CN215892091U - Light-emitting device with adjustable color temperature and brightness - Google Patents
Light-emitting device with adjustable color temperature and brightness Download PDFInfo
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- CN215892091U CN215892091U CN202121912267.XU CN202121912267U CN215892091U CN 215892091 U CN215892091 U CN 215892091U CN 202121912267 U CN202121912267 U CN 202121912267U CN 215892091 U CN215892091 U CN 215892091U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The utility model provides a light-emitting device with adjustable color temperature and brightness, which comprises: the inner surface of the reflection cavity is provided with a diffuse reflection material; the light emitted by the at least two groups of light source components with different color temperatures irradiates the inner surface of the reflection cavity, so that the light forms mixed light with the color temperature different from the original color temperature after being subjected to diffuse reflection by the diffuse reflection material; the power supply part is electrically connected with the light source part so as to supply power to the light source part; the control part is electrically connected with the power supply part; the control part controls a parameter of an output current of the power supply part to adjust a color temperature and/or a brightness of the light source part. The utility model not only meets the light supplement requirement, but also meets the requirements of adjustable color temperature and brightness; meanwhile, by adopting a reflective light-emitting technology, visual fatigue caused by the stimulation of the glare of the lamp to human eyes is reduced, and the myopia condition of people is improved.
Description
Technical Field
The utility model relates to the field of design of lighting lamps, in particular to a light-emitting device with adjustable color temperature and brightness.
Background
The LED lighting device is widely used in different scenes, for example, in classroom lighting, the LED lighting device becomes the mainstream of indoor lighting, especially office lighting, due to its energy-saving and environmental-friendly characteristics. However, the color temperature of the conventional classroom lighting lamp is only one color temperature, which can only satisfy the light supplement for students and teachers in class, and does not consider the change of the requirements of the color temperature and the light intensity of the light of human eyes in the daytime and at night. And multimedia teaching is increasingly used, and projection requires that classroom lighting cannot be too bright, otherwise a projection screen cannot be clearly seen, and cannot be too dark, otherwise characters in a book cannot be clearly seen.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, the present invention provides a light emitting device with adjustable color temperature and brightness, which is used to solve the technical problem of non-adjustable color temperature and brightness of classroom lighting lamps in the prior art.
To achieve the above object, the present invention provides a light emitting device with adjustable color temperature and brightness, comprising: the inner surface of the reflection cavity is provided with a diffuse reflection material; the light emitted by the at least two groups of light source components with different color temperatures irradiates the inner surface of the reflection cavity, so that the light forms mixed light with the color temperature different from the original color temperature after being subjected to diffuse reflection by the diffuse reflection material; the power supply part is electrically connected with the light source part so as to supply power to the light source part; the control part is electrically connected with the power supply part; the control part controls a parameter of an output current of the power supply part to adjust a color temperature and/or a brightness of the light source part.
In an embodiment of the utility model, the at least two sets of light source components with different color temperatures are arranged alternately.
In an embodiment of the utility model, the diffuse reflection material includes a spraying type diffuse reflection paint or a sticking type diffuse reflection film.
In an embodiment of the present invention, the light emitting device further includes: a light emitting plate; the reflecting cavity is a cavity with a downward opening and is covered on the light emitting plate.
In an embodiment of the utility model, an anti-glare film is further disposed on the light emitting plate.
In an embodiment of the utility model, the light emitting device further includes an aluminum frame; the aluminum profile frames are arranged on two transverse sides of the reflection cavity; the lamp panel is provided with a support for placing one or more lamp panels provided with the light source component, so that the heat dissipation of the light source component is facilitated.
In an embodiment of the present invention, the light emitting device further includes: the end covers are arranged at two ends of the reflection cavity; the end cover and the aluminum profile frame are combined into a quadrilateral frame, and the light emitting plate is connected with the aluminum profile frames on two sides of the reflection cavity to jointly form a main body of the light emitting device.
In an embodiment of the utility model, the power supply unit is disposed on a back surface of the reflective cavity.
As described above, the light emitting device with adjustable color temperature and brightness according to the present invention has the following advantages: the method and the device solve the problem of insufficient light of the classroom in daily class, meet the requirements of human eyes on different color temperature and light intensity from the daytime in night class, and reduce the brightness of the classroom according to the projection requirements to make the projection screen clearer; the color temperature of the mixed light is smooth and natural, the consistency is good, no color temperature fault feeling exists, and the vision is more comfortable; meanwhile, the reflective light-emitting technology is adopted, so that the problem of visual fatigue caused by the stimulation of glare of the lamp to human eyes is reduced, and the myopia condition of students is improved.
Drawings
Fig. 1 is a schematic structural diagram of a classroom lamp with adjustable color temperature and brightness according to an embodiment of the present invention.
FIG. 2A is a schematic side sectional view of a classroom lamp with adjustable color temperature and brightness according to an embodiment of the present invention.
FIG. 2B is a schematic enlarged side sectional view of a classroom lamp with adjustable color temperature and brightness according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of an overall structure of a classroom lamp with adjustable color temperature and brightness according to an embodiment of the utility model.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship may be made without substantial technical changes.
In order to solve the technical problems in the prior art, the utility model provides a light-emitting device with adjustable color temperature and brightness, which is used for solving the technical problem that the color temperature and the brightness of a classroom illuminating lamp in the prior art are not adjustable. It should be noted that the light-emitting device provided in this embodiment may be a classroom lamp, a street lamp, an indoor lamp, a landscape lamp, etc., and is not described in detail because of its various types. In addition, for the convenience of understanding, the following embodiments only use the classroom lamp as an example to illustrate the specific structure of the light-emitting device, but it should be understood that the light-emitting device is not limited to the classroom lamp.
Fig. 1 is a schematic structural diagram of a classroom lamp with adjustable color temperature and brightness according to an embodiment of the present invention, which mainly includes: the LED lamp comprises a reflection cavity 101, at least two groups of light source components 102 with different color temperatures, a lamp panel 1021, a power supply component 103, a control component 1031 and a light-emitting plate 105.
Specifically, the inner surface of the reflective cavity 101 is provided with a diffuse reflection material 1011, and the light emitted from the light source component 102 irradiates the inner surface of the reflective cavity 101, so that the light is diffused by the diffuse reflection material 1011 to form a mixed light with a color temperature different from the original color temperature. The power supply part 103 is electrically connected to the light source part 102 to supply power to the light source part 102. The control part 1031 is electrically connected to the power supply part 103; the control part 1031 controls the parameters of the output current of the power supply part 103 to adjust the color temperature and/or brightness of the light source part 102.
It should be noted that the light source unit 102 mainly converts an electrical signal into an optical signal for illumination; it may be a semiconductor Light Emitting Diode (LED) or a Laser Diode (LD). In the embodiment, the LED lamp is taken as an example, the LED lamp adopts a secondary optical design form, so that the illumination efficiency is higher; the LED lamp has small light attenuation and longer service life; the light emitting diode of the LED lamp is a low-voltage device, and is safer to use. The diffuse reflection material 1011 refers to a material which can randomly reflect light rays to all directions, and is a common PET material; the high-diffuse-reflection material is preferably selected in the embodiment, and the high-diffuse-reflection material can change a point light source into a surface light source, so that light rays are fully mixed, light ray homogenization is realized, the light effect is improved, glare or light spots can be eliminated, and the color development is improved. The control component 1031 may be an arm (advanced RISC machines) controller, an fpga (field Programmable Gate array) controller, an soc (system on chip) controller, a dsp (digital Signal processing) controller, or an mcu (micro controller unit) controller.
In some examples, the control part 1031 adjusts the color temperature and/or the brightness of the light source part 102 by controlling the magnitude and/or the time of the output current of the power supply part 103. Wherein, the control manner of the control component 1031 includes:
control mode 1) the control unit 1031 controls the current magnitude and/or the energization time of each set of light source units 102, and obtains color temperatures of various formulations by making the contribution amounts of light emitted from the light source units 102 different. It should be understood that, in the present control method, the light intensity of the light source part 102 can be controlled by controlling only the current magnitude of each set of the light source part 102, thereby controlling the contribution amount of the light emitted by the light source part 102; the on-off time node of each group of light source components 102 can be controlled by controlling the power-on time of each group of light source components 102, so as to control the contribution amount of the light emitted by the light source components 102; of course, the current magnitude and the power-on time of each set of light source components 102 can also be controlled simultaneously to adjust the contribution amount of the light emitted therefrom.
Control mode 2) the control part 1031 increases or decreases the current of each set of light source parts 102 in the same proportion to obtain light rays with unchanged color temperature but changed brightness. It should be understood that, since the current of each set of light source components 102 is adjusted proportionally, the contribution amount of the light emitted by each set of light source components 102 does not actually change along with the change of the current, so the color temperature does not change, but the overall brightness of the lamp changes.
It should be noted that the light emitting device with adjustable color temperature and brightness provided by the present invention is a hardware device, which can be used alone or in combination with some existing software or programs, but the present invention does not relate to any software technology update.
In some examples, the at least two sets of light source components 102 that differ in color temperature are arranged alternately. For example: the light source part 102 that two sets of colour temperatures that this embodiment adopted are different is high colour temperature LED lamp pearl group 10211, low colour temperature LED lamp pearl group 10212, and they alternate arrangement in proper order in lamp plate 1021 can make luminous more even.
It should be noted that the light source component 102 may also be more than two sets of LED lamp bead sets with different color temperatures. For example: three groups of LED lamp bead groups A, B, C with different color temperatures are adopted, and the LED lamp bead groups are arranged on the lamp panel 1021 in sequence at intervals, and the sequence is ABCABC … … or ACBACB … …. Therefore, in order to enable the light to be more uniform, the LED lamp bead groups with different color temperatures arranged at intervals are preferably in the same circular arrangement sequence.
In some examples, the diffuse reflective material 1011 may be a spray-on high diffuse reflective coating, such as: the substrate diffuse reflection coating, the antifouling diffuse reflection coating and the common diffuse reflection coating are selected in the embodiment, and the common diffuse reflection coating is selected; or a sticking type high diffuse reflection film, for example: a PET film. The diffuse reflection material 1011 helps to eliminate glare and improve light efficiency.
For ease of understanding, further examples are now described in connection with FIG. 1 as follows: the two groups of light source components 102 with different color temperatures are a high-color-temperature LED lamp bead group 10211 and a low-color-temperature LED lamp bead group 10212, and are preferably arranged at equal intervals for more uniform light emission. Therefore, the high-color-temperature LED lamp bead set 10211 and the low-color-temperature LED lamp bead set 10212 are arranged on the lamp panel 1021 at equal intervals, and the fixed connection manner includes, but is not limited to, threaded connection, adhesive connection, snap connection, welding connection, interference fit connection, magnetic connection, and the like; the light emitted by the LED lamp shines on the inner surface of the reflection cavity 101 attached with the high diffuse reflection film 1011, and forms mixed light different from the original color temperature through high diffuse reflection, so that the luminous efficiency is improved, and good light color consistency is ensured. Meanwhile, the power supply unit 103 outputs two paths of current to the high color temperature LED lamp bead set 10211 and the low color temperature LED lamp bead set 10212 respectively to supply power to the high color temperature LED lamp bead set 10211 and the low color temperature LED lamp bead set 10212; the control part 1031 adjusts the color temperature and/or the luminance of the light source part 102 by controlling the magnitude and/or the time of the output current of the power supply part 103.
The control component 1031 and the power supply component 103 may be two independent components connected to each other, or may be integrated into one body. Specifically, the control component 1031 and the power component 103 are connected as independent components through a power fixing plate, which can save space and facilitate control; the control component 1031 may also be integrated inside the power supply component 103, for example, fixed therebetween by a PIN, to further save space.
In some examples, the reflective cavity 101 is designed as a cavity with a downward opening, and covers the light-emitting plate 105; the light emitting plate 105 is further provided with an anti-glare film 1051, and the main function of the anti-glare film 1051 is to reduce or eliminate reflected light on the light emitting plate 105, so as to increase the light transmission amount, reduce or eliminate stray light, and reduce glare.
Particularly, the light that high colour temperature LED lamp pearl group 10211 and low colour temperature LED lamp pearl group 10212 sent shines to the internal surface of reflection chamber 101, and the wide-angle light through high diffuse reflection can reduce exit angle through anti-glare film 1051 again to reduce and dazzle light.
FIG. 2A is a schematic side sectional view of a classroom lamp with adjustable color temperature and brightness according to an embodiment of the present invention; FIG. 2B is a schematic diagram showing a partial enlarged side cross-section of a classroom lamp with adjustable color temperature and brightness according to an embodiment of the present invention; the classroom lamp also includes: aluminum profile frame 104, end cap 106.
In some examples, aluminum frame 104 is disposed on both lateral sides of the reflective cavity 101, and end caps 106 are disposed on both longitudinal ends of the reflective cavity 101. It should be understood that the transverse direction and the longitudinal direction defined in the present embodiment represent two different directions along the reflective cavity 101, for example, the length direction of the reflective cavity 101 may be defined as the transverse direction, the width direction as the longitudinal direction, or the width direction as the transverse direction and the length direction as the longitudinal direction, and the present embodiment is not particularly limited.
The aluminum profile frame 104 and the reflection cavity 101 are fixedly connected, and the fixed connection mode includes, but is not limited to, threaded connection, bonding connection, buckling connection, clamping connection, welding connection, interference fit connection, magnetic connection and the like; the end cap 106 and the reflective cavity 101 are fixedly connected to each other by means of, but not limited to, a threaded connection, an adhesive connection, a snap connection, a welded connection, an interference fit connection, a magnetic connection, and the like. Additionally, in some examples, the fixed connection between the end cap 106 and the aluminum profile frame 104 includes, but is not limited to, a threaded connection, an adhesive connection, a snap connection, a welded connection, an interference fit connection, a magnetic attraction connection, and the like; as an example of the snap connection shown in fig. 1 and 2B, the aluminum frame 104 has a bracket 1041, which is an integrated structure. One or more lamp panels 1021 are arranged on the support 1041, the aluminum profile frame 104 and the end cover 106 are in clamping connection, and threaded connection can be additionally arranged to further consolidate fixation between the aluminum profile frame and the end cover.
In an embodiment of the utility model, the one or more lamp panels 1021 are arranged on the bracket 1041 of the aluminum profile frame 104, and the fixed connection manner between the lamp panels 1021 and the bracket 1041 of the aluminum profile frame 104 includes, but is not limited to, threaded connection, adhesive connection, snap connection, welding connection, interference fit connection, magnetic connection, and the like; the lamp panel 1021 is provided with the light source component 102, so that heat generated by the light source component 102 can be dissipated outwards through the lamp panel 1021 and the aluminum profile frame 104.
In this embodiment, preferably, two lamp panels 1021 are arranged on the support 1041 of the aluminum profile frame 104 on the two transverse sides of the reflection cavity 101, and each lamp panel 1021 is provided with a high-color-temperature LED lamp bead set 10211 and a low-color-temperature LED lamp bead set 10212 which are arranged alternately. More light panels 1021 can accommodate more light source modules 102 to meet different lighting needs.
As shown in fig. 3, which is a schematic view of an overall structure of a classroom lamp with adjustable color temperature and brightness according to an embodiment of the present invention, an end cap 106 and an aluminum frame 104 are combined to form a quadrilateral frame, and a light-emitting plate 105 is inserted into the aluminum frame 104 on two lateral sides of a reflective cavity 101 to jointly form a main body of the classroom lamp.
Specifically, the light emitting plate 105 may be inserted into a limiting groove of the aluminum profile frame 104; and the frame can also be fixedly connected to the aluminum profile frame 104, and the fixed connection manner includes, but is not limited to, threaded connection, adhesive connection, snap connection, welded connection, interference fit connection, magnetic connection, and the like.
In some examples, power supply component 103 is disposed on the back of reflective cavity 101, both to facilitate control and not to block light. The power supply unit 103 is fixedly connected to the reflective cavity 101, and the fixed connection manner includes, but is not limited to, a threaded connection, an adhesive connection, a snap connection, a welding connection, an interference fit connection, a magnetic connection, and the like.
In conclusion, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (8)
1. A light emitting device with adjustable color temperature and brightness, comprising:
the inner surface of the reflection cavity is provided with a diffuse reflection material;
the light emitted by the at least two groups of light source components with different color temperatures irradiates the inner surface of the reflection cavity, so that the light forms mixed light with the color temperature different from the original color temperature after being subjected to diffuse reflection by the diffuse reflection material;
the power supply part is electrically connected with the light source part so as to supply power to the light source part;
the control part is electrically connected with the power supply part; the control part controls a parameter of an output current of the power supply part to adjust a color temperature and/or a brightness of the light source part.
2. A light emitting device with adjustable color temperature and brightness as claimed in claim 1, wherein: the at least two groups of light source components with different color temperatures are arranged alternately.
3. A light emitting device with adjustable color temperature and brightness as claimed in claim 1, wherein: the diffuse reflection material comprises a spraying type diffuse reflection coating or a sticking type diffuse reflection film.
4. A light emitting device with adjustable color temperature and brightness as claimed in claim 1, wherein: the light emitting device further includes: a light emitting plate; the reflecting cavity is a cavity with a downward opening and is covered on the light emitting plate.
5. A light emitting device with adjustable color temperature and brightness according to claim 4, characterized in that: and the light emitting plate is also provided with an anti-glare film.
6. A light emitting device with adjustable color temperature and brightness as claimed in claim 1, wherein: the light-emitting device also comprises an aluminum profile frame; the aluminum profile frames are arranged on two transverse sides of the reflection cavity; the lamp panel is provided with a support for placing one or more lamp panels provided with the light source component, so that the heat dissipation of the light source component is facilitated.
7. A light emitting device with adjustable color temperature and brightness according to claim 6, characterized in that: the light emitting device further includes: the end covers are arranged at the two longitudinal ends of the reflecting cavity; the end cover and the aluminum section bar frame are combined into a quadrilateral frame,
the light emitting device further comprises a light emitting plate; the light emitting plate is connected with the aluminum profile frames on two sides of the reflection cavity to jointly form a main body of the light emitting device.
8. A light emitting device with adjustable color temperature and brightness as claimed in claim 1, wherein: the power supply component is arranged on the back of the reflection cavity.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121912267.XU CN215892091U (en) | 2021-08-16 | 2021-08-16 | Light-emitting device with adjustable color temperature and brightness |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121912267.XU CN215892091U (en) | 2021-08-16 | 2021-08-16 | Light-emitting device with adjustable color temperature and brightness |
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| CN215892091U true CN215892091U (en) | 2022-02-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117750595A (en) * | 2024-02-19 | 2024-03-22 | 深圳市光脉电子有限公司 | Hybrid light source control method, system, electronic equipment and storage medium |
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2021
- 2021-08-16 CN CN202121912267.XU patent/CN215892091U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117750595A (en) * | 2024-02-19 | 2024-03-22 | 深圳市光脉电子有限公司 | Hybrid light source control method, system, electronic equipment and storage medium |
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