Anti-dazzle blackboard lamp with high illumination uniformity
The utility model discloses an anti-dazzle blackboard lamp with high illumination uniformity, belongs to the technical field of LED (light-emitting diode) illumination, and aims to solve the problem that the visual fatigue of students is serious due to poor illumination uniformity of the conventiona...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model discloses an anti-dazzle blackboard lamp with high illumination uniformity, belongs to the technical field of LED (light-emitting diode) illumination, and aims to solve the problem that the visual fatigue of students is serious due to poor illumination uniformity of the conventional blackboard lamp. The LED lamp comprises an arc-shaped closed shell, an ABS plug, a lens and an LED light source plate. A mounting part is arranged on the lower surface of the arc-shaped closed shell, an LED light source plate and a lens are sequentially mounted on the arc-shaped closed shell from top to bottom, and light emitted by the LED light source plate is output to the blackboard after passing through the lens; a shading part is arranged on the side, away from the blackboard, of the mounting part of the arc-shaped closed shell in the length direction, the lens comprises a lens body, the lens body is a single-face convex lens arranged in the length direction, a groove with an upward opening is formed in the |
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