Light environment parameter correction method and correction device based on age difference

Abstract

The present invention provides a method and device for correcting light environment parameters based on age differences. The correction method includes the following steps: obtaining the spectral irradiance at the measured position in the target environment; correcting the obtained spectral irradiance according to the relationship between age and spectral irradiance to obtain the equivalent spectral irradiance; calculating the light environment parameters based on the equivalent spectral irradiance; wherein the light environment parameters include the equivalent illuminance corresponding to the age, the physiological equivalent illuminance, and the equivalent color temperature. The present invention optimizes the algorithm to obtain the light environment parameters for different age groups. Among them, the light environment parameters include the equivalent illuminance, the physiological equivalent illuminance, and the equivalent color temperature. Furthermore, based on these light environment parameters, the actual visual effects of the light environment on different age groups can be quantitatively evaluated.

Description

Technical Field

[0001] The present invention belongs to the technical field of optics, and particularly relates to a method and device for correcting light environment parameters based on age differences. Background Art

[0002] With the progress of the new generation of lighting source LED light source technology and lighting control technology, modern lighting has developed from only focusing on illuminating the environment to focusing on the impact of lighting on people's health. How to construct a healthy and comfortable light environment through lighting has become a hot issue of concern to the people's livelihood. Healthy lighting improves and enhances people's working, learning, and living conditions and quality through lighting, and promotes psychological and physiological health. Therefore, constructing a healthy lighting environment is the basis of healthy lighting.

[0003] Light environment parameters include illuminance and color temperature. The light environment parameters in the prior art are usually set for normal adults and do not consider age differences, which results in the light environment designed according to the existing light environment parameters usually not meeting the needs of people of different age groups. Summary of the Invention

[0004] To overcome at least to some extent the problems existing in the related art, the present invention provides a method and device for correcting light environment parameters based on age differences.

[0005] According to the first aspect of the embodiments of the present invention, the present invention provides a method for correcting light environment parameters based on age differences, which includes the following steps:

[0006] Obtain the spectral irradiance of the measured position in the target environment;

[0007] Correct the obtained spectral irradiance according to the relationship between age and spectral irradiance to obtain the equivalent spectral irradiance;

[0008] Calculate the light environment parameters based on the equivalent spectral irradiance; wherein, the light environment parameters include the equivalent illuminance, physiological equivalent illuminance, and equivalent color temperature corresponding to the age.

[0009] According to the method for correcting light environment parameters based on age differences provided by the present invention, correcting the obtained spectral irradiance according to the relationship between age and spectral irradiance to obtain the equivalent spectral irradiance specifically includes:

[0010] Calculate the spectral irradiance correction coefficient corresponding to the age according to the relationship between the human eye transmittance and age;

[0011] Calculate the equivalent spectral irradiance of the measured position in the target environment corresponding to different ages according to the spectral irradiance correction coefficient corresponding to the age and the spectral irradiance of the measured position in the target environment.

[0012] Further, the calculation of the spectral irradiance correction coefficient corresponding to the age specifically includes:

[0013] The spectral irradiance correction coefficient f(a, λ) corresponding to the age is:

[0014] f(a, λ) = τ(a, λ) / τ(30, λ);

[0015] In the formula, a represents the age, λ represents the wavelength, τ(a, λ) represents the transmittance of light with wavelength λ through the human eye of age a, and τ(30, λ) represents the transmittance of light with wavelength λ through the human eye of age 30.

[0016] τ(a, λ) = 10 -Dτ(a,λ) ;

[0017] In the formula, Dτ(a, λ) represents the calculated process quantity.

[0018] Even further, the equivalent spectral irradiance at the measured position in the target environment corresponding to different ages is:

[0019] E e '(a, λ) = E e (a, λ) · f(a, λ);

[0020] In the formula, E e (a, λ) represents the spectral irradiance at the measured position in the target environment, and E′ e (a, λ) represents the equivalent spectral irradiance at the measured position in the target environment corresponding to different ages.

[0021] According to the light environment parameter correction method based on age difference provided by the present invention, the obtained spectral irradiance is corrected according to the relationship between age and spectral irradiance to obtain the equivalent spectral irradiance, which specifically includes:

[0022] According to the spectral direct transmittance correction coefficient table corresponding to the age, the spectral irradiance correction coefficient corresponding to the age is obtained by using the linear interpolation method;

[0023] According to the spectral irradiance correction coefficient corresponding to the age and the spectral irradiance at the measured position in the target environment, the equivalent spectral irradiance at the measured position in the target environment corresponding to different ages is calculated.

[0024] Further, the obtaining of the spectral irradiance correction coefficient corresponding to the age by using the linear interpolation method according to the spectral direct transmittance correction coefficient table corresponding to the age specifically includes:

[0025]

[0026] In the formula, f(a, λ) represents the spectral irradiance correction coefficient corresponding to the age, a 1and a 2 respectively represent two age values closest to age a in the spectral direct transmittance correction coefficient table corresponding to the respective ages, f(a 1 , λ) represents the spectral irradiance correction coefficient for age a 1 , and f(a 2 , λ) represents the spectral irradiance correction coefficient for age a 2 .

[0027] According to the light environment parameter correction method based on age difference provided by the present invention, the light environment parameters calculated according to the equivalent spectral irradiance specifically include:

[0028] According to the spectral luminous efficiency V(λ) and the equivalent spectral irradiance E′ e (a, λ) at the measured position in the target environment corresponding to different ages, calculate the equivalent illuminance E(a) corresponding to the respective ages:

[0029]

[0030] In the formula, K m represents the maximum value of the spectral luminous efficacy of radiation, Δλ represents the spectral wavelength interval of the test, λ min represents the minimum wavelength of the test, and λ max represents the maximum wavelength of the test;

[0031] According to the equivalent spectral irradiance E′ e (a, λ) at the measured position in the target environment corresponding to different ages, the melanopsin spectral efficiency S mel (λ) and the spectral radiant efficacy of ipRGC cells relative to the D65 standard light source calculate the physiological equivalent illuminance corresponding to the respective ages

[0032]

[0033] In the formula, E mel (a) represents the physiological equivalent irradiance:

[0034]

[0035] In the formula, the melanopsin spectral efficiency S mel (λ) is obtained by looking up a table, and the table looked up is a corresponding relationship table between wavelength and melanopsin spectral efficiency;

[0036] Taking the equivalent spectral irradiance E′ e (a, λ) at the measured position in the target environment corresponding to different ages as the spectral power distribution of the measured light source, calculate the corresponding correlated color temperature of the light source, and use the corresponding correlated color temperature of the light source as the equivalent color temperature T cp(a).

[0037] Further, taking the equivalent spectral irradiance at the measured position in the target environment corresponding to different ages as the spectral power distribution of the measured light source, calculating the corresponding correlated color temperature of the light source specifically includes:

[0038] Calculating the tristimulus values of the light source;

[0039] Calculating the chromaticity coordinates u and v, and x and y according to the tristimulus values of the light source;

[0040] Calculating the correlated color temperature T according to the chromaticity coordinates u and v, and x and y cp .

[0041] Still further, the calculating the correlated color temperature T according to the chromaticity coordinates u and v, and x and y cp , specifically includes:

[0042] T cp = T 2 -ΔT c2 ;

[0043] In the formula, T 2 and ΔT c2 both represent process quantities,

[0044] T 2 = T 1 -ΔT c1 ;

[0045]

[0046] In the formula, T 1 , ΔT c1 , k ij , i = 0, 1, 2, 3, 4, 5, 6, j = 0, 1, 2, 3, 4, 5, 6, c and D uv both represent process quantities, where the value of k ij is obtained by looking up a table, and the table looked up is a correlation coefficient table;

[0047]

[0048]

[0049] c = log(T 2 ),

[0050] D uv = L FP - L BB ;

[0051] In the formula, L FP and L BB both represent process quantities,

[0052]

[0053] L BB = k 06 a 6 + k 05 a 5 + k 04 a 4 + k 03 a 3 + k 02 a 2 + k 01 a + k 00 ,

[0054] wherein, δ represents a process variable,

[0055]

[0056] wherein, δ 1 represents a process variable, δ 1 = arctan((v - 0.24) / (u - 0.292)).

[0057] Furthermore, calculating the correlated color temperature T according to the chromaticity coordinates u and v and x and y cp , specifically includes:

[0058] The correlated color temperature obtained by using the McCamy approximation formula method is:

[0059] T cp = -437n 3 + 3601n 2 - 6861n + 5514.31;

[0060] wherein, n represents a process variable,

[0061]

[0062] wherein, x e and y e are both constants, x e = 0.3320, y e = 0.1858.

[0063] According to the second aspect of the embodiments of the present invention, the present invention further provides a light environment parameter correction device based on age difference, which includes an acquisition module, a correction module and a calculation module;

[0064] The acquisition module is configured to acquire the spectral irradiance of the measured position in the target environment;

[0065] The correction module is configured to correct the acquired spectral irradiance according to the relationship between age and spectral irradiance to obtain an equivalent spectral irradiance.

[0066] The calculation module is configured to calculate light environment parameters based on the equivalent spectral irradiance; wherein, the light environment parameters include an equivalent illuminance corresponding to the age, a physiological equivalent illuminance, and an equivalent color temperature.

[0067] According to the above specific embodiments of the present invention, there are at least the following beneficial effects: The method for correcting light environment parameters based on age differences provided by the present invention obtains the spectral irradiance at the measured position of the target environment; corrects the spectral irradiance according to the response differences of different age groups to the light environment; and calculates the equivalent light environment parameters for a specific age according to the calculation methods of different light environment parameters. The present invention optimizes the algorithm to obtain the light environment parameters (equivalent illuminance, physiological equivalent illuminance, and equivalent color temperature) for different age groups, and then can quantitatively evaluate the actual effects of the light environment on different age groups according to the light environment parameters.

[0068] It should be understood that the above general description and the following specific embodiments are only exemplary and explanatory, and they do not limit the scope of what the present invention intends to claim. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] The following attached drawings are part of the specification of the present invention, which show the embodiments of the present invention, and the attached drawings and the description of the specification are used together to explain the principles of the present invention.

[0070] Figure 1 It is a flowchart of a method for correcting light environment parameters based on age differences provided by a specific embodiment of the present invention.

[0071] Figure 2 It is a structural block diagram of a device for correcting light environment parameters based on age differences provided by a specific embodiment of the present invention. SPECIFIC EMBODIMENTS

[0072] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the spirit of the content disclosed by the present invention will be clearly described below with reference to the drawings and in detail. After any person skilled in the art in the technical field concerned understands the embodiments of the content of the present invention, the techniques taught by the content of the present invention can be changed and modified, and it does not deviate from the spirit and scope of the content of the present invention.

[0073] The illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but do not limit the present invention. Additionally, the same or similar reference numerals of elements / components used in the drawings and embodiments are used to represent the same or similar parts.

[0074] As for the "first", "second",... used in this article, they do not particularly refer to the meaning of order or sequence, nor are they used to limit the present invention. They are only used to distinguish elements or operations described with the same technical terms.

[0075] As for the "comprising", "including", "having", "containing", etc. used in this article, they are all open-ended terms, that is, they mean including but not limited to.

[0076] As for the "and / or" used in this article, it includes any or all combinations of the described things.

[0077] As for the "multiple" in this article, it includes "two" and "more than two"; as for the "multiple groups" in this article, it includes "two groups" and "more than two groups".

[0078] Certain terms used to describe the present invention will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in the description of the present invention.

[0079] As Figure 1 shown, the light environment parameter correction method based on age difference provided by the present invention includes the following steps:

[0080] S1. Obtain the spectral irradiance at the measured position in the target environment;

[0081] Among them, the spectral irradiance is a function of the photon wavelength (or energy), usually represented by F, and is the most commonly used value to characterize the light source. It gives the power density at a specific wavelength.

[0082] In this step, a spectroradiometer is used to obtain the spectral irradiance E e (a,λ) at the measured position in the target environment. A spectroradiometer is a device for spectral analysis of the light (radiation) emitted by substances.

[0083] S2. Correct the obtained spectral irradiance according to the relationship between age and spectral irradiance to obtain the equivalent spectral irradiance;

[0084] Among them, the spectral irradiance corresponding to different ages is different.

[0085] S3. Calculate the light environment parameters according to the equivalent spectral irradiance.

[0086] Among them, the light environment parameters include the equivalent illuminance corresponding to the age, the physiological equivalent illuminance, and the equivalent color temperature.

[0087] In the above step S2, the obtained spectral irradiance is corrected according to the relationship between age and spectral irradiance to obtain the equivalent spectral irradiance, which specifically includes:

[0088] S21. Calculate the spectral irradiance correction coefficient f(a,λ) corresponding to the age according to the relationship between the human eye transmittance and age;

[0089] The spectral irradiance correction coefficient f(a,λ) corresponding to the age is:

[0090] f(a,λ) = τ(a,λ) / τ(30,λ) (1)

[0091] In formula (1), a represents age, λ represents wavelength, τ(a,λ) represents the transmittance of light with wavelength λ through the human eye of age a, and τ(30,λ) represents the transmittance of light with wavelength λ through the human eye of age 30.

[0092] τ(a,λ) = 10 -Dτ(a,λ) (2)

[0093] In formula (2), Dτ(a,λ) represents the calculated process quantity, and the expression of Dτ(a,λ) is:

[0094]

[0095] S22. According to the spectral irradiance correction coefficient f(a,λ) corresponding to the age and the spectral irradiance E e (a,λ) at the measured position in the target environment, calculate the equivalent spectral irradiance E' e (a,λ) corresponding to different ages in the target environment;

[0096] E e '(a,λ) = E e (a,λ)·f(a,λ) (4)

[0097] In the above step S2, according to the relationship between age and spectral irradiance, the obtained spectral irradiance is corrected to obtain the equivalent spectral irradiance. The following steps can also be adopted:

[0098] S211. According to the spectral direct transmittance correction coefficient table corresponding to the age, use the linear interpolation method to obtain the spectral irradiance correction coefficient f(a,λ) corresponding to the age;

[0099] Among them, the formula for obtaining the spectral irradiance correction coefficient f(a,λ) corresponding to the age by the linear interpolation method is:

[0100]

[0101] In formula (5), a 1 and a 2 respectively represent the two age values closest to age a in the spectral direct transmittance correction coefficient table corresponding to the age, and f(a 1 ,λ) represents age a1 Spectral irradiance correction factor, f(a 2 , λ) represents the spectral irradiance correction factor for age a 2 .

[0102] S222. According to the spectral irradiance correction factor f(a, λ) corresponding to the age and the spectral irradiance E e (a, λ) at the measured position in the target environment, use Equation (4) to calculate the equivalent spectral irradiance E′ e (a, λ) at the measured position in the target environment corresponding to different ages.

[0103] For example, when the age is 35 years old and the wavelength of the spectrum is 350 nm, according to the correction factors 1 and 0.053 corresponding to the ages 30 years old and 40 years old, which are the closest to the age of 35 years old, given in the spectral direct transmittance correction factor table corresponding to the age, the spectral irradiance correction factor f(35, 350) for 35 years old is calculated by the linear interpolation method as follows:

[0104]

[0105] In the above step S3, the light environment parameters are calculated according to the equivalent spectral irradiance, specifically including:

[0106] S31. According to the spectral luminous efficiency V(λ) and the equivalent spectral irradiance E′ e (a, λ) at the measured position in the target environment corresponding to different ages, calculate the equivalent illuminance E(a):

[0107]

[0108] In Equation (6), K m represents the maximum value of the spectral luminous efficacy of radiation, and its value can be 683.002 lm / W, where lm / W represents lumens per watt, Δλ represents the spectral wavelength interval of the test, λ min represents the minimum wavelength of the test, and λ max represents the maximum wavelength of the test.

[0109] S32. According to the equivalent spectral irradiance E′ e (a, λ) at the measured position in the target environment corresponding to different ages, the melanopsin spectral efficiency S mel (λ) and the spectral radiation efficacy of ipRGC cells relative to the D65 standard light source calculate the physiological equivalent illuminance corresponding to the age

[0110]

[0111] In Equation (7), The value of can be 1.3262 mW / lm, where mW / lm represents milliwatt per lumen, E mel (a) represents the physiological equivalent irradiance:

[0112]

[0113] In Equation (8), the melanopsin spectral efficiency S mel (λ) is obtained by looking up a table, where the table is the corresponding relationship table between wavelength and melanopsin spectral efficiency.

[0114] Among them, ipRGC cells refer to intrinsically photosensitive retinal ganglion cells, which are cells corresponding to non-visual effects.

[0115] S33. Using the equivalent spectral irradiance E′ e (a, λ) of the measured position in the target environment corresponding to different ages as the spectral power distribution of the measured light source, calculate the corresponding correlated color temperature of the light source, and use it as the equivalent color temperature T cp (a).

[0116] S311. Calculate the tristimulus values of the light source:

[0117] Calculate the tristimulus values of the CIE 1931 XYZ colorimetric system when the size of the light source in the visual field satisfies 1° to 4°,

[0118]

[0119] In Equation (9), X 0 , Y 0 , Z 0 respectively represent the tristimulus values of the CIE 1931 XYZ colorimetric system, and s(λ) represents the spectral power distribution of the light source, that is, the equivalent spectral irradiance E′ e (a, λ); represents the CIE 1931 standard colorimetric observer color matching function, and k represents the first normalization coefficient,

[0120]

[0121] Calculate the tristimulus values of the CIE 1964 colorimetric system when the size of the light source in the visual field is greater than 4°,

[0122]

[0123] In Equation (11), X 10 , Y 10 , Z 10 respectively represent CIE 1964 X 10 Y 10 Z 10The tristimulus values of the chromaticity system, s(λ) represents the spectral power distribution of the light source, i.e., the equivalent spectral irradiance E′ e (a,λ); represents the CIE1964 standard chromaticity observer color matching function, k 10 represents the second normalization coefficient,

[0124]

[0125] S312. Calculate the chromaticity coordinates according to the tristimulus values of the light source;

[0126] Among them, the chromaticity coordinates u and v are calculated and determined according to Equation (13):

[0127]

[0128] In Equation (13), X, Y, and Z represent the tristimulus values calculated in step S311. When the size of the light source in the visual field satisfies 1° to 4°, the values of X, Y, and Z are X 0 , Y 0 , Z 0 ; when the size of the light source in the visual field is greater than 4°, the values of X, Y, and Z are X 10 , Y 10 , Z 10 .

[0129] The chromaticity coordinates x and y of the CIE 1931 XYZ chromaticity system are calculated and determined according to Equation (14):

[0130]

[0131] S313. Calculate the correlated color temperature T according to the chromaticity coordinates u and v and x and y cp ;

[0132] Among them, the correlated color temperature T can be calculated by the conversion formula method and the McCamy approximation formula method respectively cp .

[0133] The correlated color temperature T obtained by the conversion formula method cp is:

[0134] T cp = T 2 - ΔT c2 (15)

[0135] In Equation (15), T 2 and ΔT c2 both represent process quantities,

[0136] T 2 = T 1 - ΔTc1 (16)

[0137]

[0138] In equations (16) and (17), T 1 , ΔT c1 , k ij , i = 0, 1, 2, 3, 4, 5, 6, j = 0, 1, 2, 3, 4, 5, 6, c, and D uv all represent process variables. Among them, the value of k ij is obtained by querying Table 1.

[0139] Table 1 Correlation Coefficient k i,j Table

[0140]

[0141]

[0142]

[0143] c = log(T 2 ),

[0144] D uv = L FP - L BB (18)

[0145] In equation (18), L FP and L BB both represent process variables.

[0146]

[0147] L BB = k 06 δ 6 + k 05 δ 5 + k 04 δ 4 + k 03 δ 3 + k 02 δ 2 + k 01 δ + k 00 ,

[0148] In the above equation, δ represents a process variable.

[0149]

[0150] In equation (19), δ 1 represents a process variable, and δ 1= arctan((v - 0.24) / (u - 0.292)).

[0151] The correlated color temperature obtained by using the McCamy approximation formula method is as follows:

[0152] T cp = -437n 3 + 3601n 2 - 6861n + 5514.31 (20)

[0153] In Equation (20), n represents a process variable,

[0154]

[0155] In Equation (21), x e and y e are both constants, x e = 0.3320, y e = 0.1858.

[0156] The present invention obtains the light environment parameters (equivalent illuminance, physiological equivalent illuminance, and correlated color temperature) of the population based on age differences through algorithm optimization. The obtained light environment parameters can be used to quantitatively evaluate the actual visual effects of the light environment on different age groups of people, and can also be used as a design basis to design the light environment to meet the visual needs of the target population.

[0157] In an exemplary embodiment, as Figure 2 shown, based on the method for correcting light environment parameters based on age differences provided by the present invention, the present invention also provides a device for correcting light environment parameters based on age differences, which includes an acquisition module 201, a correction module 202, and a calculation module 203.

[0158] Among them, the acquisition module 201 is used to acquire the spectral irradiance of the measured position in the target environment;

[0159] The correction module 202 is used to correct the acquired spectral irradiance according to the relationship between age and spectral irradiance to obtain the equivalent spectral irradiance;

[0160] The calculation module 203 is used to calculate the light environment parameters according to the equivalent spectral irradiance; among them, the light environment parameters include the equivalent illuminance, physiological equivalent illuminance, and correlated color temperature corresponding to the age.

[0161] It should be noted that the device for correcting light environment parameters based on age differences provided in the above embodiment and the embodiment of the method for correcting light environment parameters based on age differences belong to the same concept. For the specific implementation process, please refer to the method embodiment and will not be elaborated here.

[0162] On the other hand, the present invention also provides a computer program product, which includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the method for correcting light environment parameters based on age differences provided by the above-mentioned various methods. The method includes:

[0163] Obtain the spectral irradiance at the measured position in the target environment;

[0164] Correct the obtained spectral irradiance according to the relationship between age and spectral irradiance to obtain the equivalent spectral irradiance;

[0165] Calculate the light environment parameters based on the equivalent spectral irradiance; wherein, the light environment parameters include the equivalent illuminance corresponding to the age, the physiological equivalent illuminance, and the equivalent color temperature.

[0166] On the other hand, the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it realizes the method for predicting wireless network traffic provided by the above-mentioned various methods. The method includes:

[0167] Obtain the spectral irradiance at the measured position in the target environment;

[0168] Correct the obtained spectral irradiance according to the relationship between age and spectral irradiance to obtain the equivalent spectral irradiance;

[0169] Calculate the light environment parameters based on the equivalent spectral irradiance; wherein, the light environment parameters include the equivalent illuminance corresponding to the age, the physiological equivalent illuminance, and the equivalent color temperature.

[0170] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative labor.

[0171] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on such an understanding, the essence of the above technical solution, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0172] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for correcting light environment parameters based on age differences, characterized in that: The following steps are involved: Obtain the spectral irradiance of the measured location in the target environment; According to the relationship between age and spectral irradiance, the acquired spectral irradiance is corrected to obtain the equivalent spectral irradiance, including: According to the spectral irradiance correction coefficient of the corresponding age and the spectral irradiance of the measured position in the target environment, the equivalent spectral irradiance of the measured position in the target environment corresponding to different ages is calculated; The light environment parameters are calculated based on the equivalent spectral irradiance; wherein the light environment parameters include the equivalent illuminance corresponding to the age, the physiological equivalent illuminance and the equivalent color temperature; The light environment parameters are calculated according to the equivalent spectral irradiance, specifically including: According to the spectral luminous efficiency V(λ) and the equivalent spectral irradiance E of the measured position in the target environment corresponding to different ages e ′(a,λ), calculate the equivalent illumination E(a) of the corresponding age: In the formula, K m Indicates the maximum value of the spectral luminous efficacy of radiation, Δλ indicates the spectral wavelength interval of the test, λ min Indicates the minimum wavelength of the test, λ max Indicates the maximum wavelength tested; Equivalent spectral irradiance E of the measured location in the target environment according to different ages e ′(a,λ), melanopsin spectral efficiency S mel Spectral radiant efficacy of (λ) and ipRGC cells relative to D65 standard light source Calculate the physiological equivalent illumination corresponding to age In the formula, E mel (a) represents physiological equivalent irradiance: Where, the spectral efficiency of melanopsin S mel (λ) is obtained by looking up a table, wherein the table looked up is a table of correspondence between wavelength and spectral efficiency of melanopsin; The equivalent spectral irradiance E of the measured position in the target environment corresponding to different ages e ′(a,λ) is used as the spectral power distribution of the measured light source, and the corresponding light source correlated color temperature is calculated, and the corresponding light source correlated color temperature is used as the equivalent color temperature T of the corresponding age. cp (a).

2. The method for correcting light environment parameters based on age differences according to claim 1, characterized in that: According to the relationship between age and spectral irradiance, the acquired spectral irradiance is corrected to obtain the equivalent spectral irradiance, including: According to the relationship between human eye transmittance and age, the spectral irradiance correction coefficient corresponding to the age is calculated.

3. The method for correcting light environment parameters based on age differences according to claim 2, characterized in that: The calculation obtains the spectral irradiance correction coefficient corresponding to the age, specifically including: The spectral irradiance correction coefficient f(a,λ) corresponding to age is: f(a,λ)=τ(a,λ) / τ(30,λ); Where a represents age, λ represents wavelength, τ(a,λ) represents the transmittance of light with wavelength λ through the eyes of a person of age a, and τ(30,λ) represents the transmittance of light with wavelength λ through the eyes of a person of age 30; τ(a,λ)=10 -Dτ(a,λ) ; Where Dτ(a,λ) represents the calculation process quantity.

4. The method for correcting light environment parameters based on age differences according to claim 3, characterized in that: The equivalent spectral irradiance of the measured position in the target environment corresponding to different ages is: E e '(a,λ)=E e (a,λ)·f(a,λ); In the formula, E e (a,λ) represents the spectral irradiance of the measured position in the target environment, E e ′(a,λ) represents the equivalent spectral irradiance of the measured position in the target environment corresponding to different ages.

5. The method for correcting light environment parameters based on age differences according to claim 1, characterized in that: According to the relationship between age and spectral irradiance, the acquired spectral irradiance is corrected to obtain the equivalent spectral irradiance, including: According to the spectral direct transmittance correction coefficient table corresponding to the age, the spectral irradiance correction coefficient corresponding to the age is obtained by linear interpolation method.

6. The method for correcting light environment parameters based on age differences according to claim 5, characterized in that: The method of obtaining the spectral irradiance correction coefficient corresponding to the age by linear interpolation based on the spectral direct transmittance correction coefficient table corresponding to the age specifically includes: Wherein, f(a,λ) represents the spectral irradiance correction coefficient of the corresponding age, a1 and a2 represent the two age values ​​closest to age a in the spectral direct transmittance correction coefficient table of the corresponding age, f(a1,λ) represents the spectral irradiance correction coefficient of age a1, and f(a2,λ) represents the spectral irradiance correction coefficient of age a2.

7. The method for correcting light environment parameters based on age differences according to claim 1, characterized in that: The method of using the equivalent spectral irradiance of the measured position in the target environment corresponding to different ages as the spectral power distribution of the measured light source and calculating the corresponding light source correlated color temperature specifically includes: Calculate the tristimulus values ​​of the light source; Calculate the chromaticity coordinates u and v as well as x and y based on the tristimulus values ​​of the light source; Calculate the correlated color temperature T based on the chromaticity coordinates u and v as well as x and y cp .

8. The method for correcting light environment parameters based on age differences according to claim 7, characterized in that: The correlated color temperature T is calculated according to the chromaticity coordinates u and v as well as x and y. cp , specifically including: T cp =T2-ΔT c2 ; In the formula, T2 and ΔT c2 Both represent process quantities. T2=T1-ΔT c1 ; In the formula, T1, ΔT c1 , k ij ,i=0,1,2,3,4,5,6,j=0,1,2,3,4,5,6,c and D uv Both represent process quantities, where k ij The value of is obtained by querying the correlation coefficient table; c=log(T2), D uv =L FP -L BB ; Where, L FP and L BB Both represent process quantities. L BB =k 06 d 6 +k 05 d 5 +k 04 d 4 +k 03 d 3 +k 02 d 2 +k 01 d+k 00 , In the formula, δ represents the process quantity, In the formula, δ1 represents the process quantity, δ1=arctan((v-0.24) / (u-0.292)).

9. The method for correcting light environment parameters based on age differences according to claim 7, characterized in that: The correlated color temperature T is calculated according to the chromaticity coordinates u and v as well as x and y. cp , specifically including: The correlated color temperature obtained using the McCamy approximation formula is: T cp =-437n 3 +3601n 2 -6861n+5514.31; In the formula, n represents the process quantity, In the formula, x e and e are constants, x e =0.3320,y e =0.1858.

10. A light environment parameter correction device based on age difference, characterized in that: It includes an acquisition module, a correction module and a calculation module; The acquisition module is used to acquire the spectral irradiance of the measured position in the target environment; The correction module is used to correct the acquired spectral irradiance according to the relationship between age and spectral irradiance to obtain equivalent spectral irradiance, specifically including: According to the spectral irradiance correction coefficient of the corresponding age and the spectral irradiance of the measured position in the target environment, the equivalent spectral irradiance of the measured position in the target environment corresponding to different ages is calculated; The calculation module is used to calculate the light environment parameters according to the equivalent spectral irradiance; wherein the light environment parameters include the equivalent illuminance corresponding to the age, the physiological equivalent illuminance and the equivalent color temperature; The light environment parameters are calculated according to the equivalent spectral irradiance, specifically including: According to the spectral luminous efficiency V(λ) and the equivalent spectral irradiance E of the measured position in the target environment corresponding to different ages e ′(a,λ), calculate the equivalent illumination E(a) of the corresponding age: In the formula, K m Indicates the maximum value of the spectral luminous efficacy of radiation, Δλ indicates the spectral wavelength interval of the test, λ min Indicates the minimum wavelength of the test, λ max Indicates the maximum wavelength tested; Equivalent spectral irradiance E of the measured location in the target environment according to different ages e ′(a,λ), melanopsin spectral efficiency S mel Spectral radiant efficacy of (λ) and ipRGC cells relative to D65 standard light source Calculate the physiological equivalent illumination corresponding to age In the formula, E mel (a) represents physiological equivalent irradiance: Where, the spectral efficiency of melanopsin S mel (λ) is obtained by looking up a table, wherein the table looked up is a table of correspondence between wavelength and spectral efficiency of melanopsin; The equivalent spectral irradiance E of the measured position in the target environment corresponding to different ages e ′(a,λ) is used as the spectral power distribution of the measured light source, and the corresponding light source correlated color temperature is calculated, and the corresponding light source correlated color temperature is used as the equivalent color temperature T of the corresponding age. cp (a).

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