LED writing board lamp

Abstract

The invention relates to an LED writing board lamp. The LED writing board lamp comprises a lamp body shell, and is characterized in that a wide grading lamp strip and a narrow grading lamp strip are mounted on the lamp body shell; the narrow grading lamp strip is mounted on the side near an irradiated surface; the horizontal mounting height of the narrow grading lamp strip is larger than the horizontal mounting height of the wide grading lamp strip; the narrow grading lamp strip adopts symmetrical narrow grading; the wide grading lamp strip is mounted on the side far from the irradiated surface; a light shielding structure is arranged on the side, far from a light emitting surface of the lamp body shell, of the wide grading lamp strip; and the wide grading lamp strip adopts asymmetrical wide grading. The LED writing board lamp can improve the uniformity of light rays on a writing board, and meanwhile, prevents the glare influence.

Description

technical field [0001] The invention relates to an LED writing board lamp, which belongs to the technical field of LED lighting. Background technique [0002] The writing board plays a very important role in the teaching activities in the classroom. Most of the primary and secondary schools and universities now mainly focus on writing on the blackboard. Therefore, a good writing board light or writing board lighting design is particularly important. However, if the light uniformity or illumination of the writing board light on the writing board is not enough, it will not only affect the teaching effect, but also cause serious damage to the vision of young students. harm. In view of this situation, the light intensity distribution of the writing board lamp and the installation position of the writing board lamp will be particularly important. [0003] Most of the traditional writing board lamps use fluorescent tubes, add a light distribution lampshade, emit light through th...

AI Technical Summary

Problems solved by technology

[0003] Most of the traditional writing board lamps use fluorescent tubes, add a light distribution lampshade, emit light through the lamp tube at 360 degrees, and then reflect the light to the writing board through the reflector, which can realize the partial light distribution structure to a certain extent, but because there is no accurate calculation There is also a considerable proportion of light waste at the angle of the outgoing light, and the uniformity of the light distribution is not ideal

At present, some manufacturers on the market use LED lamp beads to solve the problem of uniformity of illumination on the writing board by designing corresponding polarized lenses, but due to various restrictions, it is difficult to achieve ideal uniformity.

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