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公开(公告)号：US6007225A
公开(公告)日：1999-12-28
申请号：US34760
申请日：1998-03-04
CPC分类号： G02B6/0006 , G02B6/262 , G02B6/0001
摘要： A conical deflector receives light from a source through an opening at the narrow end of the cone. In one embodiment, an optical fiber bundle supplies light directly into the cone. In another embodiment, the conical deflector receives light via an optical integrating cavity. A substantial portion of the inner surface of the cones has a specular reflectivity. The entire surface may be uniformly specular (e.g., highly specular). Alternatively, one or more sections of the inner walls of the cone may have a diffuse reflectivity or a different degree of specular reflectivity (e.g., quasi-specular). The deflector is dimensioned relative to a narrow, desired field of view and the light source to deflect light that would otherwise pass out of the desired field of view, so as to efficiently illuminate the desired field of view. The conical deflector provides a substantially uniform light intensity distribution over the desired field of view.
摘要翻译： 锥形偏转器通过锥体的窄端处的开口接收来自源的光。 在一个实施例中，光纤束将光直接供应到锥体中。 在另一个实施例中，锥形偏转器经由光学积分腔接收光。 锥体的内表面的大部分具有镜面反射率。 整个表面可以是均匀的镜面（例如高度镜面的）。 或者，锥体的内壁的一个或多个部分可以具有漫反射率或不同程度的镜面反射率（例如准镜面）。 偏转器的尺寸相对于狭窄的期望的视场和光源来偏转否则将偏离所需视场的光，以便有效地照亮期望的视场。 锥形偏转器在期望的视场上提供基本均匀的光强度分布。
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公开(公告)号：US6064061A
公开(公告)日：2000-05-16
申请号：US52070
申请日：1998-03-31
CPC分类号： G01J1/06 , G01D5/264 , G01J1/02 , G01J1/0266 , G01J1/04 , G01J1/0414 , G01J1/0422 , G01J1/0425 , G01J1/0474
摘要： Many applications of radiant energy transducer systems call for specific performance characteristics over desired fields of view or footprints on identified surfaces. Constructive occlusion utilizes a mask sized and positioned to occlude an active optical area, such as an aperture of a diffusely reflective cavity, so as to provide a tailored performance characteristic. Use of principles of constructive occlusion alone or in combination with several other techniques enable tailoring of the illumination distribution or the sensitivity profile of a radiant energy transducer system to meet the demands of specific applications. One mechanism used to further tailor performance involves a non-diffuse reflective shoulder along a peripheral section of the mask and cavity type system. Another technique involves using a retro-reflective surface, for example along a portion of the periphery of the system, to limit the angular field of view and to redirect light back into the system for emission within the desired field. Another technique involves use of a reflective wall along one side of the system, to limit the field of view to angles on the opposite side of the axis of the mask and cavity configuration.
摘要翻译： 辐射能量传感器系统的许多应用需要在所识别的表面上的所需视野或占地面积上具有特定的性能特征。 构造性遮挡使用尺寸和定位的掩模来遮蔽诸如扩散反射腔的孔的有源光学区域，以便提供定制的性能特征。 单独使用建构性遮挡原理或与其他几种技术结合使用可以调整辐射能量传感器系统的照明分布或灵敏度分布，以满足特定应用的需求。 用于进一步调整性能的一种机制包括沿掩模和腔型系统的周边部分的非漫反射肩。 另一技术涉及使用逆反射表面，例如沿着系统的周边的一部分来限制角视场，并将光重定向到系统中，以便在期望的场内发射。 另一种技术涉及使用沿着系统一侧的反射壁，以将视场限制在掩模和腔体构型的相对侧上的角度上。
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