CN209893210U - Laser searchlight device and remote laser searchlight - Google Patents

Abstract

The utility model provides a laser searchlight device and remote laser searchlight relates to searchlight technical field, including laser emission subassembly, first convergent lens group, fluorescence conversion body subassembly, collimating lens group, dodging subassembly and the light beam camera lens subassembly that loops through the light path and connect. The phosphor is excited by the laser emitted by the laser emitting assembly to obtain converted illumination light, the converted illumination light is parallelly emitted through the collimating lens group in sequence and then is uniformly illuminated through the light uniformizing effect of the light uniformizing assembly, the uniform illumination light is used for realizing remote narrow-beam searchlighting illumination through the beam lens assembly, and the problem that the existing LED lamp cannot realize remote searchlighting is solved. Meanwhile, the beam lens assembly has focusing and zooming functions, so that the size of the searchlighting light spot can be adjusted, and the angle can be changed. In addition, the laser searchlighting device can also realize color temperature adjustment of illumination light through control of laser emission current and/or movement of the fluorescence conversion body component.

Description

Laser searchlight device and remote laser searchlight

Technical Field

The utility model belongs to the technical field of the searchlight and specifically relates to a laser searchlight device and remote laser searchlight are related to.

Background

In the searchlighting field, an incandescent lamp is generally adopted as an illumination light source, however, the traditional incandescent lamp is adopted as the illumination light source, so that the energy consumption is high, the environmental protection is not facilitated, and the service life of the light source is short.

At present, with the development of semiconductor light source technology, LED lamps appear in the field of vision of people and are increasingly applied to the field of searchlighting, however, the existing LED lamps cannot reach a long detection distance. In addition, the LED lamp has large light-emitting area and large light-emitting angle, and cannot realize small convergent lighting spots.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a laser searchlight device and remote laser searchlight to there is the technical problem that can't realize remote searchlight in alleviating current LED lamp.

In a first aspect, the utility model provides a laser searchlighting device, including the laser emission subassembly, first convergent lens group, fluorescence conversion body subassembly, collimating lens group, dodging subassembly and the beam lens subassembly that loop through the light path connection.

Further, the dodging assembly comprises a second converging lens group and a dodging light guide pipe, and the collimating lens group, the second converging lens group, the dodging light guide pipe and the beam lens assembly are sequentially connected through a light path.

Further, the dodging component comprises a fly eye lens group, a third converging lens group and a field lens which are sequentially connected through an optical path.

Further, the laser searchlighting device further comprises a filter assembly, and the filter assembly is arranged on a light path between the fluorescence conversion body assembly and the beam lens assembly.

Further, the filter assembly includes a dichroic filter.

Furthermore, the laser searchlighting device further comprises a moving assembly, and the moving assembly is used for driving the fluorescence conversion body assembly to rotate.

Furthermore, the laser searchlighting device further comprises a laser adjusting component, and the laser adjusting component is used for adjusting the excitation current of the laser emitting component.

Further, the laser emitting assembly comprises a laser light source including a laser diode.

Further, the laser diode is a blue laser diode.

In a second aspect, an embodiment of the present invention provides a remote laser searchlight, including a housing and the laser searchlight apparatus as described above.

The utility model provides a laser searchlight device and remote laser searchlight, wherein, this laser searchlight device is including the laser emission subassembly, first convergent lens group, fluorescence conversion body subassembly, collimating lens group, dodging subassembly and the light beam camera lens subassembly that loop through the light path connection. Therefore, the embodiment of the utility model provides a technical scheme, at first the fluorophor through the laser excitation fluorescence conversion body subassembly with the laser emission subassembly transmission obtains the illumination light of conversion, then the illumination light is incited to dodging subassembly after the parallel emergence of collimating lens group in proper order, obtain even illumination light behind the dodging effect of dodging subassembly, even illumination light incides to beam lens subassembly, and utilize beam lens subassembly to realize remote, the searchlighting illumination of narrow light beam, the problem that current LED lamp exists can't realize remote searchlighting has been alleviated. Meanwhile, the beam lens assembly has focusing and zooming functions, so that the size of the searchlighting light spot can be adjusted, and the angle can be changed. In addition, the laser searchlighting device can also realize color temperature adjustment of illumination light through control of laser emission current and/or movement of the fluorescence conversion body component.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a block diagram of a laser searchlighting apparatus according to an embodiment of the present invention;

fig. 2 is a first schematic view of a laser searchlighting apparatus according to an embodiment of the present invention;

fig. 3 is a second schematic view of a laser searchlighting apparatus according to an embodiment of the present invention;

fig. 4 is a first schematic view of a remote laser searchlight according to an embodiment of the present invention;

fig. 5 is a second schematic view of a remote laser searchlight according to an embodiment of the present invention.

Icon: 10-a laser emitting assembly; 20-a first converging lens group; 30-a fluorescence converter assembly; 40-a collimating lens group; 50-a light homogenizing assembly; 60-a beam lens assembly; 1-a laser beam; 2-a converging lens; 3-a phosphor; 4-a collimating lens; 5-color separation sheet; 6-light homogenizing light guide pipe; 7-a beam lens; 8-a second converging lens group; 51-compound eye lens group; 52-a third converging lens group; 53-field lens; 200-shell.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

At present, the existing LED lamp cannot reach a long detection distance. In addition, the LED lamp has large light-emitting area and large light-emitting angle, and cannot realize small convergent lighting spots. Based on this, the embodiment of the utility model provides a pair of laser searchlight device and remote laser searchlight can alleviate current LED lamp and have the technical problem that can't realize remote searchlight, can realize remote searchlight, has energy-concerving and environment-protective, long service life's advantage simultaneously.

In order to facilitate understanding of the present embodiment, a laser searchlight apparatus disclosed in the embodiments of the present invention is first described in detail.

The first embodiment is as follows:

as shown in fig. 1 and 2, the present invention provides a laser searchlighting apparatus, which includes a laser emitting assembly 10, a first focusing lens assembly 20, a fluorescence converter assembly 30, a collimating lens assembly 40, a dodging assembly 50 and a beam lens assembly 60. The laser emitting assembly 10, the first converging lens assembly 20, the fluorescence conversion body assembly 30, the collimating lens assembly 40, the dodging assembly 50 and the beam lens assembly 60 are sequentially connected through an optical path.

The laser emitting assembly 10 is configured to generate a laser beam with a preset wavelength and emit the laser beam with the preset wavelength to the first focusing lens group 20. Specifically, the laser beam 1 is a blue laser beam.

The first focusing lens group 20 is configured to focus a laser beam with a predetermined wavelength and then to emit the laser beam to the fluorescence converter assembly 30.

The fluorescence conversion body assembly 30 is configured to receive the laser beam with the preset wavelength, which is converged by the first converging lens group 20, and to excite the laser beam with the preset wavelength under the action of the converged laser beam, so as to obtain divergent illumination light (i.e., wavelength-converted light), which is incident to the collimating lens group 40.

And a collimating lens group 40 for converting the divergent illumination light into parallel illumination light, which is incident to the dodging assembly 50.

The dodging assembly 50 is used for converging and dodging the parallel illumination light to obtain uniform illumination light, and the uniform illumination light is incident to the beam lens assembly 60.

And the beam lens assembly 60 is used for emitting uniform illumination light at a preset angle to realize remote narrow-beam searchlighting illumination. It should be noted that the beam lens assembly 60 is also used for focusing and zooming, so as to realize adjustable size and variable angle of the searchlight spot of the emergent illumination light.

The embodiment of the utility model provides a laser searchlighting device is including the laser emission subassembly, first convergent lens group, fluorescence conversion body subassembly, collimating lens group, dodging subassembly and the beam lens subassembly that loop through the light path and connect. The laser emitted by the laser emitting assembly excites the phosphor of the fluorescence conversion body assembly to obtain converted illumination light, then the illumination light is emitted in parallel through the collimating lens assembly in sequence and then is incident to the dodging assembly, uniform illumination light is obtained after the dodging action of the dodging assembly, the uniform illumination light is incident to the beam lens assembly, and finally, the beam lens assembly is utilized to realize remote and narrow-beam searchlighting illumination, so that the problem that the existing LED lamp cannot realize remote searchlighting is solved. Meanwhile, the beam lens assembly has focusing and zooming functions, so that the size of a searchlighting light spot of emergent illumination light can be adjusted, and the angle can be changed.

Further, the laser emitting assembly 10 includes a laser light source, wherein the laser light source includes a laser diode. The laser diode has smaller size, which is beneficial to the miniaturization of the device.

Further, the fluorescence converter assembly includes a phosphor 3.

Further, the phosphor has a cylindrical shape.

Specifically, the laser diode is a blue laser diode, and the phosphor is a yellow phosphor. Blue laser emitted by the blue laser diode is converged by the first converging lens group to excite the yellow phosphor to generate white illumination light (white light for short).

The fluorescent conversion body component can realize transmission of a part of blue laser, a part of blue laser is excited into yellow light by the fluorescent body, and the blue light and the yellow light are mixed to obtain white light for illumination.

Further, the first condensing lens group includes a plurality of condensing lenses 2.

Further, the beam lens assembly includes a plurality of beam lenses 7.

Further, the collimating lens group includes a plurality of collimating lenses 4.

It should be noted that the number of the converging lenses in the first converging lens group, the number of the beam lenses in the beam lens assembly, and the number of the collimating lenses in the collimating lens group may be selected according to actual needs.

Specifically, the first focusing lens group generally includes 2 to 3 focusing lenses; the beam lens assembly typically includes 3 beam lenses.

Further, the dodging assembly 50 includes a second converging lens group 8 and a dodging light pipe 6 (a dodging pipe for short, also called a dodging rod), and the collimating lens group, the second converging lens group, the dodging light pipe and the beam lens assembly are connected in sequence through an optical path. The second converging lens group 8 is used for converging the parallel incident illumination light and enabling the parallel incident illumination light to enter the dodging light guide pipe 6, and the dodging light guide pipe conducts dodging to obtain uniform illumination light.

Further, the laser searchlighting device further comprises a filter assembly, and the filter assembly is arranged on the light path between the fluorescence conversion body assembly and the beam lens assembly.

Note that the filter assembly is provided at an arbitrary position on the optical path between the fluorescence conversion body assembly and the beam lens assembly.

Further, the filter assembly includes a color separation plate 5 (also called a color filter) for filtering the illumination light to obtain a single color of searchlight light.

Further, the color separation sheet is a color filter.

Furthermore, the color separation sheet is a circular sheet and can rotate 360 degrees.

Specifically, the color filter includes four types, namely a white color filter, a blue color filter, a red color filter and a green color filter, each single color filter accounts for one fourth, namely, the single color filter corresponds to a rotation range of 90 degrees and rotates to a range of a certain single color filter, and then the searchlighting light corresponding to the color of the single color filter can be obtained.

In view of the sheet cost (area size) of the color separation sheet and the imaging effect (for example, the imaging effect is affected when disposed on the optical path between the dodging light guide 6 and the beam lens assembly, and therefore the effect of the position of the color separation sheet on the imaging effect needs to be considered), further, the color separation sheet is disposed on the optical path between the second condensing lens group 8 and the dodging light guide 6, and at the position of the condensing focus of the second condensing lens group (i.e., at the position shown in fig. 2).

Further, the laser searchlighting apparatus further includes a moving assembly (not shown in the figure), and the moving assembly is configured to drive the fluorescence converter assembly to move so as to change an excitation area of the fluorescence converter assembly, thereby adjusting a ratio of the laser light passing through the fluorescence converter assembly to the excited fluorescence light, so that a color temperature of the emitted illumination light is changed.

Specifically, the moving assembly is a rotating mechanism, and the rotating mechanism is used for driving the fluorescent conversion body assembly to rotate. The rotating mechanism comprises a motor and a pivot rod, wherein one end of the pivot rod is connected with the motor, and the other end of the pivot rod is connected with the fluorescent conversion body assembly.

In other embodiments, the laser searchlighting device may further include a laser adjusting component, and the laser adjusting component is used for adjusting the excitation current of the laser emitting component and also changing the color temperature of the output illumination light.

The color temperature of the illumination light is adjusted by controlling the laser emission current and/or the movement of the fluorescence conversion body component.

The embodiment of the utility model provides a laser searchlighting device combines through the mode that utilizes laser excitation phosphor powder and the even light of dodging to utilize the light beam camera lens to realize remotely, the searchlighting illumination of narrow light beam, the focusing that utilizes the light beam camera lens simultaneously realizes that the colour temperature is adjustable with the function of zooming, the changeable even searchlighting illumination of facula size.

Example two:

as shown in fig. 3, on the basis of the first embodiment, the embodiment of the present invention provides another laser searchlighting device, which includes a laser emitting component, a first converging lens group, a fluorescence conversion body component, a collimating lens group, a dodging component and a beam lens component, which are sequentially connected through an optical path, and the difference from the first embodiment is that the dodging component of the laser searchlighting device includes a fly-eye lens group 51, a third converging lens group 52 and a field lens 53, which are sequentially connected through an optical path. The compound eye system composed of the compound eye lens group 51, the third converging lens group 52 and the field lens 53 is another way of realizing the dodging by the dodging component of the laser searchlighting device in the embodiment, that is, the dodging component of the embodiment realizes the dodging by the compound eye system.

Specifically, the blue laser light emitted by the laser emitting assembly is converged onto the phosphor 3 of the fluorescence conversion body assembly through the converging lens 2 of the first converging lens group, and the yellow phosphor of the fluorescence conversion body assembly is excited to obtain wavelength conversion light (white illumination light), the excited illumination light passes through the collimating lens 4 of the collimating lens group to obtain parallel light and is incident on the fly eye lens group 51, and the parallel light sequentially passes through the third converging lens group 52 and the field lens 53 to obtain uniform illumination light on the back focal plane of the beam lens assembly (i.e., a plane indicated by a vertical line parallel to the field lens behind the field lens 53 in fig. 3), and then the uniform illumination light is irradiated to a required detection position through the beam lens at a small angle and a narrow beam.

It should be noted that, in the present embodiment, a color separation sheet (filter assembly) is provided on the optical path between the field lens 53 and the beam lens assembly, and specifically, the color separation sheet is provided at the position of the back focal plane of the beam lens assembly, that is, at the position shown by the vertical line parallel to the field lens behind the field lens 53 in fig. 3.

The embodiment of the utility model provides a laser searchlighting device combines through utilizing laser excitation phosphor powder and the even light mode of compound eye to utilize the light beam camera lens to realize remotely, the searchlighting illumination of narrow light beam utilizes the focusing of light beam camera lens and zooms the function simultaneously and realizes that the colour temperature is adjustable, the changeable even searchlighting illumination of facula size.

Example three:

as shown in fig. 4 and 5, an embodiment of the present invention further provides a remote laser searchlight, which includes a housing 200 and the laser searchlight apparatus as described above, where the housing is used to protect the laser searchlight apparatus. Specifically, the laser searchlighting device is arranged in the shell.

The remote laser searchlight that this embodiment provided includes the casing and passes through laser emission subassembly, first convergent lens group, fluorescence conversion body subassembly, collimating lens group, dodging subassembly and the beam lens subassembly that light path connects in proper order, and laser emission subassembly, first convergent lens group, fluorescence conversion body subassembly, collimating lens group, dodging subassembly and beam lens subassembly set up in the casing. Through adopting green light source, pollution-free, long service life, through utilizing laser beam's strong penetrating power, combine together laser excitation fluorophor and dodging mode to utilize light beam lens subassembly to realize long distance, narrow beam searchlighting illumination, accessible current control and fluorophor's rotation realize the colour temperature adjustment simultaneously.

The embodiment of the utility model provides a remote laser searchlight has the same technical characteristic with foretell laser searchlight device, also can solve corresponding technical problem, gains corresponding technological effect.

The embodiment of the utility model provides a remote laser searchlight, its theory of realization and the technological effect who produces are the same with the embodiment of laser searchlight device, and for brief description, remote laser searchlight embodiment part does not mention the part, can refer to the corresponding content in the embodiment of aforementioned laser searchlight device.

In all examples shown and described herein, any particular value should be construed as merely exemplary, and not as a limitation, and thus other examples of example embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. A laser searchlighting device is characterized by comprising a laser emitting component, a first converging lens group, a fluorescence conversion body component, a collimating lens group, a dodging component and a beam lens component which are sequentially connected through a light path.

2. The laser searchlighting device of claim 1, wherein the dodging assembly comprises a second converging lens group and a dodging light pipe, and the collimating lens group, the second converging lens group, the dodging light pipe and the beam lens assembly are sequentially connected through an optical path.

3. The laser searchlighting device of claim 1, wherein the dodging assembly comprises a fly eye lens group, a third converging lens group and a field lens which are connected in sequence through an optical path.

4. The laser searchlighting apparatus according to claim 1, further comprising a filter assembly disposed on an optical path between the fluorescence conversion body assembly and the beam lens assembly.

5. The laser searchlighting apparatus of claim 4, wherein the filter assembly includes a dichroic filter.

6. The laser searchlighting apparatus according to claim 1, further comprising a moving assembly, wherein the moving assembly is configured to move the fluorescence converter assembly to change an excitation area of the fluorescence converter assembly, so as to adjust a ratio of the laser light transmitted through the fluorescence converter assembly to the excited fluorescence light, so that a color temperature of the emitted illumination light is changed.

7. The laser searchlighting device of claim 1, further comprising a laser adjustment assembly for adjusting an excitation current of the laser emitting assembly.

8. The laser searchlighting device of claim 1, wherein the laser emitting assembly includes a laser light source including a laser diode.

9. The laser searchlighting device of claim 8, wherein the laser diode is a blue laser diode.

10. A remote laser searchlight comprising a housing according to any one of claims 1 to 9 for protecting the laser searchlight.

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