CN215908920U - Large-zoom spotlight - Google Patents
Large-zoom spotlight Download PDFInfo
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- CN215908920U CN215908920U CN202121162009.4U CN202121162009U CN215908920U CN 215908920 U CN215908920 U CN 215908920U CN 202121162009 U CN202121162009 U CN 202121162009U CN 215908920 U CN215908920 U CN 215908920U
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- light source
- lens
- light
- front cover
- screw
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Abstract
The utility model discloses a large-zoom spotlight which comprises a hollow light source cavity, wherein the hollow light source cavity consists of a rear cover, a front cover, an upper cover and a lower cover, a light-emitting component is arranged in the light source cavity, and the light-emitting component comprises a light source of which the light-emitting direction faces the front cover; a lens assembly is arranged between the light source and the front cover, and comprises a lens which can move in a direction close to or far away from the light source; a distance measuring sensor fixed on the front cover is arranged in the light source cavity; the lens assembly comprises a lens arranged on a guide rod and a screw rod pair, and the guide rod and the screw rod pair are fixed on the side plate through a support; and a nut of the screw pair is connected with the lens, and a screw of the screw pair is connected with a motor fixed on the bracket. The utility model can zoom the emergent light and adjust the focal length according to the distance between the irradiated area and the spotlight, thereby obtaining the required irradiation area in different irradiation areas.
Description
Technical Field
The utility model relates to the technical field of lamps, in particular to a large-zoom spotlight.
Background
The spotlight is one of stage lamps and lanterns, is one of the lamps and lanterns commonly used of building the stage effect, and in use, spotlight can change the illumination area according to the change of scene, makes the distance of illumination area and spotlight change, and the change of distance can cause under same focus, and the illumination area can change, and in the prior art, can not carry out automatically regulated according to the distance to the focus.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the technical scheme adopted by the utility model is as follows:
a large focus spotlight characterized by: the LED lamp comprises a hollow light source cavity consisting of a rear cover, a front cover, an upper cover and a lower cover, wherein a light-emitting component is arranged in the light source cavity and comprises a light source with the light-emitting direction facing the front cover;
a lens assembly is arranged between the light source and the front cover, and comprises a lens which can move in a direction close to or far away from the light source;
a distance measuring sensor fixed on the front cover is arranged in the light source cavity;
a control panel is arranged between the light-emitting component and the rear cover;
the distance measuring sensor and the lens assembly are respectively electrically connected with the control panel.
Preferably, the light-emitting component comprises a light source fixed on a heat dissipation block, a heat dissipation fan is arranged at one end of the heat dissipation block, which is back to the light source, and the air inlet end of the heat dissipation fan is close to the control board; and the side plate is provided with an air inlet and outlet hole at the position close to the light-emitting component.
Preferably, the electrical elements and the electrical contacts of the control board are coated with conformal coating.
Preferably, the lens assembly comprises a lens arranged on a guide rod and a screw rod pair, and the guide rod and the screw rod pair are fixed on the side plate through a support; and a nut of the screw pair is connected with the lens, and a screw of the screw pair is connected with a motor fixed on the bracket.
Preferably, the screw pair is a ball screw pair, and the motor is a stepping motor with an absolute position encoder.
Preferably, the lens is a glass fresnel lens.
Preferably, a handle is arranged on the side plate.
Compared with the prior art, the utility model has the beneficial effects that:
1. the emergent light can be zoomed;
2. the focal length can be adjusted according to the distance between the irradiated area and the spotlight, so that the required irradiation area can be obtained in different irradiation areas.
Drawings
FIG. 1 is an exploded view of the structure of the present invention;
FIG. 2 is a schematic view of a lens assembly;
fig. 3 is a sectional view a-a of fig. 2.
Wherein: a light emitting assembly 10; a light source 11; a heat dissipating block 12; a heat radiation fan 13; a lens assembly 20; a lens 21; a guide rod 22; a bracket 23; a motor 24; a screw pair 25; a control board 30; a rear cover 40; a front cover 50; a distance measuring sensor 51; an upper cover 60; a lower cover 70; a handle 80; a side plate 90; and an air inlet and outlet hole 91.
Detailed Description
To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," "upper," "lower," "front," "rear," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The utility model will be further described with reference to the accompanying drawings and the detailed description below:
as shown in fig. 1, 2 and 3, a large focus spotlight comprises a hollow light source cavity composed of a back cover 40, a front cover 50, an upper cover 60 and a lower cover 70, wherein a light emitting assembly 10 is arranged in the light source cavity, and the light emitting assembly 10 comprises a light source 11 with a light emitting direction facing the front cover 50;
a lens assembly 20 is arranged between the light source 11 and the front cover 50, the lens assembly 20 comprises a lens 21, and the lens 21 can move in a direction close to or far away from the light source 11;
a distance measuring sensor 51 fixed on the front cover 50 is arranged in the light source cavity;
a control panel 30 is arranged between the light emitting assembly 10 and the rear cover 40;
the distance measuring sensor 51 and the lens assembly 20 are electrically connected to the control board 30.
In this embodiment, the light-emitting angle of the light source 11 is 70 degrees, and the distance between the lens 21 and the light source 11 is adjusted to refract the light in the lens 21, so as to obtain a light-emitting angle of 5 to 65 degrees, thereby achieving the effects of zooming and condensing.
In stage application, the spotlight adjusts the irradiation area according to the change of the scene, so that the distance between the irradiation area and the spotlight changes, and the change of the distance causes the irradiation area to change under the same light-emitting angle. In this embodiment, the distance between the irradiation area and the spotlight can be fed back to the control board 30 by the distance measuring sensor 51, and the control board 30 can change the focal length by adjusting the distance between the lens 21 and the light source 11, so that the required irradiation area can be obtained in different irradiation areas.
Further, the light emitting assembly 10 includes a light source 11 fixed on a heat dissipation block 12, a heat dissipation fan 13 is disposed at one end of the heat dissipation block 12, which is back to the light source 11, and an air inlet end of the heat dissipation fan 13 is close to the control board 30; the side plate 90 is provided with an air inlet and outlet hole 91 at a position close to the light emitting assembly 10.
In this embodiment, the heat dissipation fan 13 sucks air outside the light source chamber from the air inlet and outlet hole 91, blows the air after passing through the control board 30 toward the heat dissipation block 12, and then discharges the air from the light source chamber through the air inlet and outlet hole 91. Thereby transferring heat conducted from the light source 11 to the heat dissipation block 12 to maintain the temperature of the light source 11 at a proper temperature.
Further, the electrical components and the electrical contacts of the control board 30 are coated with conformal coating.
The three-proofing paint is a paint with a special formula and is used for protecting a circuit board and related equipment from being corroded by the environment. The three-proofing paint has good high and low temperature resistance; after being cured, the coating becomes a layer of transparent protective film which has excellent insulating, damp-proof, anti-creeping, shockproof, dustproof, anti-corrosion, anti-aging, corona-resistant and other performances.
In the working process of the spotlight, the spotlight is influenced by heat dissipation airflow, and the electric elements and the electric contacts (welding points, pressure contacts and the like) on the controller 20 are inevitably influenced by dust and dampness, so that the stability of the controller 20 is deteriorated, and the influence of dust, humidity and other environments can be avoided by coating three-proofing paint on the electric elements and the electric contacts, so that the stability is improved.
Further, as shown in fig. 1, 2 and 3, the lens assembly 20 includes a lens 21 disposed on a guide rod 22 and a screw rod pair 25, and the guide rod 22 and the screw rod pair 25 are fixed on a side plate 90 through a bracket 23; the nut of the screw rod pair 25 is connected with the lens 21, and the screw rod of the screw rod pair 25 is connected with the motor 24 fixed on the bracket 23.
In this embodiment, the motor 24 drives the screw rod to rotate, so that the nut drives the lens 21 to move along the guide rod 22.
Further, in order to simplify the structure and ensure the operation stability, the screw pair 25 is a ball screw pair, and the motor 24 is a stepping motor with an absolute position encoder.
Further, in order to reduce the structural size and improve the light transmittance, the lens 21 is a fresnel lens made of glass.
Further, for convenience of installation and carrying, the side plate 90 is provided with a handle 80.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the protective scope of the present patent claims.
Claims (7)
1. A large focus spotlight characterized by: the LED lamp comprises a hollow light source cavity consisting of a rear cover, a front cover, an upper cover and a lower cover, wherein a light-emitting component is arranged in the light source cavity and comprises a light source with the light-emitting direction facing the front cover;
a lens assembly is arranged between the light source and the front cover, and comprises a lens which can move in a direction close to or far away from the light source;
a distance measuring sensor fixed on the front cover is arranged in the light source cavity;
a control panel is arranged between the light-emitting component and the rear cover;
the distance measuring sensor and the lens assembly are respectively electrically connected with the control panel.
2. A large focus spotlight according to claim 1, characterized in that: the light-emitting component comprises a light source fixed on a heat dissipation block, a heat dissipation fan is arranged at one end of the heat dissipation block, which is back to the light source, and the air inlet end of the heat dissipation fan is close to the control board; and the side plate is provided with an air inlet and outlet hole at the position close to the light-emitting component.
3. A large focus spotlight according to claim 1, characterized in that: and the electrical element and the electrical contact of the control board are coated with three-proofing paint.
4. A large focus spotlight according to claim 1, characterized in that: the lens assembly comprises a lens arranged on a guide rod and a screw rod pair, and the guide rod and the screw rod pair are fixed on the side plate through a support; and a nut of the screw pair is connected with the lens, and a screw of the screw pair is connected with a motor fixed on the bracket.
5. A large focus spotlight according to claim 4, characterized in that: the screw pair is a ball screw pair, and the motor is a stepping motor with an absolute position encoder.
6. A large focus spotlight according to claim 1, characterized in that: the lens is a Fresnel lens made of glass materials.
7. A large focus spotlight according to claim 1, characterized in that: the side plate is provided with a handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121162009.4U CN215908920U (en) | 2021-05-27 | 2021-05-27 | Large-zoom spotlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121162009.4U CN215908920U (en) | 2021-05-27 | 2021-05-27 | Large-zoom spotlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215908920U true CN215908920U (en) | 2022-02-25 |
Family
ID=80287362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121162009.4U Active CN215908920U (en) | 2021-05-27 | 2021-05-27 | Large-zoom spotlight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215908920U (en) |
-
2021
- 2021-05-27 CN CN202121162009.4U patent/CN215908920U/en active Active
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