Projection system

Abstract

To provide a projection system excellent in operability while suppressing deterioration of design appearance.SOLUTION: A projection system comprises: a projector that emits light as a projection image to be projected on a projection surface; a projection cabinet that houses the projector; and a holding member on which an object is placed. The projection cabinet includes: a housing having a first opening arranged in accordance with the configuration of the projector and a second opening for a user to grip the projection cabinet; and an installation section disposed in the housing and on which the projector is installed. The holding member is detachably attached to at least one of the first opening and the second opening.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to projection systems. [Background technology]

[0002] Cabinets described in Patent Documents 1 and 2 are known as furniture that can be moved with a projector placed on it. The cabinet described in Patent Document 1 employs a structure in which the projector is placed on the top plate with operating devices for the projector placed on shelves inside. The cabinet described in Patent Document 2 employs a structure in which items such as operating devices are held by item holding members attached to multiple mounting holes provided on the side plates of the cabinet body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-287764 [Patent Document 2] Japanese Patent Application Laid-Open No. 2003-009967 Summary of the Invention [Problem to be solved by the invention]

[0004] In the cabinet described in Patent Document 1, when operating the operating devices inside the cabinet, the projector needs to be moved from the top panel, which makes it difficult for the user to access the operating devices, and is inconvenient for the user. Also, in the cabinet described in Patent Document 2, the cabinet's aesthetic appearance is marred by the multiple mounting holes provided in the cabinet body. [Means for solving the problem]

[0005] In order to solve the above problem, according to one aspect of the present invention, there is provided a projection system comprising: a projector that emits light as a projection image to be projected onto a projection surface; a projection cabinet that houses the projector; and a holding member on which an object is placed, wherein the projection cabinet comprises a housing having a first opening arranged according to the structure of the projector and a second opening for a user to grasp the projection cabinet; and an installation section arranged in the housing on which the projector is installed, and the holding member is removably attached to at least one of the first opening and the second opening. [Brief explanation of the drawings]

[0006] [Figure 1] FIG. 1 is a front perspective view showing the configuration and installation of a projection system according to a first embodiment. [Figure 2] FIG. 1 is a rear perspective view showing the schematic configuration and installation of a projection system. [Figure 3] FIG. 2 is a right side view showing the schematic configuration and installation of the projection system. [Figure 4] FIG. 1 is a top view showing a schematic configuration and installation mode of a projection system. [Figure 5] FIG. [Figure 6] FIG. 2 is an exploded perspective view of the cabinet body. [Figure 7] FIG. 2 is a front perspective view showing a schematic configuration of a projection cabinet. [Figure 8] FIG. 2 is a rear perspective view showing a schematic configuration of a projection cabinet. [Figure 9] FIG. [Figure 10] FIG. 2 is a perspective view showing a configuration of a holding member. [Figure 11] FIG. 10 is a cross-sectional view showing a state in which the holding member is attached to the first hole. [Figure 12] FIG. 2 is a plan view of an operation panel. [Figure 13] FIG. 2 is a block diagram showing the configuration of a controller. [Figure 14] FIG. 10 is a diagram showing an example of cabling of a projection cabinet. [Figure 15A] FIG. 10 is a perspective view showing a schematic configuration of a holding member according to a second embodiment. [Figure 15B] FIG. 10 is a cross-sectional view showing a state in which the holding member is attached to the cabinet main body. [Figure 16A] FIG. 10 is a perspective view showing a schematic configuration of a holding member according to a third embodiment. [Figure 16B] FIG. 10 is a cross-sectional view showing a state in which the holding member is attached to the cabinet main body. DETAILED DESCRIPTION OF THE INVENTION

[0007] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings below, the size of each component may be shown at a different scale to make it easier to see the components. For ease of explanation, the three mutually perpendicular axes will be referred to as the X-axis, Y-axis, and Z-axis, and the direction parallel to the X-axis will be referred to as the "X-axis direction," the direction parallel to the Y-axis as the "Y-axis direction," and the direction parallel to the Z-axis as the "Z-axis direction." The tip of each axis in the direction of the arrow will also be referred to as the "plus side," and the opposite side as the "minus side." In the following, the surface on the negative X-axis direction will also be referred to as the "front," the surface on the positive X-axis direction as the "back," the surface on the negative Y-axis direction as the "left side," the surface on the positive Y-axis direction as the "right side," the surface on the positive Z-axis direction as the "top," and the surface on the negative Z-axis direction as the "bottom."

[0008] (First embodiment) An embodiment of a projection system of the present invention will be described with reference to the drawings. FIG. 1 is a front perspective view showing the schematic configuration and installation of a projection system 1 of this embodiment. FIG. 2 is a rear perspective view showing the schematic configuration and installation of the projection system 1. FIG. 3 is a right side view showing the schematic configuration and installation of the projection system 1. FIG. 4 is a top view showing the schematic configuration and installation of the projection system 1. Note that FIGS. 3 and 4 omit illustrations of a webcam 5, controller 6, correction unit 7, and holding member 50, which will be described later.

[0009] 1 or 2, the projection system 1 includes a projection cabinet 2, a projector 3 mounted on the projection cabinet 2, and a holding member 50 on which an output device 100 is placed, the output device 100 outputting a predetermined signal to the projector 3. The projection cabinet 2 can be referred to as a fixture. The output device 100 may be, for example, a personal computer or a portable terminal device such as a tablet or smartphone.

[0010] The projection cabinet 2 has a cabinet main body 10 and an operation panel 4. In this embodiment, the cabinet main body 10 is an example of a housing. In this embodiment, the output device 100 is an example of an object. That is, the output device 100, which is an example of an object in this embodiment, is an operation body operated by a user who is a user of the projection system 1. The cabinet body 10 has a lower assembly 20 and an upper assembly 30, and is box-shaped as a whole. The holding member 50 is detachably attached to the cabinet body 10. The configuration of the holding member 50 will be described later.

[0011] The projector 3 is housed between the lower assembly 20 and the upper assembly 30. More specifically, the projector 3 is installed on the upper surface of the lower assembly 20, and is housed in a state where it is surrounded from above and on all sides by the upper assembly 30. In this embodiment, the lower assembly 20 is an example of an installation section.

[0012] A projection opening 31 is provided on the top surface of the upper assembly 30. The projection opening 31 is an opening provided to allow projection light Lp emitted from the projection light source unit 3p of the projector 3 to pass through. In other words, the projection opening 31 can be said to be an opening arranged in accordance with the function of the projector 3. In this embodiment, the projection opening 31 is an example of a first opening.

[0013] The projection cabinet 2 has casters 28 at the four corners of the underside of the lower assembly 20. By unlocking the casters 28, the user of the projection system 1 can move the projection cabinet 2 to a desired location. For example, the user can move the projection cabinet 2 from a living room to a conference room, or from a conference room to another conference room.

[0014] The user installs the projection cabinet 2 at a predetermined projection position in the conference room. At this time, the projection cabinet 2 is installed so that the back surface thereof faces the wall W. Specifically, as shown in FIGS. 3 and 4, the user moves the projection cabinet 2 so that the entire end surface 21f of the projection 21p of the lower assembly 20 abuts against the wall surface W. The predetermined projection position is the position where the entire end surface 21f of the protrusion 21p of the lower assembly 20 abuts against the wall surface W. In this embodiment, the position where the protrusion 21p of the lower assembly 20 abuts against the wall surface W is an example of the predetermined position where the projector 3 displays the projection image P on the wall surface W as the projection surface. The predetermined position can also be called the predetermined projection position.

[0015] As shown in FIG. 1 or 2, after the projection cabinet 2 is installed at a predetermined projection position, the projector 3 is started and the projection light source unit 3p projects projection light Lp toward a wall surface W. In this embodiment, the wall surface W is an example of a projection surface. The projection surface is not limited to the wall surface W. The projection surface is not limited to a rigid flat surface, and may be a curtain made of cloth or a sheet.

[0016] 2 or 4, the projection light source unit 3p is a portion where projection light Lp generated inside the projector 3 is emitted to the outside of the housing of the projector 3. In other words, the projection light source unit 3p is an outlet from which the projector 3 emits the projection light Lp. The projection light source unit 3p is preferably covered with a light-transmitting plate such as glass or synthetic resin, but may also be an opening.

[0017] 1 or 2, when projection light Lp is projected onto a wall surface W from the projection light source unit 3p of the projector 3, a projection image P is displayed on the wall surface W. In this embodiment, the projection light Lp is an example of light.

[0018] The screen size S of the projected image P is, for example, 80 inches. The screen size S is not limited to 80 inches. For example, it may be 100 inches or 120 inches. The projected image P is rectangular. That is, the lengths of the diagonals of the projected image P are equal, and the midpoints of the diagonals of the projected image P coincide with the image center Cp.

[0019] In this embodiment, the upper surface of the lower assembly 20 is specifically the upper surface of the pedestal 21. The upper surface of the lower assembly 20 or the upper surface of the pedestal 21 is an example of an installation surface on which the projector 3 is installed. If the height of the installation surface on which the projector 3 is installed is set to the same value as the height of the table T in the conference room, the sense of unity with the table T can be enhanced.

[0020] Next, the configuration of the projection cabinet 2 will be described. Fig. 5 is an exploded perspective view of the projection cabinet 2. Fig. 6 is an exploded perspective view of the cabinet main body 10. Fig. 7 is a front perspective view of the projection cabinet 2. Fig. 8 is a rear perspective view of the projection cabinet 2. Fig. 9 is an enlarged right side view of the protrusion 21p. Note that the holding member 50 is omitted from Figs. 5 to 9.

[0021] As shown in FIG. 5, the projection cabinet 2 has a cabinet body 10 and an operation panel 4. As shown in FIG. 6, the cabinet body 10 is composed of a lower assembly 20 and an upper assembly 30, and in consideration of ease of maintenance, the lower assembly 20 and the upper assembly 30 are assembled in a manner that allows them to be disassembled.

[0022] Fixing members such as metal fittings are used to assemble the lower assembly 20 and the upper assembly 30. The fixing members are provided in positions that are not visible from the outside so as not to spoil the appearance. Appearance can also be rephrased as aesthetics.

[0023] 5 and 6, the lower assembly 20 has a rectangular parallelepiped shape surrounded on six sides by a base 21, a right side plate 22, a left side plate 23, a front plate 24, a front cover 26, a bottom plate 25, and a back lower cover 27. Casters 28 are provided at the four corners of the underside of the bottom plate 25.

[0024] The two casters 28 on the front side are lockable, and the two casters 28 on the rear side are not lockable. As will be described later, the projection cabinet 2 can be carried using a handle 29, so the casters 28 may not be attached.

[0025] 7 and 8, an accommodation space 20s is provided inside the lower assembly 20. The accommodation space 20s can be accessed via a front cover 26 provided on the front surface of the lower assembly 20 in an openable and closable manner, or a back lower cover 27 provided on the rear surface of the lower assembly 20 in an openable and closable manner.

[0026] As shown in FIG. 7, by opening the front cover 26, the user can access the speaker 12 and the internal video IF (Interface) 13 housed in the housing space 20s from the front of the projection cabinet 2.

[0027] The internal video IF 13 is a port for video and / or audio, and has ports such as a MIDI (Musical Instrument Digital Interface) and a USB (Universal Serial Bus). The internal video IF 13 is connected to an AV (Audio Visual) input port 8 provided in the upper assembly 30, and predetermined signals including video signals and audio signals are supplied to the internal video IF 13 from an output device 100 placed on the holding member 50 shown in FIG. 1 via the AV input port 8. The output device 100 and the AV input port 8 may be connected either wired or wirelessly.

[0028] The speaker 12 is an AV device capable of outputting a large volume. In this embodiment, the speaker 12 is installed in the accommodation space 20s in a state where it is attached to a 19-inch rack shelf.

[0029] The speaker 12 is housed when it is expected to be used in a situation where a high volume is required, such as in a large conference room or an open space. Therefore, when a high volume is not required, the speaker 12 does not need to be housed.

[0030] 8, by opening the back lower cover 27, the user can access the internal power tap 14 housed in the housing space 20s from the back of the projection cabinet 2. A notch 27h provided in the back lower cover 27 can be used as a handle when opening the back lower cover 27.

[0031] The internal power tap 14 is connected to the power cords of the projector 3, speaker 12, power supply port 11 provided on the upper assembly 30, web camera 5, etc., and AC power is supplied from an outlet (not shown) via an AC (Alternating Current) inlet 9 provided on the right side panel 22.

[0032] The storage space 20s is provided with rack mount angles 15 for forming a 19-inch rack space 15s that conforms to the EIA (Electronic Industries Alliance) standard. The 19-inch rack space 15s stores 19-inch devices such as conference system equipment and batteries.

[0033] As shown in FIGS. 5 and 6, the base 21 is the top plate of the lower assembly 20. The projector 3 is installed on the upper surface of the base 21. In other words, the base 21 has an installation surface on which the projector 3 is installed. The base 21 has a fixing portion 21c, a through hole 21a, a protrusion 21p, a handle 29, a wiring hole 17, and a supporter 16.

[0034] The fixing portion 21c is provided to fix the projector 3 to the upper surface of the base 21. By providing the fixing portion 21c, displacement of the installation position of the projector 3 within the projection cabinet 2 due to movement of the projection cabinet 2, etc., is suppressed.

[0035] The fixing portions 21c are provided at two locations corresponding to the positions of the legs 3m of the projector 3. In this embodiment, the fixing portion 21c is a recess. The projector 3 is fixed by fitting the tips of the legs 3m of the projector 3 into the recess. The fixing portion 21c is not limited to a recess. For example, it may be a through hole, an L-shaped pillar, an angle, a bracket, or the like. The number of locations where the fixing portion 21c is disposed is not limited to two. It is sufficient to provide as many fixing portions 21c as necessary to prevent the projector 3 from shifting in position, in the required locations.

[0036] The through-hole 21a is an opening for intake of the projector 3, and is provided in the base 21 at a position corresponding to the intake port of the projector 3. The through-hole 21a allows the projector 3 to stably take in necessary and sufficient cooling air through the through-hole 21a.

[0037] In this embodiment, the projector 3 has two air intakes, one in the center of the bottom surface and one on the front side, and therefore the through holes 21a are also provided in two locations corresponding to the air intakes. Note that the through hole 21a provided in one location may be made up of multiple through holes or slits formed by punching or slitting.

[0038] The protrusion 21p is a portion on the rear side of the base 21, and is the portion of the cabinet body 10 that protrudes most toward the positive side in the X-axis direction. 9, the protrusion 21p protrudes a length Pw from the rear surface of the back panel 39 of the back lower cover 27 or the upper assembly 30. In this embodiment, the length Pw is equal to or greater than 2 mm and equal to or less than 5 mm. By setting the dimension of the length Pw to be equal to or greater than 2 mm and equal to or less than 5 mm, the effect on the appearance can be minimized.

[0039] The end surface 21f of the protrusion 21p forms a reference surface when positioning the projector 3 at a predetermined projection position. In this embodiment, the end surface 21f is a continuous flat surface, as shown in FIG. 4. Note that the end surface 21f is not limited to a flat surface. The end surface 21f may have projections and recesses as long as it can form a reference surface.

[0040] In the projection cabinet 2 of this embodiment, the protrusion 21p used when positioning the projector 3 at a predetermined projection position is provided integrally with the base 21. The projector 3 is also installed on the base 21. In other words, the base 21 is the only component provided between the projector 3 and the wall surface W with which the protrusion 21p abuts.

[0041] This reduces the possibility of manufacturing variations and assembly errors, and also reduces the possibility of rattles occurring due to use or aging, thereby improving the reliability of alignment accuracy.

[0042] 5 and 6, handles 29 are provided on both the left and right sides of the base 21. The handles 29 are used when moving the projection cabinet 2. For example, in a location where there is a step that the casters 28 cannot overcome, the user can grasp the handles 29 with their hands, lift the projection cabinet 2, and move it over the step.

[0043] The right-side handle 29 is formed from the portion between the first hole 29a, which is a through-hole provided in the right side plate 22, and the second hole 29b, which is a through-hole provided in the base 21. The left-side handle 29 is formed from the portion between the first hole 29a, which is a through-hole provided in the left side plate 23 shown in FIG. 8, and the second hole 29b, which is a through-hole provided in the base 21.

[0044] 5 and 6, the first hole 29a and the second hole 29b communicate with each other via the accommodation space 20s of the lower assembly 20, and the user can hold the handle 29 by inserting the fingertip from the first hole 29a and protruding it from the second hole 29b. In other words, in this embodiment, the first hole 29a is an example of a second opening that allows the user to hold the projection cabinet 2.

[0045] In the present embodiment, the holding member 50 is detachably attached to the first hole 29a. The first holes 29a are located on both the left and right sides of the cabinet main body 10 when the wall surface W, which is the projection surface, is facing forward. Therefore, when the holding member 50 is attached, the holding member 50 is located on the side of the cabinet main body 10, which can prevent the holding member 50 from being positioned between the wall surface W and the projection cabinet 2 or between the projection cabinet 2 and the user, which can cause problems such as the holding member 50 becoming a hindrance.

[0046] Fig. 10 is a perspective view showing the configuration of the holding member 50. Fig. 11 is a cross-sectional view showing the state in which the holding member 50 is attached to the first hole 29a. Fig. 11 is a view corresponding to the cross section taken along the line XI-XI in Fig. 10. 10 and 11, the holding member 50 has a holding portion 51, an insertion portion 52, a first locking portion 53, and a second locking portion 54. The holding member 50 is made of a single metal plate that has been bent. This allows the holding member 50 to be made lighter and less expensive.

[0047] The holding portion 51 has a holding surface 51a on which the output device 100 is placed and held, and a rectangular through-hole 50K that penetrates the holding surface 51a. Therefore, the holding surface 51a has a substantially U-shape. The through-hole 50K exposes the bottom side of the output device 100 placed on the holding surface 51a, allowing, for example, a cable drawn out from the output device 100 to be inserted therethrough. Furthermore, by exposing the bottom side of the output device 100, the through-hole 50K can improve the heat dissipation of the output device 100.

[0048] The insertion portion 52 extends from the holding portion 51 in the Y-axis direction along the holding surface 51a and is inserted into the first hole 29a. The through-hole 50K also passes through the insertion portion 52. Therefore, the insertion portion 52 is composed of a pair of plate members 52a spaced apart in the X-axis direction. The pair of plate members 52a are connected to both ends 53a of the rectangular first locking portion 53.

[0049] The first locking portion 53 extends from the insertion portion 52 along the Z-axis direction intersecting with the holding surface 51a, and abuts against the inner peripheral edge 29b1 of the second hole 29b. In this embodiment, the inner peripheral edge 29b1 of the second hole 29b is an example of an inner wall of the housing. Here, the abutment between the first locking portion 53 and the inner peripheral edge 29b1 does not mean that the first locking portion 53 and the inner peripheral edge 29b1 are in complete contact when the retaining member 50 is attached to the first hole 29a, but also means that the first locking portion 53 and the inner peripheral edge 29b1 are positioned opposite each other with a predetermined gap between them.

[0050] The second locking portion 54 is provided on the -Z side of the holding surface 51a, opposite the +Z side on which the first locking portion 53 extends, and abuts against the outer surface 22a of the right side plate 22 at the base side of the insertion portion 52. Specifically, the second locking portion 54 is configured by bending a portion continuous with the holding portion 51 toward the -Z side, and is configured as a pair of plate members that form part of the open end of the through-hole 50K and face each other in the X-axis direction. The second locking portion 54 has a bent portion 54a, on the base side of the insertion portion 52, that is bent toward the inside of the through-hole 50K. The bent portion 54a of the second locking portion 54 is the portion that abuts against the outer surface 22a of the right side plate 22. Here, the abutment between the second locking portion 54 and the outer surface 22a does not necessarily mean that the second locking portion 54 and the outer surface 22a are in complete contact when the retaining member 50 is attached to the first hole 29a, but also means that the second locking portion 54 and the outer surface 22a are positioned opposite each other with a predetermined gap between them.

[0051] 5, for example, at a position where a sufficient space can be secured for first locking portion 53 of holding member 50 inserted through first hole 29a to fit along the inner wall of right side plate 22. In this case, the inner wall of right side plate 22 corresponds to the inner wall of the housing.

[0052] Next, the case where the holding member 50 is attached to the first hole 29a will be described. As shown by the two-dot chain line in Figure 11, the first locking portion 53 and the insertion portion 52 are inserted into the first hole 29a with the first locking portion 53 tilted toward the inside of the cabinet body 10, and then the holding portion 51 is returned to a horizontal position. As a result, the vertically raised first locking portion 53 abuts against the inner peripheral edge 29b1 of the second hole 29b, and the bent portion 54a of the second locking portion 54 abuts against the outer surface 22a of the right side plate 22. In this way, as shown by the solid line in Figure 11, the holding member 50 is attached to the cabinet body 10 with the first locking portion 53 locked to the inner peripheral edge 29b1 of the second hole 29b and the second locking portion 54 locked to the outer surface 22a of the right side plate 22.

[0053] On the other hand, when removing the holding member 50, the holding portion 51 is tilted obliquely so as to approach the outer surface 22a of the right side plate 22, thereby separating the first locking portion 53 from the inner peripheral edge 29b1 of the second hole 29b and separating the second locking portion 54 from the outer surface 22a of the right side plate 22, and then the first locking portion 53 and the insertion portion 52 are pulled out of the first hole 29a. This allows the holding member 50 to be easily removed from the cabinet main body 10.

[0054] As described above, according to the projection system 1 of this embodiment, the holding portion 51 can be easily attached to and detached from the cabinet body 10.

[0055] 5 and 6, the wiring holes 17 are holes for cabling. Five or six wiring holes 17 are arranged on the rear surface 3b side of the projector 3. In this way, since the base 21 is provided with multiple wiring holes 17 on the rear surface 3b side of the projector 3, wiring work is easy and beautiful cabling is possible.

[0056] The supporters 16 are provided at the four corners of the top surface of the base 21 in positions that abut against the inside of the upper assembly 30. The supporters 16 are supports that support the load when the upper assembly 30 is pushed. Therefore, even when the user pushes the upper assembly 30, the entire projection cabinet 2, including the lower assembly 20, can be moved without difficulty.

[0057] 6, a mounting hole 22c is provided in the right side plate 22. The AC inlet 9 is mounted in the mounting hole 22c. The AC inlet 9 is a connector for connecting an AC cable.

[0058] As shown in FIG. 5, the upper assembly 30 has a rectangular parallelepiped shape surrounded on five sides except the bottom by a top plate 35, a right plate 36, a left plate 37, a front plate 38, and a back plate 39.

[0059] The upper assembly 30 is fixed to the upper surface of the base 21 . An operation panel 4, a web camera 5, a controller 6, and a correction unit 7 are provided on the top surface of the top panel 35. An AV input port 8 is provided on the right surface of the right side panel 36.

[0060] A projection opening 31 is provided in a top plate 35 that forms the top surface of the upper assembly 30. The projection opening 31 is an opening for projection light Lp of the projector 3. As described above, the projection light Lp emitted from the projection light source unit 3p passes through the projection opening 31 and is displayed on the wall surface W, which serves as a projection surface. As shown in FIG. 4, the projection opening 31 exposes the projection light source unit 3p of the projector 3 in a plan view.

[0061] 7, the notch 33 provided in the right side plate 36 is an opening for exhausting the projector 3, and is provided at a position corresponding to the exhaust port 3e on the right side surface of the projector 3. Also, as shown in FIG. 8, the notch 34 provided in the left side plate 37 is an opening for exhausting the projector 3, and is provided at a position corresponding to the exhaust port 3e on the left side surface of the projector 3. In other words, the notch 34 can be said to be an opening that is arranged according to the function of the projector 3. In this embodiment, the notches 33 and 34 are examples of first openings.

[0062] The cutouts 33 and 34 allow the projector 3 to easily discharge the air exhausted from the projector 3 to the outside of the projection cabinet 2 via the cutouts 33 and 34. The cutouts 33 and / or the cutouts 34 may be through holes, or may be configured with a plurality of through holes or slits formed by punching or slitting.

[0063] 7, the opening 32 provided in the right side panel 36 is an opening for adjusting the focus lever of the projector 3, and is provided at a position corresponding to the focus lever of the projector 3. By providing the opening 32, the user can easily access the focus lever of the projector 3 and adjust the focus of the projection image P. Therefore, according to the projection cabinet 2 of this embodiment, the operability of the projector 3 is prevented from being impaired. In other words, the opening 32 is an opening that is arranged according to the function of the projector 3. In this embodiment, the opening 32 is an example of a first opening.

[0064] As shown in FIG. 6, the upper assembly 30 has mounting holes 35h and 36c. Mounting holes 35h are provided in top plate 35. Web camera 5 is fixed to top plate 35 using mounting holes 35h. A web camera is a device for video conferencing that includes a camera, a microphone, and a speaker.

[0065] The mounting hole 36c is provided in the right side plate 36. The AV input port 8 is attached to the mounting hole 36c. The AV input port 8 is configured from an HDMI (registered trademark) (High Definition Multimedia Interface) connector, a USB (Universal Serial Bus) connector, or the like.

[0066] 8, the power supply port 11 is attached to the left side plate 37. The power supply port 11 is attached using a mounting hole (not shown). The power supply port 11 is a port for supplying power via USB.

[0067] 8, the back panel 39 is attached to the top panel 35 so as to be able to open and close freely. A user can open the back panel 39 by using a notch 39h in the back panel 39. By opening the back panel 39, a large opening can be provided on the back surface of the upper assembly 30. A user can use this opening to easily perform maintenance on the projector 3 and wiring work using the wiring holes 17.

[0068] Fig. 12 is a plan view of the operation panel 4. As shown in Fig. 12, the operation panel 4 has operation buttons 41, 42a, 42b, 43, 44, and 45 for controlling the projector 3 and / or the speaker 12. In this embodiment, the operation buttons 41, 42a, 42b, 43, 44, and 45 are examples of controls.

[0069] The operation buttons 41, 42a, 42b, 43, 44, and 45 are operation buttons corresponding to five types of functions: power, volume adjustment, mute, video source switching, and automatic adjustment. In this embodiment, the above-mentioned five types of functions are selected from the viewpoint of frequency of use.

[0070] The power supply includes a function to turn on and off the power supply of the projector 3 and the speaker 12, and one operation button 41 is provided corresponding to these two functions. The operation button 41 is a power button.

[0071] Clicking the operation button 41 turns on the power. Specifically, the projector 3 and the speaker 12 transition from a standby state to an active state. Pressing and holding the operation button 41 turns off the power. Specifically, the projector 3 and the speaker 12 transition from an active state to a standby state.

[0072] The volume adjustment includes a function to increase the volume of the speaker 12 by one unit, a function to decrease the volume by one unit, a function to continuously increase the volume, and a function to continuously decrease the volume, and two operation buttons 42 are provided corresponding to these four functions. Operation button 42a is a volume UP button, and operation button 42b is a volume DOWN button.

[0073] Clicking the operation button 42a increases the volume of the projector 3 and the speaker 12 by one unit. Pressing and holding the operation button 42a increases the volume continuously. Clicking the operation button 42b decreases the volume by one unit. Pressing and holding the operation button 42b decreases the volume continuously.

[0074] The mute function includes a function to mute the projector 3 and the speaker 12 and a function to cancel the mute state, and one operation button 43 is provided corresponding to these two functions. The operation button 43 is a mute button. Muting is performed by clicking the operation button 43. In the muted state, clicking the operation button 43 cancels the muted state.

[0075] The video source switching is a function for switching the video source of the projector 3, and one operation button 44 is provided to correspond to this function. The operation button 44 is a video source switching button.

[0076] Clicking the operation button 44 switches the video source. Specifically, the content of the displayed projection image P is switched. If the projector 3 has multiple input terminals for video sources, the video source is cyclically switched each time the operation button 44 is clicked.

[0077] The automatic adjustment is a function for adjusting the angle of view of the projector 3 to a rectangle, and one operation button 45 is provided in correspondence with this function. The operation button 45 is an automatic adjustment button. Clicking the operation button 45 starts the angle of view adjustment, and when the angle of view adjustment is completed, the system returns to the start-up state.

[0078] The operation panel 4 may be a touch panel. In this case, various icons for operation are displayed on the display screen as operation buttons 41, 42a, 42b, 43, 44, and 45. The user can perform operations related to the five types of functions described above by tapping or pressing and holding an icon.

[0079] It is preferable that the number of types of functions that can be operated on the operation panel 4 be between one and five. By limiting the number of types of functions that can be operated on the operation panel 4 to between one and five, simple and intuitive operation becomes possible.

[0080] If the number of functions that can be operated on the operation panel 4 is limited to four or less, the necessary functions can be selected from the five functions described above: power, volume adjustment, mute, video source switching, and automatic adjustment.Functions that can be operated on the operation panel 4 other than the five functions described above may also be selected.

[0081] Although multiple functions are assigned to each of operation buttons 41, 42a, 42b, 43, 44, and 45, only one type of function can be operated by each of operation buttons 41, 42a, 42b, 43, 44, and 45. For example, operation button 41 is assigned two functions, one to turn the power on and one to turn it off, but both are functions related to the power supply, and there is only one type of function. In this way, by allocating only one type of function to each of the operation buttons 41, 42a, 42b, 43, 44, and 45, a simple configuration can be achieved.

[0082] 13 is a block diagram showing the configuration of the controller 6. The controller 6 has a CUP (Central Processing Unit) 61, a digital I / O (Input / Output) port 62, a plurality of I / Fs (Interfaces) 63a, 63b, and 63c, and a digital I / O port 64.

[0083] The operation panel 4 is connected to the digital I / O port 62 via a cable. The projector 3 is connected to the I / F 63a, and the speaker 12 is connected to the I / F 63b. Other devices 18 may be connected to the I / F 63c. The correction unit 7 is connected to the digital I / O port 64.

[0084] The CPU 61 controls the projector 3 and / or the speaker 12 based on an operation signal from the operation panel 4. The correction unit 7 has sensors such as an illuminance sensor, and the CPU 61 corrects the projection brightness of the projector 3 to an appropriate value based on a signal from the correction unit 7.

[0085] FIG. 14 is a diagram showing an example of cabling of the projection cabinet 2. As shown in FIG. In the projection cabinet 2 of this embodiment, in addition to the projector 3, the cabinet body 10 is packaged with an operation panel 4, a web camera 5, a controller 6, a correction unit 7, an AV input port 8, an AC inlet 9, a power supply port 11, a speaker 12, an internal video IF 13, and an internal power tap 14. The projection cabinet 2 is stored pre-cabled and ready for immediate use as shown in FIG.

[0086] Next, an example of a use case of the projection cabinet 2 will be described. The user moves the projection cabinet 2 to the conference room and installs the projection cabinet 2 at a predetermined projection position. At this time, the user can easily install the projection cabinet 2 at the predetermined projection position by simply abutting the protrusion 21p of the projection cabinet 2 against the wall surface W of the conference room.

[0087] The user connects a power cable to the AC inlet 9 of the projection cabinet 2, and then connects the power cable to the outlet 72. The user also connects the user's output device 100 to the AV input port 8. The user clicks the operation button 41 on the operation panel 4 to start up the projector 3 and the speaker 12 .

[0088] The user clicks the operation button 45 to adjust the angle of view of the projector 3 . The user operates the operation button 42a or the operation button 42b to adjust the volume. If the video source is not the desired source, the user operates the operation button 44 to change to the desired source.

[0089] When the user has finished using the projection cabinet 2, he or she clicks the operation button 41 to turn off the power to the projector 3 and the speaker 12. The user removes the power cable and the user's output device 100 from the projection cabinet 2 and puts the projection cabinet 2 away.

[0090] As described above, the projection system 1 of this embodiment includes the projector 3 that emits projection light Lp as a projection image to be projected onto the wall surface W, which is the projection surface, the projection cabinet 2 that houses the projector 3, and the holding member 50 on which the output device 100 is placed. The projection cabinet 2 includes the cabinet main body 10 that has the projection opening 31 arranged according to the structure of the projector 3 and the first hole 29a through which the user grips the projection cabinet 2, and the lower assembly 20 that is arranged on the cabinet main body 10 and on which the projector 3 is installed. The holding member 50 is detachably attached to the projection opening 31.

[0091] According to the projection system 1 of this embodiment, the holding member 50 can be easily attached to the cabinet main body 10 by using the projection port 31. In the projection system 1 of this embodiment, the output device 100 placed on the holding member 50 can be directly accessed and operated, thereby improving the operability of the system for the user. Furthermore, in the projection system 1 of this embodiment, the projection openings 31 arranged according to the structure of the projector 3 are also used to attach the holding members 50, so there is no need to form separate openings in the cabinet main body 10 for attaching the holding members 50. Therefore, the projection system 1 of this embodiment can prevent the design appearance of the cabinet main body 10 from being impaired by an increase in the number of openings. Furthermore, in the projection system 1 of this embodiment, an object can be placed on the holding member 50 even when an object cannot be placed on the upper assembly 30. Furthermore, in the projection system 1 of this embodiment, the holding member 50 is configured to be detachable from the cabinet main body 10, and therefore the size of the cabinet main body 10 can be made smaller than in a configuration in which the holding member is used by being pulled out from inside the cabinet main body, for example.

[0092] Furthermore, in the projection system 1 of this embodiment, the projector 3 is positioned at a predetermined position where it displays the projection image P on the wall surface W by abutting the protrusion 21p against the wall surface W. Therefore, the reliability of the alignment accuracy can be improved. Therefore, the reliability of the alignment accuracy can be improved.

[0093] Furthermore, in the projection cabinet 2 of this embodiment, the lower assembly 20 as an installation part has a base 21 on which the projector 3 is placed, and the protrusion 21p as a protruding part is part of the base 21. Note that the protruding part, of which the protrusion 21p is an example, is not limited to being configured as part of the base 21, and may be configured, for example, by attaching resin, rubber, or the like to the tip of a protrusion extending from the base 21. In other words, the protruding part may be configured to include the protrusion and resin, rubber, or the like. In this way, the protrusion 21p is a part of the base 21. In other words, the base 21 is the only part provided between the wall surface W as the projection surface and the projector 3. This reduces the possibility of manufacturing variations and assembly errors, and also reduces the possibility of rattles occurring due to use and aging.

[0094] Furthermore, in the projection cabinet 2 of this embodiment, the base 21 has a through hole 21a arranged at a position corresponding to the air intake port provided in the projector 3, and the cabinet main body 10 serving as the housing has a notch 33 arranged at a position corresponding to the air exhaust port 3e provided in the side surface that intersects with the bottom surface of the projector 3. In this way, the projection cabinet 2 of this embodiment has openings at positions corresponding to the intake and exhaust ports of the projector 3. Therefore, the projection cabinet 2 can maintain good intake and exhaust for the projector 3 housed therein, allowing the projector 3 to operate stably.

[0095] In addition, the projection cabinet 2 of this embodiment further includes a handle 29 consisting of a first hole 29a provided in the cabinet main body 10 as a housing and a second hole 29b provided in the base 21 and communicating with the first hole 29a via the storage space 20s as a space within the cabinet main body 10. In this way, the projection cabinet 2 has the handle 29 consisting of the first hole 29a and the second hole 29b, which makes it easy to transport the projection cabinet 2.

[0096] In the projection cabinet 2 of this embodiment, the base 21 has a fixing portion 21c for fixing the projector 3. Therefore, it is possible to prevent the installation position of the projector 3 from being displaced due to transportation of the projection cabinet 2 or the like.

[0097] In addition, the projection cabinet 2 of this embodiment is provided with an operation panel 4 that is arranged in a cabinet main body 10 as a housing and has operation buttons 41, 42a, 42b, 43, 44, and 45 as multiple operators, and the types of functions operated by the multiple operation buttons 41, 42a, 42b, 43, 44, and 45 are one to five in number. Therefore, the user can operate the operation panel 4 simply and intuitively.

[0098] In the projection cabinet 2 of this embodiment, the type of function operated by each of the operation buttons 41, 42a, 42b, 43, 44, and 45 serving as a plurality of operators is one type. In this way, by assigning only one type of function to each of the operation buttons 41, 42a, 42b, 43, 44, and 45, the operation panel 4 can have a simple configuration.

[0099] In the first embodiment, the first hole 29a is used as the opening for attaching the holding member 50, but the opening for attaching the holding member 50 is not limited to this. For example, the opening 32, the notches 33, and the notches 34 may be used as the opening for attaching the holding member 50.

[0100] (Second embodiment) Next, a second embodiment of the projection system will be described with reference to the drawings. This embodiment differs from the first embodiment in the mounting position of the holding member. Below, the configuration of the holding member and the configuration of the opening portion where the holding member is mounted will be mainly described. Note that the same reference numerals will be used to designate the same configuration and members as the first embodiment, and detailed description will be omitted.

[0101] Fig. 15A is a perspective view showing a schematic configuration of a holding member 250 of the second embodiment. Fig. 15B is a cross-sectional view showing a state in which the holding member 250 is attached to the cabinet main body 10. Note that Fig. 15A also shows the peripheral configuration of the cabinet main body 10 to which the holding member 250 is attached.

[0102] 15A and 15B, the holding member 250 of this embodiment is detachably attached to a slit portion 233 provided in the right side plate 36 of the upper assembly 30. The slit portion 233 has a plurality of slits 233a that penetrate the right side plate 36. The slit portion 233 is an exhaust port through which exhaust air passes that is exhausted after cooling a heat source, such as a light source, that is arranged inside the projector 3 housed in the cabinet body 10. In other words, the slit portion 233 is an opening that is arranged according to the function of the projector 3, and in this embodiment, the slit portion 233 is an example of a first opening. In the case of this embodiment, the slit portion 233 consisting of a plurality of slits 233a is used as the exhaust port instead of one large opening, so that it is possible to prevent dust and foreign matter from entering the cabinet body 10.

[0103] Holding member 250 has holding portion 251, insertion portion 252, first locking portion 253, and second locking portion 254. Holding member 250 is made of a single metal plate that has been bent. Note that a through hole that penetrates holding surface 251a of holding portion 251 may be provided as necessary.

[0104] Specifically, the holder 251 is made of a rectangular plate material and has a holding surface 251a on which the output device 100 is placed. The second locking portion 254 is made of a generally trapezoidal plate material with portions connected to both ends of the holding portion 251 in the X-axis direction bent toward the -Z side. The second locking portion 254 is provided on the -Z side of the holding surface 251a, and abuts against the outer wall 36b of the right side plate 36 on the base side of the insertion portion 252. The -Z side portion of the side surface 254a of the second locking portion 254 abuts against the outer wall 36b of the right side plate 36. Here, the abutment between the second locking portion 254 and the outer wall 36b does not mean that the second locking portion 254 and the outer wall 36b are in complete contact when the retaining member 250 is attached to the slit portion 233, but also includes a state in which the second locking portion 254 and the outer wall 36b are arranged opposite each other with a predetermined gap between them.

[0105] The insertion portion 252 extends from the holding portion 251 in the Y-axis direction along the holding surface 251a, and is inserted into one of the slits 233a of the slit portion 233. The insertion portion 252 is composed of a convex piece that protrudes in the Y-axis direction from a side surface 254a that forms the lower base of the trapezoidal second locking portion 254.

[0106] The first locking portion 253 extends from the tip of the insertion portion 252 along the Z-axis direction intersecting with the holding surface 251a, and abuts against the inner wall a of the right side plate . Here, the abutment between the first locking portion 253 and the inner wall 36a does not necessarily mean that the first locking portion 253 and the inner wall 36a are in complete contact when the retaining member 250 is attached to the slit portion 233, but also includes a state in which the first locking portion 253 and the inner wall 36a are positioned opposite each other with a predetermined gap between them.

[0107] In the present embodiment, chamfering is applied to the -Z side end of insertion portion 252 and the +Z side end of first locking portion 253. This suppresses interference between first locking portion 253 and insertion portion 252 and the opening end of slit 233a, thereby improving the attachability of holding member 250 to slit 233a. In this embodiment, the inner wall 36a of the right side plate 36 corresponds to the inner wall of the housing, and the outer wall 36b of the right side plate 36 corresponds to the outer wall of the housing.

[0108] Next, the case where the holding member 250 is attached to the slit portion 233 will be described. As shown by the two-dot chain line in Figure 15B, the first locking portion 253 and the insertion portion 252 are inserted into any of the slits 233a with the holding surface 251a of the holding portion 251 tilted toward the inside of the cabinet body 10, and then the holding portion 251 is returned to a horizontal position. As a result, the first locking portion 253, which has risen vertically, comes into contact with the inner wall 36a of the right side plate 36, and the side surface 254a of the second locking portion 254 comes into contact with the outer wall 36b of the right side plate 36. In this way, as shown by the solid line in Figure 15B, the first locking portion 253 locks with the inner wall 36a of the right side plate 36, and the second locking portion 254 locks with the outer wall 36b of the right side plate 36, so that the holding member 250 is attached to the upper assembly 30.

[0109] On the other hand, when removing the holding member 250, the holding portion 251 is tilted obliquely so as to approach the outer wall 36b of the right side plate 36, thereby separating the first locking portion 253 from the inner wall 36a of the right side plate 36 and separating the second locking portion 254 from the outer wall 36b of the right side plate 36, and then the first locking portion 253 and the insertion portion 252 are pulled out of the slit 233a. This makes it possible to easily remove the holding member 250 from the upper assembly 30.

[0110] According to the projection system of this embodiment, the holding member 250 can be easily attached to the cabinet main body 10 by utilizing the slit portion 233 provided corresponding to the exhaust port of the projector 3. Therefore, in the projection system of this embodiment, as in the projection system 1 of the first embodiment, the operability of the system can be improved without impairing the aesthetic appearance of the cabinet main body 10.

[0111] In this embodiment, the slit portion 233 is an exhaust port, but the slit portion 233 may correspond to an intake port through which air passes to cool a heat source disposed inside the projector. In this case, a configuration may be adopted in which the holding member 250 is detachable from the slit portion that constitutes the intake port. With this configuration, the holding member 250 can be easily attached to the cabinet main body 10 by utilizing a slit portion provided corresponding to the intake port of the projector, thereby improving the operability of the system without impairing the aesthetic appearance of the cabinet main body 10.

[0112] (Third embodiment) Next, a third embodiment of the projection system will be described with reference to the drawings. This embodiment differs from the first embodiment in the mounting position of the holding member. The following mainly describes the configuration of the holding member. Note that the same reference numerals are used for configurations and members common to the first embodiment, and detailed descriptions will be omitted.

[0113] Fig. 16A is a perspective view showing a schematic configuration of a holding member 350 of the third embodiment. Fig. 16B is a cross-sectional view showing a state in which the holding member 350 is attached to the cabinet main body 10. Fig. 16A also shows the peripheral configuration of the cabinet main body 10 to which the holding member 350 is attached.

[0114] 16A and 16B, the holding member 350 of this embodiment is detachably attached to the projection port 31 provided in the top plate 35 that forms the top surface of the upper assembly 30. The holding member 350 is attached to the inner peripheral edge 31a of the projection port 31 on the side when the wall surface W, which is the projection surface, is facing forward. In this embodiment, the holding member 350 is attached to the right side (+Y side) of the inner peripheral edge 31a of the projection port 31.

[0115] The holding member 350 has a holding portion 351, a first locking portion 352, a second locking portion 353, and a third locking portion 354. The holding member 350 is made of a single bent metal plate. The holding portion 351 has a holding surface 351a on which the output device 100 is placed and held, and a rectangular through-hole 350K that penetrates the holding surface 351a. Note that the through-hole 350K may be omitted if necessary.

[0116] The first locking portion 352 is formed of a plate member that extends from the holding portion 351 in the Y-axis direction along the holding surface 351a and abuts against the outer wall 35a of the top plate 35 of the upper assembly 30. In this embodiment, the outer wall 35a of the top plate 35 is an example of the outer wall of the housing. The second locking portion 353 extends from the first locking portion 352 along the Z-axis direction intersecting with the holding surface 351 a, and is made of a plate material bent into a U shape that abuts against the inner peripheral edge 31 a of the projection port 31 . The third locking portion 354 is configured from a plate member that extends from the second locking portion 353 in the Y-axis direction along the holding surface 351a and abuts against the inner wall 35b of the top plate 35 of the upper assembly 30. In this embodiment, the inner wall 35b of the top plate 35 is an example of the inner wall of the housing.

[0117] Next, the case where the holding member 350 is attached to the projection port 31 will be described. 16B, with the third locking portion 354 positioned inside the opening edge of the projection port 31, the holding member 350 is placed on the top plate 35, and the first locking portion 352 is brought into contact with the outer wall 35a of the top plate 35. Then, by moving the holding member 350 to the outside of the projection port 31, the second locking portion 353 comes into contact with the inner peripheral edge 31a of the projection port 31, and further the third locking portion 354 comes into contact with the inner wall 35b of the top plate 35. In this way, as shown by the solid lines in Figure 16B, the holding member 350 is attached to the cabinet main body 10 by the first locking portion 352 locking to the outer wall 35a of the top plate 35, the second locking portion 353 locking to the inner peripheral edge 31a of the projection port 31, and the third locking portion 354 locking to the inner wall 35b of the top plate 35.

[0118] On the other hand, when removing the holding member 350, the holding portion 351 is slid toward the inside of the projection port 31 to separate the second locking portion 353 from the inner peripheral edge 31a of the projection port 31 and the third locking portion 354 from the inner wall 35b of the top plate 35, and then the holding member 350 is lifted horizontally upward. This allows the holding member 350 to be easily removed from the cabinet main body 10.

[0119] According to the projection system of this embodiment, the holding member 350 can be easily attached to the cabinet main body 10 by utilizing the projection port 31 provided corresponding to the projection light Lp of the projector 3. Therefore, in the projection system of this embodiment, as in the projection systems of the above embodiments, the operability of the system can be improved without impairing the aesthetic appearance of the cabinet main body 10.

[0120] The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0121] In addition, the specific descriptions of the shape, number, arrangement, material, etc. of each component of the light source device and projector are not limited to the above-described embodiments and can be changed as appropriate.

[0122] A summary of this disclosure is provided below. (Appendix 1) A projection system comprising: a projector that emits light as a projection image to be projected onto a projection surface; a projection cabinet that houses the projector; and a holding member on which an object is placed, the projection cabinet includes a housing having a first opening arranged in accordance with a structure of the projector and a second opening for a user to hold the projection cabinet, and an installation section arranged in the housing and on which the projector is installed; The holding member is detachably attached to at least one of the first opening and the second opening. Projection system.

[0123] With this configuration of the projection system, the holding member can be easily attached to the housing by using at least one of the first opening arranged according to the structure of the projector and the second opening provided for gripping the projection cabinet. With this projection system, objects placed on the holding member, such as output devices that output signals to the projector, can be directly accessed, improving the operability of the system for users. Furthermore, in this projection system, the first or second opening is also used to attach the holding member, so there is no need to form a separate opening in the cabinet for attaching the holding member, which prevents the design appearance of the projection cabinet from being impaired by an increase in the number of openings. Furthermore, this projection system allows an object to be placed on the holding member even when the object cannot be placed on the housing. Furthermore, because the holding member is configured to be detachable from the housing, the size of the housing can be made smaller than in a configuration where the holding member is pulled out from inside the housing.

[0124] (Appendix 2) the first opening is an air intake port through which air passes to be taken into the projector and to cool a heat source disposed inside the projector, The holding member is detachably attached to the air intake port. 10. The projection system of claim 1.

[0125] With this configuration, the holding member can be easily attached to the housing by utilizing the first opening provided corresponding to the air intake of the projector, thereby improving the operability of the system without compromising the aesthetic appearance of the projection cabinet.

[0126] (Appendix 3) the first opening is an exhaust port through which exhaust gas passes after cooling a heat source disposed inside the projector, and is discharged; The holding member is detachably attached to the exhaust port. 10. The projection system of claim 1.

[0127] According to this configuration, the holding member can be easily attached to the housing by utilizing the first opening provided corresponding to the exhaust port of the projector, thereby improving the operability of the system without compromising the aesthetic appearance of the projection cabinet.

[0128] (Appendix 4) The holding member is a holding portion having a holding surface on which the object is placed and held; an insertion portion extending from the holding portion along a direction along the holding surface and inserted into at least one of the first opening and the second opening; a first locking portion extending from the insertion portion along a direction intersecting the holding surface and abutting against an inner wall of the housing; a second locking portion provided on the holding surface on the opposite side to the side from which the first locking portion extends and abutting against an outer wall of the housing at a base side of the insertion portion; having 4. The projection system of claim 2 or 3.

[0129] According to this configuration, the first locking portion locks onto the inner wall of the housing, and the second locking portion locks onto the outer wall of the housing, allowing the holding member with an object placed on the holding surface to be easily and stably attached to the intake or exhaust port provided in the housing.

[0130] (Appendix 5) The holding member has a through hole provided in the holding portion and penetrating the holding surface. 10. The projection system of claim 4.

[0131] According to this configuration, by exposing the bottom side of the object placed on the holding surface, it is possible to pass, for example, a cable drawn from the object through the through hole. In addition, the through hole can improve the heat dissipation of the object.

[0132] (Appendix 6) At least one of the first opening and the second opening to which the holding member is attached is disposed on a side of the housing with the projection surface facing forward. 4. The projection system of any one of claims 1 to 3.

[0133] According to this configuration, when the holding member is attached, the holding member is positioned to the side of the projection cabinet, thereby preventing problems such as the holding member being placed between the projection surface and the projection cabinet, or between the projection cabinet and the user, and becoming a hindrance.

[0134] (Appendix 7) The holding member is made of a single metal plate that has been bent. 7. The projection system of any one of claims 1 to 6.

[0135] This configuration allows the weight and cost of the holding member to be reduced.

[0136] (Appendix 8) the first opening is a projection opening through which light emitted from the projector passes, The holding member is detachably attached to the projection port. 10. The projection system of claim 1.

[0137] With this configuration, the holding member can be easily attached to the housing by utilizing the first opening provided corresponding to the projection port of the projector, thereby improving the operability of the system without compromising the aesthetic appearance of the projection cabinet.

[0138] (Appendix 9) The holding member is a holding portion having a holding surface on which the object is placed; a first locking portion extending from the holding portion along a direction along the holding surface and abutting against an outer wall of the housing; a second locking portion extending from the first locking portion along a direction intersecting the holding surface and abutting against an inner peripheral edge of the projection port; a third locking portion extending from the second locking portion along a direction along the holding surface and abutting against an inner wall of the housing; having 9. The projection system of claim 8.

[0139] According to this configuration, the first locking portion locks onto the outer wall of the housing, the second locking portion locks onto the inner peripheral edge of the projection port, and the third locking portion locks onto the inner wall of the housing, so that the holding member with an object placed on the holding surface can be easily and stably attached to the projection port provided in the housing.

[0140] (Appendix 10) The holding member has a through hole provided in the holding portion and penetrating the holding surface. 10. The projection system of claim 9.

[0141] According to this configuration, by exposing the bottom side of the object placed on the holding surface, it is possible to pass, for example, a cable drawn from the object through the through hole. In addition, the through hole can improve the heat dissipation of the object.

[0142] (Appendix 11) the holding member is attached to an inner peripheral edge of the projection port on a side thereof when the projection surface is facing forward, 11. The projection system of any one of claims 8 to 10.

[0143] According to this configuration, when the holding member is attached, the holding member is positioned to the side of the projection cabinet, thereby preventing problems such as the holding member being placed between the projection surface and the projection cabinet, or between the projection cabinet and the user, and becoming a hindrance.

[0144] (Appendix 12) The holding member is made of a single metal plate that has been bent. 11. The projection system of any one of claims 8 to 10.

[0145] This configuration allows the weight and cost of the holding member to be reduced. [Explanation of symbols]

[0146] 1...Projection system, 2...Projection cabinet, 3...Projector, 10...Cabinet body (housing), 20...Lower assembly (Installation portion), 29a...First hole (Second opening), 29b1...Inner peripheral edge (Inner wall of housing), 31...Projection port (First opening), 32...Opening (First opening), 33, 34...Notch (First opening), 35a...Outer wall (Outer wall of housing), 35b...Inner wall (Inner wall of housing), 36a...Inner wall (Housing a...inner wall of housing), 36b...outer wall (outer wall of housing), 100...output device (object), 233...slit portion (first opening), 50, 250, 350...holding member, 50K, 350K...through hole, 51, 251, 351...holding portion, 51a, 251a, 351a...holding surface, 52, 252...insertion portion, 53, 253, 352...first locking portion, 54, 254, 353...second locking portion, 354...third locking portion, P...projected image, W...wall surface (projection surface).

Claims

1. A projection system comprising: a projector that emits light as a projection image to be projected onto a projection surface; a projection cabinet that houses the projector; and a holding member on which an object is placed, the projection cabinet includes a housing having a first opening arranged in accordance with a structure of the projector and a second opening for a user to hold the projection cabinet, and an installation section arranged in the housing and on which the projector is installed, The holding member is detachably attached to at least one of the first opening and the second opening. Projection system.

2. the first opening is an air intake port through which air passes to be taken into the projector and to cool a heat source disposed inside the projector, The holding member is detachably attached to the air intake port. The projection system of claim 1 .

3. the first opening is an exhaust port through which exhaust gas passes after cooling a heat source disposed inside the projector, and is discharged; The holding member is detachably attached to the exhaust port. The projection system of claim 1 .

4. The holding member is a holding portion having a holding surface on which the object is placed and held; an insertion portion extending from the holding portion along a direction along the holding surface and inserted into at least one of the first opening and the second opening; a first locking portion extending from the insertion portion along a direction intersecting the holding surface and abutting against an inner wall of the housing; a second locking portion provided on the holding surface on the opposite side to the side from which the first locking portion extends, the second locking portion abutting against an outer wall of the housing at a base side of the insertion portion; having 4. The projection system according to claim 2 or claim 3.

5. The holding member has a through hole provided in the holding portion and penetrating the holding surface.

5. The projection system of claim 4.

6. At least one of the first opening and the second opening to which the holding member is attached is disposed on a side of the housing with the projection surface facing forward. A projection system according to any one of claims 1 to 3.

7. The holding member is made of a single metal plate that has been bent. A projection system according to any one of claims 1 to 3.

8. the first opening is a projection opening through which light emitted from the projector passes, The holding member is detachably attached to the projection port. The projection system of claim 1 .

9. The holding member is a holding portion having a holding surface on which the object is placed; a first engaging portion extending from the holding portion along a direction along the holding surface and abutting against an outer wall of the housing; a second engaging portion extending from the first engaging portion along a direction intersecting the holding surface and abutting against an inner peripheral edge of the projection port; a third locking portion extending from the second locking portion along a direction along the holding surface and abutting against an inner wall of the housing; having The projection system of claim 8 .

10. The holding member has a through hole provided in the holding portion and penetrating the holding surface. The projection system of claim 9 .

11. the holding member is attached to an inner peripheral edge of the projection port on a side thereof when the projection surface is facing forward, 11. The projection system of any one of claims 8 to 10.

12. The holding member is made of a single metal plate that has been bent.

11. The projection system of any one of claims 8 to 10.

Images