US 12,443,031 B2
Optical path control apparatus and display apparatus
Hiroyuki Takada, Yokohama (JP)
Assigned to JVCKENWOOD Corporation, Yokohama (JP)
Filed by JVCKENWOOD Corporation, Yokohama (JP)
Filed on Sep. 7, 2022, as Appl. No. 17/939,055.
Claims priority of application No. 2021-153172 (JP), filed on Sep. 21, 2021; application No. 2021-153468 (JP), filed on Sep. 21, 2021; and application No. 2021-153469 (JP), filed on Sep. 21, 2021.
Prior Publication US 2023/0089186 A1, Mar. 23, 2023
Int. Cl. G02B 26/08 (2006.01); G02B 26/10 (2006.01); H04N 9/31 (2006.01)
CPC G02B 26/101 (2013.01) [H04N 9/3152 (2013.01)] 5 Claims
OG exemplary drawing
 
1. An optical path control apparatus comprising:
an oscillating part, the oscillating part having an optical part on which light is made incident, a first oscillating part for supporting the optical part, and a second oscillating part for supporting the first oscillating part in an oscillatable manner by a first shaft part, the second oscillating part being supported on a support part in an oscillatable manner by a second shaft part;
a first actuator configured to oscillate the oscillating part about a first oscillation axis including the first shaft part with the first shaft part as a support; and
a second actuator configured to oscillate the oscillating part about a second oscillation axis including the second shaft part with the second shaft part as a support, wherein
the first oscillation axis crosses the second oscillation axis,
torsional rigidity of the second shaft part is higher than torsional rigidity of the first shaft part,
the light is light for an image, and
a natural frequency of the first oscillating part and a natural frequency of the second oscillating part are set shifting from odd multiple values of a corresponding frame rate of the image.