CN205584583U - Indoor dimming system - Google Patents
Indoor dimming system Download PDFInfo
- Publication number
- CN205584583U CN205584583U CN201620082274.4U CN201620082274U CN205584583U CN 205584583 U CN205584583 U CN 205584583U CN 201620082274 U CN201620082274 U CN 201620082274U CN 205584583 U CN205584583 U CN 205584583U
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- China
- Prior art keywords
- module
- coupled
- potentiometer
- light adjusting
- resistance
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The utility model provides an indoor dimming system, includes a plurality of light sources and a shooting point, each the light source has been coupled dimmer circuit, the output of the adjustable light source of dimmer circuit, shoot and a little be provided with the photosensitive circuit, the photosensitive circuit includes adjustable master module, including a first potentiometre, an one end output threshold voltage of first potentiometre, the response module for detect and shoot illumination intensity a little and export a sample voltage, relatively the module is coupled in adjustable master module and response module, when sample voltage is higher than threshold voltage, and the output indicating signal, indicating module, including a pilot lamp, the pilot lamp is coupled worked when receiving the indicator signal. When adjusting luminance, can close other light sources, adjust one by one, accomplish the aperture illumination of whole illumination system at last, and the user only need finely tune when using according to the demand, just can guarantee the quality of shooing again.
Description
Technical field
This utility model relates to a kind of light adjusting system, is used for indoor shot, particularly to a kind of indoor light adjusting system.
Background technology
Indoor shot is because there is substantial amounts of light source, so can test photographer use light technology, is no matter shadow also colored and angle can have and much changes, and the equipment of pickup at least needs three 400 watts of foot rest photography luminaires, preferably both has soft light cover, solar panel etc..One as king light, two secondary lamps, one of them secondary lamp is responsible for the light filling of the weak side of king light, and another secondary lamp is responsible for personage rear to hair polishing or to background polishing, the change of these three light source, personage can be clapped into a high-profile or the style of environmental classes two kinds photography.
No matter reflector is to be all one of indispensable photographic part in indoor or outdoor, general reflector has two faces, one is the silver color face that reflection normally enters light, it is additionally that reflection normally enters the golden face that light is warm colour light, application for reflector is also required for a lot of skill, but change ten thousand times without leaving the original aim or stand is, we need the part being difficult to relate at external light source to photographed person to carry out light compensation, reach the equilibrium of an overall light, in pickup, the change of king light also has frontlighting, backlight and side backlight, we will carry out different light fillings according to different light changes, thus reach the effect being satisfied with most.
And typically dimming work is manually to be regulated by the indoor personnel that take pictures, and the position not regulating each light modulating device realizes light modulation rationally, but this regulative mode needs very rich experience, and there is also error by the light intensity of naked eyes identification different angles.
Utility model content
The purpose of this utility model be to provide a kind of can the most photosensitive and light adjusting system that shows.
Above-mentioned purpose of the present utility model has the technical scheme that
A kind of indoor light adjusting system, including some light sources and a shooting point, each described light source is coupled with light adjusting circuit, the output of described light adjusting circuit adjustable light sources, described shooting point is provided with photosensitive circuit, described photosensitive circuit includes adjustable reference module, and including one first potentiometer, one end of described first potentiometer exports a threshold voltage；Induction module, for detecting the intensity of illumination of shooting point and exporting a sampled voltage；Comparison module, is coupled to adjustable reference module and induction module, when sampled voltage is higher than threshold voltage, exports indication signal；Indicating module, including a display lamp, work when described display lamp is coupled to receive indication signal.
Designed by such scheme, do not interfere with the use of normal photograph optics, improvement of the present utility model, be equivalent to add original light source one light adjusting circuit, and photosensitive circuit is set in shooting point, user has only to the threshold value being adjusted to need according to demand, then check whether by increasing light illumination to reach required threshold value (reaching display lamp during threshold value bright), and complete light modulation, photosensitive circuit can only arrange one, can arrange multiple, corresponding different light source, during light modulation, other light sources can be closed, regulate one by one, finally complete the Illumination Distribution of whole illumination system, and user needs only to according to demand, it is finely adjusted the most again, ensure that quality of taking pictures.
Further: described adjustable reference module includes being sequentially connected in series the first resistance of setting, the second resistance and the first potentiometer, and the node that described first resistance and the second resistance couple is for providing threshold voltage.Ensure can improve when using the safety and reliability of use.Misoperation will not be caused because of current spike, or resistance burns out.
Further: described comparison module is configured to comparator, the positive input terminal of described comparator couples induction module, and the negative input end of described comparator couples base modules.By the setting of comparator, cost is relatively low, and response speed is very fast, is not easily susceptible to magnetic interference.
Further: described induction module is configured to illuminance transducer.There is the features such as measurement wide ranges, Linearity is good, water resistance is good, easy to use, be easily installed, long transmission distance, it is adaptable to various places, be particularly suited for the place such as agricultural greenhouse, city illumination.According to different measurement places, coordinate different ranges, the linearity is good, water resistance is good, reliability is high,
Structure is attractive in appearance, easy to install, capacity of resisting disturbance is strong.
Further: described light adjusting circuit includes rectification module, it is coupled to light source, exports the positive pulse voltage in response to external ac power source change；Relaxation oscillator, is coupled to rectification module, provides a driving electric current to control light source works in response to positive pulse voltage, and described relaxor includes the second potentiometer, and described second potentiometer drives the size of electric current for regulating.Being worked by rectification module response light source, power supply is normal, does not interferes with simultaneously.
Further: described relaxor also includes the first IGCT, the two ends of described first IGCT receive positive pulse voltage；Unijunction transistor, its first base stage is coupled to the control pole of described first IGCT；Relaxation electric capacity, is series at described second potentiometer and is connected to the emitter stage of described unijunction transistor, and described relaxation electric capacity and the second potentiometer are coupled to the first base stage and second base stage of single-unit transistor respectively by some resistance.By so arranging, it is ensured that voltage synchronous, degree of regulation is higher.
Further: between anode and described second potentiometer of described first IGCT, be also coupled to current limiting resistance.By the setting of current-limiting resistance, it is ensured that the electric current flowing through relaxor is less.
In sum, this utility model is had the advantages that and is designed by such scheme, do not interfere with the use of normal photograph optics, improvement of the present utility model, be equivalent to add original light source one light adjusting circuit, and photosensitive circuit is set in shooting point, user has only to the threshold value being adjusted to need according to demand, then check whether by increasing light illumination to reach required threshold value (reaching display lamp during threshold value bright), and complete light modulation, photosensitive circuit can only arrange one, can arrange multiple, corresponding different light source, during light modulation, other light sources can be closed, regulate one by one, finally complete the Illumination Distribution of whole illumination system, and user needs only to according to demand, it is finely adjusted the most again, ensure that quality of taking pictures.
Accompanying drawing explanation
Fig. 1 is indoor situations schematic diagram；
Fig. 2 is light adjusting circuit schematic diagram；
Fig. 3 is photosensitive circuit schematic diagram.
In figure, 1, shooting point；2, light source；100, photosensitive circuit；111, illuminance transducer；112, base modules；113, comparison module；114, indicating module；201, rectification module；202, relaxor.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
With reference to shown in Fig. 1, described smooth inductive circuit is arranged at an enclosure interior, described housing is provided with instruction structure, described instruction structure and the movable contact mechanical linkage of described first potentiometer, described housing is positioned at the graduation mark being provided with reflection illumination at instruction structure, when needing to regulate light source, close other light sources, regulation is to indicating desired position at structure one by one, a light source is such as needed to need luminous flux to be X, the most just instruction structure and the first potentiometer are regulated the position to X, then regulate the second potentiometer and increase illumination, until display lamp lights, finally complete the Illumination Distribution of whole illumination system, and user needs only to according to demand, it is finely adjusted the most again, ensure that quality of taking pictures.
With reference to shown in Fig. 3, photosensitive circuit includes illuminance transducer 111, and exports a sampled voltage；Base modules 112, for providing a reference voltage；Comparison module 113, is coupled to illuminance transducer 111 and base modules 112, and when sampled voltage is more than reference voltage, output performs signal；Described base modules 112 includes being sequentially connected in series the first resistance R11 of setting, the second resistance R12 and the 3rd resistance R13, and the node that described first resistance R11 and the second resistance R12 couples provides reference voltage.Described 3rd resistance R13 is adjustable resistance.Described comparison module 113 includes comparator, and the positive input terminal of described comparator receives sampled voltage, and the negative input end of described comparator receives reference voltage, when sampled voltage is more than reference voltage.The comparator of comparison module 113 is set to LM355, and the outfan of comparator couples a light emitting diode, and as indicating module, light emitting diode uses as display lamp, and the outfan of light emitting diode couples audion Q1, it is ensured that output is stable.
With reference to shown in Fig. 2, described light adjusting circuit includes rectification module, is coupled to light source, exports the positive pulse voltage in response to external ac power source change；Relaxation oscillator, is coupled to rectification module, provides a driving electric current to control light source works in response to positive pulse voltage, and described relaxor includes the second potentiometer, and described second potentiometer drives the size of electric current for regulating.Described relaxor also includes the first IGCT, and the two ends of described first IGCT receive positive pulse voltage；Unijunction transistor, its first base stage is coupled to the control pole of described first IGCT；Relaxation electric capacity, is series at described second potentiometer and is connected to the emitter stage of described unijunction transistor, and described relaxation electric capacity and the second potentiometer are coupled to the first base stage and second base stage of single-unit transistor respectively by some resistance.It is also coupled to current limiting resistance between anode and described second potentiometer of described first IGCT.nullCivil power 220V voltage is after diode VD-VD4 rectification，It is added to the A of the first IGCT VTH1、Sinuous pulsation voltage during the voltage of G end，First by current-limiting resistance R1 blood pressure lowering，It is provided to trigger circuit as DC voltage and synchronizing voltage，And relaxor is in half period，When electric capacity C1 charging voltage reaches the seal point of IGCT，Conducting state will be changed into by cut-off，Electric capacity is discharged，R2 exports a pulse，Control pole to the first IGCT VTH1，Trigger VTH1 conducting，Make current flow through bulb EL and IGCT，The size of electric current is determined by bulb EL，After turn on thyristors，The A of VTH1、The forward voltage drop of G is the least，Quit work so triggering circuit，During supply voltage zero crossing，IGCT disconnects，Start to lower half period，Electric capacity recharges，Repeat said process，And change the resistance of the second potentiometer，Just can be through the time span of turn on thyristors in this century half period，The output of regulation light source.And commutation diode VD is preferably 2CP3, the first IGCT VTH1 is preferably 3CT1A, and unijunction transistor is preferably BT33, current-limiting resistance is 51K ohm, R2 and R3 is respectively 100 ohm and 300 ohm, and relaxation electric capacity is preferably 0.022UF, and the maximum value of the second potentiometer is preferably 470 ohm.4th resistance is preferably 18K ohm.
This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; the present embodiment can be made after reading this specification by those skilled in the art as required does not has the amendment of creative contribution, but as long as all being protected by Patent Law in right of the present utility model.
Claims (7)
1. an indoor light adjusting system, including some light sources and a shooting point, it is characterised in that each described light source is coupled with light adjusting circuit, the output of described light adjusting circuit adjustable light sources, and described shooting point is provided with photosensitive circuit, and described photosensitive circuit includes
Adjustable reference module, including one first potentiometer, one end of described first potentiometer exports a threshold voltage；
Induction module, for detecting the intensity of illumination of shooting point and exporting a sampled voltage；
Comparison module, is coupled to adjustable reference module and induction module, when sampled voltage is higher than threshold voltage, exports indication signal；
Indicating module, including a display lamp, work when described display lamp is coupled to receive indication signal.
2. a kind of indoor light adjusting system as claimed in claim 1, it is characterized in that: described adjustable reference module includes being sequentially connected in series the first resistance of setting, the second resistance and the first potentiometer, and the node that described first resistance and the second resistance couple is for providing threshold voltage.
3. a kind of indoor light adjusting system as claimed in claim 1, it is characterised in that: described comparison module is configured to comparator, and the positive input terminal of described comparator couples induction module, and the negative input end of described comparator couples base modules.
4. a kind of indoor light adjusting system as claimed in claim 1, it is characterised in that: described induction module is configured to illuminance transducer.
5. a kind of indoor light adjusting system as claimed in claim 1, it is characterised in that: described light adjusting circuit includes
Rectification module, is coupled to light source, exports the positive pulse voltage in response to external ac power source change；
Relaxor, is coupled to rectification module, provides a driving electric current to control light source works in response to positive pulse voltage, and relaxor includes the second potentiometer, and described second potentiometer drives the size of electric current for regulating.
6. a kind of indoor light adjusting system as claimed in claim 5, it is characterised in that: described relaxor also includes
First IGCT, the two ends of described first IGCT receive positive pulse voltage；
Unijunction transistor, its first base stage is coupled to the control pole of described first IGCT；
Relaxation electric capacity, is series at described second potentiometer and is connected to the emitter stage of described unijunction transistor, and described relaxation electric capacity and the second potentiometer are coupled to the first base stage and second base stage of single-unit transistor respectively by some resistance.
7. a kind of indoor light adjusting system as claimed in claim 6, it is characterised in that: it is also coupled to current limiting resistance between anode and described second potentiometer of described first IGCT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620082274.4U CN205584583U (en) | 2016-01-27 | 2016-01-27 | Indoor dimming system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620082274.4U CN205584583U (en) | 2016-01-27 | 2016-01-27 | Indoor dimming system |
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| Publication Number | Publication Date |
|---|---|
| CN205584583U true CN205584583U (en) | 2016-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620082274.4U Expired - Fee Related CN205584583U (en) | 2016-01-27 | 2016-01-27 | Indoor dimming system |
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| CN (1) | CN205584583U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108805118A (en) * | 2018-06-19 | 2018-11-13 | 浙江水利水电学院 | A kind of mathematical model light source tracking light-dimming method |
-
2016
- 2016-01-27 CN CN201620082274.4U patent/CN205584583U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108805118A (en) * | 2018-06-19 | 2018-11-13 | 浙江水利水电学院 | A kind of mathematical model light source tracking light-dimming method |
| CN108805118B (en) * | 2018-06-19 | 2021-06-08 | 浙江水利水电学院 | Mathematical model light source tracking dimming method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160914 Termination date: 20190127 |
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| CF01 | Termination of patent right due to non-payment of annual fee |