公开(公告)号：DE2541634A1

公开(公告)日：1976-07-08

申请号：DE2541634

申请日：1975-09-18

Applicant: IBM

Inventor： HOCHBERG FREDERICK ,  PENNINGTON KEITH S

IPC: B41J2/015 ,  B41J2/21 ,  B41J2/215 ,  G03G19/00 ,  H04N1/23 ,  B05D5/12 ,  B05C19/00 ,  H01F10/00 ,  B41M3/00 ,  H04L21/04 ,  H04N1/26

Abstract: 1489679 Printing INTERNATIONAL BUSINESS MACHINES CORP 15 Oct 1975 [31 Dec 1974] 42146/75 Heading B6C A method of marking a substrate comprises contacting the substrate with a micromist containing magnetically attractable material i.e. a mist whose particle size is such as not to wet the substrate in the absence of an applied magnetic field, and applying a magnetic field pattern to deposit material The micromist may be produced by ultrasonic vibration. The magnetic field may be generated in known fashion by selective heads adjacent the substrate printed on the side opposite the micromist, or by using selectively energizable heads to produce the pattern on a roller or endless band adjacent this side. Alternatively, a magnetized endless band may be exposed to the micromist, and the pattern formed thereon transferred to the final substrate.

公开(公告)号：CA939545A

公开(公告)日：1974-01-08

申请号：CA98776

申请日：1970-11-23

Applicant: IBM

Inventor： PENNINGTON KEITH S ,  SHELTON GLENMORE L JR ,  WILL PETER M

IPC: G02B27/44

Abstract: 1308486 Optical processing of images INTERNATIONAL BUSINESS MACHINES CORP 7 Dec 1970 [23 Dec 1969] 57955/70 Heading G2J An image processing system includes means for projecting zone plate encoded images, means positioned at the focal lengths of the zone plate encoded images for spatially filtering the projected images and means for displaying the filtered images. The coded image is formed by projecting a zone plate image on to an object and recording an image of the thus coded object. The recorded image 31 is then illuminated and forms images in the focal plane of the zone plate 16", 17" . A filter 35 is located in this plane and has a slit 36 which is caused to scan across the plane. Filtered images 18"', 19"' formed on a screen 40 are displayed by a varifocal reflector 50. The varifocal reflector 50 is synchronously operated with the slit 36. Three-dimensional features of the object, initially recorded in coded-form on a two-dimensional film, are thus displayed. In an alternative embodiment an electro-optic plate 72 is located in the coded image plane. The elemental strips of plate 72 are also synchronously operated with a varifocal reflector. A stop 33 is located at the focal plane of imaging lens 32. In a further embodiment, Fig.6, film 31 is illuminated and an image formed by lens 32 on a filter 35 having a scanning slit 36. A lens 39 sets up a filtered image on screen 40. A television camera 100 picks-up the image portions as they are formed on screen 40, displays them as a cathode ray tube 102 and the final three-dimensional display formed on variofocal reflector 50 operated synchronously with slit 36.