US 11,720,008 B2
Projector
Masatoshi Ito, Matsumoto (JP); Shinichi Wakabayashi, Suwa (JP); and Yoshiyuki Yanagisawa, Matsumoto (JP)
Assigned to SEIKO EPSON CORPORATION, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Mar. 18, 2022, as Appl. No. 17/698,571.
Claims priority of application No. 2021-045554 (JP), filed on Mar. 19, 2021.
Prior Publication US 2022/0299848 A1, Sep. 22, 2022
Int. Cl. G03B 21/14 (2006.01)
CPC G03B 21/145 (2013.01) 12 Claims
OG exemplary drawing
 
1. A projector comprising:
an illumination unit;
an image formation unit that modulates light outputted from the illumination unit to generate image light;
a projection optical unit that projects the image light outputted from the image formation unit;
an optical path changer that is provided between the image formation unit and the projection optical unit and changes an optical path of the image light outputted from the image formation unit;
a linkage frame that links the image formation unit and the projection optical unit to each other; and
a vibration absorbing member that absorbs vibration generated by the optical path changer and is interposed between the optical path changer and the linkage frame,
wherein the optical path changer includes a base member, an optical member on which the image light outputted from the image formation unit is incident, and a swing frame that supports the optical member and is swingably supported relative to the base member by a swing axis,
the linkage frame has support surfaces, and
the vibration absorbing member has vibration absorbing surfaces that are in contact with the base member of the optical path changer, and the vibration absorbing surfaces are in contact with the support surfaces of the linkage frame to cause the support surfaces of the linkage frame to support the optical path changer.