阅读说明：本技术 一种光源结构和灯具 (Light source structure and lamp ) 是由 郑如萍 方翔 赵毅 许建兴 陈云伟 于 2020-04-21 设计创作，主要内容包括：本申请提供了一种光源结构和灯具,该光源结构包括光源组件以及光学组件；光源组件包括基板和安装在基板上的混合光源,混合光源包括彩光光源组和多组白光光源组,彩光光源组包括多个单色光源,且多个单色光源的峰值波长和半波宽度均不同或部分相同；多组白光光源组和多个单色光源间隔排布在基板上,且且每一单色光源设于两相邻的白光光源组之间；光学组件设置在混合光源的出光光路上,混合光源发出的混合光线经过光学组件后被非线性吸收以减少混合光中的光谱蓝光区域。本申请提供的光源结构可使灯具发出的灯光光谱更接近自然光光谱,并有效降低蓝光危害保护视力。(The application provides a light source structure and a lamp, wherein the light source structure comprises a light source component and an optical component; the light source component comprises a substrate and a mixed light source arranged on the substrate, the mixed light source comprises a color light source group and a plurality of groups of white light source groups, the color light source group comprises a plurality of monochromatic light sources, and the peak wavelengths and the half-wave widths of the plurality of monochromatic light sources are different or partially the same; the white light source groups and the monochromatic light sources are arranged on the substrate at intervals, and each monochromatic light source is arranged between two adjacent white light source groups; the optical assembly is arranged on a light-emitting path of the mixed light source, and mixed light emitted by the mixed light source is nonlinearly absorbed after passing through the optical assembly so as to reduce a spectrum blue light region in the mixed light. The light source structure that this application provided can make the light spectrum that lamps and lanterns sent more be close the natural light spectrum to effectively reduce blue light harm and protect eyesight.)

1. A light source structure, comprising:

the light source assembly comprises a substrate and a mixed light source arranged on the substrate, the mixed light source comprises a color light source group and a plurality of groups of white light source groups, the color light source group comprises a plurality of monochromatic light sources, and the peak wavelengths and the half-wave widths of the monochromatic light sources are different or partially the same; the white light source groups and the monochromatic light sources are arranged on the substrate at intervals, and each monochromatic light source is arranged between two adjacent white light source groups; and the number of the first and second groups,

and the optical component is arranged on the light-emitting path of the mixed light source, and the mixed light emitted by the mixed light source is nonlinearly absorbed after passing through the optical component so as to reduce the spectrum blue region in the mixed light.

2. The light source structure of claim 1, wherein the color light source group comprises a plurality of first monochromatic light sources, a plurality of second monochromatic light sources and a plurality of third monochromatic light sources, and the peak wavelength and the half-wave width of the light emitted from the first monochromatic light sources, the second monochromatic light sources and the third monochromatic light sources are sequentially reduced; the white light source group comprises a plurality of white light sources emitting white light.

3. The light source structure according to claim 2, wherein the first monochromatic light source has a peak wavelength of 539nm and a half-wave width of 108 nm; the peak wavelength of the second monochromatic light source is 474nm, and the half-wave width is 21 nm; the peak wavelength of the third monochromatic light source is 451nm, and the half-wave width is 17 nm; the peak wavelength of the white light source is 451nm, and the half-wave width is 275 nm.

4. The light source structure of claim 3, wherein the first monochromatic light source, the second monochromatic light source, the third monochromatic light source and the white light source are uniformly mixed and arranged according to a preset radiation energy ratio condition, wherein the preset radiation energy ratio condition is as follows:

the ratio of the radiant energy of all the first monochromatic light sources, the radiant energy of all the second monochromatic light sources, the radiant energy of all the third monochromatic light sources and the radiant energy of all the white light sources is within the range of 10.05 +/-3, 2.02 +/-1, 0.02 +/-0.5 and 255.18 +/-30.

5. The light source structure according to claim 3, wherein in the white light source, the ratio of the spectral power of the light with the wavelength of 380nm to 430nm to the total spectral power of the white light source is in the range of 0.06 ± 0.03, the ratio of the spectral power of the light with the wavelength of 430nm to 451nm to the total spectral power of the white light source is in the range of 0.17 ± 0.12, and the ratio of the spectral power of the light with the wavelength of 451nm to 780nm to the total spectral power of the white light source is in the range of 0.77 ± 0.5.

6. The light source structure of claim 2, wherein the first, second, and third monochromatic light sources and the white light source are uniformly spaced on the substrate.

7. The light source structure according to any one of claims 1 to 6, wherein the optical assembly includes a reflective sheet, a light guide plate and a diffuser plate, the reflective sheet is opposite to the light source assembly at a distance, and the reflective sheet, the light guide plate and the diffuser plate are sequentially stacked along the light path of the mixed light source.

8. A lamp comprising a lamp cap, a supporting frame, a base and the light source structure as claimed in any one of claims 1 to 7, wherein two ends of the supporting frame are respectively connected to the lamp cap and the base, and the light source structure is disposed on the lamp cap.

9. The lamp of claim 8, wherein the lamp cap comprises a lamp housing having a mounting cavity and a heat-dissipating plate mounted in the mounting cavity, the light source assembly is fixed to the heat-dissipating plate, and the heat-dissipating plate is detachably connected to the lamp cap.

10. The lamp of claim 9, wherein the heat dissipation plate comprises a plate body and a mounting flange extending towards the base, the base plate is in the shape of a long ring and attached to an inner ring surface of the mounting flange, and the mounting flange is in limit clamping connection with the lamp holder.

Technical Field

The application belongs to the technical field of lamps, and particularly relates to a light source structure and a lamp.

Background

At present, in more and more places such as schools, LED light sources and LED lamps are adopted as teaching illumination. However, in the common white LED light source in the market, since a single blue light chip is mostly used to excite the phosphor to form white light, the spectrum distribution is not continuous, and is far from the natural light, and the energy of the blue light is too concentrated, so people are very bad for eye health and physiological health when they are in the light environment of the unnatural light for a long time. To address this problem, the industry has introduced a full spectrum or solar spectrum light source that typically uses a single light source mode with a spectrum that is continuous and close to the natural light spectrum. However, in the process of practical application to the lamp, since different optical materials have a certain absorption effect on the spectrum of the light emitted by the single light source, that is, the spectrum of the light with different wavelengths is changed to a certain extent through the transmission of the optical component, which may cause the problems of spectral deviation such as color temperature deviation, color rendering index reduction, spectrum discontinuity and the like, thereby greatly deviating from the spectrum of natural light, and the blue light cannot be effectively reduced, which is not beneficial to the eyesight protection of users.

Disclosure of Invention

An object of the embodiment of this application is to provide a light source structure to solve the deviated natural light spectrum of light spectrum that exists among the prior art, and have the blue light harm and be unfavorable for the technical problem who protects eyesight.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: a light source structure comprising:

the light source assembly comprises a substrate and a mixed light source arranged on the substrate, the mixed light source comprises a color light source group and a plurality of groups of white light source groups, the color light source group comprises a plurality of monochromatic light sources, and the peak wavelengths and the half-wave widths of the monochromatic light sources are different or partially the same; the white light source groups and the monochromatic light sources are arranged on the substrate at intervals, and each monochromatic light source is arranged between two adjacent white light source groups; and the number of the first and second groups,

and the optical component is arranged on the light-emitting path of the mixed light source, and the mixed light emitted by the mixed light source is nonlinearly absorbed after passing through the optical component so as to reduce the spectrum blue region in the mixed light.

Optionally, the color light source group includes a plurality of first monochromatic light sources, a plurality of second monochromatic light sources, and a plurality of third monochromatic light sources, and peak wavelengths and half-wave widths of light rays emitted by the first monochromatic light sources, the second monochromatic light sources, and the third monochromatic light sources are sequentially reduced; the white light source group comprises a plurality of white light sources emitting white light.

Optionally, the first monochromatic light source has a peak wavelength of 539nm and a half-wave width of 108 nm; the peak wavelength of the second monochromatic light source is 474nm, and the half-wave width is 21 nm; the peak wavelength of the third monochromatic light source is 451nm, and the half-wave width is 17 nm; the peak wavelength of the white light source is 451nm, and the half-wave width is 275 nm.

Optionally, the first monochromatic light source, the second monochromatic light source, the third monochromatic light source, and the white light source are uniformly mixed and arranged according to a preset radiation energy ratio condition, where the preset radiation energy ratio condition is:

the ratio of the radiant energy of all the first monochromatic light sources, the radiant energy of all the second monochromatic light sources, the radiant energy of all the third monochromatic light sources and the radiant energy of all the white light sources is within the range of 10.05 +/-3, 2.02 +/-1, 0.02 +/-0.5 and 255.18 +/-30.

Optionally, in the white light source, a ratio of a spectral power of light with a wavelength between 380nm and 430nm to a total spectral power of the white light source is in a range of 0.06 ± 0.03, a ratio of a spectral power of light with a wavelength between 430nm and 451nm to a total spectral power of the white light source is in a range of 0.17 ± 0.12, and a ratio of a spectral power of light with a wavelength between 451nm and 780nm to a total spectral power of the white light source is in a range of 0.77 ± 0.5.

Optionally, the first monochromatic light source, the second monochromatic light source, the third monochromatic light source and the white light source are arranged on the substrate at regular intervals.

Optionally, the optical assembly includes a reflector plate, a light guide plate and a diffuser plate, the reflector plate is opposite to the light source assembly at intervals, and the reflector plate, the light guide plate and the diffuser plate are sequentially stacked along the light-emitting path direction of the hybrid light source.

The application also provides a lamp, which comprises a lamp holder, a support frame, a base and the light source structure, wherein the two ends of the support frame are respectively connected with the lamp holder and the base, and the light source structure is arranged on the lamp holder.

Optionally, the lamp holder includes the lamp body that has the installation cavity and installs heat dissipation disc in the installation cavity, the light source subassembly is fixed on the heat dissipation disc, just the heat dissipation disc with the lamp holder can be dismantled and be connected.

Optionally, the heat dissipation dish includes a set body and orientation the mounting flange that the base extends, the base plate is rectangular cyclic annular, and the laminating is in the interior anchor ring of mounting flange, just the mounting flange with the spacing joint of lamp holder.

The application provides a light source structure's beneficial effect lies in: compared with the prior art, this application light source structure is owing to be equipped with mixed light source and the optical assembly who sets up on this mixed light source light-emitting path, and mixed light source includes the monochromatic source and a plurality of white light source of a plurality of different wavelengths, so on the basis of considering the optical absorption curve, the light source structure just accessible is synthesized the mode of the mixed light ray of a high imitative natural light spectrum by the monochromatic source and the white light source of a plurality of different wavelengths, make this mixed light pass through optical assembly's nonlinear absorption back again, still can be higher with the spectrum coincidence degree of sunlight that is natural light, and this mixed light still has the advantage that high apparent finger, low blue light harm. Compared with the common LED lamps on the market at present, the light spectrum emitted by the lamp with the light source structure is closer to the natural light spectrum, the common LED of the blue light peak value is lower, blue light harm is effectively avoided, the LED lamp is more suitable for various lamps such as classroom lamps, blackboard lamps and desk lamps, the eyesight can be effectively protected, the visual comfort level is improved, the user can be facilitated, and particularly, the physiological health of students can be realized, so that the healthy and comfortable light environment can be provided for the students.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a lamp provided in an embodiment of the present application;

fig. 2 is an exploded view of a lamp provided in an embodiment of the present application;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

fig. 4 is a schematic plan view of a light source module in a light source structure according to an embodiment of the present application.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Light source assembly	200	Optical assembly
110	Substrate	120	Mixed light source
				121	Color light source group	122	White light source group
121a	A first monochromatic light source	121b	Second monochromatic light source
				121c	Third monochromatic light source	122a	White light source
300	Lamp holder	400	Supporting frame
				500	Base seat	310	Lamp shell
600	Heat dissipation plate	320	Mounting cavity
				610	Disc body	620	Mounting flange
210	Reflector plate	220	Light guide plate
				230	Diffusion plate	240	Light-emitting grid
250	Shading ring	800	Face ring

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It should be noted that the terms of orientation such as left, right, up and down in the embodiments of the present application are only relative to each other or are referred to the normal use state of the product, and should not be considered as limiting.

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The embodiment of the application provides a light source structure.

Referring to fig. 2 to 4, in an embodiment, the light source structure includes a light source assembly 100 and an optical assembly 200; the light source assembly 100 includes a substrate 110 and a mixed light source 120 mounted on the substrate 110, the mixed light source 120 includes a color light source group 121 and a plurality of white light source groups 122, the color light source group 121 includes a plurality of monochromatic light sources, and peak wavelengths and half-wave widths of the plurality of monochromatic light sources are different or partially the same; each white light source group 122 includes a plurality of white light sources 122a, the plurality of white light source groups 122 and the plurality of monochromatic light sources are arranged at intervals along the length direction of the substrate 110, and a monochromatic light source is arranged between two adjacent white light source groups 122; the optical assembly 200 is disposed on the light-emitting path of the mixed light source 120, and the mixed light emitted from the mixed light source 120 is nonlinearly absorbed by the optical assembly 200 to reduce the spectrum blue region in the mixed light.

Based on the structural design, in the embodiment, the light source structure is provided with the light mixing light source and the optical component 200 arranged on the light emitting path of the light mixing light source, and the light mixing light source comprises the monochromatic light sources with different wavelengths and the white light sources 122a, so that on the basis of considering the optical absorption curve, the light source structure can synthesize the light mixing light ray with a high imitation natural light spectrum by the monochromatic light sources with different wavelengths and the white light sources, so that the light mixing light ray can still have higher spectral coincidence degree with sunlight, namely natural light, after being subjected to nonlinear absorption by the optical component 200, and the light mixing light ray also has the advantages of high color rendering index and low blue light hazard. Compared with the common LED lamps on the market at present, the light spectrum emitted by the lamp with the light source structure is closer to the natural light spectrum, the common LED of the blue light peak value is lower, blue light harm is effectively avoided, the LED lamp is more suitable for various lamps such as classroom lamps, blackboard lamps and desk lamps, the eyesight can be effectively protected, the visual comfort level is improved, the user can be facilitated, and particularly, the physiological health of students can be realized, so that the healthy and comfortable light environment can be provided for the students.

Referring to fig. 4, in the present embodiment, the color light source group 121 includes a plurality of first monochromatic light sources 121a, a plurality of second monochromatic light sources 121b, and a plurality of third monochromatic light sources 121c, and peak wavelengths and half-wave widths of light emitted from the first monochromatic light sources 121a, the second monochromatic light sources 121b, and the third monochromatic light sources 121c are sequentially reduced; the white light source 122a emits white light of a broad spectrum. Like this, through the design of the at least three kinds of monochromatic light sources that peak wavelength and half-wave width reduce in proper order, just can reach and be favorable to keeping the spectrum continuity on the one hand, on the other hand enables the spectral wavelength as far as possible lower purpose of numerical value after the three monochromatic light sources mix, and then is favorable to reducing the blue light output of lamps and lanterns, reduces blue light harm protection eyesight. Similarly, the design of emitting the white light with a wide spectrum from the white light source 122a is also beneficial to maintaining the continuity of the spectrum, and the white light is further mixed with the three monochromatic light sources to obtain the highly imitated natural light with better spectrum continuity and smaller blue area.

Further, in the present embodiment, the peak wavelength of the first monochromatic light source 121a is preferably 539nm, and the half-wave width is 108 nm; the peak wavelength of the second monochromatic light source 121b is preferably 474nm, and the half-wave width is 21 nm; the peak wavelength of the third monochromatic light source 121c is preferably 451nm, and the half-wave width is 17 nm; the peak wavelength of the white light source 122a is 451nm and the half-wave width is 275 nm. It is understood that the light of the first monochromatic light source 121a having a peak wavelength of 539nm and a half-wave width of 108nm is generally green, but its monochromaticity is inferior to that of the second monochromatic light source 121b and the third monochromatic light source 121 c; the light of the second monochromatic light source 121b with a peak wavelength of 474nm and a half-wave width of 21nm is usually blue light, and has good monochromaticity; the light of the third monochromatic light source 121c having a peak wavelength of 451nm and a half-wave width of 17nm is generally violet light biased to blue, and monochromaticity is better; while white light source 122a having a peak wavelength of 451nm and a half-wave width of 275nm emits white light whose spectrum covers most of the spectral range of visible light. However, in the present embodiment, the mixed light can more easily achieve the purpose of highly imitating natural light by the mixture of the plurality of monochromatic light sources with the peak wavelength and the half-wave width and the white light source 122 a.

Further, in the present embodiment, the first monochromatic light source 121a, the second monochromatic light source 121b, the third monochromatic light source 121c, and the white light source 122a are uniformly mixed and arranged according to a preset radiation energy ratio condition, where the preset radiation energy ratio condition is: the ratio of the radiant energy of all first monochromatic light sources 121a, the radiant energy of all second monochromatic light sources 121b, the radiant energy of all third monochromatic light sources 121c and the radiant energy of all white light sources 122a is in the range of 10.05 + -3, 2.02 + -1, 0.02 + -0.5, 255.18 + -30. Of course, in other embodiments, the radiation energy ratio of each monochromatic light source and the white light source 122a may also be set as required, but in this embodiment, designing according to the optimized preset radiation energy ratio condition is more favorable for generating the mixed light with highly simulated natural spectrum.

Further, in the present embodiment, in the white light source 122a, the ratio of the spectral power of the light with the wavelength between 380nm and 430nm to the total spectral power of the white light source 122a is in the range of 0.06 ± 0.03, the ratio of the spectral power of the light with the wavelength between 430nm and 451nm to the total spectral power of the white light source 122a is in the range of 0.17 ± 0.12, and the ratio of the spectral power of the light with the wavelength between 451nm and 780nm to the total spectral power of the white light source 122a is in the range of 0.77 ± 0.5. It is understood that light having a wavelength between 451nm and 780nm, i.e., light from blue-violet to red, is the major portion of the broad spectrum white light emitted by the white light source 122a, while a smaller portion having a wavelength between 380nm and 451nm is blue-violet to violet. The white light designed by the special spectral power is mixed with the plurality of monochromatic lights also designed by the special spectral power, so that mixed light with high simulated natural spectrum can be generated.

The present application further provides a lamp, which includes a light source structure, and the specific structure of the light source structure refers to the above embodiments, and since the lamp employs all technical solutions of all the above embodiments, the lamp also has all beneficial effects brought by the technical solutions of the above embodiments, and is not repeated here.

As shown in fig. 1 to 3, the lamp further includes a lamp head 300, a supporting frame 400, and a base 500, two ends of the supporting frame 400 are respectively connected to the lamp head 300 and the base 500, and the light source structure is disposed on the lamp head 300. Specifically, the lamp cap 300 includes a lamp housing having the mounting cavity 320 and a heat dissipation plate installed in the mounting cavity 320, the light source assembly 100 is fixed on the heat dissipation plate, and the heat dissipation plate is detachably connected to the lamp cap 300, so that the heat dissipation efficiency of the light source assembly 100 can be improved by the heat dissipation plate, and the assembly and maintenance convenience of the light source assembly 100 and the heat dissipation plate can be improved.

Referring to fig. 4, in the present embodiment, the first monochromatic light source 121a, the second monochromatic light source 121b, the third monochromatic light source 121c and the white light source 122a are uniformly spaced on the substrate 110. Specifically, when the substrate 110 is flattened, it can be seen that, as shown in fig. 4, 72 white light sources 122a (each white light source group 122 includes 8 white light sources 122a, although the number of the white light sources 122a may be other numbers), 2 second monochromatic light sources, 1 third monochromatic light source 121c, and 4 first monochromatic light sources 121a are uniformly spaced in sequence along the length direction of the substrate 110, i.e., from front to back direction, wherein each of the first monochromatic light sources 121a, the second monochromatic light sources 121b, and the third monochromatic light sources 121c has a single current of preferably 30mA, and a single light source power of preferably 0.09W; the single current of the white light source 122a may preferably be 49.2mA, and the power of the single light source may preferably be 0.01476W. Therefore, the light-emitting position, the actual light-emitting angle and the light source power of each light source can be better defined, and the light rays emitted by each light source can be further mixed more uniformly.

Specifically, as shown in fig. 3, the heat dissipation plate includes a plate body 610 and a mounting flange 620 extending toward the base 500, after the substrate 110 is mounted on the heat dissipation plate, the substrate 110 is in a long ring shape and is attached to an inner annular surface of the mounting flange 620, so that a larger mounting space can be provided for mounting a plurality of single light sources, and the mounting flange 620 is in limit engagement with the lamp cap 300, for example, a limit protrusion is disposed on an inner peripheral wall of the mounting cavity 320 of the lamp cap 300, and the light source board is clamped on the limit protrusion.

Referring to fig. 2 and fig. 3, in the present embodiment, the optical assembly 200 includes a reflective sheet 210, a light guide plate 220 and a diffusion plate 230, the reflective sheet 210 is opposite to the light source assembly 100 at a distance, and the reflective sheet 210, the light guide plate 220 and the diffusion plate 230 are sequentially stacked along the light-emitting path direction of the light source mixture 120. The reflecting plate mainly reflects the light rays emitted by each light source so as to enhance the light uniformity of the mixed light rays in the process of multiple mixing; the light guide plate 220 has an extremely high refractive index so as to further refract light; the diffusion plate 230 is an anti-glare plate, which can prevent glare and make vision more comfortable; a light-emitting grid 240 is further stacked on one side of the diffusion plate 230 away from the lamp cap 300, so that light is emitted from each hole of the light-emitting grid 240; in order to prevent light leakage, a light shielding ring 250 is further disposed at an outer edge of the optical assembly 200, and finally, the heat dissipation plate, the light source assembly 100, the optical assembly 200, the light shielding ring 250, the light exit grille 240 and other components are fixedly mounted in the mounting cavity 320 by engaging the surface ring 800 with the lamp cap 300.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.