发明授权
US3657596A Electron image device having target comprising porous region adjacent conductive layer and outer, denser region
失效
具有包含多个区域相邻层和外部的传感器区域的目标的电子图像装置
- 专利标题： Electron image device having target comprising porous region adjacent conductive layer and outer, denser region
- 专利标题（中）： 具有包含多个区域相邻层和外部的传感器区域的目标的电子图像装置
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申请号： US3657596D申请日： 1965-05-20
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公开(公告)号： US3657596A公开(公告)日： 1972-04-18
- 发明人: GOETZE GERHARD W , BOERIO ALVIN H
- 申请人： WESTINGHOUSE ELECTRIC CORP
- 专利权人： Westinghouse Electric Corp
- 当前专利权人： Westinghouse Electric Corp
- 优先权： US45743065 1965-05-20
- 主分类号： H01J29/44
- IPC分类号： H01J29/44 ; H01J31/36 ; H01J31/50 ; H04N1/14 ; H04N1/23 ; H04N1/29 ; H01J31/58 ; H01J31/28
摘要：
This invention relates to such electron image devices as television camera tubes and image intensifier tubes and includes in one illustrative embodiment an electrically conductive member upon which there is disposed a first layer or region of a secondary emissive material deposited in a porous form to allow conduction of the secondary electrons through the voids of the porous material, and a second layer or region of greater density than the first layer disposed upon the first region to inhibit the escape of the secondary electrons emitted within the volume of the first layer.