JP5170436B2 - 計算機合成ホログラムの作製方法及びその方法により作製された計算機合成ホログラム - Google Patents
計算機合成ホログラムの作製方法及びその方法により作製された計算機合成ホログラム Download PDFInfo
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- JP5170436B2 JP5170436B2 JP2008287309A JP2008287309A JP5170436B2 JP 5170436 B2 JP5170436 B2 JP 5170436B2 JP 2008287309 A JP2008287309 A JP 2008287309A JP 2008287309 A JP2008287309 A JP 2008287309A JP 5170436 B2 JP5170436 B2 JP 5170436B2
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- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 238000000034 method Methods 0.000 title description 20
- 238000003892 spreading Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 14
- 238000005286 illumination Methods 0.000 description 14
- 230000014509 gene expression Effects 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- NCGICGYLBXGBGN-UHFFFAOYSA-N 3-morpholin-4-yl-1-oxa-3-azonia-2-azanidacyclopent-3-en-5-imine;hydrochloride Chemical compound Cl.[N-]1OC(=N)C=[N+]1N1CCOCC1 NCGICGYLBXGBGN-UHFFFAOYSA-N 0.000 description 2
- 201000009310 astigmatism Diseases 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 241000050617 Papilio paris Species 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
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- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/328—Diffraction gratings; Holograms
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/04—Processes or apparatus for producing holograms
- G03H1/08—Synthesising holograms, i.e. holograms synthesized from objects or objects from holograms
- G03H1/0808—Methods of numerical synthesis, e.g. coherent ray tracing [CRT], diffraction specific
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/10—Scanning systems
- G02B26/106—Scanning systems having diffraction gratings as scanning elements, e.g. holographic scanners
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/04—Processes or apparatus for producing holograms
- G03H1/08—Synthesising holograms, i.e. holograms synthesized from objects or objects from holograms
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/04—Processes or apparatus for producing holograms
- G03H1/08—Synthesising holograms, i.e. holograms synthesized from objects or objects from holograms
- G03H1/0841—Encoding method mapping the synthesized field into a restricted set of values representative of the modulator parameters, e.g. detour phase coding
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/0005—Adaptation of holography to specific applications
- G03H1/0011—Adaptation of holography to specific applications for security or authentication
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
- G03H1/024—Hologram nature or properties
- G03H1/0244—Surface relief holograms
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/04—Processes or apparatus for producing holograms
- G03H1/08—Synthesising holograms, i.e. holograms synthesized from objects or objects from holograms
- G03H1/0841—Encoding method mapping the synthesized field into a restricted set of values representative of the modulator parameters, e.g. detour phase coding
- G03H2001/0858—Cell encoding wherein each computed values is represented by at least two pixels of the modulator, e.g. detour phase coding
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2210/00—Object characteristics
- G03H2210/40—Synthetic representation, i.e. digital or optical object decomposition
- G03H2210/45—Representation of the decomposed object
- G03H2210/452—Representation of the decomposed object into points
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2240/00—Hologram nature or properties
- G03H2240/20—Details of physical variations exhibited in the hologram
- G03H2240/40—Dynamic of the variations
- G03H2240/41—Binary
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2240/00—Hologram nature or properties
- G03H2240/20—Details of physical variations exhibited in the hologram
- G03H2240/40—Dynamic of the variations
- G03H2240/42—Discrete level
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Description
θRmin<θBmax ・・・(1)
ここで、回折角などの角度θは、ZY平面内でZ方向を0度として、反時計回りに正の角度とし、その取りうる範囲は−π/2<θ<π/2とする。
1/f=λ/(sinθout−sinθin)
f:CGHのY方向の空間周波数
λ:波長
θin:入射光の入射角度
θout:回折光の出射角度
を用いると、入射光の入射角度をθLとして、
θRmin=sin-1(fmin・λR+sinθL)
θBmax=sin-1(fmax・λB+sinθL)
となるため、CGH原版1の各単位領域Bmを白色で観察可能な位置が存在するには、θRminとθBmaxを条件式(1)に代入し、以下の条件式(2)を満足させ、さらに、観察位置でCGH原版1の各単位領域Bmを白色で観察するためには、θBmaxを与える矢印とθRminを与える矢印を延長した交点をWとし、交点Wから目Eに向かう角度をθEとしたとき、以下の条件式(3)を満足すればよい。
fmin・λR<fmax・λB ・・・(2)
θRmin<θE<θBmax ・・・(3)
2…再生照明光
3…回折光
Claims (4)
- 計算機を用いた演算により所定の記録面上に振幅情報と位相情報を記録してなる計算機合成ホログラムの作製方法において、
前記計算機合成ホログラムは、
第1方向と、前記第1方向に直交する第2方向に対して、
前記第1方向のみの視差を有し、
前記第2方向に所定の幅を有する各単位領域を有し、
前記各単位領域内に、一方から他方へ徐々に変化し、前記第2方向に異なる凹凸パタ ーンの空間周波数の回折パターンが作製され、
記録物体上に設定した点光源から前記第1方向に広がり、
前記点光源と異なる位置から前記第2方向に広がる物体光を用いて記録される
ことを特徴とする計算機合成ホログラムの作製方法。 - 前記回折パターンは、干渉縞からなることを特徴とする請求項1に記載の計算機合成ホログラムの作製方法。
- 前記回折パターンは、位相と振幅を変調するパターンからなることを特徴とする請求項 1に記載の計算機合成ホログラムの作製方法。
- 請求項1乃至請求項3のいずれかに記載の計算機合成ホログラムの作製方法によって作製された計算機合成ホログラム。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008287309A JP5170436B2 (ja) | 2008-01-22 | 2008-11-10 | 計算機合成ホログラムの作製方法及びその方法により作製された計算機合成ホログラム |
US12/357,044 US8339693B2 (en) | 2008-01-22 | 2009-01-21 | Fabrication process for computer-generated holograms, computer-generated hologram fabricated by that process, and computer-generated hologram |
GB0901039.8A GB2456668B (en) | 2008-01-22 | 2009-01-22 | Fabrication process for computer-generated holograms, computer-generated hologram fabricated by that process, and computer-generated hologram |
CN 200910118725 CN101520637B (zh) | 2008-01-22 | 2009-01-22 | 计算机合成全息图的制作方法以及记录介质 |
Applications Claiming Priority (3)
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JP2008011279 | 2008-01-22 | ||
JP2008011279 | 2008-01-22 | ||
JP2008287309A JP5170436B2 (ja) | 2008-01-22 | 2008-11-10 | 計算機合成ホログラムの作製方法及びその方法により作製された計算機合成ホログラム |
Related Child Applications (1)
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JP2012166111A Division JP5257640B2 (ja) | 2008-01-22 | 2012-07-26 | 計算機合成ホログラムの作製方法及びその方法により作製された計算機合成ホログラム |
Publications (2)
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JP2009199060A JP2009199060A (ja) | 2009-09-03 |
JP5170436B2 true JP5170436B2 (ja) | 2013-03-27 |
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JP2008287309A Expired - Fee Related JP5170436B2 (ja) | 2008-01-22 | 2008-11-10 | 計算機合成ホログラムの作製方法及びその方法により作製された計算機合成ホログラム |
Country Status (3)
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US (1) | US8339693B2 (ja) |
JP (1) | JP5170436B2 (ja) |
GB (1) | GB2456668B (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5516957B2 (ja) * | 2010-03-05 | 2014-06-11 | 独立行政法人情報通信研究機構 | ホログラム生成装置およびその方法、プログラム |
EP2629156B1 (en) * | 2012-01-27 | 2024-04-17 | Samsung Electronics Co., Ltd. | Image processing apparatus and method |
US9915920B2 (en) | 2014-02-18 | 2018-03-13 | Empire Technology Development Llc | Holographic image generation |
WO2017209113A1 (ja) | 2016-06-03 | 2017-12-07 | 凸版印刷株式会社 | 光学フィルムおよび表示体 |
Family Cites Families (14)
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CH659433A5 (de) | 1982-10-04 | 1987-01-30 | Landis & Gyr Ag | Dokument mit einem beugungsoptischen sicherheitselement. |
JPH075797A (ja) * | 1993-06-18 | 1995-01-10 | Sony Corp | 計算機ホログラム記録装置及び再生装置 |
JP3810917B2 (ja) * | 1998-01-20 | 2006-08-16 | 大日本印刷株式会社 | 計算機ホログラムおよびその作成方法 |
JP3708349B2 (ja) | 1999-01-25 | 2005-10-19 | 大日本印刷株式会社 | 計算機ホログラムおよびその作成方法 |
JP3892619B2 (ja) | 1999-06-29 | 2007-03-14 | 大日本印刷株式会社 | 計算機ホログラムおよびその作成方法 |
GB0016354D0 (en) | 2000-07-03 | 2000-08-23 | Optaglio Ltd | Optical security device |
JP4545297B2 (ja) * | 2000-09-01 | 2010-09-15 | 大日本印刷株式会社 | 光学素子およびその製造方法 |
AU2002361857A1 (en) | 2001-12-19 | 2003-07-09 | Actuality Systems, Inc. | A radiation conditioning system |
JP4582616B2 (ja) | 2003-02-12 | 2010-11-17 | 大日本印刷株式会社 | 計算機合成ホログラムの作成方法 |
JP4316916B2 (ja) | 2003-04-04 | 2009-08-19 | 大日本印刷株式会社 | 計算機合成ホログラム |
US6975765B2 (en) | 2003-05-06 | 2005-12-13 | New Light Industries, Ltd. | Optically variable form birefringent structure and method and system and method for reading same |
JP4504037B2 (ja) | 2004-02-02 | 2010-07-14 | 大日本印刷株式会社 | 光学素子 |
JP4905672B2 (ja) * | 2005-12-13 | 2012-03-28 | 大日本印刷株式会社 | 画面切替型ホログラム作製方法及びその方法により作製された画面切替型ホログラム |
JP4844249B2 (ja) * | 2006-06-14 | 2011-12-28 | 大日本印刷株式会社 | ホログラム記録媒体の製造方法および製造装置 |
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- 2008-11-10 JP JP2008287309A patent/JP5170436B2/ja not_active Expired - Fee Related
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2009
- 2009-01-21 US US12/357,044 patent/US8339693B2/en active Active
- 2009-01-22 GB GB0901039.8A patent/GB2456668B/en active Active
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Publication number | Publication date |
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US20090185246A1 (en) | 2009-07-23 |
US8339693B2 (en) | 2012-12-25 |
JP2009199060A (ja) | 2009-09-03 |
GB0901039D0 (en) | 2009-03-11 |
GB2456668B (en) | 2013-02-27 |
GB2456668A (en) | 2009-07-29 |
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