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    METHOD OF MAKING REPLICAS AND COMPOSITIONS FOR USE THEREWITH
    21.
    发明专利
    METHOD OF MAKING REPLICAS AND COMPOSITIONS FOR USE THEREWITH 未知

    公开(公告)号：CA2280915A1

    公开(公告)日：1998-08-20

    申请号：CA2280915

    申请日：1998-02-11

    Applicant: PHYSICAL OPTICS CORP

    Inventor： LATCHINIAN JACK ,  SAVANT GAJENDRA

    IPC: G02B5/02 ,  B29C39/10 ,  B29C39/24 ,  B29C41/26 ,  B29D11/00 ,  C08F2/50 ,  F21V8/00 ,  G02B5/04 ,  G02B6/122

    Abstract: Compositions and methods for replication are described. A method includes: providing a first submaster (10) having a first topography; providing a carrier (35) having a first side and a second side; coating the first side with a first resin (30) having a first viscosity; pressing the first topography against the first resin (30); replicating the first topography in the first resin (30) as a first replica surface; increasing the first viscosity; releasing the first replica surface from the first topography; providing a second submaster having a second topography; coating the second side with a second resin having a second viscosity; pressing the second topography against the second resin; replicating the second topography in the second resin as a second replica surface; increasing the second viscosity; and releasing the second replica surface from the second topography. The compositions and methods provide advantages in that surface topography is replicated with enhanced overall cost effectiveness.

    METHOD OF MAKING REPLICAS AND COMPOSITIONS FOR USE THEREWITH
    24.
    发明专利
    METHOD OF MAKING REPLICAS AND COMPOSITIONS FOR USE THEREWITH 未知

    公开(公告)号：CA2280915C

    公开(公告)日：2007-11-27

    申请号：CA2280915

    申请日：1998-02-11

    Applicant: PHYSICAL OPTICS CORP

    Inventor： LATCHINIAN JACK ,  SAVANT GAJENDRA

    IPC: B29D11/00 ,  G02B5/02 ,  B29C39/10 ,  B29C39/24 ,  B29C41/26 ,  C08F2/50 ,  F21V8/00 ,  G02B5/04 ,  G02B6/122

    Abstract: Compositions and methods for replication are described. A method includes: providing a first submaster (10) having a first topography; providing a carrier (35) having a first side and a second side; coating the first side with a first resin (30) having a first viscosity; pressing the first topography against the first resin (30); replicating the first topography in the first resin (30) as a first replica surface; increasing th e first viscosity; releasing the first replica surface from the first topography; providing a second submaster having a second topography; coating the second side with a second resin having a second viscosity; pressing the seco nd topography against the second resin; replicating the second topography in the second resin as a second replica surface; increasing the second viscosity; and releasing the second replica surface from the second topography. The compositions and methods provide advantages in th at surface topography is replicated with enhanced overall cost effectiveness.

    LOBSTER EYE X-RAY IMAGING SYSTEM AND METHOD OF FABRICATION THEREOF
    27.
    发明专利
    LOBSTER EYE X-RAY IMAGING SYSTEM AND METHOD OF FABRICATION THEREOF 未知

    公开(公告)号：CA2616690A1

    公开(公告)日：2007-02-08

    申请号：CA2616690

    申请日：2006-07-15

    Applicant: PHYSICAL OPTICS CORP

    Inventor： SAVANT GAJENDRA ,  LEE KANG ,  GERTSENSHTEYN MICHAEL ,  FORRESTER THOMAS ,  JANNSON TOMASZ

    IPC: G01N23/201

    Abstract: A Lobster Eye X-ray Imaging System based on a unique Lobster Eye (LE) structure, X-ray generator, scintillator-based detector and cooled CCD (or Intensified CCD) for real-time, safe, staring Compton backscatter X-ray detection of objects hidden under ground, in containers, behind walls, bulkheads etc. In contrast to existing scanning pencil beam systems, Lobster Eye X-Ray Imaging System's true focusing X-ray optics simultaneously acquire ballistic Compton backscattering photons (CBPs) from an entire scene irradiated by a wide-open cone beam from one or more X-ray generators. The Lobster Eye X-ray Imaging System collects (focuses) thousands of times more backscattered hard X-rays in the range from 40 to 120 keV (or wavelength lambda=0.31 to 0.1 Å) than current backscatter imaging sensors (BISs), giving high sensitivity and signal-to-noise ratio (SNR) and penetration through ground, metal walls etc. The collection efficiency of Lobster Eye X-ray Imaging System is optimized to reduce emitted X-ray power and miniaturize the device. This device is especially advantageous for and satisfies requirements of X-ray-based inspection systems, namely, penetration of the X-rays through ground, metal and other material concealments; safety; and man-portability. The advanced technology disclosed herein is also applicable to medical diagnostics and military applications such as mine detection, security screening and a like.

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