Projection system

Abstract

The utility model provides a projection system, which is used for improving the operability when a projector is rotated in a structure for supporting the projector to be rotatable. The projection system includes: a projector; a holder that supports the projector; and a connection part which is connected to the projector and the holder so as to connect the projector and the holder, the projector having a projection lens and being rotatable relative to the holder about a rotation axis intersecting an optical axis of the projection lens, the holder including: a holder frame which is connected to the connection part; and a holder base which is connected to the holder frame, supports the weight of the projector and the holder frame in the installed state of the projection system, and is provided with an operation unit capable of operating the projector.

Description

Technical Field

[0001] This utility model relates to a projection system. Background Technology

[0002] Conventionally, projectors that project images have a projector support platform that rotatably supports the projector (see, for example, Patent Document 1). Such projectors have the advantage that the user can arbitrarily adjust the direction of the image light projected by the projector.

[0003] Patent Document 1: Japanese Patent Application Publication No. 2016-027369

[0004] Typically, projectors are equipped with user-operated control buttons and connection terminals for cables that provide images to the projector. As in Patent Document 1, in a structure where the control buttons are located on the main body of the projector, which is rotatably supported on a support platform, the user must be careful not to cause the projector to rotate due to the force applied to the control buttons. Furthermore, in structures where the projector body has connection terminals, the cables connected to these terminals can easily become obstructions when the projector is rotated; therefore, the user must be mindful of the cables while rotating the projector. Utility Model Content

[0005] One aspect of this disclosure is a projection system comprising: a projector; a bracket supporting the projector; and a connecting portion connected to both the projector and the bracket, thereby connecting the projector and the bracket. The projector has a projection lens and is rotatable relative to the bracket about a rotation axis intersecting the optical axis of the projection lens. The bracket includes: a bracket frame connected to the connecting portion; and a bracket base connected to the bracket frame. In the configured state of the projection system, the bracket base supports the weight of the projector and the bracket frame, and an operating portion for operating the projector is provided on the bracket base.

[0006] One aspect of the projector disclosed herein includes: a projector; a stand supporting the projector; a connecting portion connected to the projector and the stand, connecting the projector and the stand; and a wiring electrically connected to a first operating board of the projector. The projector has a projection lens and is rotatable relative to the stand about a rotation axis intersecting the optical axis of the projection lens. The stand includes: a stand frame connected to the connecting portion; a stand base connected to the stand and supporting the weight of the projector and the stand in the projection system setup state; an operating portion for operating the projector is provided on the stand base; the wiring extends from the interior of the projector through the interior of the stand frame to a second operating board disposed inside the stand base; the stand base has a first connection terminal capable of connecting to a connection cable transmitting at least one of an image and sound, the first connection terminal being connected to the wiring via the second operating board. Attached Figure Description

[0007] Figure 1 This is a three-dimensional view of the projection system of Implementation Method 1.

[0008] Figure 2 It is a 3D diagram of the projection system.

[0009] Figure 3 It is a top view of the projection system with the projector pointing upwards.

[0010] Figure 4 This is an exploded 3D view of the support base.

[0011] Figure 5 yes Figure 2 VV sectional view.

[0012] Figure 6 It is an exploded 3D view of the support frame.

[0013] Figure 7 yes Figure 1 A schematic diagram of section VII-VII.

[0014] Figure 8 This is a three-dimensional view of the projection system in Implementation Method 2.

[0015] Label Explanation

[0016] 1: Projection system; 10: Projector; 10L: Left side face; 10R: Right side face; 10a: Connecting hole; 11: Projection lens; 12: First operating board; 20: Support; 21: Power wiring; 22: First wiring; 23: Second wiring; 24: Wiring; 30: Support base; 31: Support cover; 31A: Upper plate; 31B: Side plate; 31c: Connecting hole; 32: Guide component; 33: Second operating board; 36: Rotation Turntable; 36a: Guide groove; 37: Rubber foot; 38: Fixing hole; 38A: Hook part; 40: Fixing component; 40a: Round hole; 40b: Engaging hole; 50: Support frame; 50L: First arm; 50R: Second arm; 51: Frame base; 51a: Opening; 52: Frame cover; 54: Hinge cover; 60: Operation button; 61: Connection terminal; 100: Hinge unit; 236: Rotary table; 240: Base; OA: Optical axis. Detailed Implementation

[0017] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. In each drawing, arrows indicate the direction of the projection system 1 in its set state. The symbol UP indicates upward, the symbol FR indicates forward, and the symbol R indicates right. Although not shown, the opposite direction of the symbol UP indicates downward, the opposite direction of the symbol FR indicates rearward, and the opposite direction of the symbol R indicates left. In the description, unless otherwise specified, directions such as front, back, left, right, and up and down are used. Figure 1 The projection system 1 is used as a reference.

[0018] [1. Implementation Method 1]

[0019] [1-1. Structure]

[0020] [1-1-1. Configuration of the projection system]

[0021] Figure 1 This is a perspective view of the projection system 1 using Embodiment 1 of the present disclosure, and is a view of the projection system 1 as a whole viewed from the upper left front. Figure 2 This is a three-dimensional view of projection system 1, viewed from the lower right rear.

[0022] The projection system 1 includes a projector 10 for projecting images and a support 20 for supporting the projector 10.

[0023] The projector 10 has a housing that is approximately rectangular in shape. A projection lens 11 for projecting image light is provided on the front surface of the projector 10. Figure 1 The optical axis OA of the image light projected by the projection lens 11 onto the projection surface is shown. The optical axis OA is the central axis of the projected image, for example, an imaginary axis passing through the optical center of the projection lens 11. Figure 1In the projection, the image from the projector 10 is projected forward, with the optical axis OA horizontally aligned with the mounting surface of the projection system 1. Engagement holes 10a for connecting the support bracket 20 are provided on the right side panel 10R and the left side panel 10L of the projector 10. The right side panel 10R corresponds to an example of the first side panel. The left side panel 10L corresponds to an example of the second side panel.

[0024] The support 20 has a generally disc-shaped support base 30 and a pair of left and right support frames 50 extending rearward and upward from the side of the support base 30. The ends of the support frames 50 are connected to the engagement holes 10a provided on the left and right sides of the projector 10. Thus, the support 20 supports the projector 10 from the left and right sides. The projector 10 is held by the support 20 in a state of floating above the mounting surface.

[0025] Figure 3 This is a top view of the projection system 1 with the projection lens 11 of the projector 10 facing upwards.

[0026] An operation button 60 is formed on the upper surface of the bracket base 30. When the optical axis OA of the projector 10 is perpendicular to the setting plane, the operation button 60 is configured so that it does not overlap with the projector 10 when viewed from above. Furthermore, the operation button 60 is located on the rear side of the bracket base 30. A connection terminal 61 is provided on the side of the bracket base 30. The operation button 60 corresponds to one example of the operation section.

[0027] [1-1-2. Structure of the support]

[0028] Figure 4 This is an exploded perspective view of the support base 30. Figure 5 yes Figure 2 VV sectional view.

[0029] The support base 30 consists of a support cover 31, a rotating platform 36, and a fixing component 40.

[0030] In this embodiment, the support cover 31 is composed of an upper plate portion 31A and a side plate portion 31B. The overall shape of the support cover 31 is a disc shape. The support cover 31 has a thickness capable of accommodating the second operating board 33, etc., which will be described later.

[0031] Inside the support cover 31, there is a guide member 32 and a second operating board 33. The second operating board 33 is provided with a connection terminal 61, which can be electrically connected from the side plate portion 31B to a power supply wiring 21 located outside the support cover 31.

[0032] In this embodiment, the connection terminal 61 is provided with a power terminal, a USB (Universal Serial Bus) terminal, and an HDMI (High-Definition Multimedia Interface) terminal. HDMI is a registered trademark.

[0033] The upper plate 31A forms the upper surface of the support base 30.

[0034] like Figure 4 As shown, a plurality of engagement holes 31c are provided in the center of the upper plate portion 31A. Wood screws and taps can be screwed into the engagement holes 31c.

[0035] A notch 31d is provided in the side plate portion 31B. A bracket frame 50 is inserted into the notch 31d, and the bracket base 30 is fixed to the bracket frame 50 by means of connecting components such as screws or bolts.

[0036] The rotary table 36 is a circular flat plate component with a fixing hole 38 in its center. The outer diameter of the rotary table 36 is approximately the same as the inner diameter of the support cover 31. The rotary table 36 is embedded in the inner side of the support cover 31 and is fixed to the support cover 31, forming the lower surface of the support base 30.

[0037] Multiple rubber feet 37 are provided on the lower surface of the rotary table 36, that is, the surface facing the projection system 1.

[0038] The fixing hole 38 has a diameter that varies along the thickness of the rotary table 36, with the upper diameter being smaller than the lower diameter. That is, the fixing hole 38 is shaped such that the hook portion 38A extends toward the center of the fixing hole 38.

[0039] A guide groove 36a is provided on the upper surface of the rotary table 36. The guide groove 36a engages with the guide member 32 of the support cover 31, and the support base 30 has a rotation structure that allows the support cover 31 to rotate while the rotary table 36 is fixed.

[0040] The fixing member 40 is a flat plate member formed in an annular shape with approximately the same diameter as the fixing hole 38. The fixing member 40 is inserted into the fixing hole 38 from the lower surface side of the rotary table 36 and is fixed to the rotary table 36. The outer diameter of the fixing member 40 is the size that does not pass through the hook portion 38A, so the fixing member 40 can be fixed at the position where it abuts against the hook portion 38A. A circular hole 40a and a plurality of engagement holes 40b are provided in the central part of the fixing member 40.

[0041] The circular hole 40a and the engagement hole 40b are positioned corresponding to the engagement hole 31c of the bracket cover 31. The bracket cover 31 is engaged with the fixing member 40 by inserting screws, bolts, or other engaging components through the engagement hole 31c, the fixing hole 38, and the engagement hole 40b. The hook portion 38A is supported by the fixing member 40, thereby maintaining the rotary table 36 in a clamped state between the bracket cover 31 and the fixing member 40, thus forming the bracket base 30.

[0042] Figure 6This is an exploded 3D view of the support frame 50.

[0043] As described above, the projection system 1 includes a pair of left and right support frames 50. Each support frame 50 is approximately L-shaped when viewed from the front and is hollow. Each support frame 50 includes a first arm 50L and a second arm 50R. The first arm 50L extends from the side of the front surface of the support base 30 to the left and then extends rearward and upward, fitting into a mating hole 10a provided on the left side 10L. The second arm 50R extends from the side of the front surface of the support base 30 to the right and then extends rearward and upward, fitting into a mating hole 10a provided on the right side 10R. The support frames 50 are configured to rotate with the projector 10.

[0044] The support frame 50 has a frame base 51 and a frame cover 52. The frame cover 52 is fixed to the frame base 51. There are no restrictions on the fixing structure between the frame base 51 and the frame cover 52. For example, a structure using bolts, nuts, rivets, or other connecting parts, or a fitting structure such as a boss fitting can be used.

[0045] A rectangular opening 51a with rounded corners is provided at the upper end of the frame base 51. The frame cover 52 is positioned so as not to block the opening 51a when engaged with the frame base 51. A hinge cover 54 is provided outside the projection system 1 in the width direction from the opening 51a, and a hinge unit 100 is arranged inside the width direction. The support frame 50 is rotatably connected to the projector 10 via the hinge unit 100. That is, the projector 10 can be rotated up and down with reference to an imaginary axis of rotation formed with the hinge unit 100 of the left and right support frames 50 as a reference. In this embodiment, the axis of rotation is orthogonal to the optical axis OA of the projection lens 11. The hinge unit 100 corresponds to one example of the connecting part.

[0046] [1-1-3. Wiring Configuration in a Projection System]

[0047] Figure 7 yes Figure 1 The schematic diagram of section VII-VII is an enlarged view showing the main part including the joint between the projector 10 and the support frame 50.

[0048] The projector 10 has a first operating board 12. A first wiring 22 extending from the first operating board 12 of the projector 10 passes through a joint hole 10a on the side of the projector 10 into the bracket frame 50 and is electrically connected to a second wiring 23. The second wiring 23 passes through the bracket frame 50, extends toward the bracket base 30, and is electrically connected to the second operating board 33. The second operating board 33 is electrically connected to the external power wiring 21, HDMI wiring, and USB wiring via a connection terminal 61 provided on the side plate portion 31B of the bracket cover 31. Thus, wiring 24 within the projection system, including the first wiring 22 and the second wiring 23, other than the external power wiring 21, can be wired to the projector 10 without being exposed. The wiring 24 can be centrally arranged on one side of the bracket frame 50 or separately arranged on the first arm 50L and the second arm 50R.

[0049] [1-2. How to use a projection system]

[0050] In the projection system 1, the fixed bracket 20 is able to rotate the projector 10 in the up and down direction.

[0051] If the projector 10 is rotated and an operation button 60 is provided on the projector 10, the user may accidentally rotate the projector 10 when pressing the operation button 60. However, in this disclosure, since the operation button 60 of the projector 10 is provided on the stand 20, the accidental rotation of the projector 10 can be suppressed when the user operates the projector 10 by operating the operation button 60.

[0052] The operation buttons 60 located on the stand base 30 include the power button, keystone correction button, brightness adjustment button, and volume adjustment button for the projector 10. These operation buttons 60 allow users to change the settings corresponding to them during projection on the projector 10.

[0053] These operation buttons 60 are located at the rear of the support base 30. When the optical axis OA is horizontal with the setting surface of the projection system 1, since the projection lens 11 is located on the front surface of the projector 10, the projection light from the projector 10 is suppressed from being projected toward the user when the operation buttons 60 are operated.

[0054] In the projection system 1, the rotary table 36, which is in contact with the setting surface, is supported by the fixed component 40 so that it can rotate. Therefore, when the rotary table 36 is in contact with the setting surface, rotating the projection system 1 in the horizontal direction allows adjustment of the projection angle of the projector 10 in the horizontal direction.

[0055] When the projector 10 is rotated, since the second operating board 33 of the bracket 20 is disposed on the bracket cover 31, the second operating board 33 and the wiring 24 also rotate accordingly. Therefore, damage to the wiring 24 within the projection system 1 can be suppressed.

[0056] [2. Implementation Method 2]

[0057] Embodiment 2 will be described. In Embodiment 2, parts that are constructed in the same way as in Embodiment 1 are labeled with the same reference numerals and their descriptions are omitted.

[0058] Figure 8 This is a perspective view of projection system 1 according to embodiment 2.

[0059] In embodiment 1, the bracket 20 has a bracket base 30 and a rotating platform 36. An operation button 60 is provided on the upper surface of the bracket base 30.

[0060] In embodiment 2, the support base 30 includes a support cover 31, a rotary table 236, and a base 240. In this embodiment, an operation button 60 is provided on the upper surface of the base 240. A connection terminal 61 is provided on the side surface of the base 240.

[0061] The upper surface of the base 240 has a mounting portion for supporting the rotary table 236. The rotary table 236 is supported in the mounting portion, and a support cover 31 is rotatably supported on the upper part of the rotary table 236. Alternatively, the rotary table 236 may be integrally formed with the base 240.

[0062] In the structure of Embodiment 2, the operation button 60 is provided on the upper surface of the base 240. Therefore, when the user operates the projector 10 by operating the operation button 60, it is possible to suppress accidental rotation in the left and right directions.

[0063] In the structure of Embodiment 2, even when the projection system 1 is rotated in the left-right direction, the base 240 does not rotate relative to the mounting surface. Therefore, even when the projection system 1 is rotated in the left-right direction, the external wiring connected to the connection terminal 61 of the base 240 will not rotate, thus suppressing damage to the external wiring.

[0064] [3. Other Implementation Methods]

[0065] The above-described embodiments are merely one way of applying this disclosure, and can be arbitrarily modified and applied without departing from the spirit of this disclosure.

[0066] In the embodiments described above, the first operating board 12 and the second operating board 33 are connected by a wire. However, by providing a communication unit on both the first operating board 12 and the second operating board 33, wireless connection based on Bluetooth or the like can be achieved. Wi-Fi and Bluetooth are registered trademarks.

[0067] In the above embodiments, the operation button 60 is a power button, a keystone correction button, a brightness adjustment button, and a volume adjustment button. However, the type of operation button 60 can be changed. For example, it could be a button to bring up a menu, a left / right / up / down directional button to change the parameters of each item, or a button indicating confirmation or cancellation.

[0068] [4. Summary of this disclosure]

[0069] The following is a summary published in this note.

[0070] (Appendix 1) A projection system comprising: a projector; a bracket supporting the projector; and a connecting portion connected to the projector and the bracket, thereby connecting the projector and the bracket. The projector has a projection lens and is rotatable relative to the bracket about a rotation axis intersecting the optical axis of the projection lens. The bracket includes: a bracket frame connected to the connecting portion; and a bracket base connected to the bracket frame, supporting the weight of the projector and the bracket frame in the projection system's configured state. An operating portion for operating the projector is provided on the bracket base.

[0071] Therefore, by placing the operating part on the stand base instead of the projector itself, it is possible to prevent the projector from rotating when the user presses the operating part. Thus, the user does not need to be aware of the projector's rotation caused by pressing it, improving operability when rotating the projector.

[0072] (Appendix 2) According to the projection system described in Appendix 1, the projection system has wiring electrically connected to a first operating board of the projector, the wiring extending from the interior of the projector through the interior of the support frame to a second operating board disposed inside the support base, the support base having a power connection terminal capable of being connected to an external source, the power connection terminal being electrically connected to the second operating board, the operating unit including a power button that indicates the power supply to the projector to be turned on and off by acting on the second operating board.

[0073] Therefore, by placing the power button on the stand base instead of the projector itself, it is possible to prevent the projector from rotating due to the user pressing the power button. Thus, the user does not need to be aware of the projector's rotation caused by pressing the power button, improving operability when rotating the projector.

[0074] (Appendix 3) According to the projection system of Appendix 1, the projection system has wiring electrically connected to a first operating board of the projector, the wiring extending from the interior of the projector through the interior of the support frame to a second operating board disposed inside the support base, the operating part including a brightness adjustment button that indicates the adjustment of the brightness of the projected image of the projector by acting on the second operating board.

[0075] Therefore, by placing the brightness adjustment button on the stand base instead of the projector itself, the projector's rotation caused by the user pressing the power button can be prevented. Thus, the user does not need to be aware of the projector's rotation caused by pressing the power button, improving operability when the projector is rotated.

[0076] (Note 4) According to the projection system described in Note 3, the operation unit includes a trapezoidal correction button that, by acting on the second operation base plate, indicates the adjustment of the shape of the projected image of the projector.

[0077] Therefore, by placing a trapezoidal correction button on the stand base instead of the projector itself, the projector's rotation caused by the user pressing the power button can be suppressed. Thus, the user does not need to be aware of the projector's rotation caused by pressing the power button, improving operability when the projector is rotated.

[0078] (Appendix 5) According to the projection system described in Appendix 1, the projection system includes: a first communication unit disposed on a first operation board of the projector; and a second communication unit disposed on a second operation board of the base, capable of communicating with the first communication unit, the operation unit including a brightness adjustment button, the brightness adjustment button performing signal transmission from the second communication unit to the first communication unit by acting on the second operation board, thereby instructing the adjustment of the brightness of the projected image of the projector.

[0079] Therefore, by placing the brightness adjustment button on the stand base instead of the projector, the risk of the projector rotating due to the user pressing the power button can be reduced.

[0080] (Note 6) According to the projection system described in Note 5, the operation unit includes a trapezoidal correction button, which performs signal transmission from the second communication unit to the first communication unit by acting on the second operation board, thereby instructing the adjustment of the shape of the projected image of the projector.

[0081] Therefore, since the keystone correction button is located on the stand base rather than on the rotating projector, it prevents the projector from rotating when the user presses the keystone correction button. Thus, the user does not need to be aware of the projector's rotation caused by pressing the button, improving operability when rotating the projector.

[0082] (Note 7) The projection system according to any one of Notes 1-6, wherein the projection system has a rotary stage that is rotatable relative to the support base, wherein the rotary stage is located below the support base in the configured state of the projection system, and a second operating plate disposed inside the support base is mounted from the inside to the upper surface of the support base.

[0083] Therefore, since the circuit board is positioned on the upper surface of the stand base, the circuit board and wiring rotate together with the stand base when it begins to rotate. This helps to suppress damage to the wiring caused by rotation. Consequently, users do not need to worry about wiring damage when rotating the projector, improving operability during projector rotation.

[0084] (Note 8) The projection system according to any one of Notes 1 to 6, wherein, in the set state of the projection system, the operation unit is located at a position on the upper surface of the support base.

[0085] Therefore, because it is located on the upper surface of the support base, the user can easily press the operating part, improving the operability of the projection system.

[0086] (Note 9) In the projection system according to any one of Notes 1 to 6, when the projector is configured such that the optical axis of the projection lens is oriented vertically upward, the operating part is disposed on the upper surface of the support base in an area that does not overlap with the projector when the projection system is viewed from above in the vertical direction.

[0087] Therefore, when viewed vertically, the optical axis of the projection lens is aligned with the projection system and operation buttons in a non-overlapping area, thus preventing the projector from obstructing the user's pressing of the operation buttons. This improves the operability of the projection system.

[0088] (Note 10) According to the projection system described in Note 9, the operation unit is disposed at a position offset from the center on the upper surface of the support base. In the setting state of the projection system, when the optical axis of the projection lens is horizontal, the operation unit is located on the side of the projector away from the projection lens.

[0089] Therefore, because the operation buttons are located on the side of the projector furthest from the projection lens, projected light is suppressed from entering the user's eyes when the user operates the buttons. This improves the operability of the projection system.

[0090] (Note 11) The projection system according to any one of Notes 1-6, wherein the projection system has wiring electrically connected to a first operating board of the projector, the wiring extending from the interior of the projector through the interior of the support frame to a second operating board disposed inside the support base, the support base having a first connection terminal capable of connecting to a connection cable for transmitting at least one of an image and sound, the first connection terminal being connected to the wiring via the second operating board.

[0091] Therefore, by installing the first connection terminal on the stand base instead of the projector, the likelihood of the wiring connected to the first connection terminal being pulled off the first connection terminal and detaching can be reduced even when the projector rotates relative to the stand base. Thus, users do not need to pay attention to the wiring when rotating the projector, improving operability during projector rotation.

[0092] (Note 12) According to the projection system described in Note 11, wherein, in the configured state of the projection system, the first connection terminal is disposed on the side surface that becomes the support base.

[0093] Therefore, by placing the first connection terminal on the side of the bracket base, even when the projector rotates relative to the bracket, the likelihood of the wiring connected to the first connection terminal colliding with the rotating projector can be reduced. Thus, the user does not need to pay attention to the wiring when rotating the projector, improving operability during rotation.

[0094] (Appendix 13) The projection system according to any one of Appendices 1-6, wherein the projection system has wiring electrically connected to a first operating board of the projector, the wiring extending from the interior of the projector through the interior of the support frame to a second operating board inside the support base, the support base having: a first connection terminal capable of being connected to a connection cable for transmitting at least one of image and sound; and a second connection terminal capable of being connected to the connection cable and having a different specification from the first connection terminal, wherein the first connection terminal and the second connection terminal are disposed on a surface that forms a side of the support base in the configured state of the projection system.

[0095] Therefore, by providing multiple connection terminals on the side of the stand base, the connecting cables are also connected to the side of the stand base. This eliminates the need for users to worry about wiring when rotating the projector, improving operability during projector rotation.

[0096] (Appendix 14) A projection system comprising: a projector; a bracket supporting the projector; a connecting portion connected to the projector and the bracket, connecting the projector and the bracket; and a wiring electrically connected to a first operating board of the projector, the projector having a projection lens, the projector being rotatable relative to the bracket about a rotation axis intersecting the optical axis of the projection lens, the bracket comprising: a bracket frame connected to the connecting portion; and a bracket base connected to the bracket frame, supporting the weight of the projector and the bracket frame in the projection system setup state, the bracket base having an operating portion for operating the projector, the wiring extending from the interior of the projector through the interior of the bracket frame to a second operating board disposed inside the bracket base, the bracket base having a first connection terminal capable of being connected to a connection cable for transmitting at least one of an image and sound, the first connection terminal being connected to the wiring via the second operating board.

[0097] Therefore, by installing the first connection terminal on the stand base instead of the projector, the likelihood of the wiring connected to the first connection terminal being pulled off the first connection terminal and detaching can be reduced even when the projector rotates relative to the stand base. Thus, users do not need to pay attention to the wiring when rotating the projector, improving operability during projector rotation.

[0098] (Note 15) According to the projection system described in Note 14, wherein, in the configured state of the projection system, the first connection terminal is disposed on the side surface that becomes the support base.

[0099] Therefore, by placing the first connection terminal on the side of the bracket base, even when the projector rotates relative to the bracket, the likelihood of the wiring connected to the first connection terminal colliding with the rotating projector can be reduced. Thus, the user does not need to pay attention to the wiring when rotating the projector, improving operability during rotation.

[0100] (Note 16) According to the projection system described in Note 15, the support base has a second connection terminal that can be connected to the connection cable and has a different specification from the first connection terminal. In the setup state of the projection system, the second connection terminal is disposed on the side of the support base.

[0101] Therefore, by providing multiple connection terminals on the side of the stand base, the connecting cables are also connected to the side of the stand base. This eliminates the need for users to worry about wiring when rotating the projector, improving operability during projector rotation.

[0102] (Note 17) In the projection system according to Note 14 or 15, the support base has a second connection terminal that can be connected to the connection cable and has a different specification than the first connection terminal.

[0103] Therefore, by installing the first connection terminal on the stand base instead of the projector, the likelihood of the wiring connected to the first connection terminal being pulled off the first connection terminal and detaching can be reduced even when the projector rotates relative to the stand base. Thus, users do not need to pay attention to the wiring when rotating the projector, improving operability during projector rotation.

[0104] (Note 18) The projection system according to any one of Notes 14 to 16, wherein the projection system has power wiring electrically connected to the first operating board, the power wiring extending from the interior of the projector through the interior of the support frame to the second operating board, the support base having a power connection terminal capable of being connected to an external source, the power connection terminal being electrically connected to the second operating board, and the operating unit including a power button that indicates the on and off of the power supply to the projector by actuating the second operating board.

[0105] Therefore, by placing the power button on the stand base instead of the projector itself, the likelihood of the projector rotating due to user pressing the power button can be reduced. This improves operability as users don't need to worry about projector rotation caused by pressing the button. Furthermore, users don't need to worry about wiring when rotating the projector, further enhancing operability.

[0106] (Note 19) The projection system according to any one of Notes 14 to 16, wherein the projection system has a rotary stage that is rotatable relative to the support base, wherein the rotary stage is located below the support base in the configured state of the projection system, and the second operating plate is mounted on the upper surface of the support base from the inside.

[0107] Therefore, since the circuit board is positioned on the upper surface of the support base, when the support base begins to rotate, the circuit board and wiring also rotate together. This reduces the likelihood of damage to the wiring caused by rotation.

Claims

1. A projection system, characterized in that, This projection system has the following features: Projector; A bracket that supports the projector; and A connecting part, which connects to the projector and the bracket, thereby connecting the projector and the bracket. The projector has a projection lens. The projector is capable of rotating relative to the support about a rotation axis that intersects the optical axis of the projection lens. The support includes: A support frame, which is connected to the connecting part; and A support base, connected to the support frame, supports the weight of the projector and the support frame when the projection system is in its configured state. The support base is provided with an operating part that can operate the projector.

2. The projection system according to claim 1, characterized in that, The projection system has wiring that is electrically connected to the first operating board of the projector. The wiring extends from the interior of the projector through the interior of the support frame to a second operating board disposed inside the support base. The support base has a power connection terminal for external connection, which is electrically connected to the second operating board. The operation unit includes a power button that, when actuated on the second operation board, indicates whether the power supply to the projector is turned on or off.

3. The projection system according to claim 1, characterized in that, The projection system has wiring that is electrically connected to the first operating board of the projector. The wiring extends from the interior of the projector through the interior of the support frame to a second operating board disposed inside the support base. The operation unit includes a brightness adjustment button, which, by acting on the second operation base plate, indicates the adjustment of the brightness of the projected image of the projector.

4. The projection system according to claim 3, characterized in that, The operating unit includes a keystone correction button, which, by acting on the second operating base plate, indicates the adjustment of the shape of the projected image of the projector.

5. The projection system according to claim 1, characterized in that, The projection system has the following features: A first communication unit is disposed on the first operating board of the projector; as well as The second communication unit, which is disposed on the second operating board of the support base, is capable of communicating with the first communication unit. The operation unit includes a brightness adjustment button, which, by acting on the second operation board, executes the transmission of a signal from the second communication unit to the first communication unit, thereby instructing the adjustment of the brightness of the projected image of the projector.

6. The projection system according to claim 5, characterized in that, The operation unit includes a trapezoidal correction button, which, by acting on the second operation board, executes a signal transmission from the second communication unit to the first communication unit, thereby instructing the adjustment of the shape of the projected image of the projector.

7. The projection system according to any one of claims 1 to 6, characterized in that, The projection system has a rotary table that can rotate relative to the support base. In the configured state of the projection system, the rotary table is located below the support base. A second operating plate disposed inside the bracket base is mounted on the upper surface of the bracket base from the inside.

8. The projection system according to any one of claims 1 to 6, characterized in that, In the setup state of the projection system, the operation unit is positioned on the upper surface of the support base.

9. The projection system according to any one of claims 1 to 6, characterized in that, With the projector positioned so that the optical axis of the projection lens faces vertically upwards, when the projection system is viewed from above in the vertical direction, the operating part is located on the upper surface of the support base in an area that does not overlap with the projector.

10. The projection system according to claim 9, characterized in that, The operating part is located on the upper surface of the support base at a position offset from the center. In the projection system's setup state, with the optical axis of the projection lens in a horizontal direction, the operation unit is located on the side of the projector furthest from the projection lens.

11. The projection system according to any one of claims 1 to 6, characterized in that, The projection system has wiring that is electrically connected to the first operating board of the projector. The wiring extends from the interior of the projector through the interior of the support frame to a second operating board disposed inside the support base. The bracket base has a first connection terminal capable of being connected to a connection cable that transmits at least one of the images and the sound. The first connection terminal is connected to the wiring via the second operating board.

12. The projection system according to claim 11, characterized in that, In the setup state of the projection system, the first connection terminal is disposed on the side surface that becomes the support base.

13. The projection system according to any one of claims 1 to 6, characterized in that, The projection system has wiring that is electrically connected to the first operating board of the projector. The wiring extends from the inside of the projector, through the inside of the support frame, to the second operating board inside the support base. The support base has: The first connection terminal is capable of being connected to a connection cable that transmits at least one of the images and the sound. as well as The second connector terminal is capable of connecting to the connector cable and has different specifications than the first connector terminal. In the setup state of the projection system, the first connection terminal and the second connection terminal are disposed on the side surface that forms the support base.

14. A projection system, characterized in that, This projection system has the following features: Projector; A stand that supports the projector; A connecting part, which is connected to the projector and the bracket, to connect the projector and the bracket; as well as The wiring is electrically connected to the first operating board of the projector. The projector has a projection lens. The projector is capable of rotating relative to the support about a rotation axis that intersects the optical axis of the projection lens. The support includes: A support frame, which is connected to the connecting part; as well as A support base, connected to the support frame, supports the weight of the projector and the support frame when the projection system is in its configured state. The support base is provided with an operating part for operating the projector. The wiring extends from the interior of the projector through the interior of the support frame to a second operating board disposed inside the support base. The bracket base has a first connection terminal, which can be connected to a connection cable that transmits at least one of the images and the sound. The first connection terminal is connected to the wiring via the second operating board.

15. The projection system according to claim 14, characterized in that, In the setup state of the projection system, the first connection terminal is disposed on the side surface that becomes the support base.

16. The projection system according to claim 15, characterized in that, The bracket base has a second connection terminal that can be connected to the connection cable, and the second connection terminal has a different specification than the first connection terminal. In the setup state of the projection system, the second connection terminal is disposed on the side surface that becomes the support base.

17. The projection system according to claim 14 or 15, characterized in that, The bracket base has a second connection terminal that can be connected to the connection cable and has a different specification than the first connection terminal.

18. The projection system according to any one of claims 14 to 16, characterized in that, The projection system has power wiring that is electrically connected to the first operating board. The power supply wiring extends from the inside of the projector through the inside of the support frame to the second operating board. The support base has a power connection terminal for external connection, which is electrically connected to the second operating board. The operation unit includes a power button that, when actuated on the second operation board, indicates whether the power supply to the projector is turned on or off.

19. The projection system according to any one of claims 14 to 16, characterized in that, The projection system has a rotary table that can rotate relative to the support base. In the configured state of the projection system, the rotary table is located below the support base. The second operating base plate is mounted on the upper surface of the bracket base from the inside.

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