Image processing apparatus and projector

Abstract

The utility model provides an image processing device and a projector, which can suppress the occurrence of poor operation and performance degradation of the image processing device when a wireless LAN (Local Area Network) is connected. An image processing apparatus includes: circuitry that processes an image; a housing for housing a circuit includes: a first side surface in which a first direction is a longitudinal direction; a second side surface facing the first side surface; a first surface disposed between the first side surface and the second side surface in a second direction orthogonal to the first direction; a second surface intersecting the first surface; a third surface that intersects the first surface and the second surface and connects the first surface and the second surface; a first terminal disposed on the first surface and connected to a communication cable; and a second terminal which is disposed on the first surface between the third surface and the first terminal, and to which a wireless communication sub-device is connected. In the housing, a first end of the first surface on the opposite side of an end intersecting the third surface in the first direction and an end of the first side surface close to the first end in the first direction are partially or entirely open in a range sandwiched between the first end of the first surface and the end thereof close to the first end in the first direction.

Description

Technical Field

[0001] The utility model relates to an image processing device. Background Art

[0002] Some image processing devices, such as projectors, receive video or images from the outside via a terminal.

[0003] For example, Patent Document 1 discloses a projector that displays an image based on an image signal input to a connection terminal. The projector disclosed in Patent Document 1 has an illumination for illuminating the connection terminal or the periphery of the connection terminal and a human sensor for detecting whether a person is near the connection terminal. Thus, even when the projector disclosed in Patent Document 1 is used in a dark environment, it is easy to insert a desired cable into a correct input / output terminal.

[0004] Patent Document 1: Japanese Patent Application Publication No. 2012-039251

[0005] In the projector disclosed in the above-mentioned patent document 1, a terminal capable of inserting a plurality of standard-type connection cables is provided on the side of the housing. In the same side, an expansion slot capable of being used as an expansion function for receiving input image signals such as a wireless LAN (Local Area Network) is provided in an area on the side closer to the installation surface of the projector than the area where a plurality of terminals are arranged for the standard-type connection cables. However, if a connection cable is inserted into the standard-type terminal and a wireless LAN sub-unit is inserted into the expansion slot, when the side of the housing is viewed from the front, there is a high possibility that the standard-type connection cable overlaps with the wireless LAN sub-unit or passes through the area adjacent to the wireless LAN sub-unit. In this case, the communication radio waves of the wireless LAN are affected by the conductors such as metal contained in the standard-type cable, the throughput of the projector is reduced, and the image emitted from the projector may be disturbed or stopped. Therefore, it is desirable to take measures to suppress the occurrence of malfunction and performance degradation of the image processing device when connecting to the wireless LAN. Utility Model Content

[0006] An image processing device according to one embodiment of the present invention comprises: a circuit that processes an image or a video; a housing that houses the circuit, comprising: a first side surface whose first direction is the long side direction; a second side surface opposite to the first side surface; a first surface that is arranged between the first side surface and the second side surface in a second direction that is orthogonal to the first direction; a second surface that intersects the first surface; and a third surface that intersects the first surface and the second surface and connects the first surface and the second surface; a first terminal that is arranged on the first surface and is connected to a communication cable; and a second terminal that is arranged on the first surface and is located between the third surface and the first surface. 1 terminal, a wireless communication sub-unit is connected between the first surface and the second side surface, when observed along the first axis parallel to the second direction, the first distance between the first surface and the second side surface is shorter than the second distance between the second surface and the second side surface, when observed along the first axis, the third distance between the first surface and the first side surface is shorter than the first distance, in the shell, a part or all of the range sandwiched by the first end of the first surface and the end of the first side surface close to the first end in the first direction is open, and the first end of the first surface is the end on the opposite side of the end of the first surface intersecting with the third surface in the first direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a schematic diagram showing the structure of the projector according to this embodiment.

[0008] Figure 2 yes Figure 1 Top view of the projector.

[0009] Figure 3 yes Figure 1 Side view of the projector.

[0010] Figure 4 yes Figure 1 Side view of the projector.

[0011] Figure 5 yes Figure 1 Stereoscopic image of a projector.

[0012] Description of symbols

[0013] 10: housing; 100: projector (image processing device); 132, 133: circuit mounting board (circuit). DETAILED DESCRIPTION

[0014] Hereinafter, the embodiments of the present invention will be described using the drawings. In each of the drawings, in order to make each component easier to see, the scale of the dimensions may be changed depending on the component.

[0015] Reference Figures 1 to 5An embodiment of the present invention will be described. Figure 1 1 is a schematic diagram showing a structure of a projector 100 according to an embodiment of the present invention. Figure 2 It is a plan view of the projector 100 , and is a schematic view of a state where an upper wall portion 16 described later is removed. Figure 3 It is a side view of the projector 100 , and is a schematic diagram of a state where a side wall portion 14 and an upper wall portion 16 described later are removed.

[0016] The projector 100 is an image display device that projects images and videos onto a large screen (not shown) based on image information input from the outside and includes three liquid crystal panels as light modulation devices. Figures 1 to 3 As shown, the projector 100 includes a housing 10 , a light source device 50 , a light modulation device 60 , a projection optical device 80 , a plurality of circuit mounting boards 120 , and a plurality of fans 200 .

[0017] The housing 10 accommodates various devices including the light source device 50, various components, and a plurality of fans 200 for realizing the function of displaying images and videos in the projector 100 as described above. The housing 10 has a bottom wall 12, side walls 14, and an upper wall 16.

[0018] The projector 100 is placed on a table (not shown) when in use. The bottom wall 12 is opposite to the table. A plurality of legs penetrate the bottom wall 12 from the internal space S of the housing 10 and protrude toward the installation surface of the table. One of the legs 20 is configured to be able to adjust the length of the protrusion from the bottom wall 12. By adjusting the length of the leg 20 protruding from the outer wall surface 12b of the bottom wall 12, the angle at which the inner wall surface 12a and the outer wall surface 12b of the bottom wall 12 are inclined relative to the installation surface of the table is adjusted. The length of the remaining legs 22 protruding from the bottom wall 12 is fixed.

[0019] In the following description, an axis parallel to the inner wall surface 12a and the outer wall surface 12b of the bottom wall portion 12 is set as the X axis, and an axis parallel to the inner wall surface 12a and the outer wall surface 12b of the bottom wall portion 12 and perpendicular to the X axis is set as the Y axis. An axis perpendicular to the X axis and the Y axis is set as the Z axis. The Z axis refers to the height direction of the projector 100. One side of the X axis and the Y axis is called the +X side and the +Y side, and the other side of the X axis and the Y axis is called the -X side and the -Y side. One side of the Z axis, that is, the side from the inner wall surface 12a and the outer wall surface 12b of the bottom wall portion 12 toward the upper wall portion 16 is called the +Z side, and the other side of the Z axis is called the -Z side.

[0020] The top view shape of the bottom wall portion 12 when observed along the Z axis is a rectangle. The length of the X axis of the bottom wall portion 12 is longer than the length of the Y axis of the bottom wall portion 12. The two corners on the +X side and the corners on the -X side and +Y side of the bottom wall portion 12 are curved and chamfered. The corners on the -X side and -Y side of the bottom wall portion 12 are cut off along the X axis and the Y axis. The outer peripheral edge of the corners on the -X side and -Y side of the bottom wall portion 12 extends parallel to the Y axis from the end on the -X side of the outer peripheral edge on the -Y side of the bottom wall portion 12 parallel to the X axis to a position that advances a predetermined distance toward the +Y side, and extends parallel to the X axis from this position to the end on the -Y side of the outer peripheral edge on the -X side of the bottom wall portion 12 parallel to the Y axis.

[0021] The bottom wall portion 12 includes a flat portion 12A and a convex portion 12B. The flat portion 12A extends from the outer periphery of the XY plane including the X-axis and the Y-axis toward the center by a predetermined length. The convex portion 12B protrudes from the inner periphery of the flat portion 12A toward the -Z side, and is concave when viewed from the +Z side of the bottom wall portion 12. The height of the convex portion 12B is shorter than the shortest length of the leg portion 20 protruding from the outer wall surface 12b of the flat portion 12A of the bottom wall portion 12, and is shorter than the length of the leg portion 22 protruding from the outer wall surface 12b.

[0022] A recess 12G is formed in the convex portion 12B. The recess 12G is formed in the center of the X-axis of the convex portion 12B, and is formed from the end of the -Y side of the convex portion 12B to a position halfway along the Y-axis to the +Y side. The recess 12G is recessed toward the +Z side from the bottom wall portion 12 extending parallel to the XY plane in the convex portion 12B. The width of the recess 12G in the X-axis is smaller than the width of the convex portion 12B in the X-axis. The foot 20 passes through the center of the X-axis of the recess 12G and the end of the -Y side of the Y-axis. The height of the recess 12G on the Z-axis is smaller than the depth of the convex portion 12B on the Z-axis. In a state where the length of the foot 20 protruding from the outer wall surface 12b of the bottom wall portion 12 is the shortest, the end of the foot 20 on the -Z side also protrudes further toward the -Z side than the outer wall surface 12b of the bottom wall portion of the convex portion 12B. The two legs 22 penetrate the flat portion 12A and the convex portion 12B at both ends of the bottom wall 12 on the X axis and the +Y side of the Y axis. The -Z side end of the leg 22 protrudes further to the -Z side than the outer wall surface 12b of the bottom wall of the convex portion 12B.

[0023] The side wall portion 14 includes wall portions 14A, 14B, 14C, 14D, connecting portions 15A, 15B, 15C, and a wall portion 30. The wall portion 14A stands up toward the +Z side of the bottom wall portion 12 along the outer peripheral edge of the -Y side parallel to the X axis, and extends along the X axis. The inner wall surface and the outer wall surface of the wall portion 14A are parallel to the XZ plane including the X axis and the Z axis. The wall portion 14B stands up toward the +Z side of the bottom wall portion 12 along the outer peripheral edge of the +X side parallel to the Y axis, and extends along the Y axis. The inner wall surface and the outer wall surface of the wall portion 14B are parallel to the YZ plane including the Y axis and the Z axis. The wall portion 14C stands up toward the +Z side of the bottom wall portion 12 along the outer peripheral edge of the +Y side parallel to the X axis, and extends along the X axis. The inner wall surface and the outer wall surface of the wall portion 14C are parallel to the XZ plane. The wall portion 14D rises along the outer peripheral edge of the bottom wall portion 12 on the -X side parallel to the Y axis toward the +Z side of the bottom wall portion 12 and extends along the Y axis. The inner wall surface and the outer wall surface of the wall portion 14D are parallel to the YZ plane.

[0024] The connecting portion 15A is erected toward the +Z side of the bottom wall portion 12 along the outer periphery of the corner connecting the outer periphery on the -Y side parallel to the X axis and the outer periphery on the +X side parallel to the Y axis, and connects the end on the +X side of the wall portion 14A to the end on the -Y side of the wall portion 14B, and is curved in the XY plane. The connecting portion 15B is erected toward the +Z side of the bottom wall portion 12 along the outer periphery of the corner connecting the outer periphery on the +X side parallel to the Y axis and the outer periphery on the +Y side parallel to the X axis, and connects the end on the +Y side of the wall portion 14B to the end on the +X side of the wall portion 14C, and is curved in the XY plane. The connecting portion 15C is erected toward the +Z side of the bottom wall portion 12 along the outer periphery of the corner connecting the outer periphery on the +Y side parallel to the X axis and the outer periphery on the -X side parallel to the Y axis, connecting the end on the -X side of the wall portion 14C with the end on the +Y side of the wall portion 14D, and is curved on the XY plane. The connecting portion 15D is connected to the end on the -Y side of the wall portion 14D, and is curved in a manner that convexes toward the -X side and the -Y side from the end on the -Y side of the wall portion 14D toward the end on the -X side of the wall portion 14A. The end on the +X side of the connecting portion 15D is separated from the end on the -X side of the wall portion 14A. The end on the +X side of the connecting portion 15D is open to the end on the -X side of the wall portion 14A.

[0025] The wall portion 30 is adjacent to the wall portion 14D on the X axis and is arranged on the +X side of the wall portion 14D. The wall portion 30 has a plurality of small wall portions. The plurality of small wall portions constitute the bottom wall portion, the side wall portion, and the upper wall portion of the wall portion 30. The wall portion 30 will also be described later.

[0026] exist Figure 1In the figure, a part of a small wall portion 31 and a small wall portion 32 are observed among the multiple small wall portions of the wall portion 30 between the end of the connecting portion 15D on the +X side of the side wall portion 14 and the end of the wall portion 14A on the -X side. The small wall portion 31 is located between the middle positions of the wall portion 14D and the wall portions 14B and 14D of the side wall portion 14 on the X axis, and is arranged at the same position as the end of the wall portion 14A on the -X side of the side wall portion 14. The small wall portion 31 has a wall surface 31s on the +X side and a wall surface 31t on the -X side parallel to the YZ plane. The end of the small wall portion 31 on the -Y side is connected to the end of the wall portion 14A on the -X side of the side wall portion 14. The end of the small wall portion 31 on the +Y side is arranged at a position closer to the -Y side than the end of the wall portion 14D on the +Y side of the side wall portion 14, and is arranged near the center of the Y axis of the bottom wall portion 12.

[0027] The small wall portion 32 overlaps the end of the bottom wall portion 12 on the -X side and the -Y side from the +Z side on the Z axis. A portion of the inner wall surface on the +Y side of the small wall portion 32 is located closer to the +Z side than the inner wall surface on the -Y side. The outer wall surface of the small wall portion 32 is parallel to the XY plane.

[0028] exist Figure 2 In the figure, a small wall portion 33 can be seen among the multiple small wall portions of the wall portion 30. The small wall portion 33 overlaps with the -X side and -Y side portions of the upper wall portion 16 from the -Z side on the Z axis. The wall surface 33s on the +Z side and the wall surface 33t on the -Z side of the small wall portion 33 are parallel to the XY plane.

[0029] The small wall portion 35 is connected to the end on the +Y side of the small wall portion 31 and the end on the +Y side of the portion of the small wall portion 32 where the inner wall surface protrudes toward the +Z side from the end on the -Y side. The wall portion 30 extending toward the -Y side from the small wall portion 35 constitutes a space for accommodating various components and includes a small wall portion for dividing a plurality of spaces.

[0030] like Figures 1 to 3 As shown in FIG. 1 , the top view shape of the upper wall portion 16 when viewed along the Z axis is a rectangle, which is the same as the top view shape of the bottom wall portion 12 except for the corners on the -X side and the -Y side. The corners on the -X side and the -Y side of the upper wall portion 16 are curved and chamfered like the other three corners. The upper wall portion 16 is configured to block the internal space S surrounded by the bottom wall portion 12, the wall portions 14A, 14B, 14C of the side wall portion 14, the connecting portions 15A, 15B, 15C, and the wall portion 30 from the +Z side. The upper wall portion 16 can be attached to and detached from the side wall portion 14 and the wall portion 30.

[0031] The upper wall portion 16 has flat portions 16A, 16B and a recessed portion 16C. The flat portion 16A extends over the entire X-axis of the upper wall portion 16, and extends from a portion of the upper wall portion 16 slightly closer to the -Y side than the center portion of the Y-axis to the outer peripheral edge on the -Y side. The inner wall surface and the outer wall surface of the flat portion 16A are parallel to the XY plane. The flat portion 16B extends over the entire X-axis of the upper wall portion 16, and is parallel to the XY plane, and extends from a portion of the upper wall portion 16 that is away from the center portion of the Y-axis toward the +Y side to the outer peripheral edge on the +Y side. The inner wall surface and the outer wall surface of the flat portion 16B are parallel to the XY plane. The recessed portion 16C is arranged over the entire X-axis of the upper wall portion 16, and connects the flat portions 16A and 16B on the Y-axis. The outer periphery of the XY plane of the recessed portion 16C is composed of the outer periphery parallel to the X-axis on the +X side and -X side of the upper wall portion 16 between the flat portions 16A and 16B, the outer periphery parallel to the X-axis on the +Y side of the flat portion 16A, and the outer periphery parallel to the X-axis on the -Y side of the flat portion 16B. The recessed portion 16C is recessed from the outer periphery of the XY plane toward the center area.

[0032] The recess 16C has small wall portions 17, 18A, 18B, 18C, and 18D. The small wall portion 17 is arranged at the bottom of the recess 16C and constitutes the aforementioned central area of ​​the XY plane of the recess 16C. The top view shape of the small wall portion 17 is a shape obtained by reducing the top view shape of the upper wall portion 16 at a predetermined ratio on the X axis and the Y axis. The small wall portion 17 protrudes toward the +Z side as it moves toward the center from the end on the +X side and the end on the -X side to a predetermined distance on the X axis, and is parallel to the XY plane from a predetermined position to the center.

[0033] A human sensing sensor 28 is disposed on the small wall portion 17. The human sensing sensor 28 is disposed at the center of the portion of the outer wall surface of the small wall portion 17 parallel to the XY plane on the X-axis, and is disposed at a position closer to the -Y side than the projection port 25 described later. The human sensing sensor 28 detects a person or object existing in the range of blocking the image light L emitted from the projection port 25 around the projection port 25. When a person or object existing in the range of blocking the image light L is detected by the human sensing sensor 28, the projector 100 sends an electrical signal to the circuit mounting board 132 or the circuit mounting board 133 described later, and stops the projection of the image light L from the projection port 25.

[0034] The small wall portion 18A connects the outer periphery of the +Y side parallel to the X axis of the recess 16C to the outer periphery of the +Y side and +Z side of the small wall portion 17. The width of the small wall portion 18A on the X axis decreases as it moves from the +Y side to the -Y side. The small wall portion 18B connects the outer periphery of the +X side parallel to the Y axis of the recess 16C to the outer periphery of the +X side and +Z side parallel to the Y axis of the small wall portion 17. The width of the small wall portion 18B on the Y axis decreases as it moves from the +X side to the -X side. The small wall portion 18C connects the outer periphery of the -Y side parallel to the X axis of the recess 16C to the outer periphery of the +Y side and -Z side parallel to the X axis of the small wall portion 17. The width of the small wall portion 18C on the X axis decreases as it moves from the +Y side to the -Y side. The small wall portion 18D connects the outer peripheral edge of the concave portion 16C on the -X side parallel to the Y axis with the outer peripheral edge of the small wall portion 17 on the -X side parallel to the Y axis. The width of the small wall portion 18D on the Y axis decreases as it moves from the -X side to the +X side. The small wall portions 18A, 18B, 18C, and 18D are inclined relative to the XY plane.

[0035] A projection port 25 is formed at the end of the small wall portion 18C at the center of the X axis and on the -Y side. The projection port 25 has a rectangular shape when viewed from the Z axis. The dimension of the projection port 25 on the X axis is shorter than the length of the recess 16C on the X axis. The dimension of the projection port 25 on the Y axis is smaller than the dimension of the projection port 25 on the X axis. A light-transmitting plate 26 having light transmittance with respect to the image light L emitted from the internal space S is provided at the projection port 25. The image light L is emitted from the projection port 25 to the -Y side and the +Z side, and is projected onto a screen (not shown) arranged on the -Y side and the +Z side of the projector 100.

[0036] The small wall portion 18C is provided with an object detection sensor 27. The object detection sensor 27 is provided at the center of the X axis and on the +Y side of the projection port 25 in the small wall portion 18C. The object detection sensor 27 detects foreign matter including dust and garbage at the projection port 25. When the foreign matter at the projection port 25 is detected by the object detection sensor 27, the projector 100 sends an electrical signal to the circuit mounting board 132 or the circuit mounting board 133 to stop projecting the image light L from the projection port 25.

[0037] like Figure 2As shown, the internal space S of the housing 10 is surrounded by the bottom wall 12, the wall portions 14A, 14B, 14C and the connecting portions 15A, 15B, 15C of the side wall 14, the upper wall 16, and the wall 30. The internal space S contains a light source device 50, a light modulation device 60, a reflector 70, a projection optical device 80, a plurality of circuit mounting boards 120, and a plurality of fans 200. The light source device 50, the light modulation device 60, and the projection optical device 80 are configured to project an image or video onto a large screen (not shown) based on image information input from the outside of the projector 100, thereby displaying the image or video using the projector 100.

[0038] in addition, Figure 2 The ranges of the light source device 50 , the light modulation device 60 , and the projection optical device 80 shown do not represent the strict outlines of the respective devices, but are shown as rough shapes in order to represent the relative positional relationship between the respective devices in the internal space S.

[0039] The light source device 50 is disposed in the internal space S at the +X side and −Y side ends of the housing 10 . The light source device 50 includes a light source 52 and a single or multiple optical elements (not shown) for deflecting light emitted from the light source 52 toward the light modulator 60 .

[0040] The light source 52 includes, for example, a light source substrate, a light emitting element, and a wavelength conversion element. The light source substrate is disposed at the end on the +Y side of the light source device 50. The light source substrate stands vertically relative to the inner wall surface 12a of the bottom wall portion 12 of the housing 10 that is parallel to the XY plane, and has a board surface that is parallel to the XZ plane. The light emitting element is disposed on the board surface on the -Y side of the board surface of the light source substrate that is parallel to the XZ plane. Wiring for providing electrical signals to the light emitting element is disposed in an area of ​​the board surface of the light emitting substrate where the light emitting element is not disposed. The light source substrate is connected to a circuit mounting board 136 described later via a cable not shown in the figure.

[0041] The light emitting element has a light emitting surface on the opposite side of the surface of the plate facing the -Y side of the light source substrate. The light emitting element emits a predetermined color light from the light emitting surface. The predetermined color light is, for example, blue light, but it only needs to include a color light that can excite the wavelength conversion element. The light emitting element is, for example, a light emitting diode (LED).

[0042] The wavelength conversion element is disposed in the light source device 50 on the optical path of the colored light emitted from the light emitting element, and is arranged in a region on the -Y side of the light emitting element. The wavelength conversion element may also be stacked on the light emitting surface of the light emitting element. The wavelength conversion element is excited by at least a portion of the colored light incident from the light emitting element, and emits colored light having a wavelength different from the colored light from the light emitting element. The colored light emitted from the wavelength conversion element is, for example, yellow light. The wavelength conversion element emitting yellow light is formed, for example, of a ceramic phosphor of the yttrium aluminum garnet (YAG) series, such as YAG (YAG: Ce) activated by cerium (Ce). 3+ ).

[0043] Optical elements of the light source device 50 include, for example, a lens for collimating or focusing light emitted from the light source 52 , a reflector for refracting the path of light emitted from the light source 52 , or a polarizing element for emitting predetermined polarized light among incident color light.

[0044] In the light source device 50, part of the colored light emitted from the light emitting element is incident on the wavelength conversion element, and part of the incident colored light is converted into other colored light by the wavelength conversion element. The other colored light is emitted in all directions including the direction from the wavelength conversion element toward the -Y side. At least part of the remaining colored light incident on the wavelength conversion element passes through the wavelength conversion element and is emitted from the wavelength conversion element to the side opposite to the light emitting element, that is, the -Y side. As a synthetic colored light, white light including blue light and yellow light, for example, is emitted from the wavelength conversion element along the Y-axis to the -Y side. The colored light emitted from the wavelength conversion element is deflected toward the -X side along the X-axis through the optical element of the light source device 50 and is guided to the light modulation device 60.

[0045] The light modulator 60 is disposed in the internal space S at the end of the +X side and the -Y side of the center of the X axis of the housing 10, adjacent to the light source device 50, and disposed at the -X side of the light source device 50. The light modulator 60 includes a plurality of optical elements (not shown) for separating the composite color light emitted from the light source device 50 and guiding the composite color light to the light modulator, three light modulator elements 62B, 62G, and 62R, and a light synthesizing element 64.

[0046] The light modulator 60 includes a plurality of optical elements for separating the synthesized color light and guiding the synthesized color light to the light modulator element, for example, a dichroic mirror for separating the white light emitted from the light source device 50 into red light and two-color light including green light and blue light, a dichroic mirror for separating the two-color light into green light and blue light, a reflector for reflecting the blue light toward the light modulator element 62B, a reflector for reflecting the green light toward the light modulator element 62G, a reflector for reflecting the red light toward the light modulator element 62R, a field lens corresponding to each color light, an incident side polarizer, an exit side polarizer, etc.

[0047] The light modulator 62B is arranged on the optical path of the blue light of a specified polarization emitted from the above-mentioned incident side polarizing plate arranged corresponding to the blue light. The light modulator 62B stands vertically relative to the inner wall surface 12a of the bottom wall portion 12 of the housing 10 which is parallel to the XY plane, and has a modulation surface parallel to the XZ plane. The light modulator 62B is, for example, a liquid crystal panel. In the light modulator 62B, the area overlapping with the modulation surface on the Z axis is composed of a liquid crystal element, and has a plurality of pixels arranged on the X axis and the Z axis. The plurality of pixels are provided with a switching element composed of, for example, a polysilicon thin film transistor (TFT). The switching element operates according to the electrical signal input to each pixel from the circuit mounting board 135 described later. The light modulator 62B modulates the incident blue light according to the image or video projected by the projector 100.

[0048] The light modulator 62G is arranged on the optical path of the green light of the prescribed polarization emitted from the above-mentioned incident side polarizing plate arranged corresponding to the green light. The light modulator 62G stands vertically relative to the inner wall surface 12a of the bottom wall portion 12 of the housing 10 which is parallel to the XY plane, and has a modulation surface parallel to the YZ plane. The light modulator 62G is arranged at a position closer to the +X side and the +Y side than the light modulator 62B, and is arranged at the same height as the light modulator 62B on the Z axis. The light modulator 62G is, for example, a liquid crystal panel. In the light modulator 62G, the area overlapping with the modulation surface on the X axis is composed of liquid crystal elements. The light modulator 62G has a plurality of pixels arranged on the Y axis and the Z axis and constructed in the same manner as the pixels of the light modulator 62B. The switch element of each pixel of the light modulator 62G operates according to the electrical signal input from the circuit mounting board 135. The light modulator 62G modulates the incident green light according to the image or image projected by the projector 100.

[0049] The light modulator 62R is arranged on the optical path of the red light of the prescribed polarization emitted from the above-mentioned incident side polarizing plate arranged corresponding to the red light. The light modulator 62R stands vertically relative to the inner wall surface 12a of the bottom wall portion 12 of the housing 10 which is parallel to the XY plane, and has a modulation surface parallel to the XZ plane. The light modulator 62R is arranged at a position closer to the -X side and the +Y side than the light modulator 62G, overlaps with the light modulator 62B on the X axis, and is arranged at the same height as the light modulators 62B and 62G on the Z axis. The light modulator 62R is, for example, a liquid crystal panel. In the light modulator 62R, the area overlapping with the modulation surface on the X axis is composed of liquid crystal elements. The light modulator 62R has a plurality of pixels arranged on the X axis and the Z axis, which are constructed in the same manner as the pixels of the light modulators 62B and 62G. The switch element of each pixel of the light modulator 62R operates according to the electrical signal input from the circuit mounting board 135. The light modulation element 62R modulates the incident red light according to the image or video projected by the projector 100 .

[0050] The emitting-side polarizing plate corresponding to blue light is arranged on the +Y side with respect to the light modulator 62B, and emits a predetermined polarized light of the blue image light emitted from the light modulator 62B. The emitting-side polarizing plate corresponding to green light is arranged on the -X side with respect to the light modulator 62G, and emits a predetermined polarized light of the green image light emitted from the light modulator 62G. The emitting-side polarizing plate corresponding to red light is arranged on the -Y side with respect to the light modulator 62R, and emits a predetermined polarized light of the red image light emitted from the light modulator 62R.

[0051] The photosynthetic element 64 is arranged on the optical path of the three-color image light emitted from the three emission-side polarizing plates corresponding to the blue, green and red image light, and is arranged centered on the position where the three-color image light overlaps with each other. The photosynthetic element 64 is arranged in the area surrounded by the light modulating elements 62B, 62G, and 62R when viewed from above along the Z axis. The photosynthetic element 64 is, for example, a cross dichroic prism formed in a cubic shape. The side surface and the incident surface of the photosynthetic element 64 are arranged on the Z axis at the same height as the modulation surface and modulation area of ​​the light modulating elements 62B, 62G, and 62R. The photosynthetic element 64 synthesizes the blue image light incident from the -Y side, the green image light incident from the +X side, and the red image light incident from the +Y side to generate a full-color image light L. The photosynthetic element 64 emits the image light L along the X axis toward the -X side.

[0052] The synthesized light incident from the light source device 50 to the light modulator 60 is converted into three-color predetermined polarized light by a plurality of optical elements of the light modulator 60. The three-color polarized light is converted into three-color image light corresponding to an image or video by the light modulators 62B, 62G, and 62R and the emission-side polarizing plate. The three-color image light is synthesized by the light synthesizer 64. The image light L generated by the light synthesizer 64 is emitted toward the -X side along the X-axis from the side surface that is not opposite to any modulation surface of the light modulators 62B, 62G, and 62R.

[0053] The reflector 70 is disposed on the optical path of the image light L emitted from the light modulator 60. The reflector 70 stands vertically with respect to the inner wall surface 12a of the bottom wall portion 12 of the housing 10 that is parallel to the XY plane, and has a reflective surface that is inclined toward the XZ plane and the YZ plane. When viewed from above along the Z axis, the reflective surface of the reflector 70 moves toward the -Y side when moving from the end on the -X side to the end on the +X side.

[0054] The image light L emitted from the light modulator 60 is irradiated onto the reflection surface of the reflection mirror 70 , and is reflected by the reflection surface, thereby being deflected toward the +Y side along the Y axis and guided to the projection optical device 80 .

[0055] The projection optical device 80 is disposed in the inner space S at the center of the X axis of the housing 10 and in the inner space S from the center to the end on the +Y side of the Y axis of the housing 10. The projection optical device 80 is disposed on the optical path of the image light L deflected by the reflector 70. The projection optical device 80 includes a plurality of optical elements (not shown) for guiding the image light L emitted from the light modulator 60 and deflected by the reflector 70 to the projection port 25.

[0056] The optical element of the projection optical device 80 guides the image light L emitted by the reflector 70 to the end on the +Y side along the magnification direction, and then emits it to the -Y side and the +Z side toward the light-transmitting plate 26 provided at the projection port 25. The optical element of the projection optical device 80 includes, for example, an optical lens and a reflector. The optical lens includes, for example, a plano-convex lens, a plano-concave lens, a biconvex lens, a biconcave lens, a meniscus lens, an aspherical lens, a free-form surface lens, and the like.

[0057] The image light L that enters the projection optical device 80 from the light modulation device 60 via the reflection mirror 70 passes through a plurality of optical elements of the projection optical device 80 and is projected onto a screen (not shown) as an enlarged image.

[0058] like Figure 2 and Figure 3As shown, the plurality of circuit mounting boards 120 include circuit mounting boards 131, 132, 133, 134, and 135, and also include circuit mounting boards not shown in the figure. In the present specification, the circuit mounting board 120 refers to a circuit mounting board in which the terminals and conducting parts of the circuit components are directly fixed to wiring not shown in the figure formed on one or both sides of the board surface of the substrate 122 by welding or the like. The wiring is composed of a conductor, formed on the board surface or inside the substrate 122, and extended on a surface parallel to the board surface. The substrate 122 is, for example, a printed circuit board. Circuit components include, for example, resistors, capacitors, amplifiers, transistors, diodes, integrated circuits, and connectors, and there is no particular limitation as long as they can be mounted on the circuit mounting board 120.

[0059] The circuit mounting board 131 is arranged in the internal space S on the -X side of the housing 10 from the center of the X axis and in the internal space S from the center to the -Y side end of the housing 10 on the Y axis. The circuit mounting board 131 is arranged in the internal space S on the +Z side of the flat portion 12A of the bottom wall portion 12 of the housing 10 on the Z axis, and is supported by the housing 10 by a supporting member not shown. The substrate 122 of the circuit mounting board 131 has a board surface parallel to the XY plane.

[0060] The circuit mounting board 131 is connected to the light modulator 60 via a cable (not shown). The circuit mounting board 131 receives an electrical signal related to an image or video projected by the projector 100, and converts the electrical signal including information corresponding to each pixel of the three light modulators 62R, 62G, and 62B of the light modulator 60 into an electrical signal indicating the timing of lighting / extinguishing, using the circuit components mounted on the board surface on the main-Z side of the substrate 122. The circuit mounting board 131 provides the converted electrical signal to the three light modulators 62R, 62G, and 62B of the light modulator 60 via the cable.

[0061] The circuit mounting board 132 is arranged in the internal space S on the -X side of the housing 10 relative to the center of the X axis and the internal space S from the +Y side of the housing 10 relative to the center of the Y axis to the end on the -Y side. The circuit mounting board 132 is arranged in the internal space S on the +Z side relative to the flat portion 12A of the bottom wall portion 12 of the housing 10 on the Z axis, and is supported by the housing 10 by a supporting member not shown. The circuit mounting board 132 is provided at a distance from the circuit mounting board 131 on the Z axis, and is arranged on the +Z side relative to the circuit mounting board 131. The circuit mounting board 132 overlaps with the circuit mounting board 131 when viewed along the Z axis, and extends to the +Y side relative to the circuit mounting board 131. The substrate 122 of the circuit mounting board 132 has a board surface parallel to the XY plane.

[0062] The circuit mounting board 133 is arranged in the internal space S of the housing 10 which is closer to the -X side than the center of the X axis and in the internal space S from the housing 10 which is slightly closer to the +Y side than the center of the Y axis to the end on the -Y side. The circuit mounting board 133 is arranged in the internal space S which is closer to the +Z side than the flat portion 12A of the bottom wall portion 12 of the housing 10 on the Z axis, and is supported by the housing 10 by a supporting member which is not shown in the figure. The circuit mounting board 133 is provided at a distance from the circuit mounting board 132 on the Z axis, and is arranged closer to the +Z side than the circuit mounting board 132. When viewed along the Z axis, the circuit mounting board 133 overlaps with the circuit mounting board 131 and the circuit mounting board 132. The substrate 122 of the circuit mounting board 133 has a board surface parallel to the XY plane.

[0063] The circuit mounting boards 132 and 133 are connected to at least one of the light source device 50, the light modulation device 60, the object detection sensor 27, and the human sensing sensor 28 via cables (not shown). The circuit mounting boards 132 and 133 receive electrical signals from a power cable, a plurality of types of communication cables, and a wireless LAN sub-unit 451 connected to a terminal 410 (described later) provided on the small wall portion 31 of the wall portion 30 of the housing 10. The circuit mounting board 132 generates electrical signals for controlling the device and sensor connected to the control target by the cable using circuit components mounted on the board surface of the substrate 122. The circuit mounting board 132 provides the generated electrical signals to the device and sensor to be controlled via the cable.

[0064] On the board surface on the +Z side of the circuit mounting board 133, a heat sink 142 is installed at intervals on the Z axis. The heat sink 142 has a board surface parallel to the XY plane and is arranged on the +Z side of the circuit mounting board 133. The heat sink 142 is connected to the circuit mounting board 133 from the +Z side by a plurality of rod-shaped components extending along the Z axis. Circuit components such as integrated circuits (not shown) are mounted on the board surface on the -Z side of the heat sink 142. The circuit mounting board 133 uses the circuit components mounted on the board surface of the substrate 122 to generate an electrical signal for controlling the device and sensor connected by the cable as the control object. The circuit mounting board 133 provides the generated electrical signal to the device and sensor as the control object via the cable.

[0065] A wireless LAN slave 451 built into the projector 100 is arranged in the internal space S closer to the +Y side than the end of the circuit mounting board 132 on the +Y side. The wireless LAN slave 451 overlaps with the substrate of the circuit mounting board 132 on the X axis. The wireless LAN slave 451 is connected to the circuit of the circuit mounting board 132 via a cable (not shown). Images and pictures from a device such as a computer (not shown) outside the projector 100 are wirelessly transmitted to the wireless LAN slave 451. The images and pictures received by the wireless LAN slave 451 are output to the circuit mounting board 132 via the wireless LAN slave 451 and converted into appropriate electrical signals.

[0066] The circuit mounting board 135 is arranged in the internal space S of the housing 10 slightly closer to the +X side than the center of the X axis and in the internal space S at the end of the -Y side of the housing 10. The circuit mounting board 135 is arranged in the internal space S closer to the +Z side than the flat portion 12A of the bottom wall portion 12 of the housing 10 on the Z axis, and is supported by the housing 10 by a supporting member not shown. The circuit mounting board 135 is arranged at a position closer to the +Z side than the circuit mounting boards 131 and 132, and is arranged at the same height on the Z axis as the circuit mounting board 133. The substrate 122 of the circuit mounting board 135 has a board surface parallel to the XY plane.

[0067] The circuit mounting board 135 overlaps with the light modulator 60 when viewed along the Z axis, and is arranged on the +Z side of the light modulator 60. The circuit components of the circuit mounting board 135 are mainly mounted on the board surface on the -Z side of the substrate 122. On the substrate 122 of the circuit mounting board 135, the sheet-shaped electrode components of the light modulator elements 62B, 62G, and 62R of the light modulator 60 pass through from the -Z side to the +Z side along the Z axis, and are supported by the board surface on the +Z side. The circuit mounting board 135 receives electrical signals related to the image or video projected by the projector 100 from the circuit mounting boards 131, 132, and 133. The circuit mounting board 135 uses the circuit components 150 mounted on the substrate 122 to control the three light modulator elements 62B, 62G, and 62R of the light modulator 60 according to the above-mentioned electrical signals, and generates blue, green, and red image lights in a desired pattern and timing.

[0068] The circuit mounting board 136 is arranged in the internal space S at the +X side end and the -Y side end of the housing 10. The circuit mounting board 136 is arranged in the internal space S on the +Z side of the flat portion 12A of the bottom wall portion 12 of the housing 10 on the Z axis, and is supported by the housing 10 by a supporting member not shown. The circuit mounting board 136 is arranged at the same height as the circuit mounting board 135 on the Z axis. The substrate 122 of the circuit mounting board 136 has a board surface parallel to the XY plane.

[0069] Most of the circuit mounting board 136 overlaps with the light source device 50 when viewed along the Z axis, and is arranged at a position closer to the +Z side than the light source device 50. The circuit components of the circuit mounting board 136 are mainly mounted on the board surface on the -Z side. The circuit mounting board 136 receives an electrical signal to be provided to the light source 52 according to the image or video projected by the projector 100 from the circuit mounting boards 131, 132, and 133. The circuit mounting board 136 uses the circuit components mounted on the substrate 122 to control the light source 52 according to the received electrical signal, so that the light source 52 emits white light at a desired timing and pattern.

[0070] A plurality of fans 200 are included in Figures 1 to 3The fans 200 are arranged in the internal space S of the housing 10 at positions different from the light source device 50 , the light modulation device 60 , the projection optical device 80 , the circuit mounting boards 120 , and various components.

[0071] One or more of the plurality of fans 200 sucks in the external air of the projector 100 from the air intake port formed at an appropriate position of the bottom wall portion 12 via a dust filter or the like. The remaining fans 200 of the plurality of fans 200 suck in a part of the airflow provided by the wind blown out from the one or more fans 200 that suck in the external air as described above. The wind blown out from the plurality of fans 200 provides the airflow flowing in the internal space S of the housing 10. The airflow flowing in the internal space S cools down devices that generate heat during operation, such as the light source device 50, the light modulation device 60, the projection optical device 80, the plurality of circuit mounting boards 120, the power supply device not shown, the radiator, and the heat pump. The airflow heated by heat exchange with these devices is discharged to the outside of the projector 100 from the exhaust port formed at an appropriate position of the bottom wall portion 12.

[0072] like Figure 2 As shown, the cable storage space P of the housing 10 is surrounded by the bottom wall portion 12, the wall portion 14D and the connecting portion 15D of the side wall portion 14, the upper wall portion 16, and the wall portion 30. The space surrounded by the bottom wall portion 12, the side wall portion 14, and the upper wall portion 16 of the housing 10 has an internal space S and a cable storage space P. The small wall portions 31 and 35 of the wall portion 30 are partition walls that partition the internal space S and the cable storage space P in the XY plane. The wall surfaces 31s and 31t of the small wall portion 31 parallel to the YZ plane and the wall surface 35t on the -Y side and the wall surface 35s on the +Y side of the small wall portion 35 parallel to the XZ plane are partition surfaces that partition the internal space S and the cable storage space P in the XY plane.

[0073] Figure 4 1 is a side view of the projector 100 , showing a state where most of the side wall portion 14 excluding the end portion on the +Y side of the wall portion 14D and the connecting portion 15D are removed. Figure 5 1 is a perspective view of the projector 100, in which most of the side wall portion 14 except for the end portion on the +Y side of the wall portion 14D and the connecting portion 15D are curved. Figure 2 , Figure 4 as well as Figure 5 As shown, the wall portion 30 has the small wall portions 31, 32, 33, 35 described above.

[0074] On the X-axis, the wall surface 31t of the small wall portion 31 of the wall portion 30 is arranged between the inner wall surface 14dt of the wall portion 14D of the side wall portion 14 on the +X side parallel to the YZ plane and the inner wall surface 14bt of the wall portion 14B of the side wall portion 14 on the -X side parallel to the YZ plane. When viewed along the X-axis parallel to the X-axis and from the -X side toward the +X side, the distance between the wall surface 31t of the small wall portion 31 of the wall portion 30 and the inner wall surface 14bt of the wall portion 14B of the side wall portion 14 is a first distance D1. When viewed along the X-axis, the distance between the end of the wall surface 32t of the +Z side of the small wall portion 32 on the -X side parallel to the Y-axis and the inner wall surface 14bt of the wall portion 14B of the side wall portion 14 is a second distance D2. The first distance D1 is shorter than the second distance D2. The wall surface 32 t of the small wall portion 32 is arranged on the +X side of the inner wall surface 14 dt on the +X side parallel to the YZ plane of the wall portion 14D of the side wall portion 14 on the X axis and is located on the X axis back side relative to the inner wall surface 14 dt.

[0075] like Figure 5 As shown, when viewed from the -Y side toward the +Y side along the Y axis, an opening GA is formed in the housing 10. The opening GA is surrounded by the ends of the small wall portion 32 of the wall portion 30 on the -Y side and +Z side parallel to the X axis, the end of the wall portion 14A of the side wall portion 14 on the -X side parallel to the Z axis, the ends of the small wall portion 33 of the wall portion 30 on the -Y side and -Z side parallel to the X axis, and the end of the wall portion 14D of the side wall portion 14 on the -X side parallel to the Z axis. The opening GA is always open.

[0076] The small wall portion 32 extends from the end of the small wall portion 31 on the -Z side only in the area overlapping with the bottom wall portion 12 when viewed along the Z axis as described above, toward the wall portion 14D of the side wall portion 14 and the connecting portion 15D on the -X side. A step is provided at a predetermined position PS on the Y axis of the small wall portion 32. The wall surface 32t extending from the end of the small wall portion 32 on the -Y side parallel to the X axis along the Y axis to the predetermined position PS on the +Y side is defined as the wall surface 32tL, and the wall surface 32t extending from the predetermined position PS to the position where the small wall portion 32 intersects with the wall surface 35t on the -Y side parallel to the YZ plane of the small wall portion 35 is defined as the wall surface 32tH. The wall surface 32tH is located closer to the +Z side than the wall surface 32tL. The wall surface 32tC connecting the end of the wall surface 32tL on the -Y side parallel to the X axis and the end of the wall surface 32tH on the +Y side parallel to the X axis is parallel to the XZ plane.

[0077] The wall surface 32t of the small wall portion 32 is inclined relative to the XY plane, and moves toward the -Z side as it moves from the end on the +X side to the end on the -X side. The amount of movement on the Z axis when the wall surface 32tH moves from the end on the +X side to the end on the -X side is greater than the amount of movement on the Z axis when the wall surface 32tL moves from the end on the +X side to the end on the -X side. That is, the wall surface 32tH is inclined at a larger angle relative to the XY plane than the wall surface 32tL.

[0078] The height on the Z axis of the wall surface 31t on the -X side of the small wall portion 31 parallel to the YZ plane is a predetermined first height in the range from the end on the +Y side to the predetermined position on the -Y side on the Y axis, and is a second height higher than the first height in the range from the predetermined position to the position overlapping with the wall surface 32tC of the small wall portion 32 on the Y axis. Since the wall surface 32tL of the small wall portion 32 is lower than the wall surface 32tH, the height on the Z axis of the wall surface 31t of the small wall portion 31 is the highest third height in the range from the position overlapping with the wall surface 32tC of the step of the small wall portion 32 on the Y axis to the end on the -Y side. The width on the Y axis of the wall surface 31t of the small wall portion 31 is a predetermined first width in the range from the end on the +Z side to the predetermined position on the -Z side on the Z axis, and is a second width larger than the first width in the range from the predetermined position to the position overlapping with the wall surface 32tH of the small wall portion 32 on the Z axis. The width of the wall surface 31t of the small wall portion 31 on the Y axis is the smallest third width in the range from the position overlapping with the stepped wall surface 32tH of the small wall portion 32 on the Z axis to the end on the -Z side.

[0079] A plurality of insertion ports 400 are provided in the small wall portion 31. Terminals 410 of the connectors of the communication cables and wireless LAN handsets 451 are provided in each insertion port 400 and can be inserted and connected. For example, three insertion ports 400 are provided at intervals along the Y axis in the first region 405 of the small wall portion 31. The first region 405 is a portion on the -Y side of a region where the height of the wall surface 31t on the Z axis is the second height, and a region where the height of the wall surface 31t on the Z axis is the third height and the width of the wall surface 31t on the Y axis is the first width.

[0080] Terminals 411 to which HDMI (registered trademark) connectors can be connected are arranged at the three insertion ports 400 in the first area 405. Terminals 411 are electrically connected to the electronic circuits of the circuit mounting board 132 or the circuit mounting board 133. For example, an HDMI connector provided at one end of a communication cable (not shown) is connected to terminal 411, and a DVD player, Blu-ray Disc (registered trademark) player, game console, or other device (not shown) is connected to a connector provided at the other end of the communication cable. Thus, images from devices such as DVD players are output to the circuit mounting boards 132 and 133 via the communication cable, HDMI connector, and terminal 411, and are converted into appropriate electrical signals.

[0081] In the second region 406 of the small wall portion 31, for example, six insertion ports 400 are provided at intervals from each other along the Y axis. The second region 406 is a region where the height of the wall surface 31t in the Z axis is the first height and the second height and a portion on the +Y side of the region where the height of the wall surface 31t in the Z axis is the third height and a region where the height of the wall surface 31t in the Z axis is the first width and the second width.

[0082] In the six insertion ports 400 of the second area 406, terminals 421, 422, 423, 424, 425, and 426 are arranged from the +Y side to the -Y side. The terminal 421 is a terminal to which a USB (Universal Serial Bus) connector 461 of a wireless LAN slave 451 can be connected. Figure 5 The USB connector 461 is not visible. For example, the USB connector 461 of the wireless LAN slave 451 is connected to the terminal 421. Thus, images and pictures from a computer that a user can carry, such as a tablet terminal, are wirelessly transmitted to the wireless LAN slave 451, and the images and pictures received by the wireless LAN slave 451 are output to the circuit mounting boards 132 and 133 via the USB connector 461 and the terminal 421, and are converted into appropriate electrical signals.

[0083] The terminal 422 is a terminal to which a connector 462 called USB 2.0 Standard-B or Type-B of the USB cable 452 can be connected. For example, the connector 462 provided at one end of the USB cable 452 is connected to the terminal 422, and the connector provided at the other end of the USB cable 452 is connected to a device such as a scanner or a camera not shown. Thus, images and pictures from the device such as a scanner are output to the circuit mounting boards 132 and 133 via the USB cable 452, the connector 462 and the terminal 422, and are converted into appropriate electrical signals.

[0084] The terminal 423 is a terminal to which the LAN connector 463 of the LAN cable 453 can be connected. For example, the LAN connector 463 provided at one end of the LAN cable 453 is connected to the terminal 423, and a computer (not shown) is directly connected to the LAN connector provided at the other end of the LAN cable 453, or is connected via a switching hub, another LAN cable, etc. Thus, images and pictures from the computer are output to the circuit mounting boards 132 and 133 via the LAN cable 453, the LAN connector 463, and the terminal 423, and are converted into appropriate electrical signals.

[0085] Terminal 424 is a terminal to which USB connector 464 of flash memory 454 can be connected. For example, USB connector 464 of flash memory 454 is connected to terminal 424. Thus, the video or image stored in flash memory 454 is output to circuit mounting boards 132 and 133 via USB connector 464 and terminal 424 and converted into an appropriate electrical signal.

[0086] Terminal 425 is a terminal that can connect to a D-Sub 15-pin VGA (Video Graphics Array) connector 465 of a display cable 455. For example, a VGA connector 465 provided at one end of the display cable 455 is connected to terminal 425, and a computer (not shown) is directly connected to a VGA connector provided at the other end of the display cable 455 or connected via a switching hub, other LAN cables, etc. Thus, images and pictures from the computer are output to the circuit mounting boards 132 and 133 via the display cable 455, the VGA connector 465, and the terminal 425, and are converted into appropriate electrical signals.

[0087] The terminal 426 is a terminal to which the connector 466 of the modular cable 456 can be connected. For example, the connector 466 provided at one end of the modular cable 456 is connected to the terminal 426, and an image output device such as a computer or an electronic blackboard (not shown) is connected to the connector provided at the other end of the modular cable 456. Thus, the image from the image output device is output to the circuit mounting boards 132 and 133 via the modular cable 456, the connector 466, and the terminal 426, and is converted into an appropriate electrical signal.

[0088] For example, one insertion port 400 is provided in the third region 408 of the small wall portion 31. The third region 408 is a region where the height of the wall surface 31t on the Z axis is a third height and the width of the wall surface 31t on the Y axis is a third width.

[0089] A terminal 431 is arranged at one insertion port 400 of the third area 408. The terminal 431 is a terminal of a two-pin connector 468 that can be connected to the power cable 458. The connector 468 provided at one end of the power cable 458 is connected to the terminal 431, and a power supply device (not shown) is connected to the connector provided at the other end of the power cable 458 directly or via a setting table of the projector 100 or the like. Thus, the power from the power supply device is supplied to the circuit mounting board 131 and the power supply provided in the internal space S on the -Z side of the circuit mounting board 131 via the power cable 458, the connector 468, and the terminal 431. The circuit mounting board 131 and the power supply generate appropriate electrical signals from the received power, and supply the electrical signals to the devices driven in the internal space S.

[0090] like Figure 5As shown, for example, the long cable portion of the USB cable 452 connected to the terminal 422 protrudes from the USB connector 462 to the -X side in the cable storage space P, and moves to the -Z side due to gravity when viewed along the X-axis. Furthermore, the cable portion of the USB cable 452 extends along the Y-axis to the -Y side toward the opening GA between the end of the connecting portion 15D of the side wall portion 14 on the +X side parallel to the Z-axis and the end of the wall portion 14A on the -X side parallel to the Z-axis, and is guided to the outside of the projector 100 through the opening GA.

[0091] Similar to the USB cable 452, the long cable portions of the LAN cable 453, display cable 455, modular cable 456 and power cable 458 protrude from the LAN connector 463, VGA connector 465, connector 466 and connector 468 toward the -X side in the cable storage space P, move toward the -Z side when viewed along the X-axis, extend toward the opening GA along the Y-axis toward the -Y side, and are guided to the outside of the projector 100 through the opening GA.

[0092] The wireless LAN slave 451 is different from the communication cables connected to the plurality of terminals 140, and communicates wirelessly with an external device that inputs information related to images and pictures to the projector 100. Figure 4 as well as Figure 5 As shown, among the plurality of terminals 410, the terminal 421 connected to the USB connector 461 of the wireless LAN sub-machine 451 is arranged at the closest +Y side in the wall surface 31t of the small wall portion 31 when viewed along the X-axis. The plurality of terminals 410 other than the terminal 421 are arranged at a position closer to the -Y side than the terminal 421 on the wall surface 31t of the small wall portion 31. That is, on the Y-axis, between the terminal 421 and the wall surface 35t of the small wall portion 35, there is no terminal of other connectors capable of connecting the communication cable. The opening GA is formed at a position closer to the -Y side than the plurality of terminals 410. The cable portion of the communication cable including the USB cable 452 is guided to the -Y side on the opposite side of the side facing the terminal 421 on the Y-axis. Therefore, when viewed along the X-axis, the connectors and cable portions of other communication cables do not overlap with the wireless LAN sub-machine 451. Therefore, the influence of conductors such as metal contained in communication cables other than the wireless LAN slave 451, such as the USB cable 452, on communication between the circuits of the circuit mounting boards 132 and 133 of the wireless LAN slave 451 and external devices of the projector 100 is reduced.

[0093] As described above, the long cable portion of the communication cable including the USB cable 452 is bent in the three-dimensional space of the X-axis, Y-axis, and Z-axis in the cable storage space P, so the width of the cable storage space P on the X-axis and Y-axis and the height on the Z-axis are larger than the maximum bending radius of the bending radius allowed by the communication cable including the USB cable 452. Figure 2 As shown, when viewed along the X-axis, the distance between the end of the wall surface 31t on the -X side of the small wall portion 31 parallel to the Y-axis and the inner wall surface 14dt of the wall portion 14D of the side wall portion 14 is the third distance D3. As described above, the third distance D3 is larger than the bending radius allowed by the cable connected to the terminal 420 of the wall surface 31t, for example, set to 3 cm or more. In addition, the third distance D3 is preferably set to 5 cm or more.

[0094] In addition, the wireless LAN slave 451 resonates at a length of 1 / 4 of the wavelength of the electromagnetic wave used for communication between the wireless LAN slave 451 and a device such as a computer outside the projector 100. Therefore, a conductor within a range with a radius of 1 / 4 of the wavelength of the electromagnetic wave used for communication, centered on the wireless LAN slave 451, may affect the communication of the wireless LAN slave 451. For example, if the frequency of the electromagnetic wave used for communication with the wireless LAN slave 451 is 2.4 GHz, the wavelength of the electromagnetic wave is 12.5 cm, and a conductor arranged within a radius of 3 cm centered on the wireless LAN slave 451 may affect the communication of the wireless LAN slave 451. Therefore, if Figure 2 As shown, within a range RR having a radius of 1 / 4 of the wavelength of the electromagnetic wave used for communication and centered on the wireless LAN slave unit 451, it is preferred not to configure conductive objects such as metal supporting members and screws unless there is any problem.

[0095] Due to the constraints caused by the design of the projector 100, the separation distance between the center of the terminal 421 connected to the USB connector 461 of the wireless LAN slave 451 on the Y axis and the center of the other terminal 410 on the Y axis may have to be shorter than the length of 1 / 4 of the wavelength of the electromagnetic wave used for communication of the wireless LAN slave 451. However, when viewed along the X axis as described above, the connector and cable portion of the other communication cable do not overlap with the wireless LAN slave 451, and the cable portion of the other communication cable is guided in a direction away from the wireless LAN slave 451. Therefore, the influence of the conductor such as metal contained in the communication cable on the communication between the circuit of the circuit mounting board 132, 133 of the wireless LAN slave 451 and the external device of the projector 100 is reduced.

[0096] The projector 100 of the present embodiment described above includes circuit mounting boards 132, 133, a housing 10, and terminals 421, 422. The circuit mounting boards 132, 133 process images, process images and videos projected by the projector 100, and control electrical signals provided to the light source device 50 and the light modulator 60 that generate image light to be projected. The housing 10 includes an inner wall surface 14dt of a wall portion 14D of the side wall portion 14, an inner wall surface 14bt of a wall portion 14B of the side wall portion 14, and a wall surface 31t of a small wall portion 31 of the wall portion 30. The inner wall surface 14dt of the wall portion 14D of the side wall portion 14 corresponds to the "first side surface". The inner wall surface 14bt of the wall portion 14B of the side wall portion 14 is opposite to the inner wall surface 14dt of the wall portion 14D, and corresponds to the "second side surface". The X axis corresponds to the "first axis". The direction parallel to the X axis corresponds to the "second direction". The direction parallel to the Y axis corresponds to the “first direction.” The inner wall surface 14dt of the wall portion 14D of the side wall portion 14 has a longitudinal direction along the Y axis. The inner wall surface 14bt of the wall portion 14B of the side wall portion 14 faces the inner wall surface 14dt.

[0097] In the projector 100 of the present embodiment, the housing 10 includes a wall surface 31t of the small wall portion 31 of the wall portion 30, a wall surface 32t of the small wall portion 32 of the wall portion 30, and a wall surface 35t of the small wall portion 35 of the wall portion 30. The wall surface 31t of the small wall portion 31 of the wall portion 30 is arranged between the inner wall surfaces 14dt and 14bt on the X axis orthogonal to the Y axis, and corresponds to the "first surface". The wall surface 32t of the small wall portion 32 of the wall portion 30 intersects with the wall surface 31t of the small wall portion 31 on the X axis and the Z axis, and corresponds to the "second surface". The wall surface 35t of the small wall portion 35 of the wall portion 30 intersects with the wall surface 31t of the small wall portion 31 on the X axis and the Y axis, and intersects with the wall surface 32t of the small wall portion 32 on the Y axis and the Z axis. The wall surface 35t of the small wall portion 35 of the wall portion 30 corresponds to the "third surface". The terminal 422 is arranged on the wall surface 31t of the small wall portion 31 of the wall portion 30. The USB cable 452 is connected to the terminal 422. The terminal 422 is equivalent to the "first terminal". The USB cable 452 is equivalent to the "communication cable". The terminal 421 is arranged between the end on the +Y side of the Y axis in the wall surface 31t of the small wall portion 31 of the wall portion 30, that is, the wall surface 35t of the small wall portion 35 and the terminal 422. The wireless LAN sub-machine 451 is connected to the terminal 421. The wireless LAN sub-machine 451 is equivalent to the "sub-machine for wireless communication".

[0098] In the projector 100 of the present embodiment, when viewed along the X-axis, a first distance D1 between the wall surface 31t of the small wall portion 31 of the wall portion 30 and the inner wall surface 14bt of the wall portion 14B of the side wall portion 14 is shorter than a second distance D2 between the wall surface 32t of the small wall portion 32 of the wall portion 30 and the inner wall surface 14bt of the wall portion 14B of the side wall portion 14. In addition, when viewed along the X-axis, a third distance D3 between the wall surface 31t of the small wall portion 31 of the wall portion 30 and the inner wall surface 14dt of the wall portion 14D of the side wall portion 14 is shorter than the first distance D1. In the projector 100 of the present embodiment, in the housing 10, a portion of a range RT sandwiched between the first end 31e on the opposite side of the end 31f of the wall surface 31t of the small wall portion 31 intersecting the wall surface 35t of the small wall portion 35 of the wall portion 30 on the Y axis and one end 14e of the inner wall surface 14dt of the wall portion 14D of the side wall portion 14 on the Y axis close to the first end 31e on the Y axis is opened as an opening GA. That is, in the direction D5 along the outer peripheral edge 10T of the housing 10 including the inner wall surface 14dt of the wall portion 14D of the side wall portion 14 and the inner wall surface 14bt of the wall portion 14B, a portion of the range RT sandwiched between the first end 31e of the wall surface 31t and the end 14e of the inner wall surface 14dt is opened.

[0099] To explain in detail, in the projector 100, in the direction D5 along the outer peripheral edge 10T of the housing 10, the range sandwiched by the first end 31e of the wall surface 31t of the small wall portion 31 and the end of the inner wall surface of the connecting portion 15D on the +X side is opened as the opening GA. In addition, the connecting portion 15D may be omitted, and the entire range RT sandwiched by the first end 31e of the wall surface 31t and the end 14e of the inner wall surface 14bt may be opened as the opening GA.

[0100] In the projector 100 of the present embodiment, when viewed along the X-axis, on the wall surface 31t of the small wall portion 31 of the wall portion 30, the terminal 421 connected to the wireless LAN slave 451 is arranged at a position closer to the +Y side than the terminal 422 connected to the USB cable 452. On the other hand, in the side wall portion 14 including the wall portions 14B and 14D, the opening GA opened in a part of the range RT is provided at a position closer to the -Y side than the terminal 422. In the projector 100 of the present embodiment, by guiding the cable portion of the USB cable 452 to the outside of the projector 100 through the opening GA on the -Y side, the cable portion of the USB cable 452 can be kept away from the wireless LAN slave 451 arranged at the +Y side than the connector 462 of the USB cable 452. As a result, when viewed along the X-axis, the USB cable 452 does not overlap with the wireless LAN slave 451, and the influence of the metal and conductor in the USB cable 452 on the communication of the wireless LAN slave 451 is reduced. According to the projector 100 of this embodiment, when the wireless LAN slave 451 is connected, it is possible to avoid a situation where the throughput decreases and the image output from the projector is disturbed or stopped. Therefore, when the wireless LAN slave 451 is connected, it is possible to prevent the projector 100 from malfunctioning or performance degradation.

[0101] The USB cable 452 is illustrated as one of the communication cables connected to the plurality of terminals 410. In the projector 100, in addition to the USB cable 452, a communication cable such as a display cable 455 can be connected, but in the description of the effects, the communication cables such as the display cable 455 are treated similarly to the USB cable 452.

[0102] In the projector 100 of the present embodiment, no terminal other than the terminal 421 is arranged between the terminal 421 connected to the wireless LAN slave 451 and the wall surface 35t of the small wall portion 35 of the wall portion 30. According to the projector 100 of the present embodiment, it is possible to avoid the situation where the communication cable crosses from the +Y side to the -Y side relative to the terminal 421 and passes through the opening GA when viewed along the X axis. Therefore, when the wireless LAN is connected, it is possible to prevent the projector 100 from malfunctioning and performance degradation.

[0103] In the projector 100 of the present embodiment, the housing 10 further includes an upper wall portion 16, which covers the wall surface 35t of the small wall portion 35 of the wall portion 30. The upper wall portion 16 is equivalent to a "cover". In the projector 100 of the present embodiment, the connection portion between the terminal 421 and the wireless LAN sub-unit 451 and the connection portion between the terminal 422 and the USB cable 452 can be hidden from the user by the upper wall portion 16. According to the projector 100 of the present embodiment, the aesthetics when the projector 100 is used can be improved.

[0104] In the projector 100 of the present embodiment, the wall surface 32t of the small wall portion 32 of the wall portion 30 has: a wall surface 32tH, which intersects with the wall surface 35t of the small wall portion 35 of the wall portion 30; and a wall surface 32tL, which is arranged on the side opposite to the wall surface 35t, that is, the -Y side, relative to the wall surface 32rH on the Y axis. The wall surface 32tH is equivalent to the "fourth surface". The wall surface 32tL is equivalent to the "fifth surface". The Z axis is equivalent to the "second axis". When observed along the Z axis, the distance between the wall surface 32tL and the terminal 421 is larger than the distance between the wall surface 32tH and the terminal 421. The wall surface 32tL is arranged at a position closer to the -Z side than the wall surface 32tH. The terminal 422 is arranged between the wall surface 35t and the boundary between the wall surfaces 32tH and 32tL on the Y axis.

[0105] In the projector 100 of the present embodiment, since the wall surface 32tL closer to the opening GA is lower than the wall surface 32tH, the USB cable 452 connected to the terminal 422 falls toward the -Z side due to gravity and is guided toward the opening GA. Therefore, it is difficult to apply a load to the USB cable 452. According to the projector 100 of the present embodiment, the load on the USB cable 452 can be reduced, and deformation of the USB cable 452 can be prevented.

[0106] In the projector 100 of the present embodiment, a terminal 431 connected to a power cable 458 is arranged on the wall surface 31t overlapping the wall surface 32tL on the Y axis. The power cable 458 is one type of communication cable. The terminal 431 corresponds to a "third terminal".

[0107] In the projector 100 of the present embodiment, the terminal 431 can be arranged away from the terminal 421 to the -Y side as far as possible, and the power cable 458 connected to the terminal 431 can be arranged away from the wireless LAN slave 451 connected to the terminal 421. The power cable 458 has a greater influence on the communication of the wireless LAN slave 451 than other communication cables. According to the projector 100 of the present embodiment, the influence of the metal and conductor of the power cable 458 on the communication of the wireless LAN slave 451 can be reduced. In addition, in the projector 100 of the present embodiment, it is necessary to use the fan 200 or the like to centrally cool the circuit mounting board 131 and the power supply device (not shown) arranged at the lower layer of the circuit mounting board 131, that is, at the -Z side. According to the projector 100 of the present embodiment, the terminal 431 is preferably arranged in the area on the -Z side of the wall surface 31t in accordance with the structure of the portion arranged at the lower part of the internal space S of the housing 10, that is, at the -Z side, such as the circuit mounting board 131 and the power supply device.

[0108] As mentioned above, although the preferred embodiment of the present invention has been described in detail, the present invention is not limited to the specific embodiment described above, and various modifications and changes can be made within the scope of the gist of the present invention described in the claims.

[0109] For example, in the projector 100, the types and number of terminals other than the terminal 421 disposed on the small wall portion 31 of the wall portion 30 of the housing 10 and the communication cables connected to the terminals other than the terminal 421 are not limited to the types and numbers described above. The types and number of terminals other than the terminal 421 disposed on the small wall portion 31 and the communication cables connected to the terminals are appropriately determined according to the environment when the projector 100 is used, the purpose of use, and the constraints during design.

[0110] The projector 100 described above includes three light modulators each formed of a liquid crystal panel. Although not shown, the image processing device to which the present invention is applied may be, for example, a so-called single-panel projector including one liquid crystal panel.

[0111] In the above-mentioned embodiments, the projector 100 is exemplified as an image processing device to which the present invention is applied. However, the image processing device of the present invention is not limited to a projector, and may be a device that transmits and receives information related to images and videos to and from an external device and processes images based on the received information, such as a printer, a video cassette recorder, or a video recorder that can be connected to a wireless LAN.

[0112] In addition, the light modulation elements 62B, 62G, and 62R are not limited to liquid crystal panels, and may be, for example, DMDs (Digital Micromirror Devices) or the like.

[0113] [Summary of the present disclosure]

[0114] The following is a summary of the present disclosure.

[0115] (Supplementary Note 1) An image processing device, comprising: a circuit that processes an image or video; a housing that houses the circuit, comprising: a first side surface whose first direction is the long side direction; a second side surface opposite to the first side surface; a first surface that is arranged between the first side surface and the second side surface in a second direction that is orthogonal to the first direction; a second surface that intersects the first surface; and a third surface that intersects the first surface and the second surface and connects the first surface and the second surface; a first terminal that is arranged on the first surface and is connected to a communication cable; and a second terminal that is arranged on the first surface between the third surface and the first terminal A sub-unit for wireless communication is connected between the sub-units, when observed along the first axis parallel to the second direction, the first distance between the first surface and the second side surface is shorter than the second distance between the second surface and the second side surface, when observed along the first axis, the third distance between the first surface and the first side surface is shorter than the first distance, in the shell, a part or all of the range sandwiched by the first end of the first surface and the end of the first side surface close to the first end in the first direction is open, and the first end of the first surface is the end on the opposite side of the end of the first surface intersecting with the third surface in the first direction.

[0116] According to the structure of Supplementary Note 1, the communication cable does not overlap with the wireless LAN slave, and the influence of the metal and conductor in the communication cable on the communication of the wireless LAN slave is reduced. According to the structure of Supplementary Note 1, when the wireless LAN slave is connected, it is possible to avoid the situation where the image projected from the projector is disordered or the image stops due to the decrease in throughput. Therefore, when the wireless LAN is connected, it is possible to prevent the image processing device from malfunctioning and performance degradation.

[0117] (Supplementary Note 2) The image processing device according to Supplementary Note 1, wherein no other terminal is arranged between the second terminal and the third surface.

[0118] According to the configuration of Supplementary Note 2, the communication cable does not overlap the wireless LAN from between the second terminal and the third surface, so that when the wireless LAN is connected, it is possible to prevent malfunction or performance degradation of the image processing device.

[0119] (Supplementary Note 3) The image processing device according to Supplementary Note 1 or 2, wherein the housing further includes a cover that covers at least a portion of the first surface.

[0120] According to the structure of Supplementary Note 3, since the connection portion between the terminal and the wireless LAN slave unit or the communication cable is hidden from the user by the cover, the appearance of the image processing apparatus can be improved.

[0121] (Note 4) An image processing device according to any one of Notes 1 to 3, characterized in that the second surface has: a fourth surface, which intersects with the third surface; and a fifth surface, which is arranged on the side opposite to the third surface relative to the fourth surface in the first direction, when observed along a second axis parallel to the third direction, the distance between the fifth surface and the second terminal is larger than the distance between the fourth surface and the second terminal, the third direction is orthogonal to the first direction and the second direction, and the first terminal is arranged between the third surface and a boundary in the first direction, and the boundary is the boundary between the fourth surface and the fifth surface.

[0122] According to the structure of Supplementary Note 4, the communication cable connected to the first terminal is guided toward the opening provided in the housing without applying a load. Therefore, the load on the communication cable can be reduced, and deformation of the communication cable can be prevented.

[0123] (Supplementary Note 5) The image processing device according to Supplementary Note 4 is characterized in that a third terminal for connecting a power cable is arranged on the first surface overlapping the fifth surface in the first direction.

[0124] According to the structure of Supplementary Note 5, the heat generated in the main body is received by the heat dissipation plate, and the heat is dissipated from the heat dissipation plate to the inner space of the housing, thereby being able to exchange heat with the airflow. Thus, the cooling efficiency of the circuit components can be further improved.

Claims

1. An image processing device, characterized in that: The image processing device comprises: Circuitry for processing images or videos; A housing for accommodating the circuit, comprising: a first side surface whose first direction is the long side direction; a second side surface opposite to the first side surface; a first surface arranged between the first side surface and the second side surface in a second direction orthogonal to the first direction; a second surface intersecting the first surface; and a third surface intersecting the first surface and the second surface and connecting the first surface and the second surface; A first terminal, which is disposed on the first surface and connected to a communication cable; as well as a second terminal, which is disposed on the first surface between the third surface and the first terminal and is connected to a wireless communication slave; When viewed along a first axis parallel to the second direction, a first distance between the first surface and the second side surface is shorter than a second distance between the second surface and the second side surface. When viewed along the first axis, a third distance between the first surface and the first side surface is shorter than the first distance, In the shell, part or all of the range sandwiched between the first end of the first surface and the end of the first side surface close to the first end in the first direction is open, and the first end of the first surface is the end on the opposite side of the end of the first surface intersecting with the third surface in the first direction.

2. The image processing device according to claim 1, characterized in that No other terminal is arranged between the second terminal and the third surface.

3. The image processing device according to claim 1 or 2, characterized in that: The housing further includes a cover covering at least a portion of the first surface.

4. The image processing device according to claim 1 or 2, characterized in that: The second surface has: a fourth surface intersecting the third surface; and a fifth surface disposed on a side opposite to the third surface relative to the fourth surface in the first direction, When viewed along a second axis parallel to the third direction, the distance between the fifth surface and the second terminal is greater than the distance between the fourth surface and the second terminal, and the third direction is orthogonal to the first direction and the second direction. The first terminal is arranged in the first direction between the third surface and a boundary between the fourth surface and the fifth surface.

5. The image processing device according to claim 4, characterized in that: A third terminal to which a power cable is connected is arranged on the first surface overlapping the fifth surface in the first direction.

6. The image processing device according to claim 1 or 2, characterized in that: The communication cable comprises a conductor, The communication cable is not arranged within a range having a radius of 1 / 4 of the wavelength of an electromagnetic wave used for communicating with the wireless communication slave unit, with the wireless communication slave unit as the center.

7. The image processing device according to claim 6, characterized in that: The wireless communication sub-unit uses electromagnetic waves with a frequency of 2.4 GHz and a wavelength of 12.5 cm in communication. The third distance is greater than 3 cm.

8. The image processing device according to claim 7, characterized in that: The third distance is greater than 5 cm.

9. The image processing device according to claim 1 or 2, characterized in that: The housing also accommodates: a light source device that emits light; a light modulation device connected to the circuit, modulating the light according to an image or a video to emit image light; and A projection optical device projects the image light.

10. A projector, characterized in that: The projector comprises: a light source device that emits light; a light modulating device for emitting image light obtained by modulating the light according to an image or a video; a projection optical device that projects the image light from the light modulation device; A circuit connected to the light modulation device to process the image or video; A housing that accommodates the light source device, the light modulation device, the projection optical device, and the circuit; a first terminal connected to a communication cable to provide an electrical signal to the circuit; and The second terminal is connected to a wireless communication slave and provides an electrical signal to the circuit. The housing comprises: The first direction is the first side surface in the long side direction; a second side surface opposite to the first side surface; a first surface arranged between the first side surface and the second side surface in a second direction orthogonal to the first direction; a second surface intersecting the first surface; and a third surface intersecting the first surface and the second surface and connecting the first surface and the second surface, When viewed along a first axis parallel to the second direction, a first distance between the first surface and the second side surface is shorter than a second distance between the second surface and the second side surface. When viewed along the first axis, a third distance between the first surface and the first side surface is shorter than the first distance, In the shell, a portion or all of a range sandwiched between the first end of the first surface and an end of the first side surface close to the first end in the first direction is open, and the first end of the first surface is an end on the opposite side of an end of the first surface intersecting with the third surface in the first direction, The wireless communication sub-unit uses electromagnetic waves with a frequency of 2.4 GHz and a wavelength of 12.5 cm in communication. The communication cable comprises a conductor, The third distance is greater than 3 cm.

11. A projector, characterized in that: The projector comprises: a light source device that emits light; a light modulating device for emitting image light obtained by modulating the light according to an image or a video; a projection optical device that projects the image light from the light modulation device; A circuit connected to the light modulation device to process the image or video; A housing that accommodates the light source device, the light modulation device, the projection optical device, and the circuit; a first terminal connected to a communication cable to provide an electrical signal to the circuit; and The second terminal is connected to a wireless communication slave and provides an electrical signal to the circuit. The housing comprises: The first direction is the first side surface in the long side direction; a second side surface opposite to the first side surface; a first surface arranged between the first side surface and the second side surface in a second direction orthogonal to the first direction; a second surface intersecting the first surface; and a third surface intersecting the first surface and the second surface and connecting the first surface and the second surface, When viewed along a first axis parallel to the second direction, a first distance between the first surface and the second side surface is shorter than a second distance between the second surface and the second side surface. When viewed along the first axis, a third distance between the first surface and the first side surface is shorter than the first distance, In the shell, a portion or all of a range sandwiched between the first end of the first surface and an end of the first side surface close to the first end in the first direction is open, and the first end of the first surface is an end on the opposite side of an end of the first surface intersecting with the third surface in the first direction, The communication cable comprises a conductor, The communication cable is not arranged within a range having a radius of 1 / 4 of the wavelength of an electromagnetic wave used for communicating with the wireless communication slave unit, with the wireless communication slave unit as the center.

Images