Star filter is one of camera filters, as the center of light emitting, include 2 lines, 4 lines, 6 lines, 8 lines, 16 lines...Star filters turn point light ...
IR-CUT Filter is the key part for digital mobile telephone with photographic lens, PC cameras,telephone with image etc. It's mainly is that the optical glass' surface will ...
DW-AA4530F Atomic Absorption Spectrophotometer CHARACTERISTICS1. Completely controlled by PC, can flexibly select the flame and graphite furnace atomizer (o...