Daily-imitated spectrum synthesis method and device

Abstract

The invention provides a day-like spectrum synthesis method and device, and relates to the field of spectrum imitation, and the method comprises the steps: determining an envelope shape through a D65 natural spectrum curve; carving the enveloping shape on a solid plate in a hollowed-out manner to obtain a geometric template; the mixed light is decomposed into monochromatic light which is sequentially arranged according to the wavelength, and monochromatic light rainbow bands are obtained; enabling the monochromatic light rainbow band to pass through the hollow area of the geometric template to obtain a second monochromatic light rainbow band; and carrying out light mixing on the second monochromatic light rainbow band to obtain the finally synthesized imitated sunlight. The invention provides a day-like spectrum synthesis method, which can realize accurate matching of an artificial light source spectrum and a sunlight spectrum.

Description

Technical Field

[0001] This application relates to the field of spectral simulation, and particularly to a method and device for synthesizing a simulated sunlight spectrum. Background Art

[0002] A simulated sunlight spectrum refers to simulating the spectrum of an artificial light source as that of natural light to achieve the purpose of healthy lighting. Currently, there are mainly three methods for synthesizing a simulated sunlight spectrum: 1) directly using a xenon lamp; 2) using a light source + color filter; 3) using multi-channel LED synthesis.

[0003] Chinese Patent CN201810939992.2 relates to a simulated sunlight spectrum LED light source. Through multiple LED light source devices covering most of the visible and invisible light in the sunlight spectrum, and cooperating with phosphor to make it continuous, a light source effect similar to the sunlight spectrum is achieved. Chinese Patent CN201810127271.1 relates to a multi-color LED mixed light illumination method and system, which adopts a color mixing light-emitting mechanism and precisely adjusts the light-emitting spectrum of the light source with a digital circuit.

[0004] The method for synthesizing a simulated sunlight spectrum by using the multi-channel LED method includes: taking 21 different wavelength LED light sources distributed in the visible light band, mixing them in a certain proportion, and finally there are high and low peaks and valleys in the spectrum of the mixed light. There are always differences between the spectrum of the mixed light and the D65 natural light spectrum.

[0005] Due to the large differences between the spectrum of the light source itself and the natural light spectrum, the above methods cannot achieve precise synthesis of the simulated sunlight spectrum. Summary of the Invention

[0006] The purpose of the present invention is to provide a method and device for synthesizing a simulated sunlight spectrum to solve the problem that the existing methods for synthesizing a simulated sunlight spectrum cannot precisely synthesize the simulated sunlight spectrum under the condition of relatively low equipment cost.

[0007] The above object of this application is achieved through the following technical solutions:

[0008] S1: Determine the envelope shape through the D65 natural spectrum curve;

[0009] S2: Hollow out and engrave the envelope shape on a solid plate to obtain a geometric template;

[0010] S3: Decompose the mixed light into monochromatic lights arranged in sequence according to wavelengths to obtain a monochromatic light rainbow band;

[0011] S4: Let the monochromatic light rainbow band pass through the hollow area of the geometric template to obtain a second monochromatic light rainbow band;

[0012] S5: Mix the second monochromatic light rainbow band to obtain the finally synthesized simulated sunlight.

[0013] Optionally, step S1 includes:

[0014] The envelope shape is a closed figure composed of a D65 natural spectral curve and a straight line segment;

[0015] The straight line segment corresponds one-to-one with the wavelength horizontal axis of the D65 natural spectral curve.

[0016] Optionally, step S2 includes: The solid plate is made of a light-impermeable material.

[0017] Optionally, step S3 includes: The mixed light source has an energy distribution in the visible light band of 380 - 780 nm.

[0018] Optionally, step S4 includes:

[0019] Making the wavelength corresponding to the bottom straight line segment of the geometric template correspond one-to-one with the wavelength of the monochromatic light in the monochromatic light rainbow band;

[0020] Aligning the plane of the geometric template with the monochromatic light rainbow band;

[0021] For the monochromatic light rainbow band, passing through the hollowed-out area of the geometric template to obtain a second monochromatic light rainbow band.

[0022] A device for simulating sunlight spectrum synthesis, the device includes: a mixed light source, a light splitting element, a geometric template, and a light mixing device;

[0023] The mixed light source is used to provide mixed light;

[0024] The light splitting element is used to decompose the mixed light into monochromatic lights arranged in sequence according to wavelength to obtain a monochromatic light rainbow band;

[0025] A envelope shape is hollowed out and engraved in the middle of the geometric template;

[0026] Passing the monochromatic light rainbow band through the envelope shape of the geometric template to obtain a second monochromatic light rainbow band;

[0027] The light mixing device is used to mix the second monochromatic light rainbow band to obtain the finally synthesized simulated sunlight.

[0028] Optionally, the envelope shape includes: a D65 natural spectral curve and a straight line segment.

[0029] Optionally, the two ends of the straight line segment respectively correspond to the 380 nm wavelength and the 780 nm wavelength on the horizontal axis of the D65 natural spectral curve.

[0030] An electronic device includes a processor, a memory, a user interface, and a network interface. The memory is used to store instructions. The user interface and the network interface are used to communicate with other devices. The processor is used to execute the instructions stored in the memory, so that the electronic device executes a method for simulating the solar spectrum synthesis.

[0031] A computer-readable storage medium stores instructions that, when executed, perform a method for simulating the solar spectrum synthesis.

[0032] The beneficial effects brought by the technical solution provided in this application are:

[0033] By using an opaque solid plate, a mixed light source, a light splitting element, and a light mixing device, the monochromatic light rainbow band is blocked, and then the monochromatic lights are mixed to obtain the required natural light spectrum, realizing the accurate synthesis of the natural light spectrum. As long as the shape of the hollowed-out area of the solid plate is changed, any target spectrum can be synthesized. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The following will further illustrate this application in conjunction with the drawings. In the drawings:

[0035] Figure 1 is the step diagram in the embodiment of this application;

[0036] Figure 2 is the spectral curve and geometric template diagram in the embodiment of this application;

[0037] Figure 3 is the device module diagram in the embodiment of this application;

[0038] Figure 4 is the diagram of the second monochromatic light rainbow band in the embodiment of this application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] In order to have a clearer understanding of the technical features, objectives, and effects of this application, the specific embodiments of this application will now be described in detail with reference to the drawings.

[0040] The embodiment of this application provides a method for simulating the solar spectrum synthesis.

[0041] Please refer to Figure 1 , Figure 1 which is the step diagram of a method for simulating the solar spectrum synthesis in the embodiment of this application, and includes:

[0042] The method includes the following steps:

[0043] S1: Determine the envelope shape through the D65 natural spectral curve;

[0044] S2: Hollow out and engrave the envelope shape on a solid plate to obtain a geometric template;

[0045] S3: Decompose the mixed light into monochromatic lights arranged in sequence according to wavelengths to obtain a monochromatic light rainbow band;

[0046] S4: Let the monochromatic light rainbow band pass through the hollow area of the geometric template to obtain a second monochromatic light rainbow band;

[0047] S5: Mix the second monochromatic light rainbow band to obtain the finally synthesized simulated sunlight.

[0048] Step S1 includes:

[0049] The envelope shape is a closed figure composed of a D65 natural spectral curve and a straight line segment;

[0050] The straight line segment corresponds one-to-one with the wavelength horizontal axis of the D65 natural spectral curve.

[0051] As an embodiment, as Figure 2 shown, the left side is the spectral curve of D65 natural light. Take a solid plate, the material is not limited, and it must be light-tight. Engrave or otherwise cut out the curve shape on the plate, connect the bottom into a straight line, and then hollow it out to form a Figure 1 hollow geometric template as shown on the right.

[0052] Step S2 includes: The solid plate is made of a light-tight material.

[0053] Step S3 includes: The mixed light source has an energy distribution in the visible light band of 380 - 780 nm.

[0054] Step S4 includes:

[0055] Make the wavelength corresponding to the bottom straight line segment of the geometric template correspond one-to-one with the wavelength of the monochromatic light in the monochromatic light rainbow band;

[0056] Face the plane of the geometric template towards the monochromatic light rainbow band;

[0057] The monochromatic light rainbow band passes through the hollow area of the geometric template to obtain a second monochromatic light rainbow band.

[0058] A simulated sunlight spectrum synthesis device, the device includes: a mixed light source, a light splitting element, a geometric template, and a light mixing device;

[0059] The mixed light source is used to provide mixed light;

[0060] The light splitting element is used to decompose the mixed light into monochromatic lights arranged in sequence according to wavelengths to obtain a monochromatic light rainbow band;

[0061] A envelope shape is hollowly engraved in the middle of the geometric template;

[0062] Pass the monochromatic light rainbow band through the envelope shape of the geometric template to obtain a second monochromatic light rainbow band;

[0063] The light mixing device is used to mix the second monochromatic light rainbow band to obtain the finally synthesized simulated sunlight.

[0064] The envelope shape includes: the D65 natural spectral curve and straight line segments.

[0065] The two ends of the straight line segment respectively correspond to the 380nm wavelength and 780nm wavelength on the horizontal axis of the D65 natural spectral curve.

[0066] As an embodiment, use the device shown in Figure 3 for light synthesis: Take a light source (such as a xenon lamp) or a mixed light source composed of multiple light sources (such as a multi-channel LED light source), whose spectrum has energy distribution in the visible light band (380-780nm). Use a spectroscopic element such as a prism or a grating to decompose the light emitted by the light source into monochromatic lights arranged in order of wavelength (similar to a rainbow band). Place the above geometric template on the rainbow band and only allow part of the monochromatic light to pass through the hollow area. The light that passes through forms a pattern as shown in Figure 4 . The horizontal direction represents the wavelength distribution, and the vertical direction represents the energy distribution of each wavelength. Its envelope shape is the same as the D65 spectral curve. In order to restore the monochromatic light to white light, the light that passes through is collected by a light mixing device and mixed. The mixed light, that is, the finally synthesized simulated sunlight, is emitted from the light output hole.

[0067] The above are only exemplary embodiments of the present disclosure and should not be used to limit the scope of the present disclosure. That is, any equivalent changes and modifications made according to the teachings of the present disclosure still fall within the scope covered by the present disclosure.

[0068] This application aims to cover any variations, uses or adaptive changes of the present disclosure, which follow the general principles of the present disclosure and include common general knowledge or conventional technical means in the technical field not recorded in the present disclosure. The description and embodiments are only regarded as exemplary, and the scope and spirit of the present disclosure are defined by the claims.

Claims

1. A method for simulating Japanese spectral synthesis, characterized in that, The method includes the following steps: S1: Determine the envelope shape through the D65 natural spectral curve; S2: Hollow out and engrave the envelope shape on a solid plate to obtain a geometric template; S3: Decompose the mixed light into monochromatic lights arranged in sequence according to wavelength to obtain a monochromatic light rainbow band; S4: Let the monochromatic light rainbow band pass through the hollow area of the geometric template to obtain a second monochromatic light rainbow band; S5: Mix the second monochromatic light rainbow band to obtain the finally synthesized simulated sunlight.

2. The method for spectral synthesis imitating Japan as claimed in claim 1, wherein, Step S1 includes: The envelope shape is a closed figure composed of the D65 natural spectral curve and straight line segments; The straight line segments correspond one-to-one with the wavelength horizontal axis of the D65 natural spectral curve.

3. The method for simulating Japanese spectral synthesis according to claim 1, wherein, Step S2 includes: The solid plate is made of a light-impermeable material.

4. The method for simulating Japanese spectral synthesis according to claim 1, characterized in that, Step S3 includes: The mixed light source has an energy distribution in the visible light band of 380 - 780 nm.

5. The method for spectral synthesis imitating Japan as described in claim 1, wherein Step S4 includes: Make the wavelengths corresponding to the bottom straight line segments of the geometric template correspond one-to-one with the wavelengths of the monochromatic lights in the monochromatic light rainbow band; Align the plane of the geometric template with the monochromatic light rainbow band; The monochromatic light rainbow band passes through the hollow area of the geometric template to obtain a second monochromatic light rainbow band.

6. A Japanese-style spectral synthesis device, characterized in that, The device includes: a mixed light source, a light splitting element, a geometric template, and a light mixing device; The mixed light source is used to provide mixed light; The light splitting element is used to decompose the mixed light into monochromatic lights arranged in sequence according to wavelength to obtain a monochromatic light rainbow band; A envelope shape is hollowed out and engraved in the middle of the geometric template; Make the monochromatic light rainbow band pass through the envelope shape of the geometric template to obtain a second monochromatic light rainbow band; The light mixing device is used to mix the second monochromatic light rainbow band to obtain the finally synthesized simulated sunlight.

7. The spectral synthesis device imitating Japan according to claim 6, characterized in that The envelope shape includes: the D65 natural spectral curve and straight line segments.

8. The spectral synthesis device imitating Japan as described in claim 7, characterized in that, The two ends of the straight line segment respectively correspond to the 380 nm wavelength and 780 nm wavelength of the horizontal axis of the D65 natural spectral curve.

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