摘要:
A highly safe fluorescent lamp is disclosed, in a mixed layer having couplings of phosphors and a metal oxide such as yttrium oxide is formed on the inner surface of a glass bulb. The couplings of the mixed layer strongly couples the grains arranged in crosslinked state between the phosphor grains of the phosphor material. A first thin film of the metal oxide is formed between the glass bulb and the mixed layer. A second thin film of the same metal oxide is formed on the inner surface of the mixed layer nearer to the bulb center. The amount of mercury sealed in the glass bulb thus is reduced, thereby minimizing the mercury consumption which has so far been the problem against environmental protection.
摘要:
A sheet sorting device having a plurality of bin trays has a resilient member for imparting to a bin tray support member a force in the direction opposite to the direction of gravity and reducing a load applied to a bin tray drive source. A detecting device for stopping the driving of the drive source detects the movement of the drive source when the drive source moves up or down relative to the bin trays. A cam member has two lead portions, smooths the movement of the bin group and makes the amount of opening between the bins always constant.