A method for calculating the chromaticity coordinates of LED spectrum penetration into seawater

Abstract

The present invention provides a method for calculating the chromaticity coordinates of the penetration of LED spectrum to seawater, comprising the following steps: step 1, obtaining the attenuation coefficient function curve K(λ) of seawater to wavelength; step 2, obtaining the spectrum of LED and calculating the light power Φ of the LED e ; Step three, calculate the LED radiation power Z(λ) after the seawater penetration depth; Step four, calculate the seawater spectrum utilization k; Step five, calculate the seawater penetration spectrum chromaticity coordinates; It is easy to distinguish the quality of LED light sources theoretically, providing a low-cost and high-efficiency detection method for the quality inspection of LED fish attracting lights.

Description

Technical Field

[0001] The invention relates to the technical field of LED light sources, and in particular to a method for calculating the chromaticity coordinates of the penetration of an LED spectrum into seawater. Background Art

[0002] LED fish attracting lights are a type of light used to assist fishermen in fishing, which can solve the problem of catching more fish. In the prior art, there is a lack of corresponding detection means for the quality of LED light sources, so it is impossible to measure the penetration of the emission spectrum of the LED light source into seawater. Therefore, a method for calculating the chromaticity coordinates of the penetration of the LED spectrum into seawater is urgently needed to detect the quality of LED fish attracting lights. Summary of the invention

[0003] Based on this, the purpose of the present invention is to provide a method for calculating the chromaticity coordinates of the LED spectrum's penetration into seawater, which can easily distinguish the quality of LED light sources theoretically, and provide a low-cost and high-efficiency detection method for the quality inspection of LED fish attracting lights.

[0004] The present invention provides a method for calculating the chromaticity coordinates of the penetration power of an LED spectrum into seawater, comprising the following steps:

[0005] Step 1, obtaining the attenuation coefficient function curve K(λ) of seawater to wavelength;

[0006] Step 2: Obtain the spectrum of the LED and calculate the light power Φ of the LED e ; The calculation formula is:

[0007] Φ e =∫x(λ)dλ

[0008] Where x(λ) is the emission spectrum of the LED, and d(λ) is the wavelength interval;

[0009] Step 3: Calculate the LED radiation power Z(λ) after the seawater penetrates the depth. The calculation formula is:

[0010] z(λ)=exp(-K(λ)*m)*x(λ)

[0011] Among them, K(λ) is the attenuation coefficient function curve of seawater to wavelength, and m is a certain depth;

[0012] Calculate the absorbed radiation power Φ of the LED emission spectrum at a certain depth in seawater v , the calculation formula is:

[0013] Φ v =∫z(λ)dλ

[0014] Step 4: Calculate the seawater spectrum utilization k, the calculation formula is:

[0015]

[0016] Step 5: Calculate the chromaticity coordinates of the seawater penetration spectrum using the following formula:

[0017]

[0018] Among them, X k , Y k , Z k It is the tristimulus value of CIE1931 standard colorimetry system;

[0019] It is the CIE1931 standard chromaticity observer tristimulus value;

[0020] The wavelength interval dλ (Δλ) is 1 nm;

[0021] The chromaticity coordinates (x k ,y k ), the specific calculation formula is as follows:

[0022]

[0023] The above x k =ccx,y k =ccy.

[0024] As a preferred embodiment, in step 1, several groups of absorbance data are collected at a wavelength interval of 1 nm.

[0025] As a preferred implementation, in step 2, several groups of emission values ​​are collected at intervals of 1 nm in wavelength.

[0026] As a preferred implementation, in step 2, dλ=1.

[0027] As a preferred implementation, in step three, dλ=1.

[0028] The beneficial effects of the present invention are as follows: by modeling based on mathematical thinking and utilizing the calculation method of the present invention, it is possible to easily distinguish the quality of LED light sources theoretically, thereby providing a low-cost and high-efficiency detection method for the quality inspection of LED fish attracting lamps. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural block diagram of the present invention;

[0030] Figure 2 is the spectral attenuation curve of seawater to wavelength;

[0031] Figure 3 is the LED emission spectrum;

[0032] Figure 4 is the emission spectrum of LED at a depth of 10 meters in seawater;

[0033] Figure 5 This is the seawater spectrum penetration analysis table of 6500K 1LED spectrum at a seawater depth of 10 meters;

[0034] Figure 6 This is the emission spectrum of the LED at a depth of 60 meters in seawater;

[0035] Figure 7 This is the seawater spectrum penetration analysis table of 6500K1 LED spectrum at a depth of 60 meters;

[0036] Figure 8 This is the emission spectrum of the LED at a depth of 80 meters in seawater;

[0037] Fig. 9 This is the seawater spectrum penetration analysis table of 6500K1 LED spectrum at a depth of 80 meters;

[0038] Fig.10 This is the emission spectrum of the LED at a depth of 120 meters in seawater;

[0039] Fig.11 This is the seawater spectrum penetration analysis table of 6500K1 LED spectrum at a seawater depth of 120 meters. DETAILED DESCRIPTION

[0040] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with specific implementation methods and drawings.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Please refer to Figure 1-11 As shown, a method for calculating the chromaticity coordinates of the penetration of LED spectrum into seawater includes the following steps:

[0043] Step 1, obtaining the attenuation coefficient function curve K(λ) of seawater to wavelength; collecting several groups of absorbance data at a wavelength interval of 1 nm;

[0044] Step 2: Obtain the spectrum of the LED and calculate the light power Φ of the LEDe ; The calculation formula is:

[0045] Φ e =∫x(λ)dλ

[0046] Where x(λ) is the emission spectrum of the LED, d(λ) is the wavelength interval, dλ=1, and several sets of emission values ​​are collected at a wavelength interval of 1nm;

[0047] Step 3: Calculate the LED radiation power Z(λ) after the seawater penetrates the depth. The calculation formula is:

[0048] z(λ)=exp(-K(λ)*m)*x(λ)

[0049] Among them, K(λ) is the attenuation coefficient function curve of seawater to wavelength, and m is a certain depth;

[0050] Calculate the absorbed radiation power Φ of the LED emission spectrum at a certain depth in seawater v , dλ=1, the calculation formula is:

[0051] Φ v =∫z(λ)dλ

[0052] Step 4: Calculate the seawater spectrum utilization k, the calculation formula is:

[0053]

[0054] Step 5: Calculate the chromaticity coordinates of the seawater penetration spectrum using the following formula:

[0055]

[0056] Among them, X k , Y k , Z k It is the tristimulus value of CIE1931 standard colorimetry system;

[0057] It is the CIE1931 standard chromaticity observer tristimulus value;

[0058] The wavelength interval dλ (Δλ) is 1 nm;

[0059] The chromaticity coordinates (x k ,y k ), the specific calculation formula is as follows:

[0060]

[0061] The above x k =ccx,y k =ccy.

[0062] The following is the attenuation coefficient function curve K(λ) of seawater to wavelength. Please refer to the corresponding curve graph Figure 2 The blank spaces in the table below represent data that cannot be collected by current technology.

[0063]

[0064]

[0065]

[0066]

[0067] The following is a table of 6500K 1LED seawater penetration calculated by the calculation method of the present invention. The seawater depths are 10M, 20M, 30M, 40M, 50M, 60M, 70M, 80M, 90M, 100M, 110M, and 120M, respectively. In order to better reflect the effect of the calculation method of the present invention, the seawater depths of 10m, 60m, 80m, and 120m are used as examples. For details, please refer to Figure 5-11 .

[0068]

[0069] The invention is based on mathematical thinking to build a model, and uses a method to calculate the chromaticity coordinates of the LED spectrum's penetration into seawater, so that it is easy to theoretically distinguish between good and bad LED light sources, providing a low-cost and high-efficiency detection method for the quality inspection of LED fish attracting lights.

[0070] The above-mentioned embodiments only express various implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A method for calculating the chromaticity coordinates of the penetration of LED spectrum into seawater, characterized in that: The following steps are involved: Step 1, obtaining the attenuation coefficient function curve K(λ) of seawater to wavelength; Step 2: Obtain the spectrum of the LED and calculate the light power Φ of the LED e ; The calculation formula is: F e =∫x(λ)dλ Where x(λ) is the emission spectrum of the LED, and d(λ) is the wavelength interval; Step 3: Calculate the LED radiation power Z(λ) after the seawater penetrates the depth. The calculation formula is: z(λ)=exp(-K(λ)*m)*x(λ) Among them, K(λ) is the attenuation coefficient function curve of seawater to wavelength, and m is a certain depth; Calculate the absorbed radiation power Φ of the LED emission spectrum at a certain depth in seawater v , the calculation formula is: F v =∫z(λ)dλ Step 4: Calculate the seawater spectrum utilization k, the calculation formula is: Step 5: Calculate the chromaticity coordinates of the seawater penetration spectrum using the following formula: Among them, X k , Y k , Z k It is the tristimulus value of CIE1931 standard colorimetry system; It is the CIE1931 standard chromaticity observer tristimulus value; The wavelength interval dλ (Δλ) is 1 nm; The chromaticity coordinates of the light source to be measured (x k ,y k ), the specific calculation formula is as follows:

2. The method for calculating the chromaticity coordinates of the LED spectrum penetration into seawater according to claim 1, characterized in that: In the step 1, several groups of absorbance data are collected at a wavelength interval of 1 nm.

3. The method for calculating the chromaticity coordinates of the LED spectrum penetration into seawater according to claim 1, characterized in that: In the step 2, several groups of emission values ​​are collected at a wavelength interval of 1 nm.

4. The method for calculating the chromaticity coordinates of the LED spectrum penetration into seawater according to claim 1, characterized in that: In the step 2, dλ=1.

5. The method for calculating the chromaticity coordinates of the LED spectrum penetration into seawater according to claim 1, characterized in that: In the step 3, dλ=1.

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