WO2015019915A1 - Projection direction switching device and image projection apparatus - Google Patents

Projection direction switching device and image projection apparatus Download PDF

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Publication number
WO2015019915A1
WO2015019915A1 PCT/JP2014/070054 JP2014070054W WO2015019915A1 WO 2015019915 A1 WO2015019915 A1 WO 2015019915A1 JP 2014070054 W JP2014070054 W JP 2014070054W WO 2015019915 A1 WO2015019915 A1 WO 2015019915A1
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Prior art keywords
projection
mirror
image
direction switching
axis
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PCT/JP2014/070054
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French (fr)
Japanese (ja)
Inventor
裕之 本地川
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日興商事株式会社
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Publication of WO2015019915A1 publication Critical patent/WO2015019915A1/en

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/28—Reflectors in projection beam
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof

Definitions

  • the present invention relates to a projection direction switching device capable of switching the direction of projection light emitted by a projection device, and an image projection apparatus including the projection direction switching device.
  • a video projector disclosed in the following Patent Document 1 is provided as one that can meet such a requirement.
  • This video projector is intended to be used as a home planetarium projector, and is provided with a converter lens that can be replaced with a projection lens and can project a flat chart image over a wide range.
  • this video projector by replacing the projection lens with a converter lens, it is possible to project a flat chart image widely on, for example, an indoor ceiling and a wall surface.
  • the projector Assuming that the projector is to be used in an attraction facility, it is possible to use it in a static facility such as a planetarium at best. There is a problem of staying in. In other words, if the image projected by the projector can be projected in various directions, not only on the ceiling, but in various directions, it is thought that the entertainment of the attraction facility can be improved dramatically. Such demands cannot be achieved in technology.
  • an object of the present invention is to provide a projection direction switching device capable of easily switching the direction of the projection light emitted by the projection device to various directions, and an image projection device including the projection direction switching device.
  • the present invention provided to solve the above-described problem is a projection direction switching device capable of switching the direction of projection light emitted by a projection device capable of generating projection light in a predetermined axial direction through a projection lens. And a mirror that reflects the projection light incident from the projection device, and a posture adjustment device that can adjust the inclination of the mirror with respect to the axis at an arbitrary position around the axis. It is.
  • the projection direction switching device of the present invention can switch the traveling direction of the projection light emitted by the projection device by reflection by a mirror.
  • the posture of the mirror can be changed by operating the posture adjustment device.
  • the tilt of the mirror with respect to the axis can be changed at any position in the circumferential direction with respect to the axis that is the direction in which the projection light is generated in the projection device by the operation of the attitude adjustment device. Therefore, according to the projection direction switching device of the present invention, it is possible to change the direction of the projection light emitted by the projection device only by operating the attitude adjustment device and adjusting at which position in the circumferential direction the mirror is inclined. Switching to various directions is possible.
  • the attitude adjustment device includes a rotation actuator that rotates the mirror around the axis, and a tilt actuator that changes the tilt of the mirror with respect to the axis. preferable.
  • the image projection device of the present invention provided to solve the above-described problems includes a projection device capable of generating projection light in a predetermined axial direction through a projection lens, and a direction of the projection light emitted by the projection device.
  • a projection direction switching device that can be switched, wherein the projection direction switching device reflects a projection light incident from the projection device, and tilts the mirror with respect to the axis at an arbitrary position around the axis.
  • an adjustable posture adjusting device is an adjustable posture adjusting device.
  • the image projection device of the present invention includes a projection direction switching device capable of switching the direction of the projection light emitted by the projection device.
  • the projection direction switching device includes a posture adjusting device in addition to a mirror for switching the traveling direction of the projection light emitted by the projection device, and intersects the generation direction (axial direction) of the projection light.
  • the posture of the mirror can be changed in the direction and the direction around the axis. Therefore, according to the image projection apparatus of the present invention, the projection direction of the image by the projection device can be changed in any direction.
  • the attitude adjustment device includes a rotation actuator that rotates the mirror around the axis, and a tilt actuator that changes the tilt of the mirror with respect to the axis.
  • the image projection apparatus of the present invention described above includes a control device capable of controlling the operation of the projection device and the projection direction switching device, and the control device is based on the attitude of the mirror adjusted by the projection direction switching device.
  • the image adjustment signal for adjusting the image output by the projection device can be output.
  • the image projection device of the present invention when the projection direction is changed by changing the mirror posture, it is assumed that the projected image is distorted or inverted depending on the mirror posture.
  • the image output from the projection device can be adjusted by the control device in accordance with the attitude of the mirror. Therefore, according to the image projection device of the present invention, it is possible to optimize an image projected on a projection surface such as a wall surface.
  • the image projection apparatus of the present invention described above includes a control device capable of controlling the operation of the projection device, and the control device is output by the projection device based on the positional relationship between the projection object and the projection device. It is also possible to output an image adjustment signal for adjusting the image.
  • the output image by the projection device can be controlled by the control device in accordance with the positional relationship with the projection object. Therefore, according to the image projection device of the present invention, it is possible to project an image in an optimum state in consideration of the positional relationship with the projection object.
  • the operation for switching the projection direction may be complicated or troublesome for the sick person or the like.
  • an image projection device is introduced into an attraction facility or the like, further improvement of the effect of the production is expected by switching the projection direction according to the behavior of the user. Therefore, it is assumed that the convenience and the production effect can be increased by detecting the behavior of the human body such as turning the sick person or the like and the movement of the user and switching the projection direction in conjunction with this.
  • the image projection device of the present invention provided based on such knowledge has a behavior detection device capable of detecting the behavior of a human body, and the control device uses the projection direction switching device based on detection information by the behavior detection device.
  • An attitude adjustment output signal for adjusting the attitude of the mirror can be output.
  • the image projection device of the present invention provided on the basis of such knowledge has a behavior detection device capable of detecting the behavior of the human body, on the condition that the proximity of the human body to the projection lens is detected by the behavior detection device. The progress of the projection light emitted by the projection device is blocked by the mirror.
  • the progress of the projection light emitted by the projection device is blocked by the mirror on condition that the behavior detection device detects that the human body is close to the projection lens.
  • the control device can grasp in advance the change information of the image projected by the projection device, and based on the change information, the projection direction switching device It is possible to output an attitude adjustment signal for adjusting the attitude of the mirror.
  • the present invention it is possible to provide a projection direction switching device that can easily switch the direction of the projection light emitted by the projection device to various directions, and an image projection device including the projection direction switching device.
  • FIG. 1 It is a perspective view showing a schematic structure of an image projection device provided with a projection direction switching device according to an embodiment of the present invention. It is the perspective view which showed the example of installation of the image projection apparatus shown in FIG. (A) is the perspective view which showed the projection direction switching apparatus based on one Embodiment of this invention, (b) is XX sectional drawing of (a). It is the block diagram which showed the structure of the control apparatus with which the image projection apparatus shown in FIG. 1 is provided. (A) is a perspective view which shows schematic structure of the image projection apparatus provided with the projection direction switching apparatus which concerns on other embodiment of this invention, (b) is a perspective view for demonstrating an example of operation
  • the image projection device 10 includes a projection device 20, a projection direction switching device 50, and a control device 70.
  • the projection device 20 is a so-called projector, and forms a projection image based on an input signal input from a personal computer or an input device 30 such as a dedicated reproduction device for images and moving images, and enables projection of the projection image. .
  • the input device 30 may be integrated with the projection device 20 or may be provided separately from the projection device 20.
  • the projection device 20 has an optical path component (not shown) including a light source built in the housing 22.
  • the projection device 20 includes a projection lens 24 at a position which is the outer surface of the housing 22 (the top surface in the present embodiment) and forms the end of an optical path formed inside.
  • a pedestal 22 a is provided at the base of the projection lens 24 and protrudes slightly upward from the top surface of the housing 22. Thereby, it can prevent that the optical path of the projection light reflected in the projection direction switching apparatus 50 explained in full detail behind is interrupted. Further, by projecting the housing 22 only at a portion corresponding to the projection lens 24, the housing 22 can be made to have a minimum size.
  • the appearance of the base 22a may be any shape as long as the optical path of the projection light is not blocked.
  • the projection device 20 can generate projection light linearly through the projection lens 24 in a predetermined axial direction.
  • the projection device 20 can also be installed so as to be able to generate projection light from the projection lens 24 in the lateral direction (horizontal direction or a direction having an inclination in the vertical direction with respect to the horizontal direction).
  • the image projection device 10 can generate a posture in which the projection lens 24 faces upward, that is, the projection light is directed toward the ceiling at a position adjacent to the bed head board 14 of the bed 12. Is installed. Further, when the traveling direction of the projection light is switched to the feet of the user sleeping on the bed 12 by the projection direction switching device 50 described in detail later, the light path is installed so as not to be blocked by the bed head board 14 or the like.
  • the projection device 20 switches the projection direction by, for example, a method of installing on a pedestal 16 arranged on the floor as shown in FIG. 2 or a method of hanging on the bed head board 14 or a wall surface.
  • the apparatus 50 is installed so as to protrude upward from the upper end of the bed head board 14.
  • the projection direction switching device 50 includes a main body case 52 in which a mirror 54 and an attitude adjustment device 56 are built.
  • the main body case 52 is a case having a dome-like appearance formed of a light-transmitting material such as resin or glass.
  • the main body case 52 is installed so as to cover the projection lens 24.
  • the mirror 54 is for reflecting the projection light incident from the projection device 20.
  • the attitude adjustment device 56 is for adjusting the attitude of the mirror 54.
  • the attitude of the mirror 54 can be freely changed inside the main body case 52. That is, by operating the attitude adjustment device 56, the mirror 54 can be rotated around the axis L of the projection light generated in the projection lens 24 (in the direction of arrow A in FIG. 3), and the arrow B in FIG. As shown, the inclination of the mirror 54 relative to the axis L can be changed as appropriate.
  • the posture adjusting device 56 may have any configuration as long as it can change the posture of the mirror 54.
  • the posture adjusting device 56 may be as follows.
  • the attitude adjustment device 56 includes a mirror base 60, a rotation actuator 65, and a tilt actuator 67.
  • the mirror base 60 includes a donut-shaped base 62 and a mirror support mechanism 64.
  • An opening area 66 is provided in the center of the pedestal 62, and the projection light generated from the projection lens 24 is passed through the opening area 66 in the main body case 52 when the projection direction switching device 50 is attached to the projection apparatus 20. It is possible to introduce to. Further, the pedestal portion 62 can be rotated around the axis L by operating the rotary actuator 65. That is, the mirror 54 to be tilted can be positioned around the axis L.
  • the mirror support mechanism 64 is configured by a conventionally known hinge mechanism or the like, and supports the mirror 54 so that the inclination can be changed.
  • the mirror support mechanism 64 can change the tilt of the mirror 54 by receiving power from the tilt actuator 67.
  • a state of crossing a position downstream of the opening region 66 provided in the center of the pedestal 62 in the traveling direction of the projection light (a position above the opening region 66 in the present embodiment). It can be. That is, by tilting the mirror 54, the mirror 54 can be made to intersect the axis L.
  • the projection light introduced into the main body case 52 from the opening region 66 provided in the center of the pedestal portion 62 is reflected in the mirror 54 as indicated by an arrow ⁇ 1 in FIG. It can be reflected and the traveling direction of the projection light can be bent. Since the main body case 52 has translucency over the entire circumference, the projection light (reflected light) reflected by the mirror 54 is emitted to the outside through the main body case 52.
  • the mirror 54 when the mirror 54 is erected, the mirror 54 is substantially in the direction of the axis L at a position outside the opening region 66 provided at the center of the pedestal 62. It becomes a parallel state. Therefore, when the mirror 54 is erected, the projection light introduced into the main body case 52 from the opening region 66 of the pedestal 62 is reflected by the mirror 54 as indicated by an arrow ⁇ 2 in FIG. It progresses straight along the axis L.
  • the projection area 20 is closed by tilting the mirror 54 so as to be substantially orthogonal to the axis L, and the projection light emitted by the projection device 20 is emitted. Will be blocked by the mirror 54. That is, by tilting the mirror 54, the same effect as that obtained by covering the projection lens 24 with the lid can be obtained.
  • the control device 70 outputs a command signal to the internal mechanism 21 of the projection device 20 and the projection direction switching device 50, and controls these operations.
  • the control device 70 is configured by a control device such as a conventionally known personal computer.
  • the control device 70 may be provided separately outside, but is incorporated in the projection device 20 in the present embodiment.
  • the control device 70 includes a control processing unit 72, an input unit 74, and an output unit 76.
  • the control device 70 can perform arithmetic processing in the control processing unit 72 and output various control signals from the output unit 76 based on information (input information) that serves as a reference for attitude adjustment of the mirror 54 input in the input unit 74. It is said that.
  • the input unit 74 of the control device 70 includes an operation device 77 such as a remote controller for operating the image projection device 10, and various sensors and devices as input devices 75 by wire or wirelessly. Can be connected.
  • an operation device 77 such as a remote controller for operating the image projection device 10
  • various sensors and devices as input devices 75 by wire or wirelessly. Can be connected.
  • sensors and devices connectable to the input unit 74 for example, a behavior detection device 78 for detecting the behavior of a human body, a motion detection sensor, a sensor 80 such as an infrared sensor can be employed.
  • the control processing unit 72 projects an image and an appropriate mirror 54 for projecting the image in the direction.
  • the posture is derived.
  • an operation signal (posture adjustment signal) necessary to obtain the derived posture of the mirror 54 is generated and output from the output unit 76 toward the posture adjustment device 56.
  • the rotary actuator 65 and the tilt actuator 67 are operated, and the posture of the mirror 54 is adjusted.
  • a behavior detection device 78 and various sensors 80 for detecting the behavior of the human body are connected to the input unit 74, based on the behavior detected by the behavior detection device 78 and the detection results by the sensor 80.
  • the posture adjustment signal is generated and output, and the posture of the mirror 54 is adjusted.
  • the behavior detection device 78 is connected to the input unit 74
  • an image is projected on the ceiling.
  • an attitude adjustment signal for adjusting the orientation of the mirror 54 is output.
  • an image can be projected on the wall surface in the direction in which the user's body is facing.
  • An attitude adjustment signal for adjusting the orientation of the mirror 54 is output.
  • control processing unit 72 can output an image adjustment signal for adjusting the image output by the projection device 20 based on the attitude of the mirror adjusted by the projection direction switching device 50.
  • the image adjustment output signal is input to one or both of the projection device 20 and the input device 30. Thereby, the output adjustment of the projection device 20 and the input device 30 is performed so that the image finally projected on the projection target such as the screen, the wall surface, and the ceiling surface does not have a sense of incongruity such as distortion or inversion. Made.
  • the image projection device 10 of the present embodiment includes the projection direction switching device 50, and can switch the traveling direction of the projection light emitted by the projection device 20 by reflection by the mirror 54.
  • the projection direction switching device 50 changes the posture of the mirror 54 by operating the posture adjustment device 56, and easily and freely switches the traveling direction of the projection light to be an arbitrary direction. be able to. Therefore, the image projection device 10 can enjoy an image in an arbitrary posture even for a person who does not have freedom of body such as a sick person or an injured person.
  • the example shown in the present embodiment is one in which the image projection device 10 is installed at a position adjacent to the bed head board 14 of the bed 12 and can be suitably used in a hospital or the like. Specifically, it can be suitably used in medical facilities such as hospitalized facilities, artificial dialysis facilities, luxury-oriented obstetrics and gynecology clinics, health examination facilities, and nursing care facilities. Further, the image projection device 10 can be suitably used in places other than medical sites and nursing homes. Specifically, it can also be used for the purpose of producing an attraction using an image in an attraction facility such as a theme park, or for enjoying an image in a hotel, a general house, a passenger ship cabin or the like.
  • the projection direction switching device 50 described above includes a posture adjustment device 56 for switching the direction of the mirror 54, and a direction in which the posture of the mirror 54 intersects the generation direction of the projection light (axis L direction) and the axis line. It can be changed around L. Therefore, according to the projection direction switching device 50, it is possible to change the projection direction of the image by the projection device in any direction. Therefore, according to the projection direction switching device 50, not only a static usage method of continuously projecting an image onto a single projection object, but also a dynamic method of projecting an image while sequentially switching the projection object. Can be used in various forms, and as described above, the effect of attraction facilities and the like can be further improved.
  • the image projection device 10 can output an image adjustment signal for adjusting the image output from the projection device 20 by the control device 70 based on the attitude of the mirror 54 adjusted by the projection direction switching device 50. It is said that. As a result, it is possible to optimize the image projected on the projection surface such as the wall surface so as not to cause problems such as distortion and inversion.
  • the quality of the image projected on the projection object is the positional relationship between the projection object and the projection device 20, such as the distance between the image projection apparatus 10 and the projection object, the angle of the projection object with respect to the image projection apparatus 10, and the like.
  • the image projection apparatus 10 further includes a positional relationship grasping unit for deriving or setting the positional relationship between the projection object and the projection device 20, and according to the positional relationship grasped by the positional relationship grasping unit, the projection is performed.
  • An image adjustment signal for adjusting the image output by the device 20 may be output from the control device 70. Accordingly, it is possible to project an image in an optimal state in consideration of the positional relationship with the projection target.
  • the image projection device 10 described above has a behavior detection device 78 and can output an attitude adjustment output signal from the control device 70 based on detection information by the behavior detection device 78.
  • the posture of the mirror 54 can be adjusted in conjunction with the behavior of the human body detected by the behavior detection device 78, and the projection direction can be switched.
  • the behavior detection device 78 may be any device that can detect the behavior of the human body. However, if the behavior detection device 78 is assumed to be used by a sick or injured person who cannot move or is difficult to move. It is preferable that the head position, particularly the movement in the line of sight, can be detected as the behavior of the human body. In this way, the image projection device 10 can be used as a so-called barrier-free device that is easy to use for people with disabilities in the social life such as disabled people, elderly people, sick people, and elderly people.
  • the projection direction switching device 50 causes the projection of the projection light emitted by the projection device 20 by the mirror 54 by setting the mirror 54 in a state of being tilted so as to be substantially orthogonal to the axis L. It can be set as the interruption
  • the control device 70 is made to grasp in advance the change information of the image projected by the projection device 20, and the posture adjustment signal for causing the projection direction switching device 50 to adjust the posture of the mirror 54 based on the change information is output. It can be possible. By doing in this way, since a projection direction switches in response to the change of the image projected by the projection apparatus 20, it becomes possible to aim at the improvement of the effect in attraction etc.
  • the projection direction switching device 50 used in the image projection device 10 described above can adjust the inclination while rotating the mirror 54 in the circumferential direction, but the present invention is not limited to this. What is necessary is just to be able to adjust the inclination of the mirror 54 at an arbitrary position around the axis L. Specifically, for example, a projection direction switching device 150 as described below may be used.
  • the projection direction switching device 150 can operate independently for each of the plurality of (four in the illustrated example) flaps 152a to 152d provided so as to surround the projection lens 24. And an actuator (not shown). Mirrors 154a to 154d are provided on the inner surfaces of the flaps 152a to 152d, respectively. Further, the flaps 152a to 152d are pivotally supported by hinges or the like at the base end portions, respectively, and the angles of the flaps 152a to 152d can be independently adjusted by operating the actuators.
  • the projection direction switching device 150 described above can independently adjust the inclinations of the mirrors 154a to 154d by operating an arbitrary actuator. For this reason, among the mirrors 154a to 154d, the projection direction switching device 150 selects what is necessary to reflect the projection light in the direction in which the image is to be projected, and adjusts the inclination of the selected one to thereby change the projection direction. As in the case of using the switching device 50, an image can be projected in an arbitrary direction. Specifically, for example, as shown in FIG. 5B, the flap 152b is inclined and the other flaps 152a, 152c, and 152d are brought into a tilted state, so that projection is performed by a mirror 154b attached to the flap 152b. Light can be reflected and the projection direction can be adjusted.
  • the flaps 152a to 152d used in the projection direction switching device 150 may be a plurality of flaps, and may be increased or decreased as necessary. Specifically, as shown in FIG. 2, when the image projection device 10 is installed at a position adjacent to the bed headboard 14, the image is projected on the left and right wall surfaces or the wall surface of the user's feet lying on the bed 12. It only needs to be possible, and it is not necessary to project it onto the wall on the head side. Therefore, in this case, among the above-described flaps 152a to 152d, those for reflecting the projection light toward the wall surface on the head side of the user when arranged at a position adjacent to the bed head board 14 are omitted. It is good also as a structure.
  • this invention is not limited to this, It can implement by adding a various change further in the range which does not deviate from the main point of this invention.
  • the projection direction switching device of the present invention can be used in general applications for switching the projection direction by combination with the projection device.
  • the image projection device of the present invention can be used in various facilities and applications such as medical institutions, ordinary houses, and attraction facilities.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

　The purpose of the present invention is to provide a projection direction switching device allowing easy switching between various directions of a projection light emitted from a projection device, and an image projection apparatus equipped with said a projection direction switch.　The image projection apparatus (10) has a projection device (20) capable of emitting a projection light in the direction of a predetermined axis line (L) through a projection lens (24), and a projection direction switching device (50) capable of switching the direction of the projection light emitted from the projection device (20). The projection direction switching device (50) is provided with: a mirror (54) reflecting the incident projection light from the projection device (20); and a position adjusting device (56) capable of rotating the mirror (54) around the axis line (L) and of tilting the mirror (54) in a direction that crosses the axis line (L).

Description

投射方向切替装置、及び画像映写機器Projection direction switching device and image projection device
　本発明は、投射装置によって発せられた投射光の方向を切り替え可能な投射方向切替装置、及び当該投射方向切替装置を備えた画像映写機器に関する。 The present invention relates to a projection direction switching device capable of switching the direction of projection light emitted by a projection device, and an image projection apparatus including the projection direction switching device.
　近年、プレゼンテーションや家庭における映像鑑賞等のために、プロジェクタ等の画像映写機器の利用が促進されている。一般的なプロジェクタは、投影レンズから投射された投射光を水平方向あるいはやや上下方向に傾斜した方向に投影し、立設されたスクリーンや壁などの投影面に画像を投影することとされている。しかしながら、例えば病気や怪我のために体を起こせない等の事情がある場合には、立設された投影面ではなく、天井等に画像を投影したい場合がある。また、プラネタリウムや、画像を駆使したアトラクション施設等においては、画像の投影方向を水平方向以外の方向に切り替えたいとの要望がある。 In recent years, the use of image projection equipment such as projectors has been promoted for presentations and home video viewing. In general projectors, projection light projected from a projection lens is projected in a horizontal direction or a slightly inclined direction in the vertical direction, and an image is projected on a projection surface such as a standing screen or wall. . However, for example, when there is a situation where the body cannot be raised due to illness or injury, there is a case where it is desired to project an image on the ceiling or the like instead of a standing projection surface. Further, in planetariums and attraction facilities that make full use of images, there is a demand for switching the image projection direction to a direction other than the horizontal direction.
　かかる要求に対応可能なものとして、例えば、下記特許文献１に開示されているビデオプロジェクタのようなものが提供されている。このビデオプロジェクタは、家庭用プラネタリウムの投影機として使用可能とするためのものであり、投影レンズと交換可能であって、平面のチャートの画像を広い範囲に投影できるコンバータレンズを備えている。このビデオプロジェクタにおいては、投影レンズをコンバータレンズに交換することにより、平面チャートの画像を、例えば、室内の天井及び壁面に広く投影可能とされている。 For example, a video projector disclosed in the following Patent Document 1 is provided as one that can meet such a requirement. This video projector is intended to be used as a home planetarium projector, and is provided with a converter lens that can be replaced with a projection lens and can project a flat chart image over a wide range. In this video projector, by replacing the projection lens with a converter lens, it is possible to project a flat chart image widely on, for example, an indoor ceiling and a wall surface.
特開平６－２７３６９５号公報JP-A-6-273695
　ここで、病人や怪我人は、常に体を上方を向けて寝ている訳ではなく、左右いずれかの方向に向けた横向きの姿勢となるように体の向きを変えることが想定される。しかしながら、上述したビデオプロジェクタにおいては、投影レンズをコンバータレンズに交換する作業を行うことで画像の投影方向を上方に変化させうるものの、他の方向に簡単に切り替えることができない。 Here, it is assumed that a sick person or an injured person does not always sleep with the body facing upward, but changes the body direction so as to be in a lateral orientation in either direction. However, in the video projector described above, although the projection direction of the image can be changed upward by performing the operation of replacing the projection lens with the converter lens, it cannot be easily switched to another direction.
　また、アトラクション施設においてプロジェクタを利用しようとした場合を想定すると、従来技術のように単に画像を上方に向けて投影可能としただけでは変化に乏しく、せいぜいプラネタリウムのような静的な施設において利用できるに留まるとの問題がある。すなわち、プロジェクタにより投影される画像を、天井だけでなく、様々な方向に向けて縦横無尽に投影可能とすることができれば、アトラクション施設の娯楽性を飛躍的に向上させうると考えられるが、従来技術においてはこのような要望を達成できない。 Assuming that the projector is to be used in an attraction facility, it is possible to use it in a static facility such as a planetarium at best. There is a problem of staying in. In other words, if the image projected by the projector can be projected in various directions, not only on the ceiling, but in various directions, it is thought that the entertainment of the attraction facility can be improved dramatically. Such demands cannot be achieved in technology.
　そこで本発明は、投射装置によって発せられた投射光の方向を容易に種々の方向に切り替え可能な投射方向切替装置、及び当該投射方向切替装置を備えた画像映写機器の提供を目的とした。 Therefore, an object of the present invention is to provide a projection direction switching device capable of easily switching the direction of the projection light emitted by the projection device to various directions, and an image projection device including the projection direction switching device.
　上述した課題を解決すべく提供される本発明は、投影レンズを通して所定の軸線方向に向けて投射光を発生可能な投射装置によって発せられた投射光の方向を切り替え可能な投射方向切替装置であって、前記投射装置から入射された投射光を反射するミラーと、前記軸線周りの任意の位置において前記ミラーの前記軸線に対する傾斜を調整可能な姿勢調整装置とを備えていることを特徴とするものである。 The present invention provided to solve the above-described problem is a projection direction switching device capable of switching the direction of projection light emitted by a projection device capable of generating projection light in a predetermined axial direction through a projection lens. And a mirror that reflects the projection light incident from the projection device, and a posture adjustment device that can adjust the inclination of the mirror with respect to the axis at an arbitrary position around the axis. It is.
　本発明の投射方向切替装置は、投射装置によって発せられた投射光の進行方向を、ミラーによる反射により切り替えることができる。また、本発明の投射方向切替装置においては、姿勢調整装置を作動させることにより、ミラーの姿勢を変化させることができる。すなわち、姿勢調整装置の作動により、ミラーを投射装置における投射光の発生方向である軸線に対して周方向のいずれかの位置において軸線に対するミラーの傾斜を変化させることができる。そのため、本発明の投射方向切替装置によれば、姿勢調整装置を動作させ、前記周方向のいずれの位置でミラーを傾斜させるかを調整するだけで、投射装置によって発せられた投射光の方向を種々の方向に切り替え可能である。 The projection direction switching device of the present invention can switch the traveling direction of the projection light emitted by the projection device by reflection by a mirror. In the projection direction switching device of the present invention, the posture of the mirror can be changed by operating the posture adjustment device. In other words, the tilt of the mirror with respect to the axis can be changed at any position in the circumferential direction with respect to the axis that is the direction in which the projection light is generated in the projection device by the operation of the attitude adjustment device. Therefore, according to the projection direction switching device of the present invention, it is possible to change the direction of the projection light emitted by the projection device only by operating the attitude adjustment device and adjusting at which position in the circumferential direction the mirror is inclined. Switching to various directions is possible.
　上述した本発明の投射方向切替装置は、前記姿勢調整装置が、前記ミラーを前記軸線周りに回動させる回転アクチュエータと、前記ミラーの前記軸線に対する傾斜を変化させる傾斜アクチュエータとを備えていることが好ましい。 In the above-described projection direction switching device of the present invention, the attitude adjustment device includes a rotation actuator that rotates the mirror around the axis, and a tilt actuator that changes the tilt of the mirror with respect to the axis. preferable.
　かかる構成とすることにより、回転アクチュエータを作動させてミラーの位置を軸線周りに調整すると共に、傾斜アクチュエータを作動させてミラーの角度を調整することができる。これにより、投射装置によって発せられた投射光の方向を所望の方向に切り替えることができる。 With this configuration, it is possible to adjust the mirror position by operating the rotary actuator and adjusting the mirror position about the axis, and by operating the tilt actuator. Thereby, the direction of the projection light emitted by the projection device can be switched to a desired direction.
　上述した課題を解決すべく提供される本発明の画像映写機器は、投影レンズを通して所定の軸線方向に向けて投射光を発生可能な投射装置と、前記投射装置によって発せられた投射光の方向を切り替え可能な投射方向切替装置とを有し、前記投射方向切替装置が、前記投射装置から入射された投射光を反射するミラーと、前記軸線周りの任意の位置において前記ミラーの前記軸線に対する傾斜を調整可能な姿勢調整装置とを備えていることを特徴とするものである。 The image projection device of the present invention provided to solve the above-described problems includes a projection device capable of generating projection light in a predetermined axial direction through a projection lens, and a direction of the projection light emitted by the projection device. A projection direction switching device that can be switched, wherein the projection direction switching device reflects a projection light incident from the projection device, and tilts the mirror with respect to the axis at an arbitrary position around the axis. And an adjustable posture adjusting device.
　本発明の画像映写機器は、投射装置によって発せられた投射光の方向を切り替え可能な投射方向切替装置を備えている。また、この投射方向切替装置は、投射装置によって発せられた投射光の進行方向を切り替えるためのミラーに加え、姿勢調整装置を備えており、投射光の発生方向（軸線方向）に対して交差する方向、及び軸線周り方向にミラーの姿勢を変化させることができる。従って、本発明の画像映写機器によれば、投射装置による画像の投影方向を縦横無尽に変化させることが可能である。 The image projection device of the present invention includes a projection direction switching device capable of switching the direction of the projection light emitted by the projection device. The projection direction switching device includes a posture adjusting device in addition to a mirror for switching the traveling direction of the projection light emitted by the projection device, and intersects the generation direction (axial direction) of the projection light. The posture of the mirror can be changed in the direction and the direction around the axis. Therefore, according to the image projection apparatus of the present invention, the projection direction of the image by the projection device can be changed in any direction.
　上述した画像映写機器は、前記姿勢調整装置が、前記ミラーを前記軸線周りに回動させる回転アクチュエータと、前記ミラーの前記軸線に対する傾斜を変化させる傾斜アクチュエータとを備えていることが望ましい。 In the above-described image projection device, it is preferable that the attitude adjustment device includes a rotation actuator that rotates the mirror around the axis, and a tilt actuator that changes the tilt of the mirror with respect to the axis.
　かかる構成とすることにより、回転アクチュエータ及び傾斜アクチュエータを作動させることにより、ミラーの姿勢を自由自在に調整することができる。これにより、投射装置によって発せられた投射光の方向を所望の方向に切り替えることができる。 With this configuration, it is possible to freely adjust the attitude of the mirror by operating the rotary actuator and the tilt actuator. Thereby, the direction of the projection light emitted by the projection device can be switched to a desired direction.
　上述した本発明の画像映写機器は、前記投射装置及び前記投射方向切替装置を動作制御可能な制御装置を備えており、前記制御装置が、前記投射方向切替装置により調整されたミラーの姿勢に基づき、前記投射装置により出力される画像の調整を行わせるための画像調整信号を出力可能であることを特徴とするものであっても良い。 The image projection apparatus of the present invention described above includes a control device capable of controlling the operation of the projection device and the projection direction switching device, and the control device is based on the attitude of the mirror adjusted by the projection direction switching device. The image adjustment signal for adjusting the image output by the projection device can be output.
　上述したようにミラーの姿勢を変化させて投射方向を切り替えようとする場合には、ミラーの姿勢によって投影される画像に歪みが生じたり、反転したりすることが想定される。本発明の画像映写機器においては、ミラーの姿勢に応じて投射装置により出力される画像を制御装置によって調整可能とされている。従って、本発明の画像映写機器によれば、壁面等の投影面に投影される画像の最適化を図ることが可能となる。 As described above, when the projection direction is changed by changing the mirror posture, it is assumed that the projected image is distorted or inverted depending on the mirror posture. In the image projection device of the present invention, the image output from the projection device can be adjusted by the control device in accordance with the attitude of the mirror. Therefore, according to the image projection device of the present invention, it is possible to optimize an image projected on a projection surface such as a wall surface.
　上述した本発明の画像映写機器は、前記投射装置を動作制御可能な制御装置を備えており、前記制御装置が、投影対象物と投射装置との位置関係に基づいて、投射装置により出力される画像の調整を行わせるための画像調整信号を出力可能であることを特徴とするものとすることも可能である。 The image projection apparatus of the present invention described above includes a control device capable of controlling the operation of the projection device, and the control device is output by the projection device based on the positional relationship between the projection object and the projection device. It is also possible to output an image adjustment signal for adjusting the image.
　上述したようにミラーの姿勢を変化させて投射方向を切り替えようとする場合には、ミラーの姿勢によって壁面やスクリーン等の投影対象物との位置関係が変化するものと考えられる。本発明の画像映写機器においては、投影対象物との位置関係に応じて投射装置による出力画像を制御装置によって制御可能とされている。従って、本発明の画像映写機器によれば、投影対象物との位置関係を加味し、最適な状態で画像を投影することができる。 As described above, when the projection direction is changed by changing the mirror posture, it is considered that the positional relationship with the projection object such as the wall surface or the screen changes depending on the mirror posture. In the image projection device of the present invention, the output image by the projection device can be controlled by the control device in accordance with the positional relationship with the projection object. Therefore, according to the image projection device of the present invention, it is possible to project an image in an optimum state in consideration of the positional relationship with the projection object.
　ここで、例えば上述したように、病人や怪我人が画像映写機器を使用する場面を想定すると、病人等にとっては投影方向を切り替えるための操作が煩雑又は億劫な作業である可能性がある。また、アトラクション施設等に画像映写機器を導入する場合を想定すると、利用者の挙動に応じて投影方向を切り替えるようにすることで、さらなる演出効果の向上が見込まれる。従って、病人等の寝返りや利用者の動作等の人体の挙動を検知し、これに連動して投影方向を切り替え可能とすることで、利便性や演出効果の増大が見込めるものと想定される。 Here, for example, as described above, assuming that a sick person or an injured person uses an image projection device, the operation for switching the projection direction may be complicated or troublesome for the sick person or the like. Further, assuming that an image projection device is introduced into an attraction facility or the like, further improvement of the effect of the production is expected by switching the projection direction according to the behavior of the user. Therefore, it is assumed that the convenience and the production effect can be increased by detecting the behavior of the human body such as turning the sick person or the like and the movement of the user and switching the projection direction in conjunction with this.
　かかる知見に基づき提供される本発明の画像映写機器は、人体の挙動を検知可能な挙動検知装置を有し、前記制御装置が、前記挙動検知装置による検知情報に基づき、前記投射方向切替装置によるミラーの姿勢調整を行わせるための姿勢調整出力信号を出力可能とされたものである。 The image projection device of the present invention provided based on such knowledge has a behavior detection device capable of detecting the behavior of a human body, and the control device uses the projection direction switching device based on detection information by the behavior detection device. An attitude adjustment output signal for adjusting the attitude of the mirror can be output.
　かかる構成によれば、挙動検知装置による検知情報に基づいて人体の挙動を検知し、これに連動して投射方向切替装置によるミラーの姿勢調整を行わせ、投影方向を切り替えることが可能となる。従って、本発明によれば、利便性や演出効果の面においてさらに優れた画像映写機器を提供することができる。 According to such a configuration, it is possible to detect the behavior of the human body based on the detection information from the behavior detection device, adjust the mirror posture by the projection direction switching device in conjunction with this, and switch the projection direction. Therefore, according to the present invention, it is possible to provide an image projection device that is further superior in terms of convenience and performance effects.
　ここで、一般的に用いられているプロジェクタ等においては、強力な投射光が投影レンズにおいて発生する。そのため、投影レンズを覗き込もうとすると、目に大きな負荷がかかり、目を痛める可能性があるという問題がある。 Here, in a projector or the like that is generally used, powerful projection light is generated in the projection lens. For this reason, when looking into the projection lens, there is a problem that a large load is applied to the eyes and the eyes may be damaged.
　かかる知見に基づいて提供される本発明の画像映写機器は、人体の挙動を検知可能な挙動検知装置を有し、前記挙動検知装置により前記投影レンズに対する人体の近接が検知されることを条件として、前記投射装置によって発せられた投射光の進行が、前記ミラーにより遮断されることを特徴とするものである。 The image projection device of the present invention provided on the basis of such knowledge has a behavior detection device capable of detecting the behavior of the human body, on the condition that the proximity of the human body to the projection lens is detected by the behavior detection device. The progress of the projection light emitted by the projection device is blocked by the mirror.
　本発明の画像映写機器においては、投影レンズに対して人体が近接したことが挙動検知装置によって検知されることを条件として、投射装置によって発せられた投射光の進行が、ミラーによって遮断される。これにより、人が投影レンズを覗き込もうとしても、ミラーによって投射光が遮られることになり、目を痛めてしまうことを防止できる。 In the image projection apparatus of the present invention, the progress of the projection light emitted by the projection device is blocked by the mirror on condition that the behavior detection device detects that the human body is close to the projection lens. Thereby, even if a person tries to look into the projection lens, the projection light is blocked by the mirror, and the eyes can be prevented from being damaged.
　ここで、上述した画像映写機器をアトラクション施設等に導入する場合を想定すると、投射装置により投射される画像の変化に応じて投影方向を切り替えるようにすることで、さらなる演出効果の向上が見込まれる。 Here, assuming that the above-described image projection device is introduced to an attraction facility or the like, further improvement in the effect of the effect is expected by switching the projection direction according to the change of the image projected by the projection device. .
　かかる知見に基づいて提供される本発明の画像映写機器は、前記制御装置が、前記投射装置により投射される画像の変化情報を予め把握可能であり、前記変化情報に基づき、前記投射方向切替装置によるミラーの姿勢調整を行わせるための姿勢調整信号を出力可能なものである。 In the image projection device of the present invention provided based on such knowledge, the control device can grasp in advance the change information of the image projected by the projection device, and based on the change information, the projection direction switching device It is possible to output an attitude adjustment signal for adjusting the attitude of the mirror.
　かかる構成によれば、投射装置により投射される画像の変化に連動して投射方向が切り替わるため、アトラクション等における演出効果の向上を図ることが可能となる。 According to such a configuration, since the projection direction is switched in conjunction with a change in the image projected by the projection device, it is possible to improve the effect of attraction and the like.
　本発明によれば、投射装置によって発せられた投射光の方向を容易に種々の方向に切り替え可能な投射方向切替装置、及び当該投射方向切替装置を備えた画像映写機器を提供できる。 According to the present invention, it is possible to provide a projection direction switching device that can easily switch the direction of the projection light emitted by the projection device to various directions, and an image projection device including the projection direction switching device.
本発明の一実施形態に係る投射方向切替装置を備えた画像映写機器の概略構成を示す斜視図である。It is a perspective view showing a schematic structure of an image projection device provided with a projection direction switching device according to an embodiment of the present invention. 図１に示した画像映写機器の設置例を示した斜視図である。It is the perspective view which showed the example of installation of the image projection apparatus shown in FIG. （ａ）は本発明の一実施形態に係る投射方向切替装置を示した斜視図、（ｂ）は（ａ）のＸ－Ｘ断面図である。(A) is the perspective view which showed the projection direction switching apparatus based on one Embodiment of this invention, (b) is XX sectional drawing of (a). 図１に示した画像映写機器が備える制御装置の構成を示したブロック図である。It is the block diagram which showed the structure of the control apparatus with which the image projection apparatus shown in FIG. 1 is provided. （ａ）は本発明の他の実施形態に係る投射方向切替装置を備えた画像映写機器の概略構成を示す斜視図、（ｂ）は当該投射方向切替装置の動作の一例を説明するための斜視図である。(A) is a perspective view which shows schematic structure of the image projection apparatus provided with the projection direction switching apparatus which concerns on other embodiment of this invention, (b) is a perspective view for demonstrating an example of operation | movement of the said projection direction switching apparatus. FIG.
　以下、本発明の一実施形態に係る画像映写機器１０、及びこれを構成する投射方向切替装置５０について、病院等に設置されるベッド１２に隣接する位置、さらに詳細にはベッドヘッドボード１４に隣接する位置に設置するものを例に挙げ、図面を参照しつつ詳細に説明する。図１に示すように、画像映写機器１０は、投射装置２０と、投射方向切替装置５０と、制御装置７０とを有する。 Hereinafter, the image projection device 10 according to an embodiment of the present invention and the projection direction switching device 50 constituting the image projection device 10 are positioned adjacent to a bed 12 installed in a hospital or the like, more specifically, adjacent to a bed headboard 14. This will be described in detail with reference to the drawings. As shown in FIG. 1, the image projection device 10 includes a projection device 20, a projection direction switching device 50, and a control device 70.
　投射装置２０は、いわゆるプロジェクタであり、パーソナルコンピュータや、画像や動画の再生専用装置等の入力装置３０から入力された入力信号に基づいて投影画像を形成し、これを投射可能とするものである。入力装置３０は、図１に示すように投射装置２０に内蔵等されて一体化されたものであっても、投射装置２０とは別に設けられたものであっても良い。 The projection device 20 is a so-called projector, and forms a projection image based on an input signal input from a personal computer or an input device 30 such as a dedicated reproduction device for images and moving images, and enables projection of the projection image. . As shown in FIG. 1, the input device 30 may be integrated with the projection device 20 or may be provided separately from the projection device 20.
　投射装置２０は、筐体２２の内部に光源を含む光路構成要素（図示せず）を内蔵している。投射装置２０は、筐体２２の外面（本実施形態では天面）であって内部に形成されている光路の末端をなす位置に投影レンズ２４を有する。投影レンズ２４の基部には台座２２ａが設けられており、筐体２２の天面からやや上方に突き出ている。これにより、後に詳述する投射方向切替装置５０において反射された投射光の光路が遮られることを防止できる。また、投影レンズ２４に相当する部分のみにおいて筐体２２を突出させることにより、筐体２２を最小限の大きさとすることができる。なお、台座２２ａの外観形状については、投射光の光路が遮られない形状であればいかなる形状であっても良い。 The projection device 20 has an optical path component (not shown) including a light source built in the housing 22. The projection device 20 includes a projection lens 24 at a position which is the outer surface of the housing 22 (the top surface in the present embodiment) and forms the end of an optical path formed inside. A pedestal 22 a is provided at the base of the projection lens 24 and protrudes slightly upward from the top surface of the housing 22. Thereby, it can prevent that the optical path of the projection light reflected in the projection direction switching apparatus 50 explained in full detail behind is interrupted. Further, by projecting the housing 22 only at a portion corresponding to the projection lens 24, the housing 22 can be made to have a minimum size. The appearance of the base 22a may be any shape as long as the optical path of the projection light is not blocked.
　投射装置２０は、投影レンズ２４を通して、所定の軸線方向に向けて直線的に投射光を発生させることができる。投射装置２０は、投影レンズ２４から横方向（水平方向、あるいは水平方向に対して上下方向に傾斜を有する方向）に向けて投射光を発生可能なように設置することも可能である。本実施形態では、画像映写機器１０は、図２に示すようにベッド１２のベッドヘッドボード１４に隣接する位置において、投影レンズ２４が上方に向く姿勢、すなわち投射光を天井側に向けて発生可能なように設置される。また、後に詳述する投射方向切替装置５０により投射光の進行方向をベッド１２で寝ている使用者の足下側に切り替えた場合にベッドヘッドボード１４等によって光路が遮られないように設置される。具体的には、投射装置２０は、例えば図２に示すように床面に配置された台座１６の上に設置する方法や、ベッドヘッドボード１４あるいは壁面に吊り下げる等の方法により、投射方向切替装置５０がベッドヘッドボード１４の上端部よりも上方に突出した状態になるように設置される。 The projection device 20 can generate projection light linearly through the projection lens 24 in a predetermined axial direction. The projection device 20 can also be installed so as to be able to generate projection light from the projection lens 24 in the lateral direction (horizontal direction or a direction having an inclination in the vertical direction with respect to the horizontal direction). In this embodiment, as shown in FIG. 2, the image projection device 10 can generate a posture in which the projection lens 24 faces upward, that is, the projection light is directed toward the ceiling at a position adjacent to the bed head board 14 of the bed 12. Is installed. Further, when the traveling direction of the projection light is switched to the feet of the user sleeping on the bed 12 by the projection direction switching device 50 described in detail later, the light path is installed so as not to be blocked by the bed head board 14 or the like. . Specifically, the projection device 20 switches the projection direction by, for example, a method of installing on a pedestal 16 arranged on the floor as shown in FIG. 2 or a method of hanging on the bed head board 14 or a wall surface. The apparatus 50 is installed so as to protrude upward from the upper end of the bed head board 14.
　図３に示すように、投射方向切替装置５０は、本体ケース５２の内部にミラー５４及び姿勢調整装置５６を内蔵させたものである。本体ケース５２は、樹脂やガラス等の透光性を有する素材によって形成されたドーム状の外観形状を有するケースである。本体ケース５２は、投影レンズ２４に対して被せるようにして設置される。 As shown in FIG. 3, the projection direction switching device 50 includes a main body case 52 in which a mirror 54 and an attitude adjustment device 56 are built. The main body case 52 is a case having a dome-like appearance formed of a light-transmitting material such as resin or glass. The main body case 52 is installed so as to cover the projection lens 24.
　ミラー５４は、投射装置２０から入射された投射光を反射するためのものである。また、姿勢調整装置５６は、ミラー５４の姿勢調整を行うためのものである。姿勢調整装置５６を作動させることにより、本体ケース５２の内部においてミラー５４の姿勢を自由に変化させることができる。すなわち、姿勢調整装置５６を作動させることにより、投影レンズ２４において発生する投射光の軸線Ｌ周り（図３において矢印Ａ方向）にミラー５４を回動させることができると共に、図３において矢印Ｂで示すように軸線Ｌに対するミラー５４の傾斜を適宜変化させることが可能とされている。 The mirror 54 is for reflecting the projection light incident from the projection device 20. The attitude adjustment device 56 is for adjusting the attitude of the mirror 54. By operating the attitude adjustment device 56, the attitude of the mirror 54 can be freely changed inside the main body case 52. That is, by operating the attitude adjustment device 56, the mirror 54 can be rotated around the axis L of the projection light generated in the projection lens 24 (in the direction of arrow A in FIG. 3), and the arrow B in FIG. As shown, the inclination of the mirror 54 relative to the axis L can be changed as appropriate.
　姿勢調整装置５６は、ミラー５４の姿勢を変化させうるものであればいかなる構成のものであっても良いが、例えば次のようなものとすることができる。姿勢調整装置５６は、ミラー台６０と、回転アクチュエータ６５と、傾斜アクチュエータ６７を有する。ミラー台６０は、ドーナツ型の台座部６２と、ミラー支持機構６４とを有する。 The posture adjusting device 56 may have any configuration as long as it can change the posture of the mirror 54. For example, the posture adjusting device 56 may be as follows. The attitude adjustment device 56 includes a mirror base 60, a rotation actuator 65, and a tilt actuator 67. The mirror base 60 includes a donut-shaped base 62 and a mirror support mechanism 64.
　台座部６２の中央には開口領域６６が設けられており、投射方向切替装置５０を投射装置２０に対して取り付けた状態において、投影レンズ２４から発生した投射光を開口領域６６を通じて本体ケース５２内に導入可能とされている。また、台座部６２は、回転アクチュエータ６５を作動させることにより、軸線Ｌ周りに回動可能とされている。すなわち、傾斜調整されるミラー５４を軸線Ｌ周りにおいて位置決めできる。 An opening area 66 is provided in the center of the pedestal 62, and the projection light generated from the projection lens 24 is passed through the opening area 66 in the main body case 52 when the projection direction switching device 50 is attached to the projection apparatus 20. It is possible to introduce to. Further, the pedestal portion 62 can be rotated around the axis L by operating the rotary actuator 65. That is, the mirror 54 to be tilted can be positioned around the axis L.
　ミラー支持機構６４は、従来公知のヒンジ機構等によって構成されており、ミラー５４を傾斜を変化させうるように支持している。ミラー支持機構６４は、傾斜アクチュエータ６７から動力を受けることにより、ミラー５４の傾斜を変化させることが可能とされている。ミラー５４を傾斜させると、台座部６２の中央に設けられた開口領域６６に対して投影光の進行方向下流側の位置（本実施形態では開口領域６６に対して上方の位置）を横断した状態とすることができる。すなわち、ミラー５４を傾斜させることにより、ミラー５４を軸線Ｌに対して交差した状態とすることができる。そのため、ミラー５４を傾斜させることにより、図３（ｂ）において矢印α１で示すように、台座部６２の中央に設けられた開口領域６６から本体ケース５２内に導入された投射光をミラー５４において反射させ、投射光の進行方向を屈曲させることができる。本体ケース５２が全周に亘って透光性を有するため、ミラー５４において反射した投射光（反射光）は、本体ケース５２を通じて外部に放出される。 The mirror support mechanism 64 is configured by a conventionally known hinge mechanism or the like, and supports the mirror 54 so that the inclination can be changed. The mirror support mechanism 64 can change the tilt of the mirror 54 by receiving power from the tilt actuator 67. When the mirror 54 is tilted, a state of crossing a position downstream of the opening region 66 provided in the center of the pedestal 62 in the traveling direction of the projection light (a position above the opening region 66 in the present embodiment). It can be. That is, by tilting the mirror 54, the mirror 54 can be made to intersect the axis L. Therefore, by inclining the mirror 54, the projection light introduced into the main body case 52 from the opening region 66 provided in the center of the pedestal portion 62 is reflected in the mirror 54 as indicated by an arrow α1 in FIG. It can be reflected and the traveling direction of the projection light can be bent. Since the main body case 52 has translucency over the entire circumference, the projection light (reflected light) reflected by the mirror 54 is emitted to the outside through the main body case 52.
　また、図３において一点鎖線で示すように、ミラー５４を立設させた状態にすると、台座部６２の中央に設けられた開口領域６６を外れた位置において、ミラー５４が軸線Ｌに対して略平行な状態となる。そのため、ミラー５４を立設させると、台座部６２の開口領域６６から本体ケース５２内に導入された投射光は、図３（ｂ）において矢印α２で示すように、ミラー５４により反射されることなく、軸線Ｌに沿って真っ直ぐ進行する。 3, when the mirror 54 is erected, the mirror 54 is substantially in the direction of the axis L at a position outside the opening region 66 provided at the center of the pedestal 62. It becomes a parallel state. Therefore, when the mirror 54 is erected, the projection light introduced into the main body case 52 from the opening region 66 of the pedestal 62 is reflected by the mirror 54 as indicated by an arrow α2 in FIG. It progresses straight along the axis L.
　さらに、図３において二点鎖線で示すように、ミラー５４を軸線Ｌに対して略直交するように倒した状態とすることで、開口領域６６が閉塞され、投射装置２０によって発せられた投射光の進行が、ミラー５４によって遮断された状態になる。すなわち、ミラー５４を倒すことで、投影レンズ２４に蓋を被せたのと同様の効果が得られる。 Further, as shown by a two-dot chain line in FIG. 3, the projection area 20 is closed by tilting the mirror 54 so as to be substantially orthogonal to the axis L, and the projection light emitted by the projection device 20 is emitted. Will be blocked by the mirror 54. That is, by tilting the mirror 54, the same effect as that obtained by covering the projection lens 24 with the lid can be obtained.
　制御装置７０は、投射装置２０の内部機構２１及び投射方向切替装置５０に指令信号を出力し、これらの動作制御を行うものである。制御装置７０は、従来公知のパーソナルコンピュータを初めとする制御機器によって構成されている。制御装置７０は、外部に別途設けられていても良いが、本実施形態では投射装置２０に内蔵されている。制御装置７０は、制御処理部７２と、入力部７４と、出力部７６とを有する。制御装置７０は、入力部７４において入力されたミラー５４の姿勢調整の基準となる情報（入力情報）に基づき、制御処理部７２において演算処理を行い、各種の制御信号を出力部７６から出力可能とされている。 The control device 70 outputs a command signal to the internal mechanism 21 of the projection device 20 and the projection direction switching device 50, and controls these operations. The control device 70 is configured by a control device such as a conventionally known personal computer. The control device 70 may be provided separately outside, but is incorporated in the projection device 20 in the present embodiment. The control device 70 includes a control processing unit 72, an input unit 74, and an output unit 76. The control device 70 can perform arithmetic processing in the control processing unit 72 and output various control signals from the output unit 76 based on information (input information) that serves as a reference for attitude adjustment of the mirror 54 input in the input unit 74. It is said that.
　具体的には、制御装置７０の入力部７４には、画像映写機器１０の操作を行うためのリモートコントローラ等の操作装置７７や、各種のセンサ類や装置類を入力デバイス７５として有線又は無線により接続することができる。入力部７４に接続可能なセンサ類や装置類としては、例えば人体の挙動を検知するための挙動検知装置７８や動作検知センサ、赤外線センサ等のセンサ８０を採用することができる。 Specifically, the input unit 74 of the control device 70 includes an operation device 77 such as a remote controller for operating the image projection device 10, and various sensors and devices as input devices 75 by wire or wirelessly. Can be connected. As sensors and devices connectable to the input unit 74, for example, a behavior detection device 78 for detecting the behavior of a human body, a motion detection sensor, a sensor 80 such as an infrared sensor can be employed.
　入力部７４に操作装置７７が接続されている場合には、この操作装置による操作に基づき、制御処理部７２において画像を投影する方向、及び当該方向に画像を投影するために適切なミラー５４の姿勢が導出される。そして、導出されたミラー５４の姿勢とするために必要な動作信号（姿勢調整信号）が生成され、出力部７６から姿勢調整装置５６に向けて出力される。これにより、回転アクチュエータ６５及び傾斜アクチュエータ６７が作動し、ミラー５４の姿勢が調整される。同様に、入力部７４に人体の挙動を検知するための挙動検知装置７８や各種のセンサ８０が接続されている場合には、挙動検知装置７８により検知された挙動やセンサ８０による検知結果に基づいて姿勢調整信号の生成及び出力がなされ、ミラー５４の姿勢が調整される。 When the operation device 77 is connected to the input unit 74, based on an operation by the operation device 74, the control processing unit 72 projects an image and an appropriate mirror 54 for projecting the image in the direction. The posture is derived. Then, an operation signal (posture adjustment signal) necessary to obtain the derived posture of the mirror 54 is generated and output from the output unit 76 toward the posture adjustment device 56. As a result, the rotary actuator 65 and the tilt actuator 67 are operated, and the posture of the mirror 54 is adjusted. Similarly, when a behavior detection device 78 and various sensors 80 for detecting the behavior of the human body are connected to the input unit 74, based on the behavior detected by the behavior detection device 78 and the detection results by the sensor 80. Thus, the posture adjustment signal is generated and output, and the posture of the mirror 54 is adjusted.
　挙動検知装置７８を入力部７４に接続した場合を例に挙げてさらに詳細に説明すると、例えばベッドに横たわる病人や怪我人等の使用者が天井を見ている状態においては、天井に画像が投影されるようにミラー５４の向きを調整するための姿勢調整信号が出力される。また、挙動検知装置７８により使用者が寝返り等により壁面側に向くように姿勢を変えたことが検知された場合には、使用者の体が向いている方向の壁面に画像を投影できるようにミラー５４の向きを調整するための姿勢調整信号が出力される。 The case where the behavior detection device 78 is connected to the input unit 74 will be described in more detail as an example. For example, when a user such as a sick person or an injured person lying on a bed is looking at the ceiling, an image is projected on the ceiling. Thus, an attitude adjustment signal for adjusting the orientation of the mirror 54 is output. Further, when it is detected by the behavior detection device 78 that the user has changed his / her posture so as to turn to the wall surface due to turning over or the like, an image can be projected on the wall surface in the direction in which the user's body is facing. An attitude adjustment signal for adjusting the orientation of the mirror 54 is output.
　また、制御処理部７２は、投射方向切替装置５０により調整されたミラーの姿勢に基づき、投射装置２０により出力される画像の調整を行わせるための画像調整信号を出力可能である。画像調整出力信号は、投射装置２０及び入力装置３０のいずれか一方又は双方に入力される。これにより、最終的にスクリーンや壁面、天井面等の投影対象物に対して投影される画像が歪みや反転等の違和感がないものとなるように、投射装置２０や入力装置３０の出力調整がなされる。 Further, the control processing unit 72 can output an image adjustment signal for adjusting the image output by the projection device 20 based on the attitude of the mirror adjusted by the projection direction switching device 50. The image adjustment output signal is input to one or both of the projection device 20 and the input device 30. Thereby, the output adjustment of the projection device 20 and the input device 30 is performed so that the image finally projected on the projection target such as the screen, the wall surface, and the ceiling surface does not have a sense of incongruity such as distortion or inversion. Made.
　上述したように、本実施形態の画像映写機器１０は、投射方向切替装置５０を備えており、投射装置２０によって発せられた投射光の進行方向を、ミラー５４による反射によって切り替えることができる。すなわち、本実施形態の投射方向切替装置５０は、姿勢調整装置５６を作動させることにより、ミラー５４の姿勢を変化させ、投射光の進行方向が任意の方向となるように容易かつ自由自在に切り替えることができる。そのため、画像映写機器１０は、病人や怪我人等のように体の自由が利かない人であっても、任意の姿勢で画像を楽しむことができる。 As described above, the image projection device 10 of the present embodiment includes the projection direction switching device 50, and can switch the traveling direction of the projection light emitted by the projection device 20 by reflection by the mirror 54. In other words, the projection direction switching device 50 according to the present embodiment changes the posture of the mirror 54 by operating the posture adjustment device 56, and easily and freely switches the traveling direction of the projection light to be an arbitrary direction. be able to. Therefore, the image projection device 10 can enjoy an image in an arbitrary posture even for a person who does not have freedom of body such as a sick person or an injured person.
　なお、本実施形態で示した例は、ベッド１２のベッドヘッドボード１４に隣接する位置に画像映写機器１０を設置したものであり、病院等において好適に利用することができる。具体的には、入院施設や、人工透析施設、高級志向の産婦人科医院、健康診断施設等の医療現場や、介護施設等において好適に利用できる。また、画像映写機器１０は、医療現場や介護施設以外においても好適に使用可能である。具体的には、テーマパーク等のアトラクション施設において画像を用いてアトラクションの演出を行うための用途や、ホテル、一般住宅、客船船室等において画像を楽しむ等の用途でも使用することができる。 Note that the example shown in the present embodiment is one in which the image projection device 10 is installed at a position adjacent to the bed head board 14 of the bed 12 and can be suitably used in a hospital or the like. Specifically, it can be suitably used in medical facilities such as hospitalized facilities, artificial dialysis facilities, luxury-oriented obstetrics and gynecology clinics, health examination facilities, and nursing care facilities. Further, the image projection device 10 can be suitably used in places other than medical sites and nursing homes. Specifically, it can also be used for the purpose of producing an attraction using an image in an attraction facility such as a theme park, or for enjoying an image in a hotel, a general house, a passenger ship cabin or the like.
　上述した投射方向切替装置５０は、ミラー５４の向きを切り替えるための姿勢調整装置５６を備えており、ミラー５４の姿勢を投射光の発生方向（軸線Ｌ方向）に対して交差する方向、及び軸線Ｌ周り方向に変化させることができる。そのため、投射方向切替装置５０によれば、投射装置による画像の投影方向を縦横無尽に変化させることが可能である。そのため、投射方向切替装置５０によれば、単一の投影対象物に対して画像を投影し続ける静的な使用方法だけでなく、投影対象物を次々と切り替えつつ画像を投影するような動的な形態での使用が可能となり、上述したようにアトラクション施設等における演出効果をより一層向上させうる。 The projection direction switching device 50 described above includes a posture adjustment device 56 for switching the direction of the mirror 54, and a direction in which the posture of the mirror 54 intersects the generation direction of the projection light (axis L direction) and the axis line. It can be changed around L. Therefore, according to the projection direction switching device 50, it is possible to change the projection direction of the image by the projection device in any direction. Therefore, according to the projection direction switching device 50, not only a static usage method of continuously projecting an image onto a single projection object, but also a dynamic method of projecting an image while sequentially switching the projection object. Can be used in various forms, and as described above, the effect of attraction facilities and the like can be further improved.
　また、画像映写機器１０においては、投射方向切替装置５０により調整されたミラー５４の姿勢に基づき、制御装置７０により投射装置２０により出力される画像の調整を行わせるための画像調整信号を出力可能とされている。これにより、壁面等の投影面に投影される画像に歪みや反転等の不具合が生じないよう、最適化を図ることが可能となる。 Further, the image projection device 10 can output an image adjustment signal for adjusting the image output from the projection device 20 by the control device 70 based on the attitude of the mirror 54 adjusted by the projection direction switching device 50. It is said that. As a result, it is possible to optimize the image projected on the projection surface such as the wall surface so as not to cause problems such as distortion and inversion.
　なお、投影対象物に投影される画像の品質は、画像映写機器１０と投影対象物との距離や、画像映写機器１０に対する投影対象物の角度等、投影対象物と投射装置２０との位置関係にも依存する可能性が高い。そのため、画像映写機器１０は、投影対象物と投射装置２０との位置関係を導出あるいは設定するための位置関係把握手段をさらに設け、この位置関係把握手段により把握された位置関係に応じて、投射装置２０により出力される画像の調整を行わせるための画像調整信号を制御装置７０から出力可能としても良い。これにより、投影対象物との位置関係を加味し、最適な状態で画像を投影することができる。 Note that the quality of the image projected on the projection object is the positional relationship between the projection object and the projection device 20, such as the distance between the image projection apparatus 10 and the projection object, the angle of the projection object with respect to the image projection apparatus 10, and the like. There is a high possibility that it depends on. Therefore, the image projection apparatus 10 further includes a positional relationship grasping unit for deriving or setting the positional relationship between the projection object and the projection device 20, and according to the positional relationship grasped by the positional relationship grasping unit, the projection is performed. An image adjustment signal for adjusting the image output by the device 20 may be output from the control device 70. Accordingly, it is possible to project an image in an optimal state in consideration of the positional relationship with the projection target.
　上述した画像映写機器１０は、挙動検知装置７８を有し、挙動検知装置７８による検知情報に基づいて制御装置７０から姿勢調整出力信号を出力可能とされている。これにより、挙動検知装置７８によって検知された人体の挙動に連動してミラー５４の姿勢調整を行わせ、投影方向を切り替えることが可能となり、利便性や演出効果のさらなる向上に資することが可能となる。なお、挙動検知装置７８は、人体の挙動を検知可能なものであればいかなるものであっても良いが、身動きを取れないあるいは取りづらい病人や怪我人が使用することが想定される場合には、頭位、特に視線方向の動きを人体の挙動として検知可能なものとすることが好ましい。このようにすることで、障がい者、高齢者、病人、あるいは高齢者等の社会生活における弱者にとっても使用しやすい、いわゆるバリアフリーに対応した機器として画像映写機器１０を用いることが可能となる。 The image projection device 10 described above has a behavior detection device 78 and can output an attitude adjustment output signal from the control device 70 based on detection information by the behavior detection device 78. As a result, the posture of the mirror 54 can be adjusted in conjunction with the behavior of the human body detected by the behavior detection device 78, and the projection direction can be switched. Become. The behavior detection device 78 may be any device that can detect the behavior of the human body. However, if the behavior detection device 78 is assumed to be used by a sick or injured person who cannot move or is difficult to move. It is preferable that the head position, particularly the movement in the line of sight, can be detected as the behavior of the human body. In this way, the image projection device 10 can be used as a so-called barrier-free device that is easy to use for people with disabilities in the social life such as disabled people, elderly people, sick people, and elderly people.
　また、上述したように、投射方向切替装置５０は、ミラー５４を軸線Ｌに対して略直交するように倒した状態とすることで、投射装置２０によって発せられた投射光の進行をミラー５４によって遮断した状態とすることができる。従って、挙動検知装置７８により投影レンズ２４に対して人が近接したことが検知されることを条件としてミラー５４を倒すように動作制御することにより、人が投影レンズ２４を覗き込もうとした場合に投射光によって目を痛めてしまうことを防止可能な安全性の高い機器とすることができる。 Further, as described above, the projection direction switching device 50 causes the projection of the projection light emitted by the projection device 20 by the mirror 54 by setting the mirror 54 in a state of being tilted so as to be substantially orthogonal to the axis L. It can be set as the interruption | blocking state. Accordingly, when the person tries to look into the projection lens 24 by controlling the operation so that the mirror 54 is tilted on condition that the behavior detection device 78 detects that the person has approached the projection lens 24. Therefore, it is possible to provide a highly safe device capable of preventing the eyes from being damaged by the projection light.
　また、上述した画像映写機器１０をアトラクション施設等に導入する場合を想定すると、投射装置２０により投射される画像の変化は予め決定されているものと想定される。そのため、投射装置２０により投射される画像の変化情報を制御装置７０に予め把握させておき、変化情報に基づいて投射方向切替装置５０によるミラー５４の姿勢調整を行わせるための姿勢調整信号を出力可能とすることが可能である。このようにすることで、投射装置２０により投射される画像の変化に連動して投射方向が切り替わるため、アトラクション等における演出効果の向上を図ることが可能となる。 Further, assuming that the above-described image projection device 10 is introduced into an attraction facility or the like, it is assumed that the change in the image projected by the projection device 20 is determined in advance. Therefore, the control device 70 is made to grasp in advance the change information of the image projected by the projection device 20, and the posture adjustment signal for causing the projection direction switching device 50 to adjust the posture of the mirror 54 based on the change information is output. It can be possible. By doing in this way, since a projection direction switches in response to the change of the image projected by the projection apparatus 20, it becomes possible to aim at the improvement of the effect in attraction etc.
　上述した画像映写機器１０に用いられている投射方向切替装置５０は、ミラー５４を周方向に回動させつつ傾斜を調整可能なものであるが、本発明はこれに限定される訳ではなく、軸線Ｌ周りの任意の位置においてミラー５４の傾斜を調整可能なものであれば良い。具体的には、例えば以下に記載するような投射方向切替装置１５０等としても良い。 The projection direction switching device 50 used in the image projection device 10 described above can adjust the inclination while rotating the mirror 54 in the circumferential direction, but the present invention is not limited to this. What is necessary is just to be able to adjust the inclination of the mirror 54 at an arbitrary position around the axis L. Specifically, for example, a projection direction switching device 150 as described below may be used.
　図５に示すように、投射方向切替装置１５０は、投影レンズ２４を取り囲むように設けられた複数（図示例では４枚）のフラップ１５２ａ～１５２ｄと、各フラップ毎に独立的に動作可能なように設けられたアクチュエータ（図示せず）とを有する。各フラップ１５２ａ～１５２ｄの内面側には、それぞれミラー１５４ａ～１５４ｄが設けられている。また、各フラップ１５２ａ～１５２ｄは、それぞれ基端部においてヒンジ等によって枢支されており、各アクチュエータを作動させることによりフラップ１５２ａ～１５２ｄをそれぞれ独立的に角度調整することができる。 As shown in FIG. 5, the projection direction switching device 150 can operate independently for each of the plurality of (four in the illustrated example) flaps 152a to 152d provided so as to surround the projection lens 24. And an actuator (not shown). Mirrors 154a to 154d are provided on the inner surfaces of the flaps 152a to 152d, respectively. Further, the flaps 152a to 152d are pivotally supported by hinges or the like at the base end portions, respectively, and the angles of the flaps 152a to 152d can be independently adjusted by operating the actuators.
　上述した投射方向切替装置１５０は、任意のアクチュエータを作動させることにより、各ミラー１５４ａ～１５４ｄの傾斜を独立的に調整することができる。そのため、各ミラー１５４ａ～１５４ｄのうち、投射方向切替装置１５０によって画像を投影したい方向に投射光を反射させるために必要なものを選択し、選択されたものについて傾斜を調整することにより、投射方向切替装置５０を用いた場合と同様に任意の方向に画像を投影することができる。具体的には、例えば図５（ｂ）に示すように、フラップ１５２ｂを傾斜姿勢とし、他のフラップ１５２ａ，１５２ｃ，１５２ｄを倒した状態とすることにより、フラップ１５２ｂに取り付けられたミラー１５４ｂによって投射光を反射させ、投影方向を調整することができる。 The projection direction switching device 150 described above can independently adjust the inclinations of the mirrors 154a to 154d by operating an arbitrary actuator. For this reason, among the mirrors 154a to 154d, the projection direction switching device 150 selects what is necessary to reflect the projection light in the direction in which the image is to be projected, and adjusts the inclination of the selected one to thereby change the projection direction. As in the case of using the switching device 50, an image can be projected in an arbitrary direction. Specifically, for example, as shown in FIG. 5B, the flap 152b is inclined and the other flaps 152a, 152c, and 152d are brought into a tilted state, so that projection is performed by a mirror 154b attached to the flap 152b. Light can be reflected and the projection direction can be adjusted.
　なお、投射方向切替装置１５０に用いられるフラップ１５２ａ～１５２ｄについては、複数枚であれば良く、必要に応じて増減しても良い。具体的には、図２に示すようにベッドヘッドボード１４に隣接する位置に画像映写機器１０を設置する場合には、左右の壁面あるいはベッド１２に横たわる使用者の足下側の壁面に画像を投影できれば良く、頭側の壁面には投影する必要がない。そのため、この場合には、上述したフラップ１５２ａ～１５２ｄのうち、ベッドヘッドボード１４に隣接する位置に配置した場合に使用者の頭側の壁面に向けて投影光を反射するためのものを省略した構成としても良い。 The flaps 152a to 152d used in the projection direction switching device 150 may be a plurality of flaps, and may be increased or decreased as necessary. Specifically, as shown in FIG. 2, when the image projection device 10 is installed at a position adjacent to the bed headboard 14, the image is projected on the left and right wall surfaces or the wall surface of the user's feet lying on the bed 12. It only needs to be possible, and it is not necessary to project it onto the wall on the head side. Therefore, in this case, among the above-described flaps 152a to 152d, those for reflecting the projection light toward the wall surface on the head side of the user when arranged at a position adjacent to the bed head board 14 are omitted. It is good also as a structure.
　以上、本発明の実施形態について説明したが、本発明はこれに限定されるものではなく、本発明の主旨を逸脱しない範囲でさらに種々の変更を加えて実施することができる。 As mentioned above, although embodiment of this invention was described, this invention is not limited to this, It can implement by adding a various change further in the range which does not deviate from the main point of this invention.
　本発明の投射方向切替装置は、投射装置との組み合わせにより、投射方向を切り替える用途全般において利用可能である。また、本発明の画像映写機器は、医療機関や一般住宅、アトラクション施設等、様々な施設及び用途において利用可能である。 The projection direction switching device of the present invention can be used in general applications for switching the projection direction by combination with the projection device. In addition, the image projection device of the present invention can be used in various facilities and applications such as medical institutions, ordinary houses, and attraction facilities.
　１０　　　　　画像映写機器
　２０　　　　　投射装置
　２４　　　　　投影レンズ
　５０，１５０　投射方向切替装置
　５４，１５４　ミラー
　５６　　　　　姿勢調整装置
　７０　　　　　制御装置
　７８　　　　　挙動検知装置
　　Ｌ　　　　　軸線 DESCRIPTION OF SYMBOLS 10 Image projection apparatus 20 Projection apparatus 24 Projection lens 50,150 Projection direction switching apparatus 54,154 Mirror 56 Attitude adjustment apparatus 70 Control apparatus 78 Behavior detection apparatus L Axis line

Claims (9)

  1. 　投影レンズを通して所定の軸線方向に向けて投射光を発生可能な投射装置によって発せられた投射光の方向を切り替え可能な投射方向切替装置であって、
    　前記投影レンズの外周側に配置されたミラーと、
    　前記軸線周りの任意の位置において前記軸線に対する前記ミラーの傾斜を調整可能な姿勢調整装置とを備えていることを特徴とする投射方向切替装置。     A projection direction switching device capable of switching the direction of projection light emitted by a projection device capable of generating projection light in a predetermined axial direction through a projection lens,
    A mirror disposed on the outer peripheral side of the projection lens;
    A projection direction switching device comprising: an attitude adjustment device capable of adjusting an inclination of the mirror with respect to the axis at an arbitrary position around the axis.
  2. 　前記姿勢調整装置が、
    　前記ミラーを前記軸線周りに回動させる回転アクチュエータと、
    　前記ミラーの前記軸線に対する傾斜を変化させる傾斜アクチュエータとを備えていることを特徴とする請求項１に記載の投射方向切替装置。     The posture adjusting device is
    A rotary actuator for rotating the mirror about the axis;
    The projection direction switching device according to claim 1, further comprising a tilt actuator that changes a tilt of the mirror with respect to the axis.
  3. 　投影レンズを通して所定の軸線方向に向けて投射光を発生可能な投射装置と、
    　前記投射装置によって発せられた投射光の方向を切り替え可能な投射方向切替装置とを有し、
    　前記投射方向切替装置が、
    　前記投射装置から入射された投射光を反射するミラーと、
    前記軸線周りの任意の位置において前記ミラーの前記軸線に対する傾斜を調整可能な姿勢調整装置とを備えていることを特徴とする画像映写機器。     A projection device capable of generating projection light through a projection lens in a predetermined axial direction;
    A projection direction switching device capable of switching the direction of the projection light emitted by the projection device;
    The projection direction switching device is
    A mirror that reflects the projection light incident from the projection device;
    An image projection apparatus comprising: an attitude adjustment device capable of adjusting an inclination of the mirror with respect to the axis at an arbitrary position around the axis.
  4. 　前記姿勢調整装置が、
    　前記ミラーを前記軸線周りに回動させる回転アクチュエータと、
    　前記ミラーの前記軸線に対する傾斜を変化させる傾斜アクチュエータとを備えていることを特徴とする請求項３に記載の画像映写機器。     The posture adjusting device is
    A rotary actuator for rotating the mirror about the axis;
    The image projection apparatus according to claim 3, further comprising a tilt actuator that changes a tilt of the mirror with respect to the axis.
  5. 　前記投射装置及び前記投射方向切替装置を動作制御可能な制御装置を備えており、
    　前記制御装置が、
    　前記投射方向切替装置により調整された前記ミラーの姿勢に基づき、前記投射装置により出力される画像の調整を行わせるための画像調整信号を出力可能であることを特徴とする請求項３又は４に記載の画像映写機器。     A control device capable of controlling the operation of the projection device and the projection direction switching device;
    The control device is
    5. The image adjustment signal for adjusting the image output by the projection device can be output based on the attitude of the mirror adjusted by the projection direction switching device. The image projection equipment described.
  6. 　前記投射装置を動作制御可能な制御装置を備えており、
    　前記制御装置が、
    　投影対象物と前記投射装置との位置関係に基づいて、前記投射装置により出力される画像の調整を行わせるための画像調整信号を出力可能であることを特徴とする請求項３～５のいずれかに記載の画像映写機器。     A control device capable of controlling the operation of the projection device;
    The control device is
    6. The image adjustment signal for adjusting an image output by the projection device can be output based on a positional relationship between the projection target and the projection device. The image projection equipment described in Crab.
  7. 　人体の挙動を検知可能な挙動検知装置を有し、
    　前記制御装置が、
    　前記挙動検知装置による検知情報に基づき、前記投射方向切替装置による前記ミラーの姿勢調整を行わせるための姿勢調整出力信号を出力可能であることを特徴とする請求項５に記載の画像映写機器。     It has a behavior detection device that can detect the behavior of the human body,
    The control device is
    6. The image projection apparatus according to claim 5, wherein an attitude adjustment output signal for adjusting the attitude of the mirror by the projection direction switching device can be output based on detection information by the behavior detection device.
  8. 　人体の挙動を検知可能な挙動検知装置を有し、
    　前記挙動検知装置により前記投影レンズに対する人体の近接が検知されることを条件として、前記投射装置によって発せられた投射光の進行が、前記ミラーにより遮断されることを特徴とする請求項３～７のいずれかに記載の画像映写機器。     It has a behavior detection device that can detect the behavior of the human body,
    The projection light emitted from the projection device is blocked by the mirror on condition that the behavior detection device detects the proximity of a human body to the projection lens. An image projection device according to any of the above.
  9. 　前記制御装置が、
    　前記投射装置により投射される画像の変化情報を予め把握可能であり、
    　前記変化情報に基づき、前記投射方向切替装置による前記ミラーの姿勢調整を行わせるための姿勢調整信号を出力可能であることを特徴とする請求項５～８のいずれかに記載の画像映写機器。     The control device is
    It is possible to grasp in advance the change information of the image projected by the projection device,
    9. The image projection apparatus according to claim 5, wherein an attitude adjustment signal for adjusting the attitude of the mirror by the projection direction switching device can be output based on the change information.
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