| 摘要 |
A fluorescent panel lamp having substantially uniform brightness over its face, and wherein the discharge channel is molded in both faceplate and backplate. Uniform brightness is achieved by making the gaps or slots between parallel channels narrow and deep in order to have multiple light reflections which raise the brightness within the slots approximately to that of the channels. A slot depth at least 1.2 times the slot width wherein the channel walls on each side do not depart from vertical by more than 10 DEG is required. A lamp having eight channels within a nominal 12 inch size provides more light and operates more efficiently on lower current at higher wattage.
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