Method for manufacturing equal-energy white light source

Abstract

The invention relates to a method for manufacturing an isoenergetic white light source, which comprises the following steps of: taking a plurality of fluorescent powders with different wavelengths in a visible wavelength range of 380nm to 780nm, respectively and independently detecting each fluorescent powder by using a spectrograph measurement system to obtain fluorescent powder characteristic information of each fluorescent powder, and carrying out comprehensive calculation to generate comprehensive energy information; the method comprises the following steps of: adding fluorescent powder into a spectrogram, mixing the fluorescent powder, exciting by using an ultraviolet light chip, emitting a light source by the excited fluorescent powder, detecting the light source by a spectrogram measuring system, displaying the light source on the spectrogram, and if the energy intensities of various wavelengths displayed in the spectrogram are different, determining that the fluorescent powder is the same. If yes, the energy intensity of each wavelength of the visible light in the interval range from 380 nm to 780 nm is readjusted, and if the energy intensity of each wavelength is the same, spectrum reconstruction is completed to achieve full-spectrum equal-energy white light.

Description

Technical Field

[0001] The invention relates to a method for manufacturing a light source of isoenergetic white light, which redefines the measurement standard of light color by artificial isoenergetic white light. Background Art

[0002] In the past, artificial light sources used combustion or discharge to excite gases, so it was impossible to accurately grasp the intensity of the spectrum in each band, resulting in an inability to control the composition of the spectrum. As a result, even the CIE International Commission on Illumination believed that equal-energy white light could not be produced.

[0003] Isoenergetic white light does not exist in nature, including sunlight, which can only produce a waveform similar to isoenergetic white light between 10:30 and 11:30 in the morning, and cannot be a continuous and constant light source.

[0004] Sunlight is a continuous spectrum, but due to the influence of suspended particles and water refraction in the air, the intensity of each wavelength changes all the time, so it cannot be a constant standard light source.

[0005] In the past, equal-energy white light was recognized as a standard light source in theory, but it could not be manufactured. However, the rapid development of semiconductor lighting technology in the past two decades has reached a mature stage. Therefore, how to manufacture a standard light source in theory based on existing semiconductor lighting technology to become a stable continuous light source, and then a truly color-free standard light source, is the direction that the applicant of the present invention and related manufacturers engaged in this industry want to study and improve. Summary of the invention

[0006] The main purpose of the present invention is to provide a measurement benchmark for redefining light color by artificial iso-energy white light. In other words, by using this benchmark light source, the absolute color code of color can be redefined to become a more precise color code definition in theory, and the standard of optical lighting source quality can also be redefined.

[0007] The manufacturing steps of the present invention to achieve the above-mentioned main purpose are as follows: first, several phosphors of different wavelengths are taken within the range of visible light wavelengths from 380nm to 780nm, and then the spectrometer measurement system is used to independently detect each phosphor to obtain the phosphor characteristic information of each phosphor, and then the phosphor characteristic information obtained from each phosphor is comprehensively calculated to generate comprehensive energy information, and whether the dosage of the phosphor needs to be increased or decreased is determined by the comprehensive energy information. When the dosage of the phosphor is prepared, the phosphors are mixed, and then the ultraviolet light chip is used to excite the mixed phosphors to emit light, and then the spectrometer measurement system is used to measure the light source to display the energy on the spectrum. After that, if the energy intensity of each wavelength displayed in the spectrum is the same, it means that the full spectrum of equal energy white light is completed. If there are wavelengths with different energy intensities in the spectrum, the energy intensity of each wavelength in the range of visible light wavelengths from 380nm to 780nm must be readjusted, and the above-mentioned actions are repeated.

[0008] With this standard light source of equal-energy white light, the absolute color code of color can be redefined, becoming a more precise color code definition in theory, and it can also redefine the standard of lighting source quality in optics.

[0009] By using the above technology, the problem that sunlight exists in common technology as a continuous spectrum, but due to the influence of suspended particles and water refraction in the air, the intensity of each wavelength changes at any time, so it cannot become a constant standard light source, that is, the problem that equal energy white light cannot be produced can be overcome, thereby achieving the above advantages of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The figure is a flowchart of the steps of a preferred embodiment of the present invention.

[0011] Figure 2 This is a spectrum diagram of detecting a single phosphor according to a preferred embodiment of the present invention.

[0012] Figure 3 This is a spectrum diagram for demonstrating a preferred embodiment of the present invention.

[0013] Figure 4 This is a spectrum diagram of the initial phosphor after mixing according to a preferred embodiment of the present invention.

[0014] Figure 5 This is an isoenergetic white light spectrum diagram of a preferred embodiment of the present invention.

[0015] Reference numerals:

[0016] Trough 1

[0017] Main peak···2

[0018] Overlap ··3 DETAILED DESCRIPTION

[0019] See also Figures 1 to 5 As shown, it is a flow chart of the steps of a preferred embodiment of the present invention. It can be clearly seen from the figure that the steps of the present invention include in sequence a. taking phosphor; b. independently detecting phosphor; c. obtaining phosphor characteristic information and calculating; d. mixing phosphor; e. exciting phosphor; f. light source detection; g. spectrum display; h. re-adjusting wavelength energy intensity; i. completing full spectrum equal energy white light.

[0020] The following are detailed descriptions of each of the above steps:

[0021] a. Take phosphors: take several phosphors with different wavelengths in the range of visible light wavelength from 380nm to 780nm;

[0022] b. Independently test the phosphors: Use a spectrometer measurement system to independently test each of the phosphors to obtain the phosphor characteristic information of each of the phosphors. The phosphor characteristic information includes half-wave width, main peak value 2, and energy intensity, such as Figure 2 As shown, taking the spectrum graph measured by one of the phosphors as an example, the spectrum graph can show the half-wave width, main peak value 2, and energy intensity of the phosphor;

[0023] c. Obtaining and calculating the phosphor characteristic information: The phosphor characteristic information obtained from each of the phosphors is comprehensively calculated, such as half-wave width, main peak value 2, energy intensity, half-wave width overlap, and long- and short-wavelength absorption energy information, to generate comprehensive energy information, so as to determine whether to increase or decrease the dosage of the phosphor by using the comprehensive energy information. This can be done as follows: Figure 3 As shown, taking the synthesis of the spectrum of multiple phosphors as an example, it can be seen that in the spectrum, the shorter the wavelength of the phosphor, the narrower the half-wave width, and the longer the wavelength of the phosphor, the wider the half-wave width (i.e. the above-mentioned half-wave width information), and the half-wave widths of the phosphors adjacent to each other in each wavelength will have an overlapping part 3 (i.e. the above-mentioned half-wave width overlap), and the wavelength energy intensity of the overlapping part 3 will naturally increase upwards, and because the phosphor with a longer wavelength will absorb the energy of the phosphor with a shorter wavelength, the energy main peak 2 of the shorter wavelength phosphor will be absorbed by the longer wavelength phosphor, forming a main peak 2 with a lower energy, thereby, after comprehensive judgment and calculation of the above-mentioned various states, comprehensive energy information can be obtained;

[0024] d. Mixing phosphor powders: mixing the phosphor powders;

[0025] e. Exciting phosphors: taking an ultraviolet light chip, and exciting each of the mixed phosphors with ultraviolet light energy generated by energizing the ultraviolet light chip to excite the light source;

[0026] f. Light source detection: The light source is measured by the spectrometer measurement system to display the energy on the spectrum graph;

[0027] g. Spectrum display: according to the spectrum, if the energy intensity of each wavelength displayed in the spectrum is the same, then go to step i; if there are different energy intensities in the spectrum, then go to step h;

[0028] h. Re-adjust the wavelength energy intensity: for the wavelength parts with different energy intensities, adjust the wavelength energy intensity of the visible light wavelength range of 380nm to 780nm, and return to step b. The so-called adjustment of the wavelength energy intensity of each wavelength in the visible light wavelength range of 380nm to 780nm can be done in the following ways:

[0029] First, increase the dose of phosphors with lower energy, such as Figure 4 As shown, increasing the phosphor dosage corresponding to trough 1 can improve the energy intensity of this wavelength;

[0030] Second, reduce the dose of phosphors with higher energy, such as Figure 4 As shown, the phosphor dosage with too high energy main peak 2 is reduced, so that the energy intensity of this wavelength can be reduced;

[0031] Third, increase or decrease the phosphor dosage of the main peak 2 on both sides of the trough 1, so that the energy intensity of the trough 1 can be increased or decreased;

[0032] Fourth, in response to the physical phenomenon that the phosphor with a longer wavelength absorbs the energy of the phosphor with a shorter wavelength, and under the condition of the half-wavelength overlap 3, the dosage of the phosphor with a shorter wavelength is increased or decreased, so that the energy of the phosphor with a longer wavelength is changed to increase or decrease. The first to fourth methods mentioned above are all methods of adjusting the phosphor dosage to change the energy intensity of the wavelength;

[0033] Fifth, for the bands with lower energy, use the light-emitting chip that can emit the bands to directly supplement the bands with lower energy intensity, so as to improve the energy intensity of the bands with lower intensity;

[0034] i. Complete full-spectrum isoenergetic white light: Use spectrum reconstruction method to complete the purpose of full-spectrum isoenergetic white light with continuous spectrum.

[0035] Therefore, the manufacturing method of the isoenergetic white light source of the present invention can improve the commonly used technical key points:

[0036] After measuring the spectrum of the phosphor using the phosphor measurement system, the weight percentage of the phosphor with insufficient or excessive energy intensity is adjusted through spectrum reconstruction. This breaks through the original concept of the International Commission on Illumination (CIE) that equal-energy white light cannot be produced, and produces equal-energy white light that can accurately define the color code of each color, rewriting the existing optical regulations that can only use approximate standards.

[0037] However, although various embodiments of the present invention have been shown and illustrated herein, such embodiments are provided only by way of example, and any operating theories or beneficial effects provided herein are only auxiliary contents of the present invention; such theories and explanations do not bind or limit the scope of the patent application regarding tissue remodeling achieved by practicing the present invention. Without departing from the present invention, many changes, modifications or alternatives conceived using the embodiments of the present invention all fall within the scope of protection of the present invention. The scope of the present invention, the methods and structures within the scope of the present invention, including equivalent forms, achieve the purpose of isoenergetic white light by spectrum reconstruction, all fall within the scope of protection of this case, and are not limited to adjusting the wavelength energy intensity of visible light in the range of 380nm to 780nm, adjusting the phosphor dosage or using a light-emitting chip to increase the phosphor energy intensity, etc., all fall within the scope of protection of the present invention.

Claims

1. A method for manufacturing a light source of equal energy white light, characterized in that: The main steps include: a. Take several phosphors with different wavelengths in the visible light wavelength range of 380nm to 780nm; b. using a spectrometer measurement system to independently test each of the phosphors to obtain phosphor characteristic information of each of the phosphors; c. Comprehensively calculating the phosphor characteristic information obtained from each of the phosphors to generate comprehensive energy information, and determining whether to increase or decrease the dosage of the phosphors based on the comprehensive energy information; d. mixing the phosphors; e. Take an ultraviolet light chip, and excite the mixed phosphors using the energy generated by the ultraviolet light chip after being powered on, so as to excite the light source; f. measuring the light source via the spectrometer measurement system to display energy on a spectrum diagram; g. According to the spectrum, if the energy intensities of the wavelengths displayed in the spectrum are the same, then proceed to step i; if there are different energy intensities in the spectrum, then proceed to step h; h. For the wavelength parts with different energy intensities, adjust the wavelength energy intensity of the visible light wavelength range from 380nm to 780nm, and return to step b; and i. Use spectrum reconstruction method to achieve the purpose of full spectrum equal energy white light.

2. The method for manufacturing a light source of isoenergetic white light according to claim 1, characterized in that: The phosphor characteristic information includes half-wave width, main peak value, and energy intensity.

3. The method for manufacturing a light source of isoenergetic white light according to claim 1, characterized in that: The conditions for the comprehensive calculation include half-wave width, main peak value, energy intensity, half-wave width overlap, and long- and short-wavelength absorption energy information.

4. The method for manufacturing a light source of isoenergetic white light according to claim 1, characterized in that: The energy generated by the ultraviolet light chip after being powered on is ultraviolet light.

5. The method for manufacturing a light source of isoenergetic white light according to claim 1, characterized in that: The full spectrum of isoenergetic white light is a continuous spectrum.

6. The method for manufacturing a light source of isoenergetic white light according to claim 1, characterized in that: The step h adjusts the wavelength energy intensity in the range of 380nm to 780nm of the visible light wavelength, and changes the wavelength energy intensity to adjust the phosphor dosage.

7. The method for manufacturing a light source of isoenergetic white light according to claim 1, characterized in that: The step h adjusts the wavelength energy intensity in the range of 380nm to 780nm of visible light wavelength, so as to directly supplement the wavelength with low intensity by using the light-emitting chip that can emit light in this wavelength.

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