CN213513414U - Diffuse reflection low glare blackboard lamp - Google Patents
Diffuse reflection low glare blackboard lamp Download PDFInfo
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- CN213513414U CN213513414U CN202022510944.7U CN202022510944U CN213513414U CN 213513414 U CN213513414 U CN 213513414U CN 202022510944 U CN202022510944 U CN 202022510944U CN 213513414 U CN213513414 U CN 213513414U
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- blackboard
- blackboard lamp
- light
- diffuse reflection
- reflecting surface
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Abstract
The utility model relates to the technical field of blackboard lamps, in particular to a diffuse reflection low glare blackboard lamp, wherein a cavity for accommodating a light source is formed inside the blackboard lamp; the inner side wall of the cavity is a first reflecting surface, and the light source is arranged towards the first reflecting surface; and an opening for transmitting the reflected light is formed in the cavity and positioned on the light path channel of the reflected light. The problem of on the current blackboard lamp because be close to blackboard top setting, the blackboard surface that leads to from top to bottom light luminance darkens gradually, and the illuminance average value on blackboard surface is on the low side, and then arouse that illuminance homogeneity is poor, the direction controllability is not strong and light utilization rate is lower is solved.
Description
Technical Field
The utility model relates to a blackboard lamp technical field, in particular to diffuse reflection low glare blackboard lamp.
Background
The blackboard lamp is a lamp which is arranged right above the front of the blackboard, the distance between the top and the bottom of the blackboard irradiated by light is inconsistent, and the whole blackboard is ensured to have higher illumination and uniformity. The professional blackboard lamp adopts an asymmetric light distribution design, and light is uniformly projected on a blackboard surface, so that the condition that local contents of the blackboard are not clear due to reflection glare caused by local over-brightness of the blackboard is prevented.
The existing blackboard lamp generally uses two fluorescent lights, and the blackboard lamp is installed at the position above the blackboard in an inclined manner, and the blackboard lamp is closer to the blackboard top and farther from the blackboard bottom, so that the brightness of light on the surface of the blackboard from top to bottom is gradually darkened, and the average value of the illuminance on the surface of the blackboard is lower, so that the blackboard lamp has the problems of poor illuminance uniformity, poor direction controllability and low light utilization rate.
Therefore, the diffuse reflection low-glare blackboard lamp is produced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a utility model provides a diffuse reflection low glare blackboard lamp has mainly solved on the current blackboard lamp owing to be close to the blackboard top setting, and the blackboard surface that leads to is darkened gradually from top to bottom light luminance, and the illuminance average value on blackboard surface is on the low side, and then arouses that illuminance homogeneity is poor, the direction controllability is not strong and the problem that light utilization ratio is lower.
The utility model provides a diffuse reflection low glare blackboard lamp, wherein a cavity for accommodating a light source is formed inside the blackboard lamp; the inner side wall of the cavity is a first reflecting surface, and the light source is arranged towards the first reflecting surface; and an opening for transmitting the reflected light is formed in the cavity and positioned on the light path channel of the reflected light.
Preferably, an inclined surface for fixing the light source is formed in the cavity, and the light source is fixed to one end of the inclined surface close to the first reflecting surface.
Preferably, the cavity is provided with second reflecting surfaces close to the side walls of the two ends of the opening; the second reflecting surface reflects the reflected light from the first reflecting surface again and then the reflected light is transmitted out through the opening.
Preferably, the light source is a strip-shaped LED lamp strip, and the length direction of the LED lamp strip is parallel to the length direction of the blackboard lamp.
Preferably, a light-permeable protective cover is arranged at the opening.
Preferably, the first reflecting surface is an arc-shaped surface; the second reflecting surface is a plane.
Preferably, the upper top surface of the blackboard lamp is provided with a fixed hook matched with the external clamping structure.
Preferably, the upper top surface of the blackboard lamp is provided with two parallel grooves for fixing the fixing hook.
From the above, use the utility model provides a technical scheme can obtain following beneficial effect:
the utility model provides an in the blackboard lamp through shine to the blackboard surface again after the diffuse reflection with the light that the lamp strip sent, reduced blackboard lamp light dazzle luminosity, still reduced the inhomogeneous possibility of blackboard surface illuminance simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is an internal structure view of a blackboard lamp according to an embodiment of the present invention;
fig. 2 is an internal structure view of the blackboard lamp in the embodiment of the present invention.
Detailed Description
The technical solution in 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. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
Because be close to blackboard top setting on the current blackboard lamp, the light luminance on the blackboard surface that leads to from top to bottom darkens gradually, and the illuminance average value on blackboard surface is on the low side, and then arouses that illuminance homogeneity is poor, the direction controllability is not strong and the light utilization ratio is lower problem.
As shown in fig. 1 and 2, in order to solve the above problem, the present embodiment proposes a diffuse reflection low glare blackboard lamp, which has a cavity formed therein for accommodating a light source 10; the inner side wall of the cavity is a first reflecting surface 21, and the light source 10 is arranged towards the first reflecting surface 21; the cavity is also formed with an opening for the reflected light to pass through.
Preferably, but not limited to, the first reflecting surface 21 in the present embodiment is adhered to the inner side surface of the cavity by using a material having a reflecting function such as reflecting paper.
Preferably, but not limited to, the hollow cavity is located at the center of the blackboard lamp, and additional cavities are arranged at the left end and the right end of the cavity, so that the light source 10 can dissipate heat.
Preferably, but not limited to, the position of the opening in this embodiment is selected so that the light source 10 can be mostly transmitted out of the blackboard lamp through the opening via the first reflecting surface 21.
Preferably, the first reflecting surface 21 is an arc surface in the embodiment, and the light source 10 is disposed inside the arc surface; in this embodiment, if the position of the light source 10 is not located at the center of the arc surface, the light emitted from the light source 10 is unevenly distributed on the first reflecting surface 21, so that the first reflecting surface 21 provided with the arc surface can collect all reflected light, and the reflected light is concentrated in the opening and penetrates out, thereby ensuring that the light intensity of the blackboard lamp meets the user requirement.
More specifically, an inclined surface for fixing the light source 10 is formed in the cavity, and the light source 10 is fixed to an end of the inclined surface adjacent to the first reflection surface 21.
Preferably, but not limited to, the angle of the inclined surface is adjustable in this embodiment, and the inclined surfaces with different angles may cause the light source 10 to emit light with different angles and make the reflected light passing through the first reflecting surface 21 converge at different positions.
Preferably, but not limited to, the position of the light source 10 in the present embodiment can be adjusted on the inclined surface to change the angle of the light source 10 projected onto the first reflecting surface 21.
Preferably, but not limited to, the surface of the inclined surface in this embodiment also has a reflection function, so as to greatly ensure that the final reflection path of the light is the position of the opening.
More specifically, the cavity is provided with second reflecting surfaces 22 on the side walls of two ends close to the opening; the second reflecting surface 22 reflects the light reflected from the first reflecting surface 21 again and then passes through the opening.
Preferably, but not limited to, in this embodiment, the light emitted by the light source 10 cannot be totally directly emitted to the opening after being reflected by the first reflected light, and a part of the light is reflected to the second reflecting surface 22, so that the light is reflected to the second reflecting surface 22 again after being reflected again, or is reflected again and reflected again or repeatedly by the first reflecting surface 21, and then is emitted through the opening, thereby ensuring the utilization rate of the light.
Preferably, but not limited to, in the present embodiment, the second reflecting surface 22 has a sheet structure with a material having a reflecting function bonded to an inner side wall.
Preferably, but not limited to, the second reflecting surface 22 is a plane in the present embodiment.
Preferably, the light source 10 is a strip-shaped LED strip, and the length direction of the LED strip is parallel to the length direction of the blackboard lamp.
Preferably, but not limited to, the present embodiment may also adopt a mode of uniformly distributing a plurality of LED bulbs, as long as a uniform light source 10 can be provided.
Preferably but not the restrictive one, the quantity of LED lamp area is not limited in this embodiment, can adopt a plurality of LED lamp areas end to arrange and form, also can adopt a plurality of LED lamp areas parallel arrangement to form.
Preferably, a light-permeable shield 30 is provided at the opening.
In this embodiment, the protection cover 30 is fixed in a detachable manner, for example, a slot for slidably mounting the protection cover 30 is provided, and a rotation structure for turning the protection cover 30 may also be provided, where the detachable structure is not specifically limited.
Preferably, the upper top surface of the blackboard lamp is provided with a fixing hook 40 which is matched with the external clamping structure.
Preferably, the upper top surface of the blackboard lamp is provided with two parallel grooves for fixing the fixing hooks 40.
In the present embodiment, the fixing hook 40 is provided for fixing the position of the blackboard lamp, and is generally suspended in front of the blackboard. Therefore, the position of the upper protective cover 30 of the blackboard lamp should be inclined towards the left lower side, so that the light rays emitted by the light source 10 can be irradiated to the blackboard at the left lower side, and the normal execution of the functions of the blackboard lamp is ensured.
In summary, the embodiment provides the diffuse reflection low glare blackboard lamp, which mainly includes a reflection mechanism disposed in the blackboard lamp, so that light emitted from the light source is reflected and then projected onto the blackboard, thereby reducing the glare degree of the light emitted from the blackboard lamp and ensuring that the light is uniform on each part of the blackboard lamp.
The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.
Claims (8)
1. Diffuse reflection low glare blackboard lamp, its characterized in that: a cavity for accommodating the light source is formed inside the blackboard lamp; the inner side wall of the cavity is a first reflecting surface, and the light source is arranged towards the first reflecting surface; and an opening for transmitting the reflected light is formed in the cavity and positioned on the light path channel of the reflected light.
2. The diffuse reflection low glare blackboard lamp according to claim 1, wherein: an inclined surface used for fixing the light source is formed in the cavity, and the light source is fixed to one end, close to the first reflecting surface, of the inclined surface.
3. The diffuse reflection low glare blackboard lamp according to claim 2, wherein: the side walls of the two ends of the cavity close to the opening are provided with second reflecting surfaces; the second reflecting surface reflects the reflected light from the first reflecting surface again and then the reflected light is transmitted out through the opening.
4. The diffuse reflection low glare blackboard lamp according to claim 3, wherein: the light source is a strip-shaped LED lamp strip, and the length direction of the LED lamp strip is parallel to the length direction of the blackboard lamp.
5. The diffuse reflection low glare blackboard lamp according to claim 4, wherein: the opening part is provided with a light-permeable protective cover.
6. The diffuse reflection low glare blackboard lamp according to claim 5, wherein: the first reflecting surface is an arc surface; the second reflecting surface is a plane.
7. The diffuse reflection low glare blackboard lamp according to claim 6, wherein: the upper top surface of the blackboard lamp is provided with a fixed hook matched with the external clamping structure.
8. The diffuse reflection low glare blackboard lamp according to claim 7, wherein: the upper top surface of the blackboard lamp is provided with two parallel grooves for fixing the fixing hooks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022510944.7U CN213513414U (en) | 2020-11-03 | 2020-11-03 | Diffuse reflection low glare blackboard lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022510944.7U CN213513414U (en) | 2020-11-03 | 2020-11-03 | Diffuse reflection low glare blackboard lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213513414U true CN213513414U (en) | 2021-06-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022510944.7U Active CN213513414U (en) | 2020-11-03 | 2020-11-03 | Diffuse reflection low glare blackboard lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213513414U (en) |
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2020
- 2020-11-03 CN CN202022510944.7U patent/CN213513414U/en active Active
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