公开(公告)号：EP3137946A4

公开(公告)日：2018-03-14

申请号：EP15786627

申请日：2015-04-30

Applicant: BROOKER GARY

Inventor： BROOKER GARY ,  SIEGEL NISAN

IPC: G03H1/08 ,  G03H1/04

CPC classification number: G03H1/041 ,  G02B1/08 ,  G02B5/3016 ,  G02B5/3083 ,  G02B27/283 ,  G03H1/0443 ,  G03H1/06 ,  G03H2001/005 ,  G03H2001/0216 ,  G03H2001/0447 ,  G03H2222/31 ,  G03H2223/17 ,  G03H2223/20

Abstract: The inventors have discovered a method to improve image quality in holography and, for the first time, utilize lenses made from birefringent materials to advantageously split an incoming beam of either coherent or incoherent light into two coincident beams with different focal lengths that interfere with one another and thus create holograms free of electro-optical or pixelated devices. This discovery has many advantages over current methods to create holograms in which many components, including multiple lenses, other electro-optical devices, and/or beam paths are necessary to create holograms. The current invention provides a purely optical holographic process which has better performance and holographic simplicity, in addition to being able to miniaturize holographic processes more than is currently possible in state of the art holography systems.

公开(公告)号：EP3245562A1

公开(公告)日：2017-11-22

申请号：EP16700341.7

申请日：2016-01-11

Applicant: Leonhard Kurz Stiftung & Co. KG ,  OVD Kinegram AG

Inventor： SCHILLING, Andreas ,  TOMPKIN, Wayne, Robert ,  LUTZ, Norbert ,  HANSEN, Achim

IPC: G03H1/20 ,  G03H1/30 ,  G03H1/04 ,  G03H1/00 ,  G02B5/18

CPC classification number: G03H1/0248 ,  G02B5/1842 ,  G02B5/1861 ,  G02B27/288 ,  G02B27/4261 ,  G03H1/0011 ,  G03H1/0244 ,  G03H1/0476 ,  G03H1/20 ,  G03H1/202 ,  G03H1/265 ,  G03H1/30 ,  G03H2001/0415 ,  G03H2001/0482 ,  G03H2001/0497 ,  G03H2001/205 ,  G03H2001/207 ,  G03H2001/2263 ,  G03H2001/2276 ,  G03H2001/2635 ,  G03H2001/266 ,  G03H2001/267 ,  G03H2210/52 ,  G03H2222/12 ,  G03H2222/13 ,  G03H2222/31 ,  G03H2222/36 ,  G03H2223/12 ,  G03H2223/13 ,  G03H2223/15 ,  G03H2223/19 ,  G03H2223/22 ,  G03H2223/53 ,  G03H2240/15 ,  G03H2240/41 ,  G03H2240/43

Abstract: The invention relates to a method for producing a volume hologram having at least one 1st area in a 1st colour and at least one 2nd area in a 2nd colour, having the steps of: a) providing a volume hologram layer comprising a photopolymer; b) arranging a master with a surface structure on the volume hologram layer; c) exposing the master to coherent light, wherein light that strikes at least one 1st subarea of the surface of the master is diffracted or reflected in the direction of the at least one 1st area of the volume hologram layer and light that strikes at least one 2nd subarea of the surface of the master is diffracted or reflected in the direction of the at least one 2nd area of the volume hologram, and wherein the light diffracted or reflected by the 1st and 2nd subareas differs in at least one optical property.

公开(公告)号：EP3052990A1

公开(公告)日：2016-08-10

申请号：EP14851007.6

申请日：2014-09-29

Applicant: Celloptic, Inc.

Inventor： SIEGEL, Nisan ,  ROSEN, Joseph ,  BROOKER, Gary

IPC: G03H1/04

CPC classification number: G03H1/0443 ,  G02B21/0068 ,  G02B21/16 ,  G03H1/041 ,  G03H1/06 ,  G03H5/00 ,  G03H2001/005 ,  G03H2001/0447 ,  G03H2222/24 ,  G03H2222/31 ,  G03H2223/22 ,  G03H2225/22

Abstract: A new optical arrangement that creates high efficiency, high quality Fresnel Incoherent Correlation Holography (FINCH) holograms using transmission liquid crystal GRIN (TLCGRIN) diffractive lenses has been invented. This is in contrast to the universal practice in the field of using a reflective spatial light modulator (SLM) to separate sample and reference beams. Polarization sensitive TLCGRIN lenses enable a straight optical path, have 95% transmission efficiency, are analog devices without pixels and are free of many limitations of reflective SLM devices. An additional advantage is that they create an incoherent holographic system that is achromatic over a wide bandwidth. Two spherical beams created by the combination of a glass and a polarization sensitive TLCGRIN lenses interfere and a hologram is recorded by a digital camera. FINCH configurations which increase signal to noise ratios and imaging speed are also described.

公开(公告)号：EP2838076A4

公开(公告)日：2015-12-23

申请号：EP13776181

申请日：2013-03-14

Applicant: NHK SPRING CO LTD

Inventor： HOSHINO HIDEKAZU ,  TAKEUCHI ITSUO ,  IDA TOHRU ,  SHIBUYA SEIYA

IPC: G09F3/02 ,  G03H1/02 ,  G09F3/14

CPC classification number: B42D25/328 ,  B42D25/425 ,  G02F1/0045 ,  G02F1/133305 ,  G02F1/133528 ,  G02F2001/133541 ,  G03H1/0011 ,  G03H1/0244 ,  G03H1/0252 ,  G03H1/0272 ,  G03H2222/31 ,  G03H2250/14 ,  G03H2250/34 ,  G03H2250/38 ,  G03H2250/40 ,  G03H2250/41 ,  G03H2270/12 ,  G03H2270/31 ,  G09F3/02 ,  G09F3/14 ,  G09F2003/0276 ,  G09F2003/0282

Abstract: An identification medium can be affixed to cloth or leather products by sewing. A cholesteric liquid crystal layer on which an embossed surface for forming a hologram is formed, is sandwiched between a first supporting member and a second supporting member. A mounting region that can be affixed to clothing, etc., by sewing, is formed.

Abstract translation: 识别介质可以通过缝制固定在布或皮革制品上。 在其上形成有用于形成全息图的压花表面的胆甾型液晶层夹在第一支撑构件和第二支撑构件之间。 形成可以通过缝制固定在衣服等上的安装区域。

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：EP2306251A4

公开(公告)日：2012-05-16

申请号：EP09758134

申请日：2009-06-05

Applicant: OPTWARE CORP

Inventor： HORIMAI HIDEYOSHI

IPC: G03H1/04

CPC classification number: G11B7/00 ,  G03H1/2249 ,  G03H1/30 ,  G03H2001/0415 ,  G03H2001/0417 ,  G03H2001/0419 ,  G03H2001/0482 ,  G03H2001/0497 ,  G03H2210/22 ,  G03H2210/30 ,  G03H2222/31 ,  G03H2223/20 ,  G03H2250/41 ,  G03H2250/42

公开(公告)号：EP1028359B1

公开(公告)日：2010-11-24

申请号：EP99940526.9

申请日：1999-08-27

Applicant: Nippon Mitsubishi Oil Corporation ,  NHK SPRING Co., Ltd. ,  DAI NIPPON PRINTING CO., LTD.

Inventor： SHIOZAWA, Akihito, Central Techn. Res. Lab. ,  SUZUKI, Shinichiro, Central Techn. Res. Lab ,  NISHIMURA, Suzushi, Central Techn. Res. Lab. ,  HOSHINO, Hidekazu ,  TAKEUCHI, Itsuo ,  SAKAKIBARA, Mikihiko, Dai Nippon Printing Co. Ltd ,  YOKOYAMA, Masumi

IPC: G03H1/18 ,  G02B5/30 ,  B44F1/12 ,  B42D15/10 ,  G07D7/00

CPC classification number: B42D25/328 ,  B42D25/364 ,  B42D2033/26 ,  G03H1/0011 ,  G03H1/02 ,  G03H1/0244 ,  G03H1/0256 ,  G03H2001/2244 ,  G03H2001/2276 ,  G03H2222/31 ,  G03H2250/10 ,  G03H2250/33 ,  G03H2250/34 ,  G03H2250/38 ,  G03H2250/40 ,  G03H2250/41 ,  G07D7/0032

Abstract: A genuineness detecting film (10) includes at least a reflecting film (11) having a circularly polarized light selectivity such that it reflects only a left-handed or right-handed circularly polarized light out of incident lights and generates a reflected light. On the reflecting film (11), a hologram forming portion (11a) is provided. The hologram forming portion (11a) reflects the same circularly polarized light as the reflected light in a direction different from the direction in which the reflected light travels and thereby to form a hologram image. Sensors disposed in different positions sense the reflected light from the reflecting film (11) and the hologram image from the hologram forming portion (11a), respectively.

公开(公告)号：EP1492125A1

公开(公告)日：2004-12-29

申请号：EP04014869.4

申请日：2004-06-24

Applicant: TDK Corporation

Inventor： Tsukagoshi, Takuya ,  Sato, Yuichi ,  Yoshinari, Jiro

IPC: G11C13/04 ,  G11B7/0065 ,  G03H1/04 ,  G03H1/26

CPC classification number: G03H1/0248 ,  G03H1/265 ,  G03H2001/266 ,  G03H2210/22 ,  G03H2222/31 ,  G03H2260/12 ,  G03H2260/54 ,  G11B7/1356 ,  G11C13/042

Abstract: In recording of information, an information beam (12a) as S-polarization is incident on an optical information recording medium (10). After passing through the optical information recording medium (10), the information beam is reflected by reflection apparatus (21) and passes through a polarization controller (22). In this process, the information beam undergoes S-polarization control and the polarization direction changes to P-polarization direction. The information beam interferes with a recording reference beam (12b) as P-polarization incident on a surface (10b) of the optical information recording medium (10) inside the optical information recording medium to form an interference pattern. In reproduction of information, a reproduction reference beam (12c) is incident on the surface (10b) of the optical information recording medium (10). The reproduction reference beam is then diffracted by a refractive index grating caused by an interference pattern formed in the optical information recording medium to form a reproduction beam. The reproduction beam is emitted from the surface (10b) of the optical information recording medium and is incident on a light receiving element (20). The original data is then reproduced.

Abstract translation: 该装置具有将光束分成信息光束（12a）和参考光束（12b）的分光器（13）。 光束入射在记录介质的表面（10b）上。 通过介质通过的光束（12a）由偏光控制器（22）进行圆偏振，并在反射装置（21）上被冷凝。 装置（21）将圆偏振光束反射到介质的另一表面（10a）上。 独立权利要求还包括以下内容：（a）光学信息记录方法（b）光学信息再现方法（c）光学信息记录和再现装置。

公开(公告)号：EP0701183A2

公开(公告)日：1996-03-13

申请号：EP95113507.8

申请日：1995-08-29

Applicant: Hughes Aircraft Company

Inventor： Wreede, John E. ,  Scott, James E. ,  Tanaka, David D.

IPC: G03H1/20 ,  G03H1/26

CPC classification number: G03H1/202 ,  G03H1/0248 ,  G03H1/28 ,  G03H2001/0413 ,  G03H2001/0415 ,  G03H2001/0419 ,  G03H2001/207 ,  G03H2001/2228 ,  G03H2001/2231 ,  G03H2001/2234 ,  G03H2001/2615 ,  G03H2001/267 ,  G03H2222/13 ,  G03H2222/31 ,  G03H2222/34 ,  G03H2222/52 ,  G03H2222/53 ,  G03H2223/25 ,  G03H2250/33 ,  G03H2250/35 ,  G03H2260/12 ,  G03H2260/30

Abstract: A hologram copying system includes a first reconstruction beam (RB1) and a second reconstruction beam (RB2) that is coherent with respect to the first reconstruction beam (RB1). A first master hologram (25) is responsive to the first reconstruction beam (RB1) for producing a first diffracted beam (DB1). A second master hologram (29) is responsive to the second reconstruction beam (RB2) for producing a second diffracted beam (DB2). A holographic recording layer (35) is responsive to the first and second reconstruction beams (RB1, RB2) and the first and second diffracted beams (DB1, DB2), whereby a first hologram is formed by interference of the first reconstruction beam (RB1) and the first diffracted beam (DB1), and a second hologram is formed by interference of the second reconstruction beam (RB2) and the second diffracted beam (DB2).

Abstract translation: 全息复印系统包括相对于第一重建光束（RB1）相干的第一重建光束（RB1）和第二重构光束（RB2）。 第一主全息图（25）响应于第一重建光束（RB1），用于产生第一衍射光束（DB1）。 第二主全息图（29）响应于第二重构光束（RB2），用于产生第二衍射光束（DB2）。 全息记录层（35）响应于第一和第二重构光束（RB1，RB2）和第一和第二衍射光束（DB1，DB2），由此通过第一重建光束（RB1）的干涉形成第一全息图， 和第一衍射光束（DB1），第二全息图由第二重构光束（RB2）和第二衍射光束（DB2）的干涉形成。 $$

公开(公告)号：EP0590826A3

公开(公告)日：1994-08-24

申请号：EP93307235.7

申请日：1993-09-14

Applicant: NHK SPRING CO.LTD.

Inventor： Takeuchi, Itsuo ,  Hoshino, Hidekazu ,  Sasaki, Mutsumi

IPC: G06K19/06 ,  G06K19/10 ,  B42D15/10

CPC classification number: G06K7/10831 ,  G03H1/0011 ,  G03H1/0244 ,  G03H1/0252 ,  G03H1/0272 ,  G03H2222/31 ,  G03H2240/55 ,  G03H2250/36 ,  G03H2250/41 ,  G06K19/06009 ,  G06K19/16 ,  G06K2019/0629

Abstract: Provided is an identification system which is highly effective in identifying the authenticity of an object and extremely difficult to analyze for the purpose of forgery. The object to be identified is affixed with an identification element comprising a reflective layer including a hologram, a diffraction grating or the like, which directs incident light of a prescribed wave length into a plurality of point symmetric directions, and a polarization plane rotating layer which rotates the polarization plane of the light as it passes through the polarization rotating layer.