Blackboard lamp capable of being seen directly

Abstract

The utility model discloses a direct-view blackboard lamp which comprises a lamp shell, a light source plate, a light reflecting piece and a diffusion plate. The light source plate, the light reflecting piece and the diffusion plate are located in the lamp shell. A light reflecting part, a mounting part and a light emitting part are arranged in the lamp shell, the mounting part and the light reflecting part are located below the light reflecting part, the mounting part and the light reflecting part are oppositely arranged, the light reflecting part and the light emitting part are oppositely arranged, and an included angle is formed between the mounting part and the light emitting part; the light source plate is located on the installation part, the light reflection part is covered with the light reflection piece, the light emitting part is covered with the diffusion plate, the light source plate is located on the installation part, and the light source plate faces the light reflection part so that light rays of the light source plate can be refracted to the diffusion plate through the light reflection piece to be emitted. The utility model has the advantages of preventing strong light from stimulating human eyes and ensuring the teaching effect.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting equipment, in particular to a direct-view blackboard lamp. Background Art

[0002] In the prior art, blackboard lamps are mainly composed of a light source, a lens, a reflective structure and an anti-glare structure. The light source board body is a strip-shaped LED light source, and the reflective device is used to reflect the light emitted by the light source board body to a specified surface at a certain angle to achieve a lighting effect.

[0003] However, although the existing blackboard lamps generally use the reflection principle to make the light shine more evenly on the blackboard surface, and the average illumination and illumination uniformity have reached the national standards, there are still many problems. For example, the light source can be seen from the front; it is very dazzling when looking directly at the blackboard lamp during use, and the blackboard lamp has no anti-blue light effect, there is a blue light hazard, and long-term use may cause teachers to develop eye diseases such as myopia, affecting the physical and mental health of teachers and students in the school. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a blackboard lamp capable of being viewed directly, which can avoid strong light irritating human eyes and ensure the teaching effect.

[0005] In order to solve the above technical problems, the utility model provides a direct-view blackboard lamp, comprising a lamp housing, and a light source board, a reflector and a diffusion plate located in the lamp housing;

[0006] The lamp housing is provided with a reflective portion, and a mounting portion and a light emitting portion located below the reflective portion, the mounting portion and the reflective portion are arranged opposite to each other, and the reflective portion and the light emitting portion are arranged opposite to each other, and the mounting portion and the light emitting portion are arranged at an angle to each other;

[0007] The reflective sheet covers the reflective portion, the diffuser covers the light emitting portion, the light source board is located on the mounting portion, and the light source board faces the reflective portion, so that the light of the light source board is refracted through the reflective sheet to the diffuser for emitting light.

[0008] Preferably, the diffusion plate is a micro-prismatic plate.

[0009] Preferably, the reflective portion is an arc-shaped structure, and the reflective sheet is an arc-shaped reflective sheet.

[0010] Preferably, the mounting portion is provided with a mounting groove with a notch facing the reflective portion, and the light source board is located in the mounting groove.

[0011] Preferably, the directly viewable blackboard lamp further comprises a lampshade, the lampshade is sleeved on the light source board, and an outer wall of the lampshade is provided with an arc-shaped polarizing segment along the length direction.

[0012] Preferably, a light-transmitting groove is provided in the lampshade, the light-transmitting groove is communicated with the mounting groove, and the light-transmitting groove is provided with a diffusion surface parallel to the light source board.

[0013] Preferably, the mounting portion is provided with a first clamping groove opposite to the notch, and the lampshade is provided with a raised section along the length, and the raised section is clamped in the first clamping groove.

[0014] Preferably, the reflective portion is provided with a second slot opposite to the notch, the light emitting portion is provided with a third slot opposite to the notch, the reflective sheet is stuck in the second slot, and the diffuser plate is stuck in the third slot.

[0015] The implementation of this utility model has the following beneficial effects:

[0016] The utility model directs the light source board toward the reflective sheet and refracts the light from the light source board through the reflective sheet to the diffusion plate to emit light, so as to avoid the light source board emitting light directly outward. Therefore, when the light source board is directly observed by human eyes, it will not cause a dazzling and uncomfortable effect, and the illumination of the blackboard will be more uniform, thereby ensuring the teaching effect.

[0017] Specifically, a reflective portion, and a mounting portion and a light emitting portion located below the reflective portion are provided in the lamp housing, the mounting portion and the reflective portion are arranged opposite to each other, and the reflective portion and the light emitting portion are arranged opposite to each other, and the mounting portion and the light emitting portion are arranged at an angle to each other;

[0018] Among them, the reflective sheet covers the reflective part, the diffuser plate covers the light emitting part, and the light source board is located on the mounting part, so as to avoid the light source board from emitting light directly, and enable the light of the light source board to be reflected by the reflective sheet of the reflective part to the diffuser plate of the light emitting part, and mix the light through the diffuser plate to eliminate the blue light, so that the light is emitted more softly, so as to reduce the harm of blue light in the light to human eyes, and create a more comfortable and healthy light environment for indoor spaces such as classrooms.

[0019] At the same time, the lamp housing is used to block excess light from the light source, so that the light can only be emitted through the light outlet part, thereby reducing the impact of the extra light of the blackboard lamp on teachers and students during use, and further ensuring the teaching quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of one embodiment of a direct-view blackboard lamp of the utility model;

[0021] Figure 2 yes Figure 1 A cross-sectional view of a blackboard lamp that can be viewed directly is shown;

[0022] Figure 3It is a cross-sectional view of another embodiment of the direct-view blackboard lamp of the utility model. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail with reference to the accompanying drawings. It is hereby stated that the directional words such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the utility model are only based on the accompanying drawings of the utility model, and are not specific limitations of the utility model.

[0024] Combination Figures 1 to 3 , one embodiment of the utility model provides a direct-view blackboard lamp, comprising a lamp housing 1, and a light source board 2, a reflector 3 and a diffuser 4 located in the lamp housing 1;

[0025] The utility model directs the light source board 2 toward the reflective sheet 3, and refracts the light of the light source board 2 through the reflective sheet 3 to the diffuser 4 to emit light, so as to avoid the light source board 2 emitting light directly outward. Therefore, when the human eye directly observes, it will not cause a dazzling and uncomfortable effect, and the illumination of the blackboard will be more uniform, thereby ensuring the teaching effect.

[0026] Specifically, the lamp housing 1 is provided with a reflective portion 11, and a mounting portion 12 and a light emitting portion 13 located below the reflective portion 11, the mounting portion 12 and the reflective portion 11 are arranged opposite to each other, and the reflective portion 11 and the light emitting portion 13 are arranged opposite to each other, and the mounting portion 12 and the light emitting portion 13 are arranged at an angle to each other;

[0027] Among them, the reflective sheet 3 covers the reflective part 11, the diffuser plate 4 covers the light emitting part 13, and the light source board 2 is located on the mounting part 12, so as to avoid the light source board 2 from directly emitting light, and enable the light of the light source board 2 to be reflected through the reflective sheet 3 of the reflective part 11 to the diffuser plate 4 of the light emitting part 13, and mix the light through the diffuser plate 4 to eliminate the blue light, so that the light is emitted more softly, so as to reduce the harm of the blue light in the light to the human eye, and create a more comfortable and healthy light environment for indoor spaces such as classrooms.

[0028] At the same time, the lamp housing 1 blocks the excess light of the light source, so that the light can only be emitted through the light emitting portion 13, thereby reducing the impact of the extra light of the blackboard lamp on teachers and students during use, and further ensuring the teaching quality.

[0029] Preferably, the diffusion plate 4 is a micro-prismatic plate, which mixes light through unique patterns to soften the light and eliminate blue light.

[0030] More preferably, the reflective portion 11 is an arc-shaped structure, and the reflective sheet 3 is an arc-shaped reflective sheet, so that the light emitted by the light source board 2 is reflected by the reflective sheet 3 and then vertically irradiated on the diffuser plate 4, ensuring that the illumination of the blackboard is more uniform and improving the light utilization rate of the light source board 2.

[0031] On the other hand, combined again Figures 1 to 3 To ensure a stable structure, the mounting portion 12 is provided with a mounting groove 121 with a notch facing the reflective portion 11 , and the light source panel 2 is located in the mounting groove 121 to irradiate the reflective portion 11 .

[0032] Preferably, in order to play a protective and polarizing role, the direct-view blackboard lamp also includes a lampshade 5, which is mounted on the light source board 2, and the outer wall of the lampshade 5 is provided with an arc-shaped polarizing segment 51 along the length direction, so that the light from the light source board 2 is polarized by the arc-shaped polarizing segment 51 and then flatly irradiated on the reflective sheet 3 to improve the uniformity of light output.

[0033] Furthermore, a light-transmitting groove 52 is provided in the lampshade 5 , the light-transmitting groove 52 is communicated with the mounting groove 121 , and the light-transmitting groove 52 is provided with a diffusion surface 521 parallel to the light source board 2 , so that the light of the light source board 2 is diffused.

[0034] It should be noted that the light output angle of the light source board 2 is 120°. After being polarized by the lampshade 5, the light is evenly irradiated on the reflector 3 . While ensuring high brightness, the illumination on the surface of the reflector 3 is also made more uniform, thereby further improving the light utilization rate of the light source board 2 .

[0035] Preferably, the mounting portion 12 is provided with a first slot 122 opposite to the notch, and the lampshade 5 is provided with a raised section along the length, and the raised section is stuck in the first slot 122 to ensure a stable connection.

[0036] Preferably, combined with Figure 3 As another embodiment, the reflective portion 11 is provided with a second slot opposite to the slot, the light emitting portion 13 is provided with a third slot 131 opposite to the slot, the reflective sheet 3 is stuck in the second slot 111, and the diffuser plate 4 is stuck in the third slot 131.

[0037] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. A blackboard lamp capable of direct viewing, characterized in that: It includes a lamp housing, and a light source plate, a reflector and a diffuser plate located in the lamp housing; The lamp housing is provided with a reflective portion, and a mounting portion and a light emitting portion located below the reflective portion, the mounting portion and the reflective portion are arranged opposite to each other, and the reflective portion and the light emitting portion are arranged opposite to each other, and the mounting portion and the light emitting portion are arranged at an angle to each other; The reflective sheet covers the reflective portion, the diffuser covers the light emitting portion, the light source board is located on the mounting portion, and the light source board faces the reflective portion, so that the light of the light source board is refracted through the reflective sheet to the diffuser for emitting light.

2. The direct-view blackboard lamp according to claim 1, characterized in that: The diffusion plate is a micro-prismatic plate.

3. The direct-view blackboard lamp according to claim 1, characterized in that: The reflective portion is in an arc-shaped structure, and the reflective sheet is an arc-shaped reflective sheet.

4. The direct-view blackboard lamp according to claim 1, characterized in that: The mounting portion is provided with a mounting groove with a notch facing the reflective portion, and the light source board is located in the mounting groove.

5. The direct-view blackboard lamp according to claim 4, characterized in that: The directly visible blackboard lamp also includes a lampshade, which is sleeved on the light source board, and an outer wall of the lampshade is provided with an arc-shaped polarizing segment along the length direction.

6. The direct-view blackboard lamp according to claim 5, characterized in that: A light-transmitting groove is arranged in the lampshade, the light-transmitting groove is communicated with the mounting groove, and the light-transmitting groove is provided with a diffusion surface parallel to the light source board.

7. The direct-view blackboard lamp according to claim 6, characterized in that: The mounting portion is provided with a first clamping groove opposite to the notch, and the lampshade is provided with a convex section along the length, and the convex section is clamped in the first clamping groove.

8. The direct-view blackboard lamp according to claim 1, characterized in that: The reflective portion is provided with a second slot opposite to the notch, the light emitting portion is provided with a third slot opposite to the notch, the reflective sheet is stuck in the second slot, and the diffuser is stuck in the third slot.

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