PANEL LIGHT DEVICE

• Main Authors: LIU, Guanyinlian, GONG, Guangquan, ZHANG, Jiansheng
• Format: Patent
• Language: English; French; German
• Published: 18.03.2020
• 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; NON-PORTABLE LIGHTING DEVICES; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

A panel light device includes a back plate (1), a light emitting assembly (2) and a face frame (3) provided with a light emitting opening, which are sequentially disposed from top to bottom; the face frame (3) includes a frame body (4) and a rim section (5) disposed at an inner side of the frame body (4), one end of the rim section (5) is connected with the frame body (4), and the other end is a free end; the light emitting assembly (2) abuts against the rim section (5), and the light emitting assembly (2) includes a light source plate (21) disposed at the inner side of the frame body (4) with a plurality of LED beads (22) being disposed on the light source plate (21) in a lateral way; at least two color temperatures are provided by the plurality of LED beads (22), and the LED beads (22) of a same color temperature being arranged at intervals, where a distance from the LED beads (22) to the free end of the rim section (5) is A, and a distance between the centers of two adjacent LED beads (22) of the same color temperature is P, then a ratio of A/P≧1.2. In the present application, when the width of the face frame (3) is constant or slightly changed, through reducing the width of the frame body (4) and relatively extending the width of the rim section (5), the light emitting area can remain unchanged or not significantly reduced, when the lamp shadow phenomenon of the panel light device is weaken.