Ceramic phosphor plate and lighting device including the same

摘要

Provided is a ceramic phosphor plate (100 ; 200 ; 1200 ; 2200) including a first phosphor layer (110 ; 210) containing a short-wave phosphor (1210) in a transparent ceramic matrix and a second phosphor layer (120 ; 220) containing a long-wave phosphor (1220), thereby enabling the reduction of a production cost by reducing an amount used of the high-priced long-wave phosphor (1220) (red phosphor).