CN113068290A - Contrast intelligent regulation LED eyeshield desk lamp - Google Patents
Contrast intelligent regulation LED eyeshield desk lamp Download PDFInfo
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- CN113068290A CN113068290A CN202110285660.9A CN202110285660A CN113068290A CN 113068290 A CN113068290 A CN 113068290A CN 202110285660 A CN202110285660 A CN 202110285660A CN 113068290 A CN113068290 A CN 113068290A
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- 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]
- H05B45/30—Driver circuits
- H05B45/32—Pulse-control circuits
- H05B45/325—Pulse-width modulation [PWM]
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- 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
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- 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]
- H05B45/20—Controlling the colour of the light
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- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention provides an LED eye-protection desk lamp with intelligently-adjusted contrast, which comprises an LED lamp panel, a power supply module, a control module, an adjustable PWM duty ratio circuit, a camera and an image processing chip, wherein the power supply module is connected with the control module, the camera collects images irradiated by a multi-texture light emitting lamp group, then the collected images are sequentially processed by the image processing chip and the control module, the control module judges the contrast of the images according to the transmitted images, when the contrast of the images does not meet the requirement, the duty ratio of the multi-color light emitting lamp group is adjusted by adjusting the PWM adjustable duty ratio circuit to adjust the color temperature of the light, and when the contrast of the images meets the requirement, the LED lamp panel is controlled according to the duty ratio of the current multi-color light emitting lamp group. The invention relates to a portable LED eye-protection desk lamp which adjusts the light emitting power ratio of a plurality of light emitters of the LED desk lamp according to written contrast, and meanwhile, the contrast intelligent adjustment LED eye-protection desk lamp which intelligently supplements light by adopting a multi-light source control module.
Description
Technical Field
The invention relates to an LED eye-protection desk lamp, in particular to a portable LED eye-protection desk lamp adopting a plurality of light emitters.
Background
In the field of desk lamp illumination, a light source generally adopts the layout of a plurality of point-shaped arrayed LED, and then a light guide plate guides light to form a surface light-emitting plate, and the point-shaped surface light-emitting plate illuminates. However, such a desk lamp is not a simple lighting tool, and cannot have a multi-light-source intelligent dimming function, and when a book is illuminated, the original illumination brightness is continuously used under the condition that the font contrast of the book is reduced and the vision is hard, so that the eye fatigue of a user can be accelerated. The intelligent use of unable warning or automatic dimming makes the contrast of illumination books reach comfortable degree. Different colour temperature light can reach different definitions to the contrast of light and shade also can use visual effect better. In the prior art, the desk lamp LED can only adjust the light in a single direction to achieve the illumination brightness, but cannot adjust the contrast ratio with more humanization so as to solve the technical defect of eye fatigue of a user, which becomes a technical problem to be solved urgently by technical personnel in the field.
Disclosure of Invention
The technical purpose of the invention is to overcome the technical defect that the LED table lamp in the prior art cannot adjust the light ratio by identifying the contrast ratio of an illuminated object, provide a portable LED eye-protecting table lamp for adjusting the light-emitting power ratio of a plurality of light-emitting devices of the LED table lamp according to the written contrast ratio, and simultaneously adopt a multi-light source control module to carry out contrast ratio intelligent adjustment LED eye-protecting table lamp for intelligent light supplement. Another technical object of the present invention is to provide an LED desk lamp that can improve the contrast of a reading target in an illumination range by emitting an illumination effect with patterns and textures through a light emitter, thereby solving visual fatigue.
In order to achieve the technical purpose, the technical scheme of the invention is as follows:
a contrast intelligent regulation LED eye protection desk lamp comprises an LED lamp panel, a power supply module, a control module, an adjustable PWM duty ratio circuit, a camera and an image processing chip, wherein the power supply module is connected with the control module, the control module is connected with the adjustable PWM duty ratio circuit, the adjustable PWM duty ratio circuit is connected with the LED lamp panel, the LED lamp panel comprises a multi-color light emitting lamp set and a multi-texture light emitting lamp set, the camera is connected with the image processing chip, the camera collects images irradiated by the multi-texture light emitting lamp set, then the collected images are sequentially processed by the image processing chip and the control module, the control module judges the contrast of the images according to the transmitted images, and when the contrast of the images does not meet the requirement, the color temperature of light is regulated by regulating the duty ratio of the multi-color light emitting lamp set through regulating the adjustable PWM duty ratio circuit, and when the image contrast meets the requirement, the LED lamp panel is controlled according to the duty ratio of the current multi-color light emitting lamp group.
Preferably, the control system further comprises a motor driving circuit and a motor, wherein the control end of the motor driving circuit is connected with the control module, and the motor driving circuit is connected with the motor.
Preferably, the motor is fixed on the desk lamp support, the output shaft of the motor is connected with the LED lamp panel, and the control module controls the adjusting motor to rotate through the motor driving circuit so as to adjust the illumination angle of the LED lamp panel and the contrast of an illumination target.
Preferably, the multi-color light-emitting lamp group at least comprises a red light-emitting lamp, a green light-emitting lamp and a yellow light-emitting lamp.
Preferably, the multi-texture light-emitting lamp group at least comprises a light and shade cross-texture light-emitting lamp, a light and shade aperture light-emitting lamp and a pattern light-emitting lamp, the camera collects images emitted by the pattern light-emitting lamp and transmits the images to the image processing chip, the control module judges the contrast of the images by judging the images transmitted by the image processing chip, and when the contrast of the images does not meet the requirement, the contrast of the illumination target is adjusted by adjusting the light-emitting textures of the light and shade cross-texture light-emitting lamp and/or the light and shade aperture light-emitting lamp.
Preferably, the LED lamp panel further comprises a touch screen and a manual knob, the touch screen and the manual knob are respectively connected with the control module, the PWM duty cycle circuit is controlled by the control module, the control module changes the brightness of the LED lamp panel by changing the duty cycle of the PWM output end, and the color temperature is changed by mixing various colors with different brightness.
Preferably, the touch screen and the manual knob are adopted to replace a camera and an image processing chip, and the intelligent control system further comprises an illumination sensor, wherein the illumination sensor is connected with the control module.
Preferably, the PWM duty cycle circuit includes a PWM control circuit, a multi-color light emitting lamp duty cycle adjustable circuit, a multi-texture light emitting lamp duty cycle adjustable circuit, and an individual power supply circuit, and the PWM control circuit is connected to the multi-color light emitting lamp duty cycle adjustable circuit, the multi-texture light emitting lamp duty cycle adjustable circuit, and the individual power supply circuit, respectively.
Preferably, the multi-color luminescent lamp duty ratio adjustable circuit and the multi-texture luminescent lamp duty ratio adjustable circuit are connected with the control module through an adjusting circuit and a triode switch circuit; the triode switch circuit comprises a first triode to a fifth triode, a first resistor to a second resistor, wherein an emitting electrode of the first triode is connected with a base electrode of the second triode, a base electrode of the first triode is connected with an emitting electrode of the second triode, one end of the first resistor and a collecting electrode of the fourth triode, a collecting electrode of the first resistor is connected with the other end of the first resistor and a collecting electrode of the third triode, the collecting electrode of the second triode is connected with one end of the second resistor and one end of an emitting electrode of the fourth triode, a base electrode of the fourth triode is connected with a collecting electrode of the fifth triode, and an emitting electrode of the fifth triode is connected with the other end of the second resistor.
Preferably, the adjusting circuit comprises a first interface, a second interface, a sixth triode to an eighth triode, a voltage regulator tube, a third resistor, a fourth resistor and a first sliding resistor, the input end of the first interface is connected with the control module, the output end of the first interface is connected with the emitter of the sixth triode and the base of the seventh triode, the collector of the sixth triode is connected with one end of the third resistor and the base of the eighth triode, the collector of the seventh triode is connected with the emitter of the eighth triode and one end of a voltage stabilizing tube, the emitter of the seventh triode is connected with the other end of the voltage-stabilizing tube through a capacitor, the collector of the eighth triode is connected with one end of the second resistor, the other end of the second resistor is connected with the first sliding resistor, and the other end of the first sliding resistor and the other end of the first resistor are connected with the second interface.
Compared with the prior art, the invention has the beneficial effects that:
1. the contrast intelligent adjustment LED eye-protection desk lamp can simultaneously adopt the control module to carry out intelligent light supplement on multiple light sources, and can also improve the contrast of a read target in an illumination range by the illumination effect with patterns and textures emitted by the pattern luminescent lamp so as to solve visual fatigue.
2. The invention can also carry out interlocking control on the multi-color light-emitting lamp group and the multi-texture light-emitting lamp group through the PWM regulating circuit and the triode switching circuit, thereby avoiding the influence on the whole effect caused by the illumination of the multi-color light-emitting lamp group and the multi-texture light-emitting lamp group.
3. The invention adopts the design of the pattern luminescent lamp, utilizes the camera to collect the image sent by the pattern luminescent lamp, and then compares the image with the image in the database to obtain the contrast of the image, thereby utilizing the adjustable PWM duty ratio circuit to adjust the luminous texture of the bright and dark transverse stripe luminescent lamp and/or the bright and dark diaphragm luminescent lamp.
4. The invention can also detect the intensity of light through the illumination sensor, then display on the touch screen, and the user can adjust the light through the touch screen or a manual knob, thereby adjusting the contrast of the illumination target.
5. The invention controls the brightness of the multi-color luminescent lamps in the multi-color luminescent lamp group by the multi-color luminescent lamp duty ratio adjustable circuit, controls the brightness of the bright and dark cross-grain luminescent lamps and the bright and dark diaphragm luminescent lamps in the multi-grain luminescent lamp group by the multi-grain luminescent lamp duty ratio adjustable circuit, and directly and independently supplies power to the pattern luminescent lamps by the independent power supply circuit.
6. According to the invention, the image transmitted by the camera is used for intercepting the areas of the read target and the blank in the image, and the contrast is judged according to the pixel transition fluctuation of the set area size, if the pixel transition fluctuation is smooth, the contrast is insufficient, otherwise, the contrast is reasonable. The high contrast is achieved by adjusting the light-emitting bright and dark textures, the color temperature ratio and the light irradiation direction or the combination of the three.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a block diagram of a contrast intelligent adjusting LED eye-protecting desk lamp of embodiment 1;
fig. 2 is a block diagram of the structure of the contrast intelligent adjusting LED eye-protecting desk lamp of embodiment 4;
fig. 3 is a block diagram of the structure of the contrast intelligent adjusting LED eye-protecting desk lamp of embodiment 5;
fig. 4 is a block diagram of a PWM control circuit according to embodiment 6;
FIG. 5 is a schematic circuit diagram of a circuit for adjusting the duty ratio of a multi-color light-emitting lamp according to embodiment 6;
fig. 6 is a circuit schematic of a triode switch circuit of embodiment 6;
fig. 7 is a schematic circuit diagram of an image processing chip of embodiment 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a contrast intelligent regulation LED eyeshield desk lamp, includes LED lamp plate, power module, control module, adjustable PWM duty cycle circuit, camera, image processing chip, and power module is connected with control module, and control module and adjustable PWM duty cycle circuit connection, adjustable PWM duty cycle circuit are connected with the LED lamp plate, and the LED lamp plate includes the luminous banks of many colours, the luminous banks of many textures, and the camera is connected with the image processing chip.
The working principle is as follows: the camera gathers the image that the multi-texture light emitting lamp group shines, then the image that will gather passes through image processing chip in proper order, control module handles, control module judges the contrast of image according to the image that transmits, when image contrast does not reach the requirement, through the duty cycle of the adjustable PWM duty cycle circuit adjustment multi-color light emitting lamp group, adjust light colour temperature, when image contrast reaches the requirement, according to the duty cycle control LED lamp plate of current multi-color light emitting lamp group.
The invention utilizes the illumination effect of the multi-texture light emitting lamp set to emit patterns and textures to improve the contrast of a reading target in an illumination range, and then automatically adjusts the LED lamp panel to solve visual fatigue, so that the user experience effect is very good.
Example 2
This embodiment is different from embodiment 1 in that: the control end of the motor driving circuit is connected with the control module, and the motor driving circuit is connected with the motor.
The motor is fixed on the desk lamp support, and the output shaft of motor connects the LED lamp plate, and when using, control module passes through motor drive circuit control adjustment motor and rotates, adjusts the illumination angle of LED lamp plate and the contrast of illumination target.
The camera is connected with a motor, and the camera motor is fixed in the support one side that the desk lamp extends the user, and control module judges the contrast to picture vision angle through the shooting angle and the software of adjustment camera motor.
Example 3
This embodiment is different from embodiment 1 in that: the multi-color light-emitting lamp group at least comprises a red light-emitting lamp, a green light-emitting lamp and a yellow light-emitting lamp. The control module can adjust the light emitting conditions of the red light emitting lamp, the green light emitting lamp and the yellow light emitting lamp through the adjustable PWM duty ratio circuit.
The multi-texture light-emitting lamp group at least comprises a light and shade cross-texture light-emitting lamp, a light and shade aperture light-emitting lamp and a pattern light-emitting lamp.
The camera gathers the image that the pattern luminescent light sent to transmit the image for image processing chip, control module judges the contrast of image through judging the image that image processing chip transmitted, when image contrast did not reach the requirement, through the luminous texture of adjusting light and shade band luminescent light and/or light and shade diaphragm luminescent light, adjusts the contrast of illumination target.
Example 4
This embodiment is different from embodiment 1 in that: as shown in fig. 4, the LED lamp panel also comprises a touch screen and a manual knob, the touch screen and the manual knob are respectively connected with the control module, the PWM duty cycle circuit is also controlled by the control module, the control module changes the brightness of the LED lamp panel by changing the duty cycle of the PWM output end, and the color temperature is changed by mixing various colors with different brightness.
When automatic dimming is not needed, dimming can be manually controlled through a touch screen and a manual knob, for example, the dimming is biased to red or other colors, and the contrast of the current illumination target can be displayed through the touch screen for the observation of an operator.
Example 5
This embodiment is different from embodiment 1 in that: when the camera and the image processing chip are not needed, the camera and the image processing chip can be replaced by the touch screen and the manual knob, and the touch screen and the manual knob also comprise an illumination sensor which is connected with the control module.
The light intensity is detected by the light sensor and then displayed on the touch screen, and the user can adjust the light by the touch screen or a manual knob, so as to adjust the contrast of the illumination target.
Example 6
This embodiment is different from embodiment 3 in that: as shown in fig. 4-6, the adjustable PWM duty cycle circuit includes a multi-color light emitting lamp duty cycle adjustable circuit, a multi-texture light emitting lamp duty cycle adjustable circuit, and an individual power supply circuit, and the PWM control circuit is connected to the multi-color light emitting lamp duty cycle adjustable circuit, the multi-texture light emitting lamp duty cycle adjustable circuit, and the individual power supply circuit, respectively.
The multi-color light-emitting lamp duty ratio adjustable circuit is connected with the multi-color light-emitting lamp set, and the multi-texture light-emitting lamp duty ratio adjustable circuit is connected with the multi-texture light-emitting lamp set.
The multi-color luminescent lamp duty ratio adjustable circuit and the multi-texture luminescent lamp duty ratio adjustable circuit are connected with the control module through the adjusting circuit, the triode switch circuit is connected with the control module, the control module can directly control whether the multi-color luminescent lamp duty ratio adjustable circuit and the control circuit of the multi-texture luminescent lamp duty ratio adjustable circuit are conducted or not through the triode switch circuit, therefore, the multi-color luminescent lamp group and the multi-texture luminescent lamp group are subjected to interlocking control, the phenomenon that the multi-color luminescent lamp group is used and the illumination of the multi-texture luminescent lamp group is influenced is avoided, and the whole effect is influenced.
The triode switch circuit comprises a first triode to a fifth triode and a first resistor to a second resistor, wherein an emitter of the first triode Q75 is connected with a base electrode of the second triode Q74, a base electrode of the first triode Q75 is connected with an emitter of the second triode Q74, one end of the first resistor R76 and a collector of the fourth triode Q80, a collector of the fourth triode Q80 is connected with the other end of the first resistor R76 and a collector of the third triode Q77 and is grounded, a collector of the second triode Q74 is connected with one end of the second resistor R79 and one end of an emitter of the fourth triode Q80, a base electrode of the fourth triode Q80 is connected with a collector of the fifth triode Q78, and an emitter of the fifth triode Q78 is connected with the other end of the second resistor R79. The triode switch circuit is adopted to carry out interlocking control on the multi-color light-emitting lamp set and the multi-texture light-emitting lamp set, so that the influence on the illumination of the multi-color light-emitting lamp set and the multi-texture light-emitting lamp set and the influence on the whole effect are avoided.
The adjusting circuit comprises a first interface U1, a second interface U2, a sixth triode to an eighth triode, a voltage regulator tube D1, a third resistor R7, a fourth resistor R8 and a first sliding resistor R9, the input end of the first interface U1 is connected with the control module, the output end of the first interface U1 is connected with the emitter of the sixth triode Q2 and the base of the seventh triode Q1, the collector of the sixth triode Q2 is connected with one end of the third resistor R7 and the base of the eighth triode Q3, the collector of the seventh triode Q1 is connected with the emitter of the eighth triode Q3 and one end of the voltage regulator tube, the emitter of the seventh triode Q1 is connected with the other end of the voltage regulator tube D1 through a capacitor, the collector of the eighth triode Q3 is connected with one end of the second resistor R8, the other end of the second resistor R8 is connected with the first sliding resistor R9, and the other end of the first sliding resistor R9 and the other end of the first resistor R7 are connected with the second interface U2. By adopting the adjusting circuit, mutual adjustment control can be carried out on the multi-color light-emitting lamp set and the multi-texture light-emitting lamp set, and the adjusting circuit is supplemented with the triode switch circuit, so that the control on the multi-color light-emitting lamp set and the multi-texture light-emitting lamp set is diversified.
When the adjustable PWM duty ratio circuit is used for controlling a multi-color light-emitting lamp set and a multi-texture light-emitting lamp set, the adjustable PWM duty ratio circuit firstly sends a control signal to the multi-color light-emitting lamp duty ratio adjustable circuit or the multi-texture light-emitting lamp duty ratio adjustable circuit, then the multi-color light-emitting lamp duty ratio adjustable circuit controls the brightness of the multi-color light-emitting lamps in the multi-color light-emitting lamp set, or the multi-texture light-emitting lamp duty ratio adjustable circuit controls the brightness of a bright-dark cross-stripe light-emitting lamp and a bright-dark aperture light-emitting lamp in the multi-texture light-emitting lamp set, and an independent power supply circuit directly and independently supplies power to a pattern light-emitting lamp.
Example 7
This embodiment is different from embodiment 1 in that: the image processing chip adopts the chip of AL422B model, the control module adopts the chip of STC15W408S model, and the output of control module is connected with the one end of resistance 201, the one end of the other termination sliding resistance Rp203 of resistance 201, the other termination image processing chip of sliding resistance Rp203, the other end of resistance 201 still is connected with grounded resistance C107, such design, the benefit can be according to the feedback value that the illumination angle of LED lamp plate can be adjusted control module at will, be favorable to improving the precision and the degree of accuracy of collection, obtain the contrast of accurate illumination target.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a contrast intelligent regulation LED eyeshield desk lamp, includes LED lamp plate, power module, its characterized in that: also comprises a control module, an adjustable PWM duty ratio circuit, a camera and an image processing chip, wherein the power module is connected with the control module, the control module is connected with an adjustable PWM duty ratio circuit, the adjustable PWM duty ratio circuit is connected with the LED lamp panel, the LED lamp panel comprises a multi-color light-emitting lamp group and a multi-texture light-emitting lamp group, the camera is connected with the image processing chip and acquires images irradiated by the multi-texture light-emitting lamp group, then the collected image is processed by an image processing chip and a control module in sequence, the control module judges the contrast of the image according to the transmitted image, when the image contrast ratio does not meet the requirement, the color temperature of the lamplight is adjusted by adjusting the duty ratio of the multi-color light-emitting lamp group by adjusting the adjustable PWM duty ratio circuit, and when the image contrast meets the requirement, the LED lamp panel is controlled according to the duty ratio of the current multi-color light emitting lamp group.
2. The contrast intelligent-adjustment LED eye-protection desk lamp of claim 1, wherein: the control end of the motor driving circuit is connected with the control module, and the motor driving circuit is connected with the motor.
3. The contrast intelligent-adjustment LED eye-protection desk lamp of claim 2, wherein: the motor is fixed on the desk lamp support, the output shaft of the motor is connected with the LED lamp panel, and the control module controls the adjusting motor to rotate through the motor driving circuit to adjust the illumination angle of the LED lamp panel and the contrast of an illumination target.
4. The contrast intelligent-adjustment LED eye-protection desk lamp of claim 1, wherein: the multi-color light-emitting lamp group at least comprises a red light-emitting lamp, a green light-emitting lamp and a yellow light-emitting lamp.
5. The contrast intelligent-adjustment LED eye-protection desk lamp of claim 1, wherein: the multi-texture light-emitting lamp group at least comprises a light and shade transverse-stripe light-emitting lamp, a light and shade aperture light-emitting lamp and a pattern light-emitting lamp, the camera collects images sent by the pattern light-emitting lamp and transmits the images to the image processing chip, the control module judges the contrast of the images by judging the images transmitted by the image processing chip, and when the contrast of the images does not meet the requirement, the contrast of an illumination target is adjusted by adjusting the light and shade transverse-stripe light-emitting lamp and/or the light and shade aperture light-emitting lamp.
6. The contrast intelligent-adjustment LED eye-protection desk lamp of claim 1, wherein: the LED lamp panel brightness control circuit is characterized by further comprising a touch screen and a manual knob, wherein the touch screen and the manual knob are respectively connected with the control module, the PWM duty cycle circuit is further controlled by the control module, the control module changes the brightness of the LED lamp panel by changing the duty cycle of the PWM output end, and the color temperature is changed by mixing colors with different brightness.
7. The contrast intelligent regulation LED eyeshield desk lamp of claim 6, characterized in that: the touch screen and the manual knob are adopted to replace a camera and an image processing chip, and the touch screen and the manual knob further comprise an illumination sensor, and the illumination sensor is connected with the control module.
8. The contrast intelligent-adjustment LED eye-protection desk lamp of claim 1, wherein: the PWM duty cycle circuit comprises a PWM regulation circuit, a multi-color luminescent lamp duty cycle adjustable circuit, a multi-texture luminescent lamp duty cycle adjustable circuit and an independent power supply circuit, and the PWM regulation circuit is respectively connected with the multi-color luminescent lamp duty cycle adjustable circuit, the multi-texture luminescent lamp duty cycle adjustable circuit and the independent power supply circuit.
9. The contrast intelligent regulation LED eyeshield desk lamp of claim 8, characterized in that: the multi-color luminescent lamp duty ratio adjustable circuit and the multi-texture luminescent lamp duty ratio adjustable circuit are connected with the control module through the adjusting circuit and the triode switch circuit; the triode switch circuit comprises a first triode to a fifth triode, a first resistor to a second resistor, wherein an emitting electrode of the first triode is connected with a base electrode of the second triode, a base electrode of the first triode is connected with an emitting electrode of the second triode, one end of the first resistor and a collecting electrode of the fourth triode, a collecting electrode of the first resistor is connected with the other end of the first resistor and a collecting electrode of the third triode, the collecting electrode of the second triode is connected with one end of the second resistor and one end of an emitting electrode of the fourth triode, a base electrode of the fourth triode is connected with a collecting electrode of the fifth triode, and an emitting electrode of the fifth triode is connected with the other end of the second resistor.
10. The contrast intelligent regulation LED eyeshield desk lamp of claim 8, characterized in that: the regulating circuit comprises a first interface, a second interface, a sixth triode, an eighth triode, a voltage regulator tube, a third resistor, a fourth resistor and a first sliding resistor, the input end of the first interface is connected with the control module, the output end of the first interface is connected with the emitter of the sixth triode and the base of the seventh triode, the collector of the sixth triode is connected with one end of the third resistor and the base of the eighth triode, the collector of the seventh triode is connected with the emitter of the eighth triode and one end of a voltage stabilizing tube, the emitter of the seventh triode is connected with the other end of the voltage-stabilizing tube through a capacitor, the collector of the eighth triode is connected with one end of the second resistor, the other end of the second resistor is connected with the first sliding resistor, and the other end of the first sliding resistor and the other end of the first resistor are connected with the second interface.
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