JP2013050542A - Projector device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a projector device capable of changing a projection position of a projection image according to a posture of a viewer.SOLUTION: A projector device includes: a projecting part (2) for projecting an image of a screen (E61) shape; a housing (1) supporting the projecting part (2) so as to rotate about a first axis (CLv); and a pedestal part (3a) supporting the housing (1) so as to rotate about a second axis (CLh). In the projecting part (2), when an optical axis (CL) of the projecting part (2) is positioned in a parallel direction with a bottom surface of the pedestal part (3a) and has a posture for raising and projecting an image of a screen shape, the first axis (CLv) is positioned in parallel with a vertical direction of a screen (E61), and the housing is rotated about the first axis (CLv) to move the screen (E61) in a horizontal direction. The second axis (CLh) is positioned in parallel with the horizontal direction of the screen (E61), and the housing is rotated about the second axis (CLh) to move the screen in the vertical direction.

Description

  The present invention relates to a projector apparatus, and more particularly, to a projector apparatus that can change the projection direction of an image and is suitable for an application that is installed indoors and is selectively projected onto a wall or ceiling for viewing.

Projector devices are installed in a wide space such as a living room or a hall, and have been used for the purpose of projecting images on a large screen onto a screen arranged at a predetermined position for viewing with a large number of people. .
In recent years, as projectors have become smaller and more portable, projector devices can be installed in relatively small rooms such as private rooms, and images can be projected on the walls and ceilings of the room and viewed by individuals or small groups. The use of “doing” is also spreading. This use is also referred to as “private use” for convenience.
Projector devices that can be used for private purposes, and can be changed in the projection direction so that images can be selectively projected onto the walls and ceiling of the room without changing the orientation of the main unit after installation in the room. There is.
As an example of a projector apparatus that can change the projection direction of an image, there is a projector described in Patent Document 1.

As shown in FIG. 11A, the projector P described in Patent Document 1 includes a projection unit P1 that projects an image and a support unit P2 that supports the projection unit P1.
Furthermore, the support part P2 has a projection part P1 as a projection elevation angle, and supports the first support part P2a, which is rotatably movable in the range of 0 ° to 90 ° in the vertical direction around the horizontal axis Ch, the projection part P1, and the first support. The second support portion P2b is configured to support the portion P2a so as to be rotatable and movable in the range of 0 ° to 360 ° in the horizontal direction around the vertical axis Cv.

Japanese Patent Laid-Open No. 2004-77545

A typical usage pattern of the projector device for private use will be described in a room usage example.
FIGS. 11B and 11C are perspective views for explaining a general fixture arrangement in the room R101. In these drawings, for convenience, each direction is defined as a left-right direction, a front-rear direction, and a vertical direction. For convenience of drawing, a part of the front wall WL1 and the ceiling CE and a right-side wall in the room R101 are shown. Is omitted. Further, the video projected on the wall or ceiling may be either a moving image or a still image, and an upright video has a longitudinal direction in the left-right direction of the screen, for example, an aspect ratio of 16: 9. Hereinafter, the “screen” indicates a projected image when an image is projected onto a projection target.

The room R101 includes a bed 101 and a side table 102 installed on the side of the bed 101.
The bed 101 is installed at one of the four corners of the room R101 so that the head of the viewer K is on the wall WL1 side when sleeping.
When viewing a projected image in the room R101, a room user (hereinafter referred to as a viewer) K raises his / her upper body on the bed 101 and places his back against the wall WL1 [first posture: FIG. 11 (b)] and a posture of lying on the bed 101 (second posture: see FIG. 11 (c)), if the image can be viewed in a relaxed state for a long time. Therefore, it is preferable.
Accordingly, the image is projected as the screen E1 on the wall WL2 facing the wall WL1 and facing the viewer K in the first posture as the screen E1, and projected as the screen E2 on the ceiling CE facing the viewer K in the second posture. It is good to be done.
Since the projector P selectively projects an image on the wall WL2 and the ceiling CE, it is desirable that the projector elevation angle can be changed.
The projector P described in Patent Document 1 can be used for this private purpose because the projection elevation angle can be changed in the range of 0 ° to 90 ° by the first support portion P2a.

The projector P is installed at a position as far as possible from both the wall WL2 and the ceiling CE so that an image can be projected on a screen as large as possible and the viewer can view the projected screen from as far as possible. It is preferable to be in the vicinity of the viewer.
In this case, it is first considered that the bed 101 has a ledge on the headboard 101a and the projector P is disposed on the ledge.
However, this arrangement position is not preferable because the projector P is positioned in the immediate vicinity of the viewer K, and the viewer K is highly likely to feel uncomfortable the heat generated from the projector P and the sound of the fan.
Accordingly, in the room R101, it is preferable that the side table 102 is disposed at a position close to the side wall WL1 next to the bed 101 and the projector P is placed on the side table 102.

When the viewer K is in the first posture, it is desirable that the screen E1 projected on the wall WL2 is positioned in front of the viewer K on the bed 101 as much as possible.
Specifically, in a range where the screen E1 does not protrude from the wall WL2, the intersection line LN1 between the vertical plane (surface including the up and down and front and rear directions) passing through the center of the width direction of the bed 101 and the wall WL2 is the horizontal direction of the screen E1. It is desirable to be as close as possible to the center.
For that purpose, the projection part P1 of the projector P may be rotated to the left around the vertical axis Cv by the second support part P2b, and the position of the projected screen E1 may be moved in the direction of the arrow DR1.
Here, a trapezoidal distortion occurs in the screen E1 projected on the wall WL1, and this trapezoidal distortion can be corrected by a known electrical correction process.

When the posture of the viewer K shifts from the first posture to the second posture, the projection position of the video is shifted from the wall WL2 to the ceiling CE.
Since the projector P can rotate the projection unit P1 in the vertical direction by the first support unit P2a, the projector P1 can be rotated upward to project an image on the ceiling CE as the screen E2.
However, as shown in FIG. 11C, the projector P can only move the screen E2 along an intersection line LN2 between the surface including the vertical axis Cv and perpendicular to the horizontal axis Ch and the ceiling CE.
Therefore, when the projector P rotates the projection unit P1 as it is from the state in which the screen E1 is projected on the wall WL2 in the state shown in FIG. 11B, the screen E2 projected on the ceiling CE is It is located directly above the projector P, not directly above the viewer K's head.
In addition, the screen E2 projected on the ceiling CE is such that the longitudinal direction of the screen is inclined with respect to the left-right direction. Therefore, the projected screen E2 is not suitable for viewing.

It is not impossible for the projector P to position the screen E2 directly above the viewer K. The plane of the projection unit P1 including the vertical axis Cv and perpendicular to the horizontal axis Ch is set by the second support unit P2b. It implement | achieves by rotating to the position which passes a head, and rotating the projection part P1 upwards by the 1st support part P2a in the position.
However, in this case as well, the screen E2 projected on the ceiling CE is substantially incapable of being viewed by the viewer K in the first posture because the longitudinal direction thereof is largely inclined from the left-right direction to the front-rear direction. .

Thus, if the projected screen is not in front of the viewer K and the longitudinal direction of the screen is tilted with respect to the left-right direction, the viewer can relax and appreciate the image on the bed. I can't.
That is, when appreciating a projected image projected on a wall or ceiling in a room equipped with a bed, the first posture sitting with the back against the wall on the bed and the second lying on the bed It is desirable to project a screen that is not tilted directly in front of the viewer in each posture.

  Therefore, the problem to be solved by the present invention is to provide a projector device that can change the projection position of the projected video according to the posture of the viewer.

In order to solve the above problems, the present invention has the following configuration.
1) Projection unit (2) that projects the image of the screen (E61) shape,
A housing (1) that supports the projection unit (2) so as to be rotatable about a first axis (CLv);
A pedestal (3a) that supports the casing (1) so as to be rotatable about a second axis (CLh),
The projection unit (2) projects the image of the screen shape upright while the optical axis (CL) of the projection unit (2) is positioned in parallel with the bottom surface of the pedestal unit (3a). When the posture is set, the first axis (CLv) is positioned in parallel with the vertical direction of the screen (E61), and the screen is rotated by rotating the casing around the first axis (CLv). E61) is movable in the horizontal direction, the second axis (CLh) is positioned parallel to the horizontal direction of the screen (E61), and the casing is rotated about the second axis (CLh). Accordingly, the projector device (51) is characterized in that the screen can be moved in the vertical direction.
2) A projection unit (2) that projects a screen-shaped image onto a projection target (WL2, CE), a casing (1) that houses the projection unit (2), and a pedestal that supports the casing (1) A projector device having a section (3a),
When the projection unit (2) is in a posture in which the optical axis (CL) is positioned in a direction parallel to the bottom surface of the pedestal unit (2) and projects the image upright, the screen ( A support structure (SJ) that supports the basic projection posture with the longitudinal direction of E61) as a reference direction;
The support structure (SJ) is configured to project the projection posture of the projection unit (2).
The basic projection posture can be changed to the first projection posture which is the first position (P1) horizontally moved leftward or rightward with the position of the projected screen (E61) being the reference direction. The second position above the first position is the position of the screen (E61) projected from the first projection posture to the first position (P1) with the longitudinal direction as a reference direction. The projector device (51) is characterized in that it can be changed to the second projection posture at the position (P2).
3) a first drive unit (AC1) that rotates the projection unit (2) about the first axis (CLv);
A second drive unit (AC2) for rotating the casing (1) about the second axis (CLh);
A control unit (SG) for controlling the operation of the first and second drive units (AC1, AC2);
A projector device (51) according to 1), comprising:

  According to the present invention, it is possible to change the projection position of the projected video according to the posture of the viewer.

1 is an external perspective view for explaining an embodiment of a projector apparatus of the present invention. FIG. 2 is a longitudinal sectional view in which only a housing is sectioned for explaining an internal structure in an embodiment of the projector apparatus of the present invention. FIG. 3 is a cross-sectional view in which only the housing is shown in cross section for explaining the internal structure in the embodiment of the projector apparatus of the present invention. It is a perspective view inside a room for demonstrating the 1st use condition in the Example of the projector apparatus of this invention. It is a planar view sketch for demonstrating the 1st use condition in the Example of the projector apparatus of this invention. It is a side view sketch for demonstrating the 1st use condition in the Example of the projector apparatus of this invention. It is a perspective view inside a room for demonstrating the 2nd use condition in the Example of the projector apparatus of this invention. It is a planar view sketch for demonstrating the 2nd use condition in the Example of the projector apparatus of this invention. It is a side view sketch for demonstrating the 2nd use condition in the Example of the projector apparatus of this invention. It is an external appearance perspective view for demonstrating the modification in the Example of the projector apparatus of this invention. It is a figure for demonstrating the conventional projector apparatus.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to FIGS.

First, a projector device 51 which is an embodiment of the projector device of the present invention will be described in detail with reference to FIGS.
FIG. 1 is an external perspective view showing a projector device 51 which is an embodiment of the projector device of the present invention. FIG. 2 is a vertical cross-sectional view at the S2-S2 position in FIG. 1, and is a view in which only the housing 1 is cut away in order to explain the optical engine unit 2 housed in the housing 1. FIG. 3 is a cross-sectional view taken along the S3-S3 position in FIG. 1 and is a view in which only the housing 1 is cut to explain the optical engine unit 2. FIG.
For easy understanding, as shown in FIG. 1, the vertical direction, the front-rear direction, and the left-right direction are defined for the projector device 51 for convenience.

The projector device 51 includes a housing 1, an optical engine unit 2 housed in the housing 1, and a support unit 3 that supports the housing 1.
The housing 1 is generally formed in a hexahedral box shape. The housing 1 has an opening 1a that opens horizontally from the front wall 1M to the left side wall 1S1 and the right side wall 1S2.
From the opening 1a, the projection lens 2a of the optical engine unit 2 housed inside can be faced.

As shown in FIG. 2, the optical engine unit 2 includes a base unit 2k, a solid light source 2b, a heat sink 2c that is fixed in contact with the solid light source 2b and emits heat generated by the solid light source 2b, and a solid light source 2b. A folding mirror 2d that reflects the emitted video light LT, a folding mirror 2e that reflects the light reflected by the folding mirror 2d, a transmissive spatial modulation element 2f that receives the light reflected by the folding mirror 2e, and a projection lens 2a are provided. And a projection lens group 2g that projects the image light that has passed through the transmissive spatial modulation element 2f to the outside.
The heat sink 2c, the folding mirrors 2d and 2e, and the transmissive spatial modulation element 2f are connected to the base portion 2k by a holding member (not shown). The base unit 2k is provided with a control unit SG that electrically controls the overall operation of the projector device 51.

The base portion 2k has a shaft portion 2h1 extending upward and a shaft portion 2h2 extending downward on a rotation axis CLv that is in the vertical direction when the projector device 51 is used. The rotation axis CLv and the optical axis CL of the projection lens group 2g are orthogonal to each other.
The housing 1 has holes 1Ta and 1Ba in the upper wall 1T and the lower wall 1B, respectively. The shaft parts 2h1 and 2h2 in the optical engine part 2 are inserted through the holes 1Ta and 1Ba, respectively.
On the inner surface of the upper wall 1T of the housing 1, there is provided a drive unit AC1 that engages with the shaft portion 2h1 and rotates the shaft portion 2h1 about the rotation axis CLv.
That is, the optical engine unit 2 is rotated about the rotation axis CLv with respect to the housing 1 by the drive unit AC1.
The drive unit AC1 rotates the shaft part 2h1 about the axis line CLv with a rotation direction and a rotation angle according to an instruction from the control unit SG or an instruction from the outside.
The shape and size of the opening 1a are set so that an image can be projected to the outside from the projection lens 2a within the rotation angle range of the optical engine unit 2 that can be rotated by the drive unit AC1. When the angle CLv is perpendicular to the pedestal 3a shown in FIG. 1 is 0 °, the angle range in which the optical engine unit 2 can rotate about the axis CLv is, for example, ± 45 °.
Further, the optical engine unit 2 can be held at an arbitrary position within a rotatable angular range by the drive unit AC1.

As shown in FIG. 3, the support portion 3 includes a pedestal portion 3 a and a pair of support column portions 3 b 1 and 3 b 2. The pair of support columns 3b1 and 3b2 are separated from each other by a predetermined distance, and are erected vertically to the pedestal 3a.
The casing 1 in a state where the optical engine unit 2 is accommodated is supported by the side walls 1S1 and 1S2 on the tip side opposite to the pedestal portion 3a of the support columns 3b1 and 3b2, and the pedestal portion is used in the use posture of the projector device 51. Support members 3c that rotatably support the housing 1 are provided around a rotation axis CLh that is horizontal to the bottom surface of 3a. A gear portion 3cg is integrally attached to the support member 3c.
Inside the one side wall (here, the left side wall 1S1) of the housing 1, there is provided a drive unit AC2 that meshes with the gear portion 3cg and rotates the housing 1 around the rotation axis CLh.
That is, the housing 1 is rotated around the rotation axis CLh with respect to the support columns 3b1 and 3b2 by the drive unit AC2.

The position of the rotation axis CLh is set to a position orthogonal to the optical axis CL of the projection lens group 2g. The rotation axis CLh and the optical axis CL may be set so as to intersect and be orthogonal to each other.
Further, the position of the rotation axis CLh is set to a position orthogonal to the rotation axis CLv. The rotation axis CLh and the rotation axis CLv may be set so as to intersect.
The drive unit AC2 rotates the casing 1 about the rotation axis CLh with a rotation direction and a rotation angle according to an instruction from the control unit SG or the outside.
The shapes and dimensions of the housing 1 and the support portion 3 are set so that the pedestal portion 3a and the housing 1 do not interfere with each other in the rotation angle range of the housing 1 that can be rotated by the drive unit AC2. . The angle range in which the housing 1 can be rotated about the rotation axis CLh is, for example, 0 ° to 90 ° if the optical axis CL is 0 ° and the upward angle is a positive angle.
Further, the housing 1 can be held at an arbitrary position within a rotatable angle range by the driving unit AC2.
The pedestal portion 3a is placed on a horizontal plane, and the optical axis CL is horizontal with respect to the bottom surface of the pedestal portion 3a and is orthogonal to both the rotation axis CLh and the rotation axis CLv. The projector device 51 is referred to as a “reference posture”, the optical engine unit 2 is referred to as a “reference position”, and the direction of the rotation axis CLh is referred to as a “reference direction”. In addition, when the projector device 51 is in the reference posture and projects a screen-shaped image upright in this state, the rotation axis CLv is positioned parallel to the vertical direction of the screen, and the rotation axis CLh is the screen. Located parallel to the horizontal direction.

Next, an example in which the projector device 51 described above is used for private use will be described with reference to FIGS. Specifically, it is an example used in the room R1.
4 and 7 are perspective views of the room R1, and FIGS. 5 and 8 are sketches of the room R1. 6 is an arrow view of the YS1-YS1 position in FIG. 5, and FIG. 9 is an arrow view of the YS2-YS2 position in FIG.
The furniture arrangement of the room R1 shown in FIGS. 4 to 9 is the same as the furniture arrangement of the room R101 shown in FIG. In these drawings, for convenience, each direction is defined as a left-right direction, a front-rear direction, and a vertical direction. In FIGS. 4 and 7, for convenience of drawing, one of the front wall WL1 and the ceiling CE in the room R1. The part and the right wall are omitted. Further, the projected image is erected with the horizontal direction of the screen as the longitudinal direction, and has an aspect ratio of 16: 9, for example.

4 and 7, the room R1 includes a bed 61 and a side table 62 arranged on the side of the bed 61. A sofa 64 is placed on the opposite side of the bed 61 with the side table 62 interposed therebetween.
On the side table 62, the projector device 51 of the embodiment is installed in a posture in which the rotation axis CLh is the left-right direction.

First, referring to FIGS. 4 to 6, the viewer K faces the wall WL <b> 1 in a state where the upper body is raised on the bed 61 and the back is put on the front wall WL <b> 1 (first posture). A case where the screen E61 projected from the projector device 51 is viewed on the wall WL2 to be viewed will be described. The screen E61 is a screen in which, for example, the length is upright in the horizontal direction.
The projected screen E61 is preferably located in front of the viewer K on the wall WL2. Therefore, the optical engine unit 2 of the projector device 51 is rotated counterclockwise around the rotation axis line CLv (as viewed from above) with respect to the housing 1, and an intersection P1 between the optical axis CL and the wall WL2 is set. Located in front of the viewer K.
As shown in FIG. 5, assuming that the position of the optical axis CL in the reference posture of the projector device 51 is CLrf, the optical engine unit 2 is placed in front of the viewer K taking the first posture in order to position the screen E61. , Turn counterclockwise by an angle θa.
Here, for easy understanding, the position of the optical axis CL is determined when the optical engine unit 2 is rotated about the rotation axis CLv while maintaining the horizontal of the optical axis CL from the reference posture of the projector device 51. In addition, it is assumed that the vertical position (height) of the screen E61 is set in front of the face of the viewer K who takes the first posture (see FIG. 6).

  The screen E61 generates a trapezoidal distortion, which can be corrected by a known electrical process. For example, a trapezoidal distortion correction unit that electrically corrects the trapezoidal distortion according to the rotation angle of the optical engine unit 2 may be mounted on the control unit SG.

Next, a case where the posture of the viewer K is changed from the first posture to the posture on the bed 61 (second posture) will be described with reference to FIGS.
When the viewer K is in the second posture, it is preferable that the image is projected as much as possible on the ceiling CE immediately above the face of the viewer K who is supine. This is because the housing 1 of the projector device 51 is moved from the state corresponding to the first posture (the state shown in FIG. 7) to the optical axis CL with respect to the bottom surface of the pedestal portion 3a as it is around the rotation axis CLh. This is realized by rotating upward from a horizontal position to a position that is substantially vertical.
That is, as shown in FIG. 9, the casing 1 is rotated from the reference position toward the ceiling. Specifically, the optical axis CL is rotated by an angle θb from the position CLrf in the reference posture. The angle θb is 90 °, for example.

If the position of the screen E62 projected on the ceiling CE is shifted in the left-right direction with respect to the position just above the face of the viewer K after the rotation of the angle θb of the housing 1, the optical engine unit 2 is moved to the rotation axis CLv. Rotate in either the left or right direction. Thereby, since the position of the screen E62 moves in the left-right direction, the screen E62 can be positioned immediately above the face.
In the projector device 62, the rotation axis CLh is always positioned along the left-right direction, and the rotation axis CLh does not tilt with the rotation of the optical engine unit 2 around the rotation axis CLv.
Therefore, although the screen E62 projected on the wall WL2 and the ceiling CE may cause a trapezoidal distortion, the longitudinal (left-right) direction of the screen is not inclined with respect to the horizontal direction, and the longitudinal direction is positioned in the horizontal direction. For the person K.

Assuming that the intersection point between the optical axis CL and the ceiling CE on the screen E62 projected on the ceiling CE is the intersection point P2, the trajectory of the intersection point from the intersection point P1 to the intersection point P2 on the screen E61 is linear on each of the wall WL2 and the ceiling CE. It becomes.
If the horizontal position of the face of the viewer K on the bed 61 is not changed between the first posture and the second posture, it is desirable that the screen E61 and the screen E62 are located in front of the face. The horizontal position of the intersection point P1 on the screen E61 and the horizontal position of the intersection point P2 on the screen E62 may coincide with each other with high accuracy.
The horizontal positions of the intersection point P1 and the intersection point P2 are indicated by a distance from the left wall WL3, for example. That is, the intersection point P1 is the distance LP1, and the intersection point P2 is the distance LP2.

  The ratio between the distance LP1 and the distance LP2 is based on the ratio between the distance from the projection lens 2a to the wall WL2 and the distance from the projection lens 2a to the ceiling CE, and the reference posture of the housing 1 in the state where the screen E62 is projected. Depends on the upward rotation angle.

On the other hand, as shown in FIG. 5, the projector device 51 rotates the housing 1 even when the viewer K2 sits on the sofa 64 provided on the opposite side of the bed 61 with the side table 62 interposed therebetween. By rotating the image around the axis CLv in the clockwise direction, the image can be projected upright in front of the viewer K2 sitting on the sofa 64.
Specifically, as shown in FIG. 5, in order to position the screen E <b> 63 in front of the viewer K <b> 2 sitting on the sofa 64, the optical engine unit 2 with respect to the position CLrf of the optical axis CL in the reference posture of the projector device 51. Is rotated clockwise by an angle θc.

<Modification>
Next, a projector device 51A, which is a modification of the projector device 51, will be described with reference to FIG. FIG. 10 is an external perspective view showing projector device 51A.

The projector device 51A includes a housing 1A, an optical engine unit 2 housed integrally with the housing 1A inside the housing 1A, and a support unit 3A that supports the housing 1A. The optical engine unit 2 has the same structure as that housed in the housing 1 of the projector device 51 except that it is integrated with the housing 1A.
The housing 1A is formed in a generally hexahedral box shape. An opening 1Aa is formed in the front wall 1AM, and the optical engine unit 2 is stored in the housing 1A so that the projection lens 2a is exposed in the opening 1Aa.

  In the housing 1A, the shaft portion 2h1 and the shaft portion 2h2 of the optical engine portion 2 protrude from the upper wall 1AT and the lower wall 1AB. The shaft portion 2h1 and the shaft portion 2h2 are on the rotation axis CLv, and the rotation axis CLv and the optical axis CL of the projection lens group 2g are orthogonal to each other.

The support portion 3A includes a pedestal portion 3Aa, a pair of column portions 3Ab1 and 3Ab2 erected at a predetermined distance from the pedestal portion 3Aa, and a frame-shaped frame portion 3Ac connected to the distal ends of the column portions 3Ab1 and 3Ab2. And is configured.
The frame portion 3Ac is formed in a substantially rectangular shape from a pair of horizontal frame portions 33a, 33b facing each other and a pair of vertical frame portions 33c, 33d facing each other, and at a substantially central portion of the vertical frame portions 33c, 33d, The support member 34 is supported so as to be rotatable around the rotation axis CLh with respect to the column portions 3Ab1 and 3Ab2.
Further, holes 33a1 and 33b1 are provided in the center of the horizontal frame portions 33a and 33b (only 33b1 is shown). The housing 1A is supported so as to be rotatable about the rotation axis CLv with respect to the frame 3Ac by inserting the shaft portion 2h1 into the hole 33a1 and inserting the shaft portion 2h2 into the hole 33b1.
The housing 1A is rotated about the rotation axis CLh with respect to the support 3A by a drive unit AC3 (not shown), and is rotated about the rotation axis CLv with respect to the support 3A by a drive unit AC4 (not shown). It has become so.

The rotation angle range around the rotation axis CLh of the housing 1A is, for example, from 0 ° at which the optical axis CL is in the horizontal position to 90 ° at which the projection lens 2a is in the vertical position facing upward. Further, the rotation angle range around the rotation axis CLv is, for example, ± 45 °, where the position where the optical axis CL is orthogonal to the rotation axis CLh is 0 °.
The operations of the drive units AC3 and AC4 are controlled by the control unit SG in the same manner as the drive units AC1 and AC2. The projector device 51 </ b> A of this modification has the same effect as the projector device 51.

Since the intersection points P1 and P2 are at the center positions of the screens E61 and E62, there is no problem even if the positions of the intersection points P1 and P2 are the positions of the screens E61 and E62 for convenience.
According to the above-described embodiment and the projector devices 51 and 51A that are the modified examples thereof, the first posture on the wall WL2 in a state where the optical engine unit 2 is rotated by a predetermined amount around the rotation axis CLv from the reference position. The projected screen E61 can be positioned at a position directly in front of the viewer K.
When the posture of the viewer K is shifted from the first posture to the second posture, the screen E62 can be projected onto the ceiling CE by rotating the casings 1 and 1A around the rotation axis CLh. E62 can be positioned substantially above the viewer K in the second posture.
In this state, when the screen E62 is not located immediately above the viewer K, the optical engine unit 2 is further rotated around the rotation axis CLv, so that the screen E62 is displayed on the face of the viewer K on the ceiling CE. It can be accurately positioned directly above.
Accordingly, the screens E61 and E62 projected directly in front of the face of the viewer K can be positioned when the viewer K takes either the first posture or the second posture on the bed 61. The viewer K can appreciate the projected video in a relaxed state.
In addition, since the longitudinal directions of the screens E61 and E62 do not tilt with respect to the horizontal direction, the viewer K can view the video in a more relaxed state on the bed 61.
In addition, the projector devices 51 and 51A have an arbitrary position in the rotation angle range around the rotation axis CLv of the optical engine unit 2 and an arbitrary position in the rotation angle range around the rotation axis CLh of the housing 1 and 1A. Video can be projected in any direction that combines
When the image is projected onto the wall WL2 or the ceiling CE, the position of the projected screen can be set substantially in front of the viewer K on the bed 61.

Further, in the projector devices 51 and 51A according to the above-described embodiments and modifications, the screen shape of the projected image has a long length, for example, a rectangle, and the image is projected onto the wall WL2 and the ceiling CE that are the projection target. And an optical engine unit 2 that is a projection unit.
The optical engine unit 2 can take the “basic position” which is a basic projection posture in which the optical axis CL is positioned in the horizontal direction and the length of the screen projected on the wall WL2 as the projection target is in the horizontal direction. The support structure SJ supports the optical engine unit 2 and the housing 1. That is, the support structure portion SJ corresponds to the shaft portions 2h1 and 2h2, the holes 1Ta and 1Ba for supporting them, the support members 3c and 34, and the support portions 3 and 3A.
The support structure SJ has a first projection position P1 obtained by horizontally moving the projection posture of the optical engine unit 2 from the basic projection posture to the left or right while keeping the position of the projected screen E61 in the horizontal direction. The position of the screen E61 projected from the first projection attitude to the first position P1 can be changed to the first projection attitude, and the upper side of the first position is the longitudinal direction. It is possible to change the second projection posture to be the second position P2 on the ceiling CE.

It goes without saying that the embodiment of the present invention and its modifications are not limited to the above-described configuration, and may be other modifications without departing from the gist of the present invention.
The housing 1 and the support portion 3 may be separable from each other or the housing 1A and the support portion 3A. Thereby, the housing | casing 1 and housing | casing 1A can be exchanged for the thing of another specification, and the support parts 3 and 3A can be shared.
The rotation angle around the rotation axes CLv and CLh is not limited to the above-described range.
For example, an image processing unit that reverses the image vertically by setting the rotation angle around the rotation axis CLh to 0 ° to 180 ° may be provided.
Thus, the projector devices 51 and 51A may be arranged near the center of the room so that an image can be projected on the three surfaces of the ceiling and the pair of walls facing each other. This is effective when the projector devices 51 and 51A are used in a room having a certain size.
The rotation of the optical engine unit 2 and the casings 1 and 1A and the holding at the predetermined angular positions are not limited to those performed by the driving units AC1 to AC4. A structure that is provided manually without providing the driving units AC1 to AC4 may be used. In this case, the holding at the predetermined angular position may be a structure using a rotational frictional force obtained using a wave washer or the like.
The above-described embodiments and modifications thereof cannot be used only for rooms.
In a relatively small space, it can be freely used for viewing an image with an individual or a small number of people.

1, 1A Housing 1B Lower wall, 1Ba hole, 1M, 1AM Front wall 1S1 Left side wall, 1S2 Right side wall, 1T Upper wall, 1Ta hole 1a, 1Aa Opening part 2 Optical engine part 2a Projection lens, 2b Solid light source, 2c Heat sink 2d, 2e Folding mirror, 2f Transmission type spatial modulation element 2g Projection lens group, 2h1, 2h2 Shaft part 3, 3A support part, 3a, 3Aa pedestal part, 3c support member, 3cg gears 3b1, 3b2, 3Ab1, 3Ab2 Prop part 3Ac Frame part 33a, 33b Horizontal frame part, 33a1, 33b1 hole, 33c, 33d Vertical frame part 34 Support member 51, 51A Projector device 61 Bed, 62 Side table, 64 Sofa AC1 to AC4 Drive part CE Ceiling, CL Optical axis CLh ( Horizontal axis of rotation, CLv (vertical axis of rotation) E61 to E63 Screens K and K2 Appreciation KS (intersection) locus LT image light, P1, P2 intersection, R1 room SG controller, SJ support structure WL1~WL3 wall θa~θc angle

Claims (3)

A projection unit that projects a screen-shaped image;
A housing that supports the projection unit so as to be rotatable about a first axis;
A pedestal that supports the casing so as to be rotatable about a second axis, and a projector device comprising:
When the projection unit is in a posture in which the optical axis of the projection unit is positioned in a direction parallel to the bottom surface of the pedestal unit and the image is projected upright, the first axis is a vertical screen The screen is movable in the horizontal direction by rotating the housing around the first axis, the second axis is positioned in parallel with the horizontal direction of the screen, A projector apparatus, wherein the screen is movable in a vertical direction by rotating the casing around the second axis. A projector device having a projection unit that projects a screen-shaped image onto a projection body, a casing that houses the projection unit, and a pedestal unit that supports the casing,
Basic projection with the longitudinal direction of the screen as a reference direction when the projection unit is positioned so that its optical axis is parallel to the bottom surface of the pedestal unit and the image is projected upright Provided with a support structure that supports the posture,
The support structure unit has a projection posture of the projection unit,
The basic projection attitude can be changed to a first projection attitude that is a first position horizontally moved leftward or rightward with the position of the projected screen as the reference direction, and the first The position of the screen projected on the first position can be changed from the first projection attitude to the second projection attitude that is the second position above the first position while keeping the reference direction. A projector device characterized by that. A first drive unit for rotating the projection unit around the first axis;
A second drive section for rotating the housing around the second axis;
A control unit for controlling operations of the first and second driving units;
The projector device according to claim 1, further comprising:

Images