CHARGED POWDER SUPPLY DEVICE

摘要

A charged powder supply device is disclosed. A plurality of charged powder particles are disposed on an upper side of a carrier and at least an action source is positioned at a lower side 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, 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.

主权项

1. A charged powder supply device, comprising:
a carrier having opposite first and second sides, wherein a plurality of charged powder particles are disposed on the first side of the carrier; and at least an action source positioned at the second side of the carrier for acting on the carrier so as to vibrate the charged powder particles on the first side of the carrier, thereby causing the charged powder particles to leave the first side of the carrier.