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    Light source reflector
    1.
    发明专利
    Light source reflector 审中-公开
    光源反射器

    公开(公告)号：JP2012099478A

    公开(公告)日：2012-05-24

    申请号：JP2011240098

    申请日：2011-11-01

    Applicant: Li-Cor Inc ,  リ−コール インコーポレーティッド

    Inventor： ECKLES ROBERT D

    IPC: F21V7/09 ,  F21S2/00 ,  F21V7/00 ,  F21V7/22 ,  F21Y101/02 ,  G01N21/64

    CPC classification number: F21V7/05 ,  F21Y2113/00 ,  F21Y2115/10

    Abstract: PROBLEM TO BE SOLVED: To provide a light source reflector.SOLUTION: The light source reflector includes a structure having three or more internal reflective surfaces defining a first light entry aperture and a second light exit aperture having an area that is greater than the area of the entry aperture. A single light source, or a plurality of uniformly distributed light sources, such as one or more LEDs, located proximal the entry aperture provides illumination, which impinges on the reflective surfaces from the entry aperture and is reflected off the surfaces to provide a substantially uniform illumination pattern exiting the exit aperture. The reflector advantageously allows for the use of a source (e.g., LED(s)) that is smaller than the targeted area of illumination and also avoids creating hot-spots as the reflector does not focus the light, but rather reflects mirror images of the source off of the reflective surfaces.

    Abstract translation: 要解决的问题：提供一种光源反射器。 解决方案：光源反射器包括具有限定第一光入射孔的三个或更多个内部反射表面和具有大于入射孔的面积的面积的第二光出射孔的结构。 位于入口孔附近的单个光源或多个均匀分布的光源（诸如一个或多个LED）提供照明，其从入射孔射入反射表面并从表​​面反射以提供基本均匀的 离开出口孔的照明图案。 反射器有利地允许使用小于目标照明区域的源（例如，LED），并且还避免了由于反射器不聚焦光而产生热点，而是反映了镜像 源于反射面。 版权所有（C）2012，JPO＆INPIT

    Gas analyzer
    3.
    发明专利
    Gas analyzer 未知

    公开(公告)号：AU2012200272A1

    公开(公告)日：2012-02-09

    申请号：AU2012200272

    申请日：2012-01-17

    Applicant: LI COR INC

    Inventor： FURTAW MICHAEL D ,  ECKLES ROBERT D ,  BURBA GEORGIY G ,  MCDERMITT DAYLE K ,  WELLES JONATHAN M

    IPC: G01N21/25 ,  G01D21/02 ,  G01K7/02 ,  G01L7/00 ,  G01N21/00 ,  G01N21/01

    Abstract: GAS ANALYZER Gas analyzer systems and methods for measuring concentrations of gasses and in particular dry mole fraction of components of a gas. The systems and method allow for rapid measurement of the gas density and/or dry mole fraction of gases for a number of environmental monitoring applications, including high speed flux measurements. A novel coupling design allows for tool-free removal of a cell enclosing a flow path to enable in field cleaning of optical components. CELL AND SENSORS EASILY REMOVED FOR CLEANING CIRCULATION COLUMN 25 PROVIDES AIR PATH BETWEEN SOURCE AND 70 DETECTOR AND 20 MAINTAINS SEPARATION DISTANCE UPON 60-FIG.

    MULTI-FUNCTIONAL PIEZO ACTUATED FLOW CONTROLLER
    4.
    发明公开
    MULTI-FUNCTIONAL PIEZO ACTUATED FLOW CONTROLLER 审中-公开

    公开(公告)号：EP3175219A4

    公开(公告)日：2018-01-24

    申请号：EP15826804

    申请日：2015-07-27

    Applicant: LI-COR INC

    Inventor： ECKLES ROBERT D ,  JOHNSON MARK A ,  ANDERSON TYLER

    IPC: G01N7/00 ,  G01N1/20 ,  G01N1/22 ,  G01N33/00

    CPC classification number: G01N33/0031 ,  G01N33/004 ,  G01N33/0098 ,  G01N2001/2229 ,  G01N2001/2241

    Abstract: Multi-functional piezo-actuated flow control systems and methods for use in gas exchange analysis systems such as photosynthesis measurement systems. A fluid valve assembly module includes a housing structure including a plurality of ports and a plurality of fluid passageways interconnecting the ports, and a plurality of piezo-actuated valves in fluid communication with the fluid passageways, each valve including a piezo element that controls flow along a passageway, wherein the passageways and valves are arranged within the housing structure so as to define a fluid control module, which includes a flow swapping component, a flow splitting component and a flow pressurization component. The flow swapping component has first and second inlets and first and second output ports and is configured to receive a first fluid flow at the first inlet and a second fluid flow at the second inlet and in a first operational mode to direct the first fluid flow to the first output port and the second fluid flow to the second output port, and in a second operational mode to direct the first fluid flow to the second output port and the second fluid flow to the first output port. The flow splitting component has an input port, a third output port and a first outlet and is configured to receive an input fluid flow at the input port and to control an amount of the input fluid flow provided to the third output port and to the first outlet in a continuously adjustable manner, wherein the first outlet is fluidly connected to the first inlet of the flow swapping component and the third output port is adapted to be fluidly coupled with an external reservoir. The flow pressurization component has an entry port in fluid communication with a second outlet and is configured to receive a third fluid flow at the entry port and to control the pressure of the third fluid flow at the second outlet, wherein the second outlet is fluidly connected to the second inlet of the flow swapping component and the entry port is adapted to be fluidly coupled with the external reservoir.

    MULTI-PASS OPTICAL CELL WITH ACTUATOR FOR ACTUATING A REFLECTIVE SURFACE
    5.
    发明专利
    MULTI-PASS OPTICAL CELL WITH ACTUATOR FOR ACTUATING A REFLECTIVE SURFACE 未知

    公开(公告)号：CA2648623C

    公开(公告)日：2019-03-19

    申请号：CA2648623

    申请日：2007-03-07

    Applicant: LI COR INC

    Inventor： ECKLES ROBERT D ,  ANDERSON TYLER G

    IPC: G01N21/00 ,  G01N21/03 ,  G01N21/15

    Abstract: A multi-pass optical cell with an actuator for actuating a reflective surface is provided. In one preferred embodiment, an apparatus is provided comprising a first reflective surface, a second reflective surface, and a support structure supporting the first and second reflective surfaces. The support structure positions the first and second reflective surfaces to create an optical cell. The apparatus also comprises a source and a detector, which are positioned such that light emitted from the source is reflected in the optical cell at least one time between the first and second reflective surfaces before reaching the detector. The apparatus further comprises an actuator coupled with and operative to actuate the first reflective surface. In some embodiments, the actuator rotates the first reflective surface. Also, in some embodiments, the multi-pass optical cell is an open path multi-pass optical cell, while, in other embodiments, the multi-pass optical cell is a closed path multi-pass optical cell.

    POROMETER AND METHOD FOR STOMATAL MEASUREMENTS
    9.
    发明专利
    POROMETER AND METHOD FOR STOMATAL MEASUREMENTS 未知

    公开(公告)号：CA1138223A

    公开(公告)日：1982-12-28

    申请号：CA358814

    申请日：1980-08-22

    Applicant: LI COR INC

    Inventor： ECKLES ROBERT D

    IPC: G01N15/08 ,  G06F15/20

    Abstract: To measure stomatal resistance of a leaf, signals are obtained from: (1) a small thermocouple positioned adjacent to the leaf in a cuvette to measure temperature of the leaf without conducting excessive heat; (2) a thermistor in the cuvette chamber; and (3) a moisture sensor in the chamber. The moisture signal automatically controls a magnetically operated bypass valve from a source of air flowing through the cuvette chamber so that the moisture remains constant while the flow rate of the air is varied. The flow rate is measured in a flow meter having two laminar paths in series, composed of equal-length equal-diameter tubes but differing in the number of tubes, with the flow rate being measured in a different one of two tubes in each path for different scale measurements.

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