A display device includes an image forming unit, a projection unit, a main body, and a position correcting unit. The image forming unit includes a display surface and forms an image on the display surface. The projection unit projects a virtual image corresponding to an image on a target space by using output light from the image forming unit. The main body is equipped with an image forming unit and a projection unit. The position correcting unit changes a display position of a virtual image relative to the main body on the basis of an orientation signal representing an orientation of the main body. The position correcting unit includes a plurality of correcting units that change a display position of a virtual image by using different means. The position correcting unit selects at least one correcting unit from a plurality of correcting units in accordance with a frequency component of an orientation signal, and causes the selected correcting unit to change a display position of a virtual image.

A method and apparatus for mounting optical components is described. The apparatus is suitable for mounting multiple optical components and comprises a baseplate having opposing first and second surfaces. Recesses or apertures are formed within the baseplate and are located upon the first or second surfaces so as to define thermally activated optic mounting areas. Pillars are then located within the thermally activated optic mounting areas and these provide a means for attaching the optical component to the baseplate. The employment of the recesses or apertures act to significantly reduce the thermal conduction throughout the baseplate. As a result preferential heating can be provided to the one or more thermally activated optic mounting areas while maintaining the baseplate with a desired mechanical strength. The optical mounting apparatus exhibits a high thermal stability thus making the apparatus ideally suited for use within commercial optical system.

An optical unit, in particular a facet mirror unit, includes an optical element and a supporting device. The optical element has an optical surface, in particular an elongate optical surface, which defines a plane of main extension and a direction of main extension in the plane of main extension. The supporting device includes a supporting unit and an actuator unit. The actuator unit is configured for tilting the optical surface, in that a tilting moment is exerted on the optical element by way of the actuator unit. The tilting moment runs in an inclined manner in relation to the plane of main extension. The supporting unit is configured to predefine a tilting axis for the optical surface that lies substantially in the plane of main extension of the optical surface when there is tilting of the optical surface by the tilting moment of the actuator unit.

Diffractive waveplate lenses, mirrors, devices, systems and methods for performing imaging over a broad spectral band in imaging systems, such as but not limited to astronomical imaging, surveillance imaging, and in communication systems, such as laser communication systems. Corrector mirrors are used with a flat diffractive wave diffractive waveplate lens so that chromatic aberrations of the diffractive waveplate lens are reduced with the imaging system.

Provided is a moving object imaging system including: an imager that captures an image of a moving object and outputs captured image data; a deflector that changes a deflection angle of an optical axis of the imager by rotating a reflecting mirror; a housing that supports the deflector; a posture change detector that detects change in posture of the housing; and a control unit that controls a deflection angle of the deflector in accordance with a detection result of the posture change detector.

An adjustable mirror assembly comprising a mirror, a support, a leaf spring element biased between the support and a planar reverse side of the mirror, said leaf spring element generating a spring force, as well as at least two adjusting units mounted in the support and acting on the mirror in opposition to the spring force. The leaf spring element is mounted to the reverse side of the mirror via at least one mirror mounting point by a substance-to-substance bond and to the support via at least one support mounting point. The spring force is directed toward the support.

A flexure mount is described herein. The flexure mount includes three different flexures laterally offset from one another along a length of the flexure mount. The flexured design of the flexure mount allows for compliance in certain directions to reduce stress buildup normally associated with rigid mounting of dissimilar materials under dynamic thermal environments.

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 unit, in particular a facet mirror unit, includes an optical element and a supporting device. The optical element has an optical surface, in particular an elongate optical surface, which defines a plane of main extension and a direction of main extension in the plane of main extension. The supporting device includes a supporting unit and an actuator unit. The actuator unit is configured for tilting the optical surface, in that a tilting moment is exerted on the optical element by way of the actuator unit. The tilting moment runs in an inclined manner in relation to the plane of main extension. The supporting unit is configured to predefine a tilting axis for the optical surface that lies substantially in the plane of main extension of the optical surface when there is tilting of the optical surface by the tilting moment of the actuator unit.

An optical mount assembly includes a first plate configured to mount one or more optical components and a second plate arranged adjacent to the first plate and comprising a cavity formed therein. The first plate has an opening formed therein. The optical mount assembly further includes at least one adjustment mechanism secured to the first and second plates for adjusting the optical component(s). The adjustment mechanism(s) includes a ball bearing disposed within the cavity. The ball bearing defines a through hole. Further, the adjustment mechanism(s) includes an adjustment fastener extending through the opening in the first plate and at least partially within the through hole of the ball bearing.