Abstract: A stabilizer (10) includes a base (20) fixed on a motion reduction target (1); a gimbal (40) supported by the base to be rotatable around a first axis (RA); a damper mechanism (30) disposed to damp a relative rotary motion of the gimbal (40) to the base (20); a flywheel (50) disposed to be rotatable around a second axis (RB) orthogonal to the first axis (RA). The damper mechanism (30) is a passive-type damper mechanism. A first value (D1) of a damping coefficient (D) of the damper mechanism (30) when an angular velocity of the gimbal (40) is a first angular velocity is larger than a second value (D2) of the damping coefficient (D) of the damper mechanism (30) when the angular velocity of the gimbal (40) is a second angular velocity smaller than the first angular velocity.

Abstract: A stabilizer (10) includes a base (20) fixed on a motion reduction target (1); a gimbal (40) supported by the base to be rotatable around a first axis (RA); a damper mechanism (30) disposed to damp a relative rotary motion of the gimbal (40) to the base (20); a flywheel (50) disposed to be rotatable around a second axis (RB) orthogonal to the first axis (RA). The damper mechanism (30) is a passive-type damper mechanism. A first value (D1) of a damping coefficient (D) of the damper mechanism (30) when an angular velocity of the gimbal (40) is a first angular velocity is larger than a second value (D2) of the damping coefficient (D) of the damper mechanism (30) when the angular velocity of the gimbal (40) is a second angular velocity smaller than the first angular velocity.

Abstract: A rolling motion reducing apparatus includes a flywheel, a gimbal, a gimbal supporting section, a damper and a lock mechanism. The gimbal rotatably supports the flywheel. The gimbal supporting section supports the gimbal 11 through a gimbal shaft such that the gimbal can rotate. The damper 13 brakes a rotational motion of the gimbal. The lock mechanism locks a rotational motion of the gimbal.

Abstract: To realize a window structure that can ensure that scenery can be viewed from an indoor space during the daytime and prevent peeping from outdoors regardless of whether it is daytime or nighttime. A window structure including a translucent planar light emitter in which a half mirror layer is provided on the inside thereof, and glass panels provided on an inside and an outside of the planar light emitter. The planar light emitter includes a translucent resin panel, a light-emitting element provided on an end surface of the resin panel, and a light diffusing layer provided on a surface of the translucent resin panel. A surface of the planar light emitter emits light when light of the light-emitting element enters from the end surface of the resin panel, is reflected by the half mirror layer, and is diffused by the light diffusing layer.

Abstract: A swinging motion reducing apparatus includes a flywheel 20, a gimbal 11, a gimbal supporting section 12, a damper 13 and a lock mechanism 14. The gimbal 11 rotatably supports the flywheel 20. The gimbal supporting section 12 supports the gimbal 11 through a gimbal shaft 15 such that the gimbal 11 can swing. The damper 13 brakes a swinging motion of the gimbal 11. The lock mechanism 14 locks a swinging motion of the gimbal 11.