公开(公告)号：US20190162963A1

公开(公告)日：2019-05-30

申请号：US16302004

申请日：2017-04-10

Applicant: BAE SYSTEMS plc

Inventor： JAMES RAYMOND LEIGHTON ,  MICHAEL DAVID SIMMONDS ,  RORY THOMAS ALEXANDER MILLS

IPC: G02B27/01 ,  F21V8/00

Abstract: A waveguide structure for a head up display in which a reflective output coupling structure is formed of a separate, but connected, component to a main waveguide. Light is coupled from the main waveguide to the output coupling structure by evanescent wave coupling. In a method of manufacture for such a waveguide the output coupling structure is attached to the main waveguide using an optical feedback technique.

公开(公告)号：US20220019077A1

公开(公告)日：2022-01-20

申请号：US17396114

申请日：2021-08-06

Applicant: BAE SYSTEMS plc

Inventor： JAMES RAYMOND LEIGHTON ,  MICHAEL DAVID SIMMONDS ,  RORY THOMAS ALEXANDER MILLS

IPC: G02B27/01 ,  G02B27/00 ,  F21V8/00

Abstract: A waveguide structure for a head up display in which a reflective output coupling structure is formed of a separate, but connected, component to a main waveguide. Light is coupled from the main waveguide to the output coupling structure by evanescent wave coupling. In a method of manufacture for such a waveguide the output coupling structure is attached to the main waveguide using an optical feedback technique.

公开(公告)号：US20190162962A1

公开(公告)日：2019-05-30

申请号：US16302000

申请日：2017-04-10

Applicant: BAE SYSTEMS plc

Inventor： JAMES RAYMOND LEIGHTON ,  RORY THOMAS ALEXANDER MILLS ,  MICHAEL DAVID SIMMONDS

IPC: G02B27/01 ,  F21V8/00

CPC classification number: G02B27/0101 ,  G02B6/0025 ,  G02B6/0036 ,  G02B6/0055 ,  G02B6/0065 ,  G02B27/0081 ,  G02B27/0189 ,  G02B2027/011

Abstract: A waveguide structure for a head up display in which a reflective output coupling structure is formed of a separate, but connected, component to a main waveguide. In a method of manufacture for such a waveguide the output coupling structure may be formed by depositing a material on a main waveguide, impressing the reflective structure into that material, and curing the material.

公开(公告)号：US20150355394A1

公开(公告)日：2015-12-10

申请号：US14653618

申请日：2014-01-06

Applicant: BAE SYSTEMS PLC

Inventor： MOHMED SALIM VALERA ,  JAMES RAYMOND LEIGHTON

IPC: G02B5/18

Abstract: A diffraction grating 1 includes a surface 12 having grooves 14 therein, each groove 14 providing a diffracting surface for light incident upon the diffracting surface. The grooves 14 are separated from each other by lands 20 upon the surface 12. The lands 20 are of predetermined varying width, whereby the diffractive efficiency of the grating 1 varies across the extent of the grating 1.

Abstract translation: 衍射光栅1包括其中具有凹槽14的表面12，每个凹槽14为入射在衍射表面上的光提供衍射表面。 沟槽14在表面12上由平台20彼此分离。焊盘20具有预定的变化宽度，由此光栅1的衍射效率在光栅1的范围内变化。