Polarization translating system, lighting system and projector

Application Number: 00102628
Application Date: 2000.02.23
Publication Number: 1264841
Publication Date: 2000.08.30
Priority Information: 1999/2/23 JP 44669/99
International: G02B27/28;G02F1/133;H04N9/31
Applicant(s) Name: Seiko Epson Corp.
Inventor(s) Name: Ito Yoshitaka
Patent Agency Code: 72001
Patent Agent: chen ji
Abstract A polarization conversion system comprises a polarized light selective reflector that divides incident unpolarized light into first and second types of polarized light, transmits the first type of polarized light and reflects the second type of polarized light, a relay optical system that relays an incident light beam onto the polarized light selective reflector, a polarized light reflector, disposed on an optical path of a reflected light beam reflected by the polarized light selective reflector, that reflect the reflected light beam back to the polarized light selective reflector while converting the second type of polarized light to polarized light of the first type.