CN102023709B - Keyboard and notebook computer - Google Patents

Keyboard and notebook computer Download PDF

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Publication number
CN102023709B
CN102023709B CN200910092058.2A CN200910092058A CN102023709B CN 102023709 B CN102023709 B CN 102023709B CN 200910092058 A CN200910092058 A CN 200910092058A CN 102023709 B CN102023709 B CN 102023709B
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light emitting
emitting module
light
keyboard
module
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CN102023709A (en
Inventor
张渊毅
刘俊峰
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Lenovo Beijing Ltd
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Lenovo Beijing Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

The invention provides a keyboard and a notebook computer. The keyboard comprises a shell, keys and a keyboard circuit board, wherein each key comprises a key cap with a preset mark. The keyboard is characterized by also comprising a light emitting device, wherein the light emitting device comprises at least one light emitting module and a power supply module; the light emitting module is arranged below the key cap; the power supply module is connected with the at least one light emitting module to control the operation of the at least one light emitting module; and light emitted by the light emitting module can penetrate through the key cap, so the preset mark on the key cap can be recognized by a user. In the invention, marks on the keys of the keyboard can be clearly recognized by the user even in a dark environment, so the convenience in input of the user is improved.

Description

A kind of keyboard and notebook computer
Technical field
The present invention relates to keyboard technique, particularly a kind of keyboard and notebook computer.
Background technology
Keyboard is as the requisite input equipment of common computer, for carrying out input function.
Yet in use there are the following problems for existing keyboard, as in dark environment, user cannot see the setting of button on keyboard clearly, causes misoperation to increase, especially to the unskilled user of certain operations, as old man, child etc.
In order to solve the misoperation problem in above-mentioned dark surrounds, can solve by special-purpose external keyboard lamp is set, yet by keyboard light, to the scheme of keyboard illumination, at least there is following shortcoming in above-mentioned:
When carrying out input operation, user's palm always can overlay keyboard a part of region, keyboard light cannot be irradiated to these regions being covered by palm, and user's palm of need to moving away just can be seen the sign on the button in this part region like this, causes input operation extremely inconvenient.
Summary of the invention
The object of this invention is to provide a kind of keyboard and notebook computer, make user at the dark surrounds also sign on identifying keyboard button clearly, improve the convenience of user's input.
To achieve these goals, the embodiment of the present invention provides a kind of keyboard, comprises shell, button and keyboard pcb, and each button includes one and is provided with the default keycap identifying, and described keyboard also comprises a light-emitting device, and described light-emitting device comprises:
At least one light emitting module, is arranged at the below of described keycap;
Supply module, is connected with described at least one light emitting module, controls the work of described at least one light emitting module;
The light that described light emitting module sends can see through described keycap, and the default sign on described keycap can be identified by user.
Above-mentioned keyboard, wherein, also comprises:
Be electrically connected to matrix, by many row connecting lines and the interconnection of many row connecting lines, formed;
Described light emitting module is arranged at the crosspoint of described row connecting line and row connecting line, and two ends connect respectively row connecting line and row connecting line;
Described supply module, for by controlling the level of described row connecting line and row connecting line, is controlled the work of described light emitting module.
Above-mentioned keyboard, wherein, described supply module is specifically for controlling successively the level of the connecting line that light emitting module is corresponding described in each, make at synchronization, in described light emitting module, only have one and be lit, and in scheduled time length, described in each, light emitting module is at least lit once.
Above-mentioned keyboard, wherein, described supply module is specifically for controlling successively the level of the connecting line that each light emitting module that need to light is corresponding, make at synchronization, in the light emitting module that described needs are lighted, only having one is lit, and in scheduled time length, each light emitting module that need to light is at least lit once.
Above-mentioned keyboard, wherein, also comprises:
Detection module, for detection of the light intensity of current environment;
The first control module,, starts described light-emitting device, otherwise closes described light-emitting device during lower than predetermined threshold value for the light intensity at current environment;
The second control module, under the state of opening at described light emitting module, according to the light intensity of described current environment, control described supply module, the control based on described the second control module, when the light intensity of described current environment is lower, the brightness of described light-emitting diode is larger.
Above-mentioned keyboard, wherein, described at least one light emitting module and the corresponding setting one by one of described button.
Above-mentioned keyboard, wherein, also comprises:
The 3rd control module, for controlling described supply module, makes light emitting module that the prompting button of application program is corresponding with flashing mode luminous.
To achieve these goals, the embodiment of the present invention also provides a kind of notebook computer, comprise mainboard and the keyboard being connected with described mainboard, described keyboard comprises shell, button and keyboard pcb, each button includes one and is provided with the default keycap identifying, described keyboard also comprises a light-emitting device, and described light-emitting device comprises:
At least one light emitting module, is arranged at the below of described keycap;
Supply module, is connected with described at least one light emitting module, controls the work of described at least one light emitting module;
The light that described light emitting module sends can see through described keycap, and the default sign on described keycap can be identified by user.
Above-mentioned notebook computer, wherein, described keyboard also comprises:
Be electrically connected to matrix, by many row connecting lines and the interconnection of many row connecting lines, formed;
Described light emitting module is arranged at the crosspoint of described row connecting line and row connecting line, and two ends connect respectively row connecting line and row connecting line;
Described supply module, for by controlling the level of described row connecting line and row connecting line, is controlled the work of described light emitting module.
Above-mentioned notebook computer, wherein, described supply module is specifically for controlling successively the level of the connecting line that light emitting module is corresponding described in each, make at synchronization, in described light emitting module, only having one is lit, and in scheduled time length, described in each, light emitting module is at least lit once.
Above-mentioned notebook computer, wherein, described supply module is specifically for controlling successively the level of the connecting line that each light emitting module that need to light is corresponding, make at synchronization, in the light emitting module that described needs are lighted, only having one is lit, and in scheduled time length, each light emitting module that need to light is at least lit once.
Above-mentioned notebook computer, wherein, is characterized in that, also comprises:
Detection module, for detection of the light intensity of current environment;
The first control module,, starts described light-emitting device, otherwise closes described light-emitting device during lower than predetermined threshold value for the light intensity at current environment.
The embodiment of the present invention has following beneficial effect:
In the embodiment of the present invention, at keyboard, one light-emitting device is set, light emitting module wherein, is arranged at the below of keycap, and the light that described light emitting module sends can see through described keycap, and the default sign on described keycap can be identified by user.So under dark surrounds, the light that user also can send by means of this light emitting module comes identification sign, the input operation that user also can be well in dark surrounds;
, by timesharing, control meanwhile, make in scheduled time length, a LED only works a period of time, and by means of the persistence of vision, user can think that this LED, always in bright state, has saved electric energy.
Meanwhile, by transducer, this device can be only just started working in the darker environment of light, and ambient brightness regulate LED brightness more, has further saved electric energy.
Accompanying drawing explanation
Fig. 1 is the structural representation of light-emitting device;
Fig. 2 is light emitting module and the annexation schematic diagram that is electrically connected to matrix.
Embodiment
In the specific embodiment of the invention, by button below, light emitting module is set, and utilizes supply module to drive this light emitting module, by this light emitting module, emitted beam, from internal irradiation keycap, thereby the sign on keycap can be seen by user.
The keyboard of the embodiment of the present invention comprises shell, button and keyboard pcb, and each button includes one and is provided with the default keycap identifying, and wherein, described keyboard also comprises a light-emitting device, and as shown in Figure 1, described light-emitting device comprises:
At least one light emitting module, is arranged at the below of described keycap;
Supply module, is connected with described at least one light emitting module, controls the work of described at least one light emitting module;
The light that described light emitting module sends can see through described keycap, and the default sign on described keycap can be identified by user.
In specific embodiments of the invention, the light that described light emitting module sends can see through described keycap, and the default sign on described keycap can be realized in the following way by user is identified:
1, whole keycap is made with transparent or semitransparent material;
2, by the default sign hollow out on described keycap, make it to pass through light;
3, the part that comprises described default sign on described keycap is made with transparent or semitransparent material.
Under above-mentioned 3 kinds of modes, the light that described light emitting module sends can see through described keycap, and the default sign on described keycap can be identified by user.
Certainly, as long as light can see through from this keycap, just can make this sign to be identified by user, various implementations are described no longer one by one.
In specific embodiments of the invention, this light emitting module can be used LED (light-emitting diode) to realize.
And this light-emitting diode can correspondence arrange below the keycap of each button, also can be that a LED is corresponding to a plurality of buttons, as for common keyboard, can be that 3 buttons (as the Y on keyboard, G and H) arrange a LED, can be also that 4 buttons (as the T on keyboard, Y, G and H) arrange a LED.
Certainly, in order to guarantee better illuminating effect, can be that each button correspondence arranges a LED.
When each button correspondence arranges a LED, this LED can be fixedly installed on keycap inside, can certainly be arranged at keycap below, inner as long as its light can be irradiated to described keycap.
In specific embodiments of the invention, can independent power supply be set for each LED, namely each LED does not respectively disturb, but can cause so whole circuit more complicated, in order to reduce the complexity of circuit, in specific embodiments of the invention, LED is connected to one and is electrically connected to matrix, is described in detail as follows.
As shown in Figure 1, figure comprises that is electrically connected to a matrix, and this electrical connection matrix is formed by a plurality of row connecting lines and the interconnection of a plurality of row connecting line, in each crosspoint, is provided with a LED, and the two ends of this LED are connected respectively to row connecting line and row connecting line.
This supply module, for by controlling the level of described row connecting line and row connecting line, is controlled the work of described LED.
In specific embodiments of the invention, this supply module control row connecting line and row connecting line are as follows in the mode of predetermined level:
< mode one >
A kind of ground connection in row connecting line and row connecting line, in low level, another kind is drawn high by supply module, in high level, makes the LED on crosspoint be driven and light by forward voltage.
Certainly, by which kind of connecting line ground connection, which kind of connecting line level is drawn high, relevant with the connection of LED, situation as shown in Figure 1, needs row connecting line level to draw high, by row connecting line ground connection.
< mode two >
In above-mentioned mode one, LED is the state in lighting constantly, but the time of considering the persistence of vision is 0.05--0.2 second, therefore as long as guarantee the time of every 0.05s, LED is once bright, from the user point of view, this LED is exactly long-term in bright state, and namely user always can see the sign arranging on keycap.
Therefore, consumption for saves energy, in implementation two, directly by the first connecting line (in row connecting line or row connecting line a kind of) ground connection, and at synchronization, by supply module, the part in the second connecting line (another in row connecting line or row connecting line) is drawn high, and in a scheduled time length, the level of each connecting line in the second connecting line is at least drawn high once.
In conjunction with Fig. 1, take each situation of constantly drawing high a connecting line to be described as follows as example.
In all moment, the equal ground connection of row connecting line, at T1 constantly, the row connecting line of first row is drawn high, and other row connecting lines are in low level, therefore all LED of first row light, and other LED are not luminous, at T2 constantly, the row connecting line of second row is drawn high, and other row connecting lines are in low level, therefore all LED of second row light, and other LED are not luminous, ..., at TN constantly, last row's row connecting line is drawn high, and other row connecting lines are in low level, therefore all LED of last row light, and other LED are not luminous, at TN+1 constantly, the row connecting line of first row is drawn high, and other row connecting lines are in low level, therefore all LED of first row light, and other LED are not luminous, at TN+2 constantly, the row connecting line of second row is drawn high, and other row connecting lines are in low level, therefore all LED of second row light, and other LED are not luminous ....So move in circles, the sign that can realize on all keycaps can be seen by user.
Certainly, TN+1 should be less than 0.05s with the T1 time difference constantly constantly.
< mode three >
In above-mentioned mode two, each row LED is only lit once and closes afterwards in a Preset Time section, it not the state in lighting for a long time, therefore, can saves energy, but the electric energy of saving is limited, for further saves energy, further provides mode three in specific embodiments of the invention.
In implementation three, by controlling the level of row connecting line and row connecting line, control successively the level of the connecting line of each LED, make at synchronization, in the LED that need to light, only have a LED to be lit, and in a scheduled time length, each LED is at least lit once.
Certainly, the lead time between adjacent being lit for twice of same LED should be less than 0.05s.
< mode four >
In above-mentioned mode one, two and three, be all that all LED are lighted, but in actual user's use procedure, user may not need to understand all buttons, illustrates as follows.
In the process of user's movie, user may only need to use limited several buttons, as ESC button exits full framely, utilizes directionkeys to carry out F.F., rewind down etc.
In the process of playing user, as some shooting game, only need to use W, A, S and D travel direction and control, utilize certain several key to shoot control.
Above-mentioned in the situation that, if light all LED, not only can cause the increasing of power consumption, also can make troubles to user's operation simultaneously, as light all LED, can cause on the contrary the process of user's selection key to lengthen, and if only light the LED relevant to present procedure, user can find fast, has facilitated user.
In specific embodiments of the invention, the LED that first selection need to be lighted, it can be determined in the following way:
1, user specifies; Or
2, according to the application program of current operation, determine.As for Word program, needing the LED lighting is all LED, and for shooting game, the corresponding LED of button that the LED that needs to light may use for this program.
Mode for user's appointment, can comprise multiple implementation again, as user specifies temporarily, as arranged under state, user's input key, then exit the state of setting, now just can obtain user at the corresponding button of character that state input is set, and the corresponding LED of the case of obtaining is defined as to the LED that need to light;
Meanwhile, user can also determine a series of scheme of lighting by said process, and each lights the LED that scheme is lighted corresponding to one or more needs, then by user, selects as required the corresponding scheme of lighting.
For the second way, can observe code change by carry out the instruction of all buttons on backstage, judge that whether each button is useful, all buttons that can use to find out this application program, determine LED corresponding to button finding.
After determining the LED that need to light, in implementation four, by controlling the level of row connecting line and row connecting line, control successively the level of the connecting line of each LED that need to light, make at synchronization, in the LED that need to light, only have a LED to be lit, and in a scheduled time length, in the LED that need to light, each LED is at least lit once.
In specific embodiments of the invention, the setting of this LED is in order to solve the problem of user's sign on None-identified keycap in dark surrounds, therefore, it can only open when ambient light is darker, therefore, and in specific embodiments of the invention, as shown in Figure 1, described keyboard also comprises:
Detection module, for detection of the light intensity of current environment;
The first control module,, starts described light-emitting device, otherwise closes described light-emitting device during lower than predetermined threshold value for the light intensity at current environment.
Certainly, in specific embodiments of the invention, for some, train relevant program, in specific embodiments of the invention, as shown in Figure 1, this keyboard also comprises:
The second control module, for during in starting state, regulating the brightness of described LED at light-emitting device according to the light intensity of described current environment, the light intensity of described current environment is lower, and the brightness of described LED is larger.
The brightness of this LED can realize by control impuls width.
Meanwhile, for training mode, this keyboard also comprises:
Determination module, determines the prompting button of application program indicating user;
The 3rd control module, for controlling LED that described prompting button is corresponding with flashing mode luminous.
So-called with flashing mode luminous be exactly that LED light on and off are alternate, but time that is greater than the persistence of vision interval time between adjacent lighting for twice, but can not be oversize, as being set to 0.8s between 1.5s.
In specific embodiments of the invention, this keyboard can be the keyboard arranging separately, certainly can also combine with other any electronic equipments of keyboard that need to use, as the notebook computer in portable electric appts, mobile phone, certainly can also, as the keyboard of desktop computer, can also be applied on the control appliance of Industry Control.
With this keyboard applications, in notebook computer, be elaborated below.
The notebook computer of the embodiment of the present invention comprises mainboard and the keyboard being connected with described mainboard, described keyboard comprises shell, button and keyboard pcb, each button includes one and is provided with the default keycap identifying, it is characterized in that, described keyboard also comprises a light-emitting device, and described light-emitting device comprises:
At least one light emitting module, is arranged at the below of described keycap;
Supply module, is connected with described at least one light emitting module, is described at least one light emitting module power supply;
The light that described light emitting module sends can see through described keycap, and the default sign on described keycap can be identified by user.
This notebook computer, described keyboard also comprises:
Be electrically connected to matrix, by many row connecting lines and the interconnection of many row connecting lines, formed;
Described light emitting module is arranged at the crosspoint of described row connecting line and row connecting line, and two ends connect respectively row connecting line and row connecting line;
Described supply module, for by controlling the level of described row connecting line and row connecting line, is controlled the work of described light emitting module.
Described supply module can be controlled the level of the connecting line that light emitting module is corresponding described in each successively, makes at synchronization, only have one to be lit, and in scheduled time length, described in each, light emitting module is at least lit once in described light emitting module.
Certainly, this supply module can also be for controlling the level of the connecting line that each light emitting module that need to light is corresponding successively, make at synchronization, in the light emitting module that described needs are lighted, only having one is lit, and in scheduled time length, each light emitting module that need to light is at least lit once.
This notebook computer also comprises:
Detection module, for detection of the light intensity of current environment;
The first control module,, starts described light-emitting device, otherwise closes described light-emitting device during lower than predetermined threshold value for the light intensity at current environment.
This first control module can be arranged at keyboard, also can be arranged on mainboard.
Below the running of embodiment of the present invention device is described in detail, it specifically comprises:
Steps A 1, detection module detects the light intensity of current environment;
Steps A 2,, enters steps A 3, otherwise returns to steps A 1 during lower than predetermined threshold value at the light intensity of current environment;
Steps A 3, opens light-emitting device;
Steps A 4, by controlling the level of described row connecting line and row connecting line, controls the work of LED;
This steps A 4 can be following several situation:
Light all LED modes one
Control all row connecting lines in low level, and control all row connecting lines in high level, all LED are lighted under driving voltage drives.
Light all LED modes two
Control all row connecting lines in low level, but for row connecting line, at a time, only have a row connecting line in high level, but between default, each row connecting line has at least once to be drawn high.
Light all LED modes three
Control successively the level of the connecting line that each LED is corresponding, but at a time, only have a LED to be lit, between default in, each LED is at least lit once.
Light the LED mode that need to light
Control successively the level of the connecting line that each LED that need to light is corresponding, but at a time, in the LED that need to light, only have one and be lit, between default in, each LED in the LED that need to light is at least lit once.
And under training mode, according to the indicated button of application program, control the LED flicker that this button is corresponding.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (11)

1. a keyboard, comprises shell, button and keyboard pcb, and each button includes one and is provided with the default keycap identifying, and it is characterized in that, described keyboard also comprises a light-emitting device, and described light-emitting device comprises:
At least one light emitting module, is arranged at the below of described keycap, described at least one light emitting module and the corresponding setting one by one of described button;
Supply module, is connected with described at least one light emitting module, controls the work of described at least one light emitting module;
The light that described light emitting module sends can see through described keycap, and the default sign on described keycap can be identified by user;
Wherein, described keyboard is according to the application program of current operation, controls the corresponding light emitting module of button that described application program can use and emits beam;
Described keyboard is according to the application program of current operation, controls the corresponding light emitting module of button that described application program can use and emits beam and comprise:
On backstage, carry out the instruction of all buttons, observe code change, judge that whether each button is useful, all buttons that can use to find out described application program, determine light emitting module corresponding to button finding.
2. keyboard according to claim 1, is characterized in that, also comprises:
Be electrically connected to matrix, by many row connecting lines and the interconnection of many row connecting lines, formed;
Described light emitting module is arranged at the crosspoint of described row connecting line and row connecting line, and two ends connect respectively row connecting line and row connecting line;
Described supply module, for by controlling the level of described row connecting line and row connecting line, is controlled the work of described light emitting module.
3. keyboard according to claim 2, it is characterized in that, described supply module is specifically for controlling successively the level of the connecting line that light emitting module is corresponding described in each, make at synchronization, in described light emitting module, only having one is lit, and in scheduled time length, described in each, light emitting module is at least lit once.
4. keyboard according to claim 2, it is characterized in that, described supply module is specifically for controlling successively the level of the connecting line that each light emitting module that need to light is corresponding, make at synchronization, in the light emitting module that described needs are lighted, only having one is lit, and in scheduled time length, each light emitting module that need to light is at least lit once.
5. according to the keyboard described in claim 1,2,3 or 4, it is characterized in that, also comprise:
Detection module, for detection of the light intensity of current environment;
The first control module,, starts described light-emitting device, otherwise closes described light-emitting device during lower than predetermined threshold value for the light intensity at current environment;
The second control module, under the state of opening at described light emitting module, according to the light intensity of described current environment, control described supply module, the control based on described the second control module, when the light intensity of described current environment is lower, the brightness of described light-emitting diode is larger.
6. according to the keyboard described in claim 1,2,3 or 4, it is characterized in that, also comprise:
The 3rd control module, for controlling described supply module, makes light emitting module that the prompting button of application program is corresponding with flashing mode luminous.
7. a notebook computer, comprises mainboard and the keyboard being connected with described mainboard, and described keyboard comprises shell, button and keyboard pcb, each button includes one and is provided with the default keycap identifying, it is characterized in that, described keyboard also comprises a light-emitting device, and described light-emitting device comprises:
At least one light emitting module, is arranged at the below of described keycap, described at least one light emitting module and the corresponding setting one by one of described button;
Supply module, is connected with described at least one light emitting module, controls the work of described at least one light emitting module;
The light that described light emitting module sends can see through described keycap, and the default sign on described keycap can be identified by user;
Wherein, described keyboard is according to the application program of current operation, controls the corresponding light emitting module of button that described application program can use and emits beam;
Described keyboard is according to the application program of current operation, controls the corresponding light emitting module of button that described application program can use and emits beam and comprise:
On backstage, carry out the instruction of all buttons, observe code change, judge that whether each button is useful, all buttons that can use to find out described application program, determine light emitting module corresponding to button finding.
8. notebook computer according to claim 7, is characterized in that, described keyboard also comprises:
Be electrically connected to matrix, by many row connecting lines and the interconnection of many row connecting lines, formed;
Described light emitting module is arranged at the crosspoint of described row connecting line and row connecting line, and two ends connect respectively row connecting line and row connecting line;
Described supply module, for by controlling the level of described row connecting line and row connecting line, is controlled the work of described light emitting module.
9. notebook computer according to claim 8, it is characterized in that, described supply module is specifically for controlling successively the level of the connecting line that light emitting module is corresponding described in each, make at synchronization, in described light emitting module, only having one is lit, and in scheduled time length, described in each, light emitting module is at least lit once.
10. notebook computer according to claim 8, it is characterized in that, described supply module is specifically for controlling successively the level of the connecting line that each light emitting module that need to light is corresponding, make at synchronization, in the light emitting module that described needs are lighted, only having one is lit, and in scheduled time length, each light emitting module that need to light is at least lit once.
11. according to the notebook computer described in claim 7,8,9 or 10, it is characterized in that, also comprises:
Detection module, for detection of the light intensity of current environment;
The first control module,, starts described light-emitting device, otherwise closes described light-emitting device during lower than predetermined threshold value for the light intensity at current environment.
CN200910092058.2A 2009-09-14 2009-09-14 Keyboard and notebook computer Active CN102023709B (en)

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CN101350263A (en) * 2007-07-17 2009-01-21 英华达(上海)电子有限公司 Keyboard device for handhold equipment capable of lighting with various areas

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