Patent ID: 7341676

Claim:
A method for manufacturing a silicate-containing phosphor precursor comprising the steps of: (a) supplying a suspension containing a colloidal silica into a first inlet flow passage with a first solution transporting means; (b) supplying a solution containing a metallic compound for forming a silicate-containing phosphor precursor into a second inlet flow passage with a second solution transporting means; (c) introducing the suspension and the solution into a contact section where said first and said second inlet flow passages meet so as to mix said suspension and said solution with each other and to form a silicate-containing phosphor precursor; and (d) releasing the silicate-containing phosphor precursor from an exit of an outlet flow passage connected to the contact section while controlling a flow of the silicate-containing phosphor precursor so as to keep a Reynolds number of the silicate-containing phosphor precursor to be 3×10 3 to 1×10 6 .