WO2006011303A1 - ホログラムスクリーン - Google Patents
ホログラムスクリーン Download PDFInfo
- Publication number
- WO2006011303A1 WO2006011303A1 PCT/JP2005/010336 JP2005010336W WO2006011303A1 WO 2006011303 A1 WO2006011303 A1 WO 2006011303A1 JP 2005010336 W JP2005010336 W JP 2005010336W WO 2006011303 A1 WO2006011303 A1 WO 2006011303A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- screen
- light
- refractive index
- hologram
- dlc film
- Prior art date
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 3
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 238000010894 electron beam technology Methods 0.000 claims description 6
- 238000005268 plasma chemical vapour deposition Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000005469 synchrotron radiation Effects 0.000 claims description 5
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 239000010931 gold Substances 0.000 description 27
- 229910052737 gold Inorganic materials 0.000 description 26
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 25
- 239000000758 substrate Substances 0.000 description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 239000004973 liquid crystal related substance Substances 0.000 description 7
- 108010010803 Gelatin Proteins 0.000 description 6
- 229920000159 gelatin Polymers 0.000 description 6
- 239000008273 gelatin Substances 0.000 description 6
- 235000019322 gelatine Nutrition 0.000 description 6
- 235000011852 gelatine desserts Nutrition 0.000 description 6
- 239000011521 glass Substances 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 6
- 238000010884 ion-beam technique Methods 0.000 description 3
- 230000001678 irradiating effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002343 gold Chemical class 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
- G03B21/62—Translucent screens
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B27/0103—Head-up displays characterised by optical features comprising holographic elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/32—Holograms used as optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0118—Head-up displays characterised by optical features comprising devices for improving the contrast of the display / brillance control visibility
-
- 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
- G03H2001/026—Recording materials or recording processes
- G03H2001/0268—Inorganic recording material, e.g. photorefractive crystal [PRC]
-
- 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
- G03H2240/50—Parameters or numerical values associated with holography, e.g. peel strength
- G03H2240/54—Refractive index
Definitions
- the present invention relates to a screen for displaying characters and images projected from a projector.
- an observer sees an image projected on a screen from a projector and simultaneously sees through an object behind the screen.
- the present invention relates to an improvement of a holographic screen.
- the simplest example of a screen that can have the action of a compiler is a half mirror screen.
- the half mirror reflects a part of the light projected from the projector toward the observer and transmits a part of the light from the object behind the half mirror toward the observer. it can.
- the half mirror screen can reflect only about half or less of the light amount of the projected image, and can transmit only about half or less of the light amount from the object behind.
- the half mirror screen has a problem that the efficiency of using the light projected from the projector is low and the efficiency of using the light from the object behind it is also low.
- FIG. 4 shows an example of use of the hologram screen disclosed in Patent Document 1.
- a hologram screen 31 is pasted on a show window 2 of an automobile sales company.
- the hologram screen 31 is projected with light for displaying character information and video from a projector 41 attached to the ceiling in the showroom. Then, an observer 91 outside the showroom can view the image projected on the hologram screen 31 and at the same time see the display car 92 in the showroom.
- FIG. 5 is a schematic cross-sectional view illustrating the operation of the hologram screen 31 shown in FIG.
- the projector 41 includes a light source 411 such as a halogen lamp, a slide film 412, and a projection lens 413, for example.
- the projector 41 may be a CRT (cathode ray tube) projector or an LC (liquid crystal) projector, and of course,
- the hologram screen 31 is a transmission hologram screen.
- the incident angle and wavelength of the light projected from the projector 41 are set so as to satisfy the diffraction condition of the hologram screen 31.
- the light from the display car 92 in the showroom is not in a relationship that satisfies the diffraction condition of the hologram screen 31. Therefore, the light from the display car 92 can be seen by the observer 91 through the hologram screen 31 as it is, as indicated by the broken arrow in FIG.
- FIG. 6 shows another example using the hologram screen disclosed in Patent Document 1.
- a reflection type hologram screen 32 is pasted on the inner surface of the windshield 2 of the automobile 5.
- an LC projector 42 is placed in the dashboard 51. That Such an LC projector 42 includes, for example, a light source 421, an LCD (Liquid Crystal Display) 422, a mirror 423, and a projection lens 424.
- the light projected from the projector 42 onto the hologram screen 32 is set in a relationship that satisfies the diffraction conditions of the hologram, and as shown by the solid arrow in FIG. Diffracted and reflected in the direction.
- the light from the object in front of the car 5 is not related to the diffraction condition of the hologram screen 32, so that the light passes through the hologram screen 32 as shown by the broken arrow in FIG. Visible to the person 91.
- Patent Document 1 Japanese Patent Laid-Open No. 9-33856
- a conventional hologram screen is manufactured by exposing a dry plate including a photopolymer layer or a dichromated gelatin layer with interference light and incorporating a refractive index modulation structure.
- the hologram screen manufactured using these materials has a problem that its durability is poor. That is, the photopolymer is likely to expand due to heat and immediately cause problems such as a decrease in diffraction efficiency and peeling from the substrate.
- dichromated gelatin has water absorption, and there is a problem of deterioration of the material accompanying it.
- photopolymers and gelatin dichromate also have the problem of deterioration due to prolonged irradiation with sunlight.
- the refractive index change ⁇ due to light irradiation is small, and it is difficult to produce a hologram screen having high diffraction efficiency. That is, with a hologram screen having a low diffraction efficiency, the utilization efficiency of the light projected from the projector onto the screen cannot be increased.
- the main object of the present invention is a large size.
- Another object of the present invention is to provide a hologram screen having high diffraction efficiency and excellent durability by a refractive index modulation structure including a large refractive index change ⁇ .
- the hologram screen according to the present invention includes a diamond 'like' carbon (DLC) film, and the DLC film deflects only the light projected on the screen, such as projector power, toward the viewer and the screen. It has a refractive index modulation structure including a plurality of regions having a relatively high refractive index and a plurality of regions having a relatively low refractive index so as to transmit light from an object behind to the viewer. It is characterized by that.
- DLC diamond 'like' carbon
- the refractive index modulation structure of the DLC film deflects only the light within the selected specific wavelength range. Can be configured.
- the hologram screen can include a three-layer DLC film, the first DLC film deflects only light having a wavelength corresponding to red, and the second DLC film has light having a wavelength corresponding to green. By deflecting only the light, and the third DLC film deflects only the light of the wavelength corresponding to blue, the screen can deflect the full color image projected from the projector towards the viewer .
- the hologram screen may be a transmission type that transmits and deflects light projected from the projector onto the DLC film.
- the hologram screen can be of a reflective type that reflects and deflects the light projected from the projector onto the DLC film.
- the DLC film included in the hologram screen as described above can be preferably formed by plasma CVD. Further, the high refractive index region in the DLC film can be formed by irradiation of any energy beam selected from ultraviolet irradiation, ion irradiation, synchrotron radiation irradiation, and electron beam irradiation.
- the hologram screen according to the present invention is formed using a DLC film, It can have significantly superior durability.
- the DLC film can generate a large refractive index change ⁇ by energy beam irradiation, it is possible to obtain a hologram screen with excellent diffraction efficiency.
- FIG. 1 is a schematic cross-sectional view illustrating a method for producing a DLC hologram screen according to an embodiment of the present invention.
- FIG. 2 is a schematic cross-sectional view illustrating a method for producing a DLC hologram screen according to another embodiment of the present invention.
- FIG. 3 is a schematic cross-sectional view illustrating a method for producing a DLC hologram film according to still another embodiment of the present invention.
- FIG. 4 is a diagram showing an example of a usage form of a transmission hologram screen.
- FIG. 5 is a schematic cross-sectional view illustrating the optical action of the hologram screen in FIG.
- FIG. 6 is a schematic cross-sectional view showing an example of how the reflection hologram screen is used. Explanation of symbols
- the present inventors have confirmed that the refractive index can be increased by irradiating the light-transmitting DLC film with an energy beam.
- a DLC film can be formed on a silicon substrate, a glass substrate, and other various substrates by plasma CVD (rich chemical vapor deposition).
- a translucent DLC film obtained by such plasma CVD usually has a refractive index of about 1.55.
- an energy beam for increasing the refractive index of the DLC film an ion beam, an electron beam, synchrotron radiation (SR) light, ultraviolet (UV) light, or the like can be used.
- SR synchrotron radiation
- UV ultraviolet
- the refractive index can be similarly modulated by implanting ions such as H, Li, B, and C.
- the refractive index can be similarly modulated by irradiation with excimer laser light such as ArF (193 nm), XeCl (308 nm), XeF (351 nm), or Ar laser light (488 nm).
- FIG. 1 a method for producing a hologram screen using a DLC film in an embodiment of the present invention is illustrated in a schematic cross-sectional view.
- a DLC hologram screen can be preferably used in place of the photopolymer or dichromated gelatin hologram screen 31, 32 in FIGS.
- a DLC film 22 is formed on a silica (SiO) glass substrate 21 by plasma CVD, for example. Then, a mask 24 a formed on the silica glass substrate 23 a is overlaid on the DLC film 22.
- a gold (Au) film that can be formed of various materials can be used more preferably. This is because gold is processed with high precision and has excellent energy beam shielding properties, and does not cause problems due to oxidation or corrosion.
- the gold mask 24a can be manufactured, for example, as follows.
- a gold film having a thickness of about 0.5 ⁇ m is deposited on a glass substrate by a well-known sputtering method or EB (electron beam) vapor deposition method, and a resist layer is applied thereon. This resist layer is patterned using stepper exposure. The gold film is patterned by dry etching through the resist pattern. Then, the gold mask pattern is obtained by removing the resist pattern.
- a Ni conductive layer having a thickness of about 50 nm or less is deposited on a glass substrate by sputtering or EB vapor deposition, and a resist pattern is formed thereon.
- a gold mask can be formed by depositing an approximately 0.5 ⁇ m thick gold film on the Ni layer through this resist pattern by electroplating.
- the gold mask formed by any of the above methods has a pattern corresponding to the diffraction grating pattern for the hologram action.
- the DLC film 22 is irradiated with UV light 25 a from above in a state where the gold film mask 24 a is overlaid on the DLC film 22.
- the force in the DLC film 22 that is covered with the gold mask 24a and not irradiated with the UV light 25a does not change the refractive index, and the refractive index n as deposited by plasma CVD is not changed. Is maintained.
- DL the refractive index
- the region not covered with the gold mask 24a and irradiated with the UV light 25a causes a change in the refractive index, and the refractive index is increased to n.
- the glass substrate 23a and the gold mask 24a are removed from the hologram screen 22.
- the hologram screen 22 thus obtained contains a binary refractive index of n and n, and has a two-level refractive index.
- a photopolymer hologram screen can also act as a refractive index modulation type diffraction grating including a low refractive index region and a high refractive index region.
- the refractive index difference ⁇ that can be realized by light irradiation of the photopolymer film is about 0.04 at most, whereas the refractive index difference ⁇ that can be realized by UV light irradiation of the DLC film is Can reach about 0.2. Therefore, the DLC hologram screen 22 of FIG. 1 can achieve much higher diffraction efficiency than the photopolymer hologram film, and can increase the light utilization efficiency.
- FIG. 2 a method for producing a hologram screen using a DLC film in another embodiment of the present invention is illustrated in a schematic cross-sectional view.
- a second gold mask 24b on the silica glass substrate 23a is further overlaid thereon. In that state, UV light irradiation 25b is performed again.
- the second gold mask 22b has an opening for irradiating only the selected region in the region of high refractive index n in the DLC hologram film formed in the process of FIG. Have
- DLC hologram screen 22 has three levels of refractive index modulation: n, n, and n
- Acts as a diffraction grating including.
- a DLC hologram screen including a desired multi-level refractive index modulation is obtained by repeatedly irradiating the DLC film with UV light while sequentially using a mask having a partially modified pattern.
- a multi-level refractive index modulation type diffraction grating can produce higher diffraction efficiency than a two-level refractive index modulation type diffraction grating, so that the light utilization efficiency can be further improved.
- FIG. 3 a method for producing a hologram screen using a DLC film in still another embodiment of the present invention is illustrated in a schematic sectional view.
- a gold mask 34 is formed on the DLC film 22 on a silica glass substrate (not shown).
- This gold mask 34 can also be formed by a method similar to the gold mask 24a in FIG.
- band-shaped gold film 34 has upper surface is formed in a semi-cylindrical surface.
- a semi-cylindrical surface can be formed by, for example, etching or nanoimprint (mold transfer).
- He ions 35 are irradiated onto the DLC film 22 through the gold mask 34 thus formed.
- each band-shaped gold film 34 has a semi-cylindrical upper surface, some He ions can pass through the mask near the side surface of each band-shaped gold film 34, and the transmitted He ions It can penetrate into the DLC film 22.
- the refractive index continuously changes in the vicinity of the interface between the low refractive index region 22a and the high refractive index region 22b.
- the gold mask 34 can be dissolved and removed by immersing it in a cyan etching solution for gold at room temperature for several minutes.
- the diffraction efficiency improves as the number of levels increases.
- the refractive index modulation type diffraction grating in which the refractive index is continuously changed is equivalent to making the refractive index modulation level infinite. That is, the DLC hologram screen obtained in FIG. 3 has a further improved diffraction efficiency compared to the case of FIG. 2, and can further improve the light utilization efficiency.
- the diffraction grating interval should be made relatively large.
- the diffraction grating interval should be made relatively small.
- the diffraction grating generally has wavelength selectivity.
- the refractive index modulation type diffraction grating film by appropriately designing the film thickness, the refractive index difference ⁇ , the diffraction grating interval, etc., the wavelength range in which diffraction can occur, the incident angle, and the angle of the diffraction angle. The range can be adjusted to some extent.
- the adjustable range regarding the diffractable wavelength range, the incident angle, and the angle range of the diffraction angle becomes wider as the maximum refractive index difference ⁇ that can be realized becomes larger.
- the diffraction grating interval is set to a size suitable for the wavelength, and the refractive index difference ⁇ is increased to reduce the film thickness. What should I do? In this case, it is possible to display an image using only light of a specific selected wavelength with high diffraction efficiency, and it is possible to increase the resolution of the image.
- the refractive index difference ⁇ is set to be larger and the film thickness is further reduced, the wavelength range and the incident angle range where diffraction can occur tend to be widened. Therefore, in this case, the diffraction conditions to be satisfied by the projector and the hologram screen are alleviated, and each can be manufactured at low cost, and the relative installation conditions can be simplified.
- the DLC hologram screen according to the present invention since the refractive index difference ⁇ can be set in a wide range, the DLC hologram screen can be designed according to various demands and can be designed. The range is much wider than before.
- a DLC hologram screen having significantly superior durability as compared with the prior art and having excellent diffraction efficiency.
- Such a DLC hologram screen can be used as a store screen in a storefront store as described above, and can also be used as a head-up display complier for automobiles and airplanes. It can also be used as a head mount head-up display complier.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
- Holo Graphy (AREA)
- Overhead Projectors And Projection Screens (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05751138A EP1772772A1 (en) | 2004-07-28 | 2005-06-06 | Hologram screen |
US11/658,597 US20080309997A1 (en) | 2004-07-28 | 2005-06-06 | Hologram Screen |
CA002572998A CA2572998A1 (en) | 2004-07-28 | 2005-06-06 | Hologram screen |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-220271 | 2004-07-28 | ||
JP2004220271A JP4046112B2 (ja) | 2004-07-28 | 2004-07-28 | ホログラムスクリーン |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006011303A1 true WO2006011303A1 (ja) | 2006-02-02 |
Family
ID=35786057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/010336 WO2006011303A1 (ja) | 2004-07-28 | 2005-06-06 | ホログラムスクリーン |
Country Status (8)
Country | Link |
---|---|
US (1) | US20080309997A1 (ja) |
EP (1) | EP1772772A1 (ja) |
JP (1) | JP4046112B2 (ja) |
KR (1) | KR20070046826A (ja) |
CN (1) | CN1989449A (ja) |
CA (1) | CA2572998A1 (ja) |
TW (1) | TW200606570A (ja) |
WO (1) | WO2006011303A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009237351A (ja) * | 2008-03-27 | 2009-10-15 | Toshiba Corp | 反射スクリーン、表示装置及び移動体 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101174550B1 (ko) * | 2010-03-05 | 2012-08-16 | 최해용 | 광고용 양방향 반사 스크린 장치 |
JP5962930B2 (ja) * | 2014-06-03 | 2016-08-03 | 大日本印刷株式会社 | 光透過性反射板、スクリーン、及び投影システム |
WO2016073314A1 (en) * | 2014-11-05 | 2016-05-12 | Nyqamin Dynamics Llc | Overlay display |
JP7401320B2 (ja) | 2020-01-24 | 2023-12-19 | 株式会社村田製作所 | 積層セラミック電子部品 |
JP2021121826A (ja) * | 2020-01-31 | 2021-08-26 | セイコーエプソン株式会社 | 表示モジュールおよび表示装置 |
CN114428446A (zh) * | 2022-01-25 | 2022-05-03 | Tcl通讯科技(成都)有限公司 | 图形全息投影方法、装置、存储介质及终端 |
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JP2000233665A (ja) * | 1999-02-17 | 2000-08-29 | Asahi Glass Co Ltd | 車両用投影型ホログラフィック情報表示装置 |
JP2000321665A (ja) * | 1999-05-10 | 2000-11-24 | Denso Corp | 映像表示システム |
JP2000321674A (ja) * | 1999-05-10 | 2000-11-24 | Victor Co Of Japan Ltd | スクリーンと投射表示システム |
JP2001236002A (ja) * | 1999-12-17 | 2001-08-31 | Japan Science & Technology Corp | ホログラムの製造方法および装置 |
JP2002107832A (ja) * | 2000-09-29 | 2002-04-10 | Hitachi Ltd | 投写型ディスプレイシステム |
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US5210624A (en) * | 1989-09-19 | 1993-05-11 | Fujitsu Limited | Heads-up display |
KR20050053522A (ko) * | 2002-09-19 | 2005-06-08 | 스미토모 덴키 고교 가부시키가이샤 | 회절 광학 소자와 그 형성 방법 |
US6906836B2 (en) * | 2002-10-04 | 2005-06-14 | William Parker | Full color holographic image combiner system |
-
2004
- 2004-07-28 JP JP2004220271A patent/JP4046112B2/ja not_active Expired - Fee Related
-
2005
- 2005-06-06 CA CA002572998A patent/CA2572998A1/en not_active Abandoned
- 2005-06-06 EP EP05751138A patent/EP1772772A1/en not_active Withdrawn
- 2005-06-06 CN CNA2005800241492A patent/CN1989449A/zh active Pending
- 2005-06-06 WO PCT/JP2005/010336 patent/WO2006011303A1/ja active Application Filing
- 2005-06-06 KR KR1020077002054A patent/KR20070046826A/ko not_active Application Discontinuation
- 2005-06-06 US US11/658,597 patent/US20080309997A1/en not_active Abandoned
- 2005-07-11 TW TW094123380A patent/TW200606570A/zh unknown
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JP2000233665A (ja) * | 1999-02-17 | 2000-08-29 | Asahi Glass Co Ltd | 車両用投影型ホログラフィック情報表示装置 |
JP2000321665A (ja) * | 1999-05-10 | 2000-11-24 | Denso Corp | 映像表示システム |
JP2000321674A (ja) * | 1999-05-10 | 2000-11-24 | Victor Co Of Japan Ltd | スクリーンと投射表示システム |
JP2001236002A (ja) * | 1999-12-17 | 2001-08-31 | Japan Science & Technology Corp | ホログラムの製造方法および装置 |
JP2002107832A (ja) * | 2000-09-29 | 2002-04-10 | Hitachi Ltd | 投写型ディスプレイシステム |
JP2002148717A (ja) * | 2000-11-08 | 2002-05-22 | Dainippon Printing Co Ltd | 反射型ホログラムスクリーン及びそれを用いた投影表示装置 |
JP2003248193A (ja) * | 2001-12-20 | 2003-09-05 | Sumitomo Electric Ind Ltd | ファラデー回転子、光アイソレータ、偏光子、およびダイヤモンドライクカーボン薄膜 |
JP2004163892A (ja) * | 2002-09-19 | 2004-06-10 | Sumitomo Electric Ind Ltd | 回折光学素子とその形成方法 |
JP2004191716A (ja) * | 2002-12-12 | 2004-07-08 | Sumitomo Electric Ind Ltd | 光射出面上に回折光学膜を有する発光素子とその製造方法 |
JP2004198454A (ja) * | 2002-12-16 | 2004-07-15 | Sumitomo Electric Ind Ltd | 端部に回折光学膜を有する光ファイバとその製造方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2009237351A (ja) * | 2008-03-27 | 2009-10-15 | Toshiba Corp | 反射スクリーン、表示装置及び移動体 |
Also Published As
Publication number | Publication date |
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EP1772772A1 (en) | 2007-04-11 |
KR20070046826A (ko) | 2007-05-03 |
US20080309997A1 (en) | 2008-12-18 |
JP4046112B2 (ja) | 2008-02-13 |
JP2006039291A (ja) | 2006-02-09 |
TW200606570A (en) | 2006-02-16 |
CA2572998A1 (en) | 2006-02-02 |
CN1989449A (zh) | 2007-06-27 |
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