公开(公告)号：US20220342227A1

公开(公告)日：2022-10-27

申请号：US17842913

申请日：2022-06-17

Applicant: BAE Systems Information and Electronic Systems Integration Inc.

Inventor： Daniel N. Kokubun ,  Mark S. Branham ,  Sidney Pang ,  Mark Segawa

IPC: G02B27/10 ,  G02B27/48

Abstract: Techniques are provided for laser illumination employing closely spaced laser beams. A system implementing the techniques according to an embodiment includes a semi-cylindrical optical block comprising a curved surface and a planar surface. A first laser source to generate a first laser beam directed to the planar surface, wherein the first laser beam enters the optical block at a first angle that exceeds a critical angle, relative to the planar surface, the critical angle causing total internal reflection, such that the first laser beam is refracted through and exits the optical block. A second laser source to generate a second laser beam directed to the curved surface, wherein the second laser beam enters the optical block at a second angle that exceeds the critical angle, relative to the planar surface, such that the second laser beam is reflected off the planar surface and exits the optical block parallel to the first laser beam exiting from the optical block, the separation based on a location of the entry of the first laser beam into the optical block. The separation of the exiting first and second laser beams is controlled by the selected translation distance.

公开(公告)号：US11719949B2

公开(公告)日：2023-08-08

申请号：US17842913

申请日：2022-06-17

Applicant: BAE Systems Information and Electronic Systems Integration Inc.

Inventor： Daniel N. Kokubun ,  Mark S. Branham ,  Sidney Pang ,  Mark Segawa

IPC: G02B27/10 ,  G02B27/48

CPC classification number: G02B27/108 ,  G02B27/48

Abstract: Techniques are provided for laser illumination employing closely spaced laser beams. A system implementing the techniques according to an embodiment includes a semi-cylindrical optical block comprising a curved surface and a planar surface. A first laser source to generate a first laser beam directed to the planar surface, wherein the first laser beam enters the optical block at a first angle that exceeds a critical angle, relative to the planar surface, the critical angle causing total internal reflection, such that the first laser beam is refracted through and exits the optical block. A second laser source to generate a second laser beam directed to the curved surface, wherein the second laser beam enters the optical block at a second angle that exceeds the critical angle, relative to the planar surface, such that the second laser beam is reflected off the planar surface and exits the optical block parallel to the first laser beam exiting from the optical block, the separation based on a location of the entry of the first laser beam into the optical block. The separation of the exiting first and second laser beams is controlled by the selected translation distance.

公开(公告)号：US11650042B2

公开(公告)日：2023-05-16

申请号：US16414971

申请日：2019-05-17

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC.

Inventor： Christopher E. Saxer ,  Mark S. Branham ,  Jacob D. Garan

IPC: G01B9/02 ,  G01B11/16 ,  G02B27/10 ,  G02B27/12 ,  G02B27/48 ,  G01B9/02098 ,  G02B27/09 ,  G01S7/481

CPC classification number: G01B9/02098 ,  G01B9/02087 ,  G01B9/02095 ,  G01B11/162 ,  G01S7/4815 ,  G02B27/0955 ,  G02B27/106 ,  G02B27/123 ,  G02B27/48

Abstract: A laser transmission apparatus utilizing multiple laser beams and beam paths with a diverger lens to provide an illumination pattern that can compensate for lateral movement of the platform during shearography is provided. Further, this optical setup requires no moving parts and does not reduce power of the laser beams as they move through the individual components thereof. From the perspective of the surface being scanned or inspected, the present disclosure may provide two laser images of a single surface that appear to be identical despite the fact that they were taken from two different spatial positions of the moving platform.

公开(公告)号：US20220011089A1

公开(公告)日：2022-01-13

申请号：US16924876

申请日：2020-07-09

Applicant: BAE Systems Information and Electronic Systems Integration Inc.

Inventor： Jacob D. Garan ,  Mark S. Branham ,  Christopher E. Saxer

IPC: G01B9/02

Abstract: A splitting and recombining optical component with an increased field of view while maintaining or only minimally increasing the space requirements therefor is provided. Further, the combination of the changes in physical geometry and refractive index of the beam splitting and recombining optical device can increase the field of view of a system while maintaining, or even reducing, the mass of the system in which the present beam splitting and recombining optic may be utilized