CN203340393U - Lighting device with constant optical power - Google Patents
Lighting device with constant optical power Download PDFInfo
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- CN203340393U CN203340393U CN201320292867XU CN201320292867U CN203340393U CN 203340393 U CN203340393 U CN 203340393U CN 201320292867X U CN201320292867X U CN 201320292867XU CN 201320292867 U CN201320292867 U CN 201320292867U CN 203340393 U CN203340393 U CN 203340393U
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Abstract
The utility model puts forward a lighting device with constant optical power. The lighting device with constant optical power comprises a grid electricity input module, a voltage transformation circuit, a high voltage circuit, a light output module, a light intensity detection module, and a main control circuit, wherein the grid electricity input module is connected with the voltage transformation circuit, voltage input by the grid electricity input module is transformed through the voltage transformation circuit, the voltage transformation circuit is connected with the high voltage circuit which is used for boosting the voltage transformed by the voltage transformation circuit to working voltage, the high voltage circuit is connected with the light output module which is used for generating light output signals, illuminating effects are realized through the light output module, the light output module is connected with the light intensity detection module which is used for detecting the light intensity of the light signals sent out by the light output module, the light intensity detection module is connected with the main control circuit which is connected with the voltage transformation circuit, the main control circuit is used for determining whether detected light intensity accords with a preset light intensity value and is used for outputting voltage transformation circuit adjusting signals according to the determined value, and the main control circuit is used for adjusting the output voltage of the voltage transformation circuit.
Description
Technical field
The utility model belongs to the optics medical field, is specifically related to the light-emitting device that a kind of luminous power is constant.
Background technology
308nm quasi-molecule photo-therapeutic instrument is the therapeutic equipment that is applied at present skin disease (psoriasis, leucoderma etc.) treatment field.Find similar devices on the market in development process, the light sent and luminous intensity all can be with the prolongation of service time significantly decay or in use fluctuation, cause clinical reference significance little, affect the judgement of doctor to treatment results, damage skin when serious, produce the unfavorable factors such as conflict between doctors and patients.Its basic reason is that the control mode that they adopt is that open loop control mode causes.
The utility model content
The utility model is intended at least solve the technical problem existed in prior art, has proposed to special innovation the light-emitting device that a kind of luminous power is constant.
Problem to be solved in the utility model allows 308nm quasi-molecule light intensity that photo-therapeutic instrument sends want substantially constant exactly, can be because of the variation of time, and fluctuation or decay to some extent.
In order to realize above-mentioned purpose of the present utility model, the utility model provides the light-emitting device that a kind of luminous power is constant, comprising: net electric input module, transforming circuit, high-tension circuit, light output module, luminous intensity detection module and governor circuit;
The electric input module of described net connects transforming circuit, and the voltage that described net electricity input module is inputted carries out voltage transformation by transforming circuit;
Described transforming circuit connects high-tension circuit, and described high-tension circuit is elevated to operating voltage for the voltage that transforming circuit is converted;
Described high-tension circuit connects the light output module, and described smooth output module produces optical output signal, by the light output module, carries out the illumination effect;
Described smooth output module connects the luminous intensity detection module, carries out the detection of luminous intensity for the light signal that the light output module is sent;
Described luminous intensity detection module connects governor circuit, described governor circuit connects transforming circuit, the luminous intensity that described governor circuit judgement detects judges whether to meet default light intensity value and exports the transforming circuit conditioning signal according to described judgment value, for the transforming circuit output voltage is regulated.
The beneficial effect of technique scheme is: adopt the luminous intensity of sending after the utility model technology or else can decay with the prolongation of service time or in use have great fluctuation process, final effect be exactly do not affect medical personnel to its equipment precisely use and to patient's significant curative effect.
The light-emitting device that described luminous power is constant, preferred, transforming circuit comprises: rectification circuit and inverter circuit;
Described rectification circuit is connection network electricity input module and inverter circuit respectively, for the alternating current that will net electric input module, by rectification circuit, is converted to direct current, at the alternating current that is converted to described device use by inverter circuit.
The beneficial effect of technique scheme is: by the collaborative work of rectification circuit and inverter circuit, by netting electric output voltage, be adjusted into the supply voltage that this device can be used.
The light-emitting device that described luminous power is constant, preferred, described rectification circuit is bridge rectifier.
The beneficial effect of technique scheme is: rectification circuit uses bridge rectifier can better carry out rectified action.
The light-emitting device that described luminous power is constant, preferred, described inverter circuit is voltage source type inverter.
The beneficial effect of technique scheme is: inverter circuit is used voltage source type inverter, can realize that this device is to high-tension circuit output required voltage.
The light-emitting device that described luminous power is constant, preferred, described smooth output module comprises: quasi-molecule light modulation, black light sources or lasing light emitter.
The beneficial effect of technique scheme is: this installs preferred light source is the quasi-molecule light modulation, but is not limited in actual applications the quasi-molecule light modulation, can also use black light sources and lasing light emitter.
The light-emitting device that described luminous power is constant, preferred, described its optical power density of quasi-molecule light modulation 30mW/cm
2, irradiated area is 60mm * 120mm.
The beneficial effect of technique scheme is: its optical power density 30mW/cm when using the quasi-molecule light modulation
2, irradiated area is while being 60mm * 120mm, can better play the dermopathic effect for the treatment of.
The light-emitting device that described luminous power is constant, preferred, described governor circuit comprises: timer; Described timer connects the luminous intensity detection module, do not meet default light intensity value for the light signal detected when the luminous intensity detection module, regularly calculate the PID increment by timer, regulate frequency and the PWM duty ratio of transforming circuit output voltage by governor circuit.
The beneficial effect of technique scheme is: calculate the PID increment by the timing to timer, and frequency and the PWM duty ratio of regulating the transforming circuit output voltage by governor circuit, thus control inverter circuit, make high-tension circuit export default magnitude of voltage.
In sum, owing to having adopted technique scheme, the beneficial effects of the utility model are:
The beneficial effects of the utility model be exactly 308nm quasi-molecule photo-therapeutic instrument adopt the luminous intensity of sending after the utility model technology or else can decay with the prolongation of service time or in use have great fluctuation process, final effect be exactly do not affect medical personnel to its equipment precisely use and to patient's significant curative effect.
Additional aspect of the present utility model and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
The accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is the light-emitting device schematic diagram that the utility model luminous power is constant;
Fig. 2 is that in the light-emitting device that the utility model luminous power is constant, timer calculates PID increment method flow chart;
Fig. 3 is the light-emitting device figure that the utility model luminous power is constant.
Embodiment
Below describe embodiment of the present utility model in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label means same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " vertically ", " laterally ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
In description of the present utility model, unless otherwise prescribed and limit, it should be noted that, term " installation ", " being connected ", " connection " should be done broad understanding, for example, can be mechanical connection or electrical connection, can be also the connection of two element internals, can be directly to be connected, and also can indirectly be connected by intermediary, for the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term.
It is that technical close-loop control mode and the PID of having adopted regulates that the utility model solves the technical scheme that its technical problem adopts.The deviation that the luminous intensity of output occurs, it is former because the outer power voltage shakiness, the variations of the performance parameter of device device etc., all can cause luminous intensity to produce deviation, if once deviation appears in the luminous intensity of output, PID regulates and produces immediately regulating action, according to the light intensity value fed back, after software is processed, through control circuit, output bias is reduced, constant to reach output.
The following Fig. 1 of the circuit block diagram of technical solutions of the utility model, it is comprised of parts such as the electric input module of net, rectification circuit, inverter circuit, high-tension circuit, light output module, luminous intensity detection module, governor circuits." governor circuit " basis " luminous intensity detection " electric circuit inspection luminous intensity size out, and the frequency that changes " inverter circuit " is big or small and the duty ratio of PWM, the high pressure of being exported to change " high-tension circuit ", thus light and the luminous intensity that fluorescent tube sends changed.This is a close-loop control mode, once purpose be exactly find output the luminous intensity height or low, just can allow luminous intensity lower or rise through this closed loop, thereby it is invariable to reach sent light.
The utility model provides the light-emitting device that a kind of luminous power is constant, comprising: net electric input module, transforming circuit, high-tension circuit, light output module, luminous intensity detection module and governor circuit;
The electric input module of described net connects transforming circuit, and the voltage that described net electricity input module is inputted carries out voltage transformation by transforming circuit;
Described transforming circuit connects high-tension circuit, and described high-tension circuit is elevated to operating voltage for the voltage that transforming circuit is converted;
Described high-tension circuit connects the light output module, and described smooth output module produces optical output signal, by the light output module, carries out the illumination effect;
Described smooth output module connects the luminous intensity detection module, carries out the detection of luminous intensity for the light signal that the light output module is sent;
Described luminous intensity detection module connects governor circuit, described governor circuit connects transforming circuit, the luminous intensity that described governor circuit judgement detects judges whether to meet default light intensity value and exports the transforming circuit conditioning signal according to described judgment value, for the transforming circuit output voltage is regulated.
The beneficial effect of technique scheme is: adopt the luminous intensity of sending after the utility model technology or else can decay with the prolongation of service time or in use have great fluctuation process, final effect be exactly do not affect medical personnel to its equipment precisely use and to patient's significant curative effect.
The light-emitting device that described luminous power is constant, preferred, transforming circuit comprises: rectification circuit and inverter circuit;
Described rectification circuit is connection network electricity input module and inverter circuit respectively, for the alternating current that will net electric input module, by rectification circuit, is converted to direct current, at the alternating current that is converted to described device use by inverter circuit.
The beneficial effect of technique scheme is: by the collaborative work of rectification circuit and inverter circuit, by netting electric output voltage, be adjusted into the supply voltage that this device can be used.
The light-emitting device that described luminous power is constant, preferred, described rectification circuit is bridge rectifier.
The beneficial effect of technique scheme is: rectification circuit uses bridge rectifier can better carry out rectified action.
The light-emitting device that described luminous power is constant, preferred, described inverter circuit is voltage source type inverter.
The beneficial effect of technique scheme is: inverter circuit is used voltage source type inverter, can realize that this device is to high-tension circuit output required voltage.
The light-emitting device that described luminous power is constant, preferred, described smooth output module comprises: quasi-molecule light modulation, black light sources or lasing light emitter.
The beneficial effect of technique scheme is: this installs preferred light source is the quasi-molecule light modulation, but is not limited in actual applications the quasi-molecule light modulation, can also use black light sources and lasing light emitter.
The light-emitting device that described luminous power is constant, preferred, described its optical power density of quasi-molecule light modulation 30mW/cm
2, irradiated area is 60mm * 120mm.
The beneficial effect of technique scheme is: its optical power density 30mW/cm when using the quasi-molecule light modulation
2, irradiated area is while being 60mm * 120mm, can better play the dermopathic effect for the treatment of.
The light-emitting device that described luminous power is constant, preferred, described governor circuit comprises: timer; Described timer connects the luminous intensity detection module, do not meet default light intensity value for the light signal detected when the luminous intensity detection module, regularly calculate the PID increment by timer, regulate frequency and the PWM duty ratio of transforming circuit output voltage by governor circuit.
The beneficial effect of technique scheme is: calculate the PID increment by the timing to timer, and frequency and the PWM duty ratio of regulating the transforming circuit output voltage by governor circuit, thus control inverter circuit, make high-tension circuit export default magnitude of voltage.
In this system, be to adopt timer regularly to calculate the PID increment, and regulate the duty ratio of PWM as Rule of judgment.
The PID computing formula is:
u(k)=u(k-1)+a0e(k)+a1e(k-1)+a2e(k-2)
Wherein:
a0=Kp+Ki+Kd=Kp*[1+T/Ti+Td/T]；
a1=-Kp 2Kd=-Kp*[1+2Td/T]；
a2=Kd=Kp*Td/T。
In device described in the utility model, provide a kind of method of the constant light intensity that allows 308nm quasi-molecule photo-therapeutic instrument send, as shown in Figure 2.
The PID increment calculated is:
S01, after initialization, start to calculate;
S02, calculation deviation e (k)=expected data-image data, k is natural number;
S03, according to | e (k) | > limits of error;
S04, if | e (k) | be greater than the limits of error, calculate controlling increment p*e (k-2)=e (k-1) * e (k-1)=e (k);
S05, | p| > permissible error;
S06, if | when p| is greater than permissible error, work as p > permissible error, execution step S07, when p≤permissible error, execution step S08;
S07, increase the PWM duty ratio;
S08, reduce the PWM duty ratio.
The beneficial effects of the utility model be exactly 308nm quasi-molecule photo-therapeutic instrument adopt the luminous intensity of sending after the utility model technology or else can decay with the prolongation of service time or in use have great fluctuation process, final effect be exactly do not affect medical personnel to its equipment precisely use and to patient's significant curative effect.
Shown in figure below Fig. 3, the light-emitting device that described luminous power is constant is 308nm quasi-molecule photo-therapeutic instrument, is the therapeutic equipment that current domestic initiation is applied to the treating skin disease field, such as psoriasis, leucoderma etc.In these technological innovations such as luminous power conservation, especially big treatment area and perfect in shape and function, product more is better than similar.
In the company of quasi-molecule light medical application fields in taking the lead in race, be the large-scale companies such as U.S. Theralight, Italian DEKA, U.S. PhotoMedex, U.S. VTRAC in the world at present.The domestic brand that also there is no oneself is now sold, and only has DuaLight to sell at home.308 quasi-molecule photo-therapeutic instruments of the described device level that is in a leading position above technology at this, and there is the superiority on different emphasis.Described device has not only been drawn the advantage of external advanced company each side, and makes breakthrough innovation, particularly utilizes the utility model and the optical power density conservation (30mW/cm that makes
2), on especially big treatment area (60mm * 120mm), make therapeutic equipment light source select and process and export on be better than like product, also at aspects such as the rational hommizations of complete machine, have more competitive advantage.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: in the situation that do not break away from principle of the present utility model and aim can be carried out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claim and equivalent thereof.
Claims (7)
1. the light-emitting device that luminous power is constant, is characterized in that, comprising: net electric input module, transforming circuit, high-tension circuit, light output module, luminous intensity detection module and governor circuit;
The electric input module of described net connects transforming circuit, and the voltage that described net electricity input module is inputted carries out voltage transformation by transforming circuit;
Described transforming circuit connects high-tension circuit, and described high-tension circuit is elevated to operating voltage for the voltage that transforming circuit is converted;
Described high-tension circuit connects the light output module, and described smooth output module produces optical output signal, by the light output module, carries out the illumination effect;
Described smooth output module connects the luminous intensity detection module, carries out the detection of luminous intensity for the light signal that the light output module is sent;
Described luminous intensity detection module connects governor circuit, described governor circuit connects transforming circuit, the luminous intensity that described governor circuit judgement detects judges whether to meet default light intensity value and exports the transforming circuit conditioning signal according to described judgment value, for the transforming circuit output voltage is regulated.
2. the constant light-emitting device of luminous power according to claim 1, is characterized in that, transforming circuit comprises: rectification circuit and inverter circuit;
Described rectification circuit is connection network electricity input module and inverter circuit respectively, for the alternating current that will net electric input module, by rectification circuit, is converted to direct current, at the alternating current that is converted to described device use by inverter circuit.
3. the constant light-emitting device of luminous power according to claim 2, is characterized in that, described rectification circuit is bridge rectifier.
4. the constant light-emitting device of luminous power according to claim 2, is characterized in that, described inverter circuit is voltage source type inverter.
5. the constant light-emitting device of luminous power according to claim 1, is characterized in that, described smooth output module comprises: quasi-molecule light modulation, black light sources or lasing light emitter.
6. the constant light-emitting device of luminous power according to claim 5, is characterized in that, described its optical power density of quasi-molecule light modulation 30mW/cm
2, irradiated area is 60mm * 120mm.
7. the constant light-emitting device of luminous power according to claim 1, is characterized in that, described governor circuit comprises: timer; Described timer connects the luminous intensity detection module, do not meet default light intensity value for the light signal detected when the luminous intensity detection module, regularly calculate the PID increment by timer, regulate frequency and the PWM duty ratio of transforming circuit output voltage by governor circuit.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104244532A (en) * | 2014-09-29 | 2014-12-24 | 无锡昊瑜节能环保设备有限公司 | Control method of tunnel lighting energy saving system |
| CN104623814A (en) * | 2015-02-17 | 2015-05-20 | 上海希格玛高技术有限公司 | Portable ultraviolet phototherapy apparatus |
| CN106390298A (en) * | 2016-10-20 | 2017-02-15 | 上海希格玛高技术有限公司 | High-reliability medical control system |
| CN106730380A (en) * | 2016-11-22 | 2017-05-31 | 安徽航天生物科技股份有限公司 | The constant control device of far infrared therapeutic apparatus radiation assembly radiation wavelength, intensity |
-
2013
- 2013-05-24 CN CN201320292867XU patent/CN203340393U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104244532A (en) * | 2014-09-29 | 2014-12-24 | 无锡昊瑜节能环保设备有限公司 | Control method of tunnel lighting energy saving system |
| CN104623814A (en) * | 2015-02-17 | 2015-05-20 | 上海希格玛高技术有限公司 | Portable ultraviolet phototherapy apparatus |
| CN104623814B (en) * | 2015-02-17 | 2017-05-03 | 上海希格玛高技术有限公司 | Portable ultraviolet phototherapy apparatus |
| CN106390298A (en) * | 2016-10-20 | 2017-02-15 | 上海希格玛高技术有限公司 | High-reliability medical control system |
| CN106730380A (en) * | 2016-11-22 | 2017-05-31 | 安徽航天生物科技股份有限公司 | The constant control device of far infrared therapeutic apparatus radiation assembly radiation wavelength, intensity |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170630 Address after: Baoan District Xin'an street Shenzhen city Guangdong province 518101 68 district left three road Changfeng Industrial Park F2 building 3 floor A block Patentee after: Shenzhen Peninsula Medical Co.,Ltd. Address before: Jiulongpo Branch Park four street 400041 Chongqing city 70-1, 70-2 block I No. two No. 2-4 Patentee before: CHONGQING DERMA OPTIC AND ELECTRONIC TECHNIQUE Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131211 |