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1.发明授权公开(公告)号：US07184200B2
公开(公告)日：2007-02-27
申请号：US11012342
申请日：2004-12-16
CPC分类号： G01J1/04 , G01J1/0204 , G01J1/0414 , G01J2001/0276
摘要： An IR limiting device for a detector that is based on a micro-optomechanical cantilever array is disclosed. In the normal state, each microcantilever device in the array behaves like a mirror that reflects the infrared signal to the detector. The microcantilever device absorbs radiation outside the desired infrared region. When the radiation is stronger than a predetermined threshold, the microcantilever device bends as a result of thermo-mechanical forces, and it reflects the signal away from the detector, thereby limiting the radiation. The advantage of such a system is that each pixel in the detector can be addressed individually, and the limiting is localized.
摘要翻译： 公开了一种用于基于微机电悬臂阵列的检测器的IR限制装置。 在正常状态下，阵列中的每个微型悬臂装置的行为就像将红外信号反射到检测器的反射镜。 微悬臂装置吸收所需红外区域外的辐射。 当辐射强于预定阈值时，微悬臂装置由于热机械力而弯曲，并且将信号反射离开检测器，从而限制辐射。 这种系统的优点在于可以单独寻址检测器中的每个像素，并限制本地化。
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公开(公告)号：US07494232B2
公开(公告)日：2009-02-24
申请号：US11012138
申请日：2004-12-16
CPC分类号： H04N5/33 , G01J1/04 , G01J1/0488 , G01J2001/0276 , G02B5/208
摘要： Method for limiting amount of radiation impinging on a radiation-sensitive detector device by directing radiation toward the detector, permitting the radiation to impinge upon the detector device when the radiation is below a predetermined threshold, and utilizing radiation having wavelengths different from signals of interest to initiate limiting of the radiation impinging upon the detector when the predetermined threshold is exceeded. The optical limiter includes an IR limiting layer pair selected so that energy from visible and near infrared radiation activates the optical limiter. The limiting layer pair may includes a layer closer to the source of radiation of e.g. vanadium dioxide, vanadium sesquioxide, or germanium crystal and a layer further from the source of radiation of e.g. chalcogenide glass, germanium crystal, or sodium chloride crystal.
摘要翻译： 用于通过将辐射引向检测器来限制照射在辐射敏感检测器装置上的辐射量的方法，当辐射低于预定阈值时，允许辐射撞击检测器装置，并且利用与感兴趣的信号不同的波长的辐射 当超过预定阈值时，开始限制入射到检测器上的辐射。 光限制器包括选择的IR限制层对，使得来自可见光和近红外辐射的能量激活光限制器。 限制层对可以包括更接近例如辐射源的层。 二氧化钒，二氧化钒钒或锗晶体，以及远离辐射源的层。 硫族化物玻璃，锗晶体或氯化钠晶体。
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