Invention Application
US20040051046A1 Highly sensitive imaging camera for space applications including detection of ultrahigh energy cosmic rays 有权
用于空间应用的高灵敏度成像摄像机,包括超高能量宇宙射线的检测

Highly sensitive imaging camera for space applications including detection of ultrahigh energy cosmic rays
Abstract:
An imaging camera includes a housing that defines a proximal end and a distal end. A Fresnel lens is installed in the proximal end of the housing. Moreover, a reflection mode photocathode is installed in the distal end of the housing opposite the Fresnel lens. An electron sensor is disposed in the center of the Fresnel lens. A conductive layer is disposed on the interior of the housing. Further, the Fresnel lens establishes plural concentric optically passive surfaces that are parallel to a central axis defined by the imaging camera. A conductive layer is disposed on each optically passive surface, and an electron lens is established by the conductive layer on the interior of the housing and the conductive layers on the Fresnel lens.
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