Projection system, cart for projector, and method for setting projection system

Abstract

Provided are a projection system, a cart for a projector, and a method for setting the projection system. Provided is a projection system with improved operability. The projection system includes: a projector; and a cart for a projector that accommodates the projector, the projector including: a housing; a light source unit housed in the housing; a light modulation unit which is housed in the housing and modulates light emitted from the light source unit; a projection lens unit that emits the light modulated by the light modulation unit to the outside of the housing; the present invention relates to a projector cart which includes a light source unit, a projection lens unit, and a power supply board unit which is housed in a housing and supplies power to the light source unit, the projector cart including: a housing unit which is capable of housing the projector and which is capable of emitting light emitted from the projection lens unit to the outside of the projector cart in a use state of the projector, and a power supply board unit which is housed in the housing and supplies power to the light source unit; the wheels are arranged vertically below the accommodating part; and a first operation unit which is positioned vertically above the housing unit and which changes the electrical state of the power supply board unit.

Description

Technical Field

[0001] The present invention relates to a projection system, a cart for a projector, and a method for setting up a projection system. Background Art

[0002] Conventionally, a projector that displays an image by projecting projection light onto a screen or the like has been known. A shelf for a projector that can improve convenience even when the projector is moved has been known (for example, refer to Patent Document 1).

[0003] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2012-098644

[0004] When performing projection mapping using a plurality of projectors, there is a problem that it is difficult to adjust the position. Summary of the Invention

[0005] The projection system of the present disclosure includes: a projector; and a cart for a projector that houses the projector. The projector includes: a housing; a light source unit housed in the housing; a light modulation unit housed in the housing that modulates light emitted from the light source unit; a projection lens unit that emits the light modulated by the light modulation unit to the outside of the housing; and a power supply board unit housed in the housing that supplies power to the light source unit. In a use state of the projector, the cart for a projector includes: a storage unit that can house the projector and can emit the light emitted from the projection lens unit to the outside of the cart for a projector; wheels provided vertically below the storage unit; and a first operation unit located vertically above the storage unit for changing an electrical state of the power supply board unit.

[0006] The cart for a projector of the present disclosure houses a projector and is movable. The cart for a projector includes: a storage unit that can house the projector; wheels provided on the storage unit; and a first operation unit for changing an electrical state of the projector. In a use state, the first operation unit is located vertically above the storage unit in the vertical direction.

[0007] A method for setting up a projection system of the present disclosure, wherein the projection system includes: a projector; a storage unit that houses the projector; wheels provided on the storage unit; a grip unit provided on the storage unit; and an operation unit provided on the grip unit for changing an electrical state of the projector. The setting method includes: gripping the grip unit and moving the wheels; after moving the wheels, operating the operation unit to turn on the power of the projector; and after turning on the power, gripping the grip unit and adjusting the position of the projection system. Brief Description of the Drawings

[0008] Figure 1 Is a left front isometric view of the projection system of Embodiment 1.

[0009] Figure 2 Is a right rear isometric view of the projection system of Embodiment 1.

[0010] Figure 3 Is a right rear isometric view of the projection system when the holding part is stored in Embodiment 1.

[0011] Figure 4 Is a front view of the projection system of Embodiment 1.

[0012] Figure 5 Is a right rear isometric view of the projection system of Embodiment 2.

[0013] Figure 6 Is a right rear isometric view of the projection system when the holding part is stored in Embodiment 2.

[0014] Figure 7 Is a right rear isometric view of the projection system of Embodiment 3.

[0015] Reference Numeral Explanation

[0016] 1: Projection system; 10: Projector; 11: Housing; 14: Projection lens unit; 15: Suction port; 16: Heat exhaust port; 17: Leg; 20: Projector cart; 30: Storage part; 31: Front surface part (first surface); 31a: Vertical surface; 31b: Inclined surface; 32: Rear surface part (second surface); 32a: Notch; 33: Right surface part (third surface); 34: Left surface part (fourth surface); 35: Upper surface part (fifth surface); 35a: Notch; 36: Lower surface part (sixth surface); 37: Suction hole; 38: Heat exhaust hole; 39: Wheel; 40: Window part; 41: Partition plate; 1 < 50: Holding part; 150a: Upper end; 151: First support part; < 52: Second support part; 153: Connection part; 155: First operation part (operation panel); 250: Holding part; 251: First support part; 251a: Holding area; 252: Second support part; 252a: Holding area; 255: First operation part (push button); 335: Support part storage part; 335a: Support part storage hole; 350: Holding part; 351: First support part; 351a: Protrusion; 352: Second support part; 352: Protrusion; 353: Connection part; 355: First operation part (push button); 356: Second operation part (push button). Detailed Embodiment

[0017] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. In the figures, the reference numeral FR indicates the front (front direction) of the projection system 1 in the set state, the reference numeral UP indicates the upper side of the projection system 1, and the reference numeral RH indicates the right side of the projection system 1. Although not shown, the opposite direction of the reference numeral FR indicates the rear of the projection system 1, the opposite direction of the reference numeral UP indicates the lower side of the projection system 1, and the opposite direction of the reference numeral RH indicates the left side of the projection system 1. In addition, in the description, unless otherwise specified, the descriptions of directions such as front, rear, left, right, up, and down are the same as those for the projection system 1 described above.

[0018] Embodiment 1

[0019] Figure 1 is a left front perspective view of the projection system 1. Figure 2 is a right rear perspective view of the projection system 1. Figure 3 is a right rear perspective view of the projection system 1 when the holding portion 150 is stored. Figure 4 is a front view of the projection system 1.

[0020] The projection system 1 is composed of a projector 10 that projects an image and a projector cart 20 that houses the projector 10.

[0021] The projector 10 includes a housing 11, a light source unit, a light modulation unit, a projection lens unit 14, and a power supply substrate unit.

[0022] When the power of the projector 10 is turned on, power is supplied to the light source unit through the power supply substrate unit. The light emitted from the light source unit is incident on the light modulation unit. The light modulation unit modulates the light emitted from the light source unit. The light modulated by the light modulation unit is emitted to the outside of the housing 11 through the projection lens unit 14, and an image can be projected onto the projection surface.

[0023] An air intake port 15 for intake and a heat exhaust port 16 for heat exhaust are provided in the housing 11 of the projector 10. In addition, legs 17 that can adjust the projection surface in the vertical direction are provided at the lower part of the housing 11 of the projector 10.

[0024] The projector cart 20 houses the projector 10 and can move the projector cart 20. Examples of the movement of the projector cart 20 include movement based on human power, movement based on a robot, etc.

[0025] As Figure 4 shown, the projector cart 20 includes a storage portion 30 having a substantially rectangular parallelepiped shape. The projector 10 is stored inside the storage portion 30.

[0026] The storage unit 30 includes an upper surface portion (the fifth surface) 35 that forms the top surface, a right surface portion 33 (the third surface) and a left surface portion (the fourth surface) 34 that form the left and right sides, a front surface portion (the first surface) 31 and a rear surface portion 32 (the second surface) that form the front and rear surfaces, and a lower surface portion (the sixth surface) 36 that forms the bottom surface. In addition, each surface of the storage unit 30 may be composed of multiple surfaces respectively. In the present embodiment, the front surface portion 31 is composed of a vertical surface 31a perpendicular to the horizontal floor and an inclined surface 31b intersecting with the vertical surface 31a. The upper surface portion 35 is disposed substantially parallel to the horizontal floor. By arranging the horizontal surface in this way, it can be used as a mounting table for an electronic device or the like connected to the projector 10 stored in the storage unit 30.

[0027] An air intake hole 37 is formed in the front surface of the storage unit 30. Heat exhaust holes 38 are formed in the right surface portion 33 and the rear surface portion 32 of the storage unit 30. The air intake hole 37 and the heat exhaust holes 38 are provided at positions that do not interfere with the intake and exhaust of the projector 10 disposed inside the projector cart 20. In addition, the air intake hole 37 and the heat exhaust holes 38 may be composed of multiple slit holes. Thus, even when the projector 10 is disposed in the storage unit 30, it is possible to suppress the temperature inside the storage unit 30 from rising due to the heat exhaust air of the projector 10. That is, since the projector 10 can discharge the heat exhaust air outside the storage unit 30 of the projector cart 20, it is possible to suppress the heat exhaust air of the projector 10 from accumulating inside the storage unit 30, and it is possible to perform the intake operation and the heat exhaust operation without the temperature inside the storage unit 30 rising.

[0028] Wheels 39 are provided on the lower surface portion 36 of the storage unit 30. The wheels 39 are respectively provided at the four corners of the lower surface portion 36. A stopper is provided on the wheel 39, and the stopper can limit the rotation of the wheel 39.

[0029] A window portion 40 is provided on at least one of the upper surface portion 35 and the front surface portion 31 of the storage unit 30, and the window portion 40 is used to emit the projection light from the projector 10 to the outside of the storage unit 30. The window portion 40 is provided so as not to block the projection light from the projector 10. In addition, regarding the window portion 40, the upper surface portion 35 and the front surface portion 31 may be removed to serve as the window portion 40. That is, the upper surface portion 35 and the front surface portion 31 of the storage unit 30 are formed to be removable, and the projection system 1 can also be used in a state where the upper surface portion 35 and the front surface portion 31 are removed.

[0030] In the present embodiment, a partition plate 41 is provided in the storage unit 30, which divides the storage unit 30 into an upper space and a lower space. The storage unit 30 can also be divided into multiple spaces in this way. By dividing the storage unit 30 into multiple spaces, the installation height of the projector 10 can be roughly adjusted to match the position of the projection lens unit 14 of the projector 10 and the position where the projector 10 projects. In addition, the space below the partition plate 41 can be set as a storage place for related components such as machinery other than the projector 10 and cables used for wiring.

[0031] A gripping portion 150 that serves as a handle when moving the projector cart 20 is provided in the storage unit 30. The gripping portion 150 is provided at the rear end of the storage unit 30. In the present embodiment, the gripping portion 150 has a first support column portion 151 and a second support column portion 152 that extend in the vertical direction, and a connecting portion 153 that connects the upper ends of the first support column portion 151 and the second support column portion 152. That is, the gripping portion 150 is formed in an inverted U shape when viewed from the front.

[0032] An operation panel (first operation portion) 155 is provided at the connecting portion 153 of the gripping portion 150. The operation panel 155 is a touch display, and by the user touching the icons displayed on the touch display, operations such as power operation of the projector 10 and trapezoid correction can be performed.

[0033] The gripping portion 150 is formed to be displaceable, penetrates and inserts into the upper surface portion 35, and can be stored inside the storage unit 30. As a displacement means for storing the gripping portion 150 in the storage unit 30, a telescopic structure and a folding structure can be cited. In addition, the gripping portion 150 can be exposed from the storage unit 30 and the length can be freely changed. That is, the storage in the present disclosure is not only the state where the entire gripping portion 150 is stored inside the storage unit 30, but also the state where a part of the gripping portion 150 is stored inside the storage unit 30 and a part is exposed outside the storage unit 30.

[0034] The gripping portion 150 is formed such that when extended to the maximum extent, the length from the upper surface portion 35 to the operation panel 155 is longer than the length of the storage unit 30 from the lower surface portion 36 to the upper surface portion 35. By providing the operation panel 155 on the gripping portion 150 in this way, it is not necessary to take out the projector 10 from the storage unit 30 in order to change the settings of the projector 10, and in addition, the projector cart 20 can be moved in an upright posture.

[0035] The gripping portion 150 can be contracted until the uppermost end 150a of the gripping portion 150 is at a position equal to or lower than the upper surface portion 35 of the storage unit 30.

[0036] A notch 35a for accommodating the connecting portion 153 is provided at the rear end of the upper surface portion 35 of the accommodating portion 30. In addition, a notch 32a is also provided at the upper end of the rear surface portion 32 so that a part of the grasped portion 150 accommodated therein is exposed outside the accommodating portion 30. Through the notches 32a and 35a, in a state where the grasped portion 150 is accommodated in the accommodating portion 30, a gap is formed around the connecting portion 153 of the grasped portion 150, and an operator can grasp the grasped portion 150 and take it out. In addition, when the grasped portion 150 is accommodated, the outer surface of the operation panel 155 is exposed. That is, even when the grasped portion 150 is accommodated, the user can operate the projector 10 through the operation panel 155 while being located outside the accommodating portion 30.

[0037] A cable (not shown) for supplying power to the projector 10 and a wiring hole (not shown) for routing the cable are provided in the accommodating portion 30.

[0038] At least a part of the first support portion 151, the second support portion 152, and the connecting portion 153 has a hollow structure with a cavity inside. A circuit controlled by the operation of the operation panel 155 is provided in the internal cavity. The circuit extends to the accommodating portion 30 and is connected to the projector 10.

[0039] The projection system 1 is set through three substantially divided processes. The first process is a process of moving the wheels 39 while grasping the grasped portion 150 of the projection system 1. Through this step, the position of the projection system 1 can be roughly determined. The second process is a process of operating the first operation portion 155 provided on the grasped portion 150 to turn on the power of the projector 10 mounted on the projection system 1. The third process is a process of finely adjusting the position of the projection system 1 while grasping the grasped portion 150. Through these processes, the position adjustment of the projection system 1 can be easily performed.

[0040] Effects of Embodiment 1

[0041] As described above, according to Embodiment 1 to which the present invention is applied, there are provided a projector 10 and a projector cart 20 for accommodating the projector 10. The projector 10 includes: a housing 11; a light source unit accommodated in the housing 11; a light modulation unit accommodated in the housing 11 for modulating the light emitted from the light source unit; a projection lens unit 14 for emitting the light modulated by the light modulation unit to the outside of the housing 11; and a power supply substrate unit accommodated in the housing 11 for supplying power to the light source unit. In a use state of the projector 10, the projector cart 20 includes: an accommodating portion 30 capable of accommodating the projector 10 and capable of emitting the light emitted from the projection lens unit 14 to the outside of the projector cart 20; wheels 39 provided vertically below the accommodating portion 30; and an operation panel 155 located vertically above the accommodating portion 30 for changing the electrical state of the power supply substrate unit.

[0042] Accordingly, it is easy for the operator to operate the projector 10 in an upright position, so that the operability of the projection system 1 and the projector cart 20 can be improved.

[0043] The projector cart 20 includes a grip portion 150 provided in the storage portion 30. The grip portion 150 is located above the storage portion 30 in the vertical direction, and an operation panel 155 is provided on the grip portion 150.

[0044] Accordingly, the grip portion 150 can be used to move the projection system 1 and operate the projector 10. It is easy for the operator to operate the projector 10 in an upright position, so that the operability of the projection system 1 can be improved.

[0045] The operation panel 155 can operate to turn on and off the power of the projector 10.

[0046] Accordingly, the grip portion 150 can be used to operate the power of the projector 10, so that the operability of the projection system 1 is improved.

[0047] The operation panel 155 can cause the projector 10 to perform trapezoidal correction of the image projected by the projector 10.

[0048] Accordingly, the grip portion 150 can be used to perform trapezoidal correction operation of the projector 10, so that the operability of the projection system 1 is improved.

[0049] In the use state, at least a part of the grip portion 150 is provided so as to be able to be stored at a position equivalent to the upper surface of the storage portion 30 or below the upper surface of the storage portion 30. In the state where the grip portion 150 is stored, the operation panel 155 faces the outside of the storage portion 30.

[0050] Accordingly, the user can operate the operation panel 155 while storing the grip portion 150, so that the operability of the projection system 1 is improved.

[0051] The storage unit 30 includes: a front surface portion 31; a rear surface portion 32 opposed to the front surface portion 31; a right surface portion 33 intersecting the front surface portion 31 and the rear surface portion 32; a left surface portion 34 opposed to the right surface portion 33 and intersecting the front surface portion 31 and the rear surface portion 32; an upper surface portion 35 intersecting the front surface portion 31, the rear surface portion 32, the right surface portion 33, and the left surface portion 34; and a lower surface portion 36 opposed to the upper surface portion 35 and intersecting the front surface portion 31, the rear surface portion 32, the right surface portion 33, and the left surface portion 34. At least one of the front surface portion 31 and the upper surface portion 35 is provided with a window portion 40 for emitting the projection light of the projector 10 to the outside of the storage unit 30. Wheels 39 are provided on the lower surface portion 36, and a grip portion 150 is provided on the upper surface portion 35. The grip portion 150 includes: a first support portion 151 connected to the upper surface portion 35; a second support portion 152 connected to the upper surface portion 35; and a connecting portion 153 connecting the first support portion 151 and the second support portion 152. The operation panel 155 is provided on the connecting portion 153.

[0052] Thereby, the risk of misoperation when the user grasps the first support portion 151 and the second support portion 152 and moves the projection system 1 and the projector cart 20 can be reduced.

[0053] In the use state, the length in the vertical direction of the portion of the first support portion 151 above the upper surface portion 35 is greater than the distance from the upper surface portion 35 to the lower surface portion 36 of the storage unit 30, and the distance from the upper surface portion 35 to the operation panel 155 is greater than the distance from the upper surface portion 35 to the lower surface portion 36 of the storage unit 30.

[0054] Thereby, the operator can operate the operation panel 155 while maintaining an upright posture using the grip portion 150, so the operability when storing the projector 10 is improved.

[0055] The first support portion 151 has a hollow structure, and a circuit controlled by the operation of the operation panel 155 is provided in the hollow structure. Wiring electrically connected to the circuit reaches the storage unit 30 via the hollow structure.

[0056] Thereby, the projector 10 can be operated in a wired manner with respect to the projector cart 20.

[0057] A method for setting up a projection system 1, the projection system 1 comprising: a projector 10; a storage unit 30 that stores the projector 10; wheels 39 provided on the storage unit 30; a grip unit 150 provided on the storage unit 30; and an operation panel 155 provided on the grip unit 150 for changing the electrical state of the projector 10. The method for setting up the projection system 1 includes: a first step of moving the wheels 39 by gripping the grip unit 150; a second step of operating the operation panel 155 after the first step to turn on the power of the projector; and a third step of adjusting the position of the projection system 1 by gripping the grip unit 150 after the second step.

[0058] Thus, the grip unit 150 can be used to move and operate the projection system 1 while maintaining an upright posture, so the operability of the projection system 1 and the projector trolley 20 is improved.

[0059] Embodiment 2

[0060] Embodiment 2 of the application of the present invention will be described. In this Embodiment 2, the same reference numerals are given to the parts having the same configuration as those in Embodiment 1 above, and the description thereof is omitted.

[0061] Figure 5 It is a right rear three-dimensional view of the projection system 1 in Embodiment 2. Figure 6 It is a right rear three-dimensional view of the projection system 1 when the grip unit 250 is stored in Embodiment 2.

[0062] In Embodiment 2, the shape of the grip unit 250 is different from that of the grip unit 150 in Embodiment 1. That is, in Embodiment 1, the grip unit 150 has a first support portion 151, a second support portion 152, and a connecting portion 153. However, in Embodiment 2, the grip unit 250 is composed of a first support portion 251 and a second support portion 252. The first support portion 251 and the second support portion 25 at the upper end have gripping regions 251a, 252a. The gripping regions 251a, 252a are formed, for example, by providing a gripping portion or the like on the first support portion 251 and the second support portion 252.

[0063] In addition, in Embodiment 2, the form and arrangement position of the first operation unit 155 are different from those in Embodiment 1. In Embodiment 1, the operation panel 155 is provided on the connecting portion 153 of the grip unit 150. However, in Embodiment 2, a pushbutton (first operation unit) (255) that can be pressed forward of the projector trolley 20 is arranged at the rear of the first support portion 251 and the second support portion 252. By arranging the pushbutton 255 in this way, when the user holds the grip unit 250 to operate and move the projection system 1, it is possible to prevent the first operation unit 255 from being pressed due to an accidental operation.

[0064] Effects of Embodiment 2

[0065] As described above, according to Embodiment 2 of the present invention, the storage unit 30 has: a front surface portion 31; a rear surface portion 32 opposed to the front surface portion 31; a right surface portion 33 intersecting the front surface portion 31 and the rear surface portion 32; a left surface portion 34 opposed to the right surface portion 33 and intersecting the front surface portion 31 and the rear surface portion 32; an upper surface portion 35 intersecting the front surface portion 31, the rear surface portion 32, the right surface portion 33, and the left surface portion 34; and a lower surface portion 36 opposed to the upper surface portion 35 and intersecting the front surface portion 31, the rear surface portion 32, the right surface portion 33, and the left surface portion 34. At least one of the front surface portion 31 and the upper surface portion 35 is provided with a window portion 40 for emitting the projection light of the projector 10 to the outside of the storage unit 30. A wheel 39 is provided on the lower surface portion 36, and a grip portion 250 is provided on the upper surface portion 35. In the use state, the grip portion 250 includes a first support portion 251 extending upward. One end of the first support portion 251 is connected to the upper surface portion 35, and a push button 255 is provided on a portion of the first support portion 251 facing the direction from the front surface portion 31 toward the rear surface portion 32.

[0066] Thereby, when the user grasps the grip portion 250 and moves the projection system 1, it is possible to suppress the accidental pressing of the push button 255.

[0067] Embodiment 3

[0068] Embodiment 3 of the present invention will be described. In this Embodiment 3, the same reference numerals are given to the parts having the same configuration as those in Embodiment 1 above, and the description thereof is omitted.

[0069] Figure 7 It is a right rear perspective view of the projection system 1 of Embodiment 3.

[0070] In Embodiment 3, the shape of the projector cart 20 is different. In Embodiment 1, the grip portion 150 is stored by providing the notches 32a and 35a. However, in Embodiment 3, the grip portion 350 is stored by providing a support portion storage portion 335 on the rear surface portion 32 of the projector cart 20. Thereby, a support portion storage hole 335a is formed in the upper surface portion 35, and the grip portion 350 can be stored.

[0071] In addition, in Embodiment 1, the gripping portion 150 is composed of a first support portion 151, a second support portion 152, and a connecting portion 153, and an operation panel 155 is provided on the connecting portion 153 provided in the gripping portion 150. In Embodiment 3, the first support portion 351 and the second support portion 352 of the gripping portion 350 have protruding portions 351a and 352a that extend outward in the vehicle width direction of the projector cart 20 from the upper end portions of the first support portion 351 and the second support portion 352. In addition, the vehicle width direction refers to the direction along the reference sign RH.

[0072] Moreover, in addition to the operation panel 155 provided on the connecting portion 353, a push button (first operation portion) 355 on the first support side and a push button (second operation portion) 356 on the second support side that can be pressed from the outside to the inside of the projection system 1 are provided at the outer ends of the protruding portions 351a and 352a. In the present embodiment, the first operation portion 355 performs operations related to the power supply of the projector, and the second operation portion 356 performs operations related to trapezoid correction.

[0073] Effect of Embodiment 3

[0074] The storage portion 30 has: a front surface portion 31; a rear surface portion 32 that faces the front surface portion 31; a right surface portion 33 that intersects the front surface portion 31 and the rear surface portion 32; a left surface portion 34 that faces the right surface portion 33 and intersects the front surface portion 31 and the rear surface portion 32; an upper surface portion 35 that intersects the front surface portion 31, the rear surface portion 32, the right surface portion 33, and the left surface portion 34; and a lower surface portion 36 that faces the upper surface portion 35 and intersects the front surface portion 31, the rear surface portion 32, the right surface portion 33, and the left surface portion 34. At least one of the front surface portion 31 and the upper surface portion 35 is provided with a window portion 40 for emitting the projection light of the projector 10 to the outside of the storage portion 30. Wheels 39 are provided on the lower surface portion 36, and a gripping portion 350 is provided on the upper surface portion 35. The gripping portion 350 includes: a first support portion 351 that is connected to the upper surface portion 35; a second support portion 352 that is connected to the upper surface portion 35; and a connecting portion 353 that connects the first support portion 351 and the second support portion 352. A push button 355 is provided on the side of the first support portion 351 opposite to the connecting portion 353 in the vehicle width direction of the projector cart 20.

[0075] Accordingly, when the user grips the gripping portion 350 and moves the projection system 1, it is possible to prevent the push button 355 from being pressed due to an accidental operation.

[0076] There is a push button 356 for changing the electrical state of the projector 10. The push button 356 is provided on the side of the second support portion 352 opposite to the connection portion 353 in the vehicle width direction of the projector cart 20. The first operation portion 355 includes a push button 355 or an operation panel 155 for turning on or off the power of the projector. The push button 356 causes the projector 10 to perform trapezoidal correction of the image projected by the projector 10.

[0077] Thus, the holding portion 350 can be used to move the projection system 1 and operate the projector 10, improving the operability of the projection system 1.

[0078] Other embodiments

[0079] The above embodiments only show one aspect of the present invention, and can be arbitrarily deformed and applied without departing from the gist of the present invention.

[0080] In Embodiments 1 to 3, the operation panel 155 provided at the connection portions 153 and 353, the push button 255 provided behind the holding portion 250, and the push buttons 355 and 356 provided at the protruding portions 351a and 352a are disclosed. However, the arrangement of these operation panels and push buttons, that is, the arrangement of the first operation portion and the second operation portion is not limited to this.

[0081] For example, in Embodiment 2, a push button that can be pressed downward from the upper ends of the first support portion 251 and the second support portion 252, that is, the upper end portions of the holding regions 251a and 252a, toward the projector cart 20 may be provided. In addition, these first operation portions and second operation portions may be provided at multiple positions, and the second operation portion may be provided at the position of these first operation portions. In addition, regarding the push button and the touch panel, as long as a signal related to the operation can be sent to the projector, it can be appropriately changed.

[0082] In Embodiment 1, the circuit provided on the operation panel 155 sends a signal to the projector 10 in a wired manner. However, it may also be in a form where the circuit sends a wireless signal to the projector 10.

[0083] In Embodiments 1 to 3, a structure in which the holding portion has an inverted U shape in the front view through the first support portion, the second support portion, and the connection portion, and a structure composed of the first support portion and the second support portion are disclosed. However, the shape of the holding portion is not limited to this. For example, a T-shaped holding portion may be formed by one support extending from the storage portion and a support extending in the left-right direction at the upper end of the support.

[0084] Summary of the present disclosure

[0085] Hereinafter, the summary of the present disclosure is noted.

[0086] Supplementary Note 1

[0087] A projection system includes: a projector; and a cart for the projector that houses the projector. The projector includes: a housing; a light source unit housed in the housing; a light modulation unit housed in the housing that modulates light emitted from the light source unit; a projection lens unit that emits the light modulated by the light modulation unit to the outside of the housing; and a power supply substrate unit housed in the housing that supplies power to the light source unit. In the usage state of the projector, the cart for the projector includes: a storage unit that can house the projector and can emit the light emitted from the projection lens unit to the outside of the cart for the projector; wheels provided vertically below the storage unit; and a first operation unit located vertically above the storage unit for changing the electrical state of the power supply substrate unit.

[0088] Thus, it is easy for an operator to operate the projector in a standing position, so the operability of the projection system is improved.

[0089] Supplementary Note 2

[0090] According to the projection system described in Supplementary Note 1, the cart for the projector includes a gripping portion provided on the storage unit. The gripping portion is located above the storage unit in the vertical direction, and the first operation unit is provided on the gripping portion.

[0091] Thus, the gripping portion can be used to move the projection system and operate the projector. It is easy for an operator to operate the projector in a standing position, so the operability of the projection system is improved.

[0092] Supplementary Note 3

[0093] According to the projection system described in Supplementary Note 1 or 2, the first operation unit includes a button or icon for turning on or off the power of the projector.

[0094] Thus, the gripping portion can be used to operate the power supply of the projector, so the operability of the projection system is improved.

[0095] Supplementary Note 4

[0096] According to the projection system described in Supplementary Note 1 or 2, the first operation unit includes a button or icon for performing trapezoidal correction of the image projected by the projector.

[0097] Thus, the gripping portion can be used to perform trapezoidal correction operation of the projector, so the operability of the projection system is improved.

[0098] Supplementary Note 5

[0099] The projection system according to any one of Appendices 2 to 4, wherein, in the usage state of the projector, at least a part of the holding part is configured to be storable at a position equivalent to the vertically upper surface in the storage part or below the vertically upper surface in the storage part, and in the state where the holding part is stored, the first operation part faces the outside of the storage part.

[0100] Thereby, the user can operate the first operation part while storing the holding part, so the operability of the projection system is improved.

[0101] Appendix 6

[0102] A cart for a projector, which stores the projector and is movable, the cart for a projector includes: a storage part that can store the projector; wheels provided on the storage part; and a first operation part for changing the electrical state of the projector, and in the usage state, the first operation part is located above the storage part in the vertical direction.

[0103] Thereby, it is easy for the operator to operate the projector in an upright posture, so the operability of the projection system is improved.

[0104] Appendix 7

[0105] The cart for a projector according to Appendix 6, wherein the cart for a projector includes a holding part provided on the storage part, and in the usage state, the holding part is located above the storage part in the vertical direction, and the first operation part is provided on the holding part.

[0106] Thereby, the holding part can be used to move the projection system and operate the projector, and the operability of the projection system is improved.

[0107] Appendix 8

[0108] The trolley for a projector according to Note 7, wherein the storage portion includes: a first surface; a second surface opposed to the first surface; a third surface intersecting the first surface and the second surface; a fourth surface opposed to the third surface and intersecting the first surface and the second surface; a fifth surface intersecting the first surface, the second surface, the third surface, and the fourth surface; and a sixth surface opposed to the fifth surface and intersecting the first surface, the second surface, the third surface, and the fourth surface. A window portion for emitting the projection light of the projector to the outside of the storage portion is provided on at least one of the first surface and the fifth surface. Wheels are provided on the sixth surface, and a gripping portion is provided on the fifth surface. The gripping portion includes: a first support portion connected to the fifth surface; a second support portion connected to the fifth surface; and a connecting portion connecting the first support portion and the second support portion. The first operation portion is provided on the side of the first support portion opposite to the connecting portion in the vehicle width direction of the trolley for a projector.

[0109] Thereby, the risk of misoperation when the user grabs the connecting portion to move the trolley for a projector can be reduced.

[0110] Note 9

[0111] The trolley for a projector according to Note 7, wherein the storage portion includes: a first surface; a second surface opposed to the first surface; a third surface intersecting the first surface and the second surface; a fourth surface opposed to the third surface and intersecting the first surface and the second surface; a fifth surface intersecting the first surface, the second surface, the third surface, and the fourth surface; and a sixth surface opposed to the fifth surface and intersecting the first surface, the second surface, the third surface, and the fourth surface. A window portion for emitting the projection light of the projector to the outside of the storage portion is provided on at least one of the first surface and the fifth surface. Wheels are provided on the sixth surface, and a gripping portion is provided on the fifth surface. The gripping portion includes: a first support portion connected to the fifth surface; a second support portion connected to the fifth surface; and a connecting portion connecting the first support portion and the second support portion. The first operation portion is provided on the connecting portion.

[0112] Thereby, the risk of misoperation when the user grabs the first support portion and the second support portion to move the trolley for a projector is reduced.

[0113] Note 10

[0114] The cart for a projector according to Note 7, wherein the storage part includes: a first surface; a second surface opposed to the first surface; a third surface intersecting the first surface and the second surface; a fourth surface opposed to the third surface and intersecting the first surface and the second surface; a fifth surface intersecting the first surface, the second surface, the third surface, and the fourth surface; and a sixth surface opposed to the fifth surface and intersecting the first surface, the second surface, the third surface, and the fourth surface. A window part for emitting the projection light of the projector to the outside of the storage part is provided on at least one of the first surface and the fifth surface. Wheels are provided on the sixth surface, and a grip part is provided on the fifth surface. In the use state, the grip part includes a first support column part extending upward. One end of the first support column part is connected to the fifth surface, and the first operation part is provided on a part of the first support column part facing the direction from the first surface toward the second surface.

[0115] Thereby, the risk of misoperation when the user moves the cart for a projector is reduced.

[0116] Note 11

[0117] The cart for a projector according to any one of Notes 6 to 10, wherein the first operation part includes a button or an icon for turning on or off the power supply of the projector.

[0118] Thereby, the power supply operation of the projector can be performed using the grip part, so the operability of the projection system is improved.

[0119] Note 12

[0120] The cart for a projector according to any one of Notes 6 to 10, wherein the first operation part includes a button or an icon for performing trapezoidal correction of the image projected by the projector.

[0121] Thereby, the trapezoidal correction operation of the projector can be performed using the grip part, so the operability of the projection system is improved.

[0122] Note 13

[0123] The cart for a projector according to any one of Notes 8 to 12, wherein the cart for a projector includes a second operation part for changing the electrical state of the projector. The second operation part is provided on a side of the second support column part opposite to the connection part in the vehicle width direction of the cart for a projector. The first operation part includes a button or an icon for turning on or off the power supply of the projector, and the second operation part includes a button or an icon for performing trapezoidal correction of the image projected by the projector.

[0124] Accordingly, the holding portion can be used to move the projection system and operate the projector, improving the operability of the projection system.

[0125] Supplementary Note 14

[0126] The projector cart according to any one of Supplementary Notes 7 to 13, wherein, in the use state, at least a part of the holding portion is provided to be capable of being stored at a position equivalent to or below the position of the vertically upper surface in the storage portion, and in the state where the holding portion is stored, the first operation portion faces the outside of the storage portion.

[0127] Accordingly, the user can operate the first operation portion while storing the holding portion, thus improving the operability of the projection system.

[0128] Supplementary Note 15

[0129] The projector cart according to any one of Supplementary Notes 8 to 14, wherein, in the use state, the length in the vertical direction of the portion above the fifth surface in the first support portion is greater than the distance from the fifth surface to the sixth surface of the storage portion, and the distance from the fifth surface to the first operation portion is greater than the distance from the fifth surface to the sixth surface of the storage portion.

[0130] Accordingly, the operator can operate the first operation portion while maintaining an upright posture using the holding portion, thus improving the operability when storing the projector.

[0131] Supplementary Note 16

[0132] The projector cart according to any one of Supplementary Notes 8 to 15, wherein the first support portion has a hollow structure, and a circuit controlled by the operation of the first operation portion is provided in the hollow structure, and wiring electrically connected to the circuit reaches the storage portion via the hollow structure.

[0133] Accordingly, the projector can be operated in a wired manner with respect to the projector cart.

[0134] Supplementary Note 17

[0135] The projector cart according to any one of Supplementary Notes 8 to 15, wherein a circuit is provided in the first operation portion, and the circuit transmits a wireless signal to the projector according to the operation of the first operation portion.

[0136] Accordingly, the projector can be operated in a wireless manner with respect to the projector cart.

[0137] Supplementary Note 18

[0138] A method for setting up a projection system, wherein the projection system includes: a projector; a storage unit for storing the projector; wheels provided on the storage unit; a grip unit provided on the storage unit; and an operation unit provided on the grip unit for changing the electrical state of the projector. The setting method includes: gripping the grip unit to move the wheels; after moving the wheels, operating the operation unit to turn on the power of the projector; and after turning on the power, gripping the grip unit to adjust the position of the projection system.

[0139] Thereby, an operator can move and operate the projection system while maintaining an upright posture by using the grip unit, so that the operability of the projection system is improved.

Claims

1. A projection system, comprising: a projector; and a cart for the projector, which houses the projector, the projector includes: a housing; a light source unit housed in the housing; a light modulation unit housed in the housing for modulating light emitted from the light source unit; a projection lens unit for emitting the light modulated by the light modulation unit to the outside of the housing; and a power supply substrate unit housed in the housing for supplying power to the light source unit, in the use state of the projector, the cart for the projector includes: a storage unit capable of storing the projector and capable of emitting the light emitted from the projection lens unit to the outside of the cart for the projector; wheels provided vertically below the storage unit; and a first operation unit located vertically above the storage unit for changing the electrical state of the power supply substrate unit.

2. The projection system according to claim 1, wherein the cart for the projector includes a grip portion provided on the storage unit, the grip portion is located vertically above the storage unit in the vertical direction, the first operation unit is provided on the grip portion.

3. The projection system according to claim 2, wherein the first operation unit includes a button or icon for turning on or off the power of the projector.

4. The projection system according to claim 2, wherein the first operation unit includes a button or icon for causing the projector to perform trapezoidal correction of the image projected by the projector.

5. The projection system according to any one of claims 2 to 4, wherein in the use state of the projector, at least a part of the grip portion is set to be capable of being stored at a position equivalent to or below the position of the upper surface in the vertical direction in the storage unit, in the state where the grip portion is stored, the first operation unit faces the outside of the storage unit.

6. A cart for a projector, which houses a projector and is movable, the cart for the projector includes: a storage unit capable of storing the projector; wheels provided on the storage unit; and a first operation unit for changing the electrical state of the projector, in the use state, the first operation unit is located vertically above the storage unit in the vertical direction.

7. The cart for a projector according to claim 6, wherein the cart for the projector includes a grip portion provided on the storage unit, in the use state, the grip portion is located vertically above the storage unit in the vertical direction, the first operation unit is provided on the grip portion.

8. The cart for a projector according to claim 7, wherein the storage unit includes: a first surface; a second surface opposed to the first surface; a third surface intersecting the first surface and the second surface; a fourth surface opposed to the third surface and intersecting the first surface and the second surface; a fifth surface intersecting the first surface, the second surface, the third surface, and the fourth surface; and a sixth surface opposed to the fifth surface and intersecting the first surface, the second surface, the third surface, and the fourth surface, A window portion for emitting the projection light of the projector to the outside of the storage portion is provided on at least one of the first surface and the fifth surface. The wheel is provided on the sixth surface. The grip portion is provided on the fifth surface. The grip portion includes: a first support portion connected to the fifth surface; a second support portion connected to the fifth surface; and a connecting portion connecting the first support portion and the second support portion. The first operation portion is provided on the side of the first support portion opposite to the connecting portion in the vehicle width direction of the projector cart.

9. The projector cart according to claim 7, wherein The storage portion includes: a first surface; a second surface facing the first surface; a third surface intersecting the first surface and the second surface; a fourth surface facing the third surface and intersecting the first surface and the second surface; a fifth surface intersecting the first surface, the second surface, the third surface, and the fourth surface; and a sixth surface facing the fifth surface and intersecting the first surface, the second surface, the third surface, and the fourth surface. A window portion for emitting the projection light of the projector to the outside of the storage portion is provided on at least one of the first surface and the fifth surface. The wheel is provided on the sixth surface. The grip portion is provided on the fifth surface. The grip portion includes: a first support portion connected to the fifth surface; a second support portion connected to the fifth surface; and a connecting portion connecting the first support portion and the second support portion. The first operation portion is provided on the connecting portion.

10. The projector cart according to claim 7, wherein The storage portion includes: a first surface; a second surface facing the first surface; a third surface intersecting the first surface and the second surface; a fourth surface facing the third surface and intersecting the first surface and the second surface; a fifth surface intersecting the first surface, the second surface, the third surface, and the fourth surface; and a sixth surface facing the fifth surface and intersecting the first surface, the second surface, the third surface, and the fourth surface. A window portion for emitting the projection light of the projector to the outside of the storage portion is provided on at least one of the first surface and the fifth surface. The wheel is provided on the sixth surface. The grip portion is provided on the fifth surface. In the use state, the grip portion includes a first support portion extending upward, and one end of the first support portion is connected to the fifth surface. The first operation portion is provided on a portion of the first support portion facing the direction from the first surface toward the second surface.

11. The projector cart according to any one of claims 6 to 10, wherein The first operation portion includes a button or an icon for turning on or off the power of the projector.

12. The projector cart according to any one of claims 6 to 10, wherein The first operation portion includes a button or an icon for performing trapezoidal correction of the image projected by the projector.

13. The cart for a projector according to claim 8, wherein, the cart for a projector is provided with a second operation unit for changing the electrical state of the projector, the second operation unit is provided on the side of the second support portion opposite to the connection portion in the vehicle width direction of the cart for a projector, the first operation unit includes a button or an icon for turning on or off the power supply of the projector, the second operation unit includes a button or an icon for causing the projector to perform trapezoidal correction of an image projected by the projector.

14. The cart for a projector according to any one of claims 7 to 10, wherein, in the use state, at least a part of the grip portion is configured to be storable at a position equivalent to the vertically upward surface in the storage portion or below the vertically upward surface in the storage portion, in the state where the grip portion is stored, the first operation unit faces the outside of the storage portion.

15. The cart for a projector according to any one of claims 8 to 10, wherein, in the use state, the length in the vertical direction of the portion of the first support portion above the fifth surface is greater than the distance from the fifth surface to the sixth surface of the storage portion, and the distance from the fifth surface to the first operation unit is greater than the distance from the fifth surface to the sixth surface of the storage portion.

16. The cart for a projector according to any one of claims 8 to 10, wherein, the first support portion has a hollow structure, a circuit controlled by an operation of the first operation unit is provided in the hollow structure, wiring electrically connected to the circuit reaches the storage portion via the hollow structure.

17. The cart for a projector according to any one of claims 8 to 10, wherein, a circuit is provided in the first operation unit, the circuit transmits a wireless signal to the projector according to an operation of the first operation unit.

18. A method for setting up a projection system, wherein, the projection system includes: a projector; a storage portion for storing the projector; wheels provided on the storage portion; a grip portion provided on the storage portion; and an operation unit provided on the grip portion for changing the electrical state of the projector, the setting method includes: grasping the grip portion to move the wheels; after moving the wheels, operating the operation unit to turn on the power supply of the projector; and after turning on the power supply, grasping the grip portion to adjust the position of the projection system.

Images