Patent ID: 7656081

Claim:
An imaging device at least comprising: a phosphor layer arranged on a substrate; and an excitation device serving to apply an excitation energy to the phosphor layer based on image information; wherein the phosphor layer has a thickness of no greater than 40 μm and the phosphor layer at least partially comprises at least one phosphor having a composition represented by a chemical formula of: Y 2−x−y Ln x Sc y SiO 5 , wherein Ln is at least one element selected from Tb and Ce, and “x” and “y” are atomic ratios and satisfy the following conditions: 0<x≦1 and 0<y≦1; and wherein the at least one phosphor shows a strongest diffraction peak at a diffraction angle 2θ of 30.65° to 30.9° in X-ray diffraction.