Optics: image projectors – Composite projected image – Multicolor picture
Reexamination Certificate
2006-08-29
2006-08-29
Dowling, William C. (Department: 2851)
Optics: image projectors
Composite projected image
Multicolor picture
C353S020000, C349S007000, C348S743000
Reexamination Certificate
active
07097308
ABSTRACT:
A highly efficient projection system is provided, including a light source, a color separator, a scrolling unit, a light valve, a projection lens unit, and a polarization conversion system. The color separator separates an incident beam according to color. The scrolling unit includes at least one lens cell and converts a rotation of the lens cell into a rectilinear motion of an area of the lens cell through which light passes so the incident beam is scrolled. The light valve processes a beam transmitted by the color separator and the scrolling unit, according to an image signal and forms a color picture. The projection lens unit magnifies the color picture formed by the light valve and projects the magnified color picture onto a screen. The polarization conversion system is installed between the color separator and the light valve and converts the incident beam into a beam with a single polarization.
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Cho Kun-ho
Kim Dae-sik
Kim Sung-ha
Lee Hee-Joong
Dowling William C.
Samsung Electronics Co,. Ltd.
Sughrue & Mion, PLLC
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