Abstract:
PURPOSE:To perform the inspection of a colored printed material highly accurately at a high speed without making a structure large, by synchronously controlling light emitting bodies in a plurality of light emitting frequency bands in a color picture input head and a light receiving part, which receives the reflected light of the light projected from said light emitting bodies. CONSTITUTION:A color picture input head 100 is constituted by LED arrays 311 and 312 for colors R, G, and B in different light emitting frequency bands, which scan the width direction of printed paper 2 and emit light; a lens array 330, which guides the reflected light from the printed paper 2, which receives the emitted light, to a light receiving part 340; the light receiving parts 340; and the like. Selection of the LED of said arrays 311 and 312 and the light receiving element of the light receiving part 340 is synchronized through a controller, which responds to picture pattern starting pulses from a rotary encoder of a printing machine. The compact color picture input head 100 is incorporated in a printing device without making the structure of the printing device large. Therefore, the colored printed material can be inspected highly accurately at a high speed.
Abstract:
PURPOSE:To reduce the number of photoelectric converters as compared with the number of colors of inks, by a method wherein a color material carrier is irradiated with two light sources and the lights thereof are respectively received by the photoelectric converter having spectroscopic sensitivity characteristics almost the same to the sight sensitivity of a human being to perform color discrimination. CONSTITUTION:A first red light source and a second green light source 23 are parallelly placed on the ink coated surface of an ink carrier 21 so as to provide the distance (l) therebetween. A first and a second photodiodes 24, 25 are respectively placed in opposed relation to the first and the second light sources 22, 23 so as to leave the distance (l) therebetween in the direction vertical to the ink coated surface of the ink carrier 21. When lights are received by the first and the second photodiodes 24, 25, minute currents are flowed and, therefore, treated by a first and a second treating parts 26a, 26b. By the combination of the outputs from these treating parts, an ink color is judged by a judging part 26c and LED having a color the same to the ink color is emitted.
Abstract:
PURPOSE:To obtain a device which surely discriminates colors by detecting the reflected light or transmitted light obtained by successively irradiating a specimen with plural light sources of different light colors with two pieces of photodetecting parts of different spectral sensitivity characteristics and comparing the same. CONSTITUTION:Two pieces of light sources 4a, 4b of different spectral distributions like curves F1, F2 are alternately lighted by a switch. The reflected light (or transmitted light) obtained by irradiating a specimen with the light thereof through a filter 6 is inputted to a color sensor 5 consisting of two kinds of photodetecting parts PD1, PD2 and a control unit 7. The unit 7 consists of an operational amplifier for determining the ratio of two kinds of the photodetection outputs, transistors, etc., and inputs the output E0 thereof a comparator 8. The outputs of the comparator 8 obtained by operating the plural specimens with the light source 4a then with the light source 4b are compared with a standard pattern. Thereby, the color differences of cables, resistances, capacitors, etc., displayed by colors are easily detected.
Abstract in simplified Chinese:用于产生一测试表面之形状及颜色纹理之3D图像之系统及方法是被描述。在一方面,表面形貌干涉仪系被装配有一多重组件侦测器及一照明系统以产生被测量物体表面之一真实色彩影像。颜色信息能够被呈现为一真实色彩二维影像或与形貌信息结合去形成该物体之形状及颜色纹理之一三维图像,有效地对于一人类观看者产生看着真实部分之印象。
Abstract in simplified Chinese:本发明提供一种以可稳定的精确度来检测标记的光电传感器。
在进行标记31的检测动作之前,先针对从投光组件11射出的各颜色的每一光,将薄片30中的标记31以外的部分是存在于检测区域时的受光量位准即基准受光量位准,加以采样,并且针对从投光组件11射出的各颜色之每一光,将薄片30中的标记31是存在于上述检测区域时的上述受光量位准即标记31受光量位准,加以采样,针对各颜色的每一光,求出基准受光量位准与标记受光量位准之差,求出该差与基准受光量位准的比,根据该各颜色的每一光之比,选择出可获得最大比值之颜色的光,在进行标记31的检测动作时,使该已选择的颜色之光,从投光组件11射出。
Abstract in simplified Chinese:本发明系关于一种具有数个发光器之照明设备(1),例如,具有个别发射光谱之LED(L1、L2、L3、L4)。传感器单元(D1、D2、D3、D4)可产生量测信号(S1、S2、S3、S4)之一矢量,以表示一单一有效发光器之光输出。基于在一校正进程中所得之一线性关系,接着可自该量测矢量计算该发光器(L1、L2、L3、L4)之光输出之一特征値,其中该特征値系基于将个别发射光谱分解为若干基底函数的若干系数。
Abstract in simplified Chinese:一种用于侦测试片的测试场色彩之光学量测设备,该试片系由用于侦测一液体中的物质之该液体所湿润,据此令测试场的反射率(reflectivity)依据受侦测物质浓度而改变,该设备包含:一量测平面,其中放置有该试片;一照明设备,其用于照明量测平面;一平面性影像传感器;一光学系统,其用于将该量测平面成像在影像传感器上;及一电子评估单元,其用于评估该影像传感器所侦测的信号,该照明设备系包含用于以不同颜色交替式照明该量测平面之不同颜色光源或其他设备,其中该电子评估单元系从不同颜色照明下获得的影像来侦测测试场的色彩。
Abstract in simplified Chinese:本发明提供一组合,其先借由改变发射器功率与发射器/检测器曝光量时间长短以进行粗调,再借由存储每个光检测器组件的校正值以进行微调。每个光检测器的调整,不仅校正其范围,亦含其补偿,而提供两校正值。在一较佳实施例中,模拟至数码转换器之低与高电压参考值准位针对各色彩之各光检测器而受调整与存储。
Abstract in simplified Chinese:一种色度及亮度均匀的光源及具该光源之色彩传感仪,主要包含光源、分光设备、及传感设备,而本案之光源更包括有复数个LED组件、一次导光板组件、及二次导光板组件,系利用一次导光板组件将复数个LED组件的各个光谱进行第一次色度及亮度的匀化,再将第一次均匀化的光导入二次导光板组件再次进行第二次的色度及亮度均匀化,以作为色彩传感仪的光源,因此,本案光源不仅色度及亮度均匀化效果佳,光源更可以符合标准照明体D65,令色彩传感仪检测结果更精准,尤其传感仪的检测尺寸可以增大而成本不致大幅提高。