ABSTRACT
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`A projection direction change device includes a mirror that reflects
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`light emitted from a projection lens unit of a projector, a mirror support
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`part that rotatably supports the mirror arounda first axis and a second
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`axis, a first drive part that rotary drives the mirror around the first
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`axis, and a second drive part that rotary drives the mirror around the
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`second axis. An intersecting point of the first and second axes is
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`positioned closer
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`to the projection lens unit
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`than a geometric
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`barycenter of the mirror is.
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