公开(公告)号：US4929829A

公开(公告)日：1990-05-29

申请号：US389443

申请日：1989-08-04

Applicant: Hubert Dedden ,  Eckhard Gieger ,  Christian Lauer

Inventor： Hubert Dedden ,  Eckhard Gieger ,  Christian Lauer

IPC: G01N21/47 ,  B01D29/075 ,  B01D29/25 ,  B01D29/37 ,  B01D29/60 ,  B01D35/22 ,  G01F23/28 ,  G01F23/292

CPC classification number: B01D29/60 ,  G01F23/292 ,  G01F23/2928 ,  B01D2029/075

Abstract: In the method for detecting the point of immersion or emergence of a solid or porous body into or out of a liquid, surface waves are generated in the liquid and the light coming from a light source and reflected on the surface of the liquid is scanned photoelectrically. Only the alternating light component of the reflected light is detected here and the rectified alternating light signal is compared with a preset threshold value. When the actual value falls below or exceeds the threshold value, a control signal is then generated which can be utilized for control or regulating actions. For detecting the alternating light component, the photoelectric scanning signal is differentiated. Advantageously, scanning of the surface of the liquid is carried out at a plurality of points. The resulting rectified alternating light components can subsequently be added up, and the total value can be compared with the preset threshold value.

Abstract translation: 在用于检测固体或多孔体浸入或流出液体的点的方法中，在液体中产生表面波，并且来自光源并在液体表面上反射的光被光电扫描 。 在此仅检测反射光的交替光分量，并将整流交替光信号与预设阈值进行比较。 当实际值低于或超过阈值时，产生可用于控制或调节动作的控制信号。 为了检测交变光分量，光电扫描信号被区分。 有利地，在多个点处进行液体表面的扫描。 随后将所得到的整流交替光分量相加，并将总值与预设的阈值进行比较。

公开(公告)号：US4379632A

公开(公告)日：1983-04-12

申请号：US320473

申请日：1981-11-12

Applicant: Hubert Dedden ,  Jurgen Pfingst

Inventor： Hubert Dedden ,  Jurgen Pfingst

IPC: G03B27/32 ,  G03B27/46 ,  G03B27/80 ,  G06T1/00

CPC classification number: G03B27/80

Abstract: Successive frames of spliced-together exposed and developed photographic films are examined prior to introduction into a copying machine to prevent the reproduction of film frames having blurred images. Portions of or entire film frames at an examining station are spot scanned, line-by-line, and the resulting video signals are processed to determine one or more quotients which denote the ratio of maximum density gradient to density range of the respective film frames, the ratio of first and second density gradients obtained on scanning the entire frequency spectrum or the lower density portion of a film frame, and the ratio of frequency of occurrence of the first and second density gradients. Such quotient or quotients are compared with a threshold value and the results of comparison are used to classify the film frames as suitable or unfit for the making of reproductions.

Abstract translation: 拼接在一起的曝光和显影照相胶片的连续帧在引入复印机之前被检查，以防止具有模糊图像的胶片框的再现。 在检查站的部分或整个胶片帧被逐点扫描，并且所得到的视频信号被处理以确定表示各个胶卷帧的最大浓度梯度与浓度范围的比率的一个或多个商， 在扫描薄膜框架的整个频谱或低密度部分时获得的第一和第二浓度梯度的比率以及第一和第二浓度梯度的出现频率的比率。 将这样的商或商与阈值进行比较，并且比较结果用于将胶片框分类为适合或不适于制作复制品。

公开(公告)号：US4665036A

公开(公告)日：1987-05-12

申请号：US734921

申请日：1985-05-16

Applicant: Hubert Dedden ,  Dietrich Forster ,  Horst Rost ,  Alfred Zembrod

Inventor： Hubert Dedden ,  Dietrich Forster ,  Horst Rost ,  Alfred Zembrod

IPC: C12M1/34 ,  G01N21/47 ,  G02B27/00 ,  C12M1/20

CPC classification number: G01N21/47 ,  C12M41/36 ,  G01N2201/06126 ,  Y10S435/808

Abstract: An illuminating device with a diffused, radiating, surface light source (3) and an aperture system positioned between the light source and the object is provided. The aperture system is formed by two optically complementary aperture screens (4, 5) which are disposed in series, and are spaced apart. The first aperture screen (4) thereby consists of a large number of transparent circular discs (8), positioned at intervals on an opaque base, and a second aperture screen (5) consists of a large number of opaque circular discs (9), positioned at intervals on a transparent base. The diameter of the opaque circular discs (9) is larger than that of the transparent circular discs (8), so that the circular discs of the two aperture screens (4, 5) overlap in the projection. The microbiological structures used generally have a large number of almost circular areas which are positioned in a regular surface pattern on a transparent base or round one or some relatively large circular transparent areas on a light-dispersing base. With the illuminating device according to the principle of the complementary aperture screens, the contrast of such microbiological structures in relation to the base could be substantially improved.

Abstract translation: 提供具有漫射，辐射面光源（3）和位于光源和物体之间的光圈系统的照明装置。 孔径系统由两个光学互补的孔眼筛网（4,5）形成，它们被串联布置并且间隔开。 因此，第一孔径筛（4）由大量透明圆盘（8）组成，其间隔地设置在不透明基底上，第二孔径筛（5）由大量不透明圆盘（9）组成， 定位在透明基座上。 不透明圆盘（9）的直径大于透明圆盘（8）的直径，使得两个孔径筛（4,5）的圆盘在突起中重叠。 所使用的微生物结构通常具有大量几乎圆形的区域，它们以透明基底或圆形的一个或一些相对大的圆形透明区域位于光分散基底上。 利用根据互补孔径筛网原理的照明装置，这种微生物结构相对于基底的对比可以显着改善。

公开(公告)号：US3469480A

公开(公告)日：1969-09-30

申请号：US3469480D

申请日：1967-02-27

Applicant: HEINRICH NASSENSTEIN ,  HUBERT DEDDEN ,  RUDOLF PAULUS

Inventor： NASSENSTEIN HEINRICH ,  DEDDEN HUBERT ,  PAULUS RUDOLF

IPC: G03B21/32 ,  G03B35/24 ,  B26D5/34

CPC classification number: G03B21/32 ,  G03B35/24 ,  Y10T83/0577 ,  Y10T83/533 ,  Y10T83/543