Enhancements in radiant energy transducer systems
    82.
    发明授权
    Enhancements in radiant energy transducer systems 失效
    辐射能量传感器系统的增强

    公开(公告)号:US6064061A

    公开(公告)日:2000-05-16

    申请号:US52070

    申请日:1998-03-31

    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。

    Apparatus for projecting electromagnetic radiation with a tailored
intensity distribution
    83.
    发明授权
    Apparatus for projecting electromagnetic radiation with a tailored intensity distribution 失效
    用于以适合的强度分布投射电磁辐射的装置

    公开(公告)号:US5967652A

    公开(公告)日:1999-10-19

    申请号:US50175

    申请日:1998-03-30

    摘要: Apparatus is disclosed that efficiently projects electromagnetic radiation over a predetermined spherical sector with a tailored intensity distribution. The apparatus includes a base having a cavity and aperture that faces the spherical sector to be illuminated, with a flat, ring-shaped shoulder surrounding the aperture. The apparatus further includes a mask spaced over the aperture and a baffle projecting from the mask toward the aperture. The base, the mask, and the baffle are formed of a material having an outer surface with a significant diffuse, reflective characteristic. A source emits electromagnetic radiation (e.g., visible light) into the base cavity, and the base, mask and baffle are configured to redirect this radiation outwardly with the tailored intensity distribution (e.g., a uniform distribution) over the predetermined spherical sector (e.g., a hemisphere, or 2 .pi.steradians).

    摘要翻译: 公开了一种设备,其具有经过定制的强度分布在预定的球形扇区上有效地投射电磁辐射。 该装置包括具有面向要被照亮的球形扇形体的空腔和孔的基座,环绕该孔的平坦的环形肩部。 该装置还包括在孔上间隔开的掩模和从掩模向孔突出的挡板。 底座,掩模和挡板由具有显着的漫反射特性的外表面的材料形成。 源将电磁辐射(例如,可见光)发射到基体腔中,并且基底,掩模和挡板被配置成通过在预定的球形扇区上的调整的强度分布(例如,均匀分布)向外重定向该辐射(例如, 一个半球,或2 pi steradians)。

    Quadrant light detector
    84.
    发明授权
    Quadrant light detector 失效
    象限光检测器

    公开(公告)号:US5877490A

    公开(公告)日:1999-03-02

    申请号:US908677

    申请日:1997-08-07

    摘要: A quadrant light detector that employs the concept of constructed occlusion to improve its accuracy and by incorporating baffles within the design to improve its detection response to incoming light having an incidence angle neat the horizon, and to divide a diffusely reflective cavity into quadrants. The quadrant detector is able to determine the direction, or azimuth and elevation, to the light source anywhere within a sector of a hemisphere or a sphere.

    摘要翻译: 一个象限光检测器采用构造遮挡的概念来提高其精度,并通过在设计中引入挡板来改善其对入射光的检测响应,入射光具有整齐的地平线,并将漫反射腔分成象限。 象限检测器能够确定在半球或球体的扇区内任何地方的光源的方向或方位角和仰角。

    Subject operated pupilometer
    86.
    依法登记的发明
    Subject operated pupilometer 失效
    受试者操作瞳孔仪

    公开(公告)号:USH574H

    公开(公告)日:1989-02-07

    申请号:US90481

    申请日:1987-08-28

    IPC分类号: A61B3/11 A61B3/14

    CPC分类号: A61B3/14 A61B3/112

    摘要: An instrument for the self-examination of the eye of a subject is described which comprises a housing including a controllable light source for selectively illuminating the eye, an optical system for projecting along an optical axis an image of the eye so illuminated, photographic film for recording the image, the optical system being sized to provide a predetermined magnification of the image on the film, a transparent grid plate disposed along the optical axis between the light source and film for superimposing a set of calibrated lines onto the image of the eye, and a controllable shutter in the optical system for selectively exposing the film to the superposition of the images of the eye and of the calibrated lines. A flexible light shield surrounds the light source for resiliently contacting the contour of the face of the subject whereby extraneous light is excluded.

    Technique for lensless optical positioning with a plurality of light collectors
    90.
    发明授权
    Technique for lensless optical positioning with a plurality of light collectors 有权
    具有多个集光器的无镜头光学定位技术

    公开(公告)号:US07126105B2

    公开(公告)日:2006-10-24

    申请号:US10938617

    申请日:2004-09-13

    申请人: David P. Ramer

    发明人: David P. Ramer

    IPC分类号: H01J40/14

    CPC分类号: G01S3/781 G01S3/783 G01S3/784

    摘要: Systems and methods for determining a position of an object are provided by the present invention. Light is captured by at least one collector. Each collector has a first opening through which light enters that is larger than a second opening through which light exits. The exiting light is used by at least one light detector to generate signals. The position of the object is determined based upon the generated signals.

    摘要翻译: 用于确定物体位置的系统和方法由本发明提供。 光被至少一个收集器捕获。 每个收集器具有第一开口,光通过该第一开口大于第二开口,光从该第二开口出射。 出射光由至少一个光检测器使用以产生信号。 基于产生的信号确定对象的位置。