CN101015233A - Led-based luminaire utilizing optical feedback color and intensity control scheme - Google Patents
Led-based luminaire utilizing optical feedback color and intensity control scheme Download PDFInfo
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Abstract
A system and method for implementing an LEA-based luminaire (100) Incorporates one or more color channels (32-n). The luminaire includes a controller (50) that uses optical sensing and feedback to control LEDs (30A) in each channel to deliver a consistent intensity and/or color output. The optical feedback loop may provide measured intensity and/or color of the luminaire's output to the luminaire controller. The controller may then adjust the current, pulse width modulation (PWM) duty cycle, or both, which are delivered to discrete color channels of the luminaire to obtain the desired intensity and/or color.
Description
The cross reference of related application
[0001] this non-provisional application requires the priority of the U.S. Provisional Application No.60/585524 that submitted on July 6th, 2004 according to 35U.S.C. § 119 (e), and its full content is attached to herein by reference.
Technical field
[0002] the present invention relates to be used for throwing light on use the light feedback control system and the scheme of lighting apparatus based on solid state light emitter.
Background technology
[0003] solid state light emitter provides benefit for traditional incandescent lamp and fluorescent lamp in some applications.Robustness, reliability and the long life of light-emitting diode (LED) is the example of these benefits.Current, solid state light emitter, as the output of the intensity of LED according to changing as factors such as temperature, service life and build dates.Therefore, in their life cycle, can not keep desired intensity and/or color based on the conventional illumination device of Solid State Source.
Summary of the invention
[0004] according to example embodiment of the present invention, LED-based lighting apparatus is adjusted the electric current that consigns to light-emitting diode (LED) in this lighting apparatus so that keep consistent color and/or strength level.The electric current of paying can be according to the measured output of LED, adjust as luminous intensity or color.
[0005] according to example embodiment, lighting apparatus comprises the adjustment equipment of the electric current that transmitter module with one or more LED and adjustment consign to transmitter module.Lighting apparatus can comprise the optical sensor of measuring LED radiation output and the controller that uses detected output control adjustment equipment according to measured output.
[0006] in another example embodiment, LED-based lighting apparatus can be in conjunction with one or more Color Channels.In this embodiment, optical sensor can be each color generation intensity output corresponding to Color Channel.
[0007] example embodiment of the present invention utilizes optical sensor to provide to feed back to control to adjust the control appliance of operation of equipment.Control appliance impels adjustment equipment to pay electric current by this way so that realize desired intensity and/or color from transmitter module.For example, control appliance can be adjusted level, pulse-width modulation (PWM) work period of the electric current of the discrete colors passage that consigns to lighting apparatus or both are so that obtain desired intensity and/or color output.
[0008] according to example embodiment, controller can receive the intensity/color settings of expectation from input equipment or the data/address bus that is connected to input equipment.This embodiment allows lighting apparatus output to be maintained at adjustable setting.
[0009] another example embodiment relates to the illuminator that comprises a plurality of lighting apparatus, and its control appliance is connected to common data-bus.
[0010] therefore, the controlling schemes of example embodiment can be used for consistent, uniform color/intensity are provided according to the present invention, and no matter float and/or lumen degeneration causing LED output variation by manufacturing variation, temperature in the life-span at lighting apparatus.
Description of drawings
[0011] Figure 1A-1C has described according to the present invention the various parts of the lighting apparatus of example embodiment;
[0012] Fig. 2 is the functional block diagram of the lighting apparatus of example embodiment according to the present invention; And
[0013] Fig. 3 describes according to example embodiment to be used in many luminaire system determining whether the message that sends comprises the flow chart of the algorithm of specific illumination equipment setting.
Embodiment
[0014] according to example embodiment, the present invention relates to have lighting apparatus based on the light source of light-emitting diode (LED), it from optical sensor receive feedback with the output of keeping lighting apparatus in aspiration level.In example embodiment, lighting apparatus uses this to feed back and adjusts the electric current that consigns to LED in the lighting apparatus and keep desired intensity and/or color to guarantee output, and no matter the variations in temperature of LED and lumen are degenerated.
[0015] in Figure 1A-1C, described aspect these parts various according to example embodiment.More particularly, Figure 1A has described the cross-sectional view of lighting apparatus 100 according to example embodiment.Figure 1B has described the linear segment of the lighting apparatus 100 of assembling, and Fig. 1 C has described the exploded view of various parts in the lighting apparatus 100.
[0016] as described in Figure 1A-1C, lighting apparatus 100 comprises shell 10, photosystem 20, comprise the transmitter module 30 based on light-emitting diode (LED) of one or more LED 30A (" LED transmitter module ") and thermal management component 40.In example embodiment, lighting apparatus 100 comprises the control module (not shown), and it is connected to one or more optical sensor (not shown).Control module and optical sensor in Fig. 2 by corresponding element 50 and 60 of being described as.
[0017] should be noted that Figure 1A-1C only is provided for illustrative purposes.For example relative size, shape and the size of parts do not limit the present invention among these figure.Absent or the appearance of various parts does not limit the present invention yet in addition.Figure 1A-1C only describes a particular exemplary embodiment, and for example wherein lighting apparatus 100 is embodied as the interior side wall lamp of aircraft cabin or the situation of ceiling light or similar devices.Yet those of ordinary skill in the art will recognize that and do not deviating under the spirit or scope of the present invention prerequisite, can carry out many variations and this illuminator is cut to the application of other type.
[0018] according to example embodiment, lighting apparatus 100 can comprise and is designed for the thermal management component 40 of dispersing in the lighting apparatus 100 heat that produces.Thermal management component 40 can comprise passive device, as fixed or be installed to the radiator on the shell 10 by shell 10.Thermal management component 40 or the extension of shell 10 self.Figure 1A-1C has described the embodiment that utilizes the radiator 40 that combines fin.Thermal management component 40 also can include source heat-dissipating equipment (not shown), as air-cooler, thermoelectric (al) cooler, heat pipe or its combination in any.In example embodiment, thermal management component 40 is designed to keep single led 30A in the lighting apparatus 100 and other electronic unit under the operating temperature of safety.
[0019] shown in Figure 1A-1C, lighting apparatus 100 also comprises light parts 20 according to example embodiment.Light parts 20 are designed to collect and the branch luminous intensity distribution from LED transmitter module 30 according to the optical mode of expectation.According to example embodiment, light parts 20 can comprise lens, reflecting element, refraction or diffuse component or its combination in any.Light parts 20 or can simply be incorporated in the packing of the single led 30A in the LED transmitter module 30.
[0020] in example embodiment, thereby light parts 20 can be configured to mix the light that desired color and pattern are provided from the light of the single reflector 30A in single Color Channel and each passage.For example light parts 20 can be used to distribute with the light that produces expectation from direct light and the catoptrical combination of LED 30A.The configuration that should be noted that the light parts of describing among Figure 1A-1C 20 only is the illustrative the present invention that is not intended to limit.How disposing light parts 20 so that produce predetermined color and/or light allocation model from one or more Color Channels will be conspicuous to those of ordinary skill in the art.
[0021] according to example embodiment, LED transmitter module 30 comprises that the discrete LED 30A of q.s is to provide desired intensity and color.LED transmitter module 30 comprises at least one Color Channel, and it comprises the LED 30A of one or more particular colors.In example embodiment, the serializable of single reflector 30A, parallel or string and electrical connection in combination in each Color Channel.Electrical connection type (serial, parallel or string and combination) at link LED 30A in each Color Channel can be selected to be fit to the power supply characteristic of lighting apparatus 100 as those of ordinary skills expect easily.
[0022] for example, lighting apparatus 100 can use the red, green, blue of series connection and white LEDs 30A to realize four corresponding chrominance channels.Yet it will be recognized by those of ordinary skills LED30A and can be configured to alternate manner to produce the desired color passage.
[0023] Fig. 2 is the functional block diagram of the lighting apparatus 100 of the example embodiment according to the present invention.According to example embodiment, the measurement that the LED 30A that control module 50 is configured to be carried out according to optical sensor 60 exports is to consign to the magnitude of current of LED30A in the control LED transmitter module 30.
[0024] with reference to figure 2, control module 50 can comprise control appliance 52, input power source regulating circuit 56 and LED driver part 58.As shown in Figure 2, control module 50 can be linked to optical sensor 60, it be positioned at or near LED transmitter module 30 so that measure the light be launched.
[0025] but Fig. 2 has illustrated that also the order wire 70 that controlled device 52 uses is so that receive desired intensity and/or color setting from the user interface (not shown).Yet in alternative, this user interface can be incorporated into controller module 50 or in lighting apparatus 100 other realized somewhere.
[0026] according to example embodiment, control appliance 52 can partly be embodied as digital processing device at least.For example, control appliance 52 can comprise microcontroller and follow software.Yet the digital processing device of other type also can be used.
[0027] in alternative exemplary embodiment, the function of each control appliance 52 all can simulated circuit and equipment and carry out.In another embodiment, control appliance 52 can comprise the digital processing device that those of ordinary skills expect easily and the combination of analog machine.
[0028] with reference to figure 2, optical sensor 60 can be configured to the output of measurement shades of colour passage 32-1...32-N (N is the quantity of Color Channel) in corresponding LED transmitter module 30, and each passage comprises the LED 30A of one or more respective color.For example, Fig. 2 has illustrated as comprising the LED transmitter module 30 of four different color channels (32-1...32-4).As mentioned above, the LED transmitter module 30 of lighting apparatus 100 can comprise the passage 32-1...32-N of single Color Channel 32-1 or a plurality of different colours.
[0029] according to example embodiment, optical sensor 60 can be single integrated circuit (IC) equipment, and it can detect a plurality of Color Channel 32-1...32-N.For example, the polychromatic light transducer 60 an of the type is a TCS230 light-to-frequency converter chip, (referring to Texas AdvancesOptoelectronic Solutions of Plano, Texas) company makes by the senior photoelectricity solution in the Dezhou in Texas Pu Lainuo city (TAOS) for it.In alternative exemplary embodiment, multi-sensor device 60 (IC or other) can be used, and each has the difference spectrum response corresponding to different colours.The example of this monochromatic sensor equipment 60 comprises the photodiode of wavelength-filtered, and it can obtain from various manufacturers.
[0030] in example embodiment, power source regulating circuit 56 is configured to provide electromagnetic interference (EMI) to suppress and filters.Power source regulating circuit 56 also can be designed to convert the input power of lighting apparatus 100 to suitable voltage and current power supply so that supply LED driver part 58 and user interface circuit and control circuit (it is comprised in the treatment facility 52 among Fig. 2).In the embodiment of Fig. 2, the input power supply is by power line 80 supplies.
[0031] in the system that comprises a plurality of lighting apparatus 100 (the aircraft cabin illuminator that for example comprises a plurality of ceiling lights and side wall lamp part), each led drive circuit 58 can be configured in order to as shown in Figure 2 power line 80 is carried out bifurcated.In this embodiment, power line 80 can be implemented by (tee-and-pass) configuration according to daisy chain, T type to the connection of various Light-Emitting Diode driver parts 58.
[0032] LED driver part 58 can provide adjustment electric current and voltage as the single supply to LED transmitter module 30 according to the control signal from control appliance 52.LED driver part 58 or can provide individually according to control signal and adjust current/voltage to each Color Channel 32-n (or its grouping).In another alternative, LED driver part 58 can be configured to provide adjusts power supply to each the independent LED30A in the LED transmitter module 30.
[0033] in example embodiment, electric current and voltage adjustment can use the combination of electric current pulse-width modulation (PWM), current amplitude modulation or two kinds of methods to realize.The use of this method is well known in the art.Yet LED driver part 58 can be realized other method of adjustment arbitrarily, and it will be easy to be expected by those of ordinary skills.
[0034] in example embodiment, the user interface (not shown) makes the user that the strength level and/or the desired color output of lighting apparatus 100 can be set.According to example embodiment, user interface can utilize analog input circuit, and it produces the variable voltage input signal of selected intensity of representative and/or color setting and is connected to control appliance 52.Yet in alternative exemplary embodiment, user interface can produce the digital signal of representing desired intensity and/or color to be provided with, and it is selected and input by the user.
[0035] user interface also can be used as the part realization of lighting apparatus 100 or is configured to long-range input equipment.It is the specific embodiment of remote equipment that Fig. 2 has described user interface, and it communicates by order wire 70 and control appliance 52.When remote user interface was used, desired intensity/color setting can communicate by data-message in the digital communication protocol and lighting apparatus 100.Yet this is provided with and can be sent out by other form.
[0036] in the described embodiment of Fig. 2, control appliance 52 can comprise the digital processing device that comprises the logic that is used to handle the message that is received from user interface.In this embodiment, the user can import the order of specifying expectation to be provided with and give remote user interface, and it is sent to control appliance 52 by communication line 70.If use simulation or optical communications protocols, digital processing device 52 can comprise the interface circuit that is used for the message from user's interface is changed into digital signal.
[0037] according to example embodiment, the user can select and the input setting by remote user interface, and it is transmitted as digital command signal by order wire 70.For example, order wire 70 can comprise the digital communication line of serial data bus or other type, and it is used to connect a plurality of lighting apparatus 100 to user interface.In this embodiment, serial data bus 70 (for example CAN, RS232 or RS485) daisy chain, the T type that can be similar to the power line 80 shown in Fig. 2 is implemented by configuration.
[0038] hereinafter employed " logic " refers to hardware (numeral or analog machine), software or its combination in any, and it is designed and is embodied as the execution specific function.According to example embodiment, control module 50 can comprise control logic, be used for from optical sensor 60 receive measured signal, more measured intensity and color and user (passing through user interface circuit) thus the expectation strength of appointment and color and generation consign to the output that the essential command signal of LED driver part 58 is kept or obtained to expect.Control logic can be carried out the special algorithm that is used to realize each function.
[0039] as mentioned above, thus digital processing device, can in control appliance 52, realize not only finishing above-mentioned controlled function but also receive and handle being provided with communication line 70 interfaces so that from remote user interface as microcontroller.In this embodiment, software can be loaded onto microprocessor to realize being used to finish one or more algorithms (being called as " control algolithm " jointly) of this function.Yet it is evident that the logic that is used to carry out this algorithm is not limited to the microcontroller executive software.
[0040] example of the control algolithm that controlled device 52 finishes will be described now.User interface can be designed to receive expectation strength and/or the color setting that is used for lighting apparatus 100 from the user.User interface also can be configured to transmit predetermined set by order wire 70 between control appliance 52.User interface or each Color Channel 32-n that can permit a user in the lighting apparatus 100LED transmitter module 30 specify setting (intensity and/or color) respectively.
[0041] consider this example, wherein user interface appointment desired intensity is provided with the control appliance 52 to lighting apparatus 100.This intensity setting can relate to total output of specific Color Channel 32-n or lighting apparatus 100.
[0042] in this example, control algolithm can be impelled control appliance 52 setting that relatively receives and the measured intensity output that receives from transducer 60.For example, control appliance 52 can use the measurement that receives recently from optical sensor 60 in relatively at this, waits for up to receive next from optical sensor 60 and measuring, or order optical sensor 60 to produce another measurement that is used for comparison at once.With being provided with after the comparison of measured intensity and expectation, control appliance 52 can produce control signal according to difference between the two.According to example embodiment, this control signal can be sent to LED driver part 58, the electric current that it is paid according to the control signal adjustment.More particularly, LED driver part 58 can be configured to adjust and consigns to the electric current of LED transmitter module 30 (or wherein specific Color Channel 32-n) so that reduce basically or eliminate measured intensity and the expectation difference between being provided with.
[0043] consider another example, wherein user interface transmission desired color is provided with to control appliance 52.As pointed in the example in front, color setting that control appliance 52 can relatively receive and the color measuring that receives recently that is used for comparison.Control appliance 52 or can wait for from next of optical sensor 60 and measuring finishing comparison, or order optical sensor 60 to produce another measurements at once so that compare with the setting that receives.
[0044] optical sensor 60 can be configured to measure the color output from lighting apparatus 100 or single Color Channel 32-n wherein.According to example embodiment, optical sensor 60 can be configured to by measuring the color output that the intensity of each is measured single passage 32-n in a plurality of color detection elements (for example red, blue, green and white).Optical sensor 60 also can be configured to measure radiative overall strength.Therefore according to the ratio of measured color intensity about overall strength, optical sensor 60 (perhaps control appliance 52) can be configured to produce total color measuring.
[0045] by each element (for example red, green, blue and white) the single assessment Color Channel 32-n and definite from the ratio between the various readings of element with optical sensor 60, the wavelength shift of distinguishing Strength Changes and LED30A is possible.This is distinguished and may realize by using monochromatic sensor 60.In this embodiment, can be synchronous so that under the state of only connecting passage 32-n, assess each Color Channel 32-n from the reading of optical sensor 60 with the pulse width modulation cycle of LED driver part 58.How to design control algolithm for those of ordinary skills so that distinguish intensity and wavelength change is conspicuous according to detected color intensity ratio.
[0046] as previously mentioned, optical sensor 60 can comprise that the polychrome checkout equipment maybe can produce the integrated circuit that polychrome is measured.Perhaps a plurality of monochromatic sensors 60 (for example red, green and white transducer) can be used, and each produces a color measuring.For this illustrative purposes, term " optical sensor " can refer to be used for wherein a plurality of transducers on the whole and be used to provide the embodiment of measurement to the control appliance 52 of lighting apparatus 100.
[0047] measured color and desired color are provided with after the comparison, the difference between control appliance 52 can be provided with according to measured color and expectation produces control signal.This control signal can be sent to LED driver part 58, thereby it is adjusted the electric current that sends to lighting apparatus 100 or monochromatic passage 32-n in some way and reduces basically or eliminate difference.
[0048] according to example embodiment, the control algolithm of control appliance 52 can be designed so that be lighting apparatus 100 reception desired intensity setting and color settings.In this embodiment, control appliance 52 can be configured to produce and be used to adjust by lighting apparatus 100 or the light color of its particular color passage 32-n emission and the control signal of overall strength.
[0049] thus it is conspicuous how disposing control appliance 52 and LED driver part 58 for those of ordinary skills so that produce the control signal of expectation and adjust intensity and/or the color that electric current adjusts by lighting apparatus 100 or particular color passage 32-n emission.In addition, all tangible changes of above-mentioned control algolithm are contained in the present invention.For example, how to use for those of ordinary skills the present invention can with principle so that intensity and/or the color measured and be adjusted in the LED transmitter module 30 by single led 30A emission are conspicuous.
[0050] according to example embodiment, control algolithm can be designed to repeat the measured output intensity/color of comparison LED transmitter module 30 outputs and the user's setting that receives recently.For example, this inspection can be to be implemented in cycles of a few minutes according to the duration.Therefore even when not having new setting when the user receives, control module can according to as lumen is degenerated and variations in temperature adjustment lighting apparatus is exported.
[0051] control algolithm of control appliance 52 also can comprise other function.For example in the illuminator of many lighting apparatus, the control logic of each lighting apparatus 100 may need to analyze the purpose identifier of the message bag that sends on order wire 70.This can be required for the user's setting that determines whether the message bag and comprise and be intended to be used for that lighting apparatus 100.
[0052] according to example embodiment, each the message bag that sends on data/address bus 70 can comprise the address field on identification its intended purposes ground.This address field can comprise packet identifier (GID).For example, the different subclass of lighting apparatus 100 can be collected at together according to specific GID in many luminaire system.If the message bag comprises the setting that is used for lighting apparatus 100 particular subset, then the GID of this subclass will be included in the address field.Therefore the message bag will be broadcast to the subclass of the lighting apparatus 100 of appointment on data/address bus 70.On the contrary, if the message bag is not intended to be used for the particular subset by the lighting apparatus of general GID identification, then the GID territory of address field can be set to sky.
[0053] in another example embodiment, address field also can correspondingly comprise the territory that is used for type identifier (TID) and unique identifier (UID).In this embodiment, each lighting apparatus 100 is assigned with TID and UID.A plurality of lighting apparatus 100 of same type will be assigned with identical TID.Yet each lighting apparatus 100 is assigned with its UID.
[0054] in example embodiment, the message bag that comprises sky GID of each transmission will carry non-NULL TID.Yet this bag can comprise sky UID.For example, if the message bag is sent to each lighting apparatus 100 of corresponding particular type (being TID), then UID will be sky.Yet if the message bag is sent to single lighting apparatus 100, address field will comprise the TID and the UID of this lighting apparatus 100.
[0055] Fig. 3 has described the flow chart of algorithm, determines by its lighting apparatus 100 whether the message bag that sends comprises the setting that is used for this lighting apparatus 100 in many luminaire system.Shown in S10, control appliance 52 is analyzed the address field of the message bag that sends.Shown in S20, control appliance 52 determines at first whether address field comprises the GID of the GID that mates lighting apparatus 100.If the GID of message bag is complementary, then data (being intensity/color settings) can be extracted (S70) from bag.Otherwise, handle proceeding to S30.
[0056] whether in S30, having provided about the GID territory in the packet address section is empty determining.If the GID territory is empty, then control appliance 52 continues to analyze TID territory (S40).Yet,, wrap can be left in the basket (S80) if the GID territory comprises the non-null value of the GID of the lighting apparatus 100 that do not match.
[0057] in S40, provided the determining of TID that whether mates lighting apparatus 100 about TID in the address field.If do not match, then wrap to be left in the basket (S80).
[0058] yet, if TID coupling, the UID of address field is examined according to S50.If UID is empty, then other lighting apparatus that is provided for lighting apparatus 100 and same type in the bag.Therefore this is provided with according to S70 and is extracted.Yet, if UID territory non-NULL handles proceeding to S60.
[0059] according to S60, if the UID of the coupling of the UID in packet address section lighting apparatus 100 represents that then the message bag is used in particular for lighting apparatus 100.Therefore lighting apparatus 100 extracts from bag (S70) is set.The UID of the lighting apparatus 100 if UID of bag does not match then wraps be left in the basket (S80).
[0060] example embodiment simultaneously, should be noted that these embodiment do not limit the present invention as described above.Do not deviating under the spirit and scope of the present invention prerequisite, can carry out various modifications and change the foregoing description.
[0061] for example, when embodiment described the user interface that the desired intensity that allows the user to be provided for lighting apparatus 100 or color be provided with in the above, the present invention was therefore not limited.For example, the setting that is used for lighting apparatus can be mounted and be stored in the memory or the memory device of control module 50.Perhaps be provided with and for example determined automatically by the treatment system executive software.For example, setting can be used as factor such as the moment, ambient brightness and determine automatically.
[0062], provides the particular exemplary embodiment of lighting apparatus 100 below in the explanation only in order to describe.
[0063] in this embodiment, the LED transmitter module 30 of each lighting apparatus 100 can be included in red, green, blue and the white LEDs 30A that connects in four chrominance channels.Four all chrominance channels can by the TCS230 light-to-frequency converter detected, and by lighting apparatus 100 control modules 50 based on the software Be Controlled in the treatment facility 52 of microcontroller.Software is used in 16 pulse-width modulation led drivers 58 of order in the control module 50.Element in the control module 50 can be installed on the shell 10 that comprises radiator 12 together with in LED transmitter module 30 those.Reflector can be realized in shell, and the optics that the light parts 20 of lighting apparatus 100 can comprise simply to the reflector Packing Intact maybe can comprise lens essential in any geometry so that light is guided into the position of expectation.
Claims (12)
1. a lighting apparatus (100) comprising:
Transmitter module (30) comprises the light source based on light-emitting diode (LED);
Optical sensor (60) is configured to export by the intensity of measuring described transmitter module and produces measured output; And
Adjustment equipment (58) is configured to according to relatively adjusting the electric current that consigns to described transmitter module between the described measured output of described transmitter module and the optional predetermined light setting.
2. the described lighting apparatus in the claim 1, wherein said optional predetermined light setting comprises the predetermined strength setting, and described lighting apparatus also comprises:
Control appliance (52) is configured to
More described measured output and predetermined strength setting; And
Produce control signal according to described measured output and the difference between the setting of described predetermined strength, described control signal is sent to the electric current that described adjustment equipment is paid with adjustment,
Thereby wherein said adjustment equipment is configured to adjust the electric current that consigns to described transmitter module reduces the output of described intensity and the described predetermined strength difference between being provided with.
3. the described lighting apparatus in the claim 1, wherein
Described transmitter module comprises at least one Color Channel (32-n), and each Color Channel comprises at least one LED (30A), and
Described optical sensor is configured to produce described measured output by measuring to export corresponding to the intensity of each in a plurality of colors of described at least one Color Channel.
4. the described lighting apparatus in the claim 3 also comprises the control appliance (52) of determining described color intensity output ratio and controlling described adjustment equipment according to determined ratio.
5. the described lighting apparatus in the claim 4, wherein said optional predetermined light setting comprises the predetermined color setting, and described control appliance is configured to:
Determine the color output of described transmitter module according to determined color intensity output ratio;
More described color output and predetermined color setting; And
Produce control signal according to the difference between described color output and the setting of described predetermined color, thereby described control signal is sent to the electric current that the adjustment of described adjustment equipment is paid, and
Thereby described adjustment equipment is configured to adjust the electric current that consigns to described transmitter module reduces the output of described color and the described predetermined color difference between being provided with.
6. the described lighting apparatus in the claim 5, wherein
Described optical sensor is configured to export and produce described measured output by measuring overall strength except described color intensity output, and
Described control appliance is configured to:
More described overall strength output and predetermined strength setting; And
Produce described control signal according to the difference between the difference between described overall strength output and the described predetermined strength setting and output of described color and the described predetermined color setting, and
Thereby described adjustment equipment is configured to adjust the electric current that consigns to described transmitter module reduces the difference of described overall strength output between being provided with described predetermined strength, and reduces the difference between described color output and the setting of described predetermined color.
7. the described lighting apparatus in the claim 5, wherein
To input equipment, described input equipment is used to select described predetermined color setting to described control appliance by communication linkage,
Described optical sensor is configured to measure in a plurality of Color Channels at predetermined space the intensity of each, and
For each described predetermined space, described control appliance is configured to:
Described color output is determined in described color intensity output according to described predetermined space,
More described color output and the described predetermined color setting that receives recently from described input equipment, and
Produce described control signal, it is sent to described adjustment equipment according to the difference between described input color parameter that receives recently and the output of described color.
8. the described lighting apparatus in the claim 5, wherein said optical sensor comprise that polychrome detects integrated circuit.
9. the described lighting apparatus in the claim 5, wherein said optical sensor comprises one or more color detection equipment, each can detect the intensity of at least a color.
10. the described lighting apparatus in the claim 5, at least one in wherein said adjustment equipment utilization direct current (DC) control and the pulse-width modulation (PWM) consigns to the electric current of described transmitter module with adjustment.
11. the described lighting apparatus in the claim 5 also comprises:
Shell (10); And
Thermal management component (40);
Wherein said shell guarantees that described thermal management component is in the position with respect to described transmitter module of the described thermal management component of permission from described transmitter module heat radiation.
12. the described lighting apparatus in the claim 11, wherein said thermal management component comprise following at least one: radiator, heat pipe, air-cooler and thermoelectric (al) type cooling device.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US58552404P | 2004-07-06 | 2004-07-06 | |
| US60/585,524 | 2004-07-06 | ||
| US11/113,539 | 2005-04-25 |
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| CN101015233A true CN101015233A (en) | 2007-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200580028410.6A Pending CN101015233A (en) | 2004-07-06 | 2005-07-06 | Led-based luminaire utilizing optical feedback color and intensity control scheme |
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| CN113390610A (en) * | 2020-03-11 | 2021-09-14 | 三赢科技（深圳）有限公司 | Light source device and light uniformity real-time monitoring system thereof |
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2005
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| CN109580631A (en) * | 2018-11-22 | 2019-04-05 | 成都市鹰诺实业有限公司 | A method of measured object surface differences are determined using light intensity |
| CN110113835A (en) * | 2019-03-27 | 2019-08-09 | 深圳市杰普特光电股份有限公司 | LED light source control device, method, light source assembly and photoelectric sphyg detection device |
| WO2020192694A1 (en) * | 2019-03-27 | 2020-10-01 | 深圳市杰普特光电股份有限公司 | Led light source control device and method, light source assembly and photoelectric pulse detection device |
| CN113390610A (en) * | 2020-03-11 | 2021-09-14 | 三赢科技（深圳）有限公司 | Light source device and light uniformity real-time monitoring system thereof |
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