Anti-dazzling blackboard lamp

Abstract

The invention discloses an anti-dazzling blackboard lamp, relates to the technical field of a blackboard lamp and solves the technical problems that a light ray projection region of the blackboard lamp is difficult to regulate, the illuminance uniformity is poor, the blackboard lamp cannot adapt to the site installation environment, and the like. The anti-dazzling blackboard lamp is characterizedby comprising a lamp housing, an LED light source assembly, a total internal reflection TIR lens, a driver and end covers, wherein an accommodating groove in the length direction of the lamp housing is formed in the lamp housing; the LED light source assembly is arranged in the accommodating groove; the total internal reflection TIR lens is arranged in a position of a notch of the accommodating groove; the anti-dazzling blackboard lamp also comprises a light barrier; one long edge side of the light barrier is rotationally connected with one side, far away from a blackboard, of the notch of theaccommodating groove; and the light barrier is positioned under the total internal reflection TIR lens. The anti-dazzling blackboard lamp has the advantages that the light ray projection region of the blackboard lamp can be conveniently regulated, the blackboard surface illuminance uniformity is improved, and the like.

Description

technical field [0001] The present invention relates to the technical field of blackboard lamps, more specifically, it relates to an anti-glare blackboard lamp. Background technique [0002] The blackboard is the most commonly used prop in daily teaching activities and display activities. The blackboard itself does not emit light, it needs to reflect the light from the environment and lamps and then be perceived by human eyes. The application environment of the blackboard is diverse. When the ambient light is not good, it is necessary to use the blackboard light to compensate, and the optical design of the blackboard light directly affects the illuminance and uniformity of the blackboard, and then affects the observation of the human eye. Moreover, the blackboard light mainly It is used in the teaching environment and mainly serves students and teachers. Students and teachers will watch the blackboard for a long time and frequently during the learning process, and are more ...

AI Technical Summary

Problems solved by technology

[0011] In the actual test and use of our company, we found that under the premise of ensuring the illuminance and uniformity of the blackboard surface, the ideal installation position of the general blackboard lamp is not less than 0.3m from the edge of the blackboard, and the horizontal distance from the blackboard is not higher than 0.4m. , in which, in order to prevent the teacher from looking directly at the light source of the blackboard lamp when looking up, generally an integrally formed light baffle (that is, an anti-glare board or a grille) is provided on the side of the lamp housing away from the blackboard to block the light from the blackboard lamp. The area is blocked, so that it is difficult for teachers to directly see the light source of the blackboard lamp when they look up, reducing the glare; however, in the actual installation process, it is limited by the installation environment and installation accuracy, and the height of the blackboards in each school and class , width and installation height are different, it is difficult to install the blackboard lamp according to the ideal design size to ensure the illumination and uniformity of the blackboard surface and anti-glare, and in the prior art, the current blackboard lamp is not adaptable to the installation environment. , it is difficult to ensure the illuminance and uniformity of the blackboard surface in each classroom, and the glare comfort of teachers is not considered. In addition, the construction workers are difficult to operate and there are great safety hazards, so it needs to be improved

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