Image projection apparatus

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United States of America Patent

PATENT NO 9897820
SERIAL NO

15206962

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Abstract

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An image projection apparatus includes an optical modulation element, a lighting optical unit, a projection unit, and a shifting unit. The optical modulation element generates an image from light emitted from a light source. The lighting optical unit is configured to guide the light emitted from the light source to the optical modulation element. The projection unit projects the image generated by the optical modulation element. The shifting unit relatively shifts the optical modulation element with respect to the lighting optical unit. The shifting unit also generates driving forces to shift the optical modulation element, respectively, in a vertical direction, in a direction of being inclined by a first angle less than 90 degrees with respect to the vertical direction, and in a direction of being inclined by a second angle less than 90 degrees in an opposite side of the first angle.

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Patent Owner(s)

  • RICOH COMPANY, LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mikawa, Akihisa Kanagawa, JP 47 178

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