Optics: image projectors – Lamp control
Reexamination Certificate
2011-07-12
2011-07-12
Epps, Georgia (Department: 2878)
Optics: image projectors
Lamp control
C362S285000
Reexamination Certificate
active
07976173
ABSTRACT:
Disclosed herein is a projector for projecting an image to a screen, including: a lamp configured to emit light; an elliptic reflecting mirror configured to reflect and condense the light from the lamp; an image display device configured to modulate the light reflected and condensed by the elliptic reflecting mirror with image data corresponding to the image to convert the reflected light into image light; a projection lens disposed between the screen and the image display device and configured to project the image light from the image display device to the screen; and a position adjustment mechanism configured to displace the bright point of the lamp from a first focus of the elliptic reflecting mirror to adjust the position of the lamp so as to decrease the effective light amount of the image display device.
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Morikawa Hiroyasu
Oka Daizo
Shirasu Toshiyuki
Epps Georgia
Howard Ryan
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Sony Corporation
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