Optics: image projectors – Distortion compensation – For projection axis inclined to screen
Reexamination Certificate
2005-11-08
2005-11-08
Dowling, William C. (Department: 2851)
Optics: image projectors
Distortion compensation
For projection axis inclined to screen
C353S101000, C353S085000
Reexamination Certificate
active
06962416
ABSTRACT:
This specification discloses a projection type display apparatus for projecting an image onto the surface of a screen, including an image display device illuminated by illuminating light from a light source and for displaying an image thereon, a projecting optical system for projecting the image from the image display device onto the surface of the screen, a condition detection device for detecting a condition related to the image, an adjusting device for adjusting the condition of the image in conformity with the output of the condition detection device, an operation device for effecting the ON/OFF of the power source of the projection type display apparatus, and a controller for causing the condition detection device to be operated and also, limiting the inputting of an input image signal to the image display device when the power source of the projection type display apparatus is switched on by the operation device.
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Dowling William C.
Morgan & Finnegan L.L.P.
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