Abstract: A light path adjustment mechanism includes a support, a carrier, an optical plate member and a plurality of actuators. The carrier is disposed on the support and connected to the support via a first elastic member and a second elastic member. The carrier includes a first side, a second side opposite the first side, a third side and a fourth side opposite the third side, and each of the third side and the fourth side is located between the first side and the second side. The actuators are disposed on at most three sides of the first side, the second side, the third side and the fourth side, and the actuators are disposed at least on the first side and the third side.

Abstract: A light path adjustment mechanism includes a bracket, a light valve, a carrier, a first axis, a second axis and an optical plate member. A surface normal of a surface of the light valve crosses the bracket to define an intersection closest to the surface of the light valve, and the bracket has an end point furthest from the intersection measured in the direction of the surface normal. A distance between the intersection and the surface measured in the direction of the surface normal is smaller than a distance between the intersection and the end point measured in the direction of the surface normal.

Abstract: A light path adjustment mechanism includes a support, a carrier, an optical plate member, a permanent magnet and an electromagnet. The carrier is disposed in the support and connected to the support by a first elastic member and a second elastic member, the first elastic member and the second elastic member are configured to twist substantially about a first axial direction, and the optical plate member is disposed on the carrier. An attractive force or a repulsive force generated between the permanent magnet and the electromagnet acts in a direction substantially perpendicular to the first axial direction, and one end of the carrier is provided with the permanent magnet or the electromagnet.

Abstract: An optical path adjusting mechanism including a rotating base, an optical element, a coil, a first spring and a second spring is provided. The rotating base includes a first corner and a second corner opposite to the first corner. A first area and a second area are disposed along a line passing through the first corner and the second corner on the rotating base. The optical element is disposed on the rotating base. The coil is disposed around a periphery of the rotating base. One terminal of the first spring is connected to the first area of the rotating base. One terminal of the second spring is connected to the second area of the rotating base.

Abstract: A light path adjustment mechanism includes a carrier, an optical plate member, a support, a base, a first pair of transmission mechanical pieces, and a second pair of transmission mechanical pieces. One side of the support is provided with a first actuator, and one side of the base is provided with a second actuator. The first pair of transmission mechanical pieces are connected between the base and the support, and the second pair of transmission mechanical pieces are connected between the carrier and the support. The first pair of transmission mechanical pieces are entirely disposed on only one side of the carrier.

Abstract: A light path adjustment mechanism includes a support, a carrier, an optical plate member and a plurality of actuators. The carrier is disposed on the support and connected to the support via a first elastic member and a second elastic member. The carrier includes a first side, a second side opposite the first side, a third side and a fourth side opposite the third side, and each of the third side and the fourth side is located between the first side and the second side. The actuators are disposed on at most three sides of the first side, the second side, the third side and the fourth side, and the actuators are disposed at least on the first side and the third side.

Abstract: A light path adjustment mechanism includes a support, a carrier, an optical plate member and a plurality of actuators. The carrier is disposed on the support and connected to the support via a first elastic member and a second elastic member. The carrier includes a first side, a second side opposite the first side, a third side and a fourth side opposite the third side, and each of the third side and the fourth side is located between the first side and the second side. The actuators are disposed on at most three sides of the first side, the second side, the third side and the fourth side, and the actuators are disposed at least on the first side and the third side.

Abstract: An optical path adjusting mechanism including a rotating base, an optical element, a coil, a first spring and a second spring is provided. The rotating base includes a first corner and a second corner opposite to the first corner. A first area and a second area are disposed along a line passing through the first corner and the second corner on the rotating base. The optical element is disposed on the rotating base. The coil is disposed around a periphery of the rotating base. One terminal of the first spring is connected to the first area of the rotating base. One terminal of the second spring is connected to the second area of the rotating base.

Abstract: A manufacturing method of a projection apparatus is provided. The manufacturing method of the projection apparatus includes: classifying a light valve by using an optical jig which includes a lens with a constant aperture; selecting an aperture stop with a size corresponding to classification of the light valve; and assembling the light valve and the aperture stop to form the projection apparatus.

Abstract: An optical path adjusting mechanism including a rotating base, an optical element, a coil, a first spring and a second spring is provided. A first area and a second area are diagonally disposed on the rotating base. The optical element is disposed in the rotating base. The coil is disposed around a periphery of the rotating base. One terminal of the first spring is connected to the first area of the rotating base. One terminal of the second spring is connected to the second area of the rotating base.

Abstract: A light path adjustment mechanism includes a carrier, an optical plate member, a support, a base, a first pair of transmission mechanical pieces, and a second pair of transmission mechanical pieces. One side of the support is provided with a first actuator, and one side of the base is provided with a second actuator. The first pair of transmission mechanical pieces are connected between the base and the support, and the second pair of transmission mechanical pieces are connected between the carrier and the support. The first pair of transmission mechanical pieces are entirely disposed on only one side of the carrier.

Abstract: A light path adjustment mechanism includes a support, a carrier, an optical plate member and a raised structure. The carrier is disposed in the support and connected to the support by a first connection bar and a second connection bar. The optical plate member is disposed on the carrier, and the raised structure is provided on a periphery of the carrier and integrally formed as one piece with the carrier.

Abstract: A light path adjustment mechanism includes a support, a carrier, an optical plate member, a permanent magnet and an electromagnet. The carrier is disposed in the support and connected to the support by a first elastic member and a second elastic member, the first elastic member and the second elastic member are configured to twist substantially about a first axial direction, and the optical plate member is disposed on the carrier. An attractive force or a repulsive force generated between the permanent magnet and the electromagnet acts in a direction substantially perpendicular to the first axial direction, and one end of the carrier is provided with the permanent magnet or the electromagnet.

Abstract: An optical path adjusting mechanism including a rotating base, an optical element, a coil, a first spring and a second spring is provided. A first area and a second area are diagonally disposed on the rotating base. The optical element is disposed in the rotating base. The coil is disposed around a periphery of the rotating base. One terminal of the first spring is connected to the first area of the rotating base. One terminal of the second spring is connected to the second area of the rotating base.

Abstract: A light path adjustment mechanism includes a bracket, a light valve, a carrier, a first axis, a second axis and an optical plate member. A surface normal of a surface of the light valve crosses the bracket to define an intersection closest to the surface of the light valve, and the bracket has an end point furthest from the intersection measured in the direction of the surface normal. A distance between the intersection and the surface measured in the direction of the surface normal is smaller than a distance between the intersection and the end point measured in the direction of the surface normal.

Abstract: A projector including a light source, a light valve, a projection lens and a displacement module is provided. The light source generates an illumination light. The light valve converts the illumination light into a multi-pixel area image light. The projection lens is disposed in a transmission path of the multi-pixel area image light. The image displacement module includes a carrier, an optical element, a frame and a base. The carrier, the frame and the base are substantially coplanar with each other, and the multi-pixel area image light provided is configured to be moved by the optical element and being moved along a third direction in response to the spinning of the carrier, and the first direction is different from the second direction. Furthermore, a three-dimensional printing apparatus is also provided.

Abstract: A light path adjustment mechanism includes a support, a carrier, an optical plate member and a plurality of actuators. The carrier is disposed on the support and connected to the support via a first elastic member and a second elastic member. The carrier includes a first side, a second side opposite the first side, a third side and a fourth side opposite the third side, and each of the third side and the fourth side is located between the first side and the second side. The actuators are disposed on at most three sides of the first side, the second side, the third side and the fourth side, and the actuators are disposed at least on the first side and the third side.

Abstract: A manufacturing method of a projection apparatus is provided. The manufacturing method of the projection apparatus includes: classifying a light valve by an optical jig; selecting an aperture stop with a size corresponding to classification of the light valve; and assembling the light valve and the aperture stop to form the projection apparatus.

Abstract: A projector including a light source, a light valve, a projection lens and a displacement module is provided. The light source generates an illumination light. The light valve converts the illumination light into a multi-pixel area image light. The projection lens is disposed in a transmission path of the multi-pixel area image light. The image displacement module includes a carrier, an optical element, a frame and a base. The carrier, the frame and the base are substantially coplanar with each other, and the multi-pixel area image light provided is configured to be moved by the optical element and being moved along a third direction in response to the spinning of the carrier, and the first direction is different from the second direction. Furthermore, a three-dimensional printing apparatus is also provided.

Abstract: A light path adjustment mechanism includes a support, a carrier, an optical plate member and a raised structure. The carrier is disposed in the support and connected to the support by a first connection bar and a second connection bar. The optical plate member is disposed on the carrier, and the raised structure is provided on a periphery of the carrier and integrally formed as one piece with the carrier.