Television – Video display – Projection device
Reexamination Certificate
2005-05-17
2005-05-17
Lee, Michael H. (Department: 2614)
Television
Video display
Projection device
C348S750000, C353S031000
Reexamination Certificate
active
06894729
ABSTRACT:
An optical projection apparatus includes an optical lighting system provided with a polarized beam splitter for polarizing white light flux from a white light source and combining the white light flux with other light fluxes, thereby taking out a predetermined polarized wave; a multi-lens array consisting of a plurality of lens elements; and an irradiator for separating the white light flux into three primary color light fluxes of red, green, and blue and irradiating each of the three color light fluxes on the same display element at an angle different from the others; and a projecting lens unit used for projecting the three primary color light fluxes modulated by the display element. Color light fluxes modulated by the display element are separated in a horizontal direction of the screen of the display element when passing an injection pupil of the projection lens unit.
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Hirata Koji
Ikeda Hidehiro
Ogura Naoyuki
Yatsu Masahiko
Hitachi , Ltd.
Lee Michael H.
Natnael Paulos M.
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