Methods for determining optical characteristics using light receivers of first and second numerical apertures and first and second critical heights
    1.
    发明授权
    Methods for determining optical characteristics using light receivers of first and second numerical apertures and first and second critical heights 有权
    使用第一和第二数值孔径的光接收器和第一和第二临界高度确定光学特性的方法

    公开(公告)号:US07119892B2

    公开(公告)日:2006-10-10

    申请号:US11118903

    申请日:2005-04-29

    摘要: Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of an object are disclosed. Perimeter receiver fiber optics are spaced apart from a source fiber optic and receive light from the surface of the object being measured. Light from the perimeter fiber optics pass to a variety of filters. The system utilizes the perimeter receiver fiber optics to determine information regarding the height and angle of the probe with respect to the object being measured. Under processor control, the optical characteristics measurement may be made at a predetermined height and angle. Various color spectral photometer arrangements are disclosed. Translucency, fluorescence, gloss and/or surface texture data also may be obtained. Audio feedback may be provided to guide operator use of the system. The probe may have a removable or shielded tip for contamination prevention. A method of producing prostheses based on measured data also is disclosed. Measured data also may be stored and/or organized as part of a data base.

    摘要翻译: 公开了用于确定物体的颜色或其他光学特性的光学特性测量系统和方法。 周边接收器光纤与源光纤间隔开,并接收来自待测物体表面的光。 来自周边光纤的光通过各种滤光片。 该系统利用周边接收机光纤来确定关于探头相对于被测量物体的高度和角度的信息。 在处理器控制下,可以以预定的高度和角度进行光学特性测量。 公开了各种颜色光谱光度计装置。 也可以获得半透明度,荧光,光泽度和/或表面纹理数据。 可以提供音频反馈以指导操作者使用该系统。 探头可能具有可移除或屏蔽的尖端,以防止污染。 还公开了一种基于测量数据生产假体的方法。 测量数据也可以作为数据库的一部分存储和/或组织。

    Light to frequency converter optical sensor with electronic bias and adjustable gain
    3.
    发明授权
    Light to frequency converter optical sensor with electronic bias and adjustable gain 有权
    具有电子偏置和可调增益的光到变频器光学传感器

    公开(公告)号:US09228891B2

    公开(公告)日:2016-01-05

    申请号:US14217270

    申请日:2014-03-17

    IPC分类号: H01J40/14 G01J1/44 H03M1/18

    CPC分类号: G01J1/44 H03M1/18 H03M1/60

    摘要: An improved light to frequency converter optical sensor and method using electronic bias. Adjustable gain also may be provided. A summing circuit sums electrical current from a photo detector and electrical current from a bias current circuit and provides the summed current to an integrator. A threshold detector comparator circuit has an input coupled to the output of the integrator and an output providing a series of pulses. The series of pulses has a frequency based on the light received by the photo detector and the electrical current from the bias current circuit.

    摘要翻译: 一种改进的光到变频器光学传感器和使用电子偏置的方法。 也可以提供可调增益。 求和电路将来自光电检测器的电流和来自偏置电流电路的电流相加,并将积分电流提供给积分器。 阈值检测器比较器电路具有耦合到积分器的输出的输入和提供一系列脉冲的输出。 一系列脉冲具有基于光电检测器接收的光和来自偏置电流电路的电流的频率。

    Apparatus and method for measuring optical characteristics of an object
    4.
    发明授权
    Apparatus and method for measuring optical characteristics of an object 失效
    用于测量物体的光学特性的装置和方法

    公开(公告)号:US07397562B2

    公开(公告)日:2008-07-08

    申请号:US11475717

    申请日:2006-06-26

    IPC分类号: G01J3/51

    摘要: A method for determining spectral characteristics of an object is disclosed. A probe is positioned in proximity relative to the object and provides light to a surface of the object and receives light from the object. One or more critical heights are defined below which no specularly refelcted light is received and propagated. Prior to positioning the probe in proximity relative to the object, a plurality of position-sensitive calibration/normalization reference and a plurality of calibration/normalization measurements are taken with the probe at a plurality of predetermined positions with respect to the calibration/normalization reference. The intensity of light received is determined in a plurality of spectral bands with one or more measurements. The spectral characteristics of the object are determined based on the one or more measurements and based on data taken from one or more of the calibration/normalization measurements.

    摘要翻译: 公开了一种用于确定物体的光谱特性的方法。 探针相对于物体定位在邻近处,并且向对象的表面提供光并接收来自物体的光。 下面定义了一个或多个关键的高度,其中没有镜面反射光被接收和传播。 在将探针定位在相对于物体附近之前,多个位置敏感的校准/归一化参考和多个校准/归一化测量在探针相对于校准/归一化参考的多个预定位置处被采集。 在具有一个或多个测量的多个光谱带中确定所接收的光的强度。 基于一个或多个测量并且基于从一个或多个校准/归一化测量获取的数据来确定对象的光谱特性。