公开(公告)号：US20030007804A1

公开(公告)日：2003-01-09

申请号：US09882196

申请日：2001-06-15

Applicant: NexPress Solutions LLC

Inventor： Matthias H. Regelsberger ,  Richard G. Allen ,  William A. Hameister ,  Bradley A. Twait

IPC: G03G015/00

CPC classification number: G01J1/32 ,  B41J29/393 ,  G01J1/26 ,  G01J3/50 ,  G01J3/501 ,  G03G15/01 ,  G03G2215/00042 ,  G03G2215/00063

Abstract: A method and apparatus for a single densitometer design that is used for all colors within multiple color image processing system. The preferred embodiment employs an LED having a light adjustment mechanism for controlling the amount of light received by a light detector in the densitometer. The coarse light adjustment is provided through a variable aperture. Fine light adjustment is accomplished through controlling the current through the LED, either by a potentiometer or through an automated process. Preferably, each of the LEDs is selected by wavelength to maximize the absorption by the colorant yielding light roughly complimentary to the colorant. The adjustment circuit provides advantage in color printing systems by allowing duplicate versions of the same densitometer circuit to yield similar voltage outputs for different colorants, thereby compensating for different absorption characteristics and light output of different colored LEDs.

Abstract translation: 用于单个密度计设计的方法和装置，其用于多个彩色图像处理系统内的所有颜色。 优选实施例采用具有光调节机构的LED来控制光密度计中的光检测器所接收的光量。 通过可变光圈提供粗调光。 通过控制通过LED的电流，通过电位器或通过自动化过程来实现精细调光。 优选地，通过波长选择每个LED，以最大化着色剂的吸收，产生与着色剂大致互补的光。 调整电路通过允许相同密度计电路的重复版本产生不同着色剂的类似电压输出，从而补偿不同颜色的LED的不同吸收特性和光输出，从而在彩色打印系统中提供了优势。

公开(公告)号：US20020179710A1

公开(公告)日：2002-12-05

申请号：US10170304

申请日：2002-06-12

Inventor： Yeming Gu ,  Donald A. Collins JR.

IPC: G06K007/10 ,  G06K007/14

CPC classification number: G01N21/276 ,  G01J3/0272 ,  G01J3/28 ,  G01J3/50 ,  G01J3/501 ,  G01J3/502 ,  G01J3/51 ,  G01J3/524 ,  G06K9/00 ,  G06K2209/17 ,  G07G1/0054

Abstract: A produce recognition system and method which use an internal reference to calibrate a produce data collector. The produce data collector collects first data from an external reference, collects second and third data from an internal reference, and collects fourth data from a produce item. A computer determines a first calibration value from the first and second data and a second calibration value from the third data and applies the first and second calibration values to the fourth data to produce fifth data. The computer further obtains sixth data from reference produce data and compares the fifth and sixth data to identify the produce item.

Abstract translation: 一种产品识别系统和方法，其使用内部参考来校准产品数据收集器。 产品数据收集器从外部参考文件收集第一数据，从内部参考中收集第二和第三数据，并从产品项收集第四数据。 计算机从第一和第二数据确定第一校准值，并从第三数据确定第二校准值，并将第一和第二校准值应用于第四数据以产生第五数据。 计算机还从参考产生数据中获得第六数据，并比较第五和第六数据以识别产品。

公开(公告)号：US06449045B1

公开(公告)日：2002-09-10

申请号：US09562072

申请日：2000-05-01

Applicant: Lingappa K. Mestha

Inventor： Lingappa K. Mestha

IPC: G01J346

CPC classification number: G01J3/46 ,  G01J3/462 ,  G01J3/501 ,  G01J3/524

Abstract: A limited number of voltage measurements are received from a multiple illuminant color sensor at the direction of a color sensor controller. The received sensor voltages are normalized in accordance with a calibration look-up table. Next, the normalized sensor voltages are converted to reflectance values based on a correction look-up table. Then, a reconstruction look-up table is used to convert the reflectance values at a predetermined wavelength to reflectance values with a predetermined wavelength separation.

Abstract translation: 在彩色传感器控制器的方向上从多个发光体颜色传感器接收有限数量的电压测量。 接收的传感器电压根据校准查找表进行归一化。 接下来，基于校正查找表将归一化的传感器电压转换为反射率值。 然后，使用重建查找表将预定波长的反射率值转换为具有预定波长间隔的反射率值。

公开(公告)号：US06369895B1

公开(公告)日：2002-04-09

申请号：US09505642

申请日：2000-02-16

Applicant: Richard A. Keeney

Inventor： Richard A. Keeney

IPC: G01J351

CPC classification number: G01J3/50 ,  G01J3/0272 ,  G01J3/501 ,  G01J3/513

Abstract: A color measurement instrument such as a reflection densitometer or a spectral reflectometer is fitted with an asymmetric tapered sample area optical enclosure to allow an improved operator sight line to the sample target area and allow ease of placement on the sample target, while allowing for the standard 45° illumination/90° measurement geometry. The disclosed structure is particularly suitable for use as a hand-held instrument.

Abstract translation: 诸如反射密度计或光谱反射计之类的颜色测量仪器配有不对称锥形样品区域光学外壳，以允许改进操作者对样品目标区域的视线，并允许容易地放置在样品靶上，同时允许标准 45°照度/ 90°测量几何。 所公开的结构特别适合用作手持式仪器。

公开(公告)号：US20020018208A1

公开(公告)日：2002-02-14

申请号：US09824577

申请日：2001-04-03

Inventor： Manfred Kemmler ,  Thomas Meinert ,  Dirk Truper

IPC: G01N021/25

CPC classification number: G01J1/04 ,  G01J1/0407 ,  G01J1/0414 ,  G01J1/0477 ,  G01J3/02 ,  G01J3/0205 ,  G01J3/0259 ,  G01J3/46 ,  G01J3/501 ,  G01V8/12

Abstract: The invention relates to a process and a device for detecting or recognizing an object by means of color recognition or brightness evaluation, whereby radiation emitted by a radiation source on the object and radiation reflected from the object is recorded by a photosensitive element such as a color-recognizing sensor. In order to be able to detect objects with a higher measuring exactitude, whereby changes in distance between object and light-sensitive element should not basically lead to a measurement falsification, it is suggested that reflected radiation be guided to the photosensitive element by means of a light-guiding element tapering in the direction of the photosensitive element.

Abstract translation: 本发明涉及一种用于通过颜色识别或亮度评估来检测或识别物体的方法和装置，由此辐射源在物体上发射的辐射和从物体反射的辐射由诸如颜色的光敏元件记录 识别传感器。 为了能够检测具有较高测量精度的物体，由此物体和感光元件之间的距离的变化基本上不会导致测量伪造，因此建议将反射的辐射通过 光导元件在感光元件的方向上渐缩。

公开(公告)号：US6157453A

公开(公告)日：2000-12-05

申请号：US288319

申请日：1999-04-08

Applicant: Maria Lisa Tamanti ,  Gianfranco Righi

Inventor： Maria Lisa Tamanti ,  Gianfranco Righi

IPC: G01J1/32 ,  G01J3/46 ,  G01J3/50 ,  G01N21/00

CPC classification number: G01J1/32 ,  G01J3/46 ,  G01J3/50 ,  G01J3/501

Abstract: The invention relates to a process for discriminating the color of a surface, comprising the steps of acquiring at least a colored acquisition surface, comparing the color of a detecting surface with said at least one color previously acquired so that said color can be recognized. In particular, the acquisition step comprises the steps of sequentially illuminating the acquisition surface with each of three light beams corresponding to three primary colors, each of said light beams being generated by a respective emission source supplied with a supply current IR, IG, IB; picking up by means of a light-receiving element the light scattered from the illuminated acquisition surface; generating an electric signal VR, VG, VB proportional to the luminous intensity of the picked-up light, as the acquisition surface is being illuminated with each of the three beams and controlling the supply current IR, IG, IB of the emission sources such that at least two of the electric signals VR, VG, VB generated are identical with each other within a predetermined tolerance margin.

Abstract translation: 本发明涉及用于区分表面颜色的方法，包括以下步骤：至少获取彩色采集表面，将检测表面的颜色与先前获取的所述至少一种颜色进行比较，使得可以识别所述颜色。 特别地，采集步骤包括以下三个步骤：用对应于三原色的三个光束中的每一个依次照射采集表面，每个所述光束由提供有电源电流IR，IG，IB的相应发射源产生; 通过光接收元件拾取从照明采集表面散射的光; 产生与所拾取的光的发光强度成比例的电信号VR，VG，VB，当三个光束中的每一个照射采集表面时，控制发射源的电源电流IR，IG，IB，使得 所生成的电信号VR，VG，VB中的至少两个在预定的容差范围内彼此相同。

公开(公告)号：US5963333A

公开(公告)日：1999-10-05

申请号：US923705

申请日：1997-09-04

Applicant: Eric Walowit ,  Ronald J. Duke ,  Victor L. Iseli ,  Long B. Sam ,  Michael J. Vrhel

Inventor： Eric Walowit ,  Ronald J. Duke ,  Victor L. Iseli ,  Long B. Sam ,  Michael J. Vrhel

IPC: G01J3/28 ,  G01J3/46 ,  G01J3/50 ,  G01J3/18 ,  H04J15/00

CPC classification number: G01J3/46 ,  G01J3/0251 ,  G01J3/463 ,  G01J3/465 ,  G01J3/50 ,  G01J3/501 ,  G01J3/524 ,  G01J2003/2866 ,  G01J3/0272

Abstract: A hand-manipulatable device includes a sensor for gathering reflective, densitometric, spectrophotometric, colorimetric, self-luminous or radiometric readings from a sample surface. The device includes a housing having a substantially flat bottom surface and a top surface contoured to fit comfortably in the fingers and palm of the human hand. The housing also includes area on its top surface for seating an index finger of the human hand. Positioned within this area is a pressure-activated switch that is operatively coupled to the sensor circuitry for performing the readings. Preferably, the sensor is mounted into the device such that the focal aperture of the sensor is in axial alignment with the pressure-activated switch. Accordingly, a user will be able to use the device to "point" with his or her index finger to an area of the sample surface, and will then simply press the switch to initiate the readings, using the same index finger.

Abstract translation: 可手动操作的装置包括用于从样品表面收集反射，光密度，分光光度，比色，自发光或辐射度读数的传感器。 该装置包括具有基本上平坦的底表面和外表面的外壳，外壳的轮廓可以舒适地配合在人的手指和手掌中。 外壳还包括其顶部表面上的用于放置人的食指的区域。 位于该区域内的压力启动开关可操作地耦合到用于执行读数的传感器电路。 优选地，传感器安装到装置中，使得传感器的焦点孔与压力启动的开关轴向对准。 因此，用户将能够使用该装置将他或她的食指“指向”到样品表面的一个区域，然后将使用相同的食指简单地按下开关来开始读数。

公开(公告)号：US5763873A

公开(公告)日：1998-06-09

申请号：US705381

申请日：1996-08-28

Applicant: James L. Beck ,  Malcolm L. Kinter

Inventor： James L. Beck ,  Malcolm L. Kinter

IPC: G01J1/44 ,  G01J3/50 ,  H01J40/14

CPC classification number: G01J1/4204 ,  G01J1/44 ,  G01J3/50 ,  G01J3/501

Abstract: An agricultural implement for spraying herbicide on weeds in a field without spraying herbicide on bare soil includes a photodetector circuit. The photodetector circuit includes a photodetector and an active filter. The photodetector is not AC coupled in parallel with an inductor/capacitor resonant circuit which tunes the active filter. As a result, changes in photodetector capacitance due to changes in ambient lighting conditions are not impressed across the resonant inductor/capacitor circuit and therefore do not adversely change the frequency and phase characteristics of the photodetector circuit.

Abstract translation: 一种用于在野外将除草剂喷洒在除草剂上的除草剂的农具，包括光电检测器电路。 光检测器电路包括光电检测器和有源滤波器。 光电检测器不与调谐有源滤波器的电感/电容谐振电路并联AC耦合。 结果，由于环境照明条件的变化引起的光检测器电容的变化不会在谐振电感/电容器电路上施加，因此不会不利地改变光电检测器电路的频率和相位特性。

公开(公告)号：US5690486A

公开(公告)日：1997-11-25

申请号：US508868

申请日：1995-07-28

Applicant: Sheldon D. Zigelbaum

Inventor： Sheldon D. Zigelbaum

IPC: A61C19/10 ,  G01J3/50 ,  A61C1/00

CPC classification number: G01J3/50 ,  A61C19/10 ,  G01J3/501 ,  G01J3/508 ,  G01J3/524 ,  G01J3/0218 ,  G01J3/0272

Abstract: The present invention relates to a dental device which detects the color of a damaged tooth and automatically determines the proper restorative dental material to be used to repair the damaged tooth. The device illuminates the tooth with light and detects the various color components of light reflected off the tooth. Signals indicative of the various color components are then processed and compared against known reference signal values indicative of the color of various restorative materials in order to determine which of the plurality of restorative dental materials best matches the color of the tooth. The device then displays a message indicative of the chosen material. The detector is preferably a lightweight, hand-held, battery powered device, which includes a wand assembly which is placed against the tooth. A disposable, replaceable, protective sheath is placed over the wand to ensure the health and safety of the patient. The sheath includes a light absorbing dark material which reduces, and preferably eliminates, the amount of ambient light which is reflected off the tooth and detected by the device when the wand is being used.

Abstract translation: 本发明涉及一种检测损伤牙齿的颜色并自动确定用于修复受损牙齿的适当的修复牙科材料的牙科装置。 设备用光照亮牙齿，并检测从牙齿反射的光的各种颜色分量。 然后对指示各种颜色成分的信号进行处理，并与指示各种修复材料的颜色的已知参考信号值进行比较，以便确定多种修复牙科材料中的哪一种最佳地匹配牙齿的颜色。 然后，设备显示指示所选材料的消息。 检测器优选地是轻量级的手持式电池供电装置，其包括抵靠牙齿放置的棒组件。 将一次性，可更换的护套放置在魔杖上方，以确保患者的健康和安全。 护套包括光吸收暗材料，其减少并优选地消除当使用魔杖时从牙齿反射并被装置检测到的环境光的量。

公开(公告)号：US5671059A

公开(公告)日：1997-09-23

申请号：US531435

申请日：1995-09-21

Applicant: Kent D. Vincent

Inventor： Kent D. Vincent

IPC: B41J2/525 ,  G01J3/46 ,  G01J3/51 ,  H05B33/04

CPC classification number: G01J3/51 ,  G01J3/501

Abstract: Multiple electroluminescent (EL) emitters are constructed from layers deposited on a substrate and incorporated with a broadband sensor to form a colorimeter. The EL emitters produce light covering spectral segments determined by a filter layer and an active layer wherein the spectral segments sufficiently cover the visible spectrum to enable a wide range of colors to be accurately measured. The colorimeter is mounted in a desktop color printer to measure the color content of printed images and to calibrate the printer.

Abstract translation: 多个电致发光（EL）发射体由沉积在衬底上并与宽带传感器结合以形成色度计的层构成。 EL发射器产生由滤光层和有源层确定的光覆盖光谱段，其中光谱段充分覆盖可见光谱，以使得能够精确测量宽范围的颜色。 色度计安装在桌面彩色打印机中以测量打印图像的颜色内容并校准打印机。