Hollow motor apparatuses and associated systems and methods for manufacturing the same are disclosed herein. In representative embodiment, a hollow motor apparatus includes a rotor assembly rotatable about a rotation axis, a stator assembly positioned adjacent to the rotor assembly and coaxially with the rotor assembly relative to the rotation axis, and a bearing assembly operably coupled to the rotor assembly. The rotor assembly has an inner portion around an opening configured to receive at least a portion of a payload. The bearing assembly is disposed outside the inner portion of the rotor assembly and is configured to maintain a position of the rotor assembly relative to the stator assembly.

A light source device according to the present disclosure includes a first light source emitting a first light beam, a second light source emitting a second light beam, a third light source emitting a third light beam, and a transmissive optical part configured to transmit the light beams. The transmissive optical part rotates centering on a rotational axis. A cross-sectional shape perpendicular to a principal ray of each of the light beams is a shape having a long axis. In the transmissive optical part, a plane of incidence which each of the light beams enters, and an exit surface from which the light beam entering the plane of incidence is emitted are parallel to each other.

A light source device according to the present disclosure includes a first light emitter for emitting a first light beam, a first optical part having a first plane of incidence which the first light beam enters, and a first exit surface from which the first light beam is emitted, and a second optical part having a second plane of incidence which the first light beam emitted from the first optical part enters, and a second exit surface from which the first light beam is emitted. The first optical part rotates centering on a first rotational axis a. The second optical part rotates centering on a second rotational axis. The first plane of incidence and the first exit surface are parallel to each other, and the second plane of incidence and the second exit surface are parallel to each other.

A micromechanical light deflection device. The device includes a movable beam-deflecting element that is designed to deflect an input light beam into an output light beam, and a static beam-deflecting device having a plurality of differently oriented surfaces that are situated in the beam path of light for the movable beam-deflecting element in such a way that an input light beam for the movable beam-deflecting element and/or an output light beam from the movable beam-deflecting element passes through two of the differently oriented surfaces of the static beam-deflecting device.

A device for two-dimensionally scanning beam deflection of a light beam has spectrally tunable light source that emits a light beam having a time-varying wavelength. The device further comprises a first optical component that produces a first beam deflection. The first beam deflection causes the light beam to be deflected wavelength-dependently in a first direction. A second optical component produces a second beam deflection which causes the light beam to be deflected in a second direction different to the first direction. The second optical component comprises a prism pair comprising two prisms that are rotatably arranged successively in a beam path of the light beam. The two prisms are configured to perform continuous counter-rotational movements.

A measurement instrument is disclosed. The measurement instrument comprises a distance measurement module, a splitter and a deflection module. The distance measurement module is configured to transmit optical radiation along a transmit path and receive optical radiation along a receive path. The transmit path and the receive path are merged in a measurement beam at the splitter. The deflection module is located optically between the distance measurement module and the splitter. The deflection module is configured to aim the transmit path and the receive path at the splitter and to deflect at least one of the transmit path and the receive path across an instrument optical axis.

Provided is an optical measurement device configured so that a high-accuracy three-dimensional image can be obtained. An emission angle of a ray of light is changed in such a manner that the rotation frequencies of two motors configured to rotatably drive a first optical path changing unit and a second optical path changing unit is controlled. The ray of light is emitted to a front three-dimensional region, and reflected light is obtained. Then, calculation is made by a computer, and in this manner, three-dimensional data on a measurement target object is obtained. The amount (vibration amount) of axial backlash or play of a rotary mechanism, such as a motor shaft, along which the ray of light is emitted is measured in real time, and such a backlash or play amount is subtracted from a three-dimensional image obtained by the computer. Consequently, a high-accuracy three-dimensional image is obtained.

A beam steering device includes a housing and a transceiver that emits and receives light beams through at least one opening in the housing. A rotator includes a cylindrical body rotatably mounted within the housing axially between the transceiver and the at least one opening. A wedge-shaped prism is secured within the body and includes a first surface extending perpendicular to the axis and a second surface extending transverse to the axis. An encoder member and a drive member are provided on an outer surface of the body. Sensors are mounted to the housing to sense the encoder member and provide an encoder signal indicative of a rotational position of the prism about the axis. At least one drive element is mounted to the housing and applies force to the drive member to rotate the body and prism about the axis for steering light beams propagating through the prism.

An optical system comprises a linear illumination source configured to emit light, a first scanning stage configured to receive the light and to scan the light, and a second scanning stage. The linear illumination source is configured to generate light forming a vertical field of view based on the one or more output signals received from a controller modulating the one or more output signals comprising image data defining content. The first scanning stage redirects portions of the light to generate an output defining a horizontal field of view based on the one or more output signals of the controller. The first scanning device combines the vertical field of view and the horizontal field of view in the output light to create a two-dimensional light image of the content. The second scanning stage receives and directs the output of the first scanning stage toward a projected exit pupil.

A true three-dimensional volumetric imaging device includes an imaging light source, a light source adjusting unit, an imaging plate, and a movement driving unit. The light source adjusting unit is arranged between the imaging light source and the imaging plate, and the imaging plate is connected to the movement driving unit. A light beam emitted from the imaging light source is incident onto the imaging plate after being adjusted by the light source adjusting unit, and the movement driving unit causes the imaging plate to oscillate in a direction parallel to an outgoing direction of the light beam emitted from the imaging light source. In the true three-dimensional volumetric imaging device, the true three-dimensional volumetric display of an image is achieved. An algorithm herein is simpler, and a more complete volumetric object can be shown.