公开(公告)号：US20230411921A1

公开(公告)日：2023-12-21

申请号：US17844393

申请日：2022-06-20

Applicant: BAE SYSTEMS Information and Electronic Systems Integration Inc.

Inventor： David E. Thompson ,  Gerard J. Pelletier ,  Katherine J. Snell

IPC: H01S3/04 ,  H01S3/06 ,  H01S3/02

CPC classification number: H01S3/0405 ,  H01S3/025 ,  H01S3/0606

Abstract: The system and method for mounting a high power laser having a coefficient of thermal expansion that is thermally matched for the gain medium and the mount. In some cases, the gain medium is clamped by the mount along longitudinal edges and has a pair of free ends not in thermal contact with the mount. A thermal interface may be present along at least a portion of the longitudinal edges.

公开(公告)号：US20230168474A1

公开(公告)日：2023-06-01

申请号：US17538467

申请日：2021-11-30

Applicant: BAE SYSTEMS Information and Electronic Systems Integration Inc.

Inventor： Kevin W. Peters ,  Gerard J. Pelletier ,  David E. Thompson

IPC: G02B13/14 ,  H01L27/146 ,  G02B13/02

CPC classification number: G02B13/14 ,  H01L27/14649 ,  G02B13/02 ,  H01L27/14627

Abstract: An athermalized Short-Wave InfraRed (SWIR) telephoto lens for a tracking camera having, in order, from a remote object to an image plane an aperture stop, a first optical element having a first element first surface radius of 23.21 mm, a first element second surface radius of 46.25 mm, a second optical element having a second element first surface radius of 22.72 mm, a second element second surface radius of 45.58 mm, a third optical element having a third element first surface radius of −56.85 mm, a third element second surface radius of 16.65 mm, where the lens is corrected over a spectral waveband of 1.5 μm to 1.6 μm from −10 C to +65 C, has a length from the first element to the camera of 88 mm, has a telephoto ratio of 0.367, has an F # of 24, and has a focal length of 240 mm.

公开(公告)号：US11888287B2

公开(公告)日：2024-01-30

申请号：US17175773

申请日：2021-02-15

Applicant: BAE SYSTEMS Information and Electronic Systems Integration Inc.

Inventor： David E. Thompson ,  Gerard J. Pelletier ,  Glenn Sindledecker

IPC: H01S5/024 ,  H01S3/0941 ,  H01S3/04 ,  H01S3/042 ,  H01L23/473 ,  H01S5/04

CPC classification number: H01S5/02423 ,  H01L23/473 ,  H01S3/0407 ,  H01S3/0941 ,  H01S5/02415 ,  H01S3/042 ,  H01S5/041

Abstract: The system and method for cooling a laser using a split liquid cooled heat exchanger. The temperature of coolant entering the system is applied to a portion of the system most in need of lower temperatures and a second heat exchanger uses the outflow from the first heat exchanger to cool a remaining portion of the system that has a tolerance for higher temperatures. The laser cooling system is compact, e.g., less than 45 cubic inches and can handle thermal loads of about 800 W.

公开(公告)号：US20220256743A1

公开(公告)日：2022-08-11

申请号：US17172143

申请日：2021-02-10

Applicant: BAE SYSTEMS Information and Electronic Systems Integration Inc.

Inventor： Gerard J. Pelletier ,  David E. Thompson

IPC: H05K7/20

Abstract: The system and method for cooling a card cage using a compact combination vacuum/dip brazed card cage with integral liquid cooling passages, wherein all surfaces of the card cage are used for cooling. The card cage cooling 3U circuit cards internally and non-standard boards mounted externally by heat sinking the non-standard boards to the external walls. Finned, internal liquid cooling passages being orificed to maintain a total pressure drop from a single system inlet to a single system outlet of no more than 5 psi.

公开(公告)号：US11733497B2

公开(公告)日：2023-08-22

申请号：US17538467

申请日：2021-11-30

Applicant: BAE SYSTEMS Information and Electronic Systems Integration Inc.

Inventor： Kevin W. Peters ,  Gerard J. Pelletier ,  David E. Thompson

IPC: G02B13/14 ,  H01L27/146 ,  G02B13/02

CPC classification number: G02B13/14 ,  G02B13/02 ,  H01L27/14627 ,  H01L27/14649

Abstract: An athermalized Short-Wave InfraRed (SWIR) telephoto lens for a tracking camera having, in order, from a remote object to an image plane an aperture stop, a first optical element having a first element first surface radius of 23.21 mm, a first element second surface radius of 46.25 mm, a second optical element having a second element first surface radius of 22.72 mm, a second element second surface radius of 45.58 mm, a third optical element having a third element first surface radius of −56.85 mm, a third element second surface radius of 16.65 mm, where the lens is corrected over a spectral waveband of 1.5 μm to 1.6 μm from −10 C to +65 C, has a length from the first element to the camera of 88 mm, has a telephoto ratio of 0.367, has an F# of 24, and has a focal length of 240 mm.

公开(公告)号：US09684146B2

公开(公告)日：2017-06-20

申请号：US14769895

申请日：2014-09-19

Applicant: BAE Systems Information and Electronic Systems Integration Inc.

Inventor： Adam J. Marcinuk ,  Michael J. Shaw ,  David E. Thompson

IPC: F16C11/10 ,  G02B7/00 ,  G02B7/18

CPC classification number: G02B7/008 ,  F16C11/103 ,  G02B7/181

Abstract: A temperature insensitive locking apparatus for use with large optical mounts having at least one locking nut having an internal threaded portion adjacent to an internal tapered portion, at least one flexurized spring collet attached to a rigid base structure having an external threaded portion and a plurality of tapered flexures, a pivot shaft engaged with an optical yoke on a rotational axis of symmetry wherein when the internal threads of the locking nut engage with the external threads of the flexurized spring collet an increased level of a radial clamping force is provided around the pivot shaft.