CN106195656B - The operation shadowless lamp of colour temperature and brightness is adjusted according to human eye state - Google Patents
The operation shadowless lamp of colour temperature and brightness is adjusted according to human eye state Download PDFInfo
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- CN106195656B CN106195656B CN201610552668.6A CN201610552668A CN106195656B CN 106195656 B CN106195656 B CN 106195656B CN 201610552668 A CN201610552668 A CN 201610552668A CN 106195656 B CN106195656 B CN 106195656B
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- colour temperature
- brightness
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- correction
- led light
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/20—Lighting for medical use
- F21W2131/205—Lighting for medical use for operating theatres
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a kind of operation shadowless lamps that colour temperature and brightness are adjusted according to human eye state, it include: LED light group, including main LED, the first correction LED and the second correction LED, main LED are White LED light source, first correction LED is orange LED light source, and the second correction LED is blue led light source；Brightness and colour temperature adjust module, brightness and colour temperature adjustment module are electrically connected with LED light group, brightness and colour temperature adjustment module include brightness regulating circuit and colour temperature adjusts circui, and colour temperature adjusts circui is used to adjust main LED, the first correction LED and the colour mixture ratio of the second correction LED reaches adjustment to the colour temperature of entire shadowless lamp；The brightness regulating circuit is used to adjust the brightness of LED light group；Image Acquisition analysis module, for obtaining doctor's face image and judging doctor's degree of fatigue, concurrent information adjusts module to brightness and colour temperature.The present invention can automatically adjust the colour temperature and brightness of shadowless lamp according to the degree of fatigue of doctor, to be suitble to the demand of doctor.
Description
Technical field
The present invention relates to a kind of operation shadowless lamps that colour temperature and brightness are adjusted according to human eye state, belong to shadowless lamp technology neck
Domain.
Background technique
For a long time, surgical operation is using halogen lamp as illumination light source.It is primarily present using halogen lamp following several
A problem: 1, halogen lamp can generate larger heat；In order to eliminate halogen lamp heat affecting caused by operating room, need in halogen lamp
Upper installation optical filter absorbs heat ray, increases the structure complexity and economic cost of shadowless lamp；2, the halogen lamp service life is shorter,
The universal service life was at 2000 hours or so；3, the colour temperature of halogen lamp is fixed, is not able to satisfy the requirement of all surgical operations；Outside
Different operative sites needs different colour temperatures in section's operation, is required with reaching colour developing；4, can not adaptive doctor tired shape
State carries out automatic colour temperature and brightness regulation.The operating time of complicated operation is very long, in the process due to the high intensity of doctor
The high concentration of labour and attention is inevitably generated fatigue, so that doctor's operative skill declines.If can be according to doctor's
The colour temperature and brightness of fatigue state appropriate adjustment shadowless lamp, it will obtain preferable effect.
Summary of the invention
The technical problems to be solved by the present invention are: overcoming the deficiencies of the prior art and provide a kind of according to human eye state tune
The operation shadowless lamp for saving colour temperature and brightness, according to the colour temperature and brightness of the fatigue state appropriate adjustment shadowless lamp of doctor, to obtain
Suitable operation luminous environment.
In order to solve the above-mentioned technical problem, the technical scheme is that, it is a kind of that colour temperature and bright is adjusted according to human eye state
The operation shadowless lamp of degree, comprising:
LED light group, including main LED, the first correction LED and the second correction LED, main LED are White LED light source, the first school
Positive LED is orange LED light source, and the second correction LED is blue led light source；
Brightness and colour temperature adjust module, and brightness and colour temperature adjustment module are electrically connected with LED light group, and brightness and colour temperature adjust mould
Block includes brightness regulating circuit and colour temperature adjusts circui, and colour temperature adjusts circui is for adjusting main LED, the first correction LED and second
The colour mixture ratio of correction LED reaches adjustment to the colour temperature of entire shadowless lamp；The brightness regulating circuit is for adjusting LED light group
Brightness；
Image Acquisition analysis module, for obtaining doctor's face image and judging doctor's degree of fatigue, concurrent information is to bright
Degree and colour temperature adjust module, so as to adjust automatically brightness and colour temperature.
A kind of specific structure of Image Acquisition analysis module is further provided for, described image collection analysis module includes:
CCD or CMOS camera face range and judge human eye degree of fatigue by algorithm for identification；
Pupil size judgment module, when pupil becomes smaller, brightness and colour temperature adjustment module control reduce the bright of LED light group
Degree, until pupil restores normal size, when pupil becomes larger, brightness and colour temperature adjustment module control the brightness for improving LED light group；
Eyes opening and closing degree judgment module is more than 65% to be considered an eyes closed when iris is capped area, thus
Judge the length and frequency of wink of wink time；
Frequency of wink judgement, when frequency of wink is lower, it is believed that fatigue occurs in people, and brightness and colour temperature adjustment module control mention
High color temperature is with the state of suitable human eye.
Further, the colour temperature of the main LED is set in the intermediate colour temperature between shadowless lamp lowest color temperature and highest colour temperature,
The colour temperature of first correction LED is in one end close to lowest color temperature, and the colour temperature of the second correction LED is in one end close to highest colour temperature.
The specific structure of brightness and colour temperature adjustment module is further provided for, the brightness and colour temperature adjustment module further include control
Device processed, the brightness regulating circuit and colour temperature adjusts circui are controlled by controller by pulse-width signal；The control
Device processed is by a constant-current source and LED light group brightness regulating circuit in series, in the LED light group, main LED, the first correction LED
Controllable switch is in series with branch road where the second correction LED；Controller generates the first pulse-width signal and adjusts constant-current source
The size of electric current, to control the brightness of LED light group；The controller where the first phase inverter and the first correction LED by propping up
The controllable switch on road is electrically connected, and controller is electrically connected by the second phase inverter with the controllable switch of branch where the second correction LED,
Controller is electrically connected with the controllable switch of branch where main LED；Controller generates the second pulse-width signal and adjusts the first correction
The turn-on time of LED and main LED ratio, so as to adjust the colour temperature at warm colour end, controller generates third pulse-width signal and adjusts the
The turn-on time ratio of two correction LED and main LED, so as to adjust the colour temperature at cool colour end.
Further, the controllable switch uses metal-oxide-semiconductor, and the controller uses single-chip microcontroller.
Further for convenient for manually adjusting, the operation shadowless lamp further includes manually adjusting and setting module, is adjusted manually
Whole and setting module is made of key and knob, and key and knob are electrically connected with brightness and colour temperature adjustment module, and knob is used for
Manual adjustment colour temperature and brightness, for key for selecting built-in colour temperature and brightness, the key includes four, respectively cranial surgery
Mode, thoracic surgery mode, abdominal cavity surgery mode and plastic surgery mode.
Further for raising local lighting degree, the operation shadowless lamp that colour temperature and brightness are adjusted according to human eye state
It further include the secondary light source of changeable illumination direction, secondary light source is mounted on shadowless lamp or operation edge of table.
Using above-mentioned technical proposal, the invention has the following advantages:
1, the present invention can automatically adjust the colour temperature and brightness of shadowless lamp according to the degree of fatigue of doctor, to be suitble to the need of doctor
It asks；
2, the present invention has substantially no effect on the thermal environment of operating room using the lesser LED light group of calorific value as light emitting source；
3, the present invention individually adjusts LED light group by brightness regulating circuit when adjusting the brightness and colour temperature of LED light group
Brightness individually adjusts colour temperature by colour temperature adjusts circui, and the two does not influence each other；
4, it is additionally provided with different brightness and color temperature mode in brightness of the invention and colour temperature adjustment module, can be suitble to not
With surgical light require and it is manually adjustable.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of brightness and colour temperature adjustment module of the invention；
Fig. 3 is the panel figure manually adjusted with setting module；
In figure, the 1, first correction LED, 2, main LED, the 3, second correction LED, 4, knob, 5, key.
Specific embodiment
In order that the present invention can be more clearly and readily understood, right below according to specific embodiment and in conjunction with attached drawing
The present invention is described in further detail.
As shown in Figure 1 and Figure 2, a kind of operation shadowless lamp adjusting colour temperature and brightness according to human eye state, comprising:
LED light group, including it is White LED light that main LED 2, first, which corrects the correction of LED 1 and second LED 3, main LED 2,
Source, the first correction LED 1 are orange LED light source, and the second correction LED 3 is blue led light source；
Brightness and colour temperature adjust module, and brightness and colour temperature adjustment module are electrically connected with LED light group, and brightness and colour temperature adjust mould
Block includes brightness regulating circuit and colour temperature adjusts circui, and colour temperature adjusts circui corrects 1 and of LED for adjusting main LED 2, first
The colour mixture ratio of second correction LED 3 reaches the colour temperature for adjusting entire operation shadowless lamp；The brightness regulating circuit is for adjusting
The brightness of LED light group；
Image Acquisition analysis module, for obtaining doctor's face image and judging doctor's degree of fatigue, concurrent information is to bright
Degree and colour temperature adjust module, so as to adjust automatically brightness and colour temperature.
Preferably, described image collection analysis module includes:
CCD or CMOS camera by image processing method face range for identification, and carry out eye within the scope of face
Eyeball positioning, and human eye degree of fatigue is judged by algorithm；
Pupil size judgment module, when pupil becomes smaller, brightness and colour temperature adjustment module control reduce the bright of LED light group
Degree, until pupil restores normal size, when pupil becomes larger, brightness and colour temperature adjustment module control the brightness for improving LED light group；
Eyes opening and closing degree judgment module is more than 65% to be considered an eyes closed when iris is capped area, thus
Judge the length and frequency of wink of wink time；
Frequency of wink judgement, when frequency of wink is lower, it is believed that fatigue occurs in people, and brightness and colour temperature adjustment module control mention
High color temperature is with the state of suitable human eye.
Further, the colour temperature of the main LED 2 is set in the intermediate colour temperature between shadowless lamp lowest color temperature and highest colour temperature
On, such as: lowest color temperature 2500K, highest colour temperature is 8500K, then the colour temperature of main LED is 5000K；First correction LED 1
Colour temperature close to lowest color temperature one end, second correction LED 3 colour temperature close to highest colour temperature one end；It is led with adjustment is crossed
The colour mixture ratio that LED 2, first corrects the correction of LED 1 and second LED 3 reaches the mesh for adjusting the colour temperature of entire operation shadowless lamp
's.
Main LED 2 emits white light, and preferably 450nm or so can adjust the LED of peak luminous wavelength and be motivated using the LED preferred
Wavelength is composed in the fluorophor of 550nm or so adjustment wavelength of the fluorescence peak；
First correction LED 1 sends out orange light, and preferably 600nm or so can adjust the orange LED of peak luminous wavelength；
Second correction 3 blue light-emitting of LED, preferably 450nm or so can adjust the LED of peak luminous wavelength；Adjust above-mentioned three kinds
The colour mixture ratio of LED can adjust the colour temperature of LED light group in 2500K to 8500K range.
Preferably, as shown in Fig. 2, the brightness and colour temperature adjustment module further include controller, controller uses single-chip microcontroller,
The PWM1 wave for adjusting brightness, PWM2 the and PWM3 wave for adjusting colour temperature are issued under the support of software；The brightness regulating circuit
It is controlled by controller by pulse-width signal with colour temperature adjusts circui；The controller passes through a constant-current source and LED light
Group brightness regulating circuit in series, in the LED light group, branch road where main LED, the first correction LED and the second correction LED
It is in series with controllable switch；Controller generates the size that the first pulse-width signal PWM1 adjusts constant current source current, to control LED
The brightness of lamp group；The controller is electrically connected by the first phase inverter with the controllable switch of the first correction 1 place branch of LED,
Controller is electrically connected by the second phase inverter with the controllable switch of the second correction 3 place branch of LED, controller and main 2 institute of LED
It is electrically connected in the controllable switch of branch；Controller generates the second pulse-width signal PWM2 and adjusts the first correction LED 1 and main LED
2 turn-on time ratio, so as to adjust the colour temperature at warm colour end, controller generates third pulse-width signal PWM3 and adjusts the second correction
The turn-on time of LED 3 and main LED 2 ratio, so as to adjust the colour temperature at cool colour end.It will not influence constant current source current when adjusting colour temperature
Therefore overall brightness is kept constant.
PMW2 and PWM3 is not generated simultaneously, PWM2 wave is generated when colour temperature is adjusted toward low side, when colour temperature is toward when high-end adjustment
PWM3 wave is generated, adjusts colour temperature by adjusting the duty ratio of PWM2 and PWM3 wave.
Constant-current source using driving LED light group enough constant current source chip, such as: Fujitsu semiconductor MB39C602, can be with
Multi-disc is used in parallel.
Preferably, the controllable switch uses metal-oxide-semiconductor, the metal-oxide-semiconductor of preferably enough high currents, and the controller uses monolithic
Machine.
Optionally, it as shown in figure 3, the operation shadowless lamp further includes manually adjusting and setting module, manually adjusts and sets
Cover half block is made of key 5 and knob 4, and key 5 and knob 4 are electrically connected with brightness and colour temperature adjustment module, and knob 4 is used for people
Work adjusts colour temperature and brightness, and for key 5 for selecting built-in colour temperature and brightness, the key 5 includes four, respectively cranial surgery
Mode, thoracic surgery mode, abdominal cavity surgery mode and plastic surgery mode.
Optionally, as shown in Figure 1, the operation shadowless lamp according to human eye state adjusting colour temperature and brightness further includes can
Change the secondary light source of illumination direction, secondary light source is mounted on shadowless lamp or operation edge of table.
The present invention can automatically adjust the colour temperature and brightness of shadowless lamp according to the degree of fatigue of doctor, to be suitble to the need of doctor
It asks；The present invention, as light emitting source, has substantially no effect on the thermal environment of operating room using the lesser LED light group of calorific value；The present invention exists
When adjusting the brightness and colour temperature of LED light group, the brightness of LED light group is individually adjusted by brightness regulating circuit, passes through color temperature adjustment
Circuit individually adjusts colour temperature, and the two does not influence each other；It is additionally provided in brightness of the invention and colour temperature adjustment module different bright
Degree and color temperature mode can be suitble to different surgical light requirement and manually adjustable.
Particular embodiments described above, pair present invention solves the technical problem that, technical scheme and beneficial effects carry out
It is further described, it should be understood that the above is only a specific embodiment of the present invention, is not limited to this
Invention, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in this hair
Within bright protection scope.
Claims (6)
1. a kind of operation shadowless lamp for adjusting colour temperature and brightness according to human eye state characterized by comprising
LED light group, including main LED (2), the first correction LED (1) and the second correction LED (3), main LED (2) they are White LED light
Source, the first correction LED (1) are orange LED light source, and the second correction LED (3) is blue led light source；
Brightness and colour temperature adjust module, and brightness and colour temperature adjustment module are electrically connected with LED light group, and brightness and colour temperature adjust module packet
Include brightness regulating circuit and colour temperature adjusts circui, colour temperature adjusts circui is for adjusting main LED (2), the first correction LED (1) and the
The colour mixture ratio of two corrections LED (3) reaches the colour temperature for adjusting entire operation shadowless lamp；The brightness regulating circuit is for adjusting
The brightness of LED light group；
Image Acquisition analysis module, for obtaining doctor's face image and judging doctor's degree of fatigue, concurrent information to brightness and
Colour temperature adjusts module, so as to adjust automatically brightness and colour temperature；Described image collection analysis module includes:
CCD or CMOS camera face range and judge human eye degree of fatigue by algorithm for identification；
Pupil size judgment module, when pupil becomes smaller, the brightness of brightness and colour temperature adjustment module control reduction LED light group, directly
Restore normal size to pupil, when pupil becomes larger, the brightness of brightness and colour temperature adjustment module control raising LED light group；
Eyes opening and closing degree judgment module is more than 65% to be considered an eyes closed when iris is capped area, thus sentences
The length and frequency of wink of disconnected wink time；
Frequency of wink judgement, when frequency of wink is lower, it is believed that fatigue occurs in people, and brightness and colour temperature adjustment module control improve color
Temperature is with the state of suitable human eye.
2. the operation shadowless lamp according to claim 1 for adjusting colour temperature and brightness according to human eye state, it is characterised in that: institute
It states in the intermediate colour temperature that the colour temperature of main LED (2) is set between shadowless lamp lowest color temperature and highest colour temperature, the first correction LED (1)
Colour temperature close to lowest color temperature one end, second correction LED (3) colour temperature close to highest colour temperature one end.
3. the operation shadowless lamp according to claim 2 for adjusting colour temperature and brightness according to human eye state, it is characterised in that: institute
Stating brightness and colour temperature adjustment module further includes controller, and the brightness regulating circuit and colour temperature adjusts circui are logical by controller
Cross pulse-width signal control；The controller is described by a constant-current source and LED light group brightness regulating circuit in series
In LED light group, main LED, the first correction LED and the second place correction LED branch road are in series with controllable switch；Controller generates
First pulse-width signal adjusts the size of constant current source current, to control the brightness of LED light group；The controller passes through first
Phase inverter is electrically connected with the controllable switch of branch where the first correction LED (1), and controller passes through the second phase inverter and the second correction
The controllable switch electrical connection of branch where LED (3), controller are electrically connected with the controllable switch of branch where main LED (2)；Control
Device generates the turn-on time ratio that the second pulse-width signal adjusts the first correction LED (1) and main LED (2), so as to adjust warm colour end
Colour temperature, controller generate third pulse-width signal adjust second correction LED (3) and main LED (2) turn-on time ratio, from
And adjust the colour temperature at cool colour end.
4. the operation shadowless lamp according to claim 3 for adjusting colour temperature and brightness according to human eye state, it is characterised in that: institute
Controllable switch is stated using metal-oxide-semiconductor, the controller uses single-chip microcontroller.
5. the operation shadowless lamp according to claim 4 for adjusting colour temperature and brightness according to human eye state, it is characterised in that: institute
Stating operation shadowless lamp further includes manually adjusting and setting module, is manually adjusted with setting module by key (5) and knob (4) group
Be electrically connected with brightness and colour temperature adjustment module at, key (5) and knob (4), knob (4) is used for manual adjustment colour temperature and bright
Degree, for key (5) for selecting built-in colour temperature and brightness, the key (5) includes four, respectively cranial surgery mode, outside chest
Section's mode, abdominal cavity surgery mode and plastic surgery mode.
6. the operation shadowless lamp according to claim 1 for adjusting colour temperature and brightness according to human eye state, it is characterised in that: institute
The operation shadowless lamp according to human eye state adjusting colour temperature and brightness stated further includes the secondary light source of changeable illumination direction, auxiliary
Light source is mounted on shadowless lamp or operation edge of table.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610552668.6A CN106195656B (en) | 2016-07-13 | 2016-07-13 | The operation shadowless lamp of colour temperature and brightness is adjusted according to human eye state |
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| CN201610552668.6A CN106195656B (en) | 2016-07-13 | 2016-07-13 | The operation shadowless lamp of colour temperature and brightness is adjusted according to human eye state |
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| CN106195656B true CN106195656B (en) | 2019-01-04 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369482A (en) * | 2016-08-31 | 2017-02-01 | 昆山邦泰汽车零部件制造有限公司 | Operation shadowless lamp and use method thereof |
| CN106880316B (en) * | 2017-01-19 | 2021-02-26 | 广东美的环境电器制造有限公司 | Toilet bowl and human body cleaning control method thereof |
| WO2018145271A1 (en) * | 2017-02-08 | 2018-08-16 | 格兰比圣（深圳）科技有限公司 | Smart illumination lamp |
| CN108591868B (en) * | 2018-03-27 | 2020-06-26 | 中国地质大学（武汉） | Automatic dimming desk lamp based on eye fatigue degree |
| CN109068434A (en) * | 2018-04-11 | 2018-12-21 | 长春中国光学科学技术馆 | A kind of displaying device adjusting colour temperature and brightness |
| CN109949193B (en) * | 2019-04-02 | 2020-12-25 | 中国计量大学上虞高等研究院有限公司 | Learning attention detection and prejudgment device under variable light environment |
| CN111950462B (en) * | 2020-08-13 | 2022-03-25 | 深圳市商汤科技有限公司 | Brightness adjusting method and device, electronic equipment and storage medium |
| CN117015121B (en) * | 2023-10-07 | 2023-12-15 | 南通医疗器械有限公司 | Fault alarm management method and system for shadowless lamp |
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