CN216113851U - Lens assembly, light guide mechanism and searchlight - Google Patents

Abstract

The utility model relates to the technical field of lenses, and provides a lens assembly, a light guide mechanism and a searchlight, wherein the lens assembly comprises: the collimating lens comprises a first surface and a second surface which are opposite, the first surface is used for allowing light emitted by the light source to enter, and the second surface is used for allowing the light of the light source entering the collimating lens to exit in a parallel light beam; and the reflecting mirror is positioned on one side of the second surface of the collimating lens and used for receiving the parallel light beams emitted by the second surface and reflecting and emitting the parallel light beams to an external irradiation surface. The lens assembly provided by the utility model collimates the light emitted by the light source through the collimating lens, converts divergent light emitted by the light source into parallel light beams to be emitted, and can improve the irradiation distance of the light source; the collimated parallel light beams are reflected by the reflector and then emitted out, so that the transmission direction of light is changed, and dazzling caused by direct irradiation of the light source to human eyes can be avoided.

Description

Lens assembly, light guide mechanism and searchlight

Technical Field

The utility model belongs to the technical field of lenses, and particularly relates to a lens assembly, a light guide mechanism and a searchlight.

Background

The searchlight is a device which has a powerful light source and a concave mirror capable of intensively projecting light in a specific direction and is used for remote illumination and searching.

The size of a light spot irradiated on an object cannot be adjusted when the existing searchlight is used for long-distance illumination, and one method for adjusting the size of the light spot is to adjust the size of the light spot by adjusting the distance between the lamp and the irradiated object, so that the method is troublesome to use, can be adjusted only by needing a larger space, cannot adjust the light spot with the required size in a small space, and influences the long-distance illumination effect; meanwhile, the conventional searchlight usually focuses light emitted from a light source and then directly projects the light, so that the light can cause dazzling when the light irradiates human eyes.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a lens assembly to solve the technical problem that the existing searchlight is dazzling to human eyes.

In order to achieve the purpose, the utility model adopts the technical scheme that: there is provided a lens assembly comprising: the collimating lens comprises a first surface and a second surface which are opposite, the first surface is used for enabling light emitted by the light source to be incident, and the second surface is used for enabling the light of the light source incident into the collimating lens to be emitted in a parallel light beam; and the reflecting mirror is positioned on one side of the second surface of the collimating lens and is used for receiving the parallel light beams emitted by the second surface and reflecting and emitting the parallel light beams to an external irradiation surface.

Furthermore, the reflector is a right-angle prism and comprises an incident surface, a reflecting surface and an emergent surface, an included angle between the reflecting surface and the incident surface is a lens inclination angle, the incident surface and the emergent surface are mutually vertical, parallel light beams emitted by the second surface vertically irradiate the incident surface, and are reflected by the reflecting surface and then emitted from the emergent surface to an external irradiation surface.

Further, the inclination angle of the lens is in the range of 48-50 °.

The utility model also provides a light guide mechanism which comprises a first light guide assembly, wherein the first light guide assembly comprises a plurality of lens assemblies, and the plurality of lenses of the first light guide assembly are annularly distributed at intervals to form a first annular body.

Furthermore, the light guide mechanism further comprises a second light guide assembly, the second light guide assembly comprises a plurality of lens assemblies, and a plurality of lenses of the second light guide assembly are annularly distributed at intervals to form a second annular body.

Further, the first ring and the second ring are concentric.

Further, the lens tilt angle of the first light guide assembly is smaller than the lens tilt angle of the second light guide assembly.

Further, the lens tilt angles of adjacent lenses of the first light guide assembly are different.

Further, the lens tilt angles of adjacent lenses of the second light guiding assembly are different.

The utility model also provides a searchlight which comprises a lampshade, the light guide mechanism and a plurality of light sources, wherein each light source is positioned on one side of the first surface of each collimating lens, and the light guide mechanism is arranged in the lampshade.

The lens assembly provided by the utility model collimates the light emitted by the light source through the collimating lens, converts divergent light emitted by the light source into parallel light beams to be emitted, and can improve the irradiation distance of the light source; the collimated parallel light beams are reflected by the reflector and then emitted out, so that the transmission direction of light is changed, and dazzling caused by direct irradiation of the light source to human eyes can be avoided.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic structural diagram of a lens assembly provided by an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a light guide mechanism according to an embodiment of the present invention;

FIG. 3 is a partial schematic view of a searchlight according to an embodiment of the utility model;

fig. 4 is a schematic diagram of light transmission of the lens assembly according to the embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1-a lens assembly; 11-a collimating lens; 111-a first side; 112-a second face; 12-a mirror; 121-an incident face; 122-a reflective surface; 123-an exit face; 2-a light guide mechanism; 21-a first light guiding assembly; 22-a second light guiding assembly; 3-a lampshade; 4-light source.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1, the lens package 1 according to the present invention will now be described, the lens package 1 comprising: a collimating lens 11, including a first surface 111 and a second surface 112 opposite to each other, the first surface 111 being used for inputting the light emitted from the light source 4, the second surface 112 being used for outputting the light of the light source 4 inputted into the collimating lens 11 as a parallel light beam; and the reflector 12 is located on one side of the second surface 112 of the collimating lens 11 and is used for receiving the parallel light beams emitted by the second surface 112 and reflecting and emitting the parallel light beams to an external irradiation surface. In specific implementation, referring to fig. 4, the collimating lens 11 may be a plano-convex lens, the light source 4 is located on the first surface 111 of the plano-convex lens, and the center of the light source 4 coincides with the focal point of the plano-convex lens, light emitted by the light source 4 is emitted into the first surface 111 of the plano-convex lens, and then is emitted in parallel from the second surface 112 of the plano-convex lens to the reflector 12, and the reflector 12 reflects the parallel light beam and then emits the parallel light beam to the external irradiation surface.

According to the lens component 1 provided by the utility model, light emitted by the light source 4 is collimated through the collimating lens 11, divergent light emitted by the light source 4 is converted into parallel beams to be emitted, and the irradiation distance of the light source 4 can be increased; the collimated parallel light beams are reflected by the reflector 12 and then emitted, so that the transmission direction of light is changed, and dazzling caused by the fact that the light source 4 directly irradiates human eyes can be avoided.

In an embodiment, as a specific implementation manner of the lens assembly 1 provided by the present invention, the reflector 12 is a right-angle prism, and includes an incident surface 121, a reflecting surface 122 and an exit surface 123, an included angle between the reflecting surface 122 and the incident surface 121 is a lens tilt angle, the incident surface 121 and the exit surface 123 are perpendicular to each other, a parallel light beam emitted from the second surface 112 perpendicularly irradiates the incident surface 121, and is reflected by the reflecting surface 122 and then emits from the exit surface 123 to an external irradiation surface. When the right-angle prism is used, some optical films can be plated, such as aluminum plating, silver plating and the like, different film systems have different reflection effects, the right-angle prism has a larger contact area and typical angles of 45 degrees and 90 degrees, and compared with the common reflector 12, the right-angle prism is easier to mount and has better stability and strength to mechanical stress. In specific implementation, the prisms with different lens inclination angles can reflect light rays with different angles, and the farther the irradiation distance of the light source 4 is, the smaller the required lens inclination angle is (approaching to 45 °); the required light spot is larger, the required inclination angle of the lens is larger, and the right-angle prisms with different inclination angles of the lens can be selected according to actual requirements. Preferably, when the irradiation distance is designed to be 1M, the inclination angle of the lens is in the range of 48 to 50 °.

The present invention further provides a light guide mechanism 2, please refer to fig. 2, which includes a first light guide assembly 21, wherein the first light guide assembly 21 includes a plurality of lens assemblies 1 as described above, and the plurality of lens assemblies 1 of the first light guide assembly 21 are annularly distributed at intervals to form a first annular body. The light guide mechanism 2 provided by the embodiment of the present invention has the lens assembly 1 provided by any one of the above embodiments, and therefore, all the beneficial effects of the lens assembly 1 provided by any one of the above embodiments are achieved, which is not repeated herein. The plurality of lens assemblies 1 are annularly distributed at intervals, so that the plurality of lens assemblies 1 of the first light guide assembly 21 can form light spots, and the illumination brightness is improved. In specific implementation, different control modes may be selected according to actual needs, for example, the switches of the lens assemblies 1 of the first light guide assembly 21 may be individually controlled, and when the required light brightness and intensity are small, only one of the lens assemblies 1 may be selected to transmit the light of the light source 4; when higher light brightness and intensity are needed, a plurality of lens assemblies 1 can be selected to transmit light of a plurality of corresponding light sources 4, so that the brightness is improved; it can be understood that, when a plurality of lens assemblies 1 are selected for transmission, a plurality of adjacent lens assemblies 1 may be selected, or a plurality of lens assemblies 1 which are arranged at intervals and distributed annularly may be selected, and the selection may be specifically performed according to actually required brightness of light and shape and size of light spots; when higher light brightness and intensity are required, all lens assemblies 1 in the first light guide assembly 21 may be turned on all together.

In an embodiment, the light guide mechanism 2 further includes a second light guide assembly 22, the second light guide assembly 22 includes a plurality of lens assemblies 1, and the plurality of lens assemblies 1 of the second light guide assembly 22 are annularly and alternately distributed to form a second annular body. In specific implementation, different control modes may be selected according to actual needs, for example, the switches of the total internal reflection lenses 1 of the second light guide assembly 22 may be individually controlled, and when the required light brightness and intensity are small, only one of the total internal reflection lenses 1 may be selected to transmit the light of the light source 4; when higher light brightness and intensity are needed, a plurality of total internal reflection lenses 1 can be selected to transmit light of a plurality of corresponding light sources 4, so that the brightness is improved; it can be understood that, when a plurality of total internal reflection lenses 1 are selected for transmission, a plurality of adjacent total internal reflection lenses 1 may be selected, or a plurality of total internal reflection lenses 1 arranged at intervals and distributed annularly may be selected, and the selection may be specifically performed according to actually required brightness of light and shape and size of light spots; all of the tir lenses 1 in the second light guide assembly 22 may be turned on when higher light brightness and intensity are desired. During the use, can set up second leaded light subassembly 22 in the outer lane of first leaded light subassembly 21, can control the switch of first leaded light subassembly 21 and/or second leaded light subassembly 22 according to actual demand, obtain different facula effects. For example, when the first light guide assembly 21 and the second light guide assembly 22 are simultaneously turned on, the diameter of the superposed two light spots is increased. Preferably, the second ring-shaped body and the first ring-shaped body are identical in structure and concentric. In this way, the light spots of the first light guide assembly 21 and the second light guide assembly 22 can be superimposed on each other.

In one embodiment, the lens tilt angle of the first light guide assembly 21 is smaller than the lens tilt angle of the second light guide assembly 22. Because the larger the inclination angle of the lens is, the larger the light spot is, the inclination angle of the lens of the first light guide assembly 21 is smaller than that of the lens of the second light guide assembly 22, and the light spot of the second light guide assembly 2 is larger than that of the first light guide assembly 2, when a small light spot is needed, the first light guide assembly 2 can be controlled to be opened, the second light guide assembly 2 can be controlled to be closed, and the small light spot is formed through the first light guide assembly 2; when a large light spot is needed, the first light guide assembly 2 can be controlled to be closed, the second light guide assembly 2 is controlled to be opened, and the large light spot is formed through the second light guide assembly 2; when a larger and brighter light spot is required, the first light guide assembly 2 and the second light guide assembly 2 can be simultaneously opened, and the larger light spot is simultaneously formed through the first light guide assembly 2 and the second light guide assembly 2.

In an embodiment, the lens inclination angles of adjacent lens components 1 of the first light guiding assembly 21 are different. In specific implementation, the lens assemblies 1 of the first light guide assembly 21 may have two different lens inclination angles, and the lens inclination angles between adjacent lens assemblies 1 are different, and when the light guide assembly is used, the switches of the lens assemblies 1 with different lens inclination angles may be controlled to change the light spot of the stroke of the first light guide assembly 21, for example, the lens assemblies 1 with the same lens inclination angle in the first light guide assembly 21 are all turned on to obtain two different light spots, and when the lens assemblies 1 with different lens inclination angles in the first light guide assembly 21 are all turned on, the light spot with higher brightness may be obtained. It is understood that the lens assembly 1 of the first light guiding assembly 21 may have a plurality of different lens inclination angles, and the lens assemblies 1 with the same lens inclination angle may be controlled by a switch, so that the lens assemblies 1 with different lens inclination angles are selected to be turned on according to actual needs to obtain the required light spots.

In an embodiment, the lens inclination angles of adjacent lens components 1 of the second light guiding assembly 22 are different. In specific implementation, the lens assemblies 1 of the second light guide assembly 22 may also have two different lens inclination angles, and the lens inclination angles between adjacent lens assemblies 1 are different, and when the light guide assembly is used, the switches of the lens assemblies 1 with different lens inclination angles may be controlled to change the light spots of the stroke of the second light guide assembly 22, for example, the lens assemblies 1 with the same lens inclination angle in the second light guide assembly 22 are all turned on to obtain two different light spots, and when the lens assemblies 1 with different lens inclination angles in the second light guide assembly 22 are all turned on, the light spots with higher brightness may be obtained. It is understood that the lens assembly 1 of the second light guiding assembly 22 may have a plurality of different lens inclination angles, and the lens assemblies 1 with the same lens inclination angle may be controlled by a switch, so that the lens assemblies 1 with different lens inclination angles are selected to be turned on according to actual needs to obtain the required light spots.

The present invention further provides a searchlight, referring to fig. 3, including a lampshade 3, the light guide mechanism 2 as described above, and a plurality of light sources 4, wherein each light source 4 is located at one side of the first surface of each collimating lens 11, and the lens assembly 2 is disposed in the lampshade 3. The searchlight provided by the embodiment of the utility model has the light guide mechanism 2 provided by any one of the embodiments, so that all the beneficial effects of the light guide mechanism 2 provided by any one of the embodiments are achieved, and the details are not repeated herein. In specific implementation, the rear cover of the lamp housing 3 may be made of a high-reflectivity material, such as aluminum plating, so as to reflect the light emitted from the reflector 12, thereby improving the overall light extraction efficiency.

The searchlight provided by the utility model has the advantages that the light emitted by the light source 4 is collimated through the collimating lens 11, the divergent light emitted by the light source 4 is converted into parallel beams to be emitted, and the irradiation distance of the light source 4 can be increased; the collimated parallel light beams are reflected by the reflector 12 and then emitted, so that the transmission direction of light is changed, and dazzling caused by the fact that the light source 4 directly irradiates human eyes can be avoided.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A lens assembly, comprising:

the collimating lens comprises a first surface and a second surface which are opposite, the first surface is used for enabling light emitted by the light source to be incident, and the second surface is used for enabling the light of the light source incident into the collimating lens to be emitted in a parallel light beam;

and the reflecting mirror is positioned on one side of the second surface of the collimating lens and is used for receiving the parallel light beams emitted by the second surface and reflecting and emitting the parallel light beams to an external irradiation surface.

2. The lens assembly of claim 1, wherein the reflector is a right-angle prism and includes an incident surface, a reflecting surface and an exit surface, an included angle between the reflecting surface and the incident surface is a lens tilt angle, the incident surface and the exit surface are perpendicular to each other, the parallel light beam emitted from the second surface is perpendicularly emitted to the incident surface, and is reflected by the reflecting surface and then emitted from the exit surface to an external irradiation surface.

3. The lens assembly of claim 2, wherein the lens tilt angle is in a range of 48 ° -50 °.

4. A light guide mechanism, comprising a first light guide assembly, wherein the first light guide assembly comprises a plurality of lens assemblies according to any one of claims 1 to 3, and the plurality of lenses of the first light guide assembly are annularly distributed at intervals to form a first annular body.

5. The light guide mechanism of claim 4 further comprising a second light guide assembly, wherein the second light guide assembly comprises a plurality of the lens assemblies, and wherein the plurality of lenses of the second light guide assembly are annularly spaced to form a second annular body.

6. The light guide mechanism of claim 5, wherein the first annular body and the second annular body are concentric.

7. The light guide mechanism of claim 5 wherein the lens tilt angle of the first light guide assembly is less than the lens tilt angle of the second light guide assembly.

8. The light guide mechanism of claim 4 wherein the lens tilt angles of adjacent lenses of the first light guide assembly are different.

9. A light guide mechanism according to claim 5 wherein the lens tilt angles of adjacent lenses of the second light guide assembly are different.

10. A floodlight comprising a housing, a light guide of any of claims 4 to 9, and a plurality of light sources, each light source being located on a side of the first face of each collimating lens, the light guide being disposed within the housing.

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