CN210740311U - Variable-focus projection lamp - Google Patents
Variable-focus projection lamp Download PDFInfo
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- CN210740311U CN210740311U CN201921644627.5U CN201921644627U CN210740311U CN 210740311 U CN210740311 U CN 210740311U CN 201921644627 U CN201921644627 U CN 201921644627U CN 210740311 U CN210740311 U CN 210740311U
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- cover plate
- light source
- lamp
- variable focus
- radiator
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Abstract
The utility model discloses a projecting lamp can zoom, this projecting lamp can zoom includes light source, radiator, focusing membrane and lighting fixture, and the light source includes lens and lamp plate, and lens are installed in the lamp plate, and the radiator is equipped with the fin, and the play plain noodles of light source is located to the focusing membrane, and the backlight face of light source is installed in the radiator, and the radiator is installed in the lighting fixture, and this projecting lamp can zoom compares in the machinery of traditional secondary lens up-and-down motion and zooms simple structure compactness, light in weight, and the reliability is high.
Description
Technical Field
The utility model relates to the field of lighting technology, concretely relates to projecting lamp can zoom.
Background
With the rapid development of LED technology and the wide application in the field of lighting, LED lighting has begun to differentiate, and subdivision board differentiation such as museums, hotels, restaurants, offices and the like has been performed in the application field. LED zooms are applied to LED flashlight trade at first, along with the promotion of people's aesthetic requirements, and more for beautifying the illumination the field of using the technique of zooming, lie in stage lighting field, museum's illumination field and art gallery illumination field especially.
The traditional zooming technology is mechanical zooming, the size of a light spot and the illumination intensity are adjusted by changing the parallel distance between a lens and a light source, but the lamp adopting the mechanical zooming technology has the problems of large size, easy occurrence of mechanical failure, lamp failure and the like due to the fact that the lamp has a mechanical motion structure, and therefore the variable-focus projection lamp with light size and high reliability is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a projecting lamp can zoom, this projecting lamp volume can zoom is light and handy, the reliability is high.
The technical scheme is as follows:
variable focus projecting lamp, including light source, radiator, focusing membrane and lighting fixture, the light source includes lens and lamp plate, lens install in the lamp plate, the radiator is equipped with the fin, the play plain noodles of light source is located to the focusing membrane, the backlight face of light source is installed in the radiator, the radiator is installed in the lighting fixture.
The light source comprises a lens and a lamp panel, the LED optical lens has high light efficiency, can be assembled and combined with the lamp panel according to user requirements, and is strong in maintainability, the focusing film is of a sheet structure, the molecular arrangement conditions in the focusing film are different, the light transmittance of the focusing film is changed therewith, the light beam penetrating through the focusing film presents a corresponding zooming effect therewith, the focusing film is arranged on a light emitting surface of the light source, the original structure of the lamp is not affected, the backlight surface of the light source is installed on a radiator, the radiator radiates heat for the lamp, fins in the radiator are used for increasing the heat radiation area and enhancing the heat transfer capacity of equipment, the radiator is installed on a lamp bracket, and the lamp bracket is fixed on an installation surface.
The variable-focus projection lamp further comprises a controller, and the controller is connected with the focusing film. The focusing film is connected with the controller, the controller receives a control signal, the controller obtains a corresponding voltage/current signal according to the control signal and outputs a corresponding voltage/current to the focusing film through the voltage/current signal, the focusing film receives the corresponding voltage/current, the driving current passing through the focusing film is changed according to the voltage/current, molecules in the focusing film are enabled to present a corresponding arrangement state, the light transmittance of the focusing film is changed, light penetrating through the focusing film forms a corresponding light beam and a corresponding light spot, and therefore a corresponding light beam zooming effect is achieved.
The fins form a curved surface on the radiating surface of the radiator. The fins are used for increasing the heat dissipation area and enhancing the heat transfer capacity of the equipment, and the heat dissipation surfaces are formed into curved surfaces by the fins, so that the heat dissipation area can be increased, and meanwhile, the outer surface of the lamp is more attractive.
The lamp holder includes support and two knobs, support edge long limit direction evenly distributed has the screw hole, the screw hole is equipped with two at least, the support both ends are equipped with the cantilever arm respectively, the cantilever arm is articulated with the both ends of radiator respectively through two knobs. The bracket is fixed on the mounting surface, and the extending arm is hinged with the two ends of the radiator through the knob, so that the irradiation angle of the lamp can be freely adjusted, and the lighting requirements of different angles can be met.
The surface of the knob is correspondingly provided with scales, and an angle value is correspondingly arranged beside the scales. The surface of the knob is correspondingly provided with scales and angle values, so that the irradiation angle of the lamp can be adjusted conveniently according to the illumination requirement, and meanwhile, the adjustment of the irradiation angle is consistent.
The light-emitting surface of the focusing film is provided with a cover plate, the middle part of the cover plate is hollow, and a frame structure is formed to cover the light-emitting surface of the focusing film. The cover plate is used for fixing the focusing film on the light source, and the structure which can be conveniently detached is used, so that the lamp can be conveniently overhauled and internal parts can be conveniently replaced when the lamp breaks down.
The cover plate is characterized in that two ends of the cover plate are respectively provided with a baffle, the length of the cover plate is the same as that of the radiator, the width of the cover plate is the same as that of the radiator, the cover plate is abutted between the two knobs through the baffles at the two ends, and a closed structure is formed between the cover plate and the radiator. The cover plate and the radiator form a closed structure, a focusing film serving as a sheet structure is fixed between the cover plate and the light source, the cover plate is convenient to overhaul and replace, and the cover plate is abutted between the two knobs through the baffles at the two ends, so that the structure of the lamp is kept compact.
And a protection plate is arranged between the cover plate and the focusing film. The guard plate can play the effect dustproof, waterproof, damp proof gas, prevent simultaneously that instrument, human etc. from contacting lamps and lanterns inside, avoid the emergence of electric shock phenomenon, when what the both sides structure of focusing membrane adopted was the material that has safeguard function, focusing membrane fungible guard plate plays the guard action to lamps and lanterns.
The controller is connected with the light source. The light source includes lens and lamp plate, and LED optical lens light efficiency is high, can combine with the lamp plate equipment according to user's demand, and maintainability is strong, and the light source is connected in the controller, and the controller accessible receives input signal and controls the light source, and control content includes the light and shade and the hue of light source.
It should be noted that:
the focusing film is an integrally formed sandwich structure formed by compounding a liquid crystal film between two layers of glass or two layers of films and gluing the liquid crystal film at high temperature and high pressure, and the arrangement condition of liquid crystal molecules between the two layers of glass or the two layers of films is changed along with the change of current passing through the focusing film, so that the light transmittance of the focusing film is controlled, and the light penetrates through the focusing film to form a corresponding zooming effect.
Drawings
Fig. 1 is an exploded schematic view of a variable focus projector according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a variable focus projector according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a focusing film of the variable focus projector according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of the variable focus projector according to the embodiment of the present invention in a zoom state;
fig. 5 is a schematic structural diagram of the variable focus projector in the zoom state according to the embodiment of the present invention.
Description of reference numerals:
1. a variable focus projector; 10. a light source; 20. a focusing film; 30. a controller; 50. a heat sink; 60. a cover plate; 70. a protection plate; 80. light spots; 101. a lens; 102. a lamp panel; 401. a support; 402. a knob; 403. a reach arm; 501. and (4) ribs.
Detailed Description
The following describes embodiments of the present invention in detail.
As shown in fig. 1 to 2, the present embodiment discloses a variable focus projector 1, which includes a light source 10, a controller 30, a focusing film 20, a lamp holder, a heat sink 50, a cover plate 60, and a protection plate 70.
The light source 10, which is used for emitting light beams, includes a lens 101 and a lamp panel 102, and the lens 101 is mounted on the lamp panel 102.
The focusing film 20 is used for transmitting light beams emitted by the light source 10 and receiving voltage/current sent by the controller 30, the focusing film 20 is of a sheet structure and is installed in the lamp without influencing the original structure, the existing dry-method laminated glass production process is utilized, a liquid crystal film and a film are clamped between two layers of glass or two layers of films and are integrally formed after high-temperature and high-pressure gluing, an interlayer between two conductive layers of the focusing film 20 mainly comprises polymeric resin and liquid crystal molecules (PDLC), and different internal structures are formed according to the proportion of glue and the liquid crystal molecules (PDLC).
The focusing film 20 utilizes the optical properties of liquid crystal molecules (PDLC) to realize the electro-optic function of glass/film. When the driving current passing through the focusing film 20 is the maximum, the liquid crystal molecules (PDLC) between the two layers of glass or films are in a regular arrangement state, and light can freely penetrate through the PDLC; as the driving current passing through the focusing film 20 is gradually reduced, the arrangement of liquid crystal molecules (PDLC) between the two layers of glass or films is gradually irregular, and the light penetration is gradually blocked; until the focusing film 20 is not electrified, the liquid crystal molecules (PDLC) between the two glass layers or the two films are in an irregular dispersion state, and light cannot pass through.
And a controller 30 for receiving the control signal and converting the control signal into a corresponding voltage/current signal, through which the voltage/current is supplied to the focusing film 20.
The heat radiator 50 is provided with the fins 501, the fins 501 enable the heat radiating surface of the heat radiator 50 to form a curved surface, the heat radiating area is increased, the heat transfer capacity of equipment is enhanced, and meanwhile the outer surface of the lamp is more attractive.
The light emitting surface of the light source 10 is provided with a focusing film 20, the controller 30 is installed on the focusing film 20, the light emitting surface of the focusing film 20 is provided with a protective plate 70, the light source 10 is installed on the heat sink 50, the middle part of the cover plate 60 is hollow, a frame structure is formed to cover the light emitting surface of the focusing film 20, the length of the cover plate 60 is the same as that of the heat sink 50, the width of the cover plate 60 is the same as that of the heat sink 50, the cover plate 60 abuts against between the two knobs 402 through baffles at two ends to form a closed structure with the heat sink 50, the focusing film 20 and the protective plate 60 which are sheet structures are fixed between the cover plate 60 and the light source 10, the lamp holder comprises a support 401 and two knobs 402, three threaded holes are uniformly distributed in the long edge direction of the support 401, two ends of the support 401 are respectively provided with extension arms, an angle value is correspondingly arranged beside the scale, so that the irradiation angle of the lamp can be quantitatively adjusted, and the lamp holder is fixed on the mounting surface. Compared with the traditional mechanical zooming structure with the secondary lens moving up and down, the variable-focus projection lamp 1 has the advantages of simple and compact structure, light weight and suitability for occasions needing silence.
As shown in fig. 4 to 5, the light source 10 emits a light beam, the controller 30 receives a control signal, the controller 30 obtains a corresponding voltage/current signal according to the control signal, and outputs a corresponding voltage/current to the focusing film 20 through the voltage/current signal, the focusing film 20 receives the corresponding voltage/current, and changes the arrangement condition of molecules in the focusing film 20 according to the voltage/current, when the driving current in the focusing film 20 is maximum, the molecules in the focusing film 20 are in an orderly arrangement state, the light beam can freely penetrate through, the light transmittance of the focusing film 20 is maximum, the light penetrating through the focusing film 20 is not diffused, the formed beam angle and the formed light spot 80 are minimum, and no zooming effect is achieved; as the driving current passing through the focusing film 20 is gradually reduced, the molecular arrangement in the focusing film 20 is gradually irregular, the light penetration is gradually blocked, the light transmittance of the focusing film 20 is gradually reduced, the formed beam angle and the formed light spot 80 are gradually increased, and the light beam is gradually zoomed; when no current flows in the focusing film 20, molecules in the focusing film 20 are in an irregular dispersion state, light cannot pass through, the light transmittance of the focusing film 20 is minimum, the formed beam angle and the formed light spot 80 are maximum, and the zooming effect is most obvious. Compared with a traditional mechanical zooming structure with a secondary lens moving up and down, the variable-focus projection lamp 1 is strong in controllability and high in consistency.
The above are only specific embodiments of the present invention, and the protection scope of the present invention is not limited thereby; any replacement and improvement made on the basis of not violating the conception of the utility model belong to the protection scope of the utility model.
Claims (9)
1. Variable focus projecting lamp, its characterized in that, including light source, radiator, focusing membrane and lighting fixture, the light source includes lens and lamp plate, lens install in the lamp plate, the radiator is equipped with the fin, the play plain noodles of light source is located to the focusing membrane, the backlight face of light source is installed in the radiator, the radiator is installed in the lighting fixture.
2. The variable focus projector of claim 1 further comprising a controller, said controller being connected to the focusing membrane.
3. The variable focus projector of claim 1 wherein the fins form the heat dissipating surface of the heat sink into a curved surface.
4. The variable focus projector lamp according to claim 2, wherein said lamp holder comprises a support and two knobs, said support has at least two threaded holes uniformly distributed along the long side direction, said support has two ends respectively provided with a protruding arm, said protruding arm is hinged with two ends of said heat sink respectively through said two knobs.
5. The variable focus projector of claim 4 wherein said knob has a corresponding scale and an angle value is provided adjacent to said scale.
6. The variable focus projection lamp according to claim 3, wherein a cover plate is mounted on a light emitting surface of the focusing film, and the middle of the cover plate is hollow to form a frame structure covering the light emitting surface of the focusing film.
7. The variable focus projector lamp according to claim 6, wherein the cover plate has two ends respectively provided with a baffle, the length of the cover plate is the same as that of the heat sink, the width of the cover plate is the same as that of the heat sink, the cover plate is abutted between the two knobs through the baffles at the two ends, and the cover plate and the heat sink form a closed structure.
8. The variable focus projector of claim 6 wherein a protective shield is positioned between the cover plate and the focusing film.
9. The variable focus projector of claim 1 wherein said light source is connected to a controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921644627.5U CN210740311U (en) | 2019-09-29 | 2019-09-29 | Variable-focus projection lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921644627.5U CN210740311U (en) | 2019-09-29 | 2019-09-29 | Variable-focus projection lamp |
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| Publication Number | Publication Date |
|---|---|
| CN210740311U true CN210740311U (en) | 2020-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921644627.5U Active CN210740311U (en) | 2019-09-29 | 2019-09-29 | Variable-focus projection lamp |
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| CN (1) | CN210740311U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022143330A1 (en) * | 2020-12-31 | 2022-07-07 | 欧普照明股份有限公司 | Dimmable lamp |
-
2019
- 2019-09-29 CN CN201921644627.5U patent/CN210740311U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022143330A1 (en) * | 2020-12-31 | 2022-07-07 | 欧普照明股份有限公司 | Dimmable lamp |
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