A telescope including a fastener plate, a primary mirror carried by a front face of the plate, and a secondary mirror held facing the primary mirror by a support, wherein the support includes a primary sleeve mounted around the primary mirror, a secondary sleeve mounted around the secondary mirror, arms connecting the secondary sleeve to the primary sleeve, and mechanical decoupler for decoupling the secondary mirror relative to the primary mirror.

A camera module includes a lens module having lenses; a reflection module disposed on an object side of the lens module, and changing a path of light so that the light incident inside is directed toward the lens module; and an image sensor disposed on an image side of the lens module. The reflection module can be rotated about a first axis and a second axis perpendicular to the first axis, and an imaging plane of the image sensor includes a curved surface.

Methodology for calibrating a rotating mirror system includes: measuring a normal of a first fiducial of the mirror system; measuring vectors to a second fiducial of the mirror system, each vector being measured at a different angle of rotation about an azimuth axis of rotation of the mirror system; calculating the azimuth axis of rotation using the measured vectors; creating a base coordinate system from the measured first fiducial normal and the calculated azimuth axis of rotation; and for each of a first mirror and a second mirror of the mirror system, measuring normals of the mirror at multiple angles of rotation, calculating an axis of rotation of the mirror using the measured normals, creating a mirror coordinate system from the measured normals and the calculated axis of rotation of the mirror, and calculating a translation and rotation matrix from the mirror coordinate system to the base coordinate system.

An apparatus includes a device mount configured to be coupled to a component. The apparatus also includes an inner hub coupled to the device mount by a first flexure, where the first flexure is configured to permit translational movement of the device mount within the inner hub along a first axis. The apparatus further includes an outer hub coupled to the inner hub by a second flexure, where the second flexure is configured to permit translational movement of the device mount and the inner hub within the outer hub along a second axis different from the first axis. The first and second flexures form a compound nested flexure. The outer hub is configured to be coupled to a support structure and to permit both (i) translational movement of the apparatus along a third axis different from the first and second axes and (ii) tip/tilt adjustment of the apparatus.

This Cassegrain reflector 200 is provided with a primary mirror 201 and a secondary mirror 202 disposed coaxially with the primary mirror 201 and laterally supported by a plurality of supporting rods. The Cassegrain reflector 200 causes the light incident through an opening 212 formed along an axial line L of the primary mirror 201 to be reflected onto the secondary mirror 202, and then causes the light to be reflected onto the primary mirror 201 in order to emit the light toward a measurement position through an opening 231 formed on the side of the secondary mirror 202. A Cassegrain reflector retention mechanism 6 for retaining the Cassegrain reflector 200 is provided with a retainer 61 for retaining the Cassegrain reflector 200, and a rotation adjustment mechanism 60 for adjusting the rotational position of the plurality of supporting rods.

A method of making a pre-aligned optical mount, including: mounting a desired optical element onto a housing; securing the housing onto a stage having at least four degrees of freedom; aligning the optical element with a specified optical axis by adjustment of the stage; machining the housing to match an optical platform onto which the housing is be mounted; wherein the housing is machined such that an optical axis of the optical element is aligned with a predefined optical axis with respect to the optical platform when the housing is mounted onto the optical platform.

An optical element angle adjustment device includes a first hinge that is an elastic hinge configured to connect a first plate and a second plate with each other, an optical element holding part attached to at least one of the first plate and the second plate, and a first adjusting screw configured to apply force in a direction of closing the first hinge to adjust a tilt angle of at least one of the first plate and the second plate. An end in an axis direction of the first adjusting screw is provided with a first press member configured to slidably abut on one of the first plate and the second plate. At least one of a first press member side abutting portion and a first hinge side abutting portion on which the first press member abuts has a curved surface in a curved surface shape.

An adjusting device includes a base body, at least two drive elements, and a movable platform. Each of the drive elements abuts against a lever transmission device to perform a defined adjustment motion relative to the base body as a tilting motion about an axis through the platform and/or a translational motion parallel to an axis perpendicular to a platform plane. Joint elements allow for a tilting motion of the platform solely about the tilting axis. A spring element counteracts a parasitic translational motion in the platform plane and/or a parasitic rotatory motion of the platform about an axis of rotation arranged perpendicular to the platform plane due to the adjustment motion.

An apparatus includes a device mount configured to be coupled to a component. The apparatus also includes an inner hub coupled to the device mount by a first flexure, where the first flexure is configured to permit translational movement of the device mount within the inner hub along a first axis. The apparatus further includes an outer hub coupled to the inner hub by a second flexure, where the second flexure is configured to permit translational movement of the device mount and the inner hub within the outer hub along a second axis different from the first axis. The first and second flexures form a compound nested flexure. The outer hub is configured to be coupled to a support structure and to permit both (i) translational movement of the apparatus along a third axis different from the first and second axes and (ii) tip/tilt adjustment of the apparatus.

Optical systems have uses, such as in spectrometers, for directing a beam. A spectrometer, for example, utilizes an optical system for directing an incident beam toward a sample and receiving a spectroscopy signal from the sample. In various implementations, for example, an optical system may be further configured to move a beam with respect to a target, such as a sample, and still provide a home position where the beam is directed in a stationary configuration. A self-homing (e.g., self-centering) optical system may provide a home position in which the beam is directed in a first stationary mode while still allowing a focused beam to be moved with respect to a target in a second dynamic mode.