公开(公告)号：WO1989005522A1

公开(公告)日：1989-06-15

申请号：PCT/US1988004178

申请日：1988-11-25

Applicant: HONEYWELL INC.

Inventor： HONEYWELL INC. ,  COMEY, David, M.

IPC: H01L31/02

CPC classification number: G01J5/06 ,  G01J5/061 ,  H01L31/02164

Abstract: A sharp edge aperture for use with radiation sensing apparatus to permit radiation to pass through a relatively thick layer of radiation absorbing material with a minimum of reflection off the edges of the opening by utilizing a thin layer of radiation blocking material overlaying the layer of radiation absorbing material.

公开(公告)号：WO1989005523A1

公开(公告)日：1989-06-15

申请号：PCT/US1988004179

申请日：1988-11-25

Applicant: HONEYWELL INC.

Inventor： HONEYWELL INC. ,  COMEY, David, M. ,  DENLEY, Brian, W. ,  WHITE, William, J.

IPC: H01L31/02

CPC classification number: G01J5/06 ,  H01L31/02164

Abstract: A cold shield for an array of detectors of predetermined shape comprising a first cover of radiation blocking material formed with parallel rows of apertures and lying a first distance away from the detectors and a second cover of radiation blocking material formed with a plurality of apertures of generally the predetermined shape therethrough and lying a second distance, smaller than the first distance, away from the detectors so as to minimize background radiation from reaching the detectors while permitting desired radiation approaching the array from any of a plurality of angles to reach the detectors.