LED blackboard lamp

A technology of LED blackboard light and LED light source, which is applied in the field of LED lighting, can solve the problems of illuminance attenuation, affecting vision, and low average illuminance on the surface of the blackboard, so as to prevent glare and improve utilization efficiency

Active Publication Date: 2016-02-24
LEELEDS LIGHTING XIAMEN
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional blackboard lamp generally only uses two fluorescent tubes, and the blackboard lamp is installed obliquely above the blackboard, and part of the light emitted by it is directly aimed at people's eyes, causing glare to affect people's vision, and the blackboard lamp is relatively close to the top of the blackboard , The distance from the bottom of the blackboard is far away, so that the illuminance on the surface of the blackboard gradually attenuates from top to bottom, and the average illuminance on the surface of the blackboard is low, which makes the existing blackboard lights have poor illuminance uniformity, poor direction controllability and light Disadvantages of low utilization

Method used

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Embodiment Construction

[0020] figure 1 It is a three-dimensional exploded view of the LED blackboard light of the first embodiment of the present invention. The LED blackboard light 100 is used to illuminate a blackboard or a wall 200, and includes an LED light source board 10 provided with an LED light source 11 and a shading cover 20. The shading cover 20 For the shell structure, the height of the shading cover 20 is higher than that of the blackboard or wall 200 to be irradiated. The blackboard or wall 200 can also be other walls, such as murals or handicrafts hanging on the wall.

[0021] Please refer to figure 1 , figure 2 , Figure 5 One end of the light shield 20 is arranged around the LED light source board 10, the other end of the light shield 20 is a light outlet 21, and the light outlet 21 is arranged toward the blackboard or wall 200, and the light shield 20 includes The inner board 22 arranged on one side of the body of wall 200 and the outer board 23 arranged on one side away from...

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Abstract

An LED blackboard is used for lighting a blackboard or a wall body and comprises an LED light source panel provided with an LED light source and a light shielding cover. The light shielding cover is of a shell structure, and the height of the light shielding cover is higher than that of the blackboard or the wall body to be lighted; one end of the light shielding cover is arranged at the periphery of the LED light source panel, a light outlet is formed in the other end of the light shielding cover, and the light outlet faces the blackboard or the wall body; the light shielding cover comprises an internal lateral plate close to one side of the blackboard or the wall body and an external lateral plate far from one side of the blackboard or the wall body; and the inner wall of the external lateral plate is used for reflecting light which emitted by the LED light source and under the blackboard or the wall body to the blackboard or the wall body. The LED blackboard lamp is high in light utilizing rate and can effectively avoid glare.

Description

technical field [0001] The invention relates to the field of LED lighting, in particular to an LED blackboard lamp. Background technique [0002] Blackboards are widely used in teaching activities and can be used for teachers to write teaching content. The application environment of the blackboard is very diverse. In some environments with poor lighting, the blackboard light will be used to increase the brightness of the blackboard. However, if the light illuminated by the blackboard light on the blackboard is uneven, it will affect the visual conditions of the blackboard content. , and easily cause the viewer's visual fatigue. In response to this situation, the blackboard lamp is required to have a better installation position, irradiation angle and reasonable light distribution method. A better blackboard lamp or lighting design is particularly important for the blackboard. The traditional blackboard lamp generally only uses two fluorescent tubes, and the blackboard lamp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/04F21V1/00F21Y115/10
CPCF21S8/043F21V1/00
Inventor 黄芳
Owner LEELEDS LIGHTING XIAMEN
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