CN112187992A - Method for testing blue light of mobile phone - Google Patents
Method for testing blue light of mobile phone Download PDFInfo
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- CN112187992A CN112187992A CN202011039011.2A CN202011039011A CN112187992A CN 112187992 A CN112187992 A CN 112187992A CN 202011039011 A CN202011039011 A CN 202011039011A CN 112187992 A CN112187992 A CN 112187992A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/24—Arrangements for testing
Abstract
The invention discloses a method for testing blue light of a mobile phone. In the invention, the average brightness in the effective field angle center F is tested, the light energy received by the aperture D limit value of the diaphragm is limited by the aperture F, and finally the light energy is received by the integrating sphere. Such a test system may meet the following requirements: (1) imaging the light source onto a detector; (2) the device is provided with a circular field diaphragm which forms an angle range with the average field as a center f; (3) has a circular entrance pupil, which is an averaging stop as in irradiance measurement; for small angles, the relation between the diameter of a detector and the focal length in the imaging system is d ═ a · H, so that a schematic diagram of a blue light measuring system is obtained; measuring and evaluating the blue light hazard characteristics of a certain light source by taking the light source as a core; the purpose of evaluating the blue light hazard condition at any position is achieved by combining a professional detection instrument for blue light hazard, so that the test effect is more accurate, and the operation of people is simpler and more convenient.
Description
Technical Field
The invention belongs to the technical field of blue light testing, and particularly relates to a method for testing blue light of a mobile phone.
Background
With the increasing awareness that people are drowned in electronic products for a long time, various uncomfortable symptoms of eyes occur, attention is paid to the concept of blue light, which is a reason for eye injury, and the concept of "blue light" of eye injury refers to light which can cause injury to eyes. In sunlight, blue light exists, and in a mobile phone screen, the blue light can be generated. However, the wavelength ranges of the blue light in the sunlight and the blue light in the screen of the mobile phone are different, and the blue light have some differences; however, if people stare at a bright computer and mobile phone screen for seven or eight hours, and four or five hours, the eyes will begin to feel tired and sore. Therefore, the blue light prevention is required, and is the blue light aiming at the screen of the mobile phone and the computer.
However, the common testing method is not accurate enough, and meanwhile, the mobile phone cannot be fixed, so that the mobile phone is easy to shake in the testing process, and the testing result is not accurate enough.
Disclosure of Invention
The invention aims to: in order to solve the above-mentioned problems, a method for testing blue light of a mobile phone is provided.
The technical scheme adopted by the invention is as follows: the utility model provides a test method of cell-phone blue light, includes central processing unit, blue light test module, environment light detection module, power supply module, data analysis module, data output module, central processing unit's output is connected with data analysis module's input, data analysis module's output is connected with data output module's input, environment light detection module's output is connected with blue light test module's input, blue light test module's output is connected with central processing unit's input, power supply module's power output end is connected with central processing unit's power input end, the required cell-phone when the test is fixed with in blue light test module's inside.
In a preferred embodiment, the preparation process of the test method for blue light of the mobile phone comprises the following steps:
s1, opening the environment monitoring module in the environment light detection module, starting to test the environment of the blue light test of the mobile phone, and starting to perform the next test when the test result can meet the requirement of the blue light test of the mobile phone;
s2, connecting the internal power supply wiring of the power supply module with the internal power supply input end of the central processing unit, and turning on a power switch in the blue light test module; the instrument firstly carries out self-test and self-calibration, after the self-calibration is finished, the display values of the three displays are all 100, which indicates that the transmittance is 100% when no object to be tested exists, and then further blue light test of the mobile phone can be started.
In a preferred embodiment, after step S2, the mobile phone to be tested is fixed to the mobile phone fixing module inside the blue light testing module, and when the mobile phone to be tested is fixed, one end of the mobile phone is fixed to one end of the clamping piece, and the other end of the mobile phone is fixed by the spring pressing block, and then the test is started.
In a preferred embodiment, the method for testing blue light includes the following steps:
s21: the average brightness in the effective field angle center F is tested, the light energy received by the limit value of the diaphragm aperture D is limited by the diaphragm aperture F, and finally the light energy is received by the integrating sphere. Such a test system may meet the following requirements: (1) imaging the light source onto a detector; (2) the device is provided with a circular field diaphragm which forms an angle range with the average field as a center f; (3) has a circular entrance pupil, which is an averaging stop as in irradiance measurement;
s22: for small angles, the relation between the diameter of the detector and the focal length in the imaging system is d ═ a · H, so that a schematic diagram of the blue light measurement system is obtained.
In a preferred embodiment, after the schematic diagram of the measurement system is obtained in step S22, the radiance and the spectrum are measured respectively, the spectral radiance is calculated, the blue light weighted radiance is calculated, and finally the blue light weighted radiance is compared with the blue light hazard exposure radiance limit value of a certain hazard level, so as to determine the blue light hazard level of the light source or the light source system.
In a preferred embodiment, in the blue light testing method, the measurement field, the measurement distance, the measurement angle and the aperture stop size are specified as follows: the field angle: 1.7mrad, llmrad, lOOmrad; measuring the distance: 200mm away from the lamp or 500lx illumination is generated; measuring an angle: a direction of maximum radiance; aperture diaphragm: 7 mm.
In a preferred embodiment, after the blue light hazard level of the light source or the light source system is determined, the data analysis module inside the blue light test module transmits information to the inside of the central processing unit, the information is input into the data analysis module through the information transmitting terminal after the information is received by the inside of the central processing unit, and the data analysis module inside the data analysis module sends the result obtained by analysis to the inside of the data output module after the analysis, so that the result of the blue light test of the mobile phone is obtained.
Advantageous effects
Compared with the prior art, the invention has the advantages that:
1. in the invention, a light source is taken as a core. The blue light hazard characteristic of a certain light source is measured and evaluated, so that people can use the blue light hazard characteristic in a non-stop environment, the limitation of the blue light hazard standard detection method is overcome, and the blue light hazard measurement method based on the actual light environment is provided. The method takes 'light' as a core, and the measurement and evaluation are not performed on a certain lamp, but are performed on the whole of the light ring. Through studying the spatial distribution characteristic and the spectral characteristic of the blue light weighted radiance, the blue light hazard detection method based on real light and environment is established, and the purpose of evaluating the blue light hazard condition at any position is realized by combining a professional detection instrument for blue light hazard, so that the test effect is more accurate, and the operation of people is simpler and more convenient.
2. In the invention, the mobile phone fastening device is arranged in the blue light testing module, so that the mobile phone can be prevented from sliding during measurement, the mobile phone is prevented from randomly shaking during the testing process, the stability of the mobile phone is increased, and the accuracy during the blue light testing process is improved.
Drawings
FIG. 1 is a flow chart of the system of the present invention.
The labels in the figure are: 1-a central processing unit, 2-a blue light testing module, 3-an ambient light detection module, 4-a power supply module, 5-a data analysis module and 6-a data output module.
Detailed Description
The invention will be further described with reference to specific embodiments shown in the drawings.
The first embodiment is as follows:
the utility model provides a test method of cell-phone blue light, including central processing unit 1, blue light test module 2, ambient light detection module 3, power supply module 4, data analysis module 5, data output module 6, central processing unit 1's output is connected with data analysis module 5's input, data analysis module 5's output is connected with data output module 6's input, ambient light detection module 3's output is connected with blue light test module 2's input, blue light test module 2's output is connected with central processing unit 1's input. The inside of the blue light test module 2 is tested for blue light: the blue light hazard refers to the potential of retina damage caused by photochemical action after human eyes are irradiated by radiation with the wavelength of 400-500 nm, and it should be noted that the blue light hazard refers to the possibility of causing retina damage by blue light and does not mean that the retina is necessarily damaged by the blue light. In fact, whether damage is caused, and the severity of the damage, is related to the amount of bluing agent received by the retina, i.e. the product of the intensity of blue light and the duration of the action, which is also an important parameter in the detection and calculation of blue light hazard. The power output end of the power supply module 4 is connected with the power input end of the central processing unit 1, and a mobile phone required for testing is fixed inside the blue light testing module 2;
the preparation process of the test method for blue light of the mobile phone comprises the following steps:
s1, opening an environment monitoring module in the environment light detection module 3, starting to test the environment of the blue light test of the mobile phone, and starting to perform the next test when the test result can meet the requirement of the blue light test of the mobile phone;
s2, connecting the internal power supply wiring of the power supply module 4 with the internal power supply input end of the central processing unit 1, and turning on the power switch inside the blue light test module 2; the instrument firstly carries out self-test and self-calibration, after the self-calibration is finished, the display values of the three displays are all 100, which indicates that the transmittance is 100% when no object to be tested exists, and then further blue light test of the mobile phone can be started; after the step S2, the mobile phone to be tested is fixed in the mobile phone fixing module inside the blue light testing module 2, when the mobile phone to be tested is fixed, one end of the mobile phone is fixed at one end of the clamping piece, and the other end of the mobile phone is fixed by the spring pressing block and then the test is started.
The method for testing the blue light comprises the following steps:
s21: in the standard blue light measuring method, the corresponding regulations of the measuring field of view, the measuring distance, the measuring angle and the aperture diaphragm size are as follows: the field angle: 1.7 mrad; measuring the distance: 200mm away from the lamp or 500lx illumination is generated; measuring an angle: a direction of maximum radiance; aperture diaphragm: 7 mm. The average brightness in the effective field angle center F is tested, the light energy received by the limit value of the diaphragm aperture D is limited by the diaphragm aperture F, and finally the light energy is received by the integrating sphere. Such a test system may meet the following requirements: (1) imaging the light source onto a detector; (2) the device is provided with a circular field diaphragm which forms an angle range with the average field as a center f; (3) has a circular entrance pupil, which is an averaging stop as in irradiance measurement;
s22: for small angles, the relation between the diameter of the detector and the focal length in the imaging system is d ═ a · H, so that a schematic diagram of the blue light measurement system is obtained.
And step S21, after the schematic diagram of the measuring system is obtained, the radiance and the spectrum are respectively measured, the spectrum radiance is obtained through calculation, the blue light weighted radiance is obtained through calculation, and finally the blue light weighted radiance is compared with the blue light hazard exposure radiance limit value of a certain hazard level, and the blue light hazard level of the light source or the light source system is determined. After the blue light hazard level of the light source or the light source system is determined, the data analysis module inside the blue light test module 2 transmits information to the inside of the central processing unit 1, after the information is received inside the central processing unit 1, the information is input into the data analysis module 5 through the information sending end, and the data analysis module inside the data analysis module 5 sends the analyzed result to the inside of the data output module 6 after the analysis, so that the blue light test result of the mobile phone is obtained.
Example two:
the utility model provides a test method of cell-phone blue light, including central processing unit 1, blue light test module 2, ambient light detection module 3, power supply module 4, data analysis module 5, data output module 6, central processing unit 1's output is connected with data analysis module 5's input, data analysis module 5's output is connected with data output module 6's input, ambient light detection module 3's output is connected with blue light test module 2's input, blue light test module 2's output is connected with central processing unit 1's input. The inside of the blue light test module 2 is tested for blue light: the blue light hazard refers to the potential of retina damage caused by photochemical action after human eyes are irradiated by radiation with the wavelength of 400-500 nm, and it should be noted that the blue light hazard refers to the possibility of causing retina damage by blue light and does not mean that the retina is necessarily damaged by the blue light. In fact, whether damage is caused, and the severity of the damage, is related to the amount of bluing agent received by the retina, i.e. the product of the intensity of blue light and the duration of the action, which is also an important parameter in the detection and calculation of blue light hazard. The power output end of the power supply module 4 is connected with the power input end of the central processing unit 1, and a mobile phone required during testing is fixed inside the blue light testing module 2.
The preparation process of the test method for blue light of the mobile phone comprises the following steps:
s1, opening an environment monitoring module in the environment light detection module 3, starting to test the environment of the blue light test of the mobile phone, and starting to perform the next test when the test result can meet the requirement of the blue light test of the mobile phone;
s2, connecting the internal power supply wiring of the power supply module 4 with the internal power supply input end of the central processing unit 1, and turning on the power switch inside the blue light test module 2; the instrument firstly carries out self-test and self-calibration, after the self-calibration is finished, the display values of the three displays are all 100, which indicates that the transmittance is 100% when no object to be tested exists, and then further blue light test of the mobile phone can be started; after the step S2, the mobile phone to be tested is fixed in the mobile phone fixing module inside the blue light testing module 2, when the mobile phone to be tested is fixed, one end of the mobile phone is fixed at one end of the clamping piece, and the other end of the mobile phone is fixed by the spring pressing block and then the test is started.
The method for testing the blue light comprises the following steps:
s21: in the standard blue light measuring method, the corresponding regulations of the measuring field of view, the measuring distance, the measuring angle and the aperture diaphragm size are as follows: the field angle: llmrad; measuring the distance: 200mm away from the lamp or 500lx illumination is generated; measuring an angle: a direction of maximum radiance; aperture diaphragm: 7 mm; the average brightness in the effective field angle center F is tested, the light energy received by the limit value of the diaphragm aperture D is limited by the diaphragm aperture F, and finally the light energy is received by the integrating sphere. Such a test system may meet the following requirements: (1) imaging the light source onto a detector; (2) the device is provided with a circular field diaphragm which forms an angle range with the average field as a center f; (3) has a circular entrance pupil, which is an averaging stop as in irradiance measurement;
s22: for small angles, the relation between the diameter of the detector and the focal length in the imaging system is d ═ a · H, so that a schematic diagram of the blue light measurement system is obtained.
And step S22, after the schematic diagram of the measuring system is obtained, the radiance and the spectrum are respectively measured, the spectrum radiance is obtained through calculation, the blue light weighted radiance is obtained through calculation, and finally the blue light weighted radiance is compared with the blue light hazard exposure radiance limit value of a certain hazard level, and the blue light hazard level of the light source or the light source system is determined. After the blue light hazard level of the light source or the light source system is determined, the data analysis module inside the blue light test module 2 transmits information to the inside of the central processing unit 1, after the information is received inside the central processing unit 1, the information is input into the data analysis module 5 through the information sending end, and the data analysis module inside the data analysis module 5 sends the analyzed result to the inside of the data output module 6 after the analysis, so that the blue light test result of the mobile phone is obtained.
The above is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that several variations and modifications can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (7)
1. The testing method of the blue light of the mobile phone comprises a central processing unit (1), a blue light testing module (2), an ambient light detecting module (3), a power supply module (4), a data analyzing module (5) and a data output module (6), and is characterized in that: the output of central processing unit (1) is connected with the input of data analysis module (5), the output of data analysis module (5) is connected with the input of data output module (6), the output of environment light detection module (3) is connected with the input of blue light test module (2), the output of blue light test module (2) is connected with the input of central processing unit (1), the power output end of power supply module (4) is connected with the power input of central processing unit (1), required cell-phone when the inside of blue light test module (2) is fixed with the test.
2. The method for testing blue light of mobile phone according to claim 1, wherein: the preparation process of the test method for the blue light of the mobile phone comprises the following steps:
s1, opening an environment monitoring module in the environment light detection module (3), starting to test the environment of the blue light test of the mobile phone, and starting to perform the next test when the test result can meet the requirement of the blue light test of the mobile phone;
s2, connecting the internal power supply wiring of the power supply module (4) with the internal power supply input end of the central processing unit (1), and turning on a power switch inside the blue light test module (2); the instrument firstly carries out self-test and self-calibration, after the self-calibration is finished, the display values of the three displays are all 100, which indicates that the transmittance is 100% when no object to be tested exists, and then further blue light test of the mobile phone can be started.
3. The method for testing blue light of mobile phone according to claim 2, wherein: and fixing the mobile phone to be tested on the mobile phone fixing module in the blue light testing module (2) after the step S2, fixing one end of the mobile phone on one end of the clamping piece, and starting to test after the other end of the mobile phone is fixed through the spring extrusion block.
4. The method for testing blue light of mobile phone according to claim 1, wherein: the method for testing the blue light comprises the following steps:
s21: the average brightness in the effective field angle center F is tested, the light energy received by the limit value of the diaphragm aperture D is limited by the diaphragm aperture F, and finally the light energy is received by the integrating sphere. Such a test system may meet the following requirements: (1) imaging the light source onto a detector; (2) the device is provided with a circular field diaphragm which forms an angle range with the average field as a center f; (3) has a circular entrance pupil, which is an averaging stop as in irradiance measurement;
s22: for small angles, the relation between the diameter of the detector and the focal length in the imaging system is d ═ a · H, so that a schematic diagram of the blue light measurement system is obtained.
5. The method for testing blue light of mobile phone according to claim 4, wherein: after the schematic diagram of the measurement system is obtained in step S22, radiance and spectrum are measured respectively, spectrum radiance is obtained through calculation, blue light weighted radiance is obtained through calculation, and the blue light weighted radiance is compared with a blue light hazard exposure radiance limit value of a certain hazard level, so as to determine the blue light hazard level of the light source or the light source system.
6. The method for testing blue light of mobile phone according to claim 1, wherein: in the blue light testing method, the corresponding regulations of the measurement field of view, the measurement distance, the measurement angle and the aperture diaphragm size are as follows: the field angle: 1.7mrad, llmrad, lOOmrad; measuring the distance: 200mm away from the lamp or 500lx illumination is generated; measuring an angle: a direction of maximum radiance; aperture diaphragm: 7 mm.
7. The method for testing blue light of mobile phone according to claim 5, wherein: after the blue light hazard level of a light source or a light source system is measured and determined, the data analysis module in the blue light test module (2) transmits information to the inside of the central processing unit (1), the information is input into the data analysis module (5) through the information transmitting end after the information is received in the central processing unit (1), and the data analysis module in the data analysis module (5) sends the analyzed result to the inside of the data output module (6) after analysis, so that the blue light test result of the mobile phone is obtained.
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Application publication date: 20210105 |