Pyroelectric detector comprising nucleating material wettable by aqueous solution of pyroelectric material
AssigneeU.S. Philips Corporation
InventorsAndrew Alfred Turnbull, Harry Sewell
Life of this patent
Estimating the term…
Abstract
A pyroelectric detector employing a substrate supporting a thin, i.e., 0.5 to 5 .mu.m thick, solid layer of pyroelectric material with an intermediate layer of nucleating material, i.e., a material which is wettable by a solution of the pyroelectric material so that an adherent continuous layer is formed thereon. The pyroelectric layer may be in the form of a mosaic of islands separated by an electrically conductive material covered with an electrically insulating material.
Claims12
A pyroelectric detector comprising a substrate, supporting a thin, solid layer of pyroelectric material selected from the group comprising TGS and triglycine fluoroberyllate which are partly or wholly deuterated and a layer of nucleating material selected from the group consisting of aluminum, titanium, matt carbon, magnesium fluoride aluminum oxide, and silica and wettable by an aqueous solution of the pyroelectric material and to which the pyroelectric material adheres intermediate the pyroelectric layer and the substrate.
A pyroelectric target for a thermal-image camera tube comprising a membrane supporting a first layer of nucleating material selected from the group consisting of aluminum, titanium, matt carbon magnesium fluoride aluminum oxide, and silica and wettable by a solution of a pyroelectric material, an aqueous second layer of solid pyroelectric material adherent on and covering the first layer, said membrane having a low thermal capacity and a low thermal conductance parallel to the surface thereof supporting the pyroelectric material, said second layer having a thickness between about 0.5 and 5 .mu.m and comprising a mosaic of spaced portions of pyroelectric material.
Dependencies are inferred from the claim text.