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    33.
    发明专利
    未知

    公开(公告)号：DE69933917T2

    公开(公告)日：2007-09-06

    申请号：DE69933917

    申请日：1999-06-04

    Applicant: SEIKO EPSON CORP

    Inventor： YOKOYAMA OSAMU ,  SHIMODA TATSUYA ,  MIYASHITA SATORU

    IPC: G02B27/10 ,  G02B26/08 ,  G02B27/02 ,  G02B27/14 ,  G02B27/18 ,  G02F1/13 ,  G02F1/1335 ,  G02F1/13357

    Abstract: A red light source comprising an array of LEDs 102R that emit light of a red color, a green light source comprising an array of LEDs 102G that emit light of a green color, and a blue light source comprising an array of LEDs 102B that emit light of a blue color are deployed about the periphery of a dichroic prism 101. A liquid crystal display element is illuminated by a light source device configured such that the light from the respective light sources is synthesized into white light by the dichroic prism, and projection type liquid crystal display devices and the like are configured.

    34.
    发明专利
    未知

    公开(公告)号：DE69933917D1

    公开(公告)日：2006-12-21

    申请号：DE69933917

    申请日：1999-06-04

    Applicant: SEIKO EPSON CORP

    Inventor： YOKOYAMA OSAMU ,  SHIMODA TATSUYA ,  MIYASHITA SATORU

    IPC: G02B27/10 ,  G02B26/08 ,  G02B27/02 ,  G02B27/14 ,  G02B27/18 ,  G02F1/13 ,  G02F1/1335 ,  G02F1/13357

    Abstract: A red light source comprising an array of LEDs 102R that emit light of a red color, a green light source comprising an array of LEDs 102G that emit light of a green color, and a blue light source comprising an array of LEDs 102B that emit light of a blue color are deployed about the periphery of a dichroic prism 101. A liquid crystal display element is illuminated by a light source device configured such that the light from the respective light sources is synthesized into white light by the dichroic prism, and projection type liquid crystal display devices and the like are configured.

    35.
    发明专利
    未知

    公开(公告)号：DE69735782T2

    公开(公告)日：2006-10-26

    申请号：DE69735782

    申请日：1997-09-24

    Applicant: SEIKO EPSON CORP

    Inventor： YOKOYAMA OSAMU ,  MIYASHITA SATORU ,  KAMAKURA HIROSHI ,  SHIMODA TATSUYA

    IPC: G02F1/13357 ,  G03B21/16 ,  H04N9/31 ,  H05B33/02 ,  H05B44/00

    Abstract: A projection display apparatus employing organic EL elements is presented that is light in weight, is small in size, and can be practically implemented. In particular, the apparatus suppresses light-emission performance degradation caused by generated heat, thereby extending useful life, stabilizing brightness, and securing continual maximum brightness. The apparatus comprises: liquid crystal panels 12R, 12G, and 12B; light emitting units 13R, 13G, and 13B, positioned at the back of the liquid crystal panels and provided with organic EL elements as light emitting layers; and cooling bodies 14R, 14G, and 14B, positioned at the back of the light emitting units, for dispersing the heat generated by the light emitting layers. The cooling bodies 14R, 14G, and 14B may, for example, be electronic cooling elements that employ the Peltier effect to absorb and radiate the generated heat. Alternatively, the cooling bodies may be configured as heat-dispersing fins that guide and disperse generated heat.

    36.
    发明专利
    未知

    公开(公告)号：DE69926598T2

    公开(公告)日：2006-04-06

    申请号：DE69926598

    申请日：1999-07-23

    Applicant: SEIKO EPSON CORP

    Inventor： YOKOYAMA OSAMU ,  SHIMODA TATSUYA ,  MIYASHITA SATORU

    IPC: G09F9/00 ,  G02F1/13357 ,  H04N9/30

    Abstract: There is provided behind an optical modulation panel (101) which is not provided with a color filter a planar light source which is provided with EL elements (100R, 100G and 100B) with a built-in optical resonator structure adapted to emit light in red, green and blue and which are periodically arranged on a single glass substrate (103). Lights of different colors obtained by lighting the EL elements (100R, 100G and 100B) are modulated by an optical modulation panel (101) to obtain a color image.

    37.
    发明专利
    未知

    公开(公告)号：DE69731163T2

    公开(公告)日：2006-02-16

    申请号：DE69731163

    申请日：1997-05-09

    Applicant: SEIKO EPSON CORP

    Inventor： YOKOYAMA OSAMU ,  MIYASHITA SATORU ,  SHIMODA TATSUYA

    IPC: G02F1/13 ,  G02F1/1335 ,  G02F1/13357 ,  H01L51/52 ,  H04N9/31 ,  H05B33/12 ,  H05B33/22

    Abstract: A liquid-crystal projection device according to the present invention comprises an organic electroluminescent element 12 that is constituted by sandwiching an organic thin-film layer (125) between an electrode layer (126) that reflects light and a transparent electrode layer (123) that transmits light, and a transparent liquid crystal panel (20) that controls passage of light emitted from the surface of the organic electroluminescent element 12; and also comprises a half-mirror layer (121) arranged on the side where light is output from this transparent electrode layer (123) and that reflects some of the incoming light through the transparent electrode layer (123) to electrode layer (126) and that transmits the rest of this light; the distance between the half-mirror layer (121) and the electrode layer (126) being set to the optical distance of resonance of this light.

    38.
    发明专利
    未知

    公开(公告)号：DE69232283T2

    公开(公告)日：2002-05-23

    申请号：DE69232283

    申请日：1992-10-08

    Applicant: SEIKO EPSON CORP

    Inventor： KOMATSU AKIRA ,  KATADA TOSHIHARU ,  YOKOYAMA OSAMU

    IPC: G02C7/02 ,  G02C7/06

    Abstract: Two coordinate axes X and Y contacting the refracting interface of a lens for glasses according to the present invention are set on a predetermined point on the same refracting interface to define the directions of the coordinate axes and an XY plane including the two axes. When a perpendicular line is then drawn from an arbitrary point on the refracting interface to the XY plane with the length of this perpendicular line, the X coordinate of the intersection of the perpendicular line and XY plane and the Y coordinate of the same intersection represented by z, x and y respectively, a value of z is expressed by the equation (1) wherein R = X + Y ; Cx, Cy, Kx, Ky and An,m,j are constants determining the shape of a lens; n, m and j are integers of 2

    40.
    发明专利
    未知

    公开(公告)号：DE69119658T2

    公开(公告)日：1997-01-09

    申请号：DE69119658

    申请日：1991-07-10

    Applicant: SEIKO EPSON CORP

    Inventor： YOKOYAMA OSAMU ,  YONEKUBO MASATOSHI ,  IWANO HIDEAKI ,  SAKATA HIDEFUMI ,  TAKEDA TAKASHI ,  SEKI TETSUYA ,  KOGURE SHIGERU

    IPC: G11B7/08 ,  G11B7/09 ,  G11B7/12 ,  G11B7/13 ,  G11B7/135 ,  G11B11/10 ,  G11B11/105

    Abstract: A small and inexpensive optical head for detecting a recorded signal, a focusing error signal and a tracking error signal, and an optical memory device utilizing the optical head. A diffraction device (103) is provided having two chirped grating regions (103A, 103B) for dividing a light beam from an optical recording medium (105) and directing the divided beams toward four band-shaped photoelectric transducers (106) and an astigmatism generator formed by the diffraction means (103) and a positive lens (102). The four photoelectric transducers are positioned in a plane inclined with respect to the optical axis of zero-order diffraction light, and the longitudinal axes of each of the band-shaped photoelectric transducers are radially arranged relative to the optical axis.

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