JP2001183739A - Projector device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adjust the attitude of a projector unit independently or synthetically in the vertical direction, the horizontal direction, and the inclination direction, to perform adjustment of the state of a screen and enlargement or reduction of a picture, and to easily perform such adjustment work by a remote control. SOLUTION: This device is comprised of a swinging base 3 which can be inclined in an arbitrary position or is vertically moved in parallel by first to third height adjustment mechanisms 151 to 153, a base stand 1 which supports the swinging base so that it can be moved in the longitudinal direction, and a rotating base 2 which rotates the swinging base with an arbitrary position on the base stand as the fulcrum. The distortion of a picture can be adjusted in a single direction by first to third height adjustment handles 14a, 14b, and 14c which bias the bases in one direction independently of moving or rotatable directions, a longitudinal adjustment handle 15, and a rotation adjustment handle 16. The handles are driven by the motor of an adjustment unit 300, and this motor is remotely controlled.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a projector for projecting an image to obtain an enlarged image.

[0002]

2. Description of the Related Art An image obtained by receiving a television signal or an output image output from a computer is projected,
2. Description of the Related Art Projector devices that provide an enlarged image on a screen are widely used.

In this type of projector, a DMD (Micro Mirror Device) or an LCD is used as an image source.
(Liquid crystal display device) is used.

[0004] In addition to the use of a single projector device, a plurality of projector devices can be stacked vertically and horizontally and used as a multi-screen display.

[0005]

In the above-described projector device, it is necessary to correct the distortion and the magnification of the image while viewing the projected image.

Incidentally, in many projector devices, the structure for adjusting the distortion and magnification of an image is insufficient, and even in a projector device provided with an adjusting mechanism, a cover is removed or adjustment using a tool is performed. Is required, and much time is required for the adjustment work.

An object of the present invention is to provide a projector device which can adjust the distortion and magnification of a projected image in a short time without using a tool, and which can be adjusted by remote control.

[0008]

SUMMARY OF THE INVENTION The present invention has been made on the basis of the above-mentioned problems. In a projector apparatus having a position adjusting mechanism for supporting a projector unit at a predetermined position, the position adjusting mechanism includes A first holding member for supporting the projector unit so as to be movable in a first direction; and a first holding member rotatably with respect to the first holding member in a plane parallel to the first holding member. A supported second holding member (2), and a plurality of height adjustment mechanisms supported by the second holding member so as to be movable in a second direction orthogonal to the first direction. (151-
153) Third holding member (3, 4) supported by
And the first, second and third holding members and the height adjusting mechanism are coupled to the first and second directions, the rotation direction, and the height direction by a predetermined amount. It has a movable mechanism for adjusting from a direction and an adjustment unit having a motor for controlling the rotation of the movable mechanism.

Thus, the vertical direction, the horizontal direction, the front-rear direction, and the inclination of the projector unit can be easily adjusted, and the distortion of the projected image can be easily corrected.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a schematic diagram illustrating an example of a projector device according to an embodiment of the present invention.

As shown in FIG. 1, the projector apparatus 100 has a projector unit 130 which is mounted in a cabinet 110 and projects an image on a screen 120 in front. Projector unit 13
The projection lens 140 is provided at the leading end of the zero.
Note that the cabinet 110 and the screen 120 are integrally formed, and the projector unit 130
Is mounted on the adjuster 150.

FIG. 2 is a schematic diagram illustrating the appearance of the adjuster 150.

The adjuster 150 supports the projector unit 130 so as to be movable and tiltable in an arbitrary direction. As described below with reference to FIGS. (Y axis) direction, front and rear (Z
An axial) direction and a rotational (indicated by W) direction, each of which can be independently moved or tilted.
Or the fourth movable mechanism is integrally formed. FIG. 2 shows three height adjustment handles 14a, 14b and 14c used for adjustment in the Y-axis direction, a front-rear adjustment handle 15 used for front-rear adjustment, and a rotation adjustment handle used for rotation adjustment. Only 16 are shown. That is, each of the height adjustment handles 14a, 14b and 14c, the front-rear adjustment handle 15 and the rotation adjustment handle 16 is positioned rearward (rear, that is, rear-front) with respect to the surface of the projector unit 130 on which the projection lens 140 is provided. All the adjustment operations are arranged collectively so that they can be adjusted from one direction.

FIGS. 3 to 5 show the regulator 15 shown in FIG.
FIG. 3 is a plan view, FIG. 4 is a side view of the adjuster 150 viewed from the direction of arrow C in FIG. 3, and FIG.
FIG. 4 is a front view of the adjuster 150 as viewed from the direction of arrow D in FIG. 3.

As shown in FIG. 3 to FIG.
50 is the projector unit 130 and the adjuster 1
It has a base 1 that supports 50 loads.

On the base table 1, a rotating base 2 for rotating the projector unit 130 and a swing base 3 for tilting the projector unit 130 in an arbitrary direction are arranged in a stacked state. The swing base 3 has
A thrust base 4 that allows the projector unit 130 to move in the left-right direction is provided integrally.

The rotary base 2 is held by a rotary shaft 5 near the center of the base 1 so as to be rotatable in any direction with respect to the base 1. Cabinet 1
In the space between the base 10 and the base 1, a front-rear direction moving mechanism 154 described later with reference to FIG. 8 is incorporated.

Two rotary bases are arranged in the horizontal direction on the side on which the adjustment handle group shown in FIG. 2 is provided, and one at the approximate center of the side where the projection lens 140 of the projector unit 130 is located. First to third height adjusters 151 to 153 supporting the swing base 3
Are fixed.

The swing base 3 is set at a predetermined position of height adjusters 151 to 153 formed on the respective bolts 6 as described below with reference to FIG. In addition, a portion of the bolt 6 protruding from the swing base 3 includes:
The spring 7 is mounted. Thereby, the swing base 3
Is always pushed down in the direction of the base 1.

FIG. 6 shows the regulator 15 shown in FIGS.
FIG. 6 (A) is a front view, FIG. 6 (B) is a sectional view of a worm wheel gear, and FIG. 6 (B) is a sectional view of a worm wheel gear. FIG. 6C is a plan view. The first to third
Since the height adjusters 151 to 153 have the same configuration, the first adjuster 151 will be described as a representative.

The height adjuster 151 includes a worm wheel gear 11 whose relative position with respect to the bolt 6 is changed by being rotated by the worm gear 10 fixed at a predetermined position on the rotating shaft 8. Gear 1 that is rotated by rotating the adjustment handle 14a connected to the worm gear 1
By the rotation of 0, the worm wheel gear 11 is moved up and down with respect to the base 1. That is, when the worm gear 10 is rotated clockwise or counterclockwise by rotating the adjustment handle 14a in an arbitrary direction, the worm wheel gear 11 is rotated, and the gear 11
Its position with respect to the bolt 6 is displaced. Thereby, the swing base 3 is moved up and down. In addition, as shown in FIG. 3, only the height adjuster 153 uses the rotating shafts 8 'having different lengths.

FIG. 7 is a schematic diagram for explaining the respective layer constitutions of the base 1 and the rotation base 2, the swing base 3 and the thrust base 4 of the adjuster 150.

As shown in FIG. 7, the base 1 is attached to a mount member 17 fixed to a predetermined position of the cabinet 110 so as to be movable in the Z-axis direction in the elongated hole 1a by a screw 1b. .

At the approximate center of the plane portion of the base 1, a screw portion 1 f for tightening a bolt (not shown) serving as a leg of the rotation shaft 5 provided on the rotation base 2 is provided on the side of the plane portion on which the adjustment handle is provided. A propulsion plate 1c that is combined with the screw portion of the rotating shaft 9 of the front-rear direction adjustment mechanism 154 is formed on the surface facing the cabinet 110 at the predetermined position. An end of the base 1 on the side where the adjustment handle group is located is bent to the opposite side to the cabinet 110 so that the opening 1e does not hinder the rotation of the rotation shaft 12 extending from the rotation adjustment handle 16. Are formed. The propulsion plate 1c is for moving the base 1 in the Z-axis direction by rotating a screw portion of the rotating shaft 9 inserted into a fixed piece 13 provided at a predetermined position of the cabinet 110.

At a predetermined position substantially at the center of the plane portion of the rotating base 2, an opening 2a through which the rotating shaft 5 fixed to the base 1 can be provided to provide the rotating shaft 5 is provided. At a predetermined position, there is provided a screw portion 21a on which a pin 21 (see FIG. 4) for supporting the load of the projector unit 130 is set, which is capable of rotating itself by a rotation adjustment mechanism 155 described later with reference to FIG. Each is formed. The pin 21 fixed to the screw portion 21a is
It is formed at a predetermined position of the base 1 and cooperates with a plurality of arc-shaped guide holes 1g for guiding the pins 21 so as to enable the rotation of the rotation base 2, thereby restricting the rotation of the rotation base 2.

The rotating base 2 also has a bent portion 22 and a bent portion 2 bent in a direction orthogonal to the plane portion.
There is provided a height adjuster support portion 22a which is further bent in a direction orthogonal to the second portion (with the bent portion 22).
The height adjuster support portion 22a is substantially parallel to the plane portion. Also, the bolt 6 is attached to the height adjuster support portion 22a.
Is formed, and the bolt 6 is fixed.

Height adjusters 151 to 1 are provided at predetermined positions on the rear surface (the surface on the rotation base 2 side) of the plane portion of the swing base 3.
By receiving the rotating shafts 8 and 8 ′ incorporated in the 53, the fixed pieces 31 that function each of the height adjusters 151 to 153 are formed.

A screw hole 3a for fixing a pin 43 (see FIG. 3) used for moving the thrust base 4 described below is formed at a predetermined position on the plane portion of the swing base 3. Note that two screw holes 3a are provided in the left-right direction on the side opposite to the side on which the adjustment handle group shown in FIG. 2 is provided (projection lens side), and one screw hole is provided substantially at the center of the side where the adjustment handle group is provided. Are arranged. In addition, swing base 3
An elongated hole 3b into which a pin 44 used for moving the thrust base 4 in the left-right direction is provided in the bent portion 32 orthogonal to the flat surface portion.

At a predetermined position of the plane portion of the thrust base 4, where the pin 43 fixed to the screw hole 3 a provided in the swing base 3 projects, a thrust relative to the pin 43 is provided. An elongated hole 4a for making the base 4 movable is provided with a bent portion 41 orthogonal to the same plane portion.
Is provided with a long hole 4b into which the pin 44 is inserted.

FIG. 8 is a schematic diagram for explaining the principle of moving the base 1 by the front-rear adjustment mechanism 154. As shown in FIG. 8, the rotating shaft 9 connected to the adjustment handle 15
Are screwed into respective screw portions of a propulsion plate 1 c provided on the base 1 and a block 13 fixed to the cabinet 110. Thus, the propulsion plate 1c is moved in the left-right direction in FIG. 8 (the Z-axis direction in FIG. 3) by rotating the adjustment handle 15 in an arbitrary direction.

FIG. 9 is a schematic diagram for explaining the principle that the rotation base 2 can be rotated by the rotation adjusting mechanism 155. FIG.
As shown in FIG. 5, the rotary shaft 12 connected to the adjustment handle 16 passes through an opening 1 e formed in the bent portion 1 d of the base 1, and a screw portion provided in the bent portion 22 of the rotary base 2. Screwed into 24. In addition,
A nut 25 for converting the amount of rotation of the rotating shaft 12 into rotation of the rotating base 2 is provided at the tip of the rotating shaft 12, and a spring 26 inserted between the rotating base 2 and the base 1. The amount of rotation of the rotating shaft 12 can be converted into rotation of the rotating base 2 by the nut 27 located on the adjustment handle 16 side of the base 1. Also, the rotating shaft 5
The rotation of the base 2 is guided by the pin 21 and the opening 1g of the base 1 which are located at the same distance from each other. In addition, in order to facilitate rotation of the rotation base 2, a configuration substantially similar to the nut 25, the spring 26, and the nut 27 is provided at a position (see FIG. 3) diagonal to a position where the rotation axis adjustment mechanism 155 is provided. The tension mechanism 155 ', that is, the bolt 28 with nut, the spring 26', and the nut 25 'are provided.

FIGS. 10 to 12 illustrate a procedure for adjusting the distortion and magnification of the image projected from the projector unit 130 by operating the adjuster 150 shown in FIGS. 1 to 9. , A plan view, FIG. 11 is a rear elevation view, and FIG. 12 is a side view as viewed from the direction of arrow D in FIG.

As is apparent from FIGS. 10 to 12, any or all of the height adjustment handles 14a to 14c or any two or all of the height adjustment handles 14a to 14c can be rotated left and right independently or in association with each other. The rotating shafts 8, 8 'connected to the corresponding handles are rotated, and the worm gear 10 fixed to the rotating shaft is rotated. Thereby, along the bolts 6 of the height adjusters 151 to 153,
The worm wheel gear 11 is moved up and down.

When the worm wheel gear 11 is moved up and down, the swing base 3, that is, the projector unit 130 is moved up and down with respect to the base 1 at an arbitrary position. Since the swing base 3 is always given a downward load from the spring 7, the projector unit 130 includes the handles 14a, 14b and 14c.
Are kept tilted by a predetermined amount corresponding to the amount of rotation.

In this case, only the height adjustment handle 14a and the handle 14c are rotated in opposite directions, so that the projector unit 130 can be inclined at an arbitrary angle in the left-right direction. By rotating only the handles 14a and 14c in the same direction, it is possible to adjust the vertical direction of the image in which the image projected from the projection lens 140 is tilted (the ratio of the magnification of the upper side to the lower side is different). . In addition, with respect to the tilt, only one of the handles 14a or 14c in the left-right direction may be rotated.

When the front-rear adjustment handle 15 is rotated, the rotation shaft 9 connected to the handle 15 is rotated, and the position of the propulsion plate 1 c of the front-rear adjustment mechanism 154 provided on the base 1 is set with respect to the fixed piece 13. Are relatively changed. That is, since the projector unit 130 is moved in the front-back direction, the magnification of the image projected on the screen 120 can be changed.

When the rotation adjustment handle 16 is rotated, the rotation shaft 12 connected to the handle 16 is rotated, and the rotation of the nut 25 (25 ') and the nut 27 (27') of the rotation adjustment mechanism 155 (155 '). The spacing between the rotating bases 2, that is, the spacing between the side surface 22 of the rotating base 2 and the side surface 1 d of the base 1 changes, and the rotating base 2 is rotated in the circumferential direction (W) within the range of the elongated hole 1 g of the base 1. You. At this time, the rotation base 2
Is rotated clockwise or counterclockwise around the rotation axis 5. Thereby, the distortion of the image projected on the screen 120 is corrected. When the rotation amount of the rotation base 2 is a predetermined amount, the rotation base 2 may act as a horizontal movement in association with the correction of the tilt and tilt.

By the way, the projector unit 130
Are supported by the slide base 4 so as to be movable in the left-right direction on the swing base 3. Therefore, when the position in the left-right direction is slightly finely adjusted, the projector unit 130 can be moved in the left-right direction by directly pressing the projector unit 130 in the target direction. Note that a fine adjustment may be made by providing a handle.

Here, in the present invention, the handle 14
An adjustment unit 300 that automatically adjusts a, b, c, 15, 16 is provided.

FIG. 13 shows a state in which the adjustment unit 300 is attached to the projector device from the back. Next, the structure of the adjustment unit 300 will be described with reference to FIG. FIG. 14 shows an adjustment unit 300.
Is shown in a plan view. FIG. 15 shows a part of the adjustment unit 300 from the side. Further, FIG.
6 shows the adjustment unit 300 from the back. FIG. 17 shows the portion of the rotating body from the handle side (a view seen from arrow Z in FIG. 15).

The adjusting unit 300 includes a case 30 having a bottom.
1, inside the case 301, each handle 1
Rotors aR, bR, cR, dR, and eR that are fitted to 4a, 14b, 14c, 15, 16 are provided.
The rotating bodies aR, bR, cR, dR, and eR are cylindrical,
Rotation shafts 311, 312, rearward from the center of rotation at the bottom
313, 314, 315 are formed to protrude. Here, the rotating shafts are bearings 316, 317, 318, 31
9, 320 so as to be rotatable.

Next, the bearings 316, 317, 318, 31
9, 320 are the corresponding handles 14a, 14 respectively.
b, 14c, 15, and 16 are supported by elastic support members so as to be located at the centers. Thereby, the rotating body a
R, bR, cR, dR, and eR are held in a suspended state.

In FIG. 17, the rotating body aR and the handle 14a
Will be described as a representative.

The bearing 316 is supported by elastic support members 321, 322, 323, 324 arranged at intervals of about 90 degrees. Other bearings 317, 318, 319,
Since the supporting method is the same as the supporting method 320, the description is omitted.
325, 326, 327, and 328 are fixing members for fixing the elastic support members.

Next, each of the rotating bodies aR, bR, cR, dR,
The eR has a toothed portion formed on the outer periphery thereof, and the gears of the rotating shafts of the motors aM, bM, cM, dM, and eM can mesh with the toothed portion, respectively. Motor a
M, bM, cM, dM, and eM are fixed inside the bottom of the adjustment unit 300. Each of them is independently controlled to rotate forward or reverse by a remote controller.

FIG. 17 shows a state in which the rotating body aR and the handle 14a are fitted. Handle 14a
An elastic member provided inside the cylindrical portion of the rotating body aR is in contact with the surroundings, so that the rotating body aR and the handle 14a can rotate integrally. In addition, when the rotating body aR is fitted to the handle 14a, since the rotating body aR is supported by the elastic support member, it is possible to easily cope with even a slight axis deviation.

The case 301 of the adjustment unit 300 can be attached to the rear plate of the projector device with one touch.

[0049]

As described above, according to the projector apparatus of the present invention, the distortion of the screen projected by the projector unit can be adjusted independently or in the vertical direction, the horizontal direction, and the tilt direction independently. . Further, the image can be further enlarged or reduced. The adjustment work in this case can be easily adjusted by a remote controller.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a projector device to which an embodiment of the present invention is applied.

FIG. 2 is a schematic diagram showing the appearance of a regulator that supports the projector device shown in FIG.

FIG. 3 is a plan view of the adjuster shown in FIGS. 1 and 2;

FIG. 4 is a front view of the adjuster shown in the plan view of FIG.

FIG. 5 is a side view of the adjuster shown in the plan view of FIG.

FIG. 6 is a schematic diagram illustrating a structure of a height adjuster of the adjuster illustrated in FIGS. 1 to 5;

FIG. 7 is a schematic diagram illustrating a layer configuration of a base, a rotation base, and a swing base of the adjuster shown in FIGS. 1 to 5;

FIG. 8 is a schematic diagram for explaining a front-rear adjustment mechanism of the adjuster shown in FIGS. 1 to 5;

FIG. 9 is a schematic diagram illustrating a rotation adjusting mechanism of the adjuster illustrated in FIGS. 1 to 5;

FIG. 10 is a schematic diagram illustrating the relationship between the operation of the adjuster shown in FIGS. 1 to 9 and the distortion and magnification of an image projected by the projector unit.

FIG. 11 is a schematic diagram illustrating the relationship between the operation of the adjuster shown in FIGS. 1 to 9 and the distortion and magnification of an image projected by the projector unit.

FIG. 12 is a schematic diagram illustrating the relationship between the operation of the adjuster shown in FIGS. 1 to 9 and the distortion and magnification of an image projected by a projector unit.

FIG. 13 is a view showing a state in which the adjustment unit is attached to the projector device from the back.

FIG. 14 is a plan view showing a part of the adjustment unit.

FIG. 15 is a side view showing a part of the adjustment unit.

FIG. 16 is a diagram showing a part of the adjustment unit from the back.

FIG. 17 is a view showing a portion of a rotating body from a handle side.

[Description of Signs] 1 ... Base stand, 2 ... Rotating base, 3 ... Swing base, 4 ...
Thrust base, 5 ... rotating shaft, 6 ... bolt, 7 ... spring, 8 ... rotating shaft, 8 '... rotating shaft, 9 ... rotating shaft, 10 ...
Worm gear, 11 worm wheel gear, 12 rotating shaft, 13 fixed piece, 14a height adjustment handle, 14
b: height adjustment handle, 14c: height adjustment handle, 1
5 front and rear adjustment handle, 16 ... rotation adjustment handle, 21
... pin, 25 ... nut, 25 '... nut, 26 ... spring,
27 nut, 28 nut with bolt, 31 fixing piece, 43 pin, 44 pin, 100 projector unit, 110 cabinet, 120 screen, 13
0: Projector unit, 140: Projection lens, 1
50 ... adjuster, 151 ... first height adjuster, 152 ... second height adjuster, 153 ... third height adjuster, 154 ...
Front and rear adjustment mechanism, 155: rotation adjustment mechanism, 300: adjustment unit.

Claims (4)

[Claims] 1. A projector device having a position adjustment mechanism for supporting a projector unit at a predetermined position, wherein the position adjustment mechanism is a first device for supporting the projector unit movably in a first direction. A holding member, a second holding member rotatably supported in a plane parallel to the first holding member with respect to the first holding member, and a second holding member with respect to the second holding member. A third holding member movably supported in a second direction orthogonal to the first direction and supported by a plurality of height adjustment mechanisms; the first, second, and third holding members; Coupled to a height adjustment mechanism, the first and second directions, the rotation direction,
And a movable mechanism for adjusting each position in the height direction from a predetermined direction, and an adjustment unit having a motor for controlling rotation of the movable mechanism. 2. The projector according to claim 1, wherein the motor of the adjustment unit is remotely controlled. 3. The movable mechanism has a plurality of handles, the adjustment unit has a plurality of rotating bodies respectively engaged with the plurality of handles, and the plurality of rotating bodies are interlocked with the motor. 3. The method according to claim 2, wherein
The projector device according to any one of the preceding claims. 4. A movable unit that supports the projector unit at a predetermined position, has a plurality of adjustable handles on one side, and rotates the handles to adjust the support position of the projector unit three-dimensionally. A mechanism, a plurality of motors for individually rotating the plurality of handles, and an adjustment unit having a rotating body that is engageable with each of the handles and is driven to rotate by the plurality of motors. A projector device characterized by the above-mentioned.