CN105744696A - Touch type light modulation table lamp having sight protection function - Google Patents
Touch type light modulation table lamp having sight protection function Download PDFInfo
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- CN105744696A CN105744696A CN201410752115.6A CN201410752115A CN105744696A CN 105744696 A CN105744696 A CN 105744696A CN 201410752115 A CN201410752115 A CN 201410752115A CN 105744696 A CN105744696 A CN 105744696A
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Abstract
The invention discloses a touch type light modulation table lamp having a sight protection function. The touch type light modulation table lamp comprises a power supply circuit, a touch switch circuit IC1, a Schmidt trigger circuit, a touch switch and a photosensitive resistor RL, wherein the touch switch circuit IC1, the Schmidt trigger circuit, the touch switch and the photosensitive resistor RL are connected with the power supply circuit. The touch switch circuit IC1 is connected with the touch switch; the photosensitive resistor RL and the Schmidt trigger circuit are connected; and the Schmidt trigger circuit and the touch switch circuit IC1 are connected. According to the invention, the photosensitive resistor RL is arranged in the Schmidt trigger circuit and is used for adjusting illumination brightness; when the photosensitive resistor RL is irradiated by light and is in a low-resistance mode, the Schmidt trigger circuit works and a light-emitting diode VD3 does not work; and when the illuminance is not sufficient, the Schmidt trigger circuit overturns because of the increasing of the resistance value of the photosensitive resistor RL, so that the light-emitting diode VD3 works to emit light to express that brightness needs to be increased due to insufficient light. Because of the light measuring function, a phenomenon that the eyesight of the student user is damaged due to insufficient illumination during learning can be avoided. Moreover, the circuit cost is low; and the operation is simple and is easy to implement.
Description
Technical field
The present invention relates to a kind of desk lamp, particularly to a kind of touch lamp dimmer having vision care function.
Background technology
Modern Family uses the more and more of desk lamp, and the use of desk lamp also gets more and more, such as eye-protecting desk lamp, bedside desk lamp, floor lamp etc..It is a kind of trend that family buys desk lamp, and desk lamp is energy-conservation after all, environmental protection, takes up space smaller, convenient, practical.But these desk lamp eye-protecting function realize often by manual adjustments; light can not be automatically adjusted according to the change of environment and protect eyes; the brightness of the light of protection eyes can not be regulated, it is therefore desirable to a kind of touch lamp dimmer having vision care function according to different requirements.
Summary of the invention
In view of this, the technical problem to be solved is to provide a kind of touch lamp dimmer having vision care function.
The object of the present invention is achieved like this:
The touch lamp dimmer having vision care function provided by the invention, including power circuit and the touch switch circuit IC1NB7232 being connected with power circuit respectively, Schmidt trigger circuit, soft-touch control and photoresistor RL；
Described touch switch circuit IC1NB7232 is connected with soft-touch control by resistance；
It is connected with Schmidt trigger circuit after the resistance of described photoresistor RL serial adjustable；
Described Schmidt trigger circuit is connected with touch switch circuit IC1NB7232.
Further, described Schmidt trigger circuit includes the first audion VT1 bis-and the second audion VT2；
Described first audion VT1 base stage is connected to the points of common connection of serial adjustable resistance and photoresistor RL；
The described base stage of the second audion VT2 is connected with the colelctor electrode of the first audion, ground connection after the colelctor electrode series connection light emitting diode of described second audion VT2, being connected with the emitter stage of the first audion after the emitter stage series resistance of described second audion VT2, the emitter stage of described first audion is connected with power circuit by resistance.
Further, also including bidirectional thyristor, described bidirectional thyristor is connected to after connecting with lamp between power circuit two ends, and the control end of described bidirectional thyristor is connected with touch switch circuit IC1NB7232 by resistance.
Further, described power circuit includes dropping resistor R1, commutation diode VD2, Zener diode VD1 and filter capacitor C1；
Described dropping resistor R1 and commutation diode VD2 is series between civil power inlet wire two ends, and described Zener diode VD1 is parallel between civil power inlet wire two ends, and described filter capacitor C1 is parallel between civil power inlet wire two ends.
The beneficial effects of the present invention is: the present invention adopts addition photoresistor RL in Schmidt trigger circuit to carry out regulating illumination brightness, when photoresistor RL light is irradiated in low resistance, make the audion VT1 in Schmidt trigger circuit turn on, audion VT2 ends, and light emitting diode VD3 does not work；During illuminance deficiency, overturning because photoresistor RL resistance becomes ambassador's Schmidt trigger, audion VT1 ends and audion VT2 conducting, and then light emitting diode VD3 is luminous, represents that illumination deficiency need to increase brightness.Light measuring function can avoid student to harm one's eyes because illumination is not enough when study.This circuit cost is low and simple to operate is easily achieved.
Accompanying drawing explanation
In order to make the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail, wherein:
The touch light-adjusting table-lamp circuit figure having vision care function that Fig. 1 provides for the embodiment of the present invention.
Detailed description of the invention
Hereinafter with reference to accompanying drawing, the preferred embodiments of the present invention are described in detail.Should be appreciated that preferred embodiment is only for illustrating the present invention, rather than in order to limit the scope of the invention.
As it can be seen, the touch lamp dimmer having vision care function provided by the invention, including power circuit and the touch switch circuit IC1NB7232 being connected with power circuit respectively, Schmidt trigger circuit, soft-touch control and photoresistor RL；
Described touch switch circuit IC1NB7232 is connected with soft-touch control by resistance；
It is connected with Schmidt trigger circuit after the resistance of described photoresistor RL serial adjustable；
Described Schmidt trigger circuit is connected with touch switch circuit IC1NB7232.
Described Schmidt trigger circuit includes the first audion VT1 bis-and the second audion VT2；
Described first audion VT1 base stage is connected to the points of common connection of serial adjustable resistance and photoresistor RL；
The described base stage of the second audion VT2 is connected with the colelctor electrode of the first audion, ground connection after the colelctor electrode series connection light emitting diode of described second audion VT2, being connected with the emitter stage of the first audion after the emitter stage series resistance of described second audion VT2, the emitter stage of described first audion is connected with power circuit by resistance.
Also including bidirectional thyristor, described bidirectional thyristor is connected to after connecting with lamp between power circuit two ends, and the control end of described bidirectional thyristor is connected with touch switch circuit IC1NB7232 by resistance.
Described power circuit includes dropping resistor R1, commutation diode VD2, Zener diode VD1 and filter capacitor C1；
Described dropping resistor R1 and commutation diode VD2 is series between civil power inlet wire two ends, and described Zener diode VD1 is parallel between civil power inlet wire two ends, and described filter capacitor C1 is parallel between civil power inlet wire two ends.
Bidirectional thyristor VS in the touch lamp dimmer having vision care function that the present embodiment provides selects MAC97A6 (1A, 600V) or the common bidirectional thyristor of BCR1AM-6 (1A, 400V) type, and its profile is such as common plastic packaging low-power transistor.
220V electric main, after resistor R1 blood pressure lowering current limliting, crystal diode VD2 halfwave rectifier, Zener diode VD1 voltage stabilizing and capacitor C1 filter, exports about 6V DC voltage, as the running voltage of IC1 and crystal triode VT1, VT2.
The first audion VT1 bis-and the second audion VT2 in Schmidt trigger circuit is used that 9015 or 3CG21 type silicon PNP low-power transistor, it is desirable to current amplification factor is more than 100.VD1 6V, 0.5W ordinary silicon Zener diode, such as 1N752 or UZ-5.6B type etc.；VD2 1N4004 type silicon rectifier diode；VD3 is by rotten mm High brightness Red LED.
RL selects bright resistance less than normal light sensitive resistor more than IMf of 5kn, resistance in the dark, such as domestic MG4403 type etc..The horizontal trimmer potentiometer of RP WH7-B type.The R1 RTX-1/4W type carbon film resistor parallel connection of 4 120kD is constituted, and to reduce volume, meets power requirement；R2～R9 is used that RTX-1/8W type carbon film resistor.C1 CD11 16V type electrolysis condenser, all the other use CT1 type ceramic capacitor.The M not materials processing such as pound steel disc or latten(-tin) forms.
The circuit board welded, is directly loadable in the base cavity of the commercially available common incandescent desk lamp being intended to transformation.Specific practice is: the former mechanical switch of desk lamp of dismantling, by a', b tri-lead risers of c' circuit board connect people's table lamp circuit；M seccotine is pasted onto the position being removed switch, and this is not only easy to use, and has beautified outward appearance；RL and VD3 then punches fixing respectively at base panel correct position place.
The circuit being welded only needs debugging light-metering part: connect desk lamp power supply, a normal luminance meter is placed in pupil reading and writing position, regulate light (under dark surrounds) slightly lower again to acceptable minimum brightness, then regulate RP resistance and make VD3 just extinguish.If the touch sensitivity of M is inadequate, can be adjusted by suitably increasing R4 resistance；Otherwise, when the touch sensitivity of M is too high, then adjusted by suitably reducing R4 resistance.R4 value is typically between 220～680k ￡ l.
During use, if it find that touch during M reactionless, only need to exchange desk lamp plug position in 220V electric main socket and just may be used.Owing to VD3 is constantly in luminance under dark surrounds, so also having concurrently in power supply indicator function and dark to the function of M touch sheet position on owner's indicator console lamp socket.
What finally illustrate is, above example is only in order to illustrate technical scheme and unrestricted, although by referring to the preferred embodiments of the present invention, invention has been described, but it will be understood by those within the art that, in the form and details it can be made various change, without departing from the spirit and scope that the present invention limits.
Claims (4)
1. there is the touch lamp dimmer of vision care function, it is characterised in that: include power circuit and the touch switch circuit IC1 being connected respectively, Schmidt trigger circuit, soft-touch control and photoresistor RL with power circuit；Described touch switch circuit IC1 is connected with soft-touch control by resistance；It is connected with Schmidt trigger circuit after the resistance of described photoresistor RL serial adjustable；Described Schmidt trigger circuit is connected with touch switch circuit IC1.
2. the touch lamp dimmer having vision care function according to claim 1, it is characterised in that: described Schmidt trigger circuit includes the first audion VT1 and the second audion VT2；
Described first audion VT1 base stage is connected to the points of common connection of serial adjustable resistance and photoresistor RL；
The described base stage of the second audion VT2 is connected with the colelctor electrode of the first audion, ground connection after the colelctor electrode series connection light emitting diode of described second audion VT2, being connected with the emitter stage of the first audion after the emitter stage series resistance of described second audion VT2, the emitter stage of described first audion is connected with power circuit by resistance.
3. the touch lamp dimmer having vision care function according to claim 1, it is characterized in that: also include bidirectional thyristor, described bidirectional thyristor is connected to after connecting with lamp between power circuit two ends, and the control end of described bidirectional thyristor is connected with touch switch circuit IC1 by resistance.
4. the touch lamp dimmer having vision care function according to claim 1, it is characterised in that: described power circuit includes dropping resistor R1, commutation diode VD2, Zener diode VD1 and filter capacitor C1；
Described dropping resistor R1 and commutation diode VD2 is series between civil power inlet wire two ends, and described Zener diode VD1 is parallel between civil power inlet wire two ends, and described filter capacitor C1 is parallel between civil power inlet wire two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410752115.6A CN105744696A (en) | 2014-12-09 | 2014-12-09 | Touch type light modulation table lamp having sight protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410752115.6A CN105744696A (en) | 2014-12-09 | 2014-12-09 | Touch type light modulation table lamp having sight protection function |
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| Publication Number | Publication Date |
|---|---|
| CN105744696A true CN105744696A (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410752115.6A Pending CN105744696A (en) | 2014-12-09 | 2014-12-09 | Touch type light modulation table lamp having sight protection function |
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| Country | Link |
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| CN (1) | CN105744696A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106550505A (en) * | 2016-09-30 | 2017-03-29 | 广西大学 | A kind of eye-protecting desk lamp of touch-actuated stepless light adjustable |
-
2014
- 2014-12-09 CN CN201410752115.6A patent/CN105744696A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106550505A (en) * | 2016-09-30 | 2017-03-29 | 广西大学 | A kind of eye-protecting desk lamp of touch-actuated stepless light adjustable |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160706 |
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| WD01 | Invention patent application deemed withdrawn after publication |