公开(公告)号：US06646244B2

公开(公告)日：2003-11-11

申请号：US10027747

申请日：2001-12-19

Applicant: Eric Aas ,  Gordon R. Nuttall

Inventor： Eric Aas ,  Gordon R. Nuttall

IPC: G01J132

CPC classification number: H04N1/02815 ,  H04N1/031 ,  H04N1/107 ,  H04N2201/0458 ,  H04N2201/0471 ,  H04N2201/04731 ,  H04N2201/04743

Abstract: The invention discloses a system and method for an optical imaging device comprising an image sensor for reading image data from an original slid over the image sensor, a variable power interface for varying an intensity of an illumination source corresponding to the image sensor, wherein the intensity is varied responsive to velocities of the original slid over the image sensor, and a processor for processing the image data.

公开(公告)号：US06614013B2

公开(公告)日：2003-09-02

申请号：US10045947

申请日：2001-10-26

Applicant: Radu Pitigoi-Aron ,  Ulrich Forke ,  Roar Viala

Inventor： Radu Pitigoi-Aron ,  Ulrich Forke ,  Roar Viala

IPC: G01J132

CPC classification number: H05B33/0857 ,  H05B39/042 ,  H05B41/3922

Abstract: The present invention provides an illumination management system that includes a first LED that outputs a first signal when exposed to a first spectrum of light, the first signal indicating an intensity of light from the first spectrum; a second LED that outputs a second signal when exposed to a second spectrum of light, the second signal indicating an intensity of light from the second spectrum and wherein the second spectrum includes at least some wavelengths that are not in said first spectrum. In some embodiments, more LEDs could be included in the system for associating the presence of light energy from different parts of the light spectrum. Also included is light control circuitry, coupled to the LEDs, configured to generate a lighting control signal that can be output to one or more lights to adjust the lights to a desired light level, wherein the lighting control signal varies in response to said first and second signals.

Abstract translation: 本发明提供了一种照明管理系统，其包括当暴露于第一光谱时输出第一信号的第一LED，第一信号指示来自第一光谱的光的强度; 第二LED，其在暴露于第二光谱时输出第二信号，所述第二信号指示来自所述第二光谱的光的强度，并且其中所述第二光谱包括不在所述第一光谱中的至少一些波长。 在一些实施例中，系统中可以包括更多的LED，用于关联来自光谱的不同部分的光能的存在。 还包括耦合到LED的光控制电路，其被配置为产生可以输出到一个或多个光以将光调节到期望的光水平的照明控制信号，其中照明控制信号响应于所述第一和第 第二信号。

公开(公告)号：US06603104B1

公开(公告)日：2003-08-05

申请号：US09679631

申请日：2000-10-05

Applicant: Ho-seong Lee

Inventor： Ho-seong Lee

IPC: G01J132

CPC classification number: G09G5/006 ,  G09G3/3651 ,  G09G2320/0626 ,  G09G2320/066 ,  G09G2320/0673

Abstract: An apparatus for maintaining the average light level of a screen for a ferroelectric liquid crystal display (LCD) is provided. The apparatus for maintaining the average light level of a screen for a ferroelectric liquid crystal display (LCD), includes an average light level detector for detecting the average light level of an input signal, using a predetermined pixel value of the input signal, a system controller for providing a predetermined reference average light level, and a screen light adjuster for receiving a reference average light level provided by the average light level of the input signal output from the average light level detector and the reference average light level provided by the system controller, adjusting the light of a screen so that the difference between the average light level of the input signal and the reference average light level is reduced, and keeping the average light level of the screen uniform. According to the above apparatus, it is possible to keep the light of a screen uniform.

Abstract translation: 提供了一种用于维持用于铁电液晶显示器（LCD）的屏幕的平均光级的装置。 用于维持用于铁电液晶显示器（LCD）的屏幕的平均光级的装置包括：平均光级检测器，用于使用输入信号的预定像素值检测输入信号的平均光电平;系统 控制器，用于提供预定的参考平均光级，以及屏幕光调节器，用于接收由平均光级检测器输出的输入信号的平均光级和由系统控制器提供的参考平均亮度提供的参考平均亮度 调整画面的光，使得输入信号的平均光电平与参考平均亮度之间的差减小，并保持屏幕的平均光线均匀。 根据上述装置，可以使屏幕的光线保持均匀。

公开(公告)号：US06534756B1

公开(公告)日：2003-03-18

申请号：US09602619

申请日：2000-06-22

Applicant: Michael N. Grimbergen

Inventor： Michael N. Grimbergen

IPC: G01J132

CPC classification number: G02B6/4298

Abstract: Mounting source components in a single piece machined housing block enhances stability of operation of a vapor lamp light source. Additionally, the light path providing sample light to a reference detector is matched to have the same numerical aperture as the optical fiber bundle used to output the light from the source. By matching the feedback optical path and the output optical path, more accurate, sensitive feedback control is made possible. Brightness of output of the light source is maximized by placing the vapor lamp as close as possible to the output fiber bundle. An output node provides a signal indicative of operational status of the light source, for use by a process controller.

Abstract translation: 在单件加工的外壳块中安装源组件增强了蒸汽灯光源的操作稳定性。 另外，向参考检测器提供采样光的光路被匹配以具有与用于输出来自光源的光的光纤束相同的数值孔径。 通过匹配反馈光路和输出光路，可以实现更精确，灵敏的反馈控制。 通过将蒸气灯尽可能靠近输出光纤束，使光源的输出的亮度最大化。 输出节点提供指示光源的操作状态的信号，供过程控制器使用。

公开(公告)号：US06310337B1

公开(公告)日：2001-10-30

申请号：US09366247

申请日：1999-08-03

Applicant: Joseph M. Chiapperi ,  Donald M. Josephson ,  Stuart G. MacDonald

Inventor： Joseph M. Chiapperi ,  Donald M. Josephson ,  Stuart G. MacDonald

IPC: G01J132

CPC classification number: G01J3/10 ,  G01N21/274 ,  G01N2021/3174 ,  G01N2201/0694 ,  G01N2201/1241 ,  G01N2201/12776

Abstract: A method of detecting an optical change in a series of test assays producing detectable results at varying efficiencies, the method comprising the steps of: a) selecting a test assay from the series, the selected assay having a known end-point photoresponse efficiency and a known filter center wavelength; b) providing a variable-intensity flash lamp illuminator comprising a lamp, a set of multiple filters with pre-selected center wavelengths assigned to particular assays, and a circuit for activating the lamp and comprising a capacitor, a power source, and a variable output voltage converter connected to the source and having its variable voltage output connected across the capacitor, the lamp and the filters providing a known level of system efficiency as a function of the center wavelength of the filter; c) providing a predetermined relationship of levels of illuminating intensities from the lamp as a function of photoresponse efficiencies of the assays and the system efficiencies, in which the photoresponse efficiencies of the assays are inversely proportional to the lamp intensities and the intensities are proportional to the square of the voltages applied to the lamp; d) selecting from the relationship a voltage applied to the lamp, and hence an intensity of the lamp, that corresponds to the known photoresponse efficiency of the assay selected in step (a) and its system efficiency based upon the filter center wavelength for the assay; and e) thereafter exposing the assay to the selected illuminating intensity.

Abstract translation: 一种检测一系列测试测定中的光学变化的方法，其以不同的效率产生可检测的结果，所述方法包括以下步骤：a）从该系列中选择测试测定，所选择的测定具有已知的终点光响应效率和 已知滤波器中心波长; b）提供可变强度的闪光灯照明器，其包括灯，一组具有分配给特定测定的预选中心波长的多个滤光器，以及用于激活灯的电路，并且包括电容器，电源和可变输出 电压转换器连接到源极并且具有连接在电容器两端的可变电压输出，灯和滤波器提供作为滤波器的中心波长的函数的已知的系统效率水平; c）提供来自灯的照明强度水平的预定关系作为测定的光响应效率和系统效率的函数，其中测定的光响应效率与灯的强度成反比，并且强度与 施加到灯的电压的平方; d）从所述关系中选择对应于步骤（a）中选择的测定的已知光响应效率的灯施加的电压，并因此选择灯的强度，并且基于用于测定的滤波器中心波长的系统效率 ; 和e）然后将测定暴露于所选择的照射强度。

公开(公告)号：US06204493B1

公开(公告)日：2001-03-20

申请号：US09138224

申请日：1998-08-21

Applicant: Robert Fischl ,  Chikaodinaka Nwankpa ,  Ayre Rosen

Inventor： Robert Fischl ,  Chikaodinaka Nwankpa ,  Ayre Rosen

IPC: G01J132

CPC classification number: H02M1/092 ,  H03K17/18 ,  H03K17/79

Abstract: The present invention is a fault tolerant apparatus for regulating the flow of electricity. The apparatus comprises a light radiating circuit which includes a first light source for radiating a first light signal, a second light source for radiating a second light signal and a first light sensor for receiving at least one of the first and second light signals and for generating a first light sensor output signal in response to the first and second light signals. The radiating circuit further includes a control circuit for actuating the first light source to radiate the first light signal when the control circuit receives a control input signal and for actuating the second light source to radiate the second light signal when the control circuit fails to receive the first light sensor output signal from the first light sensor within a predetermined time after the control circuit has received the control input signal. The fault tolerant apparatus further comprises a light controlled device having a light sensitive input for receiving one of the first and second light signals and for regulating the flow of electricity light through the controlled device in response to one of the first and second light signals.

Abstract translation: 本发明是用于调节电流的容错装置。 该装置包括一个光辐射电路，其包括用于辐射第一光信号的第一光源，用于辐射第二光信号的第二光源和用于接收第一和第二光信号中的至少一个的第一光传感器， 响应于第一和第二光信号的第一光传感器输出信号。 辐射电路还包括控制电路，用于在控制电路接收到控制输入信号时致动第一光源以辐射第一光信号，并且当控制电路不能接收到第二光信号时，致动第二光源辐射第二光信号 在控制电路接收到控制输入信号之后的预定时间内，来自第一光传感器的第一光传感器输出信号。 容错装置还包括光控装置，其具有用于接收第一和第二光信号中的一个的光敏输入端，并响应于第一和第二光信号中的一个调节通过受控装置的电流的光。

公开(公告)号：US06828538B2

公开(公告)日：2004-12-07

申请号：US10025484

申请日：2001-12-26

Applicant: Patrick Y. Maeda

Inventor： Patrick Y. Maeda

IPC: G01J132

CPC classification number: B41J2/45 ,  G06K15/1247

Abstract: A system to monitor light emitting diodes (LEDs) in a printbar is described. The system integrates photodetectors into a printer or into the printbar itself such that as the printbar ages, the photodetectors can detect the decrease in intensity of the LEDs in the printbar and recalibrate driver circuits providing power to each LED. The recalibrated power output of each driver circuit compensates for nonuniformities in the LEDS that result from uneven aging of the LEDs.

Abstract translation: 描述了用于监视打印条中的发光二极管（LED）的系统。 该系统将光电检测器集成到打印机或打印机本身中，使得随着打印条的老化，光电检测器可以检测打印条中LED的强度的降低，并重新校准驱动器电路，为每个LED提供电源。 每个驱动器电路的重新校准的功率输出补偿由LED不均匀老化引起的LEDS的不均匀性。

公开(公告)号：US06822210B2

公开(公告)日：2004-11-23

申请号：US10252571

申请日：2002-09-24

Applicant: Yoshio Sasaki ,  Hiroyuki Tanaka ,  Hiroyuki Uchino ,  Tadashi Ueda

Inventor： Yoshio Sasaki ,  Hiroyuki Tanaka ,  Hiroyuki Uchino ,  Tadashi Ueda

IPC: G01J132

CPC classification number: G11B7/0062 ,  G11B7/00456 ,  G11B7/1263

Abstract: A data recording apparatus includes a laser diode applying light to a recording medium to record data, a front monitor diode detecting the intensity of light emitted from the laser diode, a switch device for switching to the lowpass filter in the operating state during the time period over which a signal of 14T mark is recorded, a lowpass filter for receiving a signal which is outputted from a front monitor diode, and a sampling/holding unit sampling the output signal which is outputted from the lowpass filter. The intensity of light emitted from the laser diode on the output signal sampled by the sampling/holding unit.

Abstract translation: 一种数据记录装置，包括：向记录介质施加光以记录数据的激光二极管，检测从激光二极管发射的光的强度的前监视二极管，在该时间段内在操作状态切换到低通滤波器的开关装置 记录有14T标记的信号，用于接收从前监视二极管输出的信号的低通滤波器，以及对从低通滤波器输出的输出信号进行采样的采样/保持单元。 由激光二极管发出的光的强度由采样/保持单元采样的输出信号。

公开(公告)号：US06815652B1

公开(公告)日：2004-11-09

申请号：US09659100

申请日：2000-09-11

Applicant: Thomas Joe Hamilton

Inventor： Thomas Joe Hamilton

IPC: G01J132

CPC classification number: A61F9/06 ,  G01J1/46 ,  G01J2001/0276

Abstract: A sensor circuit for detecting the occurrence of welding is disclosed. The sensor circuit uses a phototransistor operative to receive a light input and produce an output representative thereof. A resistor is coupled between the phototransistor's base and emitter to control the phototransistor's response to low intensity and high intensity light. An amplifier may be coupled to the output of the phototransistor so as to provide a gain for the output of the phototransistor; and feedback means may coupled to the phototransistor to bias the phototransistor, the feedback means comprising a resistor capacitor circuit for following the output of the phototransistor, a feedback transistor to provide a feedback signal to the phototransistor, and a resistor coupled between the base and the emitter of the phototransistor. Preferably the phototransistor is a planar phototransistor having a surface mount. The sensor circuit may also be used in an auto-darkening eye protection device, such as a welding helmet or the like, that delivers a drive signal to a shutter assembly upon the detection of welding, the drive signal being operative to drive the shutter assembly to a darkened, protective state. A solar cell may be used to reduce the circuit's power consumption by powering various circuit components only when the welding helmet is exposed to light. The present invention provides reduced power consumption, improved attenuation of low intensity light signals, a sharp rise time from the phototransistor in response to high intensity light, and allows implementation into a smaller sleeker eye protection device.

Abstract translation: 公开了一种用于检测焊接发生的传感器电路。 传感器电路使用可操作的光电晶体管来接收光输入并产生其代表的输出。 电阻耦合在光电晶体管的基极和发射极之间，以控制光电晶体管对低强度和高强度光的响应。 放大器可以耦合到光电晶体管的输出，以便为光电晶体管的输出提供增益; 并且反馈装置可以耦合到光电晶体管以偏置光电晶体管，反馈装置包括用于跟随光电晶体管的输出的电阻电容器电路，用于向光电晶体管提供反馈信号的反馈晶体管，以及耦合在基极和 光电晶体管的发射极。 优选地，光电晶体管是具有表面安装的平面光电晶体管。 传感器电路还可以用于自动变暗眼保护装置，例如焊接头盔等，其在检测到焊接时将驱动信号传递到快门组件，驱动信号可操作以驱动快门组件 变暗，保护状态。 只有当焊接头盔暴露于光时，可以通过为各种电路部件供电来减少电路的功率消耗。 本发明提供了降低的功率消耗，改善的低强度光信号的衰减，响应于高强度光从光电晶体管的急剧上升时间，并且允许实现到较小的时尚眼睛保护装置中。

公开(公告)号：US06774348B2

公开(公告)日：2004-08-10

申请号：US10163440

申请日：2002-06-04

Applicant: James K. Guenter ,  Jimmy A. Tatum

Inventor： James K. Guenter ,  Jimmy A. Tatum

IPC: G01J132

CPC classification number: G01J1/4257 ,  G01J1/02 ,  G01J1/0204 ,  G01J1/04 ,  G01J1/0407 ,  G01J1/32 ,  G01J1/4228 ,  G01J9/00 ,  H04B10/077 ,  H04B10/07955

Abstract: Methods and apparatus for monitoring the power level of a multi-wavelength optical signal are provided. Also provided are methods and apparatus for adjusting the power level of selected optical emitters to compensate for the changes in power levels.

Abstract translation: 提供了用于监测多波长光信号的功率电平的方法和装置。 还提供了用于调整所选择的光发射器的功率电平以补偿功率电平变化的方法和装置。