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    METHOD AND APPARATUS FOR GENERATING A CONTROL SIGNAL
    4.
    发明申请
    METHOD AND APPARATUS FOR GENERATING A CONTROL SIGNAL 审中-公开
    用于产生控制信号的方法和装置

    公开(公告)号：WO1997043607A1

    公开(公告)日：1997-11-20

    申请号：PCT/US1997008090

    申请日：1997-05-09

    Applicant: SAYAG, Michel

    IPC: G01J01/04

    CPC classification number: G07C9/00158 ,  G06F3/021 ,  G06F3/0213 ,  G06F3/03545 ,  G06F3/03547 ,  G06F3/0421 ,  G06F21/32 ,  G06F21/83 ,  G06F2203/0338 ,  G06F2203/04109 ,  G06F2211/007 ,  G06K9/00046

    Abstract: A method and apparatus for generating a control signal which corresponds to movement of an object in contact with a first surface are described. The apparatus includes a platen (104) having the first surface. The platen (104) is characterized by a critical angle beyond which light incident upon the first surface is not transmitted. A source of electromagnetic radiation (106) emits electromagnetic radiation through the platen (104) thereby illuminating the object. A detector (110) having a plurality of sectors receives a portion of the electromagnetic radiation diffused by the object and transmitted through the platen beyond the critical angle. The sectors of the detector generate charge in response to the incident electromagnetic radiation. Conversion circuitry (112) then converts the charge generated in the detector to the control signal, which in a specific embodiment is for controlling the movement of a pointer on a display.

    Abstract translation: 描述了一种用于产生对应于与第一表面接触的物体的运动相对应的控制信号的方法和装置。 该设备包括具有第一表面的压板（104）。 压板（104）的特征在于临界角度，超过该临界角度，入射到第一表面上的光不被传送。 电磁辐射源（106）通过压板（104）发射电磁辐射，从而照射物体。 具有多个扇区的检测器（110）接收由物体扩散的电磁辐射的一部分并通过压板传送超过临界角。 检测器的扇区响应入射的电磁辐射而产生电荷。 转换电路（112）然后将在检测器中产生的电荷转换成控制信号，该控制信号在特定实施例中用于控制指示器在显示器上的移动。

    Optical shields for optical sensing devices
    6.
    发明公开
    Optical shields for optical sensing devices 失效
    光学传感器件光学透镜

    公开(公告)号：EP0125016A3

    公开(公告)日：1987-02-04

    申请号：EP84302329

    申请日：1984-04-05

    Applicant: FUJITSU LIMITED

    Inventor： Miyamoto, Yoshihiro c/o Fujitsu Limited

    IPC: G01J01/04

    CPC classification number: G01J1/06 ,  G01J5/061 ,  G01J2005/283 ,  H01L31/02164 ,  Y10T428/24165

    Abstract: An image sensing device has an optical shield (170), in front of an image sensing array (110) of the device, with a multi-aperture structure. The optical shield (170) has many shield elements (177) forming a grid-like or cellular structure. With such a structure, the solid angle of the field of view is almost the same for each sensing element (120) of a sensing array (110), resulting in the reduction of 'shading' effects and an improvement in signal or noise ratio. The distance (H) between the shield (170) and the array (110) can be reduced as compared with previous devices. The sensing elements (120) are not shielded individually, so the pitch of the shield elements (177) can be larger than that of the sensing elements (120), which makes it easier and less costly to fabricate the shield.

    SYSTEM FOR MONITORING ARC SENSOR PROTECTING WINDOW
    7.
    发明申请
    SYSTEM FOR MONITORING ARC SENSOR PROTECTING WINDOW 审中-公开
    用于监控电弧传感器保护窗的系统

    公开(公告)号：WO1992017754A1

    公开(公告)日：1992-10-15

    申请号：PCT/JP1992000409

    申请日：1992-04-02

    Applicant: FANUC LTD ,  TORII, Nobutoshi ,  NIHEI, Ryo ,  WAKIO, Hiroshi

    Inventor： FANUC LTD

    IPC: G01J01/04

    CPC classification number: G01J1/18 ,  B23K9/10 ,  G01N2021/157 ,  G01N2021/5957 ,  G01N2201/12753

    Abstract: An object of the title system is to appropriately determine a replacement time for arc sensor protecting windows by use of a function originally provided to an arc sensor. The system for monitoring an arc sensor protecting window according to the present invention is constructed such that an unused (new) arc sensor protecting window (28) is mounted on an arc sensor unit (20), and a reference reflecting surface (30) is provided at a position a predetermined distance apart from the front surface of the arc sensor protecting window (28). In this state, a laser beam (26) scans the reference reflecting surface (30) to receive a reflected light (27). The received light is stored in a memory as a first received light amount. Subsequently, the arc sensor protecting window (28) is used as it is for arc welding, and thereafter, similarly to the case of the unused arc sensor protecting window, the reflected light (27) is received from the reference reflecting surface (30). This received light amount is stored as a second received light value. A degree of contamination of the arc sensor protecting window (28) is discriminated on the basis of the first and second received light amounts, whereby it is determined whether the replacement time for the arc sensor protecting windows (28) is reached or not.

    METHOD AND APPARATUS FOR MEASURING A LASER RAY
    8.
    发明申请
    METHOD AND APPARATUS FOR MEASURING A LASER RAY 审中-公开
    用于测量激光雷达的方法和装置

    公开(公告)号：WO1981003068A1

    公开(公告)日：1981-10-29

    申请号：PCT/JP1981000089

    申请日：1981-04-15

    Applicant: HITACHI LTD ,  SHIRAKURA T ,  SASAKI K ,  SUGAWARA H ,  TAKEMORI S ,  KUWABARA K

    Inventor： HITACHI LTD

    IPC: G01J01/04

    CPC classification number: G01J5/20 ,  G01J1/42 ,  G01J1/4257

    Abstract: The power and the position of a laser ray (2) are measured by measuring the variation of the resistance of a thin wire (13) laid across the laser ray (2) with a resistance metal (21), as the thin wire (13) is moved through a drive mechanism (23). This may be utilized to monitor power and position of high power-laser devices available for manufacturing. It is possible to monitor the laser device continuously during manufacturing without cutting-off the laser ray and without increasing the power-loss of the laser ray.

    Spectrally filtered lens producing plural f-numbers with different spectral characteristics
    9.
    发明公开
    Spectrally filtered lens producing plural f-numbers with different spectral characteristics 失效
    产生具有不同光谱特性的多重F数的光谱滤光镜

    公开(公告)号：EP0188711A3

    公开(公告)日：1988-07-27

    申请号：EP85115305

    申请日：1985-12-03

    Applicant: POLAROID CORPORATION

    Inventor： Plummer, William T.

    IPC: G01J01/04

    CPC classification number: G01J1/04 ,  G01J1/0411 ,  G01J1/0437 ,  G01J1/0492

    Abstract: A photoresponsive apparatus is disclosed which in- dudes a photoresponsive device that provides an output or response having a characteristic which varies as a function of the radiant power and wavelength incident on a photoresponsive surface thereof. Included is a spectral filtering means associated with an optical assembly so as to provide the assembly with different f-number zones for each of the respectively different proportionalities of wavelengths such that the spectral composition of incident radiation reaching the surface is controlled by the spectral filtering means to effect a desired change in the response of the photoresponsive device.

    Flame detectors
    10.
    发明公开
    Flame detectors 失效
    火焰探测器

    公开(公告)号：EP0157644A3

    公开(公告)日：1988-03-30

    申请号：EP85302349

    申请日：1985-04-03

    Applicant: THE BABCOCK & WILCOX COMPANY

    Inventor： Ciammaichella, Richard Curtis ,  Youmans, Barry J.

    IPC: G01J01/04 ,  F23N05/08 ,  G01J01/42

    CPC classification number: G01J1/429 ,  F23N5/082

    Abstract: A flame detector (10) comprises a light collecting lens (16) or other device for collecting electromagnetic radiation from a flame (12) produced by aflame source (14), afilter (20) for passing only a portion of the electromagnetic radiation from the lens (16) which changes from between a flame on and a flame off condition, a solid state photocell (22) for receiving the portion of electromagnetic radiation passed by the filter (20), and a circuit (26) for producing a signal indicative of whether the flame (12) is on or off in response to a signal generated by the photocell (22). The photocell (22) is preferably sensitive to ultraviolet radiation to avoid confusion with infrared radiation that is produced by heat near the flame source and which heat is not necessarily indicative of whether the flame is on or off. The photocell (22) is preferably made of gallium arsenide phosphide semiconductive material.

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