Disclosed is a spatial division structure. A spatial division structure according to an exemplary embodiment of the present invention is mounted to divide a reflective surface of a rotary reflection structure provided in the form of a polyhedron and configured to reflect light and includes a blocking plate having therein an insertion space into which the rotary reflection structure is inserted, the blocking plate having a board shape extending in a direction perpendicular to a rotation axis of the rotary reflection structure from the reflective surface to divide the reflective surface into a first reflective surface and a second reflective surface, and frames configured to fix a position of the blocking plate to the reflective surface, in which the frames include one or more first frames connected to the blocking plate and positioned at a lateral side of the first reflective surface, the one or more first frames extending in a direction of the rotation axis of the rotary reflection structure, and one or more second frames each connected to one end of each of one or more first frames and positioned at an upper side of the first reflective surface, the one or more second frames extending to cross the one or more first frames.

Multiple-link optical terabit terminals (MLOTT) allowing high speed data transfer rates in terabit per second range in an omnidirectional fashion are disclosed. The described terminals have multifaceted structure, provide full coverage, implement single laser or laser arrays, and single detector or detector arrays to achieve higher transmission rates. Wavelength division multiplexing schemes can also be used when implementing the disclosed terminals for higher data rates. Steerable mirrors and lenses can be implemented as part of the terminals and based on angle-of-arrival calculations performed in real time.

A reflector array includes a support structure, a motor, a shaft operatively coupled to the motor, a free plate, and a drive plate. The free plate includes a free plate first side and a free plate second side axially opposed to the free plate first side. The free plate further may include a latching mechanism disposed on the free plate second side and a drive plate. The drive plate is rotatably coupled to the shaft. The drive plate includes a drive plate first side and a drive plate second side axially opposed to the drive plate first side. The drive plate further includes a drive plate finger coupled to the drive plate second side. The drive plate finger is configured to contact the latching mechanism in response to rotation of the driver plate. The drive plate finger is further configured to couple the drive plate to the free plate.

An optical device including a support mounted on a rotational-drive motor, and a reflective optical component, the support including at least one sleeve coaxial with the rotational-drive axis, of which sleeve one end defines an inlet orifice and which sleeve in its wall includes an opening defining an outlet orifice, and inside which sleeve the reflective optical component is housed in such a way that a beam of light entering via the inlet orifice is reflected by the reflective optical component to exit via the outlet orifice. An optical component mounted and retained in the sleeve as a result of cooperation of shape between it and the wall of said sleeve is also discussed.

A head-up display apparatus in which display light emitted by a display device to express an image is reflected by a reflecting part, and a virtual image corresponding to the reflected image is displayed. The apparatus includes: a reflecting-part holder provided with a pair of rotary shaft parts protruding at both ends thereof, the rotary shaft parts retaining the reflecting part; a pair of bearings rotatably supporting the pair of rotary shaft parts; and a pair of bearing holders retaining the pair of bearings in a housing; first supported parts protruding in the radial direction of the bearings provided to the bearing holders, and the housing provided with a hole-shaped first support part in which the first supported part of one bearing holder is positioned, and an elongated-hole-shaped second support part elongated in an axial direction in which the first supported part of the other bearing holder is positioned.

Systems and methods are provide for an actuator system for a rear view device of a motor vehicle, configured for adjustment of a component when being connected to the actuator system The actuator system may include a drive system arranged to rotate a bayonet gear, which is coupled via at least one engagement element to a latching barrel to axially move or rotate the latching barrel along or around a rotational axis, wherein the latching barrel is configured to engage into at least one of two worm gears or to rotate the engaged worm gear when being moved or rotated. The latching barrel may be cylindrically shaped with a cylindrical surface as an engagement surface and oppositely arranged first and second sides each directed towards one of the two worm gears.

A projection direction change device includes a mirror that reflects light emitted from a projection lens unit of a projector, a mirror support part that rotatably supports the mirror around a first axis and a second axis, a first drive part that rotary drives the mirror around the first axis, and a second drive part that rotary drives the mirror around the second axis. An intersecting point of the first and second axes is positioned closer to the projection lens unit than a geometric barycenter of the mirror is.

A magnetic sensor is able to detect a magnetic field applied from a position detecting magnet that makes relative movement as an optical reflector is rotated. Rotation of the optical reflector enables the position detecting magnet to pass through a reference position where a rotation axis, a center or approximate center of the magnetic sensor, and a center or approximate center of the position detecting magnet are located in order on a straight line, as seen in the axial direction of the rotation axis. The magnetic sensor is disposed in an XZ plane that includes a magnetization direction passing through the center or approximate center of the position detecting magnet located at the reference position, and the axial direction of the rotation axis.

A head-up display includes a mirror body, a mirror having a shaft serving a rotary axis, a bearing member which holds the shaft of the mirror to be rotatable, a torsion spring through which the shaft penetrates and which urges the mirror in a predetermined rotational direction of the rotary axis with respect to the bearing member, and a housing which accommodates the mirror, the bearing member, and the torsion spring. The torsion spring is disposed on an opposite side opposite to the mirror with respect to the bearing member. The bearing member includes a protrusion to which one end of the torsion spring is hung. The housing includes a depressed portion fitted to the bearing member to fix the bearing member.

An alignment adjuster includes a first holder made of a first material and configured to support an optical element, a first adjuster including a first expandable/contractable section made of a second material different from the first material and configured to rotate the first holder and the optical element around a first axis by adjusting the length of the first expandable/contractable section with the first expandable/contractable section being in contact with the first holder, and a first support member made of the second material and configured to support the first adjuster, and the first adjuster is configured to be capable of adjusting the position where the first expandable/contractable section and the first holder are in contact with each other to be located in a first plane containing a first end section of the first support member and the first axis.