Zoom laser dazzler

Abstract

The utility model relates to the field of optical design, in particular to a zoom laser dazzler. The device comprises a lens assembly, a mounting plate, a motor mounting bracket, a stepping motor assembly, a photoelectric switch, a photoelectric switch mounting plate and an optical fiber socket, wherein the motor mounting bracket is fixedly mounted at the upper part of the mounting plate; the lens assembly and the mounting plate are fixedly mounted; the stepping motor assembly is fixedly installed on the side, away from the lens assembly, of the motor installation support. The driving assembly is installed at the bottom of the stepping motor assembly and used for driving the stepping motor assembly to move. And the photoelectric switch is fixedly mounted on the side edge of the motor mounting bracket through a photoelectric switch mounting plate. An optical fiber socket is fixedly installed on the motor installation support, and the optical fiber socket is installed at the bottom of the stepping motor assembly. According to the utility model, a series of defects of short service life, large divergence angle, high power consumption, low reliability, short irradiation distance and the like of the light source are overcome, and long-distance irradiation of the dazzling light source is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical design field, in particular to a zooming laser dazzler. BACKGROUND

[0002] Traditional halogen lamp and xenon lamp are used as dazzling light source, and the light emitting angle is large, which leads to high power consumption of the lamp, short irradiation distance and short service life. Some LED light sources adopt multi-bead array arrangement mode, and each bead is individually lighted, and the divergence angle can be achieved in 5-10°, and the divergence angle is still large, so the long dazzling irradiation distance cannot be achieved. Another kind of light source is blue light laser exciting fluorescence to produce white light, which can achieve small light emitting angle, but the electric light conversion efficiency is low, the heat dissipation is large, and the reliability is low. Therefore, a long-life, small-angle, low-power and long-irradiation-distance dazzling light source is needed. SUMMARY

[0003] In view of the above-mentioned defects of the prior art, the purpose of the utility model is to provide a long-life, small-angle, low-power and long-irradiation-distance zooming laser dazzler.

[0004] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a zooming laser dazzler, which comprises:

[0005] A mounting plate, and

[0006] A motor mounting bracket fixedly installed on the upper part of the mounting plate;

[0007] A lens assembly fixedly installed with the mounting plate;

[0008] A stepping motor assembly fixedly installed on the side of the motor mounting bracket away from the lens assembly;

[0009] A driving assembly installed on the bottom of the stepping motor assembly and used for driving the stepping motor assembly to move;

[0010] A photoelectric switch fixedly installed on the side edge of the motor mounting bracket through a photoelectric switch mounting plate.

[0011] In an embodiment of the utility model, it further comprises:

[0012] An optical fiber socket fixedly installed on the motor mounting bracket, and the optical fiber socket is installed on the bottom of the stepping motor assembly.

[0013] In an embodiment of the utility model, the lens assembly comprises:

[0014] A lens fixing piece fixedly installed on the mounting plate;

[0015] A sliding lens barrel, a lens part of which extends out of the lens fixing part, and a fixed part of the lens barrel is installed in the lens fixing part.

[0016] In an embodiment of the present application, the driving assembly comprises:

[0017] A connecting part is installed between the fixed part of the lens barrel and the stepping motor assembly.

[0018] A photoelectric switch shield is installed on the connecting part.

[0019] A screw slide is installed between the connecting part and the stepping motor assembly, and is used to realize zooming of the sliding lens barrel.

[0020] In an embodiment of the present application, the stepping motor assembly and the connecting part are fixedly connected through a screw.

[0021] In an embodiment of the present application, the lens fixing part and the connecting part are fixedly connected through a screw.

[0022] In an embodiment of the present application, the sliding lens barrel comprises four spherical lenses.

[0023] In an embodiment of the present application, the four spherical lenses comprise:

[0024] A first lens is arranged at the front end of the sliding lens barrel.

[0025] A second lens is arranged at the rear end of the first lens, and a preset distance is arranged between the first lens and the second lens.

[0026] A third lens is arranged at the rear end of the second lens, and a preset distance is arranged between the second lens and the third lens.

[0027] A fourth lens is arranged at the rear end of the third lens, and is glued with the third lens.

[0028] In an embodiment of the present application, the material of the first lens is H-ZF2, the material of the second lens is H-K9L, the material of the third lens is H-K9L, and the material of the fourth lens is H-ZF2.

[0029] In an embodiment of the present application, optical zooming is realized by moving the second lens.

[0030] As described above, the present application has the following beneficial effects:

[0031] (1) The zoom laser dazzler of the utility model comprises a lens assembly, a mounting plate, a motor mounting support, a stepping motor assembly, a photoelectric switch, a photoelectric switch mounting plate and a fiber socket, and has long service life, small angle and low power consumption, and long irradiation distance.

[0032] (2) The laser light source of the zoom laser dazzler has small light emitting point size, so that smaller divergence angle and longer dazzling irradiation distance can be realized, and the weight of the light source is greatly reduced, and the power consumption is also greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 A structure diagram of a zoom laser dazzler is provided for the embodiment of the application.

[0034] Figure 2 A structure diagram of a lens assembly and a stepping motor assembly of a zoom laser dazzler is provided for the embodiment of the application.

[0035] Figure 3 A structure diagram of a spherical lens of a zoom laser dazzler is provided for the embodiment of the application.

[0036] Figure 4 A spot distribution diagram at 2km of a zoom laser dazzler of a zoom laser dazzler is provided for the embodiment of the application.

[0037] ELEMENT NUMBER EXPLANATION

[0038] 1 lens assembly

[0039] 2 mounting plate

[0040] 3 motor mounting support

[0041] 4 stepping motor assembly

[0042] 5 photoelectric switch

[0043] 6 photoelectric switch mounting plate

[0044] 7 fiber socket

[0045] 11 lens fixing piece

[0046] 12 sliding lens barrel

[0047] 13 connecting piece

[0048] 14 photoelectric switch baffle

[0049] 15 screw rod sliding block

[0050] 111 first lens

[0051] 112 second lens

[0052] 113 third lens sheet

[0053] 114 fourth lens sheet DETAILED DESCRIPTION

[0054] Additional advantages and features of the disclosure will be understood from the following description of specific embodiments, and it is to be understood that the examples described herein are shown by way of illustration and not as limitations. The principles and preferred embodiments described herein can be employed in various and numerous embodiments without departing from the spirit or scope of the disclosure. Although specific embodiments have been illustrated and described herein, it will be appreciated by those of ordinary skill in the art that a variety of alternate and / or equivalent implementations can be substituted for those illustratively set forth without departing from the scope of the present disclosure. Accordingly, this disclosure is not intended to be limited to the examples described herein, but rather is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0055] It is to be understood that the above-described arrangements are only illustrative of the principles of the present disclosure. Numerous and varied embodiments can be devised in accordance with the principles of the present disclosure without departing from the spirit or scope of the disclosure. Accordingly, the above description is not intended to limit the scope of the disclosure, but is merely meant to provide examples of embodiments of the disclosure.

[0056] Terms, such as first or second, can be used to describe various components, but the components are not limited by the above terms. The above terms are used to distinguish one component from another component, for example, without departing from the scope of the concept according to the present disclosure. For example, a first component can be referred to as a second component, and likewise, a second component can be referred to as a first component, without departing from the scope of the concept according to the present disclosure.

[0057] In addition, "connected / coupled" means that one component is directly electrically connected to another component or indirectly electrically connected through another component. The singular form can include the plural form as long as the context does not clearly specifies otherwise. In addition, "comprising" or "including" or "comprising of" or "including of" used in the specification means that one or more components, steps, operations, and elements are present or have been added. The specific structure or function description of the example of the embodiment disclosed in the specification is merely exemplified to describe the example of the embodiment according to the concept, and the example of the embodiment according to the concept can be implemented in various forms, but the description is not limited to the example of the embodiment described in the specification.

[0058] According to the concept, various modifications and changes can be applied to the example of the embodiment, so that the example of the embodiment will be illustrated in the drawings and described in the specification. However, the example of the embodiment according to the concept is not limited to the specific embodiment, but includes all changes, equivalents, or substitutions included in the spirit and technical scope of the present disclosure.

[0059] It will be understood that when an element is referred to as being "coupled" or "connected" to another element, it can be directly coupled or connected to the other element or coupled or connected to the other element through a third element. In contrast, it will be understood that when an element is referred to as being "directly coupled" or "directly connected" to another element, it is not coupled or connected to the other element through a third element. Other expressions should be construed similarly.

[0060] The terms used in the present specification are merely used to describe particular embodiments and are not intended to limit the present disclosure. Singular forms are intended to include plural forms unless explicitly indicated in the context. In the present specification, it should be understood that the terms "include" or "have" indicate that there are features, numbers, steps, operations, components, parts or combinations thereof described in the specification, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0061] All terms used herein, including technical or scientific terms, have the same meanings as commonly understood by those skilled in the art unless explicitly defined otherwise. If the terms defined in a generally used dictionary have meanings different from those used in the present specification, the terms used in the present specification should be interpreted to have the meanings consistent with the context in which they are used, not the meanings in the dictionary.

[0062] Descriptions of well-known components and processing techniques can be omitted so as not to unnecessarily obscure the embodiments of the present disclosure.

[0063] Throughout the specification, the same reference numerals refer to the same elements throughout the specification. Accordingly, even if a reference numeral is not mentioned or described with reference to one drawing, it can be referred to or described with reference to another drawing. Also, even if a reference numeral is not shown in one drawing, it can be referred to or described with reference to another drawing.

[0064] In addition, the logic levels of signals can be different from or opposite to the described logic levels. For example, a signal described as having a logic "high" level can alternatively have a logic "low" level, and a signal described as having a logic "low" level can alternatively have a logic "high" level.

[0065] The embodiments of the present disclosure will be described in detail below with reference to the drawings. However, those skilled in the art can understand that, in the embodiments of the present disclosure, many technical details are presented in order to enable the reader to better understand the present disclosure. However, the technical solutions claimed by the present disclosure can be implemented even without these technical details and various changes and modifications based on the following embodiments.

[0066] The laser dazzler is a low-energy non-lethal laser weapon made of green light with the most sensitive wavelength of 510-532nm for human eyes. It is a non-killing warning equipment. Under the irradiation of laser with safe level energy, the human eyes can be blinded for a short time to achieve the effect of dispersing enemies, stopping crimes and arresting suspects. It can also damage related photoelectric observation equipment within the effective distance. In the maintenance of social order such as peacekeeping, anti-terrorism and the suppression of criminal offenses, as a non-contact and non-killing conventional equipment in antagonistic conflict, it is more and more widely used. The product has the characteristics of small size, light weight, high reliability and the like.

[0067] In order to overcome the shortcomings in the background art, the utility model provides a zooming laser dazzler, which overcomes a series of shortcomings such as short service life of light source, large divergence angle, high power consumption, low reliability and short irradiation distance in the background art, and realizes long-distance irradiation of dazzling light source.

[0068] Please refer to Figure 1 , Figure 1 The utility model provides a zooming laser dazzler, which overcomes a series of shortcomings such as short service life of light source, large divergence angle, high power consumption, low reliability and short irradiation distance in the background art, and realizes long-distance irradiation of dazzling light source.

[0069] The utility model provides a zooming laser dazzler, which overcomes a series of shortcomings such as short service life of light source, large divergence angle, high power consumption, low reliability and short irradiation distance in the background art, and realizes long-distance irradiation of dazzling light source.

[0070] The zoom laser dazzler uses a homogenizing laser, a focusing mechanism and a driving assembly to realize the dazzling effect on a long-distance target.

[0071] Please refer to Figure 2 , Figure 2 The zoom laser dazzler of the embodiment of the application provides a structure diagram of a lens assembly and a stepping motor assembly.

[0072] The driving assembly comprises a connecting piece 13, a photoelectric switch baffle 14 and a screw sliding block 15, the connecting piece 13 is installed between the fixed part of the lens barrel 12 and the stepping motor assembly 4, the photoelectric switch baffle 14 is installed on the connecting piece 13, and the screw sliding block 15 is installed between the connecting piece 13 and the stepping motor assembly 4 and is used to realize zooming of the sliding lens barrel 12.

[0073] Specifically, the stepping motor assembly 4 and the connecting piece 13 are fixedly connected through screws.

[0074] Specifically, the lens fixing piece 11 and the connecting piece 13 are fixedly connected through screws.

[0075] Specifically, the sliding lens barrel 12 comprises four spherical lenses.

[0076] In one embodiment of the utility model, the photoelectric switch baffle 14 is installed on the connecting piece 13 and moves together with the screw sliding block 15 and the lens barrel 12, and the lens barrel 12 can be a sliding lens barrel. The stepping motor assembly 4 and the lens assembly 1 are fixedly connected through screws through the connecting piece 13. The stepping motor assembly 4 comprises a motor, the motor serves as a driving device and realizes lens zooming through the screw sliding block 15, the motor drives the screw sliding block 15 to rotate, thereby causing the screw sliding block 15 to move forward and backward, the connecting piece 13 and the screws drive the lens barrel 12 to reciprocate, and long and short focal length changes of the lens are realized.

[0077] Please refer to Figure 3 , Figure 3A structure diagram of a spherical lens of a zoom laser glare meter provided by the embodiment of the application. Four spherical lenses include a first lens 111, a second lens 112, a third lens 113 and a fourth lens 114, the first lens 111 is arranged at the front end of the sliding lens barrel 12, the second lens 112 is arranged at the rear end of the first lens 111, and a preset distance is arranged between the first lens 111 and the second lens 112, the third lens 113 is arranged at the rear end of the second lens 112, and a preset distance is arranged between the second lens 112 and the third lens 113, and the fourth lens 114 is arranged at the rear end of the third lens 113, and the third lens 113 and the fourth lens 114 are glued.

[0078] Specifically, the material of the first lens 111 is H-ZF2, the material of the second lens 112 is H-K9L, the material of the third lens 113 is H-K9L, and the material of the fourth lens 114 is H-ZF2.

[0079] In an embodiment of the utility model, the focusing optical system in the lens assembly 1 is composed of four spherical lenses, the material used by the first lens 111 is H-ZF2, the material used by the second lens 112 is H-K9L, the material used by the third lens is H-K9L, the material of the fourth lens is H-ZF2, the third lens 113 and the fourth lens 114 are glued. The system realizes optical focusing by moving the second lens 112, so that the adjustment of the laser divergence angle is realized, and the laser divergence angle can be compressed to within 2 mrad.

[0080] The lens data of the zoom laser glare meter of the utility model is shown in Table 1 (corresponding to 1.6 mrad divergence angle):

[0081] Table 1:

[0082]

[0083]

[0084] In the extended light source collimation system, the relationship between the various structural parameters of the optical system and the exit beam divergence angle (half angle) θ0 is Wherein, d is the light source diameter, f' is the focal length of the system, from the above table, the maximum focal length of the system is 39.3211mm, and the light source size d=62.5μm. According to the above formula, the minimum half divergence angle θ0 after the optical system is 0.8mrad (i.e. the divergence angle 2θ0 is 1.6mrad).

[0085] Please refer to Figure 4 , Figure 4The zoom laser glarier provided by the embodiment of the application uses Tracepro to obtain a light spot distribution diagram at 2km. An imaging optical system optimization design method is to find a minimum optical dispersion spot as a target, and does not consider whether the energy distribution is uniform. The glariness optical system mainly focuses on the uniformity of the light spot energy distribution, and therefore cannot use a traditional imaging system evaluation method to evaluate the image quality. In the design process of the system, the system is compressed to a divergence angle of 2mrad or less. By using an afocal image space mode, using an RMS wavefront evaluation method, the initial structure of the lens is optimized, the system aberration is reduced, the beam uniformity of the far field light spot is improved, and the divergence angle of the optical system is compressed to 1.6mrad, and at this time, the corresponding RMS wave aberration is 0.047 waves.

[0086] In summary, the zoom laser glarier includes a lens assembly, a mounting plate, a motor mounting bracket, a stepping motor assembly, a photoelectric switch, a photoelectric switch mounting plate and a fiber socket, and has long service life, small angle and low power consumption, and long irradiation distance. The laser light source has a small light emitting point size, so that a smaller divergence angle and a longer glariness irradiation distance can be achieved, and the weight of the light source is greatly reduced, and the power consumption is also greatly reduced.

[0087] The above embodiment only illustrates the principle and effect of the utility model, and is not used to limit the utility model. Any person skilled in the art can modify or change the above embodiment without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A variable focus laser glare protector characterized by, It comprises: a mounting plate (2), and a motor mounting bracket (3) fixedly mounted on the upper part of the mounting plate (2); a lens assembly (1) fixedly mounted with the mounting plate (2); a stepping motor assembly (4) fixedly mounted on the side of the motor mounting bracket (3) away from the lens assembly (1); a driving assembly mounted on the bottom of the stepping motor assembly (4) and used for driving the stepping motor assembly (4) to move; a photoelectric switch (5) fixedly mounted on the side of the motor mounting bracket (3) through a photoelectric switch mounting plate (6).

2. A zoom laser glare producer according to claim 1, characterized in that It further comprises: an optical fiber socket (7) fixedly mounted on the motor mounting bracket (3) and mounted on the bottom of the stepping motor assembly (4).

3. A zoom laser glare producer according to claim 2, characterized in that The lens assembly (1) comprises: a lens fixing piece (11) fixedly mounted on the mounting plate (2); a sliding lens barrel (12) with a lens part protruding from the lens fixing piece (11) and a fixed part mounted in the lens fixing piece (11).

4. A zoom laser glare producer according to claim 3, characterized in that The driving assembly comprises: a connecting piece (13) mounted between the fixed part of the lens barrel (12) and the stepping motor assembly (4); a photoelectric switch baffle (14) mounted on the connecting piece (13); a screw block (15) mounted between the connecting piece (13) and the stepping motor assembly (4) and used for realizing zooming of the sliding lens barrel (12).

5. A zoom laser glare producer according to claim 4, characterized in that: The stepping motor assembly (4) and the connecting piece (13) are fixedly connected through a screw.

6. A zoom laser glare producer according to claim 4, characterized in that: The lens fixing piece (11) and the connecting piece (13) are fixedly connected through a screw.

7. A zoom laser glare producer according to claim 3, characterized in that: The sliding lens barrel (12) comprises four spherical lenses.

8. A zoom laser glare producer according to claim 7, characterized in that The four spherical lenses comprise: a first lens (111) arranged at the front end of the sliding lens barrel (12); a second lens (112) arranged at the rear end of the first lens (111) and having a preset distance from the first lens (111); a third lens (113) arranged at the rear end of the second lens (112) and having a preset distance from the second lens (112); a fourth lens (114) arranged at the rear end of the third lens (113) and glued to the third lens (113).

9. A zoom laser glare producer according to claim 8, characterized in that: The first lens (111) is made of H-ZF2, the second lens (112) is made of H-K9L, the third lens (113) is made of H-K9L, and the fourth lens (114) is made of H-ZF2.

10. A zoom laser glare producer according to claim 8, characterized in that: Optical zooming is realized by moving the second lens (112).

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