CN115013756B - Light-emitting device and lamp - Google Patents
Light-emitting device and lamp Download PDFInfo
- Publication number
- CN115013756B CN115013756B CN202110247318.XA CN202110247318A CN115013756B CN 115013756 B CN115013756 B CN 115013756B CN 202110247318 A CN202110247318 A CN 202110247318A CN 115013756 B CN115013756 B CN 115013756B
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- light
- reflecting
- light reflecting
- emitting
- emitting device
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S6/00—Lighting devices intended to be free-standing
- F21S6/002—Table lamps, e.g. for ambient lighting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S6/00—Lighting devices intended to be free-standing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
- F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
Abstract
The invention relates to the technical field of lamps and lanterns, and discloses a light-emitting device and a lamp, wherein the light-emitting device comprises two light-emitting mechanisms which are arranged at intervals and form an included angle, and the light-emitting mechanisms comprise: the light reflecting cup comprises a first light reflecting part and a second light reflecting part which are connected with each other, and the light reflecting surface of the second light reflecting part is a concave cambered surface; the first light-emitting component is arranged on one side, far away from the second light-reflecting portion, of the first light-reflecting portion, and is arranged along the length direction of the first light-reflecting portion, and the light rays emitted by the first light-emitting component can be partially irradiated to the light-reflecting surface of the first light-reflecting portion and the light-reflecting surface of the second light-reflecting portion. Most of the light rays emitted by the first light-emitting component are directly or reflected to the area below and in front of the light-emitting mechanism, so that the light ray utilization rate is improved; the light emitted by the light-emitting device covers the right front and the left and right areas of the right front of the light-emitting device, the illumination intensity is relatively uniform, and visual fatigue is not easy to generate.
Description
Technical Field
The present disclosure relates to lighting devices, and particularly to a lighting device.
Background
Most of the lamp shades of the existing desk lamp designs in the market belong to decoration, and the geometric shape of the section does not consider the angle of the lamp shade, the matching of reflecting materials and a light source; the light of desk lamp is directly directed to the desktop, and illumination area includes from inside to outside bright spot district, bright district and dim light district, and illumination intensity is extremely inhomogeneous. If the desk lamp is used for learning or working, eyes of people can be stimulated, and visual fatigue is easy to generate for a long time.
Therefore, a light emitting device and a lamp are needed to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to provide a light-emitting device and a lamp, which have uniform illumination intensity and are not easy to cause visual fatigue.
To achieve the purpose, the invention adopts the following technical scheme:
in one aspect, a light emitting device is provided, including two intervals and being the luminous mechanism that the contained angle set up, luminous mechanism includes:
the light reflecting cup comprises a first light reflecting part and a second light reflecting part which are connected with each other, and the light reflecting surface of the second light reflecting part is a concave cambered surface;
the first light-emitting component is arranged on one side, far away from the second light-reflecting portion, of the first light-reflecting portion, and is arranged along the length direction of the first light-reflecting portion, and the light rays emitted by the first light-emitting component can be partially irradiated to the light-reflecting surface of the first light-reflecting portion and the light-reflecting surface of the second light-reflecting portion.
As a preferred technical scheme of the light-emitting device, the light-reflecting cup further comprises a third light-reflecting portion, wherein the third light-reflecting portion is connected to the first ends of the first light-reflecting portion and the second light-reflecting portion, and the light-reflecting surface of the third light-reflecting portion is a concave arc surface.
As a preferable embodiment of the light-emitting device, the curvature of the light-reflecting surface of the third light-reflecting portion is larger than the curvature of the light-reflecting surface of the first light-reflecting portion.
As a preferable technical scheme of the light-emitting device, the light-reflecting surface of the first light-reflecting portion is a concave arc surface, and the curvature of the light-reflecting surface of the first light-reflecting portion is smaller than that of the light-reflecting surface of the second light-reflecting portion.
As a preferred technical solution of the light emitting device, the first light emitting component includes a first lamp panel and a plurality of first light emitting members, and the plurality of first light emitting members are disposed on the first lamp panel at intervals along the length direction of the first light reflecting portion;
the first lamp panel and the reflecting surface of the first reflecting part are arranged at an acute angle.
As a preferred technical scheme of the light-emitting device, the light-emitting mechanism further comprises a second light-emitting component which is arranged at the second end of the first light-reflecting portion, and the second light-emitting component comprises a second lamp panel and a plurality of second light-emitting pieces which are arranged at intervals along the length direction of the second lamp panel.
As a preferable technical scheme of the light-emitting device, the first lamp panel and the second lamp panel are both PCBs.
As a preferable technical scheme of the light-emitting device, the light-emitting device further comprises a shell, two light-transmitting openings are formed in the shell, the light-emitting mechanisms are arranged in the shell, and the two light-emitting mechanisms are respectively positioned at the two light-transmitting openings;
the light-emitting mechanism further comprises a light-transmitting component, and the light-transmitting component comprises a light-transmitting plate which is arranged on the light-transmitting opening.
As a preferred embodiment of the light-emitting device, the light-transmitting component further includes a honeycomb-shaped grating disposed at the light-transmitting opening.
In a second aspect, there is provided a luminaire comprising:
a lamp body;
the light-emitting device is arranged on the lamp body.
The invention has the beneficial effects that:
the light rays irradiated to the light reflecting surface of the first light reflecting part by the first light emitting component are reflected to the area below the light reflecting cup and outside the second light reflecting part; the light irradiated to the light reflecting surface of the second light reflecting part is reflected to the area which is close to the light reflecting cup and below the light reflecting cup; a part of light rays emitted by the first light-emitting component irradiates the area below and in front of the reflecting cup; most of the light rays emitted by the first light-emitting component are directly emitted or reflected to the area below and in front of the light-emitting mechanism, so that the light ray utilization rate is improved.
The first light-emitting component is arranged along the length direction of the reflecting cup, so that light can be uniformly irradiated onto the reflecting cup, and the light irradiated to the lower part and the front part of the reflecting cup is uniform. The first light-emitting component is arranged along the length direction of the light-reflecting cup and is reflected by the light-reflecting cup, so that light rays emitted by the light-emitting mechanism can be uniformly irradiated to the lower part and the front part of the light-emitting mechanism, the illumination intensity of the light rays emitted by the light-emitting mechanism is uniform and is relatively close to natural light, and visual fatigue is not easy to occur to people. The two light-emitting mechanisms are arranged at an included angle, so that the light rays emitted by the light-emitting mechanisms are crossed, the area between the two light-emitting mechanisms can be covered, the light rays emitted by the light-emitting device can cover the area right in front of the light-emitting device and the area right and left in front of the light-emitting device, the illumination intensity is relatively uniform, and visual fatigue is not easy to generate.
Drawings
Fig. 1 is a schematic structural diagram of a light emitting device according to the present invention;
fig. 2 is a schematic diagram of a light emitting device according to the second embodiment of the present invention;
FIG. 3 is a schematic diagram of a light emitting mechanism according to the present invention;
FIG. 4 is a schematic diagram of a part of a light emitting mechanism according to the present invention;
fig. 5 is a schematic diagram of a partial structure of a light emitting mechanism according to the present invention.
In the figure: 10. a light emitting mechanism; 1. a reflective cup; 11. a first light reflecting portion; 12. a second light reflecting portion; 13. a third reflection part; 2. a first light emitting component; 21. a first light emitting member; 22. a first lamp panel; 3. a second light emitting component; 31. a second light emitting member; 32. a second lamp panel; 4. a light transmission component; 41. a light-transmitting plate; 42. a grating;
20. a housing; 201. and a light transmission opening.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; either mechanically or electrically. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
As shown in fig. 1 to 5, the present embodiment discloses a light emitting device, which includes two spaced light emitting mechanisms 10 disposed at an angle.
The light emitting mechanism 10 comprises a light reflecting cup 1 and a first light emitting component 2, wherein the light reflecting cup 1 comprises a first light reflecting part 11 and a second light reflecting part 12 which are connected with each other, and the light reflecting surface of the second light reflecting part 12 is a concave cambered surface. The first light emitting component 2 is disposed on a side of the first light reflecting portion 11 away from the second light reflecting portion 12, and is disposed along a length direction of the first light reflecting portion 11, and a light portion emitted by the first light emitting component 2 can be irradiated to a light reflecting surface of the first light reflecting portion 11 and a light reflecting surface of the second light reflecting portion 12. The second light reflecting portion 12 and the first light emitting element 2 are disposed near both front and rear sides of the light emitting device, respectively.
The light irradiated to the light reflecting surface of the first light reflecting part 11 by the first light emitting component 2 is reflected to the area below the light reflecting cup 1 and outside the second light reflecting part 12; the light irradiated to the light reflecting surface of the second light reflecting portion 12 is reflected to a region closer to the light reflecting cup 1 and below the light reflecting cup 1; a part of the light emitted by the first light-emitting component 2 irradiates the area below and in front of the reflector cup 1; most of the light emitted by the first light emitting component 2 is directly or reflected to the area below and in front of the light emitting mechanism 10, so that the light utilization rate is improved.
The first light-emitting component 2 is arranged along the length direction of the reflecting cup 1, so that light can be uniformly irradiated onto the reflecting cup 1, and the light irradiated to the lower part and the front part of the reflecting cup 1 is relatively uniform. The first light-emitting component 2 is arranged along the length direction of the light-reflecting cup 1 and is reflected by the light-reflecting cup 1, so that the light emitted by the light-emitting mechanism 10 can be uniformly irradiated to the area below and in front of the light-emitting mechanism 10, the illumination intensity of the light emitted by the light-emitting mechanism 10 is relatively uniform and relatively close to that of natural light, and visual fatigue is not easy to occur to people. The two light-emitting mechanisms 10 are arranged at an included angle, so that the light rays emitted by the light-emitting mechanisms 10 are crossed, the area between the two light-emitting mechanisms 10 can be covered, the light rays emitted by the light-emitting device can cover the area right in front of the light-emitting device and the area right in front of the light-emitting device, the illumination intensity is relatively uniform, and visual fatigue is not easy to generate.
Specifically, the angle between the two light emitting mechanisms 10 is obtuse, specifically 110 ° -150 °, and in this embodiment is preferably 140 °. The reflecting surface of the first reflecting part 11 is a concave cambered surface, and the curvature of the reflecting surface of the first reflecting part 11 is smaller and is similar to a plane shape; the curvature of the reflecting surface of the first reflecting portion 11 is smaller than that of the reflecting surface of the second reflecting portion 12, the curvature of the reflecting surface of the second reflecting portion 12 is larger, and an included angle of approximately 90 degrees is formed between one side of the second reflecting portion 12 away from the first reflecting portion 11 and the first reflecting portion 11.
The first light emitting assembly 2 includes a first lamp panel 22 and a plurality of first light emitting members 21, and the plurality of first light emitting members 21 are disposed on the first lamp panel 22 at intervals along a length direction of the first lamp panel 22. The first lamp plate 22 is the PCB, and first luminous element 21 is the lamp pearl, specifically is RGBW/RGBWW lamp pearl, and the lamp pearl is integrated on first lamp plate 22, sets up the grafting connector on first lamp plate 22, and first lamp plate 22 and power connection of being convenient for still can control luminance and colour etc. of lamp pearl through first lamp plate 22. The first lamp panel 22 is disposed at an acute angle with respect to the light reflecting surface of the first light reflecting portion 11, so that most of the light emitted by the first light emitting element 21 irradiates the light reflecting surfaces of the first light reflecting portion 11 and the second light reflecting portion 12, and preferably, in this embodiment, the first lamp panel 22 forms an included angle of 60 ° with respect to the light reflecting surface of the first light reflecting portion 11.
The light reflecting cup 1 further comprises a third light reflecting portion 13, the third light reflecting portion 13 is connected to the first ends of the first light reflecting portion 11 and the second light reflecting portion 12, the third light reflecting portion 13 is located at one end, away from each other, of the two light reflecting cups 1, the light reflecting surface of the third light reflecting portion 13 is a concave arc surface, and the curvature of the light reflecting surface of the third light reflecting portion 13 is larger than that of the light reflecting surface of the first light reflecting portion 11. The third reflecting portion 13 has an angle of approximately 90 ° with the first reflecting portion 11 on a side away from the first reflecting portion 11, and has a curvature difference from that of the second reflecting portion 12.
The light irradiated to the reflecting surface of the third reflecting portion 13 is reflected to the region near the first end of the reflecting cup 1, so that the illumination intensity near the end of the reflecting cup 1 is almost equal to that in the middle region, and the phenomenon of dim edge is avoided.
The light emitting mechanism 10 further includes a second light emitting component 3 disposed at a second end of the first light reflecting portion 11, where the second light emitting component 3 includes a second light panel 32 and a plurality of second light emitting members 31 disposed at intervals along a length direction of the second light panel 32. The second lamp panel 32 is a PCB, the second luminous element 31 is a lamp bead, specifically an RGBW/RGBWW lamp bead, the lamp bead is integrated on the second lamp panel 32, and a plug connector is arranged on the second lamp panel 32, so that the second lamp panel 32 is convenient to connect with a power supply; the brightness, color, etc. of the lamp beads can also be controlled by the second lamp panel 32. The second lamp panel 32 is perpendicular to the reflective surface of the second reflective portion 12, so that most of the light emitted by the second light emitting element 31 irradiates the reflective surfaces of the first reflective portion 11, the second reflective portion 12 and the third reflective portion 13, and the light utilization rate is improved.
The light irradiated onto the second light reflecting portion 12 by the second light emitting component 3 is reflected to the first end of the light reflecting cup, the two light emitting mechanisms 10 are arranged at an included angle, so that the light emitted by the light emitting mechanisms 10 is crossed, the illumination brightness of the middle crossed region (i.e. the position right in front of the light emitting device) is higher than that of the two sides, i.e. the illumination intensity of the main used region is slightly higher, but the light emitted by the second light emitting component 3 can be irradiated to the non-crossed region, and the illumination intensity of the region illuminated by the light emitting device is relatively uniform.
Preferably the lighting device further comprises a housing 20, and the lighting mechanism 10 further comprises a light transmissive component 4. The shell 20 is provided with two light-transmitting openings 201, the light-emitting mechanism 10 is arranged in the shell 20, and the two light-emitting mechanisms 10 are respectively positioned at the two light-transmitting openings 201. The light of the light emitting mechanism 10 can be emitted through the light transmitting opening 201 for illumination.
The light-transmitting component 4 comprises a light-transmitting plate 41 and a honeycomb-shaped grating 42, wherein the light-transmitting plate 41 is arranged on the light-transmitting opening 201 to block the light-transmitting opening 201, and can be fixed on the shell 20 in a bonding or clamping manner. The light-transmitting plate 41 prevents dust from entering the housing 20 and protects the reflector cup 1, the first light-emitting assembly 2 and the second light-emitting assembly 3 from contamination and damage. The grating 42 is disposed at the light-transmitting opening 201, specifically, may be disposed inside or outside the light-transmitting plate 41, may be fixed to the light-transmitting plate 41 by bonding, or may be integrally formed with the light-transmitting plate 41. The grating 42 can shield a part of light, improve the softness of the light, and avoid the light from being too strong and dazzling.
The embodiment also discloses a lamp, which comprises a lamp body and the light-emitting device, wherein the light-emitting device is arranged on the lamp body. The lamp can be a desk lamp, a floor lamp or a ceiling lamp.
The desk lamp using the light-emitting device irradiates light to the desktop in front of the desk lamp, is mainly concentrated at the position in front of the desk lamp, has uniform illumination brightness, and is not easy to generate visual fatigue no matter study or work of a user.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (7)
1. A lighting device, characterized by comprising two spaced apart lighting means (10) arranged at an angle, said lighting means (10) comprising:
the light reflecting cup (1) comprises a first light reflecting part (11) and a second light reflecting part (12) which are connected with each other, wherein the light reflecting surface of the second light reflecting part (12) is a concave cambered surface;
a first light emitting component (2) which is arranged on one side of a first light reflecting part (11) far away from the second light reflecting part (12) and is arranged along the length direction of the first light reflecting part (11), wherein the light rays emitted by the first light emitting component (2) can be partially irradiated to the light reflecting surface of the first light reflecting part (11) and the light reflecting surface of the second light reflecting part (12);
the light reflecting cup (1) further comprises a third light reflecting portion (13), the third light reflecting portion (13) is connected to the first ends of the first light reflecting portion (11) and the second light reflecting portion (12), and a light reflecting surface of the third light reflecting portion (13) is a concave arc surface;
the curvature of the reflecting surface of the third reflecting part (13) is larger than that of the reflecting surface of the first reflecting part (11);
the light reflecting surface of the first light reflecting part (11) is a concave cambered surface, and the curvature of the light reflecting surface of the first light reflecting part (11) is smaller than that of the light reflecting surface of the second light reflecting part (12).
2. The light emitting device according to claim 1, wherein the first light emitting assembly (2) includes a first lamp panel (22) and a plurality of first light emitting members (21), the plurality of first light emitting members (21) being disposed on the first lamp panel (22) at intervals along a length direction of the first light reflecting portion (11);
the first lamp panel (22) and the reflecting surface of the first reflecting part (11) are arranged at an acute angle.
3. The lighting device according to claim 2, wherein the lighting mechanism (10) further comprises a second lighting assembly (3) disposed at the second end of the first light reflecting portion (11), and the second lighting assembly (3) comprises a second lamp panel (32) and a plurality of second lighting members (31) disposed at intervals along the length direction of the second lamp panel (32).
4. A light emitting device according to claim 3, wherein the first and second light panels (22, 32) are each PCBs.
5. The light-emitting device according to claim 1, further comprising a housing (20), wherein two light-transmitting openings (201) are formed in the housing (20), the light-emitting mechanism (10) is disposed in the housing (20), and the two light-emitting mechanisms (10) are respectively located at the two light-transmitting openings (201);
the light emitting mechanism (10) further comprises a light transmitting component (4), and the light transmitting component (4) comprises a light transmitting plate (41) arranged on the light transmitting opening (201).
6. The light emitting device according to claim 5, characterized in that the light transmitting member (4) further comprises a honeycomb-shaped grating (42) arranged at the light transmitting opening (201).
7. A light fixture, comprising:
a lamp body;
the light emitting device of any one of claims 1-6, disposed on the luminaire body.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110247318.XA CN115013756B (en) | 2021-03-05 | 2021-03-05 | Light-emitting device and lamp |
| PCT/CN2022/077385 WO2022183947A1 (en) | 2021-03-05 | 2022-02-23 | Light-emitting device and lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110247318.XA CN115013756B (en) | 2021-03-05 | 2021-03-05 | Light-emitting device and lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115013756A CN115013756A (en) | 2022-09-06 |
| CN115013756B true CN115013756B (en) | 2023-07-21 |
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ID=83064944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110247318.XA Active CN115013756B (en) | 2021-03-05 | 2021-03-05 | Light-emitting device and lamp |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115013756B (en) |
| WO (1) | WO2022183947A1 (en) |
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| CN105065978A (en) * | 2015-07-23 | 2015-11-18 | 漳州立达信光电子科技有限公司 | Reflecting type blackboard lamp |
| CN207555293U (en) * | 2017-12-19 | 2018-06-29 | 厦门捷能通光电科技有限公司 | A kind of light fixture and desk lamp |
| CN211010917U (en) * | 2019-11-28 | 2020-07-14 | 深圳市豪恩智能物联股份有限公司 | Desk lamp |
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| Publication number | Publication date |
|---|---|
| WO2022183947A1 (en) | 2022-09-09 |
| CN115013756A (en) | 2022-09-06 |
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