In an example, a method comprises: directing a sensing beam towards a reflective component of a print apparatus in a direction; detecting a reflected portion of the sensing beam at a detector comprising a two-dimensional sensing region; obtaining an indication of a location of the reflected portion of the sensing beam incident on the two-dimensional sensing region; and determining an orientation of the reflective component based on a correspondence between the location of the portion of the sensing beam on the two-dimensional sensing region and the direction of the sensing beam reflected by the component according to its orientation.

An optical system is provided. The optical system includes a second optical module for driving a second optical element. The second optical module includes a second immovable part, a second movable part, a second driving assembly, and a second guiding assembly. The second movable part is used for connected to the second optical element. The second movable part is movable relative to the second immovable part. The second driving assembly is used for driving the second movable part to move relative to the second immovable part. The second guiding assembly is used for guiding the second movable part to move relative to the second immovable part in a first dimension.

An augmented reality display apparatus and an augmented reality display device comprising the same. The apparatus comprises: a display system (12) configured to display a target image; a depth acquisition assembly (11) configured to acquire depth position information of a target object, the target object including at least one of a human eye, the target image, and a real environment within a field of view of the human eye, the depth position information of the target object including at least one of position information of a depth plane at a gaze position of human eyes, position information of a depth plane where the target image is to be displayed, and position information of a depth plane of the real environment; a processor (13) fixedly connected to the display system (12), the processor (13) being configured to determine displacement information of the display system (12) based on the depth position information of the target object acquired by the depth acquisition assembly (11); a spectacle frame (15) connected to the display system (12) and the depth acquisition assembly (11); and a lifter (14) fixedly connected to the spectacle frame (15), the lifter (14) being connected to the processor (13) by a cable, a driver (142) in the lifter (14) being fixedly connected to the display system (12), the lifter (14) being configured to drive the display system (12) to move to a target position relative to the spectacle frame (15) based on the displacement information determined by the processor (13), the target position being a final arrival position of the display system (12) indicated by the displacement information.

An optical assembly having at least a first optical element and a second optical element, both of which are arranged to be movable in a guided manner, is provided. A guide common to both optical elements is present, which provides a guide path that is common to both optical elements during the guided movement of the first optical element and during the guided movement of the second optical element.

The present invention concerns an objective (10) for imaging an object field of view of 10° onto an imager (12), the objective (10) comprising in order of the propagating direction: —a first lens unit (U1) comprising several lenses, the first lens unit (U1) having a positive first focal length and a first dimension inferior to 15 millimeters, —a bending mirror (M) adapted to bend at a 90° angle, —a liquid lens (LL), and —a second lens unit (U2) comprising several lenses, the second lens unit (U2) having a positive second focal length and a second dimension, the ratio between the first focal length and the second focal length being comprised between 1.0 and 2.0 and the ratio between the first dimension and the second dimension being superior or equal to 2.

An optical mount including a first frame and a second frame; wherein the first frame includes a drive adjuster configured to move along a first direction and the drive adjuster is in contact with a ramp on a pusher piston, such that a movement of the drive adjuster causes the pusher piston to move along a second direction; wherein the pusher piston is configured to push kinematic contacts on the second frame resulting in a controlled movement of the second frame by the drive adjuster.

A driving mechanism for supporting an optical member is provided, including a fixed module, a movable module, a driving module disposed therebetween, and an elastic member. The driving module can drive the movable module to rotate around a first rotation axis relative to the fixed module. The elastic member includes a first connecting portion connected to the movable module, a second connecting portion connected to the fixed module, a first string portion connected to the first connecting portion, and a first buffer portion connected to the first string portion. The first string portion is disposed on the first rotation axis. The longitudinal axis of the first string portion is parallel to the first rotation axis. The first buffer portion has wave-shaped structure.

Apparatus and methods for coupling an optical beam from an optical source to a hi-tech system are described. A compact, low-cost beam-shaping and steering assembly may be located between the optical source and hi-tech system and provide automated adjustments to beam parameters such as beam position, beam rotation, and beam incident angles. The beam-shaping and steering assembly may be used to couple an elongated beam to a plurality of optical waveguides.

An optical element driving mechanism has an optical axis and includes a fixed portion, a movable portion, and a driving assembly. The movable portion is movable relative to the fixed portion. The driving assembly drives the movable portion to move relative to the fixed portion, wherein the driving assembly moves along a first direction to move the movable portion along a second direction, the first direction is different from the second direction.

In one aspect of the present disclosure, a digital image capturing device (DICD) is described that includes a first integrated sensor-lens assembly (ISLA) defining a first optical axis and facing in a first direction; a second ISLA defining a second optical axis offset from the first optical axis and facing in a second direction generally opposite the first direction (i.e., such that the second ISLA is rotated approximately 180 from the first ISLA); and a bridge member that is positioned between the first and second ISLAs to fixedly secure together the first and second ISLAs. The bridge member is configured as a discrete structure (i.e., as being separate from both the first ISLA and the second ISLA), and defines a longitudinal axis that is generally parallel in relation to the first and second optical axes.