Apparatus and method for providing uniform illumination of a sample plane
    2.
    发明授权
    Apparatus and method for providing uniform illumination of a sample plane 失效
    用于提供样品平面的均匀照明的装置和方法

    公开(公告)号:US5268749A

    公开(公告)日:1993-12-07

    申请号:US736467

    申请日:1991-07-26

    Abstract: A conical illuminator for use in colorimetry, spectrophotometry, densitometry or sensitometry. In a preferred embodiment, light from a source such as a pulsed xenon lamp is integrated within a integrating chamber. The light source may be placed in a second integrating chamber adjacent to the aforementioned integrating chamber. Alternatively, the lamp may be placed directly within the integrating chamber. The light is emitted through an exit port and conformed to a conical configuration, according to a pre-selected standard, via an annular stop. An imaging optic relays the conformed light uniformly onto a sample plane. The annular stop is placed at or near the tangential focal length of the imaging optic. The annular stop may be coated with a light absorbing coating, or can be formed with a grooved or mirrored surface. Alternatively, in lieu of an integrating chamber, a diffuser may be employed for homogenizing the light. Various configurations of the imaging optic and annular stop are possible.

    Method for fabricating a channel device and tube connection
    3.
    发明授权
    Method for fabricating a channel device and tube connection 失效
    制造通道装置和管连接的方法

    公开(公告)号:US5027499A

    公开(公告)日:1991-07-02

    申请号:US341641

    申请日:1989-04-21

    Inventor: Otto J. Prohaska

    Abstract: The invention is concerned with a method for manufacturing a channel device, especially for recordings of thermal conductivity, viscosity, density, dielectric constants, refractive indices, etc. of materials such as fluids and gases (called samples), where the material under investigation is guided through a measuring channel with at least one sensor and at least one inlet and one outlet orifice for the sample. The invention also concerns the fabrication procedure of the channel device, especially the recording unit for determining the thermal conductivit, viscosity, density, dielectric constant, etc. of samples where the material under investigation is passed through or brought into a measuring channel which is equipped with sensors and actuators.

    Abstract translation: 本发明涉及用于制造通道装置的方法,特别是用于记录诸如流体和气体(称为样品)的材料的导热性,粘度,密度,介电常数,折射率等,其中所研究的材料是 通过具有至少一个传感器的测量通道和用于样品的至少一个入口和一个出口孔引导。 本发明还涉及通道装置的制造过程,特别是用于确定样品的热导率,粘度,密度,介电常数等的记录单元,其中所研究的材料通过或进入装备的测量通道 传感器和执行器。

    Sensor for gases or ions
    4.
    发明授权
    Sensor for gases or ions 失效
    气体或离子传感器

    公开(公告)号:US4872759A

    公开(公告)日:1989-10-10

    申请号:US216134

    申请日:1988-07-07

    Abstract: A sensor for gases or ions with a light source, a detector and a sensor layer all of which are attached to a carrier. A thin sensor film, the absorptivity of which changes through the action of the measurement medium, is arranged on a light waveguide, the one flat side of which covers a flat end face of the light source, the end face of the carrier and a plane receiving surface of the detector. Thus, a sensitive sensor, especially for gases, is obtained in which the sensor layer, the light source and the detector form an integrated structural unit.

    Abstract translation: 用于具有光源,检测器和传感器层的气体或离子的传感器,所有这些传感器都附接到载体。 通过测量介质的作用改变其吸收率的薄传感器膜布置在光波导上,该光波导的一个平坦侧覆盖光源的平坦端面,载体的端面和平面 接收表面。 因此,获得特别是用于气体的敏感传感器,其中传感器层,光源和检测器形成一体化的结构单元。

    LED TESTING PROCESS AND CORRECTION METHODS THEREFOR
    6.
    发明申请
    LED TESTING PROCESS AND CORRECTION METHODS THEREFOR 有权
    LED测试过程及其校正方法

    公开(公告)号:US20150198480A1

    公开(公告)日:2015-07-16

    申请号:US14587332

    申请日:2014-12-31

    Abstract: Disclosed is a method of generating a correction function for a light-emitting diode (LED) testing process. The method comprises the steps of: detecting light emitted by a reference LED and reflected from one or more inactive LEDs on a panel within a field of view of a detector, a number of said inactive LEDs within the field of view being varied such that uncorrected values of at least one optical parameter are derivable as a function of the number of inactive LEDs in the field of view; detecting light emitted by the reference LED, or by an active LED having identical optical properties to the reference LED, in the absence of any other LEDs, to determine at least one reference value for the or each said optical parameter; and calculating differences between the uncorrected values and the or each reference value to generate the correction function, the correction function being based on the number of inactive LEDs which are arranged within the field of view of the detector when the detector detects light emitted by an LED under test.

    Abstract translation: 公开了一种产生用于发光二极管(LED)测试过程的校正功能的方法。 该方法包括以下步骤:检测由参考LED发射并由检测器的视野内的面板上的一个或多个不活动的LED反射的光,视场内的所述非活动LED的数量是变化的,使得未校正 至少一个光学参数的值可以作为视野中的非活动LED的数量的函数导出; 在没有任何其他LED的情况下,检测由参考LED发射的光,或者通过与参考LED具有相同光学特性的有源LED,以确定所述光学参数或每个所述光学参数的至少一个参考值; 以及计算所述未校正值和所述或每个参考值之间的差异以产生所述校正功能,所述校正功能基于当所述检测器检测到由所述LED发射的光时,所述校正功能基于被布置在所述检测器的视场内的非活动LED的数量 被测试。

    Produce recognition method
    7.
    发明授权
    Produce recognition method 有权
    制作识别方法

    公开(公告)号:US06577983B1

    公开(公告)日:2003-06-10

    申请号:US09684414

    申请日:2000-10-06

    Applicant: Jie Zhu

    Inventor: Jie Zhu

    Abstract: A produce recognition method which determines an optimal number of candidate identifications in a candidate identification list. The method includes the steps of obtaining produce data associated with a produce item, determining distances between the produce data and reference produce data, determining confidence values from the distances, determining first confidence values which are greater than a threshold confidence value, displaying candidate identifications associated with the first confidence values, and recording an operator choice of one of the candidate identifications.

    Abstract translation: 一种产品识别方法,其确定候选标识列表中候选标识的最佳数量。 该方法包括以下步骤:获得与产品相关联的产品数据,确定产品数据和参考产品数据之间的距离,从距离确定置信度值,确定大于阈值置信度值的第一置信度值,显示相关联的候选标识 具有第一置信度值,并且记录候选标识之一的操作者选择。

Patent Agency Ranking