WO2018179267A1 - Dispositif d'affichage vidéo de type à projection - Google Patents

Dispositif d'affichage vidéo de type à projection Download PDF

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Publication number
WO2018179267A1
WO2018179267A1 PCT/JP2017/013357 JP2017013357W WO2018179267A1 WO 2018179267 A1 WO2018179267 A1 WO 2018179267A1 JP 2017013357 W JP2017013357 W JP 2017013357W WO 2018179267 A1 WO2018179267 A1 WO 2018179267A1
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WO
WIPO (PCT)
Prior art keywords
projection
display device
video display
leg
adjustment mechanism
Prior art date
Application number
PCT/JP2017/013357
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English (en)
Japanese (ja)
Inventor
克行 渡辺
政徳 高治
崇嗣 川端
加藤　修二
Original Assignee
マクセル株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by マクセル株式会社 filed Critical マクセル株式会社
Priority to PCT/JP2017/013357 priority Critical patent/WO2018179267A1/fr
Publication of WO2018179267A1 publication Critical patent/WO2018179267A1/fr

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    • 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
    • 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
    • G03B21/14—Details

Definitions

  • the present invention relates to a projection-type image display device.
  • the projection-type image display device is applied to a large projection television, and for example, as already known in Patent Document 1 below, an image signal from the outside is input and the image is enlarged to display a panel or wall surface.
  • Patent Document 1 an image signal from the outside is input and the image is enlarged to display a panel or wall surface.
  • the apparatus is installed so that the bottom surface of the casing constituting the main body is parallel to the desk surface, so-called horizontal placement, or one side surface of the casing is placed on the desk surface. It is necessary to be able to be installed in various forms such as so-called vertical installation, which is installed in parallel on the top.
  • Patent Document 2 a projector device that facilitates adjustment of a projection angle by providing a support member for rotatably supporting a liquid crystal projector main body is already known.
  • a projection-type image display device in which the installation state can be appropriately set according to the usage state, for example, the horizontal or horizontal usage mode.
  • JP 2003-280091 A Japanese Patent No. 3057778 JP2011-158522A
  • the projection-type image display devices disclosed in the related art including the above-described Patent Document 3 are still insufficient for solving the problem when the device is installed on a desk and projected onto the surface. It was. That is, in the projection-type image display device according to the present invention, particularly when the device is installed on a desk and projects an enlarged image light, it is easily affected by unevenness and slight inclination on the surface of the desk. It was confirmed that a non-optimal screen was displayed.
  • the present invention is a projection-type image display device that requires portability, and appropriately includes the tilted state of the device according to the usage state (for example, the horizontal or horizontal usage mode). It is an object of the present invention to provide a projection-type image display apparatus that can be set in a fine installation state and that is excellent in practical use.
  • the configuration described in the claims is adopted.
  • An optical system including a projection lens for emitting enlarged image light is housed, and the image light emitted from the optical system is enlarged and projected toward a display surface on a part of the upper case of the housing.
  • a projection-type image display device to which means for attaching is attached, and the device can be installed on the bottom surface or one side surface of the housing made of the case.
  • a stand leg is integrated with the case and detachably accommodated, and the stand leg is taken out and the projection type image display is used in a vertical usage form with the one side as a bottom surface.
  • Projection type image display apparatus includes a first adjusting mechanism capable of adjusting the tilt angle of the location is provided.
  • the stand leg may further include a second adjustment mechanism that is housed and capable of adjusting an inclination angle of the device in a horizontal usage mode using the bottom surface of the casing. Furthermore, the stand leg is provided with a third adjustment mechanism that can adjust the height of the projection image display device with respect to the installation surface in a vertically placed usage form with the one side surface as a bottom surface. Also good.
  • a projection-type image excellent in practical use in which a fine installation state including an inclined state of the apparatus can be appropriately set according to a usage state of horizontal installation or horizontal installation.
  • a display device is provided.
  • the image light to be projected is enlarged and projected by a reflection mirror that constitutes a part of the projection optical system. I do.
  • FIG.1 and FIG.2 is a perspective view which shows the external appearance from each different angle
  • the said projection type video display apparatus has the main body 1, the bottom surface, and circumference
  • the lower case 2 (which will be described later in detail) and the upper case 3 installed and fixed on the upper surface thereof are integrally formed with four sides integrally formed and having a substantially rectangular outer shape.
  • the substantially central portion of the upper case 3 which is the upper surface of the projection display apparatus is formed so as to rise in a so-called hill shape (convex portion).
  • the part, that is, the open / close type mirror cover 31 is separated from other parts and attached to the outside so as to be rotatable by a predetermined angle.
  • a reflection mirror (free curved mirror) 32 that is a part of the optical system and is formed in a rotationally asymmetric manner is attached to the inside of the openable mirror cover 31 (see FIG. 2).
  • a lens optical system (not shown) is mainly disposed inside the convex portion of the cover portion 3 described above, and an opening 35 for guiding the projection light to the outside is formed (see FIG. (In FIG. 1, only the last part of the lens optical system is shown through the opening 35).
  • a rotary knob 33 for focus adjustment, a touch panel type operation unit 34 including various input push buttons, and the like are respectively attached.
  • the projection-type image display device has one side surface of the lower case 2 having a substantially rectangular outer shape (the side opposite to the side on which the openable mirror cover 31 is provided).
  • a pair of stand legs 5 and 5 that are integrally formed with the main body and have a structure that can be installed in accordance with the type of use of the projection display apparatus It has been.
  • the power supply inlet portion 6 into which the power cable is inserted for example, when supplying AC power from a commercial power supply to the device, Intake / exhaust port 7 which is an opening for inhaling / exhausting air from outside, and further, although not shown here, for inputting an image projected and displayed by the projection-type image display device from the outside
  • the terminal board is attached.
  • the bottom surface of the lower case 2 can be finely adjusted including the cooling air intake / exhaust port and the installation angle of the apparatus, which will be described in detail later.
  • An inclination adjusting leg 8 and the like are attached.
  • the weight of the entire apparatus is set to about 1.2 kg. That is, the projection-type image display device can be carried in a bag or the like together with a portable terminal, etc., and can be easily installed on a wall surface or the surface of a desk at a transport destination. It is designed to be able to project.
  • FIG. 3 is a cross-sectional view showing an example of the configuration of the optical system described above.
  • a DLP (Digital Light Processing) (registered trademark) apparatus 100 for example, emits light from a light source such as a semiconductor laser (not shown) according to an external video signal (for example, a video signal from a portable terminal).
  • modulation is performed by a reflection type light modulation device 100 including a micromirror or a reflection type liquid crystal panel (LCOS (registered trademark): Liquid crystal on silicon) or a transmission type light modulation device 100 including a liquid crystal panel.
  • LCOS reflection type liquid crystal panel
  • the image obtained thereby is synthesized by the TIR prism 101, projected onto the reflection mirror 32 via the projection lens system 102 composed of a plurality of lenses, reflected on the surface, and enlarged and projected.
  • the projection lens system 102 composed of a plurality of lenses described above is a free-form surface that is not rotationally symmetric and is necessary for correcting various distortions associated with enlarged projection of an image, such as distortion due to oblique incidence and trapezoidal distortion.
  • Various types of lenses are included, including shaped lenses.
  • the projection lens system 102 is movably mounted on the projection lens base 103, and moves a part of the projection lens or a lens group in the vertical direction in the figure by the action of the lens adjustment mechanism 104 in the figure. This makes it possible to adjust the focus performance.
  • a power supply unit for supplying necessary power to each part of the device, Axial fans, sirocco fans, heat pipes, cooling fins, etc. for cooling each part that generates heat, so-called cooling devices, for green (G) light, red (R) light, blue (B) light emission
  • Axial fans, sirocco fans, heat pipes, cooling fins, etc. for cooling each part that generates heat
  • so-called cooling devices for green (G) light, red (R) light, blue (B) light emission
  • An LED illumination unit including LEDs and the like, a control unit including a CPU for controlling the operation of each unit, a processor for performing video processing, and the like are appropriately arranged and stored.
  • the projection type image display apparatus basically has (A) a device body having a flat outer shape placed horizontally on a desk, table, or floor surface. And a horizontal usage mode in which an image is projected onto a surface (for example, an installed screen or wall surface) perpendicular thereto, and (B) the projection type video display device according to an embodiment of the present invention is set up in the vertical direction. Horizontal usage mode in which the main body of the device is installed vertically on a desk, table, or floor surface, and the image is projected onto the desk, table, or floor surface. Used in.
  • ⁇ A Horizontal usage>
  • the apparatus main body 1 is placed horizontally on the surface of the table T, for example, with the bottom face down, and the openable mirror cover 31 is opened. . Then, the position of the reflection mirror 32 attached to the inside of the openable mirror cover 31 is adjusted so as to face a screen or a wall surface (not shown) on which an image is projected.
  • the focus adjustment knob 33 described above may be adjusted again by appropriately rotating.
  • ⁇ B Vertical usage pattern>
  • a pair of stands attached integrally with the main body from the apparatus main body 1 in the state of FIG. 2 to one side surface of the lower case 2 (the side opposite to the side on which the openable mirror cover 31 is provided).
  • the legs 5 and 5 are respectively taken out by rotating in predetermined directions (see the arrows in the figure), and are in a state as shown in FIG.
  • the surface of the pair of stand legs 5 and 5 is installed so as to come into contact with the surface of the desk, for example, so that the apparatus main body 1 is in a vertically placed form.
  • FIG. 5 mentioned above an example of the terminal board 65 attached to the side surface of the lower case 2 is shown in detail.
  • the terminal board 65 includes USB terminals “USB A” and “USB B”, a VGA terminal “COMPUTER IN” for inputting a video signal from the computer, an HDMI (registered trademark) terminal, and an audio input.
  • a terminal “AUDIO IN” is provided.
  • FIG. 6A shows a mounting structure of the above-described pair of stand legs 5, 5, particularly one of them, on the side surface of the lower case 2.
  • the stand leg 5 is formed by, for example, injection molding of resin or the like and has an appearance shape that fits the side surface of the lower case 2.
  • the desired inclination described above in the thickness direction is used.
  • a block-shaped sliding stopper / lock component 56 is arranged inside the lower case 2.
  • the sliding stopper / locking part 56 has an opening into which the protrusion 52 on the stand leg 5 side is inserted, a ratchet mechanism described below, and the like. It is integrally formed.
  • the sliding stopper / locking part 56 penetrates through a washer 57, a wave washer (washer spring) 58, and another washer 59 (this washer rotates following the stand leg 5). It attaches with respect to the leg main-body part 51 mentioned above with the screw
  • FIG. 6B shows a cross section of the stand leg mounting structure having the above-described configuration after completion.
  • FIG. 7 shows a function / operation after completion of the stand leg mounting structure, in particular, a protrusion 52 extending from a part of the leg main body 51 and the protrusion 52 formed at the center thereof. It is the partially expanded view mainly shown on the sliding stopper / locking part 56 inserted in the opened part.
  • a convex portion 521 and a pair of semicircular concave portions 522 and 522 are formed on the outer periphery of the cylindrical projection portion 52 extending from a part of the leg main body portion 51.
  • the sliding stopper / lock component 56 into which the protrusion 52 is inserted includes a disk-shaped member at the center of the rectangular main body, and the substantially center of the disk-shaped member includes: An opening 561 is formed into which the cylindrical protrusion 52 of the leg main body 51 is inserted so as to be slidable in the circumferential direction.
  • the opening 561 allows the projection 521 of the projection 52 to rotate within a range of a predetermined angle (in this example, 0 degrees to 90 degrees). This is a fan-shaped opening that widens at an angle (90 degrees in this example). Further, the disk-shaped member is a so-called for holding the projection 52 (that is, the stand leg 5) stably at a predetermined angle (in this example, 0 degrees and 90 degrees) together with the opening.
  • a ratchet mechanism 562 is provided.
  • the mounting structure of the stand leg including the locking mechanism and the ratchet mechanism using the washer spring described above there is no problem (for example, unusable due to forgetting to transport) as when the stand leg is separated.
  • the optimum position can be obtained without making a mistake in the direction of taking out and, for example, by clicking sound by the ratchet mechanism described above.
  • By confirming the setting it is possible to easily fix stably at a desired take-off angle (that is, 90 degrees).
  • FIGS. 8A and 8B are a top view and a side view of a so-called screw-type adjusting mechanism, which is an example of the tilt adjusting mechanism described above.
  • the tilt adjusting mechanism 100 is made of, for example, a cylindrical member made of metal or resin, and has a thread groove 110 formed on the outer periphery thereof.
  • a head 120 having a groove 121 into which an end of the coin can be inserted, and a contact (leg) portion 130 in contact with the surface of a desk or table.
  • openings 140 and 140 are formed in a part of the pair of stand legs 5 and 5, and an inclination adjusting mechanism 100 is formed on the inner peripheral surface thereof.
  • a thread groove (not shown here) is formed to be screwed with the thread groove 110 of the cylindrical member.
  • the cylindrical adjustment mechanisms 100 and 100 are inserted into the openings 140 and 140 while screwing the screw grooves to each other.
  • the projection type image display device for the surface of the desk or table is in a state where the device is set up, that is, B: in the vertical usage mode, the end of a coin such as a ten-yen coin is displayed.
  • the contact portion 130 can adjust the protrusion from the bottom surface of the stand leg 5, and thus the tilt angle of the projection display apparatus can be adjusted. It will be apparent to those skilled in the art that this is possible.
  • the positional relationship with the surface of the projected video (image) is shown along with the change in the tilt angle of the device, but in this figure, for convenience of illustration, it is replaced with a projection type video display device.
  • the surface on which the apparatus is set up and on which video (image) is projected is drawn by a solid line or a chain line by changing its position.
  • the height “t” of the tilt adjustment mechanism 100 is also smaller than the thickness “T” of the stand leg 5 (T ⁇ t), for example, depending on the mounting position. It is preferable to set. Such a setting would be preferable without tilting the tilt adjusting mechanism 100 popping out when the stand leg 5 is housed in the side surface of the apparatus.
  • the upper part of the opening 140 of the stand leg 5 has a dimension in which an end of a coin such as a ten-yen coin can be inserted.
  • a screw groove for screwing with the screw groove 110 of the cylindrical member constituting the inclination adjusting mechanism 100 described above is indicated by reference numeral 141.
  • FIGS. 11A and 11B are a side view and a top view of a projection-type image display apparatus having a so-called slide-type tilt adjustment mechanism 100 ′ different from the above on the stand leg 5.
  • this slide type inclination adjusting mechanism 100 includes a projection type by moving its position (indicated by an arrow in the figure) including A: horizontal usage and B: vertical usage. The tilt state of the video display device is adjusted.
  • two adjustment mechanisms 100 ′ and 100 ′ are attached to each stand leg 5. More specifically, a front adjustment mechanism 100′-f and a rear adjustment mechanism 100′-b are attached to the stand leg 5 on the left side of the drawing at positions close to the left and right ends, respectively. .
  • each of these adjustment mechanisms 100 '... is provided with a contact (leg) portion 130' for contacting the surface of a desk or table. More specifically, the front adjustment mechanism 100'-f has one contact (leg) portion 130 ', and the rear adjustment mechanism 100'-b has two contact (leg) portions 130'. 'Are attached to the surfaces that are orthogonal to each other. And each of them can move in the direction shown by the arrow in the figure, for example.
  • FIGS. 12 to 15 show an example of a mechanism for changing the position (projection amount) of the contact (leg) portion 130 ′ by moving the position of the adjusting mechanism 100 ′ described above.
  • the adjustment mechanism 100 ′ is formed so as to be movable (slidable) along the outer peripheral surface of the stand leg 5 (in this example, the cross-section is substantially “col”). It is a slide member formed in the shape of "".
  • a guide groove g is formed on a part of the outer periphery of the stand leg 5 at a predetermined inclination angle, and a part of the adjusting mechanism 100 ′ (in this example, it extends inward) in the guide groove g. Are inserted and attached. That is, according to such a configuration, the adjustment mechanism 100 ′ can move in the left-right direction in the drawing (see the arrow in FIG.
  • the adjustment mechanism 100 ′ moves in the vertical direction along with the movement. Move to.
  • the height of the contact (leg) portion 130 ′ attached to a part (for example, the bottom portion) of the adjustment mechanism 100 ′ can be freely adjusted.
  • FIGS. 13 (a) and 13 (b) by providing a mechanism similar to that described above also in the orthogonal direction, as shown in FIG.
  • the adjustment mechanism 100 ′ By moving the adjustment mechanism 100 ′ (particularly, the rear adjustment mechanism 100′b) provided in a part, the height of the contact (leg) part 130 ′ attached to a part (for example, the bottom and side surfaces) of the adjustment mechanism 100 ′. (Height in the y-axis direction and z-axis direction in the figure) can be freely adjusted.
  • the adjustment mechanism 100 ′ which is a slide member provided on a part of the stand leg 5, is also used in the A: horizontal usage mode shown in FIG.
  • the projection type image display apparatus has two contact (leg) portions 130 ′ of the inclination adjusting leg 8 located on the bottom surface and the two rear adjusting mechanisms 100′-b of the stand leg 5. (3 points in total: see FIG.
  • the openable mirror cover 31 having a reflection mirror (free-form mirror) 32 attached therein is usually provided on the upper surface side of the apparatus. Therefore, in particular, when used in the usage mode of B: vertical installation, the distance to the surface of the desk or table on which the projected video (image) is displayed is determined by the position of the reflection mirror 32 in the main body 1. .
  • FIG. 17 it is proposed to adjust the position of the stand leg 5 with respect to the apparatus body 1, that is, the height (length) of the stand leg.
  • the protrusion 52 (see FIGS. 6A and 7) extending from a part of the leg main body 51 of the stand leg 5 is extended.
  • a screw groove 523 is formed on the inner peripheral surface thereof, and a screw is inserted into the screw groove 523 inside the lower case 2 (see FIG. 6A).
  • a screw 600 having a screw groove 601 to be mated is fixedly attached. According to this configuration, when the pair of stand legs 5 are taken out from the lower case 2, the heights can be independently adjusted to a desired height (length) by rotating them. Is possible.
  • FIGS. 18A and 18B effects of the above-described stand leg height adjusting mechanism will be described.
  • B by rotating the pair of stand legs 5 and adjusting their heights (see arrows in the figure). It is possible to adjust the size of the image light placed on a desk or table and enlarged and projected to a desired size (see FIG. 18B).
  • the pair of stand legs 5 are A suitable screen can be obtained by appropriately adjusting the heights (see “d1” and “d2” in FIG. 18A) independently of each other.
  • a terminal board 65 having a terminal for inputting a video signal from a portable terminal) and a power inlet portion 6 into which a power cable is inserted are attached to the side surface of the lower case 2 forming the main body 1. Yes.
  • a plurality of cables are connected to the side surface of the projection display apparatus.
  • the operator's finger is caught on these cables. Is a force applied to the power inlet 6 and the terminal board 65, and therefore the projection type video display device moves (projection image is disturbed) or falls (projection image disappears). Conceivable.
  • the terminal board 65 and the power inlet portion 6 are located below the device, particularly in the “vertical usage mode”. Is attached in position. That is, when the terminal board 65 and the power inlet 6 are used in a state where the pair of stand legs 5 and 5 are taken out and the apparatus main body 1 is stood up, the terminal board 65 and the power inlet section 6 come to positions close to the taken out stand legs 5 and 5. It is installed as follows.
  • the installation state can be appropriately changed according to the use situation by a simple operation, and the projection type image display device is excellent in practical use. Is provided.
  • the present invention is not limited to the above-described embodiment, and it is obvious that various modifications are included.
  • the above-described embodiments have been described in detail for easy understanding of the present invention. Therefore, the present invention is not necessarily limited to those having all the configurations described.
  • a part of the configuration of a certain embodiment can be replaced with another configuration, and another configuration can be added to the configuration of a certain embodiment.
  • SYMBOLS 1 Main body (casing), 2 ... Lower case, 3 ... Upper case, 31 ... Open / close-type mirror cover, 32 ... Reflection mirror (free-form surface mirror), 35 ... Opening part 5, 5 ... Stand leg, 100 ... Screw Type tilt adjustment mechanism, 100 '... slide type tilt adjustment mechanism, 130' ... contact (leg) part, g ... guide groove, 52 ... projection part, 523 ... screw groove, screw ... 600.

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  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)

Abstract

La présente invention concerne un dispositif d'affichage vidéo de type à projection qui contient, à l'intérieur d'un boîtier comprenant un logement inférieur (2) et un logement supérieur, un système optique comprenant un objectif de projection et conçu pour émettre une lumière vidéo destinée à être agrandie et projetée, un moyen d'agrandissement et de projection de la lumière vidéo émise par le système optique vers une surface d'affichage étant fixé à une partie du logement supérieur. Une paire de pieds de support (5) est logée de façon déployable dans une surface latérale du boîtier, et chaque pied de support (5) est pourvu de : un premier mécanisme d'ajustement (100) permettant d'ajuster l'angle d'inclinaison du dispositif d'affichage vidéo de type à projection lorsque le pied de support (5) a été déployé et le dispositif d'affichage vidéo de type à projection est utilisé dans un mode d'orientation verticale avec la surface latérale en tant que surface inférieure ; un deuxième mécanisme d'ajustement permettant d'ajuster l'angle d'inclinaison du dispositif lorsque le pied de support (5) est logé et le dispositif d'affichage vidéo de type à projection est utilisé dans un mode d'orientation horizontale au moyen de la surface inférieure du boîtier ; et un troisième mécanisme d'ajustement capable d'ajuster la hauteur par rapport à la surface d'installation du dispositif d'affichage vidéo de type à projection lorsque le pied de support (5) a été déployé et le dispositif d'affichage vidéo de type à projection est utilisé dans le mode d'orientation verticale avec la surface latérale en tant que surface inférieure.
PCT/JP2017/013357 2017-03-30 2017-03-30 Dispositif d'affichage vidéo de type à projection WO2018179267A1 (fr)

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PCT/JP2017/013357 WO2018179267A1 (fr) 2017-03-30 2017-03-30 Dispositif d'affichage vidéo de type à projection

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3087733U (ja) * 2002-02-04 2002-08-16 船井電機株式会社 ビデオプロジェクタ
JP2003005279A (ja) * 2001-06-20 2003-01-08 Fujitsu General Ltd プロジェクタのチルト装置
JP2006184441A (ja) * 2004-12-27 2006-07-13 Casio Comput Co Ltd チルト機構及びプロジェクタ
JP2010191269A (ja) * 2009-02-19 2010-09-02 Seiko Epson Corp プロジェクター
JP2011002504A (ja) * 2009-06-16 2011-01-06 Sanyo Electric Co Ltd 投写型映像表示装置
JP2011158522A (ja) * 2010-01-29 2011-08-18 Sanyo Electric Co Ltd 投写型映像表示装置
JP2012137707A (ja) * 2010-12-28 2012-07-19 Sanyo Electric Co Ltd 投写型映像表示装置
JP2014232199A (ja) * 2013-05-29 2014-12-11 カシオ計算機株式会社 投影装置、支持板、及び、投影装置の投影方法
WO2015037138A1 (fr) * 2013-09-13 2015-03-19 日立マクセル株式会社 Dispositif d'affichage d'image de type à projection

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003005279A (ja) * 2001-06-20 2003-01-08 Fujitsu General Ltd プロジェクタのチルト装置
JP3087733U (ja) * 2002-02-04 2002-08-16 船井電機株式会社 ビデオプロジェクタ
JP2006184441A (ja) * 2004-12-27 2006-07-13 Casio Comput Co Ltd チルト機構及びプロジェクタ
JP2010191269A (ja) * 2009-02-19 2010-09-02 Seiko Epson Corp プロジェクター
JP2011002504A (ja) * 2009-06-16 2011-01-06 Sanyo Electric Co Ltd 投写型映像表示装置
JP2011158522A (ja) * 2010-01-29 2011-08-18 Sanyo Electric Co Ltd 投写型映像表示装置
JP2012137707A (ja) * 2010-12-28 2012-07-19 Sanyo Electric Co Ltd 投写型映像表示装置
JP2014232199A (ja) * 2013-05-29 2014-12-11 カシオ計算機株式会社 投影装置、支持板、及び、投影装置の投影方法
WO2015037138A1 (fr) * 2013-09-13 2015-03-19 日立マクセル株式会社 Dispositif d'affichage d'image de type à projection

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