| 摘要 |
A charged powder supply device (1) is disclosed. A plurality of charged powder particles (8) are disposed on an upper side (20a) of a carrier (20) and at least an action source (21) is positioned at a lower side (20b) of the carrier for acting on the carrier so as to vibrate the charged powder particles on the upper side of the carrier. As such, the vibrated charged powder particles are attached to objects to be coated (13), such as LEDs, under the effect of an electric field so as to form a powder layer, such as a phosphor layer. Since there are no other external forces that affect the moving direction of the charged powder particles, the powder layer can be uniformly formed on the objects. |
