Bae Systems, Inc.

Nicholas John Archer

Leslie Charles Laycock

Michael Stewart Griffith

Lionel William John Kent

John Martin Bagshaw

Duncan Peter Rowe

Andrew Graham McCarthy

In an arrangement for transmitting power or data through a solid rigid substrate without penetrating the substrate, acoustic transducer components are mounted on the substrate by means of strain isolator elements which are welded or otherwise bonded to the substrate and providing an attachment surface to which the attachment interface of the acoustic transducer may be attached. The strain isolator element is of the same or similar acoustic impedance as the rigid substrate and may indeed be formed of the same material. Various geometries of strain isolator are disclosed, including a plain spacer block, and one comprising a stalk attached to the solid rigid substrate and topped by a disc in a 'mushroom' configuration.

Mounting arrangements

In an arrangement for transmitting power or data through a solid rigid substrate without penetrating the substrate, acoustic transducer components are mounted on the substrate by means of strain isolator elements which are welded or otherwise bonded to the substrate and providing an attachment surface to which the attachment interface of the acoustic transducer may be attached. The strain isolator element is of the same or similar acoustic impedance as the rigid substrate and may indeed be formed of the same material. Various geometries of strain isolator are disclosed, including one comprising a stalk attached to the solid rigid substrate and topped by a disc in a 'mushroom' configuration.

A passive suspension for a bimorph or other self-deforming mirror includes elements, e.g., of herringbone shape, extending between an edge of the mirror substrate and a support structure. The elements have portions directed transversely (e.g. obliquely) relative to a direction of relative movement between the mirror edge and the support structure, so as to accommodate the movement by bending.

Deformable mirror suspension

This invention relates to a deformable-mirror holder for holding a mirror in a desired position, to within accepted tolerances, even whilst the mirror is deforming or in a deformed state. In particular, this invention relates to a holder for a bimorph mirror. A deformable-mirror holder is provided comprising a body with a central aperture for receiving a deformable mirror, the central aperture being defined by a plurality of flexible beams, with each flexible beam having an end shaped to provide a supporting surface and a flexible portion that connects the beam's end to the holder's body.

Deformable-mirror holder

This invention concerns improvements relating to a deformable-mirror holder for holding a mirror in a desired position, to within accepted tolerances, even whilst the mirror is deforming or in a deformed state. More particularly but not exclusively, this invention relates to a holder for a bimorph mirror. A deformable mirror holder () is provided comprising a body with a receiving portion for receiving a deformable mirror (), and wherein the receiving portion is defined by a passive flexible support structure () such that, in use, to the support structure provides a supporting surface to the mirror. This invention extends to a deformable mirror and a deformable mirror holder as described above.

Mirror structure having piezoelectric element bonded to a mirror substrate

This invention relates to a hybrid deformable mirror. A deformable mirror is provided comprising a reflective surface provided on a substrate and a layer of deformable material attached to the substrate that is operable to deform the mirror and wherein the substrate is supported by an actuator that is operable to deform the mirror.

Deformable mirror

This invention relates to a cooled deformable-mirror and its mount. A deformable mirror is provided comprising a reflective element provided on a substrate that is secured to a deformable element, wherein the substrate comprises at least one channel having a pair of ports both located around the peripheral edge of the substrate. In addition, a deformable-mirror mount and the deformable mirror described above are provided, wherein the mount has a body with a central aperture defined by a supporting surface sized and shaped to support the mirror when installed, and wherein the mount is provided with at least a pair of channels that terminate to face the ports in the mirror when the mirror is installed, the channels of the mirror and the mount being connected via flexible seals.

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Chelmsford, United Kingdom

Nicholas John Archer