中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

60 records (took 0.025 seconds)

    IMAGE ON A CURVED DIFFUSIVE SURFACE
    2.
    发明申请
    IMAGE ON A CURVED DIFFUSIVE SURFACE 审中-公开
    图像在弯曲的扩散表面

    公开(公告)号：WO2005001542A1

    公开(公告)日：2005-01-06

    申请号：PCT/US2004/017305

    申请日：2004-06-03

    Applicant: EASTMAN KODAK COMPANY ,  LIANG, Rongguang ,  KESSLER, David

    Inventor： LIANG, Rongguang ,  KESSLER, David

    IPC: G02B13/16

    CPC classification number: G02B27/0025 ,  G02B13/16 ,  G02B27/225

    Abstract: An apparatus for forming an image on a curved diffusive surface (32) comprises an image source (94) for providing image-bearing light along an axis, a relay lens (54) for directing the image-bearing light toward the curved diffusive surface (32), and, a field lens (120) for redirecting off-axis image-bearing light toward the center of curvature of the curved diffusive surface (32).

    Abstract translation: 一种用于在弯曲漫射表面（32）上形成图像的装置包括用于沿轴线提供图像承载光的图像源（94），用于将图像承载光引向弯曲漫射表面的中继透镜（54） 32），以及用于将离轴图像承载光朝向弯曲漫射表面（32）的曲率中心重定向的场透镜（120）。

    OPTICAL SCANNER
    3.
    发明申请
    OPTICAL SCANNER 审中-公开
    光学扫描仪

    公开(公告)号：WO1990003589A1

    公开(公告)日：1990-04-05

    申请号：PCT/US1989004053

    申请日：1989-09-19

    Applicant: EASTMAN KODAK COMPANY

    Inventor： EASTMAN KODAK COMPANY ,  DEJAGER, Donald ,  KESSLER, David

    IPC: G02B26/10

    CPC classification number: G02B26/126

    Abstract: An optical scanner (10) is disclosed for scanning a light beam (50) onto a receiving medium (24). The scanner includes a rotatable polygon (20) for receiving a light beam (50) from a source (12) and for scanning the beam through a predetermined angle, and optical means (22) between the polygon (20) and receiving medium (24) for directing the beam to the receiving medium. In order to provide a very high resolution scanner which can be used to generate half-tone images, the optical means (22) includes a first lens element (30) having two spherical surfaces (40, 42), a second lens element (32) which has orthogonal cylindrical surfaces (46, 48), and a cylindrical mirror (34).

    BACKLIGHT ARRANGEMENT FOR UNIFORM ILLUMINATION USING SURFACE-EMITTING (LED) LIGHT SOURCES
    4.
    发明申请
    BACKLIGHT ARRANGEMENT FOR UNIFORM ILLUMINATION USING SURFACE-EMITTING (LED) LIGHT SOURCES 审中-公开
    使用表面发光（LED）光源进行均匀照明的背光布置

    公开(公告)号：WO2007050274A1

    公开(公告)日：2007-05-03

    申请号：PCT/US2006/039490

    申请日：2006-10-10

    Applicant: EASTMAN KODAK COMPANY ,  LEE, Junwon ,  KESSLER, David ,  MI, Xiang-Dong

    Inventor： LEE, Junwon ,  KESSLER, David ,  MI, Xiang-Dong

    IPC: G02F1/13357

    CPC classification number: G02F1/133602 ,  G02F1/133603 ,  G02F1/133611 ,  G02F2001/133507 ,  G02F2001/133607

    Abstract: A direct-view lighting arrangement (24) suitable for the backlight of a liquid crystal display (LCD) (22) , comprising (in that order) an array of surface-emitting light sources (LEDs) (14) with an angular luminous intensity distribution, an array of beam spreading optical elements (28) , an array of Fresnel lenses (32) to reduce beam divergence and an (optional) diffuser (38) . The refractive properties (convex and concave) of the beam spreading optical elements make the luminous flux essentially constant at the illumination plane (where the LCD is located). Thus, the beam spreading optical elements refract more light into higher beam angles thus compensating for the corresponding fall-off in luminous intensity of the sources. The thin sheet of Fresnel lenses reduces the divergence of the beams and directs them on to the diffuser. The (weak) diffuser serves to add a further beam divergence suitable for various applications, rather than itself producing uniformity in the illumination. The arrangement allows for a slimmer backlight design, eliminating the need for a strong diffuser having a high haze value (>90%). Keywords: Lambertian source,- illuminance, -luminance.

    Abstract translation: 一种适用于液晶显示器（LCD）（22）的背光源的直视照明装置（24），包括（依次）具有角度发光强度的表面发射光源（LED）阵列（14） 光束扩散光学元件阵列（28），减少光束发散的菲涅尔透镜阵列（32）和（可选）扩散器（38）。 光束扩散光学元件的折射特性（凸和凹）使光束在照明平面（LCD所处的位置）基本恒定。 因此，光束扩展光学元件将更多的光折射成更高的光束角度，从而补偿源的发光强度的相应的脱落。 菲涅尔透镜的薄片减少了光束的发散，并将它们引导到扩散器上。 （弱）扩散器用于增加适用于各种应用的另外的光束发散，而不是本身在照明中产生均匀性。 该布置允许更薄的背光设计，消除了对具有高雾度值（> 90％）的强扩散器的需要。 关键词：朗伯源， - 照度，亮度。

    LOW FILL FACTOR WIRE GRID POLARIZER
    5.
    发明申请
    LOW FILL FACTOR WIRE GRID POLARIZER 审中-公开
    低填充因数电网极化极

    公开(公告)号：WO2006036546A1

    公开(公告)日：2006-04-06

    申请号：PCT/US2005/032656

    申请日：2005-09-13

    Applicant: EASTMAN KODAK COMPANY ,  MI, Xiang-Dong ,  KESSLER, David ,  TUTT, Lee William ,  WELLER-BROPHY, Laura, A.

    Inventor： MI, Xiang-Dong ,  KESSLER, David ,  TUTT, Lee William ,  WELLER-BROPHY, Laura, A.

    IPC: G02B5/30

    CPC classification number: G02B5/3058 ,  G02F1/133528

    Abstract: In an example embodiment, a wire grid polarizer includes a plurality of parallel conductors having a pitch (P), a width (W), and a height (H). In example embodiments, a fill-factor (W/P) is greater than approximately 0.18 and less than approximately 0.25. In another example embodiment, a display system includes a light source and a light-valve. The display system also includes a wire grid polarizer that includes a plurality of parallel conductors having a pitch (P), a width (W), and a height (H). In example embodiments, a fill-factor (W/P) is greater than approximately 0.18 and less than approximately 0.25.

    Abstract translation: 在示例性实施例中，线栅偏振器包括具有间距（P），宽度（W）和高度（H）的多个平行导体。 在示例性实施例中，填充因子（W / P）大于约0.18且小于约0.25。 在另一示例性实施例中，显示系统包括光源和光阀。 显示系统还包括线栅偏振器，其包括具有间距（P），宽度（W）和高度（H）的多个平行导体。 在示例性实施例中，填充因子（W / P）大于约0.18且小于约0.25。

    HIGH RESOLUTION OPTICAL SCANNER
    7.
    发明申请
    HIGH RESOLUTION OPTICAL SCANNER 审中-公开
    高分辨率光学扫描仪

    公开(公告)号：WO1987005766A1

    公开(公告)日：1987-09-24

    申请号：PCT/US1987000463

    申请日：1987-03-09

    Applicant: EASTMAN KODAK COMPANY

    Inventor： EASTMAN KODAK COMPANY ,  KESSLER, David

    IPC: H04N01/04

    CPC classification number: H04N1/1205 ,  G02B26/126 ,  H04N1/1135 ,  H04N1/207 ,  H04N2201/0424

    Abstract: A high resolution optical scanner (10; 40; 50; 61) for scanning a light beam onto a receiving medium (22; 46; 64; M). The scanner includes a light source (13) for generating a light beam, optical means (16; 44; 56, 58; 67) for anamorphically shaping the beam, and a rotatable polygon (18; 42; 60; 63) for moving the light beam through a predetermined scan angle. In order to obtain high resolution throughout a scan line, a mirror (16; 44; 56, 58; 65), having power in the tangential plane and in the sagittal plane, is positioned to intercept the beam from the polygon (18; 42; 60; 63) and direct it to the receiving medium (22; 46; 64; M).

    BRIGHTNESS ENHANCEMENT FILM WITH LIGHT CONCENTRATORS
    8.
    发明申请
    BRIGHTNESS ENHANCEMENT FILM WITH LIGHT CONCENTRATORS 审中-公开
    亮度增强膜与轻型浓缩器

    公开(公告)号：WO2005121850A1

    公开(公告)日：2005-12-22

    申请号：PCT/US2005/017903

    申请日：2005-05-23

    Applicant: EASTMAN KODAK COMPANY ,  LEE, Junwon ,  KESSLER, David

    Inventor： LEE, Junwon ,  KESSLER, David

    IPC: G02B6/00

    CPC classification number: G02B6/0038 ,  G02B6/0065

    Abstract: A brightness enhancement article (30) provides light from a two-dimensional surface. The brightness enhancement article (30) has a plurality of light collecting structures (32), wherein each light collecting structure (32) is longitudinally extended in a length direction along the surface. Each light collecting structure (32) has an input aperture (33) optically coupled to a light-providing surface and an output aperture (35) distal from the input aperture (33), wherein the output aperture (35) has a surface area that is larger than the surface area of the input aperture (33). A pair of curved side walls (38) extend from the output aperture (35) toward the input aperture (33). In a cross section taken orthogonally with respect to the length direction, the curved side walls (38) approximate a parabolic curvature.

    Abstract translation: 亮度增强制品（30）提供来自二维表面的光。 亮度增强制品（30）具有多个聚光结构（32），其中每个聚光结构（32）沿着表面沿长度方向纵向延伸。 每个集光结构（32）具有与光提供表面光学耦合的输入孔（33）和远离输入孔（33）的输出孔（35），其中输出孔（35）的表面积 大于输入孔径（33）的表面积。 一对弯曲的侧壁（38）从输出孔（35）朝向输入孔（33）延伸。 在相对于长度方向垂直截取的横截面中，弯曲侧壁（38）接近抛物线曲率。

    BRIGHTNESS ENHANCEMENT ARTICLE
    9.
    发明申请
    BRIGHTNESS ENHANCEMENT ARTICLE 审中-公开
    亮度增强文章

    公开(公告)号：WO2005019879A1

    公开(公告)日：2005-03-03

    申请号：PCT/US2004/025226

    申请日：2004-08-04

    Applicant: EASTMAN KODAK COMPANY ,  MI, Xiang-Dong ,  KESSLER, David ,  DONNER, Janet Teresa

    Inventor： MI, Xiang-Dong ,  KESSLER, David ,  DONNER, Janet Teresa

    IPC: G02B5/04

    CPC classification number: G02B6/0053 ,  G02F1/133615

    Abstract: A brightness enhancement article for conditioning luminance from a light source (18) in a viewing direction is provided. A prism surface side (44) collects light from the light providing surface (14), where, in one embodiment, the prism surface side (44) has a series of substantially parallel grooves (30) forming a series of longitudinal trapezoidal prism elements (38). Each trapezoidal prism element (38) has a face plane (46) disposed toward the light source (18) and first and second legs (34,36) extending back from said face plane (46), respectively, forming first and second base angles β with the face plane (46), where both first and second base angles β satisfy: 90 degrees

    Abstract translation: 提供了一种用于调节来自观察方向的光源（18）的亮度的亮度增强制品。 棱镜表面侧（44）收集来自光提供表面（14）的光，其中在一个实施例中，棱镜表面侧（44）具有一系列基本上平行的形成一系列纵向梯形棱镜元件的凹槽（30） 38）。 每个梯形棱镜元件（38）具有朝向光源（18）设置的面平面（46）以及从所述面平面（46）向后延伸的第一和第二腿部（34,36），分别形成第一和第二底角 β面与平面（46），其中第一和第二底角β都满足：90度<底角β<120度。

    LASER PRINTER
    10.
    发明申请
    LASER PRINTER 审中-公开
    激光打印机

    公开(公告)号：WO1991006175A1

    公开(公告)日：1991-05-02

    申请号：PCT/US1990005634

    申请日：1990-10-05

    Applicant: EASTMAN KODAK COMPANY

    Inventor： EASTMAN KODAK COMPANY ,  KESSLER, David

    IPC: H04N01/46

    CPC classification number: H04N1/502 ,  G06K15/1219 ,  G06K15/129

    Abstract: A laser printer is disclosed which is adapted to be used for color imaging. The printer (10) comprises three diode lasers (97), each of which emits a light beam at a different wavelength. Each of the light beams passes along a separate channel (a-c) to a pair of dichroic plates (18, 20) which combine the three beams into a single combined beam. The combined beam is scanned by a polygon (40) onto a receiving medium (46) which is sensitive to the infrared. Two cylindrical lenses (29a, 30a, 29b, 30b, 29c, 30c) in each channel are used to focus the beam in the channel at a registration plane (32) located after the dichroic plates (18, 20). An optical relay (38) is used to transfer the combined beam from the registration plane (32) to the polygon (40) and to focus the beam in a cross-scan direction on the polygon (40). The polygon (40) is optically conjugated to the image plane in order to achieve cross-scan error correction.

Patent Agency Ranking