CN116504199B - Eye protection method, device, equipment and medium based on blue light entering eyes - Google Patents
Eye protection method, device, equipment and medium based on blue light entering eyes Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 44
- 210000001747 pupil Anatomy 0.000 claims abstract description 81
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- 238000005286 illumination Methods 0.000 claims description 63
- 238000001514 detection method Methods 0.000 claims description 50
- 238000006243 chemical reaction Methods 0.000 claims description 11
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- 208000001491 myopia Diseases 0.000 claims description 6
- 230000004379 myopia Effects 0.000 claims description 6
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- 239000003053 toxin Substances 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
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- G06V40/18—Eye characteristics, e.g. of the iris
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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
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Abstract
The application provides an eye protection method, device, equipment and medium based on blue light entering eyes, wherein the method comprises the following steps: the method comprises the steps of obtaining a target distance between a target screen and eyes of a user, determining a target illuminance value generated under the target distance from a preset distance and illuminance correspondence based on the target distance, converting the target illuminance value to obtain blue light radiation exposure, determining the pupil size of the eyes of the user, determining the entrance pupil radiation exposure based on the pupil size and the blue light radiation exposure, and adjusting the surface illuminance of the target screen according to the entrance pupil radiation exposure. The application can adjust the exposure of blue light radiation received by a user under a target environment, thereby protecting human eyes.
Description
Technical Field
The application relates to the field of display, in particular to an eye protection method, device, equipment and medium based on blue light entering eyes.
Background
Short-wave blue light is light with a relatively high energy between 400nm and 480 nm. Blue light in the wavelength can increase the toxin amount of the macular region in eyes and seriously threaten the health of eyeground.
In the display field, the test standard for low blue light is based on the relative content of blue irradiance (such as TUV standard) in the surface display spectrum of the display device, or the relative content of blue hazard weighted irradiance, and after the test, an eye protection strategy is formulated according to the test result. However, this method cannot be directed to the exposure of blue light radiation actually entering the human eye, because the relative amount does not represent the absolute amount, nor does the surface luminous intensity represent the intensity of light received by the human eye, and the mere display light also ignores the ambient light entering the eye.
Disclosure of Invention
In view of the above, the embodiments of the present application provide an eye protection method, an apparatus, an electronic device, and a storage medium based on blue light incident, which can adjust exposure of blue light radiation received by a user in a target environment, so as to protect eyes.
The technical scheme of the embodiment of the application is realized as follows:
in a first aspect, an embodiment of the present application provides an eye protection method based on blue light entering the eye, including the following steps:
obtaining a target distance between a target screen and a user's eye, wherein the target screen is opposite to the user's eye, and the target screen is positioned in a visual field range of the user's eye;
Determining a target illuminance value generated under the target distance from a preset corresponding relation between the distance and the illuminance based on the target distance;
converting the target illuminance value to obtain the exposure of blue light radiation;
determining a pupil size of the user's eye and determining an entrance spoke exposure into the pupil based on the pupil size and the Lan Guangfu exposure;
and adjusting the surface illuminance of the target screen according to the exposure amount of the incident light.
In one possible implementation manner, the preset distance and illuminance correspondence is obtained by the following manner:
obtaining illumination values generated by the target screen at different distances, determining a corresponding relation between a distance dimension ratio and an illumination ratio according to the illumination values generated by the target screen at different distances, and determining the corresponding relation between the distance dimension ratio and the illumination ratio as the corresponding relation between the distance and the illumination, wherein the distance dimension ratio represents a ratio of a current distance from the target screen to the dimension of the target screen, and the illumination ratio represents a ratio of the illumination values generated at the current distance to the surface illumination of the target screen.
In a possible implementation manner, the obtaining the target distance between the target screen and the eyes of the user includes:
detecting a first detection distance of the user's eyes to a distance detection device by the distance detection device; wherein the distance detection device is fixed at a first relative position to the target screen;
obtaining the target distance based on the first detection distance and the first relative position;
or acquiring current image information through an image acquisition device, wherein the current image information comprises eyes of the user, and the image acquisition device is fixed with a second relative position of the target screen;
acquiring a second detection distance from the eyes of the user to the image acquisition equipment from the image information based on the current image information;
the target distance is obtained based on the second detection distance and the second relative position.
In one possible embodiment, the determining the pupil size of the user's eye includes:
acquiring eye image information of the eyes of the user through an image acquisition device;
determining the pupil size of the user's eye based on the eye image information;
Or, acquiring user information of the current user, wherein the user information comprises at least one of age, gender and myopia degree;
and determining the pupil size of the eyes of the user based on the user information and a preset comparison table of the user information and the pupil size.
In one possible implementation manner, after the determining, from a preset distance-illuminance correspondence, a target illuminance value generated at the target distance, the method further includes:
determining the current display content of the target screen;
and determining the target illumination value under the current display content based on the preset display content and white screen illumination ratio.
In one possible implementation manner, after the determining, from a preset distance-illuminance correspondence, a target illuminance value generated at the target distance, the method further includes:
determining the ambient brightness of the current environment and the absorption quantity of the target screen to the ambient brightness;
the target illuminance value in the current environment is determined based on the ambient brightness and the absorption amount.
In a second aspect, an embodiment of the present application further provides a method for determining a low blue light device, including the following steps:
Detecting an equipment illumination value generated by target equipment at an optimal observation distance aiming at the target equipment under preset ambient brightness, wherein the optimal observation distance is determined according to the screen diagonal length of the target equipment;
performing conversion treatment on the illuminance value of the equipment to obtain the exposure of blue light radiation of the equipment;
determining a second exposure to the blue light radiation of the device based on the standard pupil size and the exposure to the blue light radiation of the device, the target device actually entering the human eye;
and when the second incident radiation exposure is smaller than or equal to a safety value, determining the target equipment as the low blue light equipment.
In a third aspect, an embodiment of the present application further provides an eye protection device based on blue light, where the device includes:
the system comprises an acquisition module, a display module and a display module, wherein the acquisition module is used for acquiring the target distance between a target screen and the eyes of a user, the target screen is opposite to the eyes of the user, and the target screen is positioned in the visual field range of the eyes of the user;
the first determining module is used for determining a target illumination value generated under the target distance from a preset corresponding relation between the distance and the illumination based on the target distance;
the conversion module is used for carrying out conversion processing on the target illuminance value to obtain the exposure of blue light radiation;
A second determining module configured to determine a pupil size of the user's eye and determine an exposure to entrance radiation into the pupil based on the pupil size and the Lan Guangfu exposure;
and the adjusting module is used for adjusting the surface illuminance of the target screen according to the eye-entering radiation exposure.
In a fourth aspect, an embodiment of the present application further provides an electronic device, including: a processor, a storage medium, and a bus, the storage medium storing machine-readable instructions executable by the processor, the processor in communication with the storage medium via the bus when the electronic device is running, the processor executing the machine-readable instructions to perform the blue-entry based eye protection method of any one of the first aspect.
In a fifth aspect, embodiments of the present application further provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the eye protection method according to any one of the first aspects.
The embodiment of the application has the following beneficial effects:
the method comprises the steps of obtaining a target distance between a target screen and eyes of a user, determining a target illuminance value generated under the target distance from a preset corresponding relation between the target distance and illuminance, and converting to obtain a blue light radiation exposure, wherein the obtained blue light radiation exposure is the blue light radiation exposure received by the current user under the target distance, and considering that the blue light radiation exposure finally entering eyes of the user is related to the pupil size, so that the pupil size is further obtained and calculated on the basis of the obtained blue light radiation exposure, the eye entrance radiation exposure entering the pupils is obtained, and finally, the surface illuminance of the target screen is adjusted according to the eye entrance radiation exposure, and the effect of protecting the eyes of the user is achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of steps S101-S105 provided in an embodiment of the present application;
FIG. 2 is a schematic flow chart of steps S201-S202 provided in an embodiment of the present application;
FIG. 3 is a schematic flow chart of steps S301-S302 provided in an embodiment of the present application;
FIG. 4 is a schematic flow chart of steps S401-S404 provided by an embodiment of the present application;
fig. 5 is a schematic structural diagram of an eye protection device based on blue light for eye penetration according to an embodiment of the present application;
fig. 6 is a schematic diagram of a composition structure of an electronic device according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application, and it should be understood that the drawings in the present application are for the purpose of illustration and description only and are not intended to limit the scope of the present application. In addition, it should be understood that the schematic drawings are not drawn to scale. A flowchart, as used in this disclosure, illustrates operations implemented according to some embodiments of the present application. It should be understood that the operations of the flow diagrams may be implemented out of order and that steps without logical context may be performed in reverse order or concurrently. Moreover, one or more other operations may be added to or removed from the flow diagrams by those skilled in the art under the direction of the present disclosure.
In the following description, reference is made to "some embodiments" which describe a subset of all possible embodiments, but it is to be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with one another without conflict.
In addition, the described embodiments are only some, but not all, embodiments of the application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present application.
In the following description, the terms "first", "second", "third" and the like are merely used to distinguish similar objects and do not represent a particular ordering of the objects, it being understood that the "first", "second", "third" may be interchanged with a particular order or sequence, as permitted, to enable embodiments of the application described herein to be practiced otherwise than as illustrated or described herein.
It should be noted that the term "comprising" will be used in embodiments of the application to indicate the presence of the features stated hereafter, but not to exclude the addition of other features.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of the application and is not intended to be limiting of the application.
Referring to fig. 1, fig. 1 is a schematic flow chart of steps S101-S105 of an eye protection method based on blue light entering eyes according to an embodiment of the present application, and will be described with reference to steps S101-S105 shown in fig. 1.
Step S101, obtaining a target distance between a target screen and eyes of a user, wherein the target screen is opposite to the eyes of the user, and the target screen is positioned in a visual field range of the eyes of the user;
step S102, determining a target illumination value generated under the target distance from a preset corresponding relation between the distance and the illumination based on the target distance;
step S103, converting the target illuminance value to obtain the exposure of blue light radiation;
step S104, determining the pupil size of the eyes of the user, and determining the exposure of the entrance pupil based on the pupil size and the Lan Guangfu exposure;
Step S105, adjusting the surface illuminance of the target screen according to the exposure of the incident light.
According to the eye protection method based on the blue light entering the eye, the target distance between the target screen and the eyes of the user is obtained, then the target illumination value generated under the target distance is determined from the preset corresponding relation between the distance and the illumination, and conversion is carried out, so that the blue light exposure is obtained, namely the blue light exposure received by the current user under the target distance, and the blue light exposure finally entering the eyes of the user is considered to be related to the pupil size, therefore, the pupil size is further obtained and calculated on the basis of the obtained blue light exposure, the eye entering exposure entering the pupil is obtained, and finally the surface illumination of the target screen is adjusted according to the eye entering exposure, so that the eye protection effect is achieved.
The above-described exemplary steps of the embodiments of the present application are described below, respectively.
In step S101, a target distance between a target screen and a user ' S eye is obtained, wherein the target screen is opposite to the user ' S eye, and the target screen is located within a visual field of the user ' S eye.
In some embodiments, the obtaining the target distance of the target screen from the user's eye comprises:
Detecting a first detection distance of the user's eyes to a distance detection device by the distance detection device; wherein the distance detection device is fixed at a first relative position to the target screen;
obtaining the target distance based on the first detection distance and the first relative position;
or acquiring current image information through an image acquisition device, wherein the current image information comprises eyes of the user, and the image acquisition device is fixed with a second relative position of the target screen;
acquiring a second detection distance from the eyes of the user to the image acquisition equipment from the image information based on the current image information;
the target distance is obtained based on the second detection distance and the second relative position.
Here, the target screen may carry a distance detection device (e.g., an infrared range finder) and/or an image acquisition device (e.g., a camera), when the target screen carries the distance detection device, the current target (current user) may be directly detected by the distance detection device, so as to determine the distance between the current user and the distance detection device, and the distance is taken as a first detection distance, and then, since the first relative positions of the distance detection device and the target screen are fixed, the target distance between the eyes of the user and the target screen may be further converted, and in the optimal case, the distance detection device and the target screen are located in the same plane, and the detection direction of the distance detection device and the direction of the target screen are consistent.
If the target screen can carry an image acquisition device, the second detection distance between the eyes of the user and the image acquisition device can be calculated from the current image information, specifically, when the image acquisition device is a single camera, the second detection distance can be calculated from the current image information based on a monocular distance measurement principle, when the image acquisition device is a double camera, the second detection distance can be calculated from the current image information based on a binocular distance measurement principle, then, because the second relative positions of the image acquisition device and the target screen are fixed, the target distance between the eyes of the user and the target screen can be further calculated, under the optimal condition, the image acquisition device and the target screen are located on the same plane, and the detection direction of the image acquisition device and the direction of the target screen are consistent (for example, the relation between a front camera of a mobile phone and the mobile phone screen).
In step S102, a target illuminance value generated at the target distance is determined from a preset distance-illuminance correspondence based on the target distance.
In some embodiments, the preset distance and illuminance correspondence is obtained by:
Obtaining illumination values generated by the target screen at different distances, determining a corresponding relation between a distance dimension ratio and an illumination ratio according to the illumination values generated by the target screen at different distances, and determining the corresponding relation between the distance dimension ratio and the illumination ratio as the corresponding relation between the distance and the illumination, wherein the distance dimension ratio represents a ratio of a current distance from the target screen to the dimension of the target screen, and the illumination ratio represents a ratio of the illumination values generated at the current distance to the surface illumination of the target screen.
Here, referring to table 1, in table 1, the distance size ratio on the left side is a ratio of a current distance from the target screen to a target screen size (diagonal length), and the right side is a corresponding ratio of a detected illuminance value at the current distance to a surface illuminance of the target screen, wherein the current distance may be measured according to the method provided in the above-described embodiment, the size of the target screen is fixed, the surface illuminance of the target screen is fixed, and thus the target illuminance value generated at the target distance may be found according to three known amounts.
TABLE 1
In some embodiments, because the target screen parameters of different specifications are different, the corresponding distance and illuminance correspondence of the target screen of different specifications can be preset for the target screen of different specifications to form a correspondence table, and when the target screen is used, the corresponding distance and illuminance correspondence is determined by acquiring the specification of the current target screen.
In some embodiments, referring to fig. 2, fig. 2 is a schematic flow chart of steps S201 to S202 provided in the embodiment of the present application, after determining a target illuminance value generated at the target distance from a preset distance-illuminance correspondence, steps S201 to S202 may also be performed, and specific steps will be described in connection with.
In step S201, the current display content of the target screen is determined.
In step S202, the target illuminance value under the current display content is determined based on a preset display content to white screen illuminance ratio.
In practical application, blue light is mainly generated by bottom light (white light) of a target screen, different colors are displayed on the target screen by adjusting the bottom light, the ratio of the display content to the white-screen illuminance ratio is different for the target screen, the target illuminance value under the current display content is different from the target illuminance value under the pure white state, referring to table 2, for different display contents, data in practical application can be counted to form a rough ratio of the display content to the white-screen illuminance, the target illuminance under the current display content is estimated by means of the ratio of the display content to the white-screen illuminance, for example, the current screen is displayed by office software, and correspondingly, the actual target illuminance value (estimated value) on the office interface is obtained by multiplying 4/5 on the basis of the obtained target illuminance value.
TABLE 2
In some embodiments, referring to fig. 3, fig. 3 is a schematic flow chart of steps S301 to S302 provided in the embodiment of the present application, after determining a target illuminance value generated at the target distance from a preset distance-illuminance correspondence, steps S301 to S302 may also be performed, and specific steps will be described in connection with.
In step S301, the ambient brightness of the current environment and the absorption amount of the ambient brightness by the target screen are determined.
In step S302, the target illuminance value in the current environment is determined based on the ambient brightness and the absorption amount.
In practical applications, the target illuminance value is not only generated by the target screen, but also affected by the ambient light (there is a light source in the environment where the target screen is located in general), and the target screen absorbs a part of the ambient light due to the material, so the target illuminance value in the current environment= (target screen) generates an illuminance value+an ambient illuminance value (ambient brightness) -absorption amount. In this way, the final measured target illuminance value can be made more accurate.
In step S103, the target illuminance value is converted to obtain a blue light radiation exposure.
In step S104, a pupil size of the user' S eye is determined, and an exposure to entrance radiation into the pupil is determined based on the pupil size and the Lan Guangfu exposure.
In some embodiments, the determining the pupil size of the user's eye comprises:
acquiring eye image information of the eyes of the user through an image acquisition device;
determining the pupil size of the user's eye based on the eye image information;
or, acquiring user information of the current user, wherein the user information comprises at least one of age, gender and myopia degree;
and determining the pupil size of the eyes of the user based on the user information and a preset comparison table of the user information and the pupil size.
Here, since the pupil sizes of different users are different, the exposure amounts of the entrance pupil are different, the image acquisition device may acquire the eye image information of the eyes of the user, and then extract the pupil portion from the eye image information, according to f/d=h/H (f is the focal length of the camera, d is the distance between the lens and the object, H is the length of the object in the image, and H is the length of the actual object), d may be obtained according to the principle of monocular ranging or binocular ranging in the above embodiment, and thus H may be obtained, so that the diameter of the pupil (pupil may be regarded as an approximate circle) may also be calculated, thereby obtaining the pupil size.
On the other hand, in the smart home field, the smart device (including the target screen) may pre-store user information in advance, for example, user information and sound information of the user a and the user B are pre-stored in the smart tv, and when the user a wakes up the smart tv through sound, the smart device may recognize that the user a is watching the tv through the sound of the user a, and further determine the pupil size of the eyes of the user a through pre-stored user information (at least one of age, sex, and myopia degree) of the user a according to a pre-set user information and a pupil size comparison table.
It should be noted that, the pupil size in the preset comparison table of the user information and the pupil size is the average pupil size under the standard indoor brightness (300 lx-450 lx), so that most situations can be adapted, and in order to cope with different indoor brightness or user habits, the user can additionally input a specific brightness value of the indoor brightness, so as to obtain the average pupil size under the brightness value; or, by installing a sensor on the intelligent device, the indoor brightness value is acquired in real time, and then a comparison table (networking adjustment or pre-storing specific data) of user information and pupil size is adjusted.
In step S105, the surface illuminance of the target screen is adjusted according to the exposure to the entrance beam.
Here, if the exposure to the incoming radiation exceeds the safety threshold, the surface illuminance of the target screen can be appropriately reduced, and the safety threshold can be flexibly set according to the actual situation.
In summary, the embodiment of the application has the following beneficial effects:
the method comprises the steps of obtaining a target distance between a target screen and eyes of a user, determining a target illuminance value generated under the target distance from a preset corresponding relation between the target distance and illuminance, and converting to obtain a blue light radiation exposure, wherein the obtained blue light radiation exposure is the blue light radiation exposure received by the current user under the target distance, and considering that the blue light radiation exposure finally entering eyes of the user is related to the pupil size, so that the pupil size is further obtained and calculated on the basis of the obtained blue light radiation exposure, the eye entrance radiation exposure entering the pupils is obtained, and finally, the surface illuminance of the target screen is adjusted according to the eye entrance radiation exposure, and the effect of protecting the eyes of the user is achieved.
In some embodiments, referring to fig. 4, the present application further provides a method for determining a low blue device, including steps S401 to S404, which will be described with reference to specific steps.
In step S401, detecting, for a target device, a device illuminance value generated by the target device at an optimal observation distance, where the optimal observation distance is determined according to a screen diagonal length of the target device, under a preset ambient brightness;
in step S402, performing conversion processing on the illuminance value of the device to obtain a blue light radiation exposure of the device;
in step S403, determining a second exposure to blue light radiation of the target device actually entering the human eye based on the standard pupil size and the device exposure;
in step S404, when the second incident radiation exposure is less than or equal to a safety value, the target device is determined to be the low blue device.
Here, the target device may be tested at a preset ambient brightness (300 lx-450 lx) and an optimal observation distance of the target device, and the standard pupil size is selected to calculate a second ocular radiation exposure into the human eye, and when the second ocular radiation exposure is less than or equal to a safety value, the target device is determined to be the low blue light device.
In natural light, the blue light radiation intensity is:；
where Ls is the irradiance function of the luminance sunlight with the environment. B (λ) is the hazard coefficient of light having a wavelength (λ), Δλ is the progressive step value of the wavelength of light in nm, and depending on the spectral test result, Δλ takes 5nm or 1nm as a step in the embodiment of the present application.
When the display device is watched, the blue light radiation intensity of the incident illuminance is: er=lr×cr, where Cr is the blue radiation duty cycle in the incident luminance and Lr is the display irradiance function; the Lr includes two parts, namely light Ld emitted from the display device and ambient light Lh.
，/>；
When er+.e0, the display device can be considered to be harmless to blue radiation.
The pupil diameter of the human eye is maintained at a stable level when the entrance illuminance is 100 lx-400 lx. Beyond 400Lx, there is a second constriction in pupil diameter, at which point the glasses will activate a second protection mechanism. Therefore, blue light damage irradiance of 0-400 lx sunlight can be used as a safety area, and more than 400lx can be used as a risk area. After the sunlight illuminance exceeds 1000lx (blue light injury irradiance per 1lux D65 sunlight is 1mW/m 2), the blue light injury irradiance of D65 sunlight is about 1000mW/m2, which has reached the hazard limit of GB/T20145 (equivalent CIE S009/E: 2002) for light and light system safety (in case of long-term viewing of the screen).
The test finds that 300 lux-750 lux is a comfortable area in the environment brightness according to the national standard test, the corresponding incoming environment illumination is 120 lux-300 lux, the median value is 210lux, and therefore the blue light weighted irradiance of the corresponding sunlight is taken as a limit value as follows:
First-order: er +.200 mW/m2 (soft region);
and (2) second-stage: 200 mW/m2< Er +.400 mW/m2 (comfort zone);
three stages of 400 mW/m2< Er +.700 mW/m2 (bright area);
class IV 700 mW/m2< Er+.1000 mW/m2 (risk zone);
five stages: er >1000 mW/m2 (long term hazardous area).
In the practical use process, for the test of the ambient brightness, the traditional method theoretically has a uniform ambient illuminance, but in the practical measurement, the measured ambient illuminance has a significant difference in the direction, that is, the ambient light has a certain directivity in practice. From this point of view, as the most basic ambient light test, measurement should be made from the position where the eyes of the viewer look toward the screen. This value is the value of the illumination entering the human eye. If the ambient illuminance measured before the display device is not placed is Lz0, it is desirable that the measured illuminance value is still Lz0 in the case of displaying the middle gray-scale screen at the same position after the display device is placed. The display device can be regarded as a seamless replacement for the environmental background, and the irritation and harm to human eyes are minimal.
The simpler and direct method is as follows: and (3) testing the screen center by using an illuminance spectrometer at the position where the human eyes watch the screen, so that the entrance illuminance value and the spectral distribution thereof can be directly obtained. Which already contains ambient light and display light.
From the perspective of the manufacturer, the use scene of the display device is regulated, including the viewing distance, the ambient illuminance, the spectrum requirement thereof, and the like, so that the spectrum, the brightness range, and the like, which should be adopted for display by the display device can be calculated in advance.
For the evaluation mechanism, if the manufacturer specifies the use scene of the display device, the blue light hazard weighted irradiance meets the standard in the use process by testing the spectrum of the incident light in the specified scene. If the manufacturer does not offer his usage scenario, then his viewing distance may be defaulted to 3 times the screen height, using D65 sunlight with 300Lux illumination for the scene, 200Lux D65 sunlight for the in-eye ambient illumination, and 200mwW/m2 for the blue weighted irradiance. Considering that the display illuminance is reduced to 20% of the surface illuminance when reaching the 3-fold screen height position of the human eye, the ambient illuminance reaches 90% of the human eye due to the absorption of the screen, and the comprehensive entrance illuminance (i.e., the second entrance radiance exposure) is as follows:
Lr’= Ld’ ×0.2 + Lh’ ×0.9；
where Ld 'is the highest illumination of the display surface, and Lh' is 200lux.
According to the method for determining the low blue light equipment, the second eye radiation exposure of the target equipment at the optimal observation distance is simulated under the default or appointed environment brightness, and whether the target screen hurts the human eyes in the cup simulated environment is determined according to the relation between the value of the second eye radiation exposure and the safety value, so that whether the target equipment is the low blue light equipment is determined.
Based on the same inventive concept, the embodiment of the present application further provides an eye protection device based on the eye-entering blue light, which corresponds to the eye protection method based on the eye-entering blue light in the first embodiment, and since the principle of solving the problem of the device in the embodiment of the present application is similar to that of the eye protection method based on the eye-entering blue light, the implementation of the device can refer to the implementation of the method, and the repetition is omitted.
Fig. 5 is a schematic structural diagram of an eye protection device 500 based on blue light for eye penetration according to an embodiment of the present application. The eye-shielding device 500 based on blue light for eye includes:
an obtaining module 501, configured to obtain a target distance between a target screen and an eye of a user, where the target screen is opposite to the eye of the user, and the target screen is located within a field of view of the eye of the user;
a first determining module 502, configured to determine, based on the target distance, a target illuminance value generated at the target distance from a preset relationship between distance and illuminance;
a conversion module 503, configured to perform conversion processing on the target illuminance value to obtain a blue light radiation exposure;
a second determination module 504 configured to determine a pupil size of the user's eye and determine an exposure to entrance radiation into the pupil based on the pupil size and the Lan Guangfu exposure;
And the adjusting module 505 is configured to adjust the surface illuminance of the target screen according to the exposure amount of the incident beam.
It will be appreciated by those skilled in the art that the function of the implementation of the units in the blue-entry based eye-protection device 500 shown in fig. 5 can be understood with reference to the foregoing description of the blue-entry based eye-protection method. The functions of the units in the blue-light-entry-based eye protection device 500 shown in fig. 5 may be implemented by a program running on a processor, or by specific logic circuits.
In one possible implementation, the first determining module 502 obtains the preset correspondence between the distance and the illuminance by:
obtaining illumination values generated by the target screen at different distances, determining a corresponding relation between a distance dimension ratio and an illumination ratio according to the illumination values generated by the target screen at different distances, and determining the corresponding relation between the distance dimension ratio and the illumination ratio as the corresponding relation between the distance and the illumination, wherein the distance dimension ratio represents a ratio of a current distance from the target screen to the dimension of the target screen, and the illumination ratio represents a ratio of the illumination values generated at the current distance to the surface illumination of the target screen.
In one possible implementation, the obtaining module 501 obtains a target distance from the target screen to the eyes of the user, including:
detecting a first detection distance of the user's eyes to a distance detection device by the distance detection device; wherein the distance detection device is fixed at a first relative position to the target screen;
obtaining the target distance based on the first detection distance and the first relative position;
or acquiring current image information through an image acquisition device, wherein the current image information comprises eyes of the user, and the image acquisition device is fixed with a second relative position of the target screen;
acquiring a second detection distance from the eyes of the user to the image acquisition equipment from the image information based on the current image information;
the target distance is obtained based on the second detection distance and the second relative position.
In one possible implementation, the second determining module 504 determines a pupil size of the user's eye, including:
acquiring eye image information of the eyes of the user through an image acquisition device;
determining the pupil size of the user's eye based on the eye image information;
Or, acquiring user information of the current user, wherein the user information comprises at least one of age, gender and myopia degree;
and determining the pupil size of the eyes of the user based on the user information and a preset comparison table of the user information and the pupil size.
In one possible implementation manner, after the first determining module 502 determines the target illuminance value generated at the target distance from the preset correspondence between distance and illuminance, the method further includes:
determining the current display content of the target screen;
and determining the target illumination value under the current display content based on the preset display content and white screen illumination ratio.
In one possible implementation manner, after the first determining module 502 determines the target illuminance value generated at the target distance from the preset correspondence between distance and illuminance, the method further includes:
determining the ambient brightness of the current environment and the absorption quantity of the target screen to the ambient brightness;
the target illuminance value in the current environment is determined based on the ambient brightness and the absorption amount.
According to the eye protection device based on the blue light entering the eye, the target distance between the target screen and the eyes of the user is obtained, then the target illumination value generated under the target distance is determined from the preset corresponding relation between the distance and the illumination, and conversion is carried out, so that the blue light exposure is obtained, namely the blue light exposure received by the current user under the target distance, and the blue light exposure finally entering the eyes of the user is considered to be related to the pupil size, therefore, the pupil size is further obtained and calculated on the basis of the obtained blue light exposure, the eye entering exposure entering the pupil is obtained, and finally the surface illumination of the target screen is adjusted according to the eye entering exposure, so that the eye protection effect is achieved.
As shown in fig. 6, fig. 6 is a schematic diagram of a composition structure of an electronic device 600 according to an embodiment of the present application, where the electronic device 600 includes:
the eye protection method comprises a processor 601, a storage medium 602 and a bus 603, wherein the storage medium 602 stores machine-readable instructions executable by the processor 601, when the electronic device 600 is running, the processor 601 communicates with the storage medium 602 through the bus 603, and the processor 601 executes the machine-readable instructions to execute the steps of the eye protection method based on the blue light entering eyes according to the embodiment of the application.
In practice, the various components in the electronic device 600 are coupled together via a bus 603. It is understood that the bus 603 is used to enable connected communications between these components. The bus 603 includes a power bus, a control bus, and a status signal bus in addition to a data bus. But for clarity of illustration the various buses are labeled as bus 603 in fig. 6.
According to the electronic equipment, the target distance between the target screen and the eyes of the user is obtained, then the target illumination value generated under the target distance is determined from the preset corresponding relation between the distance and the illumination, and conversion is carried out, so that the obtained blue light exposure is the blue light exposure received by the current user under the target distance, and the blue light exposure finally entering the eyes of the user is considered to be related to the pupil size, so that the pupil size is further obtained and calculated on the basis of the obtained blue light exposure, the eye entering exposure entering the pupil is obtained, and finally the surface illumination of the target screen is adjusted according to the eye entering exposure, so that the effect of protecting the eyes of the user is achieved.
The embodiment of the application also provides a computer readable storage medium, wherein the storage medium stores executable instructions, and when the executable instructions are executed by at least one processor 601, the eye protection method based on the blue light for eye penetration according to the embodiment of the application is realized.
In some embodiments, the storage medium may be a magnetic random Access Memory (FRAM, ferromagneticRandom Access Memory), read Only Memory (ROM), programmable Read Only Memory (PROM, programmable Read-Only Memory), erasable programmable Read Only Memory (EPROM, erasableProgrammable Read-Only Memory), electrically erasable programmable Read Only Memory (EEPROM, electricallyErasable Programmable Read-Only Memory), flash Memory (Flash Memory), magnetic surface Memory, optical disk, or compact disk Read Only Memory (CD-ROM, compact Disc Read-Only Memory), or the like; but may be a variety of devices including one or any combination of the above memories.
In some embodiments, the executable instructions may be in the form of programs, software modules, scripts, or code, written in any form of programming language (including compiled or interpreted languages, or declarative or procedural languages), and they may be deployed in any form, including as stand-alone programs or as modules, components, subroutines, or other units suitable for use in a computing environment.
As an example, the executable instructions may, but need not, correspond to files in a file system, may be stored as part of a file that holds other programs or data, for example, in one or more scripts in a hypertext markup Language (HTML, hyperTextMarkup Language) document, in a single file dedicated to the program in question, or in multiple coordinated files (e.g., files that store one or more modules, sub-programs, or portions of code).
As an example, executable instructions may be deployed to be executed on one computing device or on multiple computing devices located at one site or, alternatively, distributed across multiple sites and interconnected by a communication network.
The computer readable storage medium obtains the target distance from the target screen to the eyes of the user, then determines the target illumination value generated under the target distance from the preset corresponding relation between the target distance and the illumination, and converts the target illumination value to obtain the blue light exposure, wherein the obtained blue light exposure is the blue light exposure received by the current user under the target distance, and the blue light exposure finally entering the eyes of the user is considered to be related to the pupil size, so that the pupil size is further obtained and calculated on the basis of the obtained blue light exposure, the eye entrance exposure entering the pupil is obtained, and finally the surface illumination of the target screen is adjusted according to the eye entrance exposure, so that the effect of protecting the eyes of the user is achieved.
In the several embodiments provided in the present application, it should be understood that the disclosed method and electronic device may be implemented in other manners. The above described device embodiments are only illustrative, e.g. the division of the units is only one logical function division, and there may be other divisions in practice, such as: multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. In addition, the various components shown or discussed may be coupled or directly coupled or communicatively coupled to each other via some interface, whether indirectly coupled or communicatively coupled to devices or units, whether electrically, mechanically, or otherwise.
The modules described as separate components may or may not be physically separate, and components shown as modules may or may not be physical units, may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer readable storage medium executable by a processor. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a platform server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, etc.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily appreciate variations or alternatives within the scope of the present application. Therefore, the protection scope of the application is subject to the protection scope of the claims.
Claims (7)
1. An eye protection method based on blue light entering eyes is characterized by comprising the following steps:
obtaining a target distance between a target screen and a user's eye, wherein the target screen is opposite to the user's eye, and the target screen is positioned in a visual field range of the user's eye;
the target screen carries a distance detection device and an image acquisition device, and the obtaining of the target distance between the target screen and eyes of a user comprises the following steps: detecting a first detection distance of the user's eyes to a distance detection device by the distance detection device; wherein the distance detection device is fixed at a first relative position to the target screen;
obtaining the target distance based on the first detection distance and the first relative position;
or acquiring current image information through an image acquisition device, wherein the current image information comprises eyes of the user, and the image acquisition device is fixed with a second relative position of the target screen;
acquiring a second detection distance from the eyes of the user to the image acquisition equipment from the image information based on the current image information;
obtaining the target distance based on the second detection distance and the second relative position;
Determining a target illuminance value generated under the target distance from a preset corresponding relation between the distance and the illuminance based on the target distance;
converting the target illuminance value to obtain the exposure of blue light radiation;
determining a pupil size of the user's eye and determining an entrance spoke exposure into the pupil based on the pupil size and the Lan Guangfu exposure;
the determining the pupil size of the user's eye includes:
acquiring eye image information of the eyes of the user through an image acquisition device;
determining the pupil size of the user's eye based on the eye image information;
or, acquiring user information of the current user, wherein the user information comprises at least one of age, gender and myopia degree;
determining the pupil size of the user eye based on the user information and a preset user information and pupil size comparison table;
and adjusting the surface illuminance of the target screen according to the exposure amount of the incident light.
2. The method according to claim 1, wherein the preset distance-illuminance correspondence is obtained by:
obtaining illumination values generated by the target screen at different distances, determining a corresponding relation between a distance dimension ratio and an illumination ratio according to the illumination values generated by the target screen at different distances, and determining the corresponding relation between the distance dimension ratio and the illumination ratio as the corresponding relation between the distance and the illumination, wherein the distance dimension ratio represents a ratio of a current distance from the target screen to the dimension of the target screen, and the illumination ratio represents a ratio of the illumination values generated at the current distance to the surface illumination of the target screen.
3. The method of claim 1, wherein after determining the target illuminance value generated at the target distance from the preset distance-illuminance correspondence, the method further comprises:
determining the current display content of the target screen;
and determining the target illumination value under the current display content based on the preset display content and white screen illumination ratio.
4. The method of claim 1, wherein after determining the target illuminance value generated at the target distance from the preset distance-illuminance correspondence, the method further comprises:
determining the ambient brightness of the current environment and the absorption quantity of the target screen to the ambient brightness;
the target illuminance value in the current environment is determined based on the ambient brightness and the absorption amount.
5. An eye-shielding device based on blue light entering the eye, the device comprising:
the system comprises an acquisition module, a display module and a display module, wherein the acquisition module is used for acquiring the target distance between a target screen and the eyes of a user, the target screen is opposite to the eyes of the user, and the target screen is positioned in the visual field range of the eyes of the user;
the target screen carries a distance detection device and an image acquisition device, and the obtaining of the target distance between the target screen and eyes of a user comprises the following steps: detecting a first detection distance of the user's eyes to a distance detection device by the distance detection device; wherein the distance detection device is fixed at a first relative position to the target screen;
Obtaining the target distance based on the first detection distance and the first relative position;
or acquiring current image information through an image acquisition device, wherein the current image information comprises eyes of the user, and the image acquisition device is fixed with a second relative position of the target screen;
acquiring a second detection distance from the eyes of the user to the image acquisition equipment from the image information based on the current image information;
obtaining the target distance based on the second detection distance and the second relative position;
the first determining module is used for determining a target illumination value generated under the target distance from a preset corresponding relation between the distance and the illumination based on the target distance;
the conversion module is used for carrying out conversion processing on the target illuminance value to obtain the exposure of blue light radiation;
a second determining module configured to determine a pupil size of the user's eye and determine an exposure to entrance radiation into the pupil based on the pupil size and the Lan Guangfu exposure;
the determining the pupil size of the user's eye includes:
acquiring eye image information of the eyes of the user through an image acquisition device;
Determining the pupil size of the user's eye based on the eye image information;
or, acquiring user information of the current user, wherein the user information comprises at least one of age, gender and myopia degree;
determining the pupil size of the user eye based on the user information and a preset user information and pupil size comparison table;
and the adjusting module is used for adjusting the surface illuminance of the target screen according to the eye-entering radiation exposure.
6. An electronic device, comprising: a processor, a storage medium, and a bus, the storage medium storing machine-readable instructions executable by the processor, the processor in communication with the storage medium via the bus when the electronic device is operating, the processor executing the machine-readable instructions to perform the blue-entry based eye protection method of any one of claims 1 to 4.
7. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when executed by a processor, performs the eye protection method based on blue light entry according to any one of claims 1 to 4.
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