REMOTE FLUORESCENT POWDER LENS AND MANUFACTURING METHOD AND APPLICATION THEREOF

摘要

Disclosed is a remote fluorescent powder lens, comprising a composite curved structure, wherein the composite curved structure is a composite body which has an approximately hemispherical housing (3) with a larger radius of curvature and an approximately hemispherical solid curved body (4) with a smaller radius of curvature, the cross section of the composite body being an approximate semicircle, and the approximately semicircular cross section of the housing (3) having the larger radius of curvature and that of the solid curved-surface body (4) having the smaller radius of curvature having a common circular centre, or is a composite body of a big remote fluorescent powder housing (3) having a square bottom surface and having a square umbrella type convex surface-shaped structure and a small solid curved body (4) having a square umbrella type convex surface-shaped structure, or is a composite body of a big remote fluorescent powder housing (3) having a rectangular bottom surface and having a deformed semi-cylinder-shaped structure and a small solid curved-surface body (4) having a deformed semi-cylinder-shaped structure.