公开(公告)号：US10371625B1

公开(公告)日：2019-08-06

申请号：US15190633

申请日：2016-06-23

Applicant: Lockheed Martin Corporation

Inventor： David R. Twede ,  Suresh Subramanian ,  Richard William Guthrie

IPC: G01N21/21 ,  G01N21/17

Abstract: Identification of reflective surfaces as being associated with optical threats is disclosed. A first laser signal is emitted from a first laser system at a first wavelength and a first emission circular polarization orientation. A first signal reflection of the first laser signal from a reflective surface at the first wavelength having a first return circular polarization orientation that is different from the first emission circular polarization orientation is detected. A first return quantification of the first signal reflection, based at least in part on an amount of circular polarization of the first signal reflection, is determined. It is determined that the reflective surface is associated with a threat optic based at least in part on the first return quantification.

公开(公告)号：US09521336B1

公开(公告)日：2016-12-13

申请号：US13891692

申请日：2013-05-10

Applicant: Lockheed Martin Corporation

Inventor： David R. Twede ,  Scott L. Roberson ,  Suresh Subramanian

IPC: H04N5/76 ,  H04N5/335

CPC classification number: H04N5/335 ,  G01J1/58 ,  G01J3/0208 ,  G01J3/28 ,  G01J3/2803 ,  H04N5/332 ,  H04N9/045

Abstract: A multi-spectral photon converting imaging apparatus and method are disclosed. A plurality of photons in a first received band and a plurality of photons in a second received band are received by a first nanoparticle photon conversion material. The first nanoparticle photon conversion material converts the plurality of photons in the first received band to a plurality of photons in a first converted band, and the plurality of photons in the second received band to a plurality of photons in a second converted band. An image sensor receives the plurality of photons in the first converted band and the plurality of photons in the second converted band, and generates a digitized image of the scene based on the plurality of photons in the first converted band and the plurality of photons in the second converted band.

Abstract translation: 公开了一种多光谱光子转换成像装置和方法。 第一接收频带中的多个光子和第二接收频​​带中的多个光子被第一纳米颗粒光子转换材料接收。 第一纳米颗粒光子转换材料将第一接收频带中的多个光子转换成第一转换频带中的多个光子，并将第二接收频​​带中的多个光子转换成第二转换频带中的多个光子。 图像传感器接收第一转换频带中的多个光子和第二转换频带中的多个光子，并且基于第一转换频带中的多个光子和第一转换频带中的多个光子来生成场景的数字化图像 第二转换带。