Light scattering angle limiter and its method and projecting image displaying appts.

Application Number: 00108680
Application Date: 2000.05.18
Publication Number: 1274093
Publication Date: 2000.11.22
Priority Information: 1999/5/18 JP 136677/99
International: G02B27/18;G02F1/136
Applicant(s) Name: Sony Corp.
Inventor(s) Name: Kanatani Midori
Patent Agency Code: 72001
Patent Agent: zhang zhicheng
Abstract Disclosed is a light divergence angle limiting apparatus for improving color purity and displaying a high-quality image by blocking unnecessary color rays except for a predetermined color ray. A divergence angle of at least one of a plurality of color rays is limited in consideration of light emission characteristics of a light source so that color rays (for example, B and G rays) different from a predetermined color ray (for example, R ray) do not enter a pixel corresponding to the predetermined color ray by using a light blocking plate provided as a light divergence angle limiting apparatus.