WO2006011218A1 - フレネル光学素子、表示スクリーン及び投写型表示装置 - Google Patents
フレネル光学素子、表示スクリーン及び投写型表示装置 Download PDFInfo
- Publication number
- WO2006011218A1 WO2006011218A1 PCT/JP2004/010850 JP2004010850W WO2006011218A1 WO 2006011218 A1 WO2006011218 A1 WO 2006011218A1 JP 2004010850 W JP2004010850 W JP 2004010850W WO 2006011218 A1 WO2006011218 A1 WO 2006011218A1
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- Prior art keywords
- light
- optical element
- fresnel
- display screen
- fresnel optical
- Prior art date
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
- G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
-
- 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
- G03B21/10—Projectors with built-in or built-on screen
-
- 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
- G03B21/602—Lenticular screens
-
- 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
- G03B21/625—Lenticular translucent screens
Definitions
- the present invention relates to a Fresnel optical element that emits light emitted from a projector toward an observer, a display screen in which the Fresnel optical element is incorporated, a light emitting body such as a projector, and a projection type that has a display screen force. And a display device.
- a conventional display screen is formed with a plurality of Fresnel prisms in which an incident surface that receives light emitted from a light emitter (for example, a projector) installed on an observer side forms a refractive surface. It is composed of a Fresnel optical element and a reflecting mirror that reflects the light refracted by the refracting surface and emits the reflected light to the observer side through the refracting surface of the Fresnel prism (for example, Patent Literature (See 1).
- Patent Document 1 Japanese Patent Application Laid-Open No. 59-3425 (page 3, FIG. 9)
- the conventional display screen is configured as described above, if the projector is installed on the observer side (substantially in front of the display screen), the light refracted by the incident surface of the Fresnel prism is reflected by the reflector. Then, it is emitted to the observer side.
- the Fresnel prism that forms the Fresnel optical element is used only to refract the light beam emitted from the projector and the light beam reflected by the reflecting mirror, and is therefore emitted from the projector.
- the incident angle of the light beam is steep and the light beam is obliquely irradiated, there is a problem that the light beam cannot be emitted to the observer side.
- the present invention has been made to solve the above-described problems, and provides a display screen and a projection display device that can emit light to the observer side even when the light is obliquely irradiated. With the goal.
- Another object of the present invention is to obtain a Fresnel optical element incorporated in a display screen that can emit light to the observer side even when the light is obliquely irradiated.
- the surface of the base is opposite to the reflecting surface of the Fresnel optical element.
- Each Fresnel prism has a light reflecting function that reflects the emitted light or a light diffusing function that diffuses the light reflected by the reflecting surface of the Fresnel optical element, and a transmitting surface that transmits the light reflected or diffused by the surface of the substrate. It is formed between.
- FIG. 1 is a schematic diagram showing a projection display apparatus according to Embodiment 1 of the present invention.
- FIG. 2 is a perspective view showing a projection display apparatus according to Embodiment 1 of the present invention.
- FIG. 3 is a block diagram showing a display screen according to Embodiment 1 of the present invention.
- FIG. 4 is a configuration diagram showing a projection display apparatus according to Embodiment 1 of the present invention.
- FIG. 5 is a block diagram showing a light transmission type screen.
- FIG. 6 is an enlarged view of the screen portion of FIG.
- FIG. 7 is an enlarged view of the prism portion of FIG.
- FIG. 8 is an enlarged view showing a screen in which a portion of the surface that does not contribute to the signal light optical path is formed in parallel with the base light diffusing element.
- FIG. 9 is a configuration diagram showing a light transmissive screen.
- FIG. 10 is a configuration diagram showing a display screen according to Embodiment 2 of the present invention.
- FIG. 11 is a configuration diagram showing a display screen according to Embodiment 3 of the present invention.
- FIG. 12 is an explanatory diagram showing emission of unnecessary light.
- FIG. 13 is a block diagram showing a display screen according to Embodiment 4 of the present invention.
- FIG. 14 is a configuration diagram showing a display screen according to Embodiment 5 of the present invention.
- FIG. 15 is a block diagram showing a display screen according to Embodiment 6 of the present invention.
- FIG. 16 is a structural diagram showing a display screen according to Embodiment 7 of the present invention.
- FIG. 17 is a perspective view showing a projection display apparatus according to Embodiment 8 of the present invention.
- FIG. 18 is a block diagram showing a projection display apparatus according to Embodiment 9 of the present invention.
- FIG. 19 is a block diagram showing a projection display apparatus according to Embodiment 9 of the present invention.
- FIG. 20 is a block diagram showing a projection display apparatus according to Embodiment 9 of the present invention.
- FIG. 21 is a block diagram showing a projection display apparatus according to Embodiment 9 of the present invention.
- FIG. 22 is a block diagram showing a projection display apparatus according to Embodiment 9 of the present invention.
- FIG. 23 is a structural diagram showing a display screen according to Embodiment 10 of the present invention.
- FIG. 24 is a block diagram showing a display screen according to Embodiment 11 of the present invention.
- FIG. 25 is a perspective view showing a projection display apparatus according to Embodiment 12 of the present invention.
- FIG. 26 is a structural diagram showing a display screen according to the twelfth embodiment of the present invention.
- FIG. 1 is a schematic view showing a projection display apparatus according to Embodiment 1 of the present invention
- FIG. 2 is a perspective view showing the projection display apparatus according to Embodiment 1 of the present invention.
- a projector 1 which is a light emitter irradiates a Fresnel optical element 2 with light rays for image projection.
- the Fresnel optical element 2 includes a plurality of Fresnel prisms each having a refracting surface that refracts a light beam emitted from the projector 1 and a reflecting surface that reflects a light beam refracted by the refracting surface.
- a Fresnel prism of the Fresnel optical element 2 is two-dimensionally arranged on the base 3.
- FIG. 3 is a block diagram showing a display screen according to Embodiment 1 of the present invention.
- a refracting surface 11 which is an incident surface of a Fresnel prism forming the Fresnel optical element 2 refracts a light beam irradiated from the projector 1.
- the reflecting surface 12 of the Fresnel prism reflects the light refracted by the refracting surface 11.
- the surface 13 of the substrate 3 has a light beam reflecting function for reflecting the light beam reflected by the reflecting surface 12 of the Fresnel prism.
- the transmission surface 14 of the Fresnel optical element 2 is formed between the Fresnel prisms and transmits the light beam reflected by the surface 13 of the substrate 3.
- the display screen of the first embodiment is a light reflection type screen. Before describing the light reflection type screen, the light transmission type screen will be described.
- FIG. 5 is a block diagram showing a light transmission type screen.
- the light transmissive screen has a refracting surface 22 that refracts the light emitted from the projector 21 and a reflecting surface 23 that reflects the light refracted by the refracting surface 22, and a reflecting surface 23 that reflects the light. And a base having a light diffusing element 24 for diffusing the emitted light.
- FIG. 6 is an enlarged view of the screen portion of FIG. 5
- FIG. 7 is an enlarged view of the prism portion of FIG.
- the refractive surface 22 (in FIG. 1 )
- the incident light beam is refracted by the refractive index difference and is emitted at an angle of ⁇ .
- the emission angle ⁇ is expressed by the following equation (2).
- triangle ABC is one prism unit and the pitch is m
- the parts of triangle ABC that do not contribute to the incident ray from plane AC and plane AB are plane IB and plane HC.
- the root part (surface HCK) of the Fresnel prism does not contribute to the signal light path.
- the base portion (surface HCK) of the Fresnel prism is not formed, and the surface 25 of the portion that does not contribute to the signal light optical path is formed to be parallel to the base light diffusion element 24 as shown in FIG. May be.
- the refractive surface 22 is the surface AL
- the reflective surface 23 is the surface IA
- the surface 25 is the surface LK.
- the incident angle is 70 degrees with respect to the display screen
- the similarity reduction ratio is 1 ⁇ 0.2.
- the flat part becomes larger.
- the surface 13 is provided with a base 3 having a light reflecting function. In this way, it becomes a light-reflective screen and operates under the same principle.
- the light beam emitted from the projector 1 is refracted by the refracting surface 11 of the Fresnel prism, and the light beam refracted by the refracting surface 11 1 is reflected by the reflecting surface 12 of the Fresnel prism.
- the screen is the same as the light transmission screen.
- the light beam reflected by the reflecting surface 12 is reflected by the surface 13 of the substrate 3, and the light beam reflected by the surface 13 of the substrate 3 is transmitted through the transmitting surface 14 and emitted to the observer side.
- this is applied to a projector, it is as shown in FIG.
- the light beam with the incident angle ⁇ reflected by the reflecting surface 12 faces upward from approximately horizontal
- the incident light ⁇ reflected by the plane of incidence 12 is placed below the horizontal (in either case
- the incident angle ⁇ is emitted from the lower transmission surface 14 and the incident angle
- the surface 13 of the substrate 3 has a light reflection function for reflecting the light beam reflected by the reflecting surface 12 of the Fresnel optical element 2, and the substrate 3 Since the transmission surface 14 for transmitting the light beam reflected by the surface 13 is formed between the Fresnel prisms, the light beam can be emitted to the observer side even when the light beam is obliquely irradiated.
- the first embodiment it is possible to divert the light transmission type screen to the light reflection type screen, and the cost can be reduced by sharing the parts.
- the surface 13 of the substrate 3 is provided with a light beam reflecting function for reflecting the light beam reflected by the reflecting surface 12 of the Fresnel optical element 2, but FIG. As shown in Fig. 3, the surface 13 of the substrate 3 may have a light diffusing function for diffusing the light reflected by the reflecting surface 12 of the Fresnel optical element.
- the surface 13 of the substrate 3 may have both a light reflection function and a light diffusion function.
- the surface 13 of the substrate 3 may be a complete diffusion surface or a bead screen.
- the surface 13 of the substrate 3 is configured to have a light diffusing function for diffusing the light reflected by the reflecting surface 12 of the Fresnel optical element 2.
- the surface 13 of the substrate 3 is reflected by the reflecting surface 12 of the Fresnel optical element 2.
- the transmissive surface 14 of the Fresnel optical element 2 may have a light diffusing function for diffusing the light. Good.
- a paint having a light diffusing function is applied to the transmission surface 14 of the Fresnel optical element 2, or
- the light transmitting through the transmission surface 14 of the Fresnel optical element 2 may be spread by roughening the transmission surface 14 of the Fresnel optical element 2.
- the transmission surface 1 of the Fresnel optical element 2 is used.
- Since 4 is configured to have a light diffusing function for diffusing light, it has the effect of expanding the field of view through which the observer can observe the image.
- a part of the light emitted from the projector 1 may be reflected by the refractive surface 11 as shown in FIG.
- the light beam reflected by the refracting surface 11 is incident on the adjacent Fresnel prism, then reflected by the refracting surface 11 of another Fresnel prism, and further reflected by the surface 13 of the substrate 3 to be observed as unnecessary light. May be emitted to the side.
- the refracting surface 11 of the Fresnel prism is blocked by other Fresnel prisms.
- Non-incident surface 15 where the light beam is not directly incident from is the surface of the base 3
- the angle ⁇ with respect to the reflecting surface 12 (corresponding to the transmitting surface that transmits the light reflected by 3) is
- the prism tip angle ⁇ is larger.
- the light beam reflected without being refracted by the refracting surface 11 is not reflected by the refracting surface 11 of another Fresnel prism, and the light beam is emitted as unnecessary light in the viewing direction of the observer. There is an effect that can be avoided.
- the projection display device equipped with the Fresnel optical element 2 has an effect of preventing the display of a ghost image.
- non-incident surface 15 that does not directly receive light from the projector 1 may have a light diffusing function for diffusing the light.
- FIG. 14 is a block diagram showing a display screen according to Embodiment 5 of the present invention.
- the same reference numerals as those in FIG. 1 are identical to FIG. 14 and the same reference numerals as those in FIG. 14;
- the lens unit 5 has a function of controlling the spread of light reflected or diffused by the surface 13 of the substrate 3.
- the lens unit 5 is a one-dimensional lens (kamaboko-shaped lens) whose cross-sectional shape is a circle, ellipse, or aspherical surface in the vertical or horizontal direction, or a lens with different curvatures in two dimensions. Use a microlens array, etc.
- a lenticular lens or the like is used.
- FIG. 15 is a block diagram showing a display screen according to Embodiment 6 of the present invention.
- the surface 16 of the substrate 3 has a light reflection function and a light diffusion function at the focal point 16a of the light beam, but has an external light absorption function (for example, a black stripe) that absorbs outside light at other than the focal point 16a of the light beam. Yes.
- the surface 16 of the substrate 3 has a light reflecting function and a light diffusing function at the focal point 16a of the light beam, the light beam is reflected or diffused as in the fifth embodiment.
- the light beam emitted from the projector 1 does not irradiate any position other than the focal position 16a due to the action of the lens unit 5, but external light or the like can be radiated to any position other than the focal position 16a. There are s . However, since the surface 16 of the substrate 3 has an external light absorption function other than the focal position 16a of the light beam, it absorbs the external light.
- the outside light absorbing function for absorbing outside light is provided except for the focal point position 16a of the light beam, the effect of increasing the contrast can be obtained. Play.
- the force that uses only the vicinity of the focal point of the lens portion 5 as an opening portion excluding the light absorption function increases the width of the opening portion, and as in the lens portion 5 in FIG.
- the light path of the light beam may be changed at each incident position so that the outgoing light beam has a spread.
- the part that does not depend on the optical path of the signal light is the part surrounded by the triangle HCK, and if the plane PK, LK, HK, etc. can be freely formed in this part, the inclination of the transmission surface 17 Can be changed.
- the Fresnel optical element 2 is formed, and the tilting force of the Fresnel prism is varied depending on the position where the Fresnel prism is arranged. As a result, the amount of light emitted toward the observer can be increased.
- FIG. 17 is a perspective view showing a projection display apparatus according to Embodiment 8 of the present invention.
- a Fresnel optical element 2 is concentrically arranged on the base 3, and an edge 6 is formed on the outer periphery of the Fresnel optical element 2.
- the vertical adjustment mechanism 8 serving as a position adjusting means moves the display screen up and down to adjust the irradiation position of the light beam on the Fresnel optical element 2.
- the edge 6 is formed on the outer periphery of the Fresnel optical element 2, and the display area 7 of the image projected by the projector 1 coincides with the inside of the edge 6.
- the edge 6 is formed on the outer periphery of the Fresnel optical element 2, even when the image by the projector 1 is distorted, the distortion in the display area 7 is hidden by the edge 6 and the appearance is improved.
- the Fresnel optical element 2 is arranged concentrically. However, the angle of the refracting surface 11 is close to the center of the concentric circle according to the incident angle ⁇ .
- the Fresnel optical element 2 may be changed so that the far side is larger than the far side.
- the Fresnel optical element 2 is arranged concentrically, but the prism similar reduction ratio 1 is in the concentric circle according to the incident angle ⁇ .
- the Fresnel optical element 2 may be changed so that the far side is smaller than the near side.
- the Fresnel optical element 2 is arranged concentrically.
- the Fresnel optical element 2 is not necessarily arranged concentrically, but is arranged linearly. May be.
- an image with high resolution can be displayed if the pitch of the Fresnel optical element 2 is made finer than the pixels of the screen.
- FIG. 18 is a block diagram showing a projection display apparatus according to Embodiment 9 of the present invention.
- the surface 18 of the substrate 3 has a light reflecting function or a light diffusing function for reflecting or diffusing the light reflected by the reflecting surface 12 of the Fresnel optical element 2 and a light transmitting function for transmitting a part of the light.
- the surface 18 of the substrate 3 is provided with a light reflection function or a light diffusion function for reflecting or diffusing the light beam reflected by the reflection surface 12 of the Fresnel optical element 2, so that it is reflected by the reflection surface 12 of the Fresnel optical element 2.
- the reflected light beam is reflected by the surface 18 of the base 3 and is emitted toward the observer on the right side in the figure as in the first embodiment.
- the surface 18 of the substrate 3 has a light transmission function that transmits a part of the light beam reflected by the reflection surface 12 of the Fresnel optical element 2, so that the reflection surface 12 of the Fresnel optical element 2 is opposite.
- the emitted light passes through the surface 18 of the base 3 and is emitted toward the left observer in the figure.
- a light diffusing function and a light transmitting function can be realized at the same time by disposing, for example, a semi-transmissive diffusing plate on the surface 18 of the substrate 3.
- a diffusion plate (polarizing plate) having a polarization function is disposed as the base 3 so that the left and right images emitted toward the left observer are reversed.
- the polarization switching element la of the projector 1 switches the polarization at high speed, and the image forming unit (not shown) of the projector 1 inverts the left and right of the image in synchronization with the switching of the polarization, so that the right side of the image is reversed. Make the image seen by the observer and the left observer the same.
- the projector 1 is installed on the lower side of the display screen. However, as shown in FIG. 20, the projector 1 is installed on the upper side of the display screen. You may do it.
- an optically transparent transparent member 19 having a high flatness, such as glass, is combined.
- the lens unit 5 is inserted between the base 3 and the transparent member 19. However, the base 3 is inserted between the lens unit 5 and the transparent member 19, and it is okay.
- the mirror 20 is inserted in the middle of the optical path so that the optical path is folded. It may be.
- the mirror 20 may be installed at an angle.
- the projector 1 may be positioned on the left side of the display screen as shown in FIG.
- the tip of the Fresnel prism has a pointed shape. It is possible that fraud will occur in the machining of the mold, or the tip will be rubbed and scraped off.
- the tip of the Fresnel prism is cut out as shown in FIG. 23, thereby forming a new surface 31 and forming the Fresnel prism in a trapezoidal shape.
- the light beam reflected by the surface 13 of the substrate 3 is emitted from the transmission surface 14, but the light beam reflected by the surface 13 of the substrate 3 can be emitted from the new surface 31.
- the transmission surface 14 and the new surface 31 have different surface inclinations, the light distribution characteristics of the luminous flux seen by the observer can be expanded.
- the force showing the Fresnel optical element 2 in which a plurality of Fresnel prisms composed of the refracting surface 11 and the reflecting surface 12 are formed as shown in FIG. 24, the surface on which the Fresnel prism is formed
- An ultrafine antireflection structure 33 may be added to the opposite surface.
- the effective refractive index changes continuously when it has a periodic structure (eg, 0.2 micron) whose period is smaller than the wavelength of light (eg, 0.5 micron). ing. Therefore, if the ultrafine non-reflective structure 33 is added to the surface opposite to the surface where the Fresnel prism is formed, for example, with an adhesive 32, the refractive index from the Fresnel optical element 2 to the air is continuously changed. Therefore, the reflected light can be reduced. If such a Fresnel optical element 2 is applied to, for example, the display screen of the ninth embodiment, the luminance of the image seen by the left observer can be increased.
- a periodic structure eg, 0.2 micron
- the wavelength of light eg, 0.5 micron
- the period of the Fresnel prism is about 100 microns
- the prism portion that is the optical path of the signal light is about 30 microns
- the period of the ultrafine non-reflective structure 33 is about 0.2 microns. Needless to say, this is only an example, and other periods may be set.
- the adhesive Fresnel optical element 2 to which the ultrafine antireflection structure 33 is added and the ultrafine antireflection structure 33 may be integrally formed using the adhesive 32.
- the liquid crystal display that displays an image on the surface 18 of the power base, which shows that the surface 18 of the base has a light transmission function so that images can be seen on both sides of the display screen, It may be possible to install another image display device such as a plasma display panel.
- the rate 1 is 0.2, and the remaining 0.8, or 80%, is the flat part.
- the light output from the liquid crystal display is the force S that 20% of the light is emitted to the projector 1 side, and 80% of the light passes through the front.
- the liquid crystal display can be seen at a relatively high brightness.
- the force shown for installing a liquid crystal display as an image display means is not limited to this, and may be a signboard, for example.
- the image of the image display means on the back side of the screen can be viewed, and when the image display means is not used, the image of the projector can be viewed.
- the projector has a display screen. It is suitable for use in a projection display device that is placed on the front side (observer side) of the display screen.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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JP2006527749A JP4149493B2 (ja) | 2004-07-29 | 2004-07-29 | フレネル光学素子、表示スクリーン及び投写型表示装置 |
PCT/JP2004/010850 WO2006011218A1 (ja) | 2004-07-29 | 2004-07-29 | フレネル光学素子、表示スクリーン及び投写型表示装置 |
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PCT/JP2004/010850 WO2006011218A1 (ja) | 2004-07-29 | 2004-07-29 | フレネル光学素子、表示スクリーン及び投写型表示装置 |
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008040038A (ja) * | 2006-08-04 | 2008-02-21 | Olympus Corp | 照度均一化光学素子 |
JP2008203597A (ja) * | 2007-02-21 | 2008-09-04 | Seiko Epson Corp | スクリーン及びプロジェクションシステム |
JP2008299219A (ja) * | 2007-06-01 | 2008-12-11 | Ricoh Co Ltd | 反射型スクリーン、表示システム |
JP2011090138A (ja) * | 2009-10-22 | 2011-05-06 | Seiko Epson Corp | スクリーン |
JP2012252269A (ja) * | 2011-06-06 | 2012-12-20 | Dainippon Printing Co Ltd | 反射型スクリーン、及び反射型投射システム |
JP2013213882A (ja) * | 2012-03-31 | 2013-10-17 | Dainippon Printing Co Ltd | 反射スクリーン、映像表示システム |
JP2014071278A (ja) * | 2012-09-28 | 2014-04-21 | Dainippon Printing Co Ltd | 反射スクリーン、映像表示システム |
JP2014077883A (ja) * | 2012-10-10 | 2014-05-01 | Dainippon Printing Co Ltd | 反射スクリーン、映像表示システム |
JP2016114628A (ja) * | 2014-12-11 | 2016-06-23 | 大日本印刷株式会社 | 反射スクリーン、映像表示システム |
DE102013103608B4 (de) * | 2012-05-04 | 2020-08-20 | Young Optics Inc. | Projektionssystem |
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JP2002019385A (ja) * | 2000-07-06 | 2002-01-23 | Arisawa Optic Co Ltd | 投写スクリーン兼用白板 |
JP2002023271A (ja) * | 2000-07-13 | 2002-01-23 | Victor Co Of Japan Ltd | プロジェクタ用スクリーン、ホログラムの作製方法 |
JP2004078024A (ja) * | 2002-08-21 | 2004-03-11 | Nec Viewtechnology Ltd | 反射型スクリーン |
JP2004177427A (ja) * | 2002-11-22 | 2004-06-24 | Arisawa Mfg Co Ltd | 反射型スクリーン装置 |
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JP2008040038A (ja) * | 2006-08-04 | 2008-02-21 | Olympus Corp | 照度均一化光学素子 |
JP2008203597A (ja) * | 2007-02-21 | 2008-09-04 | Seiko Epson Corp | スクリーン及びプロジェクションシステム |
JP2008299219A (ja) * | 2007-06-01 | 2008-12-11 | Ricoh Co Ltd | 反射型スクリーン、表示システム |
JP2011090138A (ja) * | 2009-10-22 | 2011-05-06 | Seiko Epson Corp | スクリーン |
JP2012252269A (ja) * | 2011-06-06 | 2012-12-20 | Dainippon Printing Co Ltd | 反射型スクリーン、及び反射型投射システム |
JP2013213882A (ja) * | 2012-03-31 | 2013-10-17 | Dainippon Printing Co Ltd | 反射スクリーン、映像表示システム |
DE102013103608B4 (de) * | 2012-05-04 | 2020-08-20 | Young Optics Inc. | Projektionssystem |
JP2014071278A (ja) * | 2012-09-28 | 2014-04-21 | Dainippon Printing Co Ltd | 反射スクリーン、映像表示システム |
JP2014077883A (ja) * | 2012-10-10 | 2014-05-01 | Dainippon Printing Co Ltd | 反射スクリーン、映像表示システム |
JP2016114628A (ja) * | 2014-12-11 | 2016-06-23 | 大日本印刷株式会社 | 反射スクリーン、映像表示システム |
Also Published As
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JPWO2006011218A1 (ja) | 2008-05-01 |
JP4149493B2 (ja) | 2008-09-10 |
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