Direct type panel lamp capable of emitting light uniformly

• Main Authors: ZHAO YIJIAO, GU YONGBO, ZHANG JUNYU, GAN CAIYING, PU JIZHONG
• Format: Patent
• Language: Chinese; English
• Published: 07.12.2021
• Subjects: BLASTING; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED; LIGHTING; MECHANICAL ENGINEERING; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; WEAPONS

The utility model discloses a direct type panel lamp capable of emitting light evenly. The direct type panel lamp comprises a frame, a diffusion plate, a back plate and at least one lamp strip. The central area of the back plate is raised to form a cavity for accommodating the light bars, the cavity comprises a flat bottom wall and an inclined side wall, and the light bars are fixed on the bottom wall; the diffusion plate is arranged opposite to the back plate to seal the cavity; the frame is formed by splicing a plurality of frame strips, and each frame strip is connected with the corresponding edge of the diffusion plate and the corresponding edge of the back plate; each light bar comprises a substrate and a plurality of LED lamp beads installed on the substrate, the LED lamp beads are sequentially arranged in the length direction of the light bar, the distance between every two adjacent LED lamp beads located at the two ends of the light bar is L1, the distance between the other two adjacent LED lamp beads