公开(公告)号：EP2615495A1

公开(公告)日：2013-07-17

申请号：EP11823652.0

申请日：2011-09-08

Applicant: Dai Nippon Printing Co., Ltd.

Inventor： KURASHIGE Makio ,  ISHIDA Kazutoshi ,  TAKANOKURA Tomoe ,  OOYAGI Yasuyuki

IPC: G03B21/14 ,  F21S2/00 ,  G02B5/30 ,  G03B35/18 ,  G03H1/22 ,  F21Y101/02

CPC classification number: G03B21/14 ,  F21V9/14 ,  G02B5/0252 ,  G02B27/286 ,  G02B27/48 ,  G03B21/2033 ,  G03B21/2066 ,  G03B21/2073 ,  G03B21/208 ,  G03B21/40 ,  G03B35/18 ,  G03H1/0005 ,  G03H1/20 ,  G03H1/22 ,  G03H1/2286 ,  G03H1/32 ,  G03H2222/31 ,  G03H2222/36

Abstract: Provided is an illumination device for a projection device, which is appropriate to stereoscopic display and allows speckles to be inconspicuous. The illumination device includes: an optical element (50) which including a hologram recording medium (55) including a first zone Z1 and a second zone Z2 and can reproduce an image 5 of a scattering plate 6; an irradiation device (60) which irradiates the optical element with a coherent light beam such that the light beam is allowed to scan the hologram recording medium; and a polarization control unit (70) provided on an optical path of the light beam to an illuminated zone (LZ). The light beams incident on respective positions of the hologram recording medium are allowed to reproduce the image superimposed on the illuminated zone. The polarization control unit (70) controls polarization of the light beams such that the light beam incident on the first zone to travel toward the illuminated zone and the light beam incident on the second zone to travel toward the illuminated zone are configured with different polarization components.

Abstract translation: 本发明提供一种适用于立体显示的投影装置的照明装置，能够使斑点不明显。 照明装置包括：光学元件（50），其包括包括第一区域Z1和第二区域Z2的全息图记录介质（55），并且可以再现散射板6的图像5; 照射装置（60），其照射所述光学元件具有相干光束，使得所述光束被允许扫描所述全息图记录介质; 以及偏振控制单元（70），设置在光束到照明区域（LZ）的光路上。 入射到全息图记录介质的相应位置的光束被允许再现叠加在照明区域上的图像。 偏振控制单元（70）控制光束的偏振，使得入射在第一区域上的光束朝着照明区域行进，并且入射到第二区域的光束朝着被照射区域行进，配置有不同的偏振分量 。

公开(公告)号：EP2615496B1

公开(公告)日：2019-01-02

申请号：EP11823653.8

申请日：2011-09-08

Applicant: Dai Nippon Printing Co., Ltd.

Inventor： TAKANOKURA Tomoe ,  ISHIDA Kazutoshi ,  KURASHIGE Makio ,  OOYAGI Yasuyuki

IPC: G02B5/18 ,  G02B5/32 ,  G02B26/10 ,  G02B27/09 ,  G02B27/48 ,  G03B21/20 ,  G03B33/06 ,  G03H1/22 ,  G03H1/32 ,  H04N9/31

公开(公告)号：EP3287843A1

公开(公告)日：2018-02-28

申请号：EP16783287.2

申请日：2016-04-22

Applicant: Dai Nippon Printing Co., Ltd.

Inventor： KURASHIGE Makio ,  NAKATSUGAWA Kaori ,  ISHIDA Kazutoshi ,  HONDA Hiroyuki ,  UMEYA Masanori ,  KUBOTA Shogo

IPC: G03B21/60 ,  G02B5/02

CPC classification number: G03B21/60 ,  G02B5/003 ,  G02B5/02 ,  G02B27/48 ,  G03B21/567

Abstract: There is provided a screen capable of sufficiently reducing speckles. A screen for displaying an image by being irradiated with a light beam from a projector, is provided with a plurality of particles each including a first part and a second part different in dielectric constant, a particle layer having the plurality of particles, and electrodes which form an electric field for driving the particles of the particle layer by applying a voltage to the particle layer.

Abstract translation: 提供了能够充分减少斑点的屏幕。 用于通过用来自投影仪的光束照射来显示图像的屏幕设置有多个颗粒，每个颗粒包括介电常数不同的第一部分和第二部分，具有多个颗粒的颗粒层和电极 通过向粒子层施加电压形成用于驱动粒子层的粒子的电场。

公开(公告)号：EP3216650A1

公开(公告)日：2017-09-13

申请号：EP15857080.4

申请日：2015-11-06

Applicant: Dai Nippon Printing Co., Ltd.

Inventor： KURASHIGE Makio ,  SATO Tomoe ,  ISHIDA Kazutoshi

IPC: B60Q1/00 ,  B60Q1/04 ,  B60Q1/26 ,  F21S8/10 ,  F21S8/12 ,  G02B5/32 ,  G03H1/22 ,  G09F13/00

CPC classification number: B60Q1/16 ,  B60Q1/0035 ,  B60Q1/14 ,  B60Q1/24 ,  B60Q1/50 ,  B60Q2400/50 ,  F21S41/14 ,  F21S41/16 ,  F21S41/285 ,  F21S41/36 ,  F21S41/645 ,  F21S41/675 ,  F21S43/00 ,  G03B21/2033 ,  G03H1/2249 ,  G03H1/2286 ,  G03H1/30 ,  G03H1/32 ,  G03H2001/0232 ,  G03H2001/2218 ,  G03H2001/2231 ,  G03H2001/2234 ,  G03H2001/2271 ,  G03H2001/2273 ,  G03H2001/2284 ,  G03H2001/2292 ,  G03H2210/20 ,  G03H2222/18 ,  G03H2222/34 ,  G03H2225/31 ,  G03H2225/55 ,  G03H2227/03 ,  G03H2227/05 ,  G03H2270/22

Abstract: An illumination device has a coherent light source that emits coherent light beam, and an optical device that diffuses the coherent light beam, wherein the optical device comprises a first diffusion region that diffuses the coherent light beam to illuminate a first area, and a second diffusion region that diffuses the coherent light beam to display predetermined information in a second area.

Abstract translation: 一种照明装置具有发射相干光束的相干光源和扩散相干光束的光学装置，其中光学装置包括扩散相干光束以照射第一区域的第一扩散区域和第二扩散区域 扩散相干光束以在第二区域中显示预定信息的区域。

公开(公告)号：EP2615494B1

公开(公告)日：2016-11-09

申请号：EP10857012.8

申请日：2010-09-07

Applicant: Dai Nippon Printing Co., Ltd.

Inventor： KURASHIGE Makio ,  ISHIDA Kazutoshi ,  TAKANOKURA Tomoe ,  OYAGI Yasuyuki

IPC: G03B21/00 ,  G03B21/54 ,  G03H1/22 ,  G03H1/32 ,  G02B27/48 ,  G02B5/02 ,  G02B5/32 ,  G03B21/20 ,  G03B33/06 ,  H04N9/31 ,  G03H1/00

CPC classification number: G02B27/48 ,  G02B3/0006 ,  G02B5/0252 ,  G02B5/32 ,  G03B21/2033 ,  G03B21/208 ,  G03B33/06 ,  G03H1/0005 ,  G03H1/22 ,  G03H1/2286 ,  G03H1/32 ,  G03H2222/36 ,  H04N9/31 ,  H04N9/3129 ,  H04N9/3152 ,  H04N9/3161

Abstract: A laser beam (L50) generated by a laser light source (50) is reflected by a light beam scanning device (60) and irradiated onto a hologram recording medium (45). On the hologram recording medium (45), an image (35) of a scatter plate is recorded as a hologram by using reference light that converges on a scanning origin (B). The light beam scanning device (60) bends the laser beam (L50) at the scanning origin (B) and irradiates the laser beam onto the hologram recording medium (45). At this time, scanning is carried out by changing a bending mode of the laser beam with time so that an irradiation position of the bent laser beam (L60) on the hologram recording medium (45) changes with time. Regardless of an irradiation position of the beam, diffracted light (L45) from the hologram recording medium (45) produces a reproduction image (35) of the scatter plate on the spatial light modulator (200). The modulated image of the spatial light modulator (200) is projected onto a screen (400) by a projection optical system (300).