CN112682727A - Dimmable lamp - Google Patents

Dimmable lamp Download PDF

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Publication number
CN112682727A
CN112682727A CN202011615788.9A CN202011615788A CN112682727A CN 112682727 A CN112682727 A CN 112682727A CN 202011615788 A CN202011615788 A CN 202011615788A CN 112682727 A CN112682727 A CN 112682727A
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CN
China
Prior art keywords
liquid crystal
light
module
dimmable
light fixture
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Pending
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CN202011615788.9A
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Chinese (zh)
Inventor
谯胜杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Opple Lighting Co Ltd
Suzhou Op Lighting Co Ltd
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Opple Lighting Co Ltd
Suzhou Op Lighting Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Opple Lighting Co Ltd, Suzhou Op Lighting Co Ltd filed Critical Opple Lighting Co Ltd
Priority to CN202011615788.9A priority Critical patent/CN112682727A/en
Publication of CN112682727A publication Critical patent/CN112682727A/en
Priority to PCT/CN2021/140418 priority patent/WO2022143330A1/en
Pending legal-status Critical Current

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Abstract

The invention provides a dimmable light fixture, comprising: a driving power supply module; the light source module is provided with a light emitting side and is used for emitting collimated light; the liquid crystal dimming module is arranged on the light emitting side of the light source module; the liquid crystal dimming module comprises two transparent electrode layers which are respectively and electrically connected to the driving power supply module; the liquid crystal layer is arranged between the two transparent electrode layers and is provided with polymer liquid crystal; the driving power module is used for providing voltage for the liquid crystal layer so as to enable the polymer liquid crystal to deflect. The liquid crystal display panel can be arranged in different areas of the same lamp, so that liquid crystals of all units deflect to different degrees, the transparency of light rays to different degrees is adjusted, the illusive light effect is achieved, and the control process is simple.

Description

Dimmable lamp
Technical Field
The application relates to the field of lighting, in particular to a dimmable lamp.
Background
At present, the conventional lamps used in the market can only realize dynamic adjustment in the aspect of light color change, but cannot independently realize adjustment of light intensity, angle and atomization degree, so that dynamic light distribution cannot be independently realized. If dynamic light distribution needs to be realized, optical elements need to be matched for realization, and the overall structure of the lamp becomes more complex after the optical components are combined.
For example, in stage arrangement, both the focus-adjustable lamp and the stage atmosphere lamp are used to realize dynamic light distribution through the cooperation of the optical elements, in the dynamic light distribution process, the optical elements need to be moved by the driving device, and the focal length of the lamp is controlled by the optical elements to present different lighting effects, so that not only the structure of the lamp is complicated, but also the control process is complicated.
Disclosure of Invention
The invention aims to: the utility model provides a lamps and lanterns of can adjusting luminance is through mutually supporting of light source module and liquid crystal module of adjusting luminance to solve among the prior art unable regulation and control of light that the light source jetted out, can not realize the problem of dynamic effect.
In order to achieve the above object, the present invention provides a dimmable light fixture, comprising: a driving power supply module; the light source module is provided with a light emitting side and is used for emitting collimated light; the liquid crystal dimming module is arranged on the light emitting side of the light source module; the liquid crystal dimming module comprises two transparent electrode layers which are respectively and electrically connected to the driving power supply module; the liquid crystal layer is arranged between the two transparent electrode layers and is provided with polymer liquid crystal; the driving power module is used for providing voltage for the liquid crystal layer so as to enable the polymer liquid crystal to deflect.
In some embodiments, the transparent electrode layer comprises a transparent film; and the conductive material layer is coated on one surface of the transparent film facing the liquid crystal layer.
In some embodiments, the transparent film sheet is an ethylene-vinyl acetate copolymer film having a thickness of 0.5mm to 0.7 mm.
In some embodiments, the liquid crystal layer includes a liquid crystal distribution spacer having a plurality of spaced apart liquid crystal distribution slots, the liquid crystal distribution spacer is disposed between two of the transparent electrode layers, and the polymer liquid crystal is filled in each of the liquid crystal distribution slots.
In some embodiments, the light source module comprises at least one light source; the collimating lens is arranged between the light source and the liquid crystal dimming module; the plurality of light sources correspond to one collimating lens, and each collimating lens corresponds to a plurality of liquid crystal distribution slots.
In some embodiments, each of the light sources corresponds to one of the collimating lenses, and each of the collimating lenses corresponds to one of the liquid crystal distribution slots.
In some embodiments, the liquid crystal distribution spacer is a strip, and the liquid crystal distribution slots are equidistantly and linearly distributed on the liquid crystal distribution spacer.
In some embodiments, the liquid crystal distribution spacers are rectangular, and the liquid crystal distribution slots are equidistantly distributed in an array on the liquid crystal distribution spacers.
In some embodiments, a plurality of electrode units are formed between two transparent electrode layers, and each electrode unit is used for correspondingly driving the liquid crystal in one liquid crystal distribution slot.
In some embodiments, the dimmable lamp further includes a control module, the control module can control the driving power module to apply the same or different voltages to all the electrode units at the same time, and the control module can control the driving power module to apply the same or different voltages to the same electrode unit at different times.
In some embodiments, when no voltage is applied to the driving power module, the liquid crystal is not deflected, and the light passes through the liquid crystal dimming module and then is in a dark state with haze; when the driving power supply module applies voltage, the liquid crystal deflects, and the light rays are in a bright state after passing through the liquid crystal dimming module.
In some embodiments, the divergence angle of the light ray in the dark state is greater than the divergence angle of the light ray in the light state.
In some embodiments, the transmittance of the liquid crystal dimming module to the light is proportional to the deflection angle of the liquid crystal after the voltage is applied.
In some embodiments, the liquid crystal dimming module further comprises two pieces of transparent glass, which are oppositely arranged, and the transparent electrode layers are arranged on two opposite surfaces of the two pieces of transparent glass; and the transparent glass is arranged in the frame.
In some embodiments, the dimmable light fixture further comprises a housing having a mounting slot; the light source, the collimating lens and the liquid crystal dimming module are sequentially arranged in the mounting groove of the shell in a stacked mode; and the outer frame is arranged on the shell and used for fixing the liquid crystal dimming module.
In some embodiments, the dimmable light fixture further comprises a housing having a mounting slot; the light source, the collimating lens and the liquid crystal dimming module are sequentially arranged in the mounting groove of the shell in a stacked mode; the shell is in a long strip shape, and the mounting groove is also in a strip shape; and the outer frame is arranged on the shell and used for fixing the liquid crystal dimming module.
The invention has the technical effects that: according to the dimmable lamp, the liquid crystal dimming module is added at the light emergent side of the light source module, and when the dimmable lamp is used, the transparency of light emitted by the light source module after the light penetrates through the liquid crystal dimming module is changed by changing the voltage at two sides of the polymer liquid crystal; meanwhile, a liquid crystal distribution spacer can be added into the liquid crystal dimming module, polymer liquid crystal is divided into a plurality of units by liquid crystal distribution slotted holes in the liquid crystal distribution spacer, each unit corresponds to one light source module, dynamic light distribution is achieved through electric control, and therefore liquid crystal of each unit can deflect to different degrees in different areas of the same lamp, adjustment of transparency of light to different degrees is achieved, a fantasy light effect is achieved, and the control process is simple.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is an exploded view of a dimmable lamp according to embodiment 1 of the present invention;
fig. 2 is an exploded view of a liquid crystal dimming module in a dimmable lamp according to embodiment 1 of the present invention;
FIG. 3 is a layered structure diagram of a transparent electrode layer according to examples 1 and 2 of the present invention;
fig. 4 is an assembly view of a liquid crystal dimming module in a dimmable lamp according to embodiment 1 of the present invention;
fig. 5 is a diagram of a non-energized operating state of a liquid crystal dimming module in a dimmable lamp according to embodiment 1 of the present invention;
fig. 6 is a diagram of an energization operating state of a liquid crystal dimming module in a dimmable lamp according to embodiment 1 of the present invention;
fig. 7 is a state diagram of a dimmable lamp according to embodiment 1 of the present invention after light is transmitted out;
fig. 8 is a state diagram of another dimmable lamp according to embodiment 1 of the present invention after light rays are transmitted out;
fig. 9 is a rear view of a dimmable lamp according to embodiment 1 of the present invention;
fig. 10 is a right side view of a dimmable lamp according to embodiment 1 of the present invention;
fig. 11 is a structural diagram of a dimmable lamp according to embodiment 2 of the present invention;
fig. 12 is a state diagram of a dimmable lamp according to embodiment 2 of the present invention after light rays are transmitted out;
fig. 13 is a state diagram of another dimmable lamp according to embodiment 2 of the present invention after light rays are emitted.
Reference numerals:
100a, 100b dimmable light fixtures; 1a, 1b housing;
2a, 2b brackets; 3a, 3b light source module;
4 liquid crystal dimming module; 5a, 5b outer frame;
11a, 11b mounting grooves; 21 a main body part;
22 a connecting part; 31a, 31b light source circuit boards;
32a, 32b light sources; 33a, 33b collimating lenses;
41 a transparent electrode layer; 42 a liquid crystal layer;
43 transparent glass; 44 a frame;
411 a transparent film of film; 412 a layer of conductive material;
421 a liquid crystal distribution spacer; 422 a polymer liquid crystal;
4210 liquid crystal distribution groove.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.
Example 1
As shown in fig. 1, in the present embodiment, a dimmable light fixture 100a is provided, which includes a housing 1a, a bracket 2a, a light source module 3a, a liquid crystal dimming module 4, and an outer frame 5 a.
The housing 1a has a driving power module (not shown) and a power access device (not shown), and the power supply can be disposed inside the housing 1a or can be connected to an external power supply through the power access device. The present invention is not particularly limited. The driving power module has a driving circuit therein for driving the liquid crystal dimming module 4, and the driving manner is described in detail below. The housing 1a is shaped like a rectangular parallelepiped box and includes a mounting groove 11a for mounting the light source module 3a and the liquid crystal dimming module 4.
Fig. 9 is a rear view of a dimmable lamp 100a of the present invention, and fig. 10 is a right view of the dimmable lamp 100a of the present invention, in combination with fig. 9 and fig. 10, the bracket 2a has a main body portion 21 and two connecting portions 22, the two connecting portions 22 are oppositely disposed and respectively connected to the end portions of the main body portion 21, and the two connecting portions 22 are respectively rotatably connected to the side surfaces of the housing 1a, so that the bracket 2a and the housing 1a can be rotatably connected, and the irradiation angle of light can be adjusted when the lamp is used in a later period.
The light source module 3a includes a light source circuit board 31a, a plurality of light sources 32a, and a plurality of collimating lenses 33 a. The light source circuit board 31a is installed at the bottom of the installation groove 11a of the housing 1a and electrically connected with the power access device, and the light source 32a is installed at a surface of the light source circuit board 31a away from the bottom of the installation groove 11 a. In this embodiment, the light sources 32a are distributed in an array. The collimating lenses 33a are disposed in the mounting groove 11a and located on the light source circuit board 31a, each collimating lens 33a corresponds to one light source 32a, and each collimating lens 33a is configured to convert light emitted from the light source 32a into collimated light and emit the collimated light toward the liquid crystal dimming module 4. In this embodiment, the light source 32a may be an LED lamp or a mini-LED lamp, the color of the light source 32a may be selected according to actual needs, the light sources 32a with different colors may be assembled in the same dimmable light fixture 100a, or the light sources 32a with the same color may be assembled, so that the illusion stage effect may be increased.
As shown in fig. 2, the liquid crystal module 4 includes two transparent electrode layers 41, a liquid crystal layer 42, two transparent glasses 43, and a frame 44. Wherein the liquid crystal layer 42 is disposed between two of the transparent electrode layers 41. The transparent electrode layer is disposed between two pieces of transparent glass 43, and the frame 44 is used for loading two layers of the transparent electrode layer 41 and the liquid crystal layer 42.
When assembled, the outer frame 5a is used to fix the two transparent electrode layers 41 and the liquid crystal layer 42 in the mounting groove 11a of the housing 1a in fig. 1. The outer frame 5a and the shell 1a can be arranged in a clamping connection mode and can also be bonded through glue.
As shown in fig. 3, the transparent electrode layer 41 includes a transparent film 411 and a conductive material layer 412. The transparent film 411 is an ethylene-vinyl acetate copolymer film, the thickness range is 0.5mm to 0.7mm, and light rays with a small thickness can easily penetrate through the film. The conductive material used by the conductive material layer may be nano copper, nano aluminum, nano silver, or the like, or may be a conductive graphene material, or may be an indium tin oxide material, or the like, and the conductive material is sputtered or deposited on the surface of the transparent film 411, and then a plurality of independent electrodes are formed by an etching method; or a conductive material is directly deposited on the surface of the transparent film 411 through a specific mask plate to form an independent electrode. In the two transparent electrode layers 41, two oppositely disposed electrodes form an electrode unit, and the conductive material layer 412 faces the liquid crystal layer 42.
Referring to fig. 4, 5, and 6, the liquid crystal layer 42 includes a liquid crystal distribution spacer 421 and polymer liquid crystals 422. The liquid crystal distribution spacer 421 has a plurality of liquid crystal distribution slots 4210 therein, and the liquid crystal distribution slots 4210 are distributed in the same manner as the collimating lens 33, so that the liquid crystal distribution slots 4210 can correspond to the collimating lens 33 when assembled. Therefore, in this embodiment, the liquid crystal distribution slots 4210 are also arranged in an array. Each liquid crystal distribution slot 4210 is filled with the polymer liquid crystal 422. Each electrode unit corresponds to one liquid crystal distribution slot 4210, and each electrode unit independently drives the polymer liquid crystal 422 in its corresponding liquid crystal distribution slot 4210.
The dimming principle of the dimmable light fixture 100a is analyzed below with reference to fig. 5 to 8.
As shown in fig. 5, fig. 5 shows that when the driving circuit does not apply a voltage to the polymer liquid crystal 422, after the light passes through the collimating lens 33a and then passes through the liquid crystal dimming module 4, the transmittance of the light is low, the light intensity is low, the light is in a scattering state, the collimated light passes through the corresponding polymer liquid crystal 422 to form floodlight with a large angle, the emitted light has poor convergence, and the emitted light is in a dark state with haze.
As shown in fig. 6, when the driving circuit applies a voltage to the polymer liquid crystal 422, after the light passes through the collimating lens 33a and then passes through the liquid crystal dimming module 4, the transmittance of the light is high, the light intensity is high, the collimated light passes through the corresponding polymer liquid crystal 422 and is a narrow-angle light beam with high light intensity, the condensing property is high, and the emitted light is in a bright state. The light source 32a emits light, the light forms parallel collimated light after passing through the collimating lenses 33a, each collimating lens 33a corresponds to one liquid crystal distribution slot 4210 on the liquid crystal dimming module 4, the parallel light is emitted out through the liquid crystal distribution slot 4210 of the liquid crystal dimming module 4, and the light intensity, angle and atomization degree of the light emitted out by the parallel light through each liquid crystal distribution slot 4210 can be adjusted by adjusting the transparency of the polymer liquid crystal 422 in the liquid crystal distribution slot 4210.
In this embodiment, one dimmable lamp 100a has a plurality of liquid crystal distribution slots 4210, and the deflection angle of the polymer liquid crystal 422 in each liquid crystal distribution slot 4210 can be controlled independently. Therefore, if the light emitting surface of the dimmable lamp 100a is divided into a plurality of light emitting areas, for example, an area corresponding to one liquid crystal distribution slot 4210 is a light emitting area or an area corresponding to two liquid crystal distribution slots 4210 is a light emitting area, in the same light emitting area, light in the same bright and dark state can be emitted. The light and shade states of the light emitted between the light emitting areas are set to be different. See fig. 7 and 8. In fig. 7 and 8, after the light passes through the liquid crystal dimming module 4, the light with strong light is shown by "long circles", and the light with dark light is shown by "short circles". The "short circle" indicates that the polymer liquid crystal 422 is not deflected or deflected at a small angle, and the emitted light is in a dark state with haze. The "long circle" indicates that the polymer liquid crystal 422 is deflected or deflected at a large angle, and the emitted light is bright.
As shown in fig. 1, in the present embodiment, the light sources 32a are distributed in an array. Therefore, referring to fig. 7, when adjusting, if the light emergent area at the center of the dimmable light fixture 100a requires a narrow-angle light beam with high light intensity, the light emergent area at the edge of the dimmable light fixture 100a requires a floodlight with a large angle. Then the voltage of the electrode unit in the middle needs to be increased through the driving circuit to increase the deflection angle of the polymer liquid crystal 422 in the middle of the dimmable light fixture 100 a; meanwhile, the voltage of the electrode unit at the edge of the dimmable lamp 100a can be reduced to reduce the deflection angle of the polymer liquid crystal 422 at the edge of the dimmable lamp 100a, in other words, the transmittance of the light in the light emergent area in the middle of the dimmable lamp 100a can be increased, and the transmittance in each area is gradually decreased toward the periphery based on the light emergent area in the middle of the dimmable lamp 100 a.
As shown in fig. 1, in the present embodiment, the light sources 32a are distributed in an array. Therefore, referring to fig. 8, if a large-angle flood lighting is required for the light exit area in the center of the dimmable light fixture 100a during the adjustment, a high-intensity narrow-angle light beam is required for the edge of the dimmable light fixture 100 a. Then, the voltage of the electrode unit in the middle of the dimmable light fixture 100a needs to be reduced by the driving circuit to reduce the deflection angle of the polymer liquid crystal 422 in the middle of the dimmable light fixture 100 a; meanwhile, the voltage of the electrode unit at the edge of the dimmable lamp 100a may be increased to increase the deflection angle of the polymer liquid crystal 422 at the edge of the dimmable lamp 100a, in other words, the transmittance of the light in the light emergent region of the center of the dimmable lamp 100a may be decreased, and the transmittance of each region may be sequentially increased toward the periphery based on the light emergent region of the center of the dimmable lamp 100 a.
Different voltages are applied to different electrode units through a driving circuit, different polymer liquid crystals 422 can present different deflection angles, and therefore after collimated light passes through the liquid crystal dimming module 4, light with different light intensities, angles and atomization degrees can be presented at positions corresponding to the liquid crystal distribution slotted holes 4210, and dynamic light distribution of space dimensions is achieved. By continuously adjusting the voltages of different electrode units, the variable light effect can be presented, and the dynamic light distribution of time dimension is realized.
Dimming commands can be transformed by the controller according to actual scene requirements. The liquid crystal dimming modules 4 at different positions have transmittance to light, so that the dimmable lamp 100a realizes distributed combined light distribution. The dimmable lamp 100a can form a dynamic lighting effect by applying different voltages to the polymer liquid crystal 422 through the driving power supply module, is different from the previous static light distribution, and realizes the dynamic light distribution of the lamp through electric control dimming at present.
The invention changes the transparency of the polymer liquid crystal 422 in different liquid crystal distribution slotted holes 4210 by changing the voltage at two sides of the polymer liquid crystal 422 in different liquid crystal distribution slotted holes 4210, the light emitted by the light source presents different light effects through the polymer liquid crystal 422 with different transparencies, the dynamic light distribution is realized by electric control, and the control process is simple.
Example 2
As shown in fig. 11, in the present embodiment, a dimmable light fixture 100b is provided, which includes a housing 1b, a bracket 2b, a light source module 3b, a liquid crystal dimming module 4, and an outer frame 5 b.
The housing 1b has a driving power module (not shown) and a power access device (not shown), and the power supply can be disposed inside the housing 1b or connected to an external power supply through the power access device. The present invention is not particularly limited. The driving power module has a driving circuit therein for driving the liquid crystal dimming module 4, and the driving manner is described in detail below. The projection of the housing 1b is strip-shaped and includes a mounting groove 11b for mounting the light source module 3b and the liquid crystal dimming module 4. In this embodiment, the housing 1b is a rectangular box, and a rectangular channel can be selected.
In this embodiment, the support 2b is a lifting rope, a suspension rod, etc., the lower end of the lifting rope or the suspension rod is fixed on the housing 1b, and the dimmable lamp 100b can be suspended by the lifting rope or the suspension rod.
The light source module 3b includes a light source circuit board 31b, a plurality of light sources 32b, and a plurality of collimating lenses 33 b. The light source circuit board 31b is installed at the bottom of the installation groove 11b of the housing 1b and electrically connected with the power access device, and the light source 32b is installed at one surface of the light source circuit board 31b far away from the bottom of the installation groove 11 b. In this embodiment, the light sources 32b are linearly distributed. The collimating lenses 33b are disposed in the mounting groove 11b and located on the light source circuit board 31b, each collimating lens 33b corresponds to one light source 32b, and each collimating lens 33b is configured to convert light emitted by the light source 32b into collimated light and emit the collimated light toward the liquid crystal dimming module 4. In this embodiment, the light source 32b may be an LED lamp or a mini-LED lamp, the color of the light source 32b may be selected according to actual needs, the light sources 32b with different colors may be assembled in the same dimmable light fixture 100b, and the light sources 32b with the same color may also be assembled, so that the illusion stage effect may be increased.
In this embodiment, the layered structure of the liquid crystal dimming module 4 is the same as that of embodiment 1, except that the shape is different, and the liquid crystal dimming module 4 in this embodiment corresponds to the light source 32b, so that the liquid crystal dimming module 4 is a strip shape. The layered structure of the liquid crystal dimming module 4 is shown in fig. 2 and 3 of embodiment 1.
The dimming instruction can be changed through the driving power module according to the actual scene requirement. The liquid crystal dimming modules 4 at different positions have different transparencies, so that the dimmable lamp 100b can realize distributed combined light distribution.
As shown in fig. 12 and 13, after the light passes through the liquid crystal dimming module 4, the light with stronger light is represented by a "long circle" and the light with darker light is represented by a "short circle". The "short circle" indicates that the polymer liquid crystal 422 is not deflected or deflected at a small angle, and the emitted light is in a dark state with haze. The "long circle" indicates that the polymer liquid crystal 422 is deflected or deflected at a large angle, and the emitted light is bright.
As shown in fig. 11, in the present embodiment, the light sources 32b are arranged in a straight line, that is, the light sources 32b are arranged in a row. Therefore, referring to fig. 12, in the adjustment, if the light exiting region at the center of the dimmable light fixture 100b requires a narrow-angle light beam with high light intensity, the light exiting regions at the two side edges of the dimmable light fixture 100b require flood lighting with a large angle. Then, the voltage of the electrode unit in the middle of the dimmable light fixture 100b needs to be increased through the driving circuit to increase the deflection angle of the polymer liquid crystal 422 in the middle of the dimmable light fixture 100 b; meanwhile, the voltage of the electrode units at the edge portions of the two sides of the dimmable lamp 100b can be reduced to reduce the deflection angle of the polymer liquid crystal 422 at the edge portions of the two sides of the dimmable lamp 100b, in other words, the transmittance of the light in the light emergent area in the middle of the dimmable lamp 100b can be increased, and the transmittance in each area is gradually decreased towards the periphery on the basis of the light emergent area in the middle of the dimmable lamp 100 b.
As shown in fig. 11, in the present embodiment, the light sources 32b are linearly distributed. Therefore, referring to fig. 13, if the light exiting area at the center of the dimmable light fixture 100b requires a large-angle flood lighting during the adjustment, the two side edges of the dimmable light fixture 100b require narrow-angle light beams with high light intensity. Then, the voltage of the electrode unit in the middle of the dimmable light fixture 100b needs to be reduced by the driving circuit to reduce the deflection angle of the polymer liquid crystal 422 in the middle of the dimmable light fixture 100 b; meanwhile, the voltage of the electrode units at the edge portions of the two sides of the dimmable lamp 100b can be increased to increase the deflection angle of the polymer liquid crystal 422 at the edge portion of the dimmable lamp 100b, in other words, the transmittance of the light in the light emergent area in the middle of the dimmable lamp 100b can be decreased, and the transmittance of each area is sequentially increased towards the periphery based on the light emergent area in the middle of the dimmable lamp 100 b.
The present application has been described in relation to the above embodiments, which are only examples for implementing the present application. It must be noted that the disclosed embodiments do not limit the scope of the application. Rather, modifications and equivalent arrangements included within the spirit and scope of the claims are included within the scope of the present application.

Claims (16)

1. A dimmable light fixture, comprising:
a driving power supply module;
the light source module is provided with a light emitting side and is used for emitting collimated light;
the liquid crystal dimming module is arranged on the light emitting side of the light source module;
the liquid crystal dimming module comprises
Two transparent electrode layers respectively electrically connected to the driving power supply module;
the liquid crystal layer is arranged between the two transparent electrode layers and is provided with polymer liquid crystal;
the driving power module is used for providing voltage for the liquid crystal layer so as to enable the polymer liquid crystal to deflect.
2. The dimmable light fixture of claim 1, wherein the transparent electrode layer comprises:
a transparent film sheet; and
and the conductive material layer is coated on one surface of the transparent film facing the liquid crystal layer.
3. The dimmable light fixture of claim 2, wherein the transparent film is an ethylene-vinyl acetate copolymer film having a thickness of 0.5mm to 0.7 mm.
4. The dimmable light fixture of claim 1, wherein said liquid crystal layer comprises a liquid crystal distribution spacer having a plurality of spaced apart liquid crystal distribution slots, said liquid crystal distribution spacer being disposed between two of said transparent electrode layers, said polymer liquid crystal being filled in each of said liquid crystal distribution slots.
5. The dimmable light fixture of claim 4, wherein the light source module comprises:
at least one light source; and
the collimating lens is arranged between the light source and the liquid crystal dimming module;
the plurality of light sources correspond to one collimating lens, and each collimating lens corresponds to a plurality of liquid crystal distribution slots.
6. The dimmable light fixture of claim 5, wherein each said light source corresponds to one said collimating lens, and each said collimating lens corresponds to one said liquid crystal distribution slot.
7. The dimmable light fixture of claim 4, wherein said liquid crystal distribution spacers are elongated and said liquid crystal distribution slots are equidistantly and linearly distributed on said liquid crystal distribution spacers.
8. The dimmable light fixture of claim 4, wherein said liquid crystal distribution spacers are rectangular and said liquid crystal distribution slots are equidistantly spaced in an array on said liquid crystal distribution spacers.
9. The dimmable lamp of claim 4, wherein a plurality of electrode units are formed between two of said transparent electrode layers, each electrode unit being configured to drive liquid crystal in one of said liquid crystal distribution slots correspondingly.
10. The dimmable light fixture of claim 9, further comprising
A control module capable of controlling the driving power module to apply the same or different voltages to all the electrode units at the same time, and controlling the driving power module to apply the same or different voltages to the same electrode units at different times.
11. Dimmable light fixture according to claim 1,
when the driving power supply module does not apply voltage, the liquid crystal does not deflect, and the light ray is in a dark state with haze after passing through the liquid crystal dimming module;
when the driving power supply module applies voltage, the liquid crystal deflects, and the light rays are in a bright state after passing through the liquid crystal dimming module.
12. The dimmable light fixture of claim 11, wherein the divergence angle of the light in the dark state is greater than the divergence angle of the light in the bright state.
13. The dimmable light fixture of claim 1, wherein the transmittance of the liquid crystal dimming module to the light is proportional to the deflection angle of the liquid crystal after the voltage is applied.
14. The dimmable light fixture of claim 1, wherein said liquid crystal dimming module further comprises
The two pieces of transparent glass are oppositely arranged, and the transparent electrode layers are arranged on two opposite surfaces of the two pieces of transparent glass; and
a light adjusting plate frame, the transparent glass being installed in the frame.
15. The dimmable light fixture of claim 1, further comprising
A housing having a mounting groove; the light source, the collimating lens and the liquid crystal dimming module are sequentially arranged in the mounting groove of the shell in a stacked mode;
and the outer frame is arranged on the shell and used for fixing the liquid crystal dimming module.
16. The dimmable light fixture of claim 1, further comprising
A housing having a mounting groove; the light source, the collimating lens and the liquid crystal dimming module are sequentially arranged in the mounting groove of the shell in a stacked mode; the shell is in a long strip shape, and the mounting groove is also in a strip shape;
and the outer frame is arranged on the shell and used for fixing the liquid crystal dimming module.
CN202011615788.9A 2020-12-31 2020-12-31 Dimmable lamp Pending CN112682727A (en)

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CN202011615788.9A CN112682727A (en) 2020-12-31 2020-12-31 Dimmable lamp
PCT/CN2021/140418 WO2022143330A1 (en) 2020-12-31 2021-12-22 Dimmable lamp

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Application Number Priority Date Filing Date Title
CN202011615788.9A CN112682727A (en) 2020-12-31 2020-12-31 Dimmable lamp

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CN112682727A true CN112682727A (en) 2021-04-20

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Cited By (1)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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