limiting protrusion of the rear section of the fixed lens barrel 34. Rotating the zoom adjustment ring 35 pushes the zoom movable lens 31 to change the divergence angle.

[0039] Preferably, the system further includes a planar mirror 38. The planar mirror 38 is fixed to the rear end of the rear section of the base by a pressure ring 39. The planar mirror is used to protect the internal optical system.

[0040] The above description merely illustrates embodiments of the present invention and is quite specific and detailed; however, it should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A laser glare source module, characterized in that, include: The system comprises a light source module for generating a laser beam, a collimation module for collimating the laser beam generated by the light source module, and a zoom module for zooming the laser beam after collimation by the collimation module. The light source module includes a semiconductor laser, the collimation module includes an aspherical collimating lens, a plano-concave cylindrical lens, and a plano-convex cylindrical lens, and the zoom module includes a zoom-moving lens and a zoom-fixed lens. The semiconductor laser, the aspherical collimating lens, the plano-concave cylindrical lens, the plano-convex cylindrical lens, the zoom-moving lens, and the zoom-fixed lens are arranged sequentially from front to back along an axis.

2. The laser glare source module according to claim 1, characterized in that, The light source module further includes a laser holder, which rotates along the axis. The semiconductor laser is fixed at the front end of the laser holder and its circumferential rotation is restricted. The collimation module further includes a wave spring, a collimating lens holder, a collimation adjustment ring, and a cylindrical lens holder. The wave spring is located at the front end of the laser holder, and the collimating lens holder is located at the rear end of the laser holder. The collimating lens holder rotates along the axis, and the front and rear ends of the wave spring axially abut against the bottom of the laser holder and the bottom of the collimating lens holder, respectively. The aspherical collimating lens is fixed at the front end of the collimating lens holder. The cylindrical lens holder rotates along the axis and has a small-diameter front section and a large-diameter rear section. The plano-concave cylindrical lens is fixed at the front end of the front section of the cylindrical lens holder, and the plano-convex cylindrical lens is fixed at the middle of the rear section of the cylindrical lens holder. The collimation adjustment ring... The collimation adjustment ring rotates along the axis. The collimation adjustment ring has an axial portion and a radial portion. The front end of the axial portion surrounds the radially outer side of the laser barrel, and the rear end surrounds the radially outer side of the front end of the rear section of the cylindrical lens barrel. The axial portion of the adjustment ring is threaded into the laser barrel via a fine-pitch thread. The axial portion of the adjustment ring abuts axially against a limiting protrusion at the middle of the rear section of the cylindrical lens barrel. The radial portion of the adjustment ring is between the laser barrel and the rear section of the cylindrical lens barrel, and axially abuts forward against the radially outward-facing flange of the collimation barrel or the barrel body. The zoom module further includes a fixed barrel, a movable barrel, and a zoom adjustment ring. The fixed barrel rotates along the axis and has a front section and a rear section. The movable barrel rotates along the axis and is located inside the front section of the barrel.The fixed lens barrel has a guide groove at its front end, and the movable lens barrel has a guide slider located in the guide groove. The guide slider extends radially beyond the guide groove, and the guide slider and the guide groove form a sliding pair. The movable lens barrel and the fixed lens barrel can slide relative to each other to adjust the distance between the zoom movable lens and the zoom fixed lens. Simultaneously, the guide slider and the guide groove together restrict the circumferential rotation of the zoom movable lens. The zoom movable lens is fixed inside the movable lens barrel, and the zoom fixed lens is fixed inside the fixed lens barrel. In the intermediate position, the zoom adjustment ring rotates along the axis. The zoom adjustment ring has an axial portion that surrounds the radially outer side of the movable lens barrel. The middle position of the axial portion is screwed onto the guide slider via a thread. The front end of the axial portion surrounds the radially outer side of the rear section of the cylindrical lens barrel and axially abuts against the limiting protrusion of the rear section of the cylindrical lens barrel. The rear end of the axial portion surrounds the radially outer side of the front section of the movable lens barrel and axially abuts against the limiting protrusion of the rear section of the fixed lens barrel.

3. The laser glare source module according to claim 2, characterized in that, The light source module further includes a laser heat sink at the front end of the laser holder, the laser heat sink covering the semiconductor laser; preferably, the contact surface between the semiconductor laser and the laser heat sink is coated with thermal grease.

4. The laser glare source module according to claim 2, characterized in that, The outer peripheral surface of the semiconductor laser has a rectangular slot, and the inner peripheral surface of the mounting hole at the bottom of the laser base has a rectangular buckle located in the rectangular slot. The rectangular buckle engages with the rectangular slot, thereby restricting the circumferential rotation of the semiconductor laser.

5. The laser glare source module according to claim 2, characterized in that, The laser barrel has a guide groove extending in the front-back direction, and the collimating lens barrel has a guide slider corresponding to the guide groove. The guide slider and the guide groove form a sliding pair, so that the laser barrel and the collimating lens barrel can slide relative to each other.

6. The laser glare source module according to claim 2, characterized in that, Both the front and rear sections of the cylindrical base have rectangular lens grooves. The flat end of the cylindrical lens fits against the stepped surface of the rectangular lens groove. There is a ring of glue reservoir around the edge of the stepped surface, and glue injection holes are also opened at the four corners of the rectangular lens groove. When installing the cylindrical lens, glue is evenly applied to the stepped surface of the rectangular lens groove, the flat end of the cylindrical lens is pressed against the stepped surface, and the glue injection holes at the four corners of the rectangular lens groove are also glued and fixed. Excess glue on the stepped surface and the glue injection holes overflows into the glue reservoir.

7. The laser glare source module according to claim 2, characterized in that, The plano-concave cylindrical lens and the plano-convex cylindrical lens are restricted from circumferential rotation. The front section of the barrel is inside the collimating lens barrel base, and the front section of the barrel base mates with the raceway hole phase axis hole of the collimating lens barrel base, thereby restricting the circumferential rotation of the plano-concave cylindrical lens and the plano-convex cylindrical lens.

8. The laser glare source module according to claim 2, characterized in that, The adjusting ring has an axial injection hole located on the fine thread. When the aspherical collimating lens is adjusted to the designated position, glue is injected into the injection hole to fix the collimating adjusting ring to the laser cylinder.

9. A laser glare weapon comprising a laser glare source module according to any one of claims 1 to 8.

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