公开(公告)号：US20150155676A1

公开(公告)日：2015-06-04

申请号：US14186036

申请日：2014-02-21

Applicant: Sensors Unlimited, Inc.

Inventor： Marc Hansen

IPC: H01S3/00 ,  H01L25/16

CPC classification number: H01S3/0078 ,  F41G1/35 ,  G02B5/0278 ,  G02B27/0927 ,  G02B27/0938 ,  H01L25/167 ,  H01L2924/0002 ,  H01L2924/00

Abstract: An illuminator includes a short wave infrared (SWIR) laser, a lens collimator, a first beam shaping diffuser, a second beam shaping diffuser, and a bandpass filter. The lens collimator is optically coupled to the laser for diverging a beam emitted by the laser. The first beam shaping diffuser is optically coupled to the lens collimator to diffuse a diverged beam produced by the lens collimator. The second beam shaping diffuser is optically coupled to the first beam shaping diffuser to further diffuse a diffused beam produced by the first beam shaping diffuser. The bandpass filter is optically connected to the second beam shaping diffuser configured to filter the emissions of a further diffused beam produced by the second beam shaping diffuser.

Abstract translation: 照明器包括短波红外（SWIR）激光器，透镜准直仪，第一光束整形漫射器，第二光束整形漫射器和带通滤光器。 透镜准直仪光学耦合到激光器以分散由激光器发射的光束。 第一光束成形扩散器光学耦合到透镜准直器以扩散由透镜准直器产生的发散光束。 第二光束成形扩散器光耦合到第一光束成形扩散器以进一步扩散由第一光束成形扩散器产生的漫射光束。 带通滤波器光学连接到第二光束整形漫射器，其被配置为滤除由第二光束成形扩散器产生的另外的扩散光束的发射。