公开(公告)号：US5164586A

公开(公告)日：1992-11-17

申请号：US704177

申请日：1991-05-22

Applicant: Gerhard Hohberg ,  Axel Matthes ,  Harry Schlemmer

Inventor： Gerhard Hohberg ,  Axel Matthes ,  Harry Schlemmer

IPC: G01N21/59

CPC classification number: G01N21/59 ,  G01N21/87 ,  G01N2201/06126 ,  G01N2201/065

Abstract: The invention is directed to an arrangement for measuring the absorption of a transparent specimen. The arrangement includes: a radiation source for supplying radiation; a radiation-integrating device defining a space enclosed by a wall having a reflective surface for multiply reflecting the radiation substantially uniformly throughout the space to diffusely illuminate the transparent specimen whereby diffused radiation passes through the transparent specimen; a photometric measuring unit for measuring the radiation passed through the specimen; and, a mount for mounting the specimen between the reflective surface and the measuring unit. The arrangement of the invention enables the absorption of transparent specimens to be measured which have unfavorable outer forms such as where the specimen contains no surfaces which are mutually parallel.

Abstract translation: 本发明涉及一种用于测量透明样品的吸收的装置。 该装置包括：用于提供辐射的辐射源; 辐射整合装置限定由具有反射表面的壁包围的空间，用于在整个空间中基本上均匀地反射辐射，以漫透照射透明样品，从而扩散的辐射通过透明样品; 用于测量穿过所述样本的辐射的光度测量单元; 以及用于将试样安装在反射表面和测量单元之间的安装件。 本发明的布置使得能够吸收具有不利外部形状的待测量的透明样品，例如其中样品不含相互平行的表面。

公开(公告)号：US5132791A

公开(公告)日：1992-07-21

申请号：US587870

申请日：1990-09-25

Applicant: Ronald D. Wertz ,  H. Kent Minet ,  Daniel J. Messerschmidt ,  Carey Brown

Inventor： Ronald D. Wertz ,  H. Kent Minet ,  Daniel J. Messerschmidt ,  Carey Brown

IPC: B65H43/08 ,  B65H43/04 ,  G01B11/30 ,  G01N21/84 ,  G01N21/88 ,  G01N21/89 ,  G01N21/892

CPC classification number: G01N21/8903 ,  B65H43/04 ,  B65H2553/42 ,  B65H2553/45 ,  G01N2021/845 ,  G01N2021/8887 ,  G01N2021/891 ,  G01N2201/06126

Abstract: An optical inspection system inspects individual sheets having scrolled and unscrolled edges for defects in a production line with high transfer velocities. Each of the individual sheets are delivered in a production line with some spacing between them and potentially with some degree of skewness and offset from the production center line. The inspection system of the present invention utilizes a formed viewing window over which individual sheets from the production line are delivered. As each sheet is delivered over the formed viewing window, the undersurface of each individual sheet is uniformly and continuously illuminated along the length of the formed viewing window with high intensity diffused light. The reflected light from the surface of each moving individual sheet is captured by at least one video camera. As the sheet moves across the formed viewing window, a line-by-line video image is captured and stored according to a rectangularization technique which eliminates the need for customized masks. An analyzer receives the stored information and analyzes the stored information for the presence of defects.

公开(公告)号：US4832495A

公开(公告)日：1989-05-23

申请号：US107962

申请日：1987-10-13

Applicant: Daniel D. Briggs ,  Peter Vischer

Inventor： Daniel D. Briggs ,  Peter Vischer

IPC: G01N21/59

CPC classification number: G01N21/5907 ,  G01N2021/5942 ,  G01N2021/5957 ,  G01N2201/06126 ,  G01N2201/06133 ,  G01N2201/0636 ,  G01N2201/0646

Abstract: An apparatus for measuring the relative coverage of a predetermined portion of a sheet of translucent material with an opaque medium such as ink or photographic emulsion, comprising: a light source for providing a relatively constant intensity source of light over a predetermined measuring area; a positioning device for positioning the predetermined portion of the sheet of material to be measured over the predetermined measuring area of the light source; a light measuring device for measuring the relative amount of light from the light source which is transmitted through the predetermined portion of the sheet of material to be measured, whereby the relative amount of opaque medium coverage of the portion of the sheet to be measured is readily determinable by comparison of the measured amount of light transmitted through the predetermined portion of the sheet to be measured with predetermined calibration values.

Abstract translation: 一种用于用不透明介质如油墨或照相乳剂测量半透明材料片的预定部分的相对覆盖度的装置，包括：用于在预定测量区域上提供相对恒定的强度光源的光源; 定位装置，用于将待测量的材料片的预定部分定位在光源的预定测量区域上; 光测量装置，用于测量透射通过待测量材料片的预定部分的来自光源的光的相对量，由此待测量的片的部分的不透明介质覆盖的相对量容易 可以通过将测量的被测量的光的透射量与预定的校准值进行比较来确定。