CN219694004U - Multi-wavelength laser coaxial indicator - Google Patents
Multi-wavelength laser coaxial indicator Download PDFInfo
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- CN219694004U CN219694004U CN202321349635.3U CN202321349635U CN219694004U CN 219694004 U CN219694004 U CN 219694004U CN 202321349635 U CN202321349635 U CN 202321349635U CN 219694004 U CN219694004 U CN 219694004U
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Abstract
The utility model relates to the field of laser indication, in particular to a multi-wavelength laser coaxial indicator, which comprises a laser indication module, wherein the laser indication module comprises a first laser, a second laser and a first dichroic mirror, the first laser emits first light rays with first wavelength, the second laser emits second light rays with second wavelength, the first light rays are visible light and the second light rays are invisible light, or the first light rays are invisible light and the second light rays are visible light; the first bicolor mirror is positioned on the light path of the first light and the light path of the second light, transmits the first light and reflects the second light, and the transmitted first light and the reflected second light are coaxial and in the same direction. The utility model has the effect of emitting visible light and invisible light from the same optical axis.
Description
Technical Field
The utility model relates to the field of laser indication, in particular to a multi-wavelength laser coaxial indicator.
Background
In the police duty process, firearms are important police instruments, and besides the criminal suspects are directly disabled, the fire-fighting police fire-fighting equipment also provides a deterrent effect to force the criminal suspects to stop crimes.
In order to achieve a more remarkable deterrent effect, the current police firearms are usually provided with visible light laser indicators; in view of the requirement of the stealth action, an additional set of invisible laser indicators is required to be configured.
Because the light paths of the two laser indicators are not the same, the indicated trajectory has slight difference, in actual actions, at least one indicator deviates from the actual trajectory, and in long-distance shooting, the emission angle deviates by only one close position, and the error of the shot point can reach a plurality of positions, which is very fatal in actions such as rescuing people. Therefore, the related art laser pointer has a problem of indicating deviation.
Disclosure of Invention
In order to reduce indication errors of a multi-wavelength laser indicator in the related art, the utility model provides a multi-wavelength laser coaxial indicator.
The utility model provides a multi-wavelength laser coaxial indicator which adopts the following technical scheme:
the multi-wavelength laser coaxial indicator comprises a laser indicating module, wherein the laser indicating module comprises a first laser, a second laser and a double-color mirror, the first laser emits first light with a first wavelength, the second laser emits second light with a second wavelength, the first light is visible light and the second light is invisible light, or the first light is invisible light and the second light is visible light; the first bicolor mirror is positioned on the light path of the first light and the light path of the second light, and is used for transmitting the first light and reflecting the second light, and the transmitted first light and the reflected second light are coaxial and in the same direction.
By adopting the technical scheme, the visible light and the invisible light can be modulated to the same optical axis for output, and the precision of the multi-wavelength laser coaxial indicator for aiming the firearm is improved.
Preferably, the laser indicating module further includes a first reflecting mirror, the first laser and the second laser are arranged side by side and have parallel optical axes, and the first reflecting mirror is arranged on the optical axis of the second laser and is used for reflecting the second light to the first dichroic mirror.
By adopting the technical scheme, the first laser and the second laser are arranged side by side, so that the volume of the multi-wavelength laser coaxial indicator is more miniaturized; the first laser and the second laser are arranged in parallel with the optical axis, and the reflector and the bicolor mirror are arranged in parallel, so that the modulation difficulty is reduced.
Preferably, the outgoing light path of the first laser and the outgoing light path of the second laser directly intersect in the first dichroic mirror, an included angle formed by the incident direction of the first light and the incident direction of the second light is smaller than 30 °, and the included angle is bisected by the first dichroic mirror.
By adopting the technical scheme, the included angle between the first laser and the optical path of the second laser is smaller, and the laser indicating module is only composed of a dichroic mirror, a first laser emitter and a second laser emitter, so that the volume of the multi-wavelength laser coaxial indicator is reduced.
Preferably, the laser indicating module further comprises a first collimating lens and a second collimating lens, the first collimating lens is arranged at the light outlet of the first laser, and the second collimating lens is arranged at the light outlet of the second laser.
By adopting the technical scheme, the inclined scattering angle of the first light ray and the second light ray is smaller, and the effective indication distance is farther.
Preferably, both sides of the first dichroic mirror are coated with an anti-reflection film, and the anti-reflection film is used for enhancing the penetrating effect of the first light.
By adopting the technical scheme, the emergent light quality of the first light is better.
Preferably, a surface of the first bicolor mirror, which receives the second light, is plated with a high-reflection film, and the high-reflection film is used for enhancing the reflection effect of the second light.
By adopting the technical scheme, the emergent light quality of the second light is better.
Preferably, the device further comprises a laser ranging module, and the ranging direction of the laser ranging module and the optical axis of the first light ray are arranged in the same direction.
Through adopting above-mentioned technical scheme, combining the table that corresponds the rifle type, can carry out the distance adjustment and correction correspondingly, promote the accuracy that this device was regarded as the accessory of aiming greatly.
Preferably, the device further comprises a power supply module and a control module, wherein the laser indication module is electrically connected with the power supply module and the control module, and the control module is used for controlling the independent starting or the common starting of the first laser and the second laser.
By adopting the technical scheme, in the actual use process of the device, each laser source can be started or closed according to the actual situation, and when warning deterrence or rapid shooting is needed, the laser source of visible light is started, so that a better visual effect is provided; when the hidden sniping is needed, a laser source of invisible light is started, and a matched vision tool is used, so that a surprise target can be avoided.
Preferably, the control module further comprises a gyroscope assembly, the gyroscope assembly comprises an angle sensor and an acceleration sensor, the angle sensor and the acceleration sensor are used for measuring the vibration angle, and when the angle change rate or the acceleration of the gyroscope assembly exceeds a preset range, the control module controls the laser indication module to start.
By adopting the technical scheme, under the condition that the manual starting indicator is not reached in some emergency conditions, such as short-distance war, the gyroscope assembly detects the violent movement of the firearm along with the progress of the gun drawing action, and the laser indicating module is automatically started to assist shooting.
Preferably, the laser indicating module further comprises a third laser and a second dichroic mirror, wherein the third laser emits third light with a third wavelength, and the third wavelength is not equal to the first wavelength and the second wavelength; the second dichroic mirror is arranged on the light-emitting path of the first dichroic mirror, transmits the first light and the second light, reflects the third light, and transmits the first light, the second light and the reflected third light coaxially and equidirectionally.
By adopting the technical scheme, the device can modulate more lights with different wavelengths on the same optical axis, thereby meeting the requirements of different use scenes. For example, under the condition of better weather conditions, the first ray of the red laser is used, so that the concealment of the action is maintained to a certain extent; the second ray of the green laser is used under the condition of poor weather or air quality, so that the aiming accuracy is ensured; the third light is set to be infrared laser and used for concealing sniping.
In summary, the present utility model includes at least one of the following beneficial technical effects:
1. modulating lasers with different wavelengths to the same optical axis for output, and reducing the indication deviation of the indicator;
2. the device has small volume, is suitable for various firearms by adding few elements on the basis of two laser transmitters;
3. the light source has the combination of multiple wavelengths, can use visible light alone, use invisible light alone or use visible light and invisible light simultaneously, and can add light rays with more wavelengths.
Drawings
FIG. 1 is a schematic diagram of a laser pointer module according to the related art of the present utility model;
FIG. 2 is a functional block diagram of a multi-wavelength laser coaxial indicator according to embodiment 1 of the present utility model;
fig. 3 is a schematic structural diagram of a laser indicating module according to embodiment 1 of the present utility model;
fig. 4 is a schematic structural diagram of a laser indicating module according to embodiment 2 of the present utility model;
fig. 5 is a schematic structural diagram of a laser indicating module according to embodiment 3 of the present utility model;
fig. 6 is a schematic structural diagram of a laser indicating module according to embodiment 4 of the present utility model;
reference numerals illustrate:
11. a first laser; 12. a second laser; 13. a third laser; 14. a fourth laser;
21. a first dichroic mirror; 22. a second dichroic mirror; 23. a third dichroic mirror;
31. a first collimating mirror; 32. a second collimating mirror; 33. a third collimating mirror; 34. a fourth collimating mirror;
41. a first mirror; 42. a second mirror; 43. and a third mirror.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-6.
Referring to fig. 1, the structure of the laser indicating module capable of emitting visible light and invisible light simultaneously at present is as follows: the first laser 11 and the second laser 12 are arranged side by side, a first collimator 31 is provided at the light exit of the first laser 11, and a second collimator 32 is provided at the light exit of the second laser 12. The first light emitted by the first laser 11 is collimated by the first collimator 31, and the second light emitted by the second laser 12 is collimated by the second collimator 32, with the optical axes of the first laser 11 and the second laser 12 being arranged in parallel.
Even if the first laser 11 and the second laser 12 are arranged closely enough, so long as they are not coaxial, the spot eventually formed on the target must have a deviation, which is inconvenient for aiming.
There is also a sighting device that manually calibrates according to a specific design distance so that the first light ray and the second light ray meet at a preset target distance, and the difficulty of calibration is increased although the problem of sighting errors is solved.
The embodiment of the utility model discloses a multi-wavelength laser coaxial indicator.
Example 1
Referring to fig. 2 and 3, the multi-wavelength laser coaxial indicator comprises a laser indicating module, a laser ranging module, a power module and a control module which are electrically connected with each other.
The laser indicating module comprises a first laser 11 and a second laser 12, wherein the first laser 11 and the second laser 12 are arranged side by side and are parallel in optical axis, the first laser 11 emits first light with a first wavelength, the second laser 12 emits second light with a second wavelength, and the first light is visible light and the second light is invisible light.
The laser indicating module further includes a first collimating mirror 31 and a second collimating mirror 32, where the first collimating mirror 31 is disposed at the light outlet of the first laser 11, and the second collimating mirror 32 is disposed at the light outlet of the second laser 12.
The laser indicator module further comprises a first dichroic mirror 21 which is arranged at an angle of 45 degrees with the optical axis of the first light, wherein the first dichroic mirror 21 is positioned on the optical path of the first light and on the optical path of the second light, the first dichroic mirror 21 transmits the first light and reflects the second light, the transmitted first light and the reflected second light are coaxial and in the same direction, both sides of the first dichroic mirror 21 are plated with antireflection films aiming at the first wavelength, and one side of the first dichroic mirror 21 receiving the second light is plated with a high reflection film aiming at the second wavelength.
The laser pointer module further comprises a first mirror 41, the first mirror 41 being arranged on the optical axis of the second laser 12 and parallel to said first dichroic mirror 21, the first mirror 41 being arranged to reflect the second light onto the first dichroic mirror 21.
The control module comprises a gyroscope assembly including an angle sensor and an acceleration sensor for measuring the magnitude of the vibration angle. The control module allows the user to manually control the individual or co-actuation of the first and second lasers 11, 12, and may also automatically control the actuation of the laser pointer module in case the measured data of the gyroscope assembly exceeds a preset value.
The implementation principle of the embodiment 1 is as follows:
the first laser 11 is started to emit a first light ray, and the first light ray is transmitted through the first dichroic mirror 21 after being regulated by the first collimating mirror 31 and propagates along the original optical axis; the second laser 12 is started to emit a second light ray, and after being adjusted by the second collimating mirror 32, the second light ray is reflected by the first reflecting mirror 41 and the first dichroic mirror 21, and propagates coaxially with the first light ray.
The starting of the first laser 11 and the second laser 12 is controlled by a control module, usually manually controlled by a user, and one of the starting is selected according to the actual situation; in some emergency situations, the gyroscope assembly measures that the angular velocity or acceleration of the device exceeds a preset range, and the control module controls the first laser 11 to be started, so as to provide aiming assistance for a user.
After the adjustment of the first collimating mirror 31 or the second collimating mirror 32, the divergence angle of the first light ray and the second light ray is reduced; the anti-reflection film improves the penetrating effect of the first light and reduces the light loss of the first light in the process of penetrating the first dichroic mirror 21; the high reflection film enhances the reflection effect of the first dichroic mirror 21 on the second light, and reduces the light divergence during reflection. The above arrangement ensures the indication accuracy of the multi-wavelength laser coaxial indicator over a longer distance.
The present embodiment achieves the technical effects of the present utility model by providing the first reflecting mirror 41 and the first dichroic mirror 21, and performing only fine tuning based on the related art, reducing the improvement cost and the production threshold.
Example 2
Referring to fig. 4, the present embodiment is different from embodiment 1 in that the laser indicating module of the present embodiment includes a first laser 11, a second laser 12, a first collimator 31, a second collimator 32, and a first dichroic mirror 21.
The first collimator is disposed at the light outlet of the first laser 11, and the second collimator 32 is disposed at the light outlet of the second laser 12.
The first light and the second light are converged on the first dichroic mirror 21 and respectively irradiated on two opposite sides of the first dichroic mirror 21; the angle between the incident directions of the first light ray and the second light ray is 20 °, and the first dichroic mirror 21 is disposed on the bisector of the angle.
The implementation principle of the embodiment 2 is as follows:
the first light emitted by the first laser 11 is transmitted by the first dichroic mirror 21 after being adjusted by the first collimating mirror 31; the second light emitted by the second laser 12 is aligned by the second collimator 32, and then irradiates the outgoing surface of the first light on the first dichroic mirror 21, and after being reflected, the first light and the second light are coaxially and co-directionally propagated.
In another embodiment of the present utility model, the included angle between the first light and the second light is set to be 18 °, and the value of the included angle can be flexibly adjusted according to the actual product requirement, so as to obtain a smaller product size.
Example 3
Referring to fig. 5, the present embodiment is different from embodiment 1 in that the laser light indicating module of the present embodiment further includes a third laser 13, a third collimator mirror 33, and a second reflecting mirror 42:
the third laser 13 emits a third light beam with a third wavelength, and the third collimator 33 is disposed at the light outlet of the third laser 13.
The first light is visible red light, the second light is visible green light, and the third light is infrared light.
The first dichroic mirror 21 and the second dichroic mirror 22 are disposed in parallel on the optical axis of the first light, and the first dichroic mirror 21 has a transmission effect on the first wavelength and a reflection effect on the second wavelength; the second dichroic mirror 22 has a transmissive effect for the first wavelength, the second wavelength, and a reflective effect for the third wavelength.
The optical axes of the third light rays of the second light rays are parallel to each other and perpendicular to the optical axis of the first light rays, the first light rays and the second light rays are intersected on the first dichroic mirror 21, and the incident angle of the first light rays and the second light rays is halved by the first dichroic mirror 21; the third light ray and the first light ray meet at the second dichroic mirror 22, and an incident angle of the first light ray and the third light ray is divided by the second dichroic mirror 22.
The implementation principle of the embodiment 3 is as follows:
the first light is adjusted by the first collimating mirror 31, and then transmitted through the first dichroic mirror 21 and the second dichroic mirror 22 to propagate along the original optical axis;
the second light ray is adjusted by the second collimating mirror 32, reflected by the first dichroic mirror 21, and co-axially and co-directionally transmitted with the first light ray, and then transmitted through the second dichroic mirror 22, and continuously transmitted along the optical axis of the first light ray;
the third light is collimated by the third collimator lens 33, reflected by the second dichroic mirror 22, and then co-axially and co-directionally propagates with the first light and the second light.
Through the control module, can selectively start one or more in first laser source, second laser source and the third laser source, under the condition that air quality and weather condition are all good, use first light to assist to aim, the reliability of aiming is guaranteed to overcast and rainy weather use second light, select the third light when concealing the action, cooperate corresponding sighting telescope like polarizing tactics eyepiece to aim.
Example 4
Referring to fig. 6, the present embodiment is different from embodiment 1 in that: the laser indicating module of the present embodiment further includes a third laser 13, a fourth laser 14, a third collimator lens 33, a fourth collimator lens 34, a second dichroic mirror 22, a third dichroic mirror 23, a second reflecting mirror 42, and a third reflecting mirror 43.
The third laser 13 emits third light at a third wavelength and the fourth laser 14 emits fourth light at a fourth wavelength. The third collimator 33 is disposed at the light outlet of the third laser 13, and the fourth laser 14 is disposed at the light outlet of the fourth laser 14.
The first wavelength, the second wavelength, the third wavelength and the fourth wavelength are different from each other, and at least one visible light and one invisible light are included.
The first laser 11, the second laser 12, the third laser 13 and the fourth laser 14 are arranged side by side with the optical axes parallel.
The first dichroic mirror 21 has a transmission effect on the first wavelength, a reflection effect on the second wavelength, and is disposed on the optical axis of the first light;
the second dichroic mirror 22 having a transmission effect for the third wavelength and a reflection effect for the fourth wavelength is provided on the optical axis of the third laser 13;
the third dichroic mirror 23 has a transmission effect for the first wavelength and the second wavelength, has a reflection effect for the third wavelength and the fourth wavelength, is disposed on the optical axis of the first light, and is located on a side of the first dichroic mirror 21 away from the first laser 11.
The first reflecting mirror 41 is disposed on the optical axis of the second laser 12 and parallel to the first dichroic mirror 21, and is used for reflecting the second light to the first dichroic mirror 21;
the second reflecting mirror 42 is disposed on the optical axis of the fourth laser 14 and parallel to the second dichroic mirror 22, and is used for reflecting the fourth light to the second dichroic mirror 22;
the third reflecting mirror 43 is disposed on the optical axis of the third laser 13 and parallel to the third dichroic mirror 23, and is configured to reflect the third light and the fourth light modulated by the second dichroic mirror 22 to the third dichroic mirror 23.
The implementation principle of the embodiment 4 is as follows:
after the first light beam emitted by the first laser 11 is adjusted by the first collimating mirror 31, the first light beam is sequentially transmitted by the first dichroic mirror 21 and the second dichroic mirror 22, and still propagates along the original optical axis;
after the second light emitted by the second laser 12 is adjusted by the second collimating mirror 32, the second light is reflected to the first dichroic mirror 21 by the first reflecting mirror 41, and the second light is reflected by the first dichroic mirror 21 and then coaxially and co-propagates with the first light, and is transmitted by the third dichroic mirror 23, and continuously coaxially and co-propagates with the first light;
the third light beam emitted by the third laser 13 is transmitted by the second dichroic mirror 22 after being aligned by the third collimator 33, is then reflected by the third reflecting mirror 43 and the third dichroic mirror 23 in sequence, and then propagates coaxially and in the same direction as the first light beam;
after the fourth light beam emitted by the fourth laser 14 is aligned by the fourth collimator lens 34, the fourth light beam is reflected by the second reflector 42, the second dichroic mirror 22, the third reflector 43, and the third dichroic mirror 23 in sequence, and then propagates coaxially and in the same direction as the first light beam.
Finally, the laser indicates the first light that the module output. The second light, the third light and the fourth light are all transmitted along the same optical axis, and one or more of the light and the fourth light are controlled by the control module to be mixed.
In another embodiment of the utility model, the first light is not directly emitted by the first laser 11, but is a mixed light modulated by light of various wavelengths in the manner described in embodiment 1. That is, the present utility model can modulate laser light of more wavelengths in a similar manner, and the kind of wavelength of the mixed light is not limited.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (10)
1. A multi-wavelength laser coaxial indicator, characterized by: the laser light detection device comprises a laser light indication module, wherein the laser light indication module comprises a first laser (11), a second laser (12) and a first dichroic mirror (21), the first laser (11) emits first light rays with first wavelengths, the second laser (12) emits second light rays with second wavelengths, and the first light rays are visible light and the second light rays are invisible light, or the first light rays are invisible light and the second light rays are visible light; the first dichroic mirror (21) is located on the optical path of the first light and on the optical path of the second light, the first dichroic mirror (21) transmits the first light and reflects the second light, and the transmitted first light and the reflected second light are coaxial and in the same direction.
2. The multi-wavelength laser coaxial indicator according to claim 1, wherein: the laser indicating module further comprises a first reflecting mirror (41), the first laser (11) and the second laser (12) are arranged side by side and are parallel in optical axis, and the first reflecting mirror (41) is arranged on the optical axis of the second laser (12) and is used for reflecting the second light to the first dichroic mirror (21).
3. The multi-wavelength laser coaxial indicator according to claim 1, wherein: the emergent light path of the first laser (11) and the emergent light path of the second laser (12) are directly intersected at the first dichroic mirror (21), an included angle formed by the incident direction of the first light and the incident direction of the second light is smaller than 30 degrees, and the included angle is bisected by the first dichroic mirror (21).
4. A multi-wavelength laser coaxial indicator according to any of claims 2 or 3, characterized in that: the laser indicating module further comprises a first collimating mirror (31) and a second collimating mirror (32), wherein the first collimating mirror (31) is arranged at the light outlet of the first laser (11), and the second collimating mirror (32) is arranged at the light outlet of the second laser (12).
5. The multi-wavelength laser coaxial indicator according to claim 4, wherein: both sides of the first dichroic mirror (21) are plated with an antireflection film for enhancing the penetrating effect of the first light.
6. The multi-wavelength laser coaxial indicator according to claim 4, wherein: one surface of the first dichroic mirror (21) receiving the second light is plated with a high-reflection film, and the high-reflection film is used for enhancing the reflection effect of the second light.
7. The multi-wavelength laser coaxial indicator according to claim 1, wherein: the multi-wavelength laser coaxial indicator further comprises a laser ranging module, and the ranging direction of the laser ranging module and the optical axis of the first light are arranged in the same direction.
8. The multi-wavelength laser coaxial indicator according to claim 1, wherein: the multi-wavelength laser coaxial indicator further comprises a power supply module and a control module, wherein the laser indicating module is electrically connected with the power supply module and the control module, and the control module is used for controlling the independent starting or the common starting of the first laser (11) and the second laser (12).
9. The multi-wavelength laser coaxial indicator according to claim 8, wherein: the control module further comprises a gyroscope assembly, the gyroscope assembly comprises an angle sensor and an acceleration sensor, the angle sensor and the acceleration sensor are used for measuring the vibration angle, and when the angle change rate or the acceleration of the gyroscope assembly exceeds a preset range, the control module controls the laser indication module to start.
10. The multi-wavelength laser coaxial indicator according to claim 1, wherein: the laser indicating module further comprises a third laser (13) and a second dichroic mirror (22), wherein the third laser (13) emits third light with a third wavelength, and the third wavelength is not equal to the first wavelength and the second wavelength; the second dichroic mirror (22) is disposed on the light-emitting path of the first dichroic mirror (21), the second dichroic mirror (22) transmits the first light and the second light, and reflects the third light, and the first light, the second light and the reflected third light after being transmitted by the second dichroic mirror (22) are coaxial and in the same direction.
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| CN202321349635.3U CN219694004U (en) | 2023-05-30 | 2023-05-30 | Multi-wavelength laser coaxial indicator |
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| CN202321349635.3U CN219694004U (en) | 2023-05-30 | 2023-05-30 | Multi-wavelength laser coaxial indicator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117784414A (en) * | 2024-02-28 | 2024-03-29 | 北京萨诺光电科技发展有限公司 | Visible light calibrator, laser device and calibration method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117784414A (en) * | 2024-02-28 | 2024-03-29 | 北京萨诺光电科技发展有限公司 | Visible light calibrator, laser device and calibration method |
| CN117784414B (en) * | 2024-02-28 | 2024-06-07 | 北京萨诺光电科技发展有限公司 | Visible light calibrator, laser device and calibration method |
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