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PROJECTION OPTICAL SYSTEM AND IMAGE PROJECTION DEVICE EMPLOYING THE SAME
PROJECTION OPTICAL SYSTEM AND IMAGE PROJECTION DEVICE EMPLOYING THE SAME
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机译:使用相同的投影光学系统和图像投影设备
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摘要
Provided is a projection optical system for an ultra-short focus image projection device. The disclosed projection optical system includes a first optical system for zooming an image formed by an image display device to form a first intermediate image, a second optical system for enlarging the first intermediate image to form a second intermediate image, and a reflection optical system for reflecting light which forms the second intermediate image. An optical axis of the first optical system translates parallel with respect to an optical axis of the second optical system in a direction perpendicular to the optical axis of the first optical system.
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