公开(公告)号：EP0411325A3

公开(公告)日：1991-04-24

申请号：EP90112491.7

申请日：1990-06-29

Applicant: POLAROID CORPORATION

Inventor： Plummer, William T.

IPC: G03B21/134 ,  G02F1/135

CPC classification number: H04N1/4005 ,  H04N1/40031 ,  H04N1/502

Abstract: Method and apparatus which utilize an LCD modulator array for printing and/or enlarging an image recorded in a color film negative, a positive transparency or a color print, which LCD modulator array has pixels whose "closing time" (the time it takes to convert a pixel from a condition wherein it transmits radiation to a condition wherein it blocks radiation) is substantially longer than their "opening time" (the time it takes to convert a pixel from a condition wherein it blocks radiation to a condition wherein it transmits radiation). In accordance with the present invention, each pixel of the LCD modulator array is opened and closed in a rapid sequence, one after the other, at intervals which are much shorter than the closing time of the pixels of the LCD modulator array. The amount of radiation transmitted by each rapidly opened pixel is determined by detecting a spike of radiation which is transmitted through the rapidly opened pixel and by detecting and subtracting a background amount produced by radiation which is transmitted through other, slowly closing pixels.

公开(公告)号：EP0277714A3

公开(公告)日：1989-07-19

申请号：EP88300291.7

申请日：1988-01-14

Applicant: POLAROID CORPORATION

Inventor： Plummer, William T. ,  MacKenzie, Hugh R.

IPC: H04N9/04

CPC classification number: H04N5/2254 ,  H04N5/349 ,  H04N9/045

Abstract: A method and apparatus for improving the quality of an electronic image generated by a charge coupled device (CCD) array (28) that senses scene images through a prism (28A, 28B) or prismatic filter movable into and out of the path of image-containing light rays impinging on the colour filter overlying the CCD array that alternately shifts the scene image between colour filters of the CCD array that absorb particular scene image colours and those that transmit these colours to their associated CCDs while in the case of the prismatic filter absorbing the dominant scene colour generated by the coloured optical filter. Scene image signals generated by a CCD array (18) in this manner are processed such that their spatial relationship with respect to the second scene image is precisely monitored and electronically counter-shifted for subsequently scene image reconstruction. By shifting the scene image between individual CCDs having different colour optical filters, most of the CCDs in the CCD array can generate image signals for two different scene colours or scene colour combinations and thereby improve the image resolving capabilities and/or the colour balance of electronic images generated by the CCD array.

公开(公告)号：EP0201025A3

公开(公告)日：1989-02-22

申请号：EP86105854.3

申请日：1986-04-28

Applicant: POLAROID CORPORATION

Inventor： Smyth, William K. ,  Chen, Richard J. ,  Plummer, William T.

IPC: G03B27/73 ,  G03B27/72 ,  H04N1/46

CPC classification number: G03B27/725 ,  G03B27/735 ,  H04N1/50 ,  H04N1/502

Abstract: @ A laser scanning and printing apparatus operates to scan an original picture in generally low resolution to provide a minimal quantity of image data which may be modified to provide an enhanced image reproduction of the original by subsequently laser scanning the original and directing the laser light reflected from the original to expose a photosensitive material, the intensity of the laser light being modulated to effect the enhanced image reproduction by selectively lightening or darkening predetermined areas of the photosensitive material exposed by the laser light reflected from the original picture during the subsequent line scan thereof.

公开(公告)号：EP0120366B1

公开(公告)日：1988-11-17

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

公开(公告)号：EP0188711A3

公开(公告)日：1988-07-27

申请号：EP85115305

申请日：1985-12-03

Applicant: POLAROID CORPORATION

Inventor： Plummer, William T.

IPC: G01J01/04

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

Abstract: A photoresponsive apparatus is disclosed which in- dudes a photoresponsive device that provides an output or response having a characteristic which varies as a function of the radiant power and wavelength incident on a photoresponsive surface thereof. Included is a spectral filtering means associated with an optical assembly so as to provide the assembly with different f-number zones for each of the respectively different proportionalities of wavelengths such that the spectral composition of incident radiation reaching the surface is controlled by the spectral filtering means to effect a desired change in the response of the photoresponsive device.

公开(公告)号：EP0150860A3

公开(公告)日：1987-11-11

申请号：EP85101060

申请日：1985-02-01

Applicant: POLAROID CORPORATION

Inventor： Plummer, William T.

IPC: G02B06/38

CPC classification number: G02B6/2817 ,  G02B6/32 ,  G02B6/322

Abstract: An imaging component of unitary construction, molded of a transparent optical plastic, and adapted for use with a companion, preferably similar, component to optically couple optical fibers with one another. The component includes a lens surface arranged about an optical axis therethrough, a reference surface for facilitating mounting and positioning the component, and structure for facilitating receiving and positioning the end of an optical fiber at a fixed distance along the optical axis and behind the focus of the lens surface. The optical structure of the component is such that, when used with another axially spaced by a fixed distance and operating at finite conjugates as a pair, the optical fiber end in each is exactly imaged onto or within the entrance pupil of the other. This permits the axial separation between the two components to be substantially greater than the focal length of their lens surfaces so that, among other things, other components such beam-splitters can be introduced between the pair to perform multiplexing functions.

Abstract translation: 整体结构的成像组件，由透明光学塑料模制而成，并适合与伴侣，优选类似的组件一起使用，以将光纤彼此光学耦合。 该部件包括围绕穿过其中的光轴布置的透镜表面，用于便于安装和定位该部件的参考表面，以及用于促进光纤的端部沿着光轴以固定距离接收和定位并且在焦点 镜头表面。 该部件的光学结构是这样的，当与另一个轴向间隔固定距离并且以有限共轭作为一对操作的另一个一起使用时，每个中的光纤端部被精确地成像到另一个的入瞳上或内部。 这允许两个部件之间的轴向间隔基本上大于其透镜表面的焦距，使得除了别的之外，可以在该对之间引入其它部件，例如分束器以执行复用功能。

公开(公告)号：EP0242852A2

公开(公告)日：1987-10-28

申请号：EP87105847.5

申请日：1987-04-21

Applicant: POLAROID CORPORATION

Inventor： Plummer, William T.

IPC: G03B27/72 ,  G03B27/73

CPC classification number: G03B27/725 ,  G03B27/735 ,  H04N1/50 ,  H04N1/502 ,  H04N1/56 ,  H04N1/60

Abstract: An electronic printing method by which originals are photographically reproduced by exposing high-contrast copy material with an intensity modulated illumination source that coarsely scans the original while the original is sharply imaged with a well-cor­rected optical system. The source intensity is modulated to compensate for the original's tonal qualities and electronically shapes the response of the copy material to enhance tonal reproduction. The imaging system in conjunction with the high-contrast material assures high reproduction of detail. The method enhances copy sharp­ness and reduces copy time, memory and computational needs otherwise required for copies of comparable quality.

Abstract translation: 一种电子打印方法，通过在用正确校正的光学系统锐利地成像原稿的情况下，通过使用粗调扫描原稿的强度调制照明源曝光高对比度复印材料来照相原稿。 源强度被调制以补偿原始的色调质量，并且电子地形成复印材料的响应以增强色调再现。 与高对比度材料结合的成像系统确保细节的高再现性。 该方法提高了拷贝的清晰度，并缩短了可比质量副本所需的复制时间，内存和计算需求。

公开(公告)号：EP0194778A2

公开(公告)日：1986-09-17

申请号：EP86301303.3

申请日：1986-02-24

Applicant: POLAROID CORPORATION

Inventor： Plummer, William T. ,  Baker, Philip G.

IPC: G03B7/28 ,  G01J1/44

CPC classification number: G03B7/28

Abstract: A photosensor arrangement for providing an exposure influencing control signal in a photographic camera apparatus includes an array of photoresponsive elements (P 1 -P 4 ) each arranged to have a different field of view, signal-generating means (R 14 -R 22 ) for generating the exposure-influencing signal in response to signals from the photoresponsive elements, and means (R 1 -R 8 ; D 1 -D 8 ; A,-As; 10-24) controlling the transmission of the output signals from the photoresponsive elements to the signal-generating means (R 14 -R 22 ) and operative to block the signal path to the signal-generating means from the photoresponsive element or elements detecting the highest and/or lowest scene light intensity, or from any photoresponsive element which detects a scene light intensity which is above a maximum light intensity threshold and/or any photosensitive element which detects a scene light intensity which is below a minimum light intensity threshold.

公开(公告)号：EP0150860A2

公开(公告)日：1985-08-07

申请号：EP85101060.3

申请日：1985-02-01

Applicant: POLAROID CORPORATION

Inventor： Plummer, William T.

IPC: G02B6/38

CPC classification number: G02B6/2817 ,  G02B6/32 ,  G02B6/322

Abstract: An imaging component of unitary construction, molded of a transparent optical plastic, and adapted for use with a companion, preferably similar, component to optically couple optical fibers with one another. The component includes a lens surface arranged about an optical axis therethrough, a reference surface for facilitating mounting and positioning the component, and structure for facilitating receiving and positioning the end of an optical fiber at a fixed distance along the optical axis and behind the focus of the lens surface. The optical structure of the component is such that, when used with another axially spaced by a fixed distance and operating at finite conjugates as a pair, the optical fiber end in each is exactly imaged onto or within the entrance pupil of the other. This permits the axial separation between the two components to be substantially greater than the focal length of their lens surfaces so that, among other things, other components such beam-splitters can be introduced between the pair to perform multiplexing functions.

Abstract translation: 一种单一构造的成像部件，其由透明光学塑料模制而成，并且适于与伴侣（优选类似的部件）一起使用以使光纤彼此光学耦合。 该部件包括围绕其穿过的光轴布置的透镜表面，用于便于安装和定位部件的参考表面，以及用于便于将光纤的端部沿着光轴定位在固定距离并且在光轴后方的后方的结构 透镜表面。 组件的光学结构使得当与另一个轴向隔开固定距离并以有限共轭作为一对操作时，每个光纤端部精确地成像在另一个的入射光瞳上或其中。 这允许两个部件之间的轴向分离基本上大于其透镜表面的焦距，使得除其他之外，可以在该对之间引入诸如光束分离器的其它部件以执行复用功能。

公开(公告)号：EP0110140A1

公开(公告)日：1984-06-13

申请号：EP83110732.1

申请日：1983-10-27

Applicant: POLAROID CORPORATION

Inventor： Plummer, William T.

IPC: B29C45/04 ,  G02B6/24 ,  B29D11/00

CPC classification number: G02B6/3865 ,  B29C45/26 ,  B29C45/40 ,  B29D11/0075 ,  G02B6/322 ,  Y10S425/808

Abstract: © A method and apparatus for forming miniaturized optical components such as fiber optics connector terminals in which a three-part mold set is employed to attain precise concentricity of mold cavity formations carried by two of the three mold parts which are movable axially relative to and positioned by the third or central one of the three parts. The two movable parts are each located by oppositely diverging frustoconical reference surfaces on the central part and include mold surface components which are axially positionable relative to the parts in which they are carried. The central part is supported by a shuttle for movement between a molding position and an ejection position, appropriate ejection pins being located in spaced relation to the molding position so as not to interfere with the molding operation. Precise concentricity and axial location of the three mold parts is effected in substantial measure by application of a mold closing force exclusively along the common axis of the three parts and under a force limited to a pre-established value.