-
公开(公告)号：US3667831A
公开(公告)日：1972-06-06
申请号：US3667831D
申请日：1969-12-23
Applicant: KEITH S PENNINGTON , GLENMORE L SHELTON JR , PETER M WILL , IBM
Inventor： PENNINGTON KEITH S , SHELTON GLENMORE L JR , WILL PETER M
CPC classification number: G02B27/4222
Abstract: DEPTH OF RANGE INFORMATION IS EXTRACTED BY PROJECTING THE IMAGE OF A ZONE PLATE UPON A SCREEN AND PHOTOGRAPHING THE SCENE AT A DIFFERENT ANGLE FROM THE ZONE PLATE SOURCE. A TRANSPARENCY OF THE PHOTOGRAPH INCLUDING ZONE PLATE MODULATION OF THE SCENE FORMED ON PLANES IN THE SCENE IS THEN FILTERED BY A SCANNING SLIT AT THE ZONE PLATE FOCAL PLANE AND PRESENTED UPON AN OUTPUT SCREEN FROM END TO END, AS A FUNCTION OF ORIGINAL RANGE, FROM THE ZONE PLATE. THE REFLECTION OF THE IMAGE UPON THE SCREEN IN VIEWED IN A VARIFOCAL MIRROR DRIVEN IN SYNCHRONISM WITH SCANNING BY THE FILTER. THE SCREEN AND THE VARIFOCAL MIRROR MAY BE CONNECTED BY A LOW-BANDWIDTH, VIDEO CHANNEL AND A CHANNEL FOR CONTROL SIGNALS FOR THE MIRROR.
-
公开(公告)号：US3633995A
公开(公告)日：1972-01-11
申请号：US3633995D
申请日：1970-02-17
Applicant: IBM
Inventor： LEAN ERIC G , PENNINGTON KEITH S , POLE ROBERT V , POWELL CARL G
Abstract: A system for deflecting a light beam such as a laser beam including a crystal substrate, preferably piezoelectric, having a reflective coating on its surface which functions as a mirror. At least one surface acoustic wave transducer is mounted on the crystal and is actuated by a high-frequency signal source. The transducer propagates surface acoustic waves on the crystal, which produce a periodic deformation on the mirror surface which functions as a phase grating. A light beam directed onto the mirror surface will therefore be deflected at an angle dependent on the acoustic frequency of the surface waves. A plurality of transducers arranged approximately in a semicircle on the crystal and selectively actuated provides a two-dimensional scanning system.
Abstract translation: 一种用于偏转光束的系统，该激光束包括晶体衬底，优选为压电体，其表面上具有反射涂层，其用作反射镜。 至少一个表面声波传感器安装在晶体上并由高频信号源致动。 传感器传播晶体上的表面声波，其在镜面上产生周期性变形，其用作相位光栅。 因此，指向镜面的光束将以取决于表面波的声频的角度偏转。 在晶体上大致半圆形布置并选择性地致动的多个换能器提供二维扫描系统。
-
公开(公告)号：US3614462A
公开(公告)日：1971-10-19
申请号：US3614462D
申请日：1969-01-02
Applicant: IBM
Inventor： LEAN ERIC G , MYERS ROBERT A , PENNINGTON KEITH S
CPC classification number: H01S3/1083 , G02F1/39
Abstract: A system for parametric amplification and detection of signals using an acoustic diffraction device in combination with two or more laser cavities. Two types of operation are provided in the disclosure. In the first type of operation, two laser cavities are arranged so that the axes of the cavities intersect at a selected angle. An acoustic Bragg cell is located in the cavities at the intersection point. The two end mirrors of the first cavity are fully reflective. One mirror of the second cavity is fully reflective and the other mirror is partially reflective and partially transmissive. The first laser cavity is operated above threshold condition and the second cavity is operated below threshold condition. When a signal having a particular frequency f is applied to the Bragg cell, part of the laser light of the first cavity is diffracted into the second cavity and raises the gain of the cavity above the threshold condition. The second cavity then oscillates and the output of the second cavity is detected through the partially transmissive mirror. In the second type of operation, the structure is the same, however, if desired, both cavities may operate above threshold. When a signal at frequency f is applied to the Bragg cell, light is diffracted from the first cavity into the second cavity and the two cavities become coupled and oscillate only at frequencies which can be supported by the two cavities operating independently. The laser light from the output mirror therefore changes frequency indicating the detection of a signal at frequency f.
-
4.发明授权Method for making secondary holograms from multiplexed holograms or integral photographs wherein the screen effect is eliminated 失效用于从多个复合的霍乱形成的二次霍尔方法或者屏幕效应被消除的整合照片的方法
公开(公告)号：US3560070A
公开(公告)日：1971-02-02
申请号：US3560070D
申请日：1968-03-13
Applicant: IBM
Inventor： PENNINGTON KEITH S , POLE ROBERT V
CPC classification number: G03H1/26 , Y10S359/90
Abstract: A METHOD IS DESCRIBED FOR FORMING SECONDARY HOLOGRAMS FROM EITHER A MULTIPLEXED (I.E. SAMPLED) HOLOGRAM OR FROM AN INTEGRAL PHOTOGRAPH WHEREIN THE SCREEN EFFECT NORMALLY PRODUCED BY EITHER THE MULTIPLEXED HOLOGRAM OR THE INTEGRAL PHOTOGRAPH IS ELIMINATED. AN INTEGRAL PHOTOGRAPH IS A PHOTOGRAPHIC RECORDING OF AN OBJECT THROUGH A PLANE ARRAY OF FLY''S EYES LENSES FROM WHICH THREEDIMENSIONS REAL AND VIRTUAL IMAGES CAN BE LATER OBSERVED. A MULTIPLEXED OR SAMPLED HOLOGRAM IS A HOLOGRAM WHICH IS FORMED BY INTERLACING A PLURALITY OF HOLOGRAMS IN A SINGLE EMULSION USING A MASK PLACED IN THE REFERENCE AND/ OR THE INTEGRAL PHOTOGRAPH IS ELIMINATED. AN INTEGRAL PHOTOGRAPH OR HOLOGRAM OF AN INTEGRAL PHOTOGRAPH, A SCREEN OR GRID EFFECT IS PRODUCED DUE TO THE FACT THAT THE FLY''S EYE LENS ARRAY IS DISCONTINUOUS AND THE AREAS BETWEEN THE LENSES IN THE ARRAY DO NOT RECORD ANY INFORMATION. IN OBSERVING THE IMAGE FROM A MULTIPLEXED HOLOGRAM, A SIMILAR SCREEN OR GRID EFFECT DUE TO THE FACT THAT A MASK WAS EMPLOYED IN PRODUCING A MULTIPLEXED HOLOGRAM. IN THE METHOD OF THE PRESENT INVENTION, A SECONDARY HOLOGRAM IS RECORDED IN THE FOURIER TRANSFORM PLANE OF THE IMAGE AND THE SECONDARY HOLOGRAM PLATE IS TRANSLATED IN THE FOURIER PKANE A NUMBER OF TIMES AND A SEPARATE RECORDING OF THE IMAGE IS SUPERIMPOSED FOR EACH TRANSLATION. SINCE THE SECONDARY HOLOGRAM PLATE IS IN THE FOURIER PLANE OF THE IMAGE, THE IMAGE DOES NOT SHIFT DUE TO THE TRANSLATION OF THE PLATE. HOWEVER, SINCE THE SECONDARY HOLOGRAM PLATE IS NOT IN THE FOURIER PLANE OF THE INTEGRAL PHOTOGRAPH OR THE MULTIPLEXED HOLOGRAM AS THE CAUSE MAY BE, THE GRID WILL BE RECORDED AT DIFFERENT LOCATION ON THE SECONDARY HOLOGRAM FOR EACH TRANSLATION, THAT IS, THE GRID WILL SHIFT DUE TO THE TRANSLATION OF THE HOLOGRAM. THE SHIFTING OF THE GRID FOR THE SUCCESSIVE RECORDINGS WILL CAUSE IT TO SMEAR OUT AND WILL NOT BE VIEWABLE IN THE RESULTANT SECONDARY HOLOGRAM.
-
5.发明授权Method and device for detecting the velocity of droplets formed from a liquid stream 失效用于检测从液体流形成的液滴的速度的方法和装置
公开(公告)号：US3907429A
公开(公告)日：1975-09-23
申请号：US49569674
申请日：1974-08-08
Applicant: IBM
Inventor： KUHN LAWRENCE , MYERS ROBERT A , PENNINGTON KEITH S , SHAH BANKIM R
Abstract: Droplets from a liquid stream are directed between a pair of apertures and a light source, which is strobed at a selected frequency and directed toward the apertures. In one embodiment, the apertures are spaced less than a wavelength of the droplets apart and the light source is strobed at a frequency other than the frequency of the droplets. The time between when a first of the apertures is blocked by a droplet in the stream as indicated by the light being broken during a strobe and the time when a second of the apertures is blocked by another droplet when the light source is strobed is counted. This period of time will give the velocity of the droplets, and correction of the velocity is made, if the velocity of the droplets is not at the desired velocity, by changing the pressure, for example, of the manifold supplying the liquid stream until the desired velocity is obtained. In another embodiment, the apertures are spaced from each other a wavelength or an integral of the wavelength of the droplets, and the light source is strobed at the same frequency as the frequency at which the droplets are generated. The strobing frequency has its phase changed relative to the frequency of drop generation and the pressure of the stream changed until both of the apertures are blocked simultaneously. Any deviation from this indicates that the velocity of the droplets has changed and correction must be made.
Abstract translation: 来自液体流的液滴被引导在一对孔和光源之间，该光源以选定的频率被选通并指向孔。 在一个实施例中，孔径间隔小于液滴的波长，并且光源以不同于液滴的频率的频率被选通。 在第一个孔之间的时间之间被流中的液滴阻挡，如在选通期间被断开的光所示，并且当光源被选通时，第二个孔被另一个液滴阻挡的时间被计数。 这个时间段将给出液滴的速度，如果液滴的速度不是所需的速度，则通过改变供应液体流的歧管的压力直到 获得所需的速度。 在另一个实施例中，孔彼此间隔开波长或液滴的波长的整体，并且以与产生液滴的频率相同的频率选通光源。 选通频率相对于液滴产生的频率具有相位变化，并且流的压力改变，直到两个孔同时被阻挡。 与此有任何偏差，表示液滴的速度发生变化，必须进行校正。
-
Patent Agency Ranking6.发明专利
公开(公告)号：CA1221834A
公开(公告)日：1987-05-19
申请号：CA467385
申请日：1984-11-08
Applicant: IBM
Inventor： AFZALI-ARDAKANI ALI , COHEN MITCHELL S , PENNINGTON KEITH S , SACHDEV KRISHNA G
Abstract: SCRATCH RESISTANT RECORDING MATERIALS FOR ELECTROEROSION PRINTING NOT REQUIRING A LUBICANT OVERCOAT Electroerosion recording materials of superior scratch resistance are provided without the need for a lubricant overcoat by incorporating a hard, luricating hydrophobic polymer layer between the support and the removable, thin conductive layer to reduce plastic deformation of the support under stylus writing pressure. The intermediate polymer layer provides a highly adhering surface for the overlying aluminum film and contains graphite fluoride and/or fluorocarbon resins such as TeflonR and hard particles such as silica. The materials may be used in various printing processes including making directly readable images, direct negatives and wear resistant offset printing masters.
-
公开(公告)号：CA1221831A
公开(公告)日：1987-05-19
申请号：CA465431
申请日：1984-10-15
Applicant: IBM
Inventor： AFZALI-ARDAKANI ALI , COHEN MITCHELL S , PENNINGTON KEITH S , SACHDEV KRISHNA G
Abstract: RECORDING MATERIALS OF IMPROVED LUBRICITY FOR USE IN ELECTROEROSION PRINTING Electroerosion recording materials are provided with a surface lubricant film of particulate lubricating nonconductive graphite fluoride and optional conductive materials in a polymeric binder. The lubricating agents reduce stylus scratching of the conductive layer during electroerosion printing, improve contrast, provide a beneficial coating on the writing electrode or stylus and improve the handling and writing characteristics of the recording material. The lubricating agents/polymer films are especially useful (1) where the substrate of the recording material is light transmissive and, after the electroerosion process, the resulting product is suitable for direct-negative applications and (2) where direct offset masters are produced by removal of noneroded lubricant film.
-
公开(公告)号：DE2617885A1
公开(公告)日：1976-11-25
申请号：DE2617885
申请日：1976-04-23
Applicant: IBM
Inventor： HOCHBERG FREDERICK , PENNEBAKER WILLIAM B , PENNINGTON KEITH S
-
公开(公告)号：DE3878393D1
公开(公告)日：1993-03-25
申请号：DE3878393
申请日：1988-09-09
Applicant: IBM
Inventor： AFZALI-ARDAKANI ALI , DESAI MUKESH , FACTOR BRADFORD J , HOEKSTRA JAN-PIETER , PENNINGTON KEITH S
IPC: B41M5/382 , B41C1/055 , B41C1/06 , B41C1/10 , B41J2/42 , B41M5/26 , G01D15/10 , H05K3/04 , B41M5/24
Abstract: An improved apparatus and process are described in which metal images are transferred to a softenable receiving layer (32) using commercially available multi-stylus recording heads (10). The transfer medium is comprised of a resistive layer (16) and a thin metal layer (14) thereon. Electrical currents are provided by the recording styli (18) of the multi-stylus recording head. Localized electrical currents in the resistive layer (16) provide sufficient heat in the metal layer (14) to soften regions of a meltable receiving layer (32) when it is brought into contact with said heated metal layer. Metal imaging for use in printed circuit board manufacture and in formation of printing masters can be transferred by this technique.
-
公开(公告)号：CA1248648A
公开(公告)日：1989-01-10
申请号：CA489570
申请日：1985-08-28
Applicant: IBM
Inventor： ANDERSON KAREN L , PENNEBAKER WILLIAM B , PENNINGTON KEITH S
Abstract: The method according to the present invention enlarges a binary digital image by a method comprising the steps of: storing the rows of the image as a plurality of run end representations, in which a row is represented as a sequence of values giving the white and black run ends; enlarging each row of the image along the horizontal axis by altering the value of each run end representation to achieve enlargement on the horizontal axis by a factor F1; enlarging the image along the vertical axis by interpolating rows between the lines of the partially enlarged image so as to produce enlargement along the vertical axis by a factor F2; storing the enlarged size image generated by the above steps in run end form. An image enlarged by the method of the present invention may be reduced by the simple technique of dividing the image into blocks of pixels and assigning one pixel in a reduced image for each block of pixels in the larger image. Each pixel in the reduced image may by set equal to a center pixel in each block.
-
-
-
-
-
-
-
-
-
Search Results
32
records
(took 0.017 seconds)
