公开(公告)号：EP0120366A3

公开(公告)日：1986-10-08

申请号：EP84102482

申请日：1984-03-08

Applicant: POLAROID CORPORATION

Inventor： Plummer, William T.

IPC: G02B07/26

CPC classification number: G02B6/29308 ,  G02B6/2931

Abstract: Apparatus for optically coupling a plurality of optical fibers, each of which can carry information signals on one or more modulated electromagnetic waves having preassigned wavelengths, such that predetermined portions of any output from any fiber is selectively directed by the apparatus into the ends of various combinations of other optical fibers in accordance with predesignated wavelengths associated with each combination. The apparatus comprises, in prefered form, an optical element and a holographic layer having interferometrically formed therein index of refraction variations to facilitate the selective direction of the output signals from the optical fibers.

公开(公告)号：EP0189664A2

公开(公告)日：1986-08-06

申请号：EP85309246.8

申请日：1985-12-18

Applicant: POLAROID CORPORATION

Inventor： Plummer, William T.

IPC: H04N1/036

CPC classification number: B41J2/45 ,  H04N1/036 ,  H04N1/193

Abstract: A line exposure array of light emitting diodes (26a, 26b) arranged in spaced apart relationship with respect to each other in a line (A-A) is described. The array is geometrically configured to provide a substantially uniform exposure of a photosensitive material without underexposed stripes appearing on those areas of the photosensitive material Immediately adjacent the spaces between the light emitting diodes.

公开(公告)号：EP0120366A2

公开(公告)日：1984-10-03

申请号：EP84102482.1

申请日：1984-03-08

Applicant: POLAROID CORPORATION

Inventor： Plummer, William T.

IPC: G02B6/24 ,  G02B6/34

CPC classification number: G02B6/29308 ,  G02B6/2931

Abstract: Apparatus for optically coupling a plurality of optical fibers, each of which can carry information signals on one or more modulated electromagnetic waves having preassigned wavelengths, such that predetermined portions of any output from any fiber is selectively directed by the apparatus into the ends of various combinations of other optical fibers in accordance with predesignated wavelengths associated with each combination. The apparatus comprises, in prefered form, an optical element and a holographic layer having interferometrically formed therein index of refraction variations to facilitate the selective direction of the output signals from the optical fibers.

Abstract translation: 用于光学耦合多个光纤的设备，每个光纤可以在具有预分配波长的一个或多个调制电磁波上承载信息信号，使得来自任何光纤的任何输出的预定部分被该设备选择性地引导到各种组合的端部 根据与每个组合相关联的预先指定的波长的其它光纤。 该装置以优选的形式包括光学元件和全息层，其具有在其中具有折射率变化的干涉测量，以便于来自光纤的输出信号的选择性方向。

公开(公告)号：EP0093394A2

公开(公告)日：1983-11-09

申请号：EP83104120.7

申请日：1983-04-27

Applicant: POLAROID CORPORATION

Inventor： Plummer, William T.

IPC: G03C5/54 ,  G03C1/76

CPC classification number: G03C1/76 ,  G03C8/52

Abstract: An optical barrier layer for use in reflection type image carrying media of the type wherein a thin transparent image receiving layer includes an image which is viewed through one side of the image receiving layer with ambient light that is reflected from a light scattering layer located on the other side of the image-receiving layer. The optical barrier layer is a thin, transparent layer located between the image receiving layer and the light scattering layer and operates to minimize nonlinear density effects of multiple internal reflections.

Abstract translation: 一种用于这种类型的反射型图像承载介质的光学阻挡层，其中薄的透明图像接收层包括通过从位于图像接收层的光散射层反射的环境光观察的图像 图像接收层的另一侧。 光学阻挡层是位于图像接收层和光散射层之间的薄的透明层，并且操作以最小化多个内部反射的非线性密度效应。

公开(公告)号：EP0583044A3

公开(公告)日：1994-05-25

申请号：EP93300993.8

申请日：1993-02-11

Applicant: POLAROID CORPORATION

Inventor： Cottrell, F. Richard ,  Juenger, Andrew K. ,  Mackenzie, Hugh R. ,  Plummer, William T. ,  McCune, William J., Jr.

IPC: H04N1/46 ,  G03C8/48

CPC classification number: G03C8/48 ,  H04N1/48

Abstract: A novel method and apparatus is disclosed for electronically sensing a negative and a positive in a novel integral film structure (4) of the instant development type using light of different wavelengths so as to produce reflected light from the negative and the positive which are indicative of the luminance characteristics and the chrominance characteristics of the image. The novel integral film structure has a filter which allows the negative to be scanned. Specifically, the filter transmits incident radiation in the range of wavelengths other than a select range of wavelengths to which silver halide emulsion layers are sensitive and blocks the transmission of radiation in the range of wavelengths to which the silver halide emulsion layers are sensitive.

公开(公告)号：EP0327929B1

公开(公告)日：1994-05-04

申请号：EP89101633.9

申请日：1989-01-31

Applicant: POLAROID CORPORATION

Inventor： Plummer, William T.

IPC: G06K15/22 ,  H04N1/04

CPC classification number: H04N1/0678 ,  G01D5/264 ,  G01D5/36 ,  H04N1/047 ,  H04N1/06 ,  H04N2201/02416 ,  H04N2201/02439 ,  H04N2201/03108 ,  H04N2201/0471 ,  H04N2201/04724 ,  H04N2201/04727 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04734 ,  H04N2201/04755 ,  H04N2201/04756 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04794

Abstract: A system for precisely positioning a printing element relative to a rotating drum, as in a drum printer, employs two position signals for alignment purposes. A pair of linear grids is disposed along a path of travel of the printing element for generating, with the aid of optical beam and sensor devices, a periodic electric signal which varies in accordance with printing element position. One of the grids is stationary and the second of the grids moves with a carriage supporting the printing element. An encoder positioned alongside the drum is operative with a set of markings having a variation in spatial frequency, or a grid overlay, to produce an alternating electric signal which varies in accordance with rotational position of the drum. Motors which rotate the drum as well as a lead screw which translates the printing element may be constructed as synchronous motors to permit phase locking to each other. Circuitry responsive to periodic signals outputted by the linear grids and the encoder introduce phase shift between motor drive signals to align position of the printing element with position of the drum independently of any backlash which may be present between the lead screw and the carriage driven by the lead screw.

公开(公告)号：EP0257713B1

公开(公告)日：1994-04-20

申请号：EP87201577.1

申请日：1987-08-20

Applicant: POLAROID CORPORATION

Inventor： Ford, Vernon E. ,  Jones, Jeremy K. ,  Mader, John J. ,  Plummer, William T.

IPC: G11B5/58

CPC classification number: G11B5/59677 ,  G11B5/82

公开(公告)号：EP0531839A1

公开(公告)日：1993-03-17

申请号：EP92114820.1

申请日：1992-08-29

Applicant: POLAROID CORPORATION

Inventor： Bloom, Iris B.K. ,  Minns, Richard A. ,  Plummer, William T.

IPC: G03C8/52

CPC classification number: G03C8/52 ,  Y10S430/151

Abstract: An imaging medium comprises means for providing a light-reflecting layer, an image-receiving layer for receiving image-forming components, a transparent layer superposed over the image-receiving layer such that an image in the image-receiving layer can be viewed through the transparent layer against the light-reflecting layer, and an image enhancement layer disposed between the image-receiving layer and the transparent layer, the image enhancement layer having a refractive index less than that of the transparent layer and the image-receiving layer and not greater than about 1.43. The image enhancement layer decreases internal reflections within the medium and thereby improves the quality of the image seen. The imaging medium can be used as the imaging element of a diffusion transfer process film unit.

Abstract translation: 成像介质包括用于提供光反射层的装置，用于接收图像形成部件的图像接收层，叠加在图像接收层上的透明层，使得图像接收层中的图像可以通过 透明层，以及设置在图像接收层和透明层之间的图像增强层，图像增强层的折射率小于透明层和图像接收层的折射率，而不是更大 约1.43。 图像增强层减小介质内的内部反射，从而提高所图像的质量。 成像介质可以用作扩散转移处理膜单元的成像元件。

公开(公告)号：EP0188711B1

公开(公告)日：1992-04-29

申请号：EP85115305.6

申请日：1985-12-03

Applicant: POLAROID CORPORATION

Inventor： Plummer, William T.

IPC: G01J1/04

CPC classification number: G01J1/04 ,  G01J1/0411 ,  G01J1/0437 ,  G01J1/0492

公开(公告)号：EP0363347A3

公开(公告)日：1992-01-22

申请号：EP89890230.9

申请日：1989-09-04

Applicant: POLAROID CORPORATION

Inventor： Plummer, William T.

IPC: G06K15/12 ,  G02B27/00

CPC classification number: G02B19/0057 ,  G02B3/08 ,  G02B5/3083 ,  G02B19/0009 ,  G02B19/009 ,  G02B27/09 ,  G02B27/0972 ,  H01S3/005

Abstract: Phase array apparatus for use with a lens system to provide a substantially smooth, uniform image of a laser array comprised of a multiplicity of lasers wherein the phase of the radiation emitted by the lasers alternates by an amount which is substantially equal to 180°. The phase array includes: (1) phase means, disposed substantially at a far-field image of the laser array formed by the lens system, which far-field image comprises two prominent lobes, for changing the phase of the radiation in the two prominent lobes by 90° with respect to the phase of the remaining radiation in the far-field image in order to convert the near-field image of the laser array into a finite-length sine pattern and (2) means, such as a wedge prism or a split lens, disposed preferably near a far-field image but not at a near-field image, for angularly shifting one half of the phase shifted far-field image with respect to the other to form a pair of near-field images which are spatially shifted with respect to each other by one-half cycle of the sine wave, whereby a substantially smooth, uniform image of the laser array is formed.